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500 commits
Author | SHA1 | Message | Date | |
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1efe4cbd7a |
tools headers cpufeatures: Sync with the kernel sources
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61726144c9 |
tools arch x86: Sync the msr-index.h copy with the kernel sources
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1ebdbeb03e |
ARM:
- Proper emulation of the OSLock feature of the debug architecture - Scalibility improvements for the MMU lock when dirty logging is on - New VMID allocator, which will eventually help with SVA in VMs - Better support for PMUs in heterogenous systems - PSCI 1.1 support, enabling support for SYSTEM_RESET2 - Implement CONFIG_DEBUG_LIST at EL2 - Make CONFIG_ARM64_ERRATUM_2077057 default y - Reduce the overhead of VM exit when no interrupt is pending - Remove traces of 32bit ARM host support from the documentation - Updated vgic selftests - Various cleanups, doc updates and spelling fixes RISC-V: - Prevent KVM_COMPAT from being selected - Optimize __kvm_riscv_switch_to() implementation - RISC-V SBI v0.3 support s390: - memop selftest - fix SCK locking - adapter interruptions virtualization for secure guests - add Claudio Imbrenda as maintainer - first step to do proper storage key checking x86: - Continue switching kvm_x86_ops to static_call(); introduce static_call_cond() and __static_call_ret0 when applicable. - Cleanup unused arguments in several functions - Synthesize AMD 0x80000021 leaf - Fixes and optimization for Hyper-V sparse-bank hypercalls - Implement Hyper-V's enlightened MSR bitmap for nested SVM - Remove MMU auditing - Eager splitting of page tables (new aka "TDP" MMU only) when dirty page tracking is enabled - Cleanup the implementation of the guest PGD cache - Preparation for the implementation of Intel IPI virtualization - Fix some segment descriptor checks in the emulator - Allow AMD AVIC support on systems with physical APIC ID above 255 - Better API to disable virtualization quirks - Fixes and optimizations for the zapping of page tables: - Zap roots in two passes, avoiding RCU read-side critical sections that last too long for very large guests backed by 4 KiB SPTEs. - Zap invalid and defunct roots asynchronously via concurrency-managed work queue. - Allowing yielding when zapping TDP MMU roots in response to the root's last reference being put. - Batch more TLB flushes with an RCU trick. Whoever frees the paging structure now holds RCU as a proxy for all vCPUs running in the guest, i.e. to prolongs the grace period on their behalf. It then kicks the the vCPUs out of guest mode before doing rcu_read_unlock(). Generic: - Introduce __vcalloc and use it for very large allocations that need memcg accounting -----BEGIN PGP SIGNATURE----- iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmI4fdwUHHBib256aW5p QHJlZGhhdC5jb20ACgkQv/vSX3jHroMq8gf/WoeVHtw2QlL5Mmz6McvRRmPAYPLV wLUIFNrRqRvd8Tw4kivzZoh/xTpwmnojv0YdK5SjKAiMjgv094YI1LrNp1JSPvmL pitocMkA10RSJNWHeEMg9cMSKH0rKiqeYl6S1e2XsdB+UZZ2BINOCVtvglmjTAvJ dFBdKdBkqjAUZbdXAGIvz4JEEER3N/LkFDKGaUGX+0QIQOzGBPIyLTxynxIDG6mt RViCCFyXdy5NkVp5hZFm96vQ2qAlWL9B9+iKruQN++82+oqWbeTdSqPhdwF7GyFz BfOv3gobQ2c4ef/aMLO5LswZ9joI1t/4kQbbAn6dNybpOAz/NXfDnbNefg== =keox -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull kvm updates from Paolo Bonzini: "ARM: - Proper emulation of the OSLock feature of the debug architecture - Scalibility improvements for the MMU lock when dirty logging is on - New VMID allocator, which will eventually help with SVA in VMs - Better support for PMUs in heterogenous systems - PSCI 1.1 support, enabling support for SYSTEM_RESET2 - Implement CONFIG_DEBUG_LIST at EL2 - Make CONFIG_ARM64_ERRATUM_2077057 default y - Reduce the overhead of VM exit when no interrupt is pending - Remove traces of 32bit ARM host support from the documentation - Updated vgic selftests - Various cleanups, doc updates and spelling fixes RISC-V: - Prevent KVM_COMPAT from being selected - Optimize __kvm_riscv_switch_to() implementation - RISC-V SBI v0.3 support s390: - memop selftest - fix SCK locking - adapter interruptions virtualization for secure guests - add Claudio Imbrenda as maintainer - first step to do proper storage key checking x86: - Continue switching kvm_x86_ops to static_call(); introduce static_call_cond() and __static_call_ret0 when applicable. - Cleanup unused arguments in several functions - Synthesize AMD 0x80000021 leaf - Fixes and optimization for Hyper-V sparse-bank hypercalls - Implement Hyper-V's enlightened MSR bitmap for nested SVM - Remove MMU auditing - Eager splitting of page tables (new aka "TDP" MMU only) when dirty page tracking is enabled - Cleanup the implementation of the guest PGD cache - Preparation for the implementation of Intel IPI virtualization - Fix some segment descriptor checks in the emulator - Allow AMD AVIC support on systems with physical APIC ID above 255 - Better API to disable virtualization quirks - Fixes and optimizations for the zapping of page tables: - Zap roots in two passes, avoiding RCU read-side critical sections that last too long for very large guests backed by 4 KiB SPTEs. - Zap invalid and defunct roots asynchronously via concurrency-managed work queue. - Allowing yielding when zapping TDP MMU roots in response to the root's last reference being put. - Batch more TLB flushes with an RCU trick. Whoever frees the paging structure now holds RCU as a proxy for all vCPUs running in the guest, i.e. to prolongs the grace period on their behalf. It then kicks the the vCPUs out of guest mode before doing rcu_read_unlock(). Generic: - Introduce __vcalloc and use it for very large allocations that need memcg accounting" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (246 commits) KVM: use kvcalloc for array allocations KVM: x86: Introduce KVM_CAP_DISABLE_QUIRKS2 kvm: x86: Require const tsc for RT KVM: x86: synthesize CPUID leaf 0x80000021h if useful KVM: x86: add support for CPUID leaf 0x80000021 KVM: x86: do not use KVM_X86_OP_OPTIONAL_RET0 for get_mt_mask Revert "KVM: x86/mmu: Zap only TDP MMU leafs in kvm_zap_gfn_range()" kvm: x86/mmu: Flush TLB before zap_gfn_range releases RCU KVM: arm64: fix typos in comments KVM: arm64: Generalise VM features into a set of flags KVM: s390: selftests: Add error memop tests KVM: s390: selftests: Add more copy memop tests KVM: s390: selftests: Add named stages for memop test KVM: s390: selftests: Add macro as abstraction for MEM_OP KVM: s390: selftests: Split memop tests KVM: s390x: fix SCK locking RISC-V: KVM: Implement SBI HSM suspend call RISC-V: KVM: Add common kvm_riscv_vcpu_wfi() function RISC-V: Add SBI HSM suspend related defines RISC-V: KVM: Implement SBI v0.3 SRST extension ... |
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2268735045 |
- Add support for a couple new insn sets to the insn decoder: AVX512-FP16,
AMX, other misc insns. - Update VMware-specific MAINTAINERS entries -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmI4URIACgkQEsHwGGHe VUob3A/9GFyqt9bBKrSaq9Rt1UVkq6dQhG3kO7dW5d0YDvy8JmR9is4rNDV9GGx6 A1OAue/gDlZFIz/829oS1qwjB7GZ4Rfb0gRo33bytDLLmd0BRXW7ioZ54jBRnWvy 8dZ2WruMmazK6uJxoHvtOA+Pt3ukb074CZZ1SfW344clWK6FJZeptyRclWaT1Py2 QOIJOxMraCdNAay/1ZvOdIqqdIPx5+JyzbHIYOWUFzwT4y+Q8kFNbigrJnqxe5Ij aqRjzMIvt6MeLwbq9CfLsPFA3gaSzYeOkuXQPcqRgd5LU5ZyXBLStUrGEv1fsMvd 9Kh7VFycZPS7MKzxoEcbuJTTOR4cBsINOlbo9iWr7UD5pm5h7c3vc+nCyia+U+Xo 5XRpf8nitt4a3r1f6HxwXJS0OlBkS4CqexE2OejY4yhWRlxhMcIvRyquU+Z0J4Bp mgDJuXSzfJfFcBzp4jjOBxGPNEjXXOdy/qc/1jR97eMmTKrk3gk/74NWUx9hw4oN 5RGeC+khAD13TL0yVQfKBe5HuLK5tHppAzXAnT2xi6qUn+VJjLxNWgg3iV9tbShM 4q5vJp3BmvNOY8HQv1R3IDFfN0IAL09Q9v6EzEroNuVUhEOzBdH7JSzWkvBBveZb FVgD3I+wNBE1nQD3cP/6DGbRe1JG3ULDF95WJshB8gNJwavlZGs= =f7VZ -----END PGP SIGNATURE----- Merge tag 'x86_misc_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull misc x86 updates from Borislav Petkov: - Add support for a couple new insn sets to the insn decoder: AVX512-FP16, AMX, other misc insns. - Update VMware-specific MAINTAINERS entries * tag 'x86_misc_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: MAINTAINERS: Mark VMware mailing list entries as email aliases MAINTAINERS: Add Zack as maintainer of vmmouse driver MAINTAINERS: Update maintainers for paravirt ops and VMware hypervisor interface x86/insn: Add AVX512-FP16 instructions to the x86 instruction decoder perf/tests: Add AVX512-FP16 instructions to x86 instruction decoder test x86/insn: Add misc instructions to x86 instruction decoder perf/tests: Add misc instructions to the x86 instruction decoder test x86/insn: Add AMX instructions to the x86 instruction decoder perf/tests: Add AMX instructions to x86 instruction decoder test |
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356a1adca8 |
arm64 updates for 5.18
- Support for including MTE tags in ELF coredumps - Instruction encoder updates, including fixes to 64-bit immediate generation and support for the LSE atomic instructions - Improvements to kselftests for MTE and fpsimd - Symbol aliasing and linker script cleanups - Reduce instruction cache maintenance performed for user mappings created using contiguous PTEs - Support for the new "asymmetric" MTE mode, where stores are checked asynchronously but loads are checked synchronously - Support for the latest pointer authentication algorithm ("QARMA3") - Support for the DDR PMU present in the Marvell CN10K platform - Support for the CPU PMU present in the Apple M1 platform - Use the RNDR instruction for arch_get_random_{int,long}() - Update our copy of the Arm optimised string routines for str{n}cmp() - Fix signal frame generation for CPUs which have foolishly elected to avoid building in support for the fpsimd instructions - Workaround for Marvell GICv3 erratum #38545 - Clarification to our Documentation (booting reqs. and MTE prctl()) - Miscellanous cleanups and minor fixes -----BEGIN PGP SIGNATURE----- iQFEBAABCgAuFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAmIvta8QHHdpbGxAa2Vy bmVsLm9yZwAKCRC3rHDchMFjNAIhB/oDSva5FryAFExVuIB+mqRkbZO9kj6fy/5J ctN9LEVO2GI/U1TVAUWop1lXmP8Kbq5UCZOAuY8sz7dAZs7NRUWkwTrXVhaTpi6L oxCfu5Afu76d/TGgivNz+G7/ewIJRFj5zCPmHezLF9iiWPUkcAsP0XCp4a0iOjU4 04O4d7TL/ap9ujEes+U0oEXHnyDTPrVB2OVE316FKD1fgztcjVJ2U+TxX5O4xitT PPIfeQCjQBq1B2OC1cptE3wpP+YEr9OZJbx+Ieweidy1CSInEy0nZ13tLoUnGPGU KPhsvO9daUCbhbd5IDRBuXmTi/sHU4NIB8LNEVzT1mUPnU8pCizv =ziGg -----END PGP SIGNATURE----- Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 updates from Will Deacon: - Support for including MTE tags in ELF coredumps - Instruction encoder updates, including fixes to 64-bit immediate generation and support for the LSE atomic instructions - Improvements to kselftests for MTE and fpsimd - Symbol aliasing and linker script cleanups - Reduce instruction cache maintenance performed for user mappings created using contiguous PTEs - Support for the new "asymmetric" MTE mode, where stores are checked asynchronously but loads are checked synchronously - Support for the latest pointer authentication algorithm ("QARMA3") - Support for the DDR PMU present in the Marvell CN10K platform - Support for the CPU PMU present in the Apple M1 platform - Use the RNDR instruction for arch_get_random_{int,long}() - Update our copy of the Arm optimised string routines for str{n}cmp() - Fix signal frame generation for CPUs which have foolishly elected to avoid building in support for the fpsimd instructions - Workaround for Marvell GICv3 erratum #38545 - Clarification to our Documentation (booting reqs. and MTE prctl()) - Miscellanous cleanups and minor fixes * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (90 commits) docs: sysfs-devices-system-cpu: document "asymm" value for mte_tcf_preferred arm64/mte: Remove asymmetric mode from the prctl() interface arm64: Add cavium_erratum_23154_cpus missing sentinel perf/marvell: Fix !CONFIG_OF build for CN10K DDR PMU driver arm64: mm: Drop 'const' from conditional arm64_dma_phys_limit definition Documentation: vmcoreinfo: Fix htmldocs warning kasan: fix a missing header include of static_keys.h drivers/perf: Add Apple icestorm/firestorm CPU PMU driver drivers/perf: arm_pmu: Handle 47 bit counters arm64: perf: Consistently make all event numbers as 16-bits arm64: perf: Expose some Armv9 common events under sysfs perf/marvell: cn10k DDR perf event core ownership perf/marvell: cn10k DDR perfmon event overflow handling perf/marvell: CN10k DDR performance monitor support dt-bindings: perf: marvell: cn10k ddr performance monitor arm64: clean up tools Makefile perf/arm-cmn: Update watchpoint format perf/arm-cmn: Hide XP PUB events for CMN-600 arm64: drop unused includes of <linux/personality.h> arm64: Do not defer reserve_crashkernel() for platforms with no DMA memory zones ... |
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ec9d50ace3 |
tools headers cpufeatures: Sync with the kernel sources
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3ec94eeaff |
tools kvm headers arm64: Update KVM headers from the kernel sources
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4a01e748a5 |
- Mitigate Spectre v2-type Branch History Buffer attacks on machines
which support eIBRS, i.e., the hardware-assisted speculation restriction after it has been shown that such machines are vulnerable even with the hardware mitigation. - Do not use the default LFENCE-based Spectre v2 mitigation on AMD as it is insufficient to mitigate such attacks. Instead, switch to retpolines on all AMD by default. - Update the docs and add some warnings for the obviously vulnerable cmdline configurations. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmIkktUACgkQEsHwGGHe VUo7ZQ/+O4hzL/tHY0V/ekkDxCrJ3q3Hp+DcxUl2ee5PC3Qgxv1Z1waH6ppK8jQs marAGr7FYbvzY039ON7irxhpSIckBCpx9tM2F43zsPxxY8EdxGojkHbmaqso5HtW l3/O28AcZYoKN/fF8rRAIJy4hrTVascKrNJ2fOiYWYBT62ZIoPm0FusgXbKTZPD+ gT7iUMoyPjBnKdWDT9L6kKOxDF9TivX1Y6JdDHbnnBsgRkeFatkeq9BJ93M73q63 Ziq9c8ZcEXyKez+cGFCfXM7+pNYmfsiL48lilTyf+v+GXahDJQOkFw39j5zXEALm Nk6yB3PRQ74pEwm5WbK7KO8iwPpblmnDB978mfUcpk+9xWJD8pyoUcItAmCBsXh1 LjIImYPqL6YihUb9udh+PEDISsfzWNzr4T+kgW9/yXXG4ZmGy3TLInhTK+rNAxJa EshWZExEZj6yJvt83Vu08W9fppYJq976tJvl8LWOYthaxqY7IQz0q7mYd799yxk0 MLPqvZP1+4pHzqn2c9yeHgrwHwMmoqcyMx6B3EA5maYQPdlT7Fk9RCBeCdIA/ieF OgGxy1WwMH+cvUa5MaBy3Y32LeYU3bUJh0yPFq/7BxEYGG9PJtLhg2xTo1Ui8F1d fKrcSFcjZKVJ9UE5HaqOcp4ka+Q220I9IDGURXkAFQlnOU7X7CE= =Athd -----END PGP SIGNATURE----- Merge tag 'x86_bugs_for_v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 spectre fixes from Borislav Petkov: - Mitigate Spectre v2-type Branch History Buffer attacks on machines which support eIBRS, i.e., the hardware-assisted speculation restriction after it has been shown that such machines are vulnerable even with the hardware mitigation. - Do not use the default LFENCE-based Spectre v2 mitigation on AMD as it is insufficient to mitigate such attacks. Instead, switch to retpolines on all AMD by default. - Update the docs and add some warnings for the obviously vulnerable cmdline configurations. * tag 'x86_bugs_for_v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/speculation: Warn about eIBRS + LFENCE + Unprivileged eBPF + SMT x86/speculation: Warn about Spectre v2 LFENCE mitigation x86/speculation: Update link to AMD speculation whitepaper x86/speculation: Use generic retpoline by default on AMD x86/speculation: Include unprivileged eBPF status in Spectre v2 mitigation reporting Documentation/hw-vuln: Update spectre doc x86/speculation: Add eIBRS + Retpoline options x86/speculation: Rename RETPOLINE_AMD to RETPOLINE_LFENCE |
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f6d92cfc79 |
tools arch x86: Add Intel SDSi provisiong tool
Add tool for key certificate and activation payload provisioning on Intel CPUs supporting Software Defined Silicon (SDSi). Signed-off-by: David E. Box <david.e.box@linux.intel.com> Link: https://lore.kernel.org/r/20220225012457.1661574-1-david.e.box@linux.intel.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> |
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1c4b5ecb7e |
remove the h8300 architecture
Signed-off-by: Christoph Hellwig <hch@lst.de> |
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5b061a322b |
tools arch x86: Sync the msr-index.h copy with the kernel sources
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7be2e31964 |
x86: clean up symbol aliasing
Now that we have SYM_FUNC_ALIAS() and SYM_FUNC_ALIAS_WEAK(), use those to simplify the definition of function aliases across arch/x86. For clarity, where there are multiple annotations such as EXPORT_SYMBOL(), I've tried to keep annotations grouped by symbol. For example, where a function has a name and an alias which are both exported, this is organised as: SYM_FUNC_START(func) ... asm insns ... SYM_FUNC_END(func) EXPORT_SYMBOL(func) SYM_FUNC_ALIAS(alias, func) EXPORT_SYMBOL(alias) Where there are only aliases and no exports or other annotations, I have not bothered with line spacing, e.g. SYM_FUNC_START(func) ... asm insns ... SYM_FUNC_END(func) SYM_FUNC_ALIAS(alias, func) The tools/perf/ copies of memset_64.S and memset_64.S are updated likewise to avoid the build system complaining these are mismatched: | Warning: Kernel ABI header at 'tools/arch/x86/lib/memcpy_64.S' differs from latest version at 'arch/x86/lib/memcpy_64.S' | diff -u tools/arch/x86/lib/memcpy_64.S arch/x86/lib/memcpy_64.S | Warning: Kernel ABI header at 'tools/arch/x86/lib/memset_64.S' differs from latest version at 'arch/x86/lib/memset_64.S' | diff -u tools/arch/x86/lib/memset_64.S arch/x86/lib/memset_64.S There should be no functional change as a result of this patch. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Ard Biesheuvel <ardb@kernel.org> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Acked-by: Mark Brown <broonie@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20220216162229.1076788-4-mark.rutland@arm.com Signed-off-by: Will Deacon <will@kernel.org> |
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d45476d983 |
x86/speculation: Rename RETPOLINE_AMD to RETPOLINE_LFENCE
The RETPOLINE_AMD name is unfortunate since it isn't necessarily AMD only, in fact Hygon also uses it. Furthermore it will likely be sufficient for some Intel processors. Therefore rename the thing to RETPOLINE_LFENCE to better describe what it is. Add the spectre_v2=retpoline,lfence option as an alias to spectre_v2=retpoline,amd to preserve existing setups. However, the output of /sys/devices/system/cpu/vulnerabilities/spectre_v2 will be changed. [ bp: Fix typos, massage. ] Co-developed-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> |
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6ee7fca2a4 |
KVM: arm64: Add KVM_ARM_VCPU_PMU_V3_SET_PMU attribute
When KVM creates an event and there are more than one PMUs present on the system, perf_init_event() will go through the list of available PMUs and will choose the first one that can create the event. The order of the PMUs in this list depends on the probe order, which can change under various circumstances, for example if the order of the PMU nodes change in the DTB or if asynchronous driver probing is enabled on the kernel command line (with the driver_async_probe=armv8-pmu option). Another consequence of this approach is that on heteregeneous systems all virtual machines that KVM creates will use the same PMU. This might cause unexpected behaviour for userspace: when a VCPU is executing on the physical CPU that uses this default PMU, PMU events in the guest work correctly; but when the same VCPU executes on another CPU, PMU events in the guest will suddenly stop counting. Fortunately, perf core allows user to specify on which PMU to create an event by using the perf_event_attr->type field, which is used by perf_init_event() as an index in the radix tree of available PMUs. Add the KVM_ARM_VCPU_PMU_V3_CTRL(KVM_ARM_VCPU_PMU_V3_SET_PMU) VCPU attribute to allow userspace to specify the arm_pmu that KVM will use when creating events for that VCPU. KVM will make no attempt to run the VCPU on the physical CPUs that share the PMU, leaving it up to userspace to manage the VCPU threads' affinity accordingly. To ensure that KVM doesn't expose an asymmetric system to the guest, the PMU set for one VCPU will be used by all other VCPUs. Once a VCPU has run, the PMU cannot be changed in order to avoid changing the list of available events for a VCPU, or to change the semantics of existing events. Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220127161759.53553-6-alexandru.elisei@arm.com |
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d5381cc9f1 |
tools headers cpufeatures: Sync with the kernel sources
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3cd7cd8a62 |
Two larger x86 series:
* Redo incorrect fix for SEV/SMAP erratum * Windows 11 Hyper-V workaround Other x86 changes: * Various x86 cleanups * Re-enable access_tracking_perf_test * Fix for #GP handling on SVM * Fix for CPUID leaf 0Dh in KVM_GET_SUPPORTED_CPUID * Fix for ICEBP in interrupt shadow * Avoid false-positive RCU splat * Enable Enlightened MSR-Bitmap support for real ARM: * Correctly update the shadow register on exception injection when running in nVHE mode * Correctly use the mm_ops indirection when performing cache invalidation from the page-table walker * Restrict the vgic-v3 workaround for SEIS to the two known broken implementations Generic code changes: * Dead code cleanup There will be another pull request for ARM fixes next week, but those patches need a bit more soak time. -----BEGIN PGP SIGNATURE----- iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmHz5eIUHHBib256aW5p QHJlZGhhdC5jb20ACgkQv/vSX3jHroNv4wgAopj0Zlutrrtw3KT4/XnmSdMPgN0j jQNzysSLTO5wGQCEogycjYXkGUDFu1Gdi+K91QAyjeKja20pIhPLeS2CBDRJyOc5 73K7sxqz51JnQiVFzkTuA+qzn+lXaJ9LUXtdg8BnQMSKyt2AJOqE8uT10kcYOD5q mW4V3QUA0QpVKN0cYHv/G/zvBwQGGSLZetFbuAzwH2EDTpIi1aio5ZN1r0AoH18L 2x5kYPpqmnoBvo2cB4b7SNmxv3ZPQ5K+wta0uwZ4pO+UuYiRd84RPr5lErywJC3w nci0eC0DoXrC6h+35UItqM8RqAGv6LADbDnr1RGojmfogSD0OtbX8y3hjw== =iKnI -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull kvm fixes from Paolo Bonzini: "Two larger x86 series: - Redo incorrect fix for SEV/SMAP erratum - Windows 11 Hyper-V workaround Other x86 changes: - Various x86 cleanups - Re-enable access_tracking_perf_test - Fix for #GP handling on SVM - Fix for CPUID leaf 0Dh in KVM_GET_SUPPORTED_CPUID - Fix for ICEBP in interrupt shadow - Avoid false-positive RCU splat - Enable Enlightened MSR-Bitmap support for real ARM: - Correctly update the shadow register on exception injection when running in nVHE mode - Correctly use the mm_ops indirection when performing cache invalidation from the page-table walker - Restrict the vgic-v3 workaround for SEIS to the two known broken implementations Generic code changes: - Dead code cleanup" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (43 commits) KVM: eventfd: Fix false positive RCU usage warning KVM: nVMX: Allow VMREAD when Enlightened VMCS is in use KVM: nVMX: Implement evmcs_field_offset() suitable for handle_vmread() KVM: nVMX: Rename vmcs_to_field_offset{,_table} KVM: nVMX: eVMCS: Filter out VM_EXIT_SAVE_VMX_PREEMPTION_TIMER KVM: nVMX: Also filter MSR_IA32_VMX_TRUE_PINBASED_CTLS when eVMCS selftests: kvm: check dynamic bits against KVM_X86_XCOMP_GUEST_SUPP KVM: x86: add system attribute to retrieve full set of supported xsave states KVM: x86: Add a helper to retrieve userspace address from kvm_device_attr selftests: kvm: move vm_xsave_req_perm call to amx_test KVM: x86: Sync the states size with the XCR0/IA32_XSS at, any time KVM: x86: Update vCPU's runtime CPUID on write to MSR_IA32_XSS KVM: x86: Keep MSR_IA32_XSS unchanged for INIT KVM: x86: Free kvm_cpuid_entry2 array on post-KVM_RUN KVM_SET_CPUID{,2} KVM: nVMX: WARN on any attempt to allocate shadow VMCS for vmcs02 KVM: selftests: Don't skip L2's VMCALL in SMM test for SVM guest KVM: x86: Check .flags in kvm_cpuid_check_equal() too KVM: x86: Forcibly leave nested virt when SMM state is toggled KVM: SVM: drop unnecessary code in svm_hv_vmcb_dirty_nested_enlightenments() KVM: SVM: hyper-v: Enable Enlightened MSR-Bitmap support for real ... |
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b19c99b9f4 |
selftests: kvm: check dynamic bits against KVM_X86_XCOMP_GUEST_SUPP
Provide coverage for the new API. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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16273fa4f3 |
x86/insn: Add AVX512-FP16 instructions to the x86 instruction decoder
The x86 instruction decoder is used for both kernel instructions and user space instructions (e.g. uprobes, perf tools Intel PT), so it is good to update it with new instructions. Add AVX512-FP16 instructions to x86 instruction decoder. Note the EVEX map field is extended by 1 bit, and most instructions are in map 5 and map 6. Reference: Intel AVX512-FP16 Architecture Specification June 2021 Revision 1.0 Document Number: 347407-001US Example using perf tools' x86 instruction decoder test: $ perf test -v "x86 instruction decoder" |& grep vfcmaddcph | head -2 Decoded ok: 62 f6 6f 48 56 cb vfcmaddcph %zmm3,%zmm2,%zmm1 Decoded ok: 62 f6 6f 48 56 8c c8 78 56 34 12 vfcmaddcph 0x12345678(%eax,%ecx,8),%zmm2,%zmm1 Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Link: https://lore.kernel.org/r/20211202095029.2165714-7-adrian.hunter@intel.com |
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0153d98f2d |
x86/insn: Add misc instructions to x86 instruction decoder
x86 instruction decoder is used for both kernel instructions and user space instructions (e.g. uprobes, perf tools Intel PT), so it is good to update it with new instructions. Add instructions to x86 instruction decoder: User Interrupt clui senduipi stui testui uiret Prediction history reset hreset Serialize instruction execution serialize TSX suspend load address tracking xresldtrk xsusldtrk Reference: Intel Architecture Instruction Set Extensions and Future Features Programming Reference May 2021 Document Number: 319433-044 Example using perf tools' x86 instruction decoder test: $ perf test -v "x86 instruction decoder" |& grep -i hreset Decoded ok: f3 0f 3a f0 c0 00 hreset $0x0 Decoded ok: f3 0f 3a f0 c0 00 hreset $0x0 Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Link: https://lore.kernel.org/r/20211202095029.2165714-5-adrian.hunter@intel.com |
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9dd94df75b |
x86/insn: Add AMX instructions to the x86 instruction decoder
The x86 instruction decoder is used for both kernel instructions and user space instructions (e.g. uprobes, perf tools Intel PT), so it is good to update it with new instructions. Add AMX instructions to the x86 instruction decoder. Reference: Intel Architecture Instruction Set Extensions and Future Features Programming Reference May 2021 Document Number: 319433-044 Example using perf tools' x86 instruction decoder test: $ INSN='ldtilecfg\|sttilecfg\|tdpbf16ps\|tdpbssd\|' $ INSN+='tdpbsud\|tdpbusd\|'tdpbuud\|tileloadd\|' $ INSN+='tileloaddt1\|tilerelease\|tilestored\|tilezero' $ perf test -v "x86 instruction decoder" |& grep -i $INSN Decoded ok: c4 e2 78 49 04 c8 ldtilecfg (%rax,%rcx,8) Decoded ok: c4 c2 78 49 04 c8 ldtilecfg (%r8,%rcx,8) Decoded ok: c4 e2 79 49 04 c8 sttilecfg (%rax,%rcx,8) Decoded ok: c4 c2 79 49 04 c8 sttilecfg (%r8,%rcx,8) Decoded ok: c4 e2 7a 5c d1 tdpbf16ps %tmm0,%tmm1,%tmm2 Decoded ok: c4 e2 7b 5e d1 tdpbssd %tmm0,%tmm1,%tmm2 Decoded ok: c4 e2 7a 5e d1 tdpbsud %tmm0,%tmm1,%tmm2 Decoded ok: c4 e2 79 5e d1 tdpbusd %tmm0,%tmm1,%tmm2 Decoded ok: c4 e2 78 5e d1 tdpbuud %tmm0,%tmm1,%tmm2 Decoded ok: c4 e2 7b 4b 0c c8 tileloadd (%rax,%rcx,8),%tmm1 Decoded ok: c4 c2 7b 4b 14 c8 tileloadd (%r8,%rcx,8),%tmm2 Decoded ok: c4 e2 79 4b 0c c8 tileloaddt1 (%rax,%rcx,8),%tmm1 Decoded ok: c4 c2 79 4b 14 c8 tileloaddt1 (%r8,%rcx,8),%tmm2 Decoded ok: c4 e2 78 49 c0 tilerelease Decoded ok: c4 e2 7a 4b 0c c8 tilestored %tmm1,(%rax,%rcx,8) Decoded ok: c4 c2 7a 4b 14 c8 tilestored %tmm2,(%r8,%rcx,8) Decoded ok: c4 e2 7b 49 c0 tilezero %tmm0 Decoded ok: c4 e2 7b 49 f8 tilezero %tmm7 Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Link: https://lore.kernel.org/r/20211202095029.2165714-3-adrian.hunter@intel.com |
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8326c79d10 |
tools headers UAPI: Sync x86 arch prctl headers with the kernel sources
To pick the changes in this cset:
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57d17378a4 |
perf tools changes for v5.17: 1st batch
New features: - Add 'trace' subcommand for 'perf ftrace', setting the stage for more 'perf ftrace' subcommands. Not using a subcommand yields the previous behaviour of 'perf ftrace'. - Add 'latency' subcommand to 'perf ftrace', that can use the function graph tracer or a BPF optimized one, via the -b/--use-bpf option. E.g.: $ sudo perf ftrace latency -a -T mutex_lock sleep 1 # DURATION | COUNT | GRAPH | 0 - 1 us | 4596 | ######################## | 1 - 2 us | 1680 | ######### | 2 - 4 us | 1106 | ##### | 4 - 8 us | 546 | ## | 8 - 16 us | 562 | ### | 16 - 32 us | 1 | | 32 - 64 us | 0 | | 64 - 128 us | 0 | | 128 - 256 us | 0 | | 256 - 512 us | 0 | | 512 - 1024 us | 0 | | 1 - 2 ms | 0 | | 2 - 4 ms | 0 | | 4 - 8 ms | 0 | | 8 - 16 ms | 0 | | 16 - 32 ms | 0 | | 32 - 64 ms | 0 | | 64 - 128 ms | 0 | | 128 - 256 ms | 0 | | 256 - 512 ms | 0 | | 512 - 1024 ms | 0 | | 1 - ... s | 0 | | The original implementation of this command was in the bcc tool. - Support --cputype option for hybrid events in 'perf stat'. Improvements: - Call chain improvements for ARM64. - No need to do any affinity setup when profiling pids. - Reduce multiplexing with duration_time in 'perf stat' metrics. - Improve error message for uncore events, stating that some event groups are can only be used in system wide (-a) mode. - perf stat metric group leader fixes/improvements, including arch specific changes to better support Intel topdown events. - Probe non-deprecated sysfs path 1st, i.e. try /sys/devices/system/cpu/cpuN/topology/thread_siblings first, then the old /sys/devices/system/cpu/cpuN/topology/core_cpus. - Disable debuginfod by default in 'perf record', to avoid stalls on distros such as Fedora 35. - Use unbuffered output in 'perf bench' when pipe/tee'ing to a file. - Enable ignore_missing_thread in 'perf trace' Fixes: - Avoid TUI crash when navigating in the annotation of recursive functions. - Fix hex dump character output in 'perf script'. - Fix JSON indentation to 4 spaces standard in the ARM vendor event files. - Fix use after free in metric__new(). - Fix IS_ERR_OR_NULL() usage in the perf BPF loader. - Fix up cross-arch register support, i.e. when printing register names take into account the architecture where the perf.data file was collected. - Fix SMT fallback with large core counts. - Don't lower case MetricExpr when parsing JSON files so as not to lose info such as the ":G" event modifier in metrics. perf test: - Add basic stress test for sigtrap handling to 'perf test'. - Fix 'perf test' failures on s/390 - Enable system wide for metricgroups test in 'perf test´. - Use 3 digits for test numbering now we can have more tests. Arch specific: - Add events for Arm Neoverse N2 in the ARM JSON vendor event files - Support PERF_MEM_LVLNUM encodings in powerpc, that came from a single patch series, where I incorrectly merged the kernel bits, that were then reverted after coordination with Michael Ellerman and Stephen Rothwell. - Add ARM SPE total latency as PERF_SAMPLE_WEIGHT. - Update AMD documentation, with info on raw event encoding. - Add support for global and local variants of the "p_stage_cyc" sort key, applicable to perf.data files collected on powerpc. - Remove duplicate and incorrect aux size checks in the ARM CoreSight ETM code. Refactorings: - Add a perf_cpu abstraction to disambiguate CPUs and CPU map indexes, fixing problems along the way. - Document CPU map methods. UAPI sync: - Update arch/x86/lib/mem{cpy,set}_64.S copies used in 'perf bench mem memcpy' - Sync UAPI files with the kernel sources: drm, msr-index, cpufeatures. Build system - Enable warnings through HOSTCFLAGS. - Drop requirement for libstdc++.so for libopencsd check libperf: - Make libperf adopt perf_counts_values__scale() from tools/perf/util/. - Add a stat multiplexing test to libperf. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQR2GiIUctdOfX2qHhGyPKLppCJ+JwUCYeQj6AAKCRCyPKLppCJ+ JwyWAQCBmU8OJxhSJQnNCwTB9zNkPPBbihvIztepOJ7zsw7JcQD+KfAidHGQvI/Y EmXIYkmdNkWPYJafONllnKK5cckjxgI= =aj9V -----END PGP SIGNATURE----- Merge tag 'perf-tools-for-v5.17-2022-01-16' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux Pull perf tool updates from Arnaldo Carvalho de Melo: "New features: - Add 'trace' subcommand for 'perf ftrace', setting the stage for more 'perf ftrace' subcommands. Not using a subcommand yields the previous behaviour of 'perf ftrace'. - Add 'latency' subcommand to 'perf ftrace', that can use the function graph tracer or a BPF optimized one, via the -b/--use-bpf option. E.g.: $ sudo perf ftrace latency -a -T mutex_lock sleep 1 # DURATION | COUNT | GRAPH | 0 - 1 us | 4596 | ######################## | 1 - 2 us | 1680 | ######### | 2 - 4 us | 1106 | ##### | 4 - 8 us | 546 | ## | 8 - 16 us | 562 | ### | 16 - 32 us | 1 | | 32 - 64 us | 0 | | 64 - 128 us | 0 | | 128 - 256 us | 0 | | 256 - 512 us | 0 | | 512 - 1024 us | 0 | | 1 - 2 ms | 0 | | 2 - 4 ms | 0 | | 4 - 8 ms | 0 | | 8 - 16 ms | 0 | | 16 - 32 ms | 0 | | 32 - 64 ms | 0 | | 64 - 128 ms | 0 | | 128 - 256 ms | 0 | | 256 - 512 ms | 0 | | 512 - 1024 ms | 0 | | 1 - ... s | 0 | | The original implementation of this command was in the bcc tool. - Support --cputype option for hybrid events in 'perf stat'. Improvements: - Call chain improvements for ARM64. - No need to do any affinity setup when profiling pids. - Reduce multiplexing with duration_time in 'perf stat' metrics. - Improve error message for uncore events, stating that some event groups are can only be used in system wide (-a) mode. - perf stat metric group leader fixes/improvements, including arch specific changes to better support Intel topdown events. - Probe non-deprecated sysfs path first, i.e. try the path /sys/devices/system/cpu/cpuN/topology/thread_siblings first, then the old /sys/devices/system/cpu/cpuN/topology/core_cpus. - Disable debuginfod by default in 'perf record', to avoid stalls on distros such as Fedora 35. - Use unbuffered output in 'perf bench' when pipe/tee'ing to a file. - Enable ignore_missing_thread in 'perf trace' Fixes: - Avoid TUI crash when navigating in the annotation of recursive functions. - Fix hex dump character output in 'perf script'. - Fix JSON indentation to 4 spaces standard in the ARM vendor event files. - Fix use after free in metric__new(). - Fix IS_ERR_OR_NULL() usage in the perf BPF loader. - Fix up cross-arch register support, i.e. when printing register names take into account the architecture where the perf.data file was collected. - Fix SMT fallback with large core counts. - Don't lower case MetricExpr when parsing JSON files so as not to lose info such as the ":G" event modifier in metrics. perf test: - Add basic stress test for sigtrap handling to 'perf test'. - Fix 'perf test' failures on s/390 - Enable system wide for metricgroups test in 'perf test´. - Use 3 digits for test numbering now we can have more tests. Arch specific: - Add events for Arm Neoverse N2 in the ARM JSON vendor event files - Support PERF_MEM_LVLNUM encodings in powerpc, that came from a single patch series, where I incorrectly merged the kernel bits, that were then reverted after coordination with Michael Ellerman and Stephen Rothwell. - Add ARM SPE total latency as PERF_SAMPLE_WEIGHT. - Update AMD documentation, with info on raw event encoding. - Add support for global and local variants of the "p_stage_cyc" sort key, applicable to perf.data files collected on powerpc. - Remove duplicate and incorrect aux size checks in the ARM CoreSight ETM code. Refactorings: - Add a perf_cpu abstraction to disambiguate CPUs and CPU map indexes, fixing problems along the way. - Document CPU map methods. UAPI sync: - Update arch/x86/lib/mem{cpy,set}_64.S copies used in 'perf bench mem memcpy' - Sync UAPI files with the kernel sources: drm, msr-index, cpufeatures. Build system - Enable warnings through HOSTCFLAGS. - Drop requirement for libstdc++.so for libopencsd check libperf: - Make libperf adopt perf_counts_values__scale() from tools/perf/util/. - Add a stat multiplexing test to libperf" * tag 'perf-tools-for-v5.17-2022-01-16' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (115 commits) perf record: Disable debuginfod by default perf evlist: No need to do any affinity setup when profiling pids perf cpumap: Add is_dummy() method perf metric: Fix metric_leader perf cputopo: Fix CPU topology reading on s/390 perf metricgroup: Fix use after free in metric__new() libperf tests: Update a use of the new cpumap API perf arm: Fix off-by-one directory path tools arch x86: Sync the msr-index.h copy with the kernel sources tools headers cpufeatures: Sync with the kernel sources tools headers UAPI: Update tools's copy of drm.h header tools arch: Update arch/x86/lib/mem{cpy,set}_64.S copies used in 'perf bench mem memcpy' perf pmu-events: Don't lower case MetricExpr perf expr: Add debug logging for literals perf tools: Probe non-deprecated sysfs path 1st perf tools: Fix SMT fallback with large core counts perf cpumap: Give CPUs their own type perf stat: Correct first_shadow_cpu to return index perf script: Fix flipped index and cpu perf c2c: Use more intention revealing iterator ... |
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79e06c4c49 |
RISCV:
- Use common KVM implementation of MMU memory caches - SBI v0.2 support for Guest - Initial KVM selftests support - Fix to avoid spurious virtual interrupts after clearing hideleg CSR - Update email address for Anup and Atish ARM: - Simplification of the 'vcpu first run' by integrating it into KVM's 'pid change' flow - Refactoring of the FP and SVE state tracking, also leading to a simpler state and less shared data between EL1 and EL2 in the nVHE case - Tidy up the header file usage for the nvhe hyp object - New HYP unsharing mechanism, finally allowing pages to be unmapped from the Stage-1 EL2 page-tables - Various pKVM cleanups around refcounting and sharing - A couple of vgic fixes for bugs that would trigger once the vcpu xarray rework is merged, but not sooner - Add minimal support for ARMv8.7's PMU extension - Rework kvm_pgtable initialisation ahead of the NV work - New selftest for IRQ injection - Teach selftests about the lack of default IPA space and page sizes - Expand sysreg selftest to deal with Pointer Authentication - The usual bunch of cleanups and doc update s390: - fix sigp sense/start/stop/inconsistency - cleanups x86: - Clean up some function prototypes more - improved gfn_to_pfn_cache with proper invalidation, used by Xen emulation - add KVM_IRQ_ROUTING_XEN_EVTCHN and event channel delivery - completely remove potential TOC/TOU races in nested SVM consistency checks - update some PMCs on emulated instructions - Intel AMX support (joint work between Thomas and Intel) - large MMU cleanups - module parameter to disable PMU virtualization - cleanup register cache - first part of halt handling cleanups - Hyper-V enlightened MSR bitmap support for nested hypervisors Generic: - clean up Makefiles - introduce CONFIG_HAVE_KVM_DIRTY_RING - optimize memslot lookup using a tree - optimize vCPU array usage by converting to xarray -----BEGIN PGP SIGNATURE----- iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmHhxvsUHHBib256aW5p QHJlZGhhdC5jb20ACgkQv/vSX3jHroPZkAf+Nz92UL/5nNGcdHtE4m7AToMmitE9 bYkesf9BMQvAe5wjkABLuoHGi6ay4jabo4fiGzbdkiK7lO5YgfsWiMB3/MT5fl4E jRPzaVQabp3YZLM8UYCBmfUVuRj524S967SfSRe0AvYjDEH8y7klPf4+7sCsFT0/ Px9Vf2KGuOlf0eM78yKg4rGaF0jS22eLgXm6FfNMY8/e29ZAo/jyUmqBY+Z2xxZG aWhceDtSheW1jwLHLj3nOlQJvHTn8LVGXBE/R8Gda3ZjrBV2rKaDi4Fh+HD+dz86 2zVXwzQ7uck2CMW73GMoXMTWoKSHMyvlBOs1BdvBm4UsnGcXR+q8IFCeuQ== =s73m -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull kvm updates from Paolo Bonzini: "RISCV: - Use common KVM implementation of MMU memory caches - SBI v0.2 support for Guest - Initial KVM selftests support - Fix to avoid spurious virtual interrupts after clearing hideleg CSR - Update email address for Anup and Atish ARM: - Simplification of the 'vcpu first run' by integrating it into KVM's 'pid change' flow - Refactoring of the FP and SVE state tracking, also leading to a simpler state and less shared data between EL1 and EL2 in the nVHE case - Tidy up the header file usage for the nvhe hyp object - New HYP unsharing mechanism, finally allowing pages to be unmapped from the Stage-1 EL2 page-tables - Various pKVM cleanups around refcounting and sharing - A couple of vgic fixes for bugs that would trigger once the vcpu xarray rework is merged, but not sooner - Add minimal support for ARMv8.7's PMU extension - Rework kvm_pgtable initialisation ahead of the NV work - New selftest for IRQ injection - Teach selftests about the lack of default IPA space and page sizes - Expand sysreg selftest to deal with Pointer Authentication - The usual bunch of cleanups and doc update s390: - fix sigp sense/start/stop/inconsistency - cleanups x86: - Clean up some function prototypes more - improved gfn_to_pfn_cache with proper invalidation, used by Xen emulation - add KVM_IRQ_ROUTING_XEN_EVTCHN and event channel delivery - completely remove potential TOC/TOU races in nested SVM consistency checks - update some PMCs on emulated instructions - Intel AMX support (joint work between Thomas and Intel) - large MMU cleanups - module parameter to disable PMU virtualization - cleanup register cache - first part of halt handling cleanups - Hyper-V enlightened MSR bitmap support for nested hypervisors Generic: - clean up Makefiles - introduce CONFIG_HAVE_KVM_DIRTY_RING - optimize memslot lookup using a tree - optimize vCPU array usage by converting to xarray" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (268 commits) x86/fpu: Fix inline prefix warnings selftest: kvm: Add amx selftest selftest: kvm: Move struct kvm_x86_state to header selftest: kvm: Reorder vcpu_load_state steps for AMX kvm: x86: Disable interception for IA32_XFD on demand x86/fpu: Provide fpu_sync_guest_vmexit_xfd_state() kvm: selftests: Add support for KVM_CAP_XSAVE2 kvm: x86: Add support for getting/setting expanded xstate buffer x86/fpu: Add uabi_size to guest_fpu kvm: x86: Add CPUID support for Intel AMX kvm: x86: Add XCR0 support for Intel AMX kvm: x86: Disable RDMSR interception of IA32_XFD_ERR kvm: x86: Emulate IA32_XFD_ERR for guest kvm: x86: Intercept #NM for saving IA32_XFD_ERR x86/fpu: Prepare xfd_err in struct fpu_guest kvm: x86: Add emulation for IA32_XFD x86/fpu: Provide fpu_update_guest_xfd() for IA32_XFD emulation kvm: x86: Enable dynamic xfeatures at KVM_SET_CPUID2 x86/fpu: Provide fpu_enable_guest_xfd_features() for KVM x86/fpu: Add guest support to xfd_enable_feature() ... |
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415a3c33e8 |
kvm: selftests: Add support for KVM_CAP_XSAVE2
When KVM_CAP_XSAVE2 is supported, userspace is expected to allocate buffer for KVM_GET_XSAVE2 and KVM_SET_XSAVE using the size returned by KVM_CHECK_EXTENSION(KVM_CAP_XSAVE2). Signed-off-by: Wei Wang <wei.w.wang@intel.com> Signed-off-by: Guang Zeng <guang.zeng@intel.com> Signed-off-by: Jing Liu <jing2.liu@intel.com> Signed-off-by: Yang Zhong <yang.zhong@intel.com> Message-Id: <20220105123532.12586-20-yang.zhong@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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e652ab64e5 |
tools arch x86: Sync the msr-index.h copy with the kernel sources
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486e5ed888 |
tools headers cpufeatures: Sync with the kernel sources
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35cb8c713a |
tools arch: Update arch/x86/lib/mem{cpy,set}_64.S copies used in 'perf bench mem memcpy'
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c6dbd3e5e6 |
x86/mmx_32: Remove X86_USE_3DNOW
This code puts an exception table entry on the PREFETCH instruction to overwrite it with a JMP.d8 when it triggers an exception. Except of course, our code is no longer writable, also SMP. Instead of fixing this broken mess, simply take it out. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/YZKQzUmeNuwyvZpk@hirez.programming.kicks-ass.net |
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162b944598 |
tools headers UAPI: Sync x86's asm/kvm.h with the kernel sources
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b075c1d81e |
tools headers cpufeatures: Sync with the kernel sources
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3442b5e05a |
tools arch x86: Sync the msr-index.h copy with the kernel sources
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5b749efe2d |
tools headers UAPI: Sync arch prctl headers with the kernel sources
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7f9f879243 |
Merge remote-tracking branch 'torvalds/master' into perf/core
To pick up some tools/perf/ patches that went via tip/perf/core, such as: tools/perf: Add mem_hops field in perf_mem_data_src structure Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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d7e0a795bf |
ARM:
* More progress on the protected VM front, now with the full fixed feature set as well as the limitation of some hypercalls after initialisation. * Cleanup of the RAZ/WI sysreg handling, which was pointlessly complicated * Fixes for the vgic placement in the IPA space, together with a bunch of selftests * More memcg accounting of the memory allocated on behalf of a guest * Timer and vgic selftests * Workarounds for the Apple M1 broken vgic implementation * KConfig cleanups * New kvmarm.mode=none option, for those who really dislike us RISC-V: * New KVM port. x86: * New API to control TSC offset from userspace * TSC scaling for nested hypervisors on SVM * Switch masterclock protection from raw_spin_lock to seqcount * Clean up function prototypes in the page fault code and avoid repeated memslot lookups * Convey the exit reason to userspace on emulation failure * Configure time between NX page recovery iterations * Expose Predictive Store Forwarding Disable CPUID leaf * Allocate page tracking data structures lazily (if the i915 KVM-GT functionality is not compiled in) * Cleanups, fixes and optimizations for the shadow MMU code s390: * SIGP Fixes * initial preparations for lazy destroy of secure VMs * storage key improvements/fixes * Log the guest CPNC Starting from this release, KVM-PPC patches will come from Michael Ellerman's PPC tree. -----BEGIN PGP SIGNATURE----- iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmGBOiEUHHBib256aW5p QHJlZGhhdC5jb20ACgkQv/vSX3jHroNowwf/axlx3g9sgCwQHr12/6UF/7hL/RwP 9z+pGiUzjl2YQE+RjSvLqyd6zXh+h4dOdOKbZDLSkSTbcral/8U70ojKnQsXM0XM 1LoymxBTJqkgQBLm9LjYreEbzrPV4irk4ygEmuk3CPOHZu8xX1ei6c5LdandtM/n XVUkXsQY+STkmnGv4P3GcPoDththCr0tBTWrFWtxa0w9hYOxx0ay1AZFlgM4FFX0 QFuRc8VBLoDJpIUjbkhsIRIbrlHc/YDGjuYnAU7lV/CIME8vf2BW6uBwIZJdYcDj 0ejozLjodEnuKXQGnc8sXFioLX2gbMyQJEvwCgRvUu/EU7ncFm1lfs7THQ== =UxKM -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull KVM updates from Paolo Bonzini: "ARM: - More progress on the protected VM front, now with the full fixed feature set as well as the limitation of some hypercalls after initialisation. - Cleanup of the RAZ/WI sysreg handling, which was pointlessly complicated - Fixes for the vgic placement in the IPA space, together with a bunch of selftests - More memcg accounting of the memory allocated on behalf of a guest - Timer and vgic selftests - Workarounds for the Apple M1 broken vgic implementation - KConfig cleanups - New kvmarm.mode=none option, for those who really dislike us RISC-V: - New KVM port. x86: - New API to control TSC offset from userspace - TSC scaling for nested hypervisors on SVM - Switch masterclock protection from raw_spin_lock to seqcount - Clean up function prototypes in the page fault code and avoid repeated memslot lookups - Convey the exit reason to userspace on emulation failure - Configure time between NX page recovery iterations - Expose Predictive Store Forwarding Disable CPUID leaf - Allocate page tracking data structures lazily (if the i915 KVM-GT functionality is not compiled in) - Cleanups, fixes and optimizations for the shadow MMU code s390: - SIGP Fixes - initial preparations for lazy destroy of secure VMs - storage key improvements/fixes - Log the guest CPNC Starting from this release, KVM-PPC patches will come from Michael Ellerman's PPC tree" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (227 commits) RISC-V: KVM: fix boolreturn.cocci warnings RISC-V: KVM: remove unneeded semicolon RISC-V: KVM: Fix GPA passed to __kvm_riscv_hfence_gvma_xyz() functions RISC-V: KVM: Factor-out FP virtualization into separate sources KVM: s390: add debug statement for diag 318 CPNC data KVM: s390: pv: properly handle page flags for protected guests KVM: s390: Fix handle_sske page fault handling KVM: x86: SGX must obey the KVM_INTERNAL_ERROR_EMULATION protocol KVM: x86: On emulation failure, convey the exit reason, etc. to userspace KVM: x86: Get exit_reason as part of kvm_x86_ops.get_exit_info KVM: x86: Clarify the kvm_run.emulation_failure structure layout KVM: s390: Add a routine for setting userspace CPU state KVM: s390: Simplify SIGP Set Arch handling KVM: s390: pv: avoid stalls when making pages secure KVM: s390: pv: avoid stalls for kvm_s390_pv_init_vm KVM: s390: pv: avoid double free of sida page KVM: s390: pv: add macros for UVC CC values s390/mm: optimize reset_guest_reference_bit() s390/mm: optimize set_guest_storage_key() s390/mm: no need for pte_alloc_map_lock() if we know the pmd is present ... |
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4e33868433 |
KVM/arm64 updates for Linux 5.16
- More progress on the protected VM front, now with the full fixed feature set as well as the limitation of some hypercalls after initialisation. - Cleanup of the RAZ/WI sysreg handling, which was pointlessly complicated - Fixes for the vgic placement in the IPA space, together with a bunch of selftests - More memcg accounting of the memory allocated on behalf of a guest - Timer and vgic selftests - Workarounds for the Apple M1 broken vgic implementation - KConfig cleanups - New kvmarm.mode=none option, for those who really dislike us -----BEGIN PGP SIGNATURE----- iQJDBAABCgAtFiEEn9UcU+C1Yxj9lZw9I9DQutE9ekMFAmF7u5YPHG1hekBrZXJu ZWwub3JnAAoJECPQ0LrRPXpD6w8QAIKDLJCTqkxv5Vh4ZSmtXxg4gTZMBlg8oSQ8 sVL639aqBvFe3A6Vmz6IwBm+NT7Sm1zxkuH9qHzVR1gmXq0oLYNrIuyrzRW8PvqO hIkSRRoVsf03755TmkxwR7/2jAFxb6FhEVAy6VWdQyI44orihIPvMp8aTIq+jvU+ XoNGb/rPf9HpSUtvuaHYvZhSZBhoi5dRnkr33R1+VR69n7Axs8lm905xcl6Pt0a0 QqYZWQvFu/BXPyNflG7LUsegRF/iiV2vNTbNNowkzlV5suqxBpJAp6ApDL/gWrHv ya/6cMqicSjBIkWnawhXY98w6/5xfzK4IV/zc00FNWOlUdVP89Thqrgc8EkigS9R BGcxFFqj41snr+ensSBBIkNtV+dBX52H3rUE0F9seiTXm8QWI86JobdeNadT8tUP TXdOeCUcA+cp4Ngln18lsbOEaBkPA5H1po1nUFPHbKnVOxnqXScB7E/xF6rAbryV m+Z+oidU7MyS/Ev/Da0ww/XFx7cs2ez9EgeQvjcdFAvUMqS6kcXEExvgGYlm+KRQ GBMKPLCNHKdflMANoSpol7MZUmPJ45XoWKW1rntj2r9X+oJW2Z2hEx32xrWDJdqK ixnbjog5kNZb0CjLGsUC90lo2hpRJecaLhAjgTLYaNC1QxGPrt92eat6gnwuMTBc mpADqi7w =qBAO -----END PGP SIGNATURE----- Merge tag 'kvmarm-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 updates for Linux 5.16 - More progress on the protected VM front, now with the full fixed feature set as well as the limitation of some hypercalls after initialisation. - Cleanup of the RAZ/WI sysreg handling, which was pointlessly complicated - Fixes for the vgic placement in the IPA space, together with a bunch of selftests - More memcg accounting of the memory allocated on behalf of a guest - Timer and vgic selftests - Workarounds for the Apple M1 broken vgic implementation - KConfig cleanups - New kvmarm.mode=none option, for those who really dislike us |
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83e1ada67a |
perf powerpc: Add support to expose instruction and data address registers as part of extended regs
This patch enables presenting Sampled Instruction Address Register (SIAR) and Sampled Data Address Register (SDAR) SPRs as part of extended registers for the perf tool. Add these SPR's to sample_reg_mask in the tool side (to use with -I? option). Reviewed-by: Kajol Jain <kjain@linux.ibm.com> Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Nageswara R Sastry <rnsastry@linux.ibm.com> Cc: linuxppc-dev@lists.ozlabs.org Link: https://lore.kernel.org/r/20211018114948.16830-3-atrajeev@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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637b8b90fe |
perf powerpc: Refactor the code definition of perf reg extended mask in tools side header file
PERF_REG_PMU_MASK_300 and PERF_REG_PMU_MASK_31 defines the mask value for extended registers. Current definition of these mask values uses hex constant and does not use registers by name, making it less readable. Patch refactor the macro values in perf tools side header file by or'ing together the actual register value constants. Suggested-by: Michael Ellerman <mpe@ellerman.id.au> Reviewed-by: Kajol Jain <kjain@linux.ibm.com> Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Cc: Nageswara R Sastry <rnsastry@linux.ibm.com> Cc: linuxppc-dev@lists.ozlabs.org Link: https://lore.kernel.org/r/20211018114948.16830-2-atrajeev@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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5000653934 |
tools: arch: x86: pull in pvclock headers
Copy over approximately clean versions of the pvclock headers into tools. Reconcile headers/symbols missing in tools that are unneeded. Signed-off-by: Oliver Upton <oupton@google.com> Message-Id: <20210916181555.973085-2-oupton@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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272a067df3 |
tools: arm64: Import sysreg.h
Bring-in the kernel's arch/arm64/include/asm/sysreg.h into tools/ for arm64 to make use of all the standard register definitions in consistence with the kernel. Make use of the register read/write definitions from sysreg.h, instead of the existing definitions. A syntax correction is needed for the files that use write_sysreg() to make it compliant with the new (kernel's) syntax. Reviewed-by: Andrew Jones <drjones@redhat.com> Reviewed-by: Oliver Upton <oupton@google.com> Signed-off-by: Raghavendra Rao Ananta <rananta@google.com> [maz: squashed two commits in order to keep the series bisectable] Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20211007233439.1826892-3-rananta@google.com Link: https://lore.kernel.org/r/20211007233439.1826892-4-rananta@google.com |
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f96b467583 |
x86/insn: Use get_unaligned() instead of memcpy()
Use get_unaligned() instead of memcpy() to access potentially unaligned
memory, which, when accessed through a pointer, leads to undefined
behavior. get_unaligned() describes much better what is happening there
anyway even if memcpy() does the job.
In addition, since perf tool builds with -Werror, it would fire with:
util/intel-pt-decoder/../../../arch/x86/lib/insn.c: In function '__insn_get_emulate_prefix':
tools/include/../include/asm-generic/unaligned.h:10:15: error: packed attribute is unnecessary [-Werror=packed]
10 | const struct { type x; } __packed *__pptr = (typeof(__pptr))(ptr); \
because -Werror=packed would complain if the packed attribute would have
no effect on the layout of the structure.
In this case, that is intentional so disable the warning only for that
compilation unit.
That part is Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
No functional changes.
Fixes:
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5bb7b2107f |
A set of fixes for X86:
- Prevent sending the wrong signal when protection keys are enabled and the kernel handles a fault in the vsyscall emulation. - Invoke early_reserve_memory() before invoking e820_memory_setup() which is required to make the Xen dom0 e820 hooks work correctly. - Use the correct data type for the SETZ operand in the EMQCMDS instruction wrapper. - Prevent undefined behaviour to the potential unaligned accesss in the instroction decoder library. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmFQQaITHHRnbHhAbGlu dXRyb25peC5kZQAKCRCmGPVMDXSYoaZjD/0TF0mE8QUhI4tyGELdNgwvje5iZ9vg Nd9KJpR4hUALHgfUD44NVl9JWawFY2d8FXyIPoAFEcvmy6o4f1w0ia8US3hQWA0Y EdLSigXi/eYSstkONaJUEBCxlLbwy7JDzaazA9DeKOEuRc7NWSyZURYvzTAkPK1Y mbE9kjKhjFa5NGnSB8HbSF2yEzFsKaTo4nreWP/OkzDjnEMshLR1/FUOUvZmlsgA CWjMxAVYFqeJN3QhDgR/vRKPoz1sOjDL1s4AsU+xdy63WyFJZ7Z1b8t6bOBoYh6w UztkuOkzZ6pIdzz4O1WGoFx4/FJ74qNx0vO/hOB+cKH6rgJs6AkHAvwlnjI/fE2C Y+IsuE4PBXMRpkaayTCsAq/enabwgKsmLSUu916APrhVvuUtb3GJgyhedLE3mEBw yZXezzRDhNpYop2yQSRXDeKebpoQgl+zqEP5g1O8pAFnud8FGHnz64eJV7Su7Y7C BCac0hmv+drlqb/jOSYqjsfo6QfhvR60WwDIgTplOMMLa3plEJFx/rIuU2xVg5g9 w0m2QUsZboyT2yBnl8gRrqrcQmv2t4iX6TAj9Wm23Lx41h94JQMRtZyJT9bcNqY9 jMJu27BcNSveciZA7W2DVUlFf/gTF3bwpF7ZDWRt/VSrHPtkI9WKlERhQaywo1L0 rF8SGCEuNU2ktw== =h7v1 -----END PGP SIGNATURE----- Merge tag 'x86-urgent-2021-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Thomas Gleixner: "A set of fixes for X86: - Prevent sending the wrong signal when protection keys are enabled and the kernel handles a fault in the vsyscall emulation. - Invoke early_reserve_memory() before invoking e820_memory_setup() which is required to make the Xen dom0 e820 hooks work correctly. - Use the correct data type for the SETZ operand in the EMQCMDS instruction wrapper. - Prevent undefined behaviour to the potential unaligned accesss in the instruction decoder library" * tag 'x86-urgent-2021-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/insn, tools/x86: Fix undefined behavior due to potential unaligned accesses x86/asm: Fix SETZ size enqcmds() build failure x86/setup: Call early_reserve_memory() earlier x86/fault: Fix wrong signal when vsyscall fails with pkey |
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5ba1071f75 |
x86/insn, tools/x86: Fix undefined behavior due to potential unaligned accesses
Don't perform unaligned loads in __get_next() and __peek_nbyte_next() as these are forms of undefined behavior: "A pointer to an object or incomplete type may be converted to a pointer to a different object or incomplete type. If the resulting pointer is not correctly aligned for the pointed-to type, the behavior is undefined." (from http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1256.pdf) These problems were identified using the undefined behavior sanitizer (ubsan) with the tools version of the code and perf test. [ bp: Massage commit message. ] Signed-off-by: Numfor Mbiziwo-Tiapo <nums@google.com> Signed-off-by: Ian Rogers <irogers@google.com> Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Link: https://lkml.kernel.org/r/20210923161843.751834-1-irogers@google.com |
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2da4a23599 |
KVM: selftests: Remove __NR_userfaultfd syscall fallback
Revert the __NR_userfaultfd syscall fallback added for KVM selftests now that x86's unistd_{32,63}.h overrides are under uapi/ and thus not in KVM selftests' search path, i.e. now that KVM gets x86 syscall numbers from the installed kernel headers. No functional change intended. Reviewed-by: Ben Gardon <bgardon@google.com> Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210901203030.1292304-6-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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de5f4213da |
tools: Move x86 syscall number fallbacks to .../uapi/
Move unistd_{32,64}.h from x86/include/asm to x86/include/uapi/asm so
that tools/selftests that install kernel headers, e.g. KVM selftests, can
include non-uapi tools headers, e.g. to get 'struct list_head', without
effectively overriding the installed non-tool uapi headers.
Swapping KVM's search order, e.g. to search the kernel headers before
tool headers, is not a viable option as doing results in linux/type.h and
other core headers getting pulled from the kernel headers, which do not
have the kernel-internal typedefs that are used through tools, including
many files outside of selftests/kvm's control.
Prior to commit
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03d6f3fe54 |
tools headers UAPI: Sync x86's asm/kvm.h with the kernel sources
To pick the changes in:
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dde994dd54 |
perf report: Add tools/arch/x86/include/asm/amd-ibs.h
This is a tools/-side patch for the patch that adds the original copy of the IBS header file, in arch/x86/include/asm/. We also add an entry to check-headers.sh, so future changes continue to be copied. Committer notes: Had to add this -#include <asm/msr-index.h> +#include "msr-index.h" And change the check-headers.sh entry to ignore this line when diffing with the original kernel header. This is needed so that we can use 'perf report' on a perf.data with IBS data on a !x86 system, i.e. building on ARM fails without this as there is no asm/msr-index.h there. This was done on the next patch in this series and is done for things like Intel PT and ARM CoreSight. Signed-off-by: Kim Phillips <kim.phillips@amd.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Joao Martins <joao.m.martins@oracle.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Robert Richter <robert.richter@amd.com> Cc: Stephane Eranian <eranian@google.com> Link: https //lore.kernel.org/r/20210817221509.88391-3-kim.phillips@amd.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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376a947653 |
tools headers UAPI: Sync files changed by the memfd_secret new syscall
To pick the changes in this cset:
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f88bb1cb3e |
tools headers UAPI: Synch KVM's svm.h header with the kernel
To pick up the changes from:
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795c4ab87e |
tools kvm headers arm64: Update KVM headers from the kernel sources
To pick the changes from:
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e48f62aece |
tools headers UAPI: Sync linux/kvm.h with the kernel sources
To pick the changes in: |
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cc200a7de9 |
tools headers cpufeatures: Sync with the kernel sources
To pick the changes from: |
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04df0dc118 |
tools arch x86: Sync the msr-index.h copy with the kernel sources
To pick up the changes from these csets:
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a22c3f615a |
X86 interrupt related changes:
- Consolidate the VECTOR defines and the usage sites. - Cleanup GDT/IDT related code and replace open coded ASM with proper native helfper functions. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmDbLAUTHHRnbHhAbGlu dXRyb25peC5kZQAKCRCmGPVMDXSYoTiXEACiuisDJ2fYFqU1dmYRbWIDtWbgsJ3k CVABRjgCbGfviKaaJuMoHf5tbnXWWu7y8jd8Z+h9cwOlyQOzNBsZjplzPS0h8zME KAekAkO2VGf5G7VdWLrfMvjIY/NDuAgxj+7w01LvnyWROePGRkbeP3iH41qo+auM 5Cj4lu333+rO4kzmdXzwJ7CHQXOa/OT0MrBL14saYFaM3qSSkCzeIXnE6/ZNapsE zZYOCDF19MpPm6GZT1i4qRxirhw1TLNycsYavlOxZ/Hyp0BO0t2TiNRwZtdIVz+a 1sedm+pD9E+1qHQfB+P03P65OixxN0hArNlKgGou5LDMRF45pvfqQXEBbTsqHSxh vWlL/tK7Z7U5dsK7ZA0HvlZYdrunWn/cNMqWb08WDyuPLxJ0QxJjsdOB2teVEus+ kNYsP0ZxRvPNHKtqVfTXGS8ksrNS/57lUz6UJmBA3UYhYg33UgPCfF/gQzTnpfSo 4TzhWIeLlCOId9FPxXpXa4NjjsqXvNEOPGrTx4BY8SYHYln4HoSyffRIZQ8xl0lA Qfetod+Hajt+5JXGndb906kexY7i14ZOrkHEjkUtq0asNmbwJ+hVs2VaYcq/ghuS BmhlnarYuWw9t11yD9Ln5stoVgRJ2KEX5T9fOCtCsJZyHo+Eta/p14ocU0eLQQdh HbsRKB+pE+al2A== =eAPe -----END PGP SIGNATURE----- Merge tag 'x86-irq-2021-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 interrupt related updates from Thomas Gleixner: - Consolidate the VECTOR defines and the usage sites. - Cleanup GDT/IDT related code and replace open coded ASM with proper native helper functions. * tag 'x86-irq-2021-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/kexec: Set_[gi]dt() -> native_[gi]dt_invalidate() in machine_kexec_*.c x86: Add native_[ig]dt_invalidate() x86/idt: Remove address argument from idt_invalidate() x86/irq: Add and use NR_EXTERNAL_VECTORS and NR_SYSTEM_VECTORS x86/irq: Remove unused vectors defines |
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909489bf9f |
Changes for this cycle:
- Micro-optimize and standardize the do_syscall_64() calling convention - Make syscall entry flags clearing more conservative - Clean up syscall table handling - Clean up & standardize assembly macros, in preparation of FRED - Misc cleanups and fixes Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmDZeG8RHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1gHQw//fI9MAIVQbB6tVMH6GtFkQZIJLMt/bik5 AWelEXoBUbbLFGKpugC+oWGJjsvZ026f65hfQEswuqD4n0Xx8FFPRi51LP88lLya XQV8nssJYUKYZAVA0EJd7NmnJchbnRc4KQmu6ekEQdP6+Nht8k7U9O2QetgQgcE5 IYhXctoYpr/FnBpV5PmVNAakOt0cZh6mXAtpzjHfdU8lUHZ13zPIpniSXCPd4vUB u/a3x3l1fP+Gg8d1vpfGCBvNKRBEh5pJsjaObMlLM/qhHupsDi5Ji6y6pcJSgkcv 2nBtRGYDjYIQ0qXx6ILhNuqGFT76i/j2p8YfwMnH4NmYk908RlT0quu7fI8wBO9E cKd3m9BG8wP67xbOrG/0ckdl3+y/1iW8kPY6SeO03Vvfm6ryqHdZs4oi4CmcX9lP bFXi5AiYdHm0vqbwQG8P9LerWotgz4yFC9z7yC1KXJDXJxSwVxDFiXvyvxepRi6E NZxe4RSnDp7sijEvZJa/2EA+rDVDIokfzTLgnRSMkaUuxwNsVjeNsV0b5727kiVC DwVkxC7NZKG9UBr6WFs9hxRPE0g6xz3EJEBXaWpk2ggBmQxTfBRTjV0Pe3ii7dqQ z7O3Gv8pojki3ttG4wExLepPHRxTBzjdsoV6/BHZpraYTP11bpQlgx/K7IYJZYa5 Tt9IZ4vNd10= =mbmH -----END PGP SIGNATURE----- Merge tag 'x86-asm-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 asm updates from Ingo Molnar: - Micro-optimize and standardize the do_syscall_64() calling convention - Make syscall entry flags clearing more conservative - Clean up syscall table handling - Clean up & standardize assembly macros, in preparation of FRED - Misc cleanups and fixes * tag 'x86-asm-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/asm: Make <asm/asm.h> valid on cross-builds as well x86/regs: Syscall_get_nr() returns -1 for a non-system call x86/entry: Split PUSH_AND_CLEAR_REGS into two submacros x86/syscall: Maximize MSR_SYSCALL_MASK x86/syscall: Unconditionally prototype {ia32,x32}_sys_call_table[] x86/entry: Reverse arguments to do_syscall_64() x86/entry: Unify definitions from <asm/calling.h> and <asm/ptrace-abi.h> x86/asm: Use _ASM_BYTES() in <asm/nops.h> x86/asm: Add _ASM_BYTES() macro for a .byte ... opcode sequence x86/asm: Have the __ASM_FORM macros handle commas in arguments |
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36524112ab |
tools headers cpufeatures: Sync with the kernel sources
To pick the changes in: |
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6c1ced2f70 |
perf tools: Copy uapi/asm/perf_regs.h from the kernel for MIPS
To allow the build to complete on older systems, where those files are
either not uptodate, lacking some recent additions or not present at
all.
And check if the copy drifts from the kernel.
This commit is similar with
commit
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ff85100388 |
x86/irq: Add and use NR_EXTERNAL_VECTORS and NR_SYSTEM_VECTORS
Add defines for the number of external vectors and number of system vectors instead of requiring the use of (FIRST_SYSTEM_VECTOR - FIRST_EXTERNAL_VECTOR) and (NR_VECTORS - FIRST_SYSTEM_VECTOR) respectively. Clean up the usage sites. Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Andy Lutomirski <luto@kernel.org> Link: https://lore.kernel.org/r/20210519212154.511983-3-hpa@zytor.com |
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f1b7d45d3f |
x86/irq: Remove unused vectors defines
UV_BAU_MESSAGE is defined but not used anywhere in the kernel. Presumably this is a stale vector number that can be reclaimed. MCE_VECTOR is not an actual vector: #MC is an exception, not an interrupt vector, and as such is correctly described as X86_TRAP_MC. MCE_VECTOR is not used anywhere is the kernel. Note that NMI_VECTOR *is* used; specifically it is the vector number programmed into the APIC LVT when an NMI interrupt is configured. At the moment it is always numerically identical to X86_TRAP_NMI, that is not necessarily going to be the case indefinitely. Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Steve Wahl <steve.wahl@hpe.com> Link: https://lore.kernel.org/r/20210519212154.511983-4-hpa@zytor.com |
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3c91e8efaf |
tools arch kvm: Sync kvm headers with the kernel sources
To pick up the changes from:
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ccb013c29d |
- Enable -Wundef for the compressed kernel build stage
- Reorganize SEV code to streamline and simplify future development -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmCg1XQACgkQEsHwGGHe VUpRKA//dwzDD1QU16JucfhgFlv/9OTm48ukSwAb9lZjDEy4H1CtVL3xEHFd7L3G LJp0LTW+OQf0/0aGlQp/cP6sBF6G9Bf4mydx70Id4SyCQt8eZDodB+ZOOWbeteWq p92fJPbX8CzAglutbE+3v/MD8CCAllTiLZnJZPVj4Kux2/wF6EryDgF1+rb5q8jp ObTT9817mHVwWVUYzbgceZtd43IocOlKZRmF1qivwScMGylQTe1wfMjunpD5pVt8 Zg4UDNknNfYduqpaG546E6e1zerGNaJK7SHnsuzHRUVU5icNqtgBk061CehP9Ksq DvYXLUl4xF16j6xJAqIZPNrBkJGdQf4q1g5x2FiBm7rSQU5owzqh5rkVk4EBFFzn UtzeXpqbStbsZHXycyxBNdq2HXxkFPf2NXZ+bkripPg+DifOGots1uwvAft+6iAE GudK6qxAvr8phR1cRyy6BahGtgOStXbZYEz0ZdU6t7qFfZMz+DomD5Jimj0kAe6B s6ras5xm8q3/Py87N/KNjKtSEpgsHv/7F+idde7ODtHhpRL5HCBqhkZOSRkMMZqI ptX1oSTvBXwRKyi5x9YhkKHUFqfFSUTfJhiRFCWK+IEAv3Y7SipJtfkqxRbI6fEV FfCeueKDDdViBtseaRceVLJ8Tlr6Qjy27fkPPTqJpthqPpCdoZ0= =ENfF -----END PGP SIGNATURE----- Merge tag 'x86_urgent_for_v5.13_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Borislav Petkov: "The three SEV commits are not really urgent material. But we figured since getting them in now will avoid a huge amount of conflicts between future SEV changes touching tip, the kvm and probably other trees, sending them to you now would be best. The idea is that the tip, kvm etc branches for 5.14 will all base ontop of -rc2 and thus everything will be peachy. What is more, those changes are purely mechanical and defines movement so they should be fine to go now (famous last words). Summary: - Enable -Wundef for the compressed kernel build stage - Reorganize SEV code to streamline and simplify future development" * tag 'x86_urgent_for_v5.13_rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/boot/compressed: Enable -Wundef x86/msr: Rename MSR_K8_SYSCFG to MSR_AMD64_SYSCFG x86/sev: Move GHCB MSR protocol and NAE definitions in a common header x86/sev-es: Rename sev-es.{ch} to sev.{ch} |
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41f45fb045 |
x86/asm: Make <asm/asm.h> valid on cross-builds as well
Stephen Rothwell reported that the objtool cross-build breaks on non-x86 hosts: > tools/arch/x86/include/asm/asm.h:185:24: error: invalid register name for 'current_stack_pointer' > 185 | register unsigned long current_stack_pointer asm(_ASM_SP); > | ^~~~~~~~~~~~~~~~~~~~~ The PowerPC host obviously doesn't know much about x86 register names. Protect the kernel-specific bits of <asm/asm.h>, so that it can be included by tooling and cross-built. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Reviewed-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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6faf64f524 |
tools headers cpufeatures: Sync with the kernel sources
To pick the changes from: |
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3916329309 |
tools include UAPI powerpc: Sync errno.h with the kernel headers
To pick the change in:
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fb24e308b6 |
tools arch: Update arch/x86/lib/mem{cpy,set}_64.S copies used in 'perf bench mem memcpy'
To bring in the change made in this cset:
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b35629bc2f |
tools headers kvm: Sync kvm headers with the kernel sources
To pick the changes in:
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b3172585b1 |
tools arch x86: Sync the msr-index.h copy with the kernel sources
To pick up the changes from these csets:
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eef23e72b7 |
x86/asm: Use _ASM_BYTES() in <asm/nops.h>
Use the new generalized _ASM_BYTES() macro from <asm/asm.h> instead of the "home grown" _ASM_MK_NOP() in <asm/nops.h>. Add <asm/asm.h> and update <asm/nops.h> in the tools directory... Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20210510090940.924953-4-hpa@zytor.com |
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059e5c321a |
x86/msr: Rename MSR_K8_SYSCFG to MSR_AMD64_SYSCFG
The SYSCFG MSR continued being updated beyond the K8 family; drop the K8 name from it. Suggested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Brijesh Singh <brijesh.singh@amd.com> Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Joerg Roedel <jroedel@suse.de> Link: https://lkml.kernel.org/r/20210427111636.1207-4-brijesh.singh@amd.com |
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c6536676c7 |
- turn the stack canary into a normal __percpu variable on 32-bit which
gets rid of the LAZY_GS stuff and a lot of code. - Add an insn_decode() API which all users of the instruction decoder should preferrably use. Its goal is to keep the details of the instruction decoder away from its users and simplify and streamline how one decodes insns in the kernel. Convert its users to it. - kprobes improvements and fixes - Set the maximum DIE per package variable on Hygon - Rip out the dynamic NOP selection and simplify all the machinery around selecting NOPs. Use the simplified NOPs in objtool now too. - Add Xeon Sapphire Rapids to list of CPUs that support PPIN - Simplify the retpolines by folding the entire thing into an alternative now that objtool can handle alternatives with stack ops. Then, have objtool rewrite the call to the retpoline with the alternative which then will get patched at boot time. - Document Intel uarch per models in intel-family.h - Make Sub-NUMA Clustering topology the default and Cluster-on-Die the exception on Intel. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmCHyJQACgkQEsHwGGHe VUpjiRAAwPZdwwp08ypZuMHR4EhLNru6gYhbAoALGgtYnQjLtn5onQhIeieK+R4L cmZpxHT9OFp5dXHk4kwygaQBsD4pPOiIpm60kye1dN3cSbOORRdkwEoQMpKMZ+5Y kvVsmn7lrwRbp600KdE4G6L5+N6gEgr0r6fMFWWGK3mgVAyCzPexVHgydcp131ch iYMo6/pPDcNkcV/hboVKgx7GISdQ7L356L1MAIW/Sxtw6uD/X4qGYW+kV2OQg9+t nQDaAo7a8Jqlop5W5TQUdMLKQZ1xK8SFOSX/nTS15DZIOBQOGgXR7Xjywn1chBH/ PHLwM5s4XF6NT5VlIA8tXNZjWIZTiBdldr1kJAmdDYacrtZVs2LWSOC0ilXsd08Z EWtvcpHfHEqcuYJlcdALuXY8xDWqf6Q2F7BeadEBAxwnnBg+pAEoLXI/1UwWcmsj wpaZTCorhJpYo2pxXckVdHz2z0LldDCNOXOjjaWU8tyaOBKEK6MgAaYU7e0yyENv mVc9n5+WuvXuivC6EdZ94Pcr/KQsd09ezpJYcVfMDGv58YZrb6XIEELAJIBTu2/B Ua8QApgRgetx+1FKb8X6eGjPl0p40qjD381TADb4rgETPb1AgKaQflmrSTIik+7p O+Eo/4x/GdIi9jFk3K+j4mIznRbUX0cheTJgXoiI4zXML9Jv94w= =bm4S -----END PGP SIGNATURE----- Merge tag 'x86_core_for_v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 updates from Borislav Petkov: - Turn the stack canary into a normal __percpu variable on 32-bit which gets rid of the LAZY_GS stuff and a lot of code. - Add an insn_decode() API which all users of the instruction decoder should preferrably use. Its goal is to keep the details of the instruction decoder away from its users and simplify and streamline how one decodes insns in the kernel. Convert its users to it. - kprobes improvements and fixes - Set the maximum DIE per package variable on Hygon - Rip out the dynamic NOP selection and simplify all the machinery around selecting NOPs. Use the simplified NOPs in objtool now too. - Add Xeon Sapphire Rapids to list of CPUs that support PPIN - Simplify the retpolines by folding the entire thing into an alternative now that objtool can handle alternatives with stack ops. Then, have objtool rewrite the call to the retpoline with the alternative which then will get patched at boot time. - Document Intel uarch per models in intel-family.h - Make Sub-NUMA Clustering topology the default and Cluster-on-Die the exception on Intel. * tag 'x86_core_for_v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (53 commits) x86, sched: Treat Intel SNC topology as default, COD as exception x86/cpu: Comment Skylake server stepping too x86/cpu: Resort and comment Intel models objtool/x86: Rewrite retpoline thunk calls objtool: Skip magical retpoline .altinstr_replacement objtool: Cache instruction relocs objtool: Keep track of retpoline call sites objtool: Add elf_create_undef_symbol() objtool: Extract elf_symbol_add() objtool: Extract elf_strtab_concat() objtool: Create reloc sections implicitly objtool: Add elf_create_reloc() helper objtool: Rework the elf_rebuild_reloc_section() logic objtool: Fix static_call list generation objtool: Handle per arch retpoline naming objtool: Correctly handle retpoline thunk calls x86/retpoline: Simplify retpolines x86/alternatives: Optimize optimize_nops() x86: Add insn_decode_kernel() x86/kprobes: Move 'inline' to the beginning of the kprobe_is_ss() declaration ... |
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ea5bc7b977 |
Trivial cleanups and fixes all over the place.
-----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmCGmYIACgkQEsHwGGHe VUr45w/8CSXr7MXaFBj4To0hTWJXSZyF6YGqlZOSJXFcFh4cWTNwfVOoFaV47aDo +HsCNTkGENcKhLrDUWDRiG/Uo46jxtOtl1vhq7U4pGemSYH871XWOKfb5k5XNMwn /uhaHMI4aEfd6bUFnF518NeyRIsD0BdqFj4tB7RbAiyFwdETDX9Tkj/uBKnQ4zon 4tEDoXgThuK5YKK9zVQg5pa7aFp2zg1CAdX/WzBkS8BHVBPXSV0CF97AJYQOM/V+ lUHv+BN3wp97GYHPQMPsbkNr8IuFoe2mIvikwjxg8iOFpzEU1G1u09XV9R+PXByX LclFTRqK/2uU5hJlcsBiKfUuidyErYMRYImbMAOREt2w0ogWVu2zQ7HkjVve25h1 sQPwPudbAt6STbqRxvpmB3yoV4TCYwnF91FcWgEy+rcEK2BDsHCnScA45TsK5I1C kGR1K17pHXprgMZFPveH+LgxewB6smDv+HllxQdSG67LhMJXcs2Epz0TsN8VsXw8 dlD3lGReK+5qy9FTgO7mY0xhiXGz1IbEdAPU4eRBgih13puu03+jqgMaMabvBWKD wax+BWJUrPtetwD5fBPhlS/XdJDnd8Mkv2xsf//+wT0s4p+g++l1APYxeB8QEehm Pd7Mvxm4GvQkfE13QEVIPYQRIXCMH/e9qixtY5SHUZDBVkUyFM0= =bO1i -----END PGP SIGNATURE----- Merge tag 'x86_cleanups_for_v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull misc x86 cleanups from Borislav Petkov: "Trivial cleanups and fixes all over the place" * tag 'x86_cleanups_for_v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: MAINTAINERS: Remove me from IDE/ATAPI section x86/pat: Do not compile stubbed functions when X86_PAT is off x86/asm: Ensure asm/proto.h can be included stand-alone x86/platform/intel/quark: Fix incorrect kernel-doc comment syntax in files x86/msr: Make locally used functions static x86/cacheinfo: Remove unneeded dead-store initialization x86/process/64: Move cpu_current_top_of_stack out of TSS tools/turbostat: Unmark non-kernel-doc comment x86/syscalls: Fix -Wmissing-prototypes warnings from COND_SYSCALL() x86/fpu/math-emu: Fix function cast warning x86/msr: Fix wr/rdmsr_safe_regs_on_cpu() prototypes x86: Fix various typos in comments, take #2 x86: Remove unusual Unicode characters from comments x86/kaslr: Return boolean values from a function returning bool x86: Fix various typos in comments x86/setup: Remove unused RESERVE_BRK_ARRAY() stacktrace: Move documentation for arch_stack_walk_reliable() to header x86: Remove duplicate TSC DEADLINE MSR definitions |
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98ee795b21 |
A new kcpuid tool to dump the raw CPUID leafs of a CPU. It has the CPUID
bit definitions in a separate csv file which allows for adding support for new CPUID leafs and bits without having to update the tool. The main use case for the tool is hw enablement on preproduction x86 hw. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmCGjgsACgkQEsHwGGHe VUo7Ng//YbZgJk2RfRKLKnYbp0eZdzodyynxGZ101p81atsW7gsNeepKIwbWJ7Jb +gv34bolO8QB3wBmY5YTZgedEguiqcrNQ4DaT/DLlE0C96kY6k/+wYFAokYVlsSH ZffPymnEE9ZhWwg7sgN+oBEyxj/Fz3hY4nnjX2+qcIYg77pkt85fobQ5+pqfbbDB uemKQsaCHI5AH8R3u8PGVDR2wNvtYjofAjywFWl6qNpp+MEoeOGFVj4W6c6N+XNc Mq7Bli5Hb9jd0VrI0UhOr3em/2V3YWrlFBn+rnhmzYlpLHC9+5dvaiCugC8K5G0A U/iXPNyFjib6G1D38MDR0HfJtfgUK/xwqMZ61pQye9EspqCnMrMhnIMiS5mqNjFw JvpKHioQncIWO2MJEDVCfIvDmLjQ3Ms7VWeW8VgxPD7Vg/Gj9ZAzuMawEKi/w57C bRnWnQAlyopycIDdN/8R0saVVlWK3a1vZ5RlWM3GnuE83RUJ7Du0S28KRWP1pMy5 ac6qJUn0eVYsJzul6MGliTxU4THJpBut6vSMQnf2I3j4jSKq2Fx73MaypEEKuHck bB8EC6HgUWSfI2HIcUDAwJSaMhp/SkEKlg9OiatyTsWWJYUwilLOdBeN3By3skb9 y7hZdIwuyICiYg7T4Et0doa7IkBYJEJ+G3/wSw+IlstoMzado6g= =G/Um -----END PGP SIGNATURE----- Merge tag 'x86_misc_for_v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 tool update from Borislav Petkov: "A new kcpuid tool to dump the raw CPUID leafs of a CPU. It has the CPUID bit definitions in a separate csv file which allows for adding support for new CPUID leafs and bits without having to update the tool. The main use case for the tool is hw enablement on preproduction x86 hardware" * tag 'x86_misc_for_v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tools/x86/kcpuid: Add AMD leaf 0x8000001E tools/x86/kcpuid: Check last token too selftests/x86: Add a missing .note.GNU-stack section to thunks_32.S tools/x86/kcpuid: Add AMD Secure Encryption leaf tools/x86: Add a kcpuid tool to show raw CPU features |
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f4bf09dc3a |
ia64: tools: remove duplicate definition of ia64_mf() on ia64
The ia64_mf() macro defined in tools/arch/ia64/include/asm/barrier.h is already defined in <asm/gcc_intrin.h> on ia64 which causes libbpf failing to build: CC /usr/src/linux/tools/bpf/bpftool//libbpf/staticobjs/libbpf.o In file included from /usr/src/linux/tools/include/asm/barrier.h:24, from /usr/src/linux/tools/include/linux/ring_buffer.h:4, from libbpf.c:37: /usr/src/linux/tools/include/asm/../../arch/ia64/include/asm/barrier.h:43: error: "ia64_mf" redefined [-Werror] 43 | #define ia64_mf() asm volatile ("mf" ::: "memory") | In file included from /usr/include/ia64-linux-gnu/asm/intrinsics.h:20, from /usr/include/ia64-linux-gnu/asm/swab.h:11, from /usr/include/linux/swab.h:8, from /usr/include/linux/byteorder/little_endian.h:13, from /usr/include/ia64-linux-gnu/asm/byteorder.h:5, from /usr/src/linux/tools/include/uapi/linux/perf_event.h:20, from libbpf.c:36: /usr/include/ia64-linux-gnu/asm/gcc_intrin.h:382: note: this is the location of the previous definition 382 | #define ia64_mf() __asm__ volatile ("mf" ::: "memory") | cc1: all warnings being treated as errors Thus, remove the definition from tools/arch/ia64/include/asm/barrier.h. Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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b1f480bc06 |
Merge branch 'x86/cpu' into WIP.x86/core, to merge the NOP changes & resolve a semantic conflict
Conflict-merge this main commit in essence: |
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52fa82c21f |
x86: Add insn_decode_kernel()
Add a helper to decode kernel instructions; there's no point in endlessly repeating those last two arguments. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20210326151259.379242587@infradead.org |
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14ff3ed86e |
Linux 5.12-rc3
-----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAmBOgu4eHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGUd0H/3Ey8aWjVAig9Pe+ VQVZKwG+LXWH6UmUx5qyaTxophhmGnWLvkigJMn63qIg4eQtfp2gNFHK+T4OJNIP ybnkjFZ337x4J9zD6m8mt4Wmelq9iW2wNOS+3YZAyYiGlXfMGM7SlYRCQRQznTED 2O/JCMsOoP+Z8tr5ah/bzs0dANsXmTZ3QqRP2uzb6irKTgFR3/weOhj+Ht1oJ4Aq V+bgdcwhtk20hJhlvVeqws+o74LR789tTDCknlz/YNMv9e6VPfyIQ5vJAcFmZATE Ezj9yzkZ4IU+Ux6ikAyaFyBU8d1a4Wqye3eHCZBsEo6tcSAhbTZ90eoU86vh6ajS LZjwkNw= =6y1u -----END PGP SIGNATURE----- Merge tag 'v5.12-rc3' into x86/cleanups, to refresh the tree Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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f281854fa7 |
tools/x86/kcpuid: Add AMD leaf 0x8000001E
Contains core IDs, node IDs and other topology info. Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Feng Tang <feng.tang@intel.com> Link: https://lkml.kernel.org/r/20210315125901.30315-2-bp@alien8.de |
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e20f67026b |
tools/x86/kcpuid: Check last token too
Input lines like 0x8000001E, 0, EAX, 31:0, Extended APIC ID where the short name is missing lead to a segfault because the loop takes the long name for the short name and tokens[5] becomes NULL which explodes later in strcpy(). Check its value too before further processing. Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Feng Tang <feng.tang@intel.com> Link: https://lkml.kernel.org/r/20210315125901.30315-1-bp@alien8.de |
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0705ef64d1 |
tools/insn: Restore the relative include paths for cross building
Building perf on ppc causes:
In file included from util/intel-pt-decoder/intel-pt-insn-decoder.c:15:
util/intel-pt-decoder/../../../arch/x86/lib/insn.c:14:10: fatal error: asm/inat.h: No such file or directory
14 | #include <asm/inat.h> /*__ignore_sync_check__ */
| ^~~~~~~~~~~~
Restore the relative include paths so that the compiler can find the
headers.
Fixes:
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301cddc21a |
objtool/x86: Use asm/nops.h
Since the kernel will rely on a single canonical set of NOPs, make sure objtool uses the exact same ones. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20210312115749.136357911@infradead.org |
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2d4177c01b |
tools/x86/kcpuid: Add AMD Secure Encryption leaf
Add the 0x8000001f leaf's fields. Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Feng Tang <feng.tang@intel.com> Link: https://lkml.kernel.org/r/20210313140118.17010-1-bp@alien8.de |
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f935178b5c |
x86/insn: Make insn_complete() static
... and move it above the only place it is used. Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20210304174237.31945-22-bp@alien8.de |
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404b639e51 |
x86/insn: Remove kernel_insn_init()
Now that it is not needed anymore, drop it. Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20210304174237.31945-21-bp@alien8.de |
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93281c4a96 |
x86/insn: Add an insn_decode() API
Users of the instruction decoder should use this to decode instruction bytes. For that, have insn*() helpers return an int value to denote success/failure. When there's an error fetching the next insn byte and the insn falls short, return -ENODATA to denote that. While at it, make insn_get_opcode() more stricter as to whether what has seen so far is a valid insn and if not. Copy linux/kconfig.h for the tools-version of the decoder so that it can use IS_ENABLED(). Also, cast the INSN_MODE_KERN dummy define value to (enum insn_mode) for tools use of the decoder because perf tool builds with -Werror and errors out with -Werror=sign-compare otherwise. Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Link: https://lkml.kernel.org/r/20210304174237.31945-5-bp@alien8.de |
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d30c7b820b |
x86/insn: Add a __ignore_sync_check__ marker
Add an explicit __ignore_sync_check__ marker which will be used to mark lines which are supposed to be ignored by file synchronization check scripts, its advantage being that it explicitly denotes such lines in the code. Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org> Link: https://lkml.kernel.org/r/20210304174237.31945-4-bp@alien8.de |
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508ef28674 |
x86/insn: Add @buf_len param to insn_init() kernel-doc comment
It wasn't documented so add it. No functional changes. Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Link: https://lkml.kernel.org/r/20210304174237.31945-3-bp@alien8.de |
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c6b2f240bf |
tools/x86: Add a kcpuid tool to show raw CPU features
End users frequently want to know what features their processor supports, independent of what the kernel supports. /proc/cpuinfo is great. It is omnipresent and since it is provided by the kernel it is always as up to date as the kernel. But, it could be ambiguous about processor features which can be disabled by the kernel at boot-time or compile-time. There are some user space tools showing more raw features, but they are not bound with kernel, and go with distros. Many end users are still using old distros with new kernels (upgraded by themselves), and may not upgrade the distros only to get a newer tool. So here arise the need for a new tool, which * shows raw CPU features read from the CPUID instruction * will be easier to update compared to existing userspace tooling (perhaps distributed like perf) * inherits "modern" kernel development process, in contrast to some of the existing userspace CPUID tools which are still being developed without git and distributed in tarballs from non-https sites. * Can produce output consistent with /proc/cpuinfo to make comparison easier. The CPUID leaf definitions are kept in an .csv file which allows for updating only that file to add support for new feature leafs. This is based on prototype code from Borislav Petkov (http://sr71.net/~dave/intel/stupid-cpuid.c). [ bp: - Massage, add #define _GNU_SOURCE to fix implicit declaration of function ‘strcasestr' warning - remove superfluous newlines - fallback to cpuid.csv in the current dir if none found - fix typos - move comments over the lines instead of sideways. ] Originally-from: Borislav Petkov <bp@alien8.de> Suggested-by: Dave Hansen <dave.hansen@intel.com> Suggested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Feng Tang <feng.tang@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/1614928878-86075-1-git-send-email-feng.tang@intel.com |
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09141ec0e4 |
x86: Remove duplicate TSC DEADLINE MSR definitions
There are two definitions for the TSC deadline MSR in msr-index.h, one with an underscore and one without. Axe one of them and move all the references over to the other one. [ bp: Fixup the MSR define in handle_fastpath_set_msr_irqoff() too. ] Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20200305174706.0D6B8EE4@viggo.jf.intel.com |
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33dc525f93 |
tools headers UAPI: Sync KVM's kvm.h and vmx.h headers with the kernel sources
To pick the changes in:
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1a9bcadd00 |
tools headers cpufeatures: Sync with the kernel sources
To pick the changes from: |
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303550a447 |
tools headers UAPI s390: Sync ptrace.h kernel headers
To pick up the changes from:
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a56ff24efb |
objtool updates:
- Make objtool work for big-endian cross compiles - Make stack tracking via stack pointer memory operations match push/pop semantics to prepare for architectures w/o PUSH/POP instructions. - Add support for analyzing alternatives - Improve retpoline detection and handling - Improve assembly code coverage on x86 - Provide support for inlined stack switching -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmA1FUcTHHRnbHhAbGlu dXRyb25peC5kZQAKCRCmGPVMDXSYoe+0D/9ytW3AfQUOGlVHVPTwCAd2LSCL2kQR zrUAyUEwEXDuZi2vOcmgndr9AToszdBnAlxSOStJYE1/ia/ptbYjj9eFOWkCwPw2 R0DSjTHh+Ui2yPjcbYvOcMphc7DTT1ssMvRWzw0I3fjfJaYBJjNx1qdseN2yhFrL BNhdh4B4StEfCbNBMhnzKTZNM1yXNN93ojot9suxnqPIAV6ruc5SUrd9Pmii2odX gRHQthGSPMR9nJYWrT2QzbDrM2DWkKIGUol0Xr1LTFYWNFsK3sTQkFiMevTP5Msw qO01lw4IKCMKMonaE0t/vxFBz5vhIyivxLQMI3LBixmf2dbE9UbZqW0ONPYoZJgf MrYyz4Tdv2u/MklTPM263cbTsdtmGEuW2iVRqaDDWP/Py1A187bUaVkw8p/9O/9V CBl8dMF3ag1FquxnsyHDowHKu8DaIZyeBHu69aNfAlcOrtn8ZtY4MwQbQkL9cNYe ywLEmCm8zdYNrXlVOuMX/0AAWnSpqCgDYUmKhOLW4W1r4ewNpAUCmvIL8cpLtko0 FDbMTdKU2pd5SQv5YX6Bvvra483DvP9rNAuQGHpxZ7ubSlj8cFOT9UmjuuOb4fxQ EFj8JrF9KEN5sxGUu4tjg0D0Ee3wDdSTGs0cUN5FBMXelQOM7U4n4Y7n/Pas/LMa B5TVW3JiDcMcPg== =0AHf -----END PGP SIGNATURE----- Merge tag 'objtool-core-2021-02-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull objtool updates from Thomas Gleixner: - Make objtool work for big-endian cross compiles - Make stack tracking via stack pointer memory operations match push/pop semantics to prepare for architectures w/o PUSH/POP instructions. - Add support for analyzing alternatives - Improve retpoline detection and handling - Improve assembly code coverage on x86 - Provide support for inlined stack switching * tag 'objtool-core-2021-02-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits) objtool: Support stack-swizzle objtool,x86: Additionally decode: mov %rsp, (%reg) x86/unwind/orc: Change REG_SP_INDIRECT x86/power: Support objtool validation in hibernate_asm_64.S x86/power: Move restore_registers() to top of the file x86/power: Annotate indirect branches as safe x86/acpi: Support objtool validation in wakeup_64.S x86/acpi: Annotate indirect branch as safe x86/ftrace: Support objtool vmlinux.o validation in ftrace_64.S x86/xen/pvh: Annotate indirect branch as safe x86/xen: Support objtool vmlinux.o validation in xen-head.S x86/xen: Support objtool validation in xen-asm.S objtool: Add xen_start_kernel() to noreturn list objtool: Combine UNWIND_HINT_RET_OFFSET and UNWIND_HINT_FUNC objtool: Add asm version of STACK_FRAME_NON_STANDARD objtool: Assume only ELF functions do sibling calls x86/ftrace: Add UNWIND_HINT_FUNC annotation for ftrace_stub objtool: Support retpoline jump detection for vmlinux.o objtool: Fix ".cold" section suffix check for newer versions of GCC objtool: Fix retpoline detection in asm code ... |
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3a36281a17 |
New features:
- Support instruction latency in 'perf report', with both memory latency (weight) and instruction latency information, users can locate expensive load instructions and understand time spent in different stages. - Extend 'perf c2c' to display the number of loads which were blocked by data or address conflict. - Add 'perf stat' support for L2 topdown events in systems such as Intel's Sapphire rapids server. - Add support for PERF_SAMPLE_CODE_PAGE_SIZE in various tools, as a sort key, for instance: perf report --stdio --sort=comm,symbol,code_page_size - New 'perf daemon' command to run long running sessions while providing a way to control the enablement of events without restarting a traditional 'perf record' session. - Enable counting events for BPF programs in 'perf stat' just like for other targets (tid, cgroup, cpu, etc), e.g.: # perf stat -e ref-cycles,cycles -b 254 -I 1000 1.487903822 115,200 ref-cycles 1.487903822 86,012 cycles 2.489147029 80,560 ref-cycles 2.489147029 73,784 cycles ^C# The example above counts 'cycles' and 'ref-cycles' of BPF program of id 254. It is similar to bpftool-prog-profile command, but more flexible. - Support the new layout for PERF_RECORD_MMAP2 to carry the DSO build-id using infrastructure generalised from the eBPF subsystem, removing the need for traversing the perf.data file to collect build-ids at the end of 'perf record' sessions and helping with long running sessions where binaries can get replaced in updates, leading to possible mis-resolution of symbols. - Support filtering by hex address in 'perf script'. - Support DSO filter in 'perf script', like in other perf tools. - Add namespaces support to 'perf inject' - Add support for SDT (Dtrace Style Markers) events on ARM64. perf record: - Fix handling of eventfd() when draining a buffer in 'perf record'. - Improvements to the generation of metadata events for pre-existing threads (mmaps, comm, etc), speeding up the work done at the start of system wide or per CPU 'perf record' sessions. Hardware tracing: - Initial support for tracing KVM with Intel PT. - Intel PT fixes for IPC - Support Intel PT PSB (synchronization packets) events. - Automatically group aux-output events to overcome --filter syntax. - Enable PERF_SAMPLE_DATA_SRC on ARMs SPE. - Update ARM's CoreSight hardware tracing OpenCSD library to v1.0.0. perf annotate TUI: - Fix handling of 'k' ("show line number") hotkey - Fix jump parsing for C++ code. perf probe: - Add protection to avoid endless loop. cgroups: - Avoid reading cgroup mountpoint multiple times, caching it. - Fix handling of cgroup v1/v2 in mixed hierarchy. Symbol resolving: - Add OCaml symbol demangling. - Further fixes for handling PE executables when using perf with Wine and .exe/.dll files. - Fix 'perf unwind' DSO handling. - Resolve symbols against debug file first, to deal with artifacts related to LTO. - Fix gap between kernel end and module start on powerpc. Reporting tools: - The DSO filter shouldn't show samples in unresolved maps. - Improve debuginfod support in various tools. build ids: - Fix 16-byte build ids in 'perf buildid-cache', add a 'perf test' entry for that case. perf test: - Support for PERF_SAMPLE_WEIGHT_STRUCT. - Add test case for PERF_SAMPLE_CODE_PAGE_SIZE. - Shell based tests for 'perf daemon's commands ('start', 'stop, 'reconfig', 'list', etc). - ARM cs-etm 'perf test' fixes. - Add parse-metric memory bandwidth testcase. Compiler related: - Fix 'perf probe' kretprobe issue caused by gcc 11 bug when used with -fpatchable-function-entry. - Fix ARM64 build with gcc 11's -Wformat-overflow. - Fix unaligned access in sample parsing test. - Fix printf conversion specifier for IP addresses on arm64, s390 and powerpc. Arch specific: - Support exposing Performance Monitor Counter SPRs as part of extended regs on powerpc. - Add JSON 'perf stat' metrics for ARM64's imx8mp, imx8mq and imx8mn DDR, fix imx8mm ones. - Fix common and uarch events for ARM64's A76 and Ampere eMag Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQR2GiIUctdOfX2qHhGyPKLppCJ+JwUCYDANTQAKCRCyPKLppCJ+ J4veAQCISY1BPHscUTRYhq9cwU/Zs0ImtX7zDT4jxaP39JkduAD/eSqYavAJrtQh HDyEiTgZ7CQSp5eCbXkzrnet4n3G9QE= =H/Jk -----END PGP SIGNATURE----- Merge tag 'perf-tools-for-v5.12-2020-02-19' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux Pull perf tool updates from Arnaldo Carvalho de Melo: "New features: - Support instruction latency in 'perf report', with both memory latency (weight) and instruction latency information, users can locate expensive load instructions and understand time spent in different stages. - Extend 'perf c2c' to display the number of loads which were blocked by data or address conflict. - Add 'perf stat' support for L2 topdown events in systems such as Intel's Sapphire rapids server. - Add support for PERF_SAMPLE_CODE_PAGE_SIZE in various tools, as a sort key, for instance: perf report --stdio --sort=comm,symbol,code_page_size - New 'perf daemon' command to run long running sessions while providing a way to control the enablement of events without restarting a traditional 'perf record' session. - Enable counting events for BPF programs in 'perf stat' just like for other targets (tid, cgroup, cpu, etc), e.g.: # perf stat -e ref-cycles,cycles -b 254 -I 1000 1.487903822 115,200 ref-cycles 1.487903822 86,012 cycles 2.489147029 80,560 ref-cycles 2.489147029 73,784 cycles ^C The example above counts 'cycles' and 'ref-cycles' of BPF program of id 254. It is similar to bpftool-prog-profile command, but more flexible. - Support the new layout for PERF_RECORD_MMAP2 to carry the DSO build-id using infrastructure generalised from the eBPF subsystem, removing the need for traversing the perf.data file to collect build-ids at the end of 'perf record' sessions and helping with long running sessions where binaries can get replaced in updates, leading to possible mis-resolution of symbols. - Support filtering by hex address in 'perf script'. - Support DSO filter in 'perf script', like in other perf tools. - Add namespaces support to 'perf inject' - Add support for SDT (Dtrace Style Markers) events on ARM64. perf record: - Fix handling of eventfd() when draining a buffer in 'perf record'. - Improvements to the generation of metadata events for pre-existing threads (mmaps, comm, etc), speeding up the work done at the start of system wide or per CPU 'perf record' sessions. Hardware tracing: - Initial support for tracing KVM with Intel PT. - Intel PT fixes for IPC - Support Intel PT PSB (synchronization packets) events. - Automatically group aux-output events to overcome --filter syntax. - Enable PERF_SAMPLE_DATA_SRC on ARMs SPE. - Update ARM's CoreSight hardware tracing OpenCSD library to v1.0.0. perf annotate TUI: - Fix handling of 'k' ("show line number") hotkey - Fix jump parsing for C++ code. perf probe: - Add protection to avoid endless loop. cgroups: - Avoid reading cgroup mountpoint multiple times, caching it. - Fix handling of cgroup v1/v2 in mixed hierarchy. Symbol resolving: - Add OCaml symbol demangling. - Further fixes for handling PE executables when using perf with Wine and .exe/.dll files. - Fix 'perf unwind' DSO handling. - Resolve symbols against debug file first, to deal with artifacts related to LTO. - Fix gap between kernel end and module start on powerpc. Reporting tools: - The DSO filter shouldn't show samples in unresolved maps. - Improve debuginfod support in various tools. build ids: - Fix 16-byte build ids in 'perf buildid-cache', add a 'perf test' entry for that case. perf test: - Support for PERF_SAMPLE_WEIGHT_STRUCT. - Add test case for PERF_SAMPLE_CODE_PAGE_SIZE. - Shell based tests for 'perf daemon's commands ('start', 'stop, 'reconfig', 'list', etc). - ARM cs-etm 'perf test' fixes. - Add parse-metric memory bandwidth testcase. Compiler related: - Fix 'perf probe' kretprobe issue caused by gcc 11 bug when used with -fpatchable-function-entry. - Fix ARM64 build with gcc 11's -Wformat-overflow. - Fix unaligned access in sample parsing test. - Fix printf conversion specifier for IP addresses on arm64, s390 and powerpc. Arch specific: - Support exposing Performance Monitor Counter SPRs as part of extended regs on powerpc. - Add JSON 'perf stat' metrics for ARM64's imx8mp, imx8mq and imx8mn DDR, fix imx8mm ones. - Fix common and uarch events for ARM64's A76 and Ampere eMag" * tag 'perf-tools-for-v5.12-2020-02-19' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (148 commits) perf buildid-cache: Don't skip 16-byte build-ids perf buildid-cache: Add test for 16-byte build-id perf symbol: Remove redundant libbfd checks perf test: Output the sub testing result in cs-etm perf test: Suppress logs in cs-etm testing perf tools: Fix arm64 build error with gcc-11 perf intel-pt: Add documentation for tracing virtual machines perf intel-pt: Split VM-Entry and VM-Exit branches perf intel-pt: Adjust sample flags for VM-Exit perf intel-pt: Allow for a guest kernel address filter perf intel-pt: Support decoding of guest kernel perf machine: Factor out machine__idle_thread() perf machine: Factor out machines__find_guest() perf intel-pt: Amend decoder to track the NR flag perf intel-pt: Retain the last PIP packet payload as is perf intel_pt: Add vmlaunch and vmresume as branches perf script: Add branch types for VM-Entry and VM-Exit perf auxtrace: Automatically group aux-output events perf test: Fix unaligned access in sample parsing test perf tools: Support arch specific PERF_SAMPLE_WEIGHT_STRUCT processing ... |
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3e10585335 |
x86:
- Support for userspace to emulate Xen hypercalls - Raise the maximum number of user memslots - Scalability improvements for the new MMU. Instead of the complex "fast page fault" logic that is used in mmu.c, tdp_mmu.c uses an rwlock so that page faults are concurrent, but the code that can run against page faults is limited. Right now only page faults take the lock for reading; in the future this will be extended to some cases of page table destruction. I hope to switch the default MMU around 5.12-rc3 (some testing was delayed due to Chinese New Year). - Cleanups for MAXPHYADDR checks - Use static calls for vendor-specific callbacks - On AMD, use VMLOAD/VMSAVE to save and restore host state - Stop using deprecated jump label APIs - Workaround for AMD erratum that made nested virtualization unreliable - Support for LBR emulation in the guest - Support for communicating bus lock vmexits to userspace - Add support for SEV attestation command - Miscellaneous cleanups PPC: - Support for second data watchpoint on POWER10 - Remove some complex workarounds for buggy early versions of POWER9 - Guest entry/exit fixes ARM64 - Make the nVHE EL2 object relocatable - Cleanups for concurrent translation faults hitting the same page - Support for the standard TRNG hypervisor call - A bunch of small PMU/Debug fixes - Simplification of the early init hypercall handling Non-KVM changes (with acks): - Detection of contended rwlocks (implemented only for qrwlocks, because KVM only needs it for x86) - Allow __DISABLE_EXPORTS from assembly code - Provide a saner follow_pfn replacements for modules -----BEGIN PGP SIGNATURE----- iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmApSRgUHHBib256aW5p QHJlZGhhdC5jb20ACgkQv/vSX3jHroOc7wf9FnlinKoTFaSk7oeuuhF/CoCVwSFs Z9+A2sNI99tWHQxFR6dyDkEFeQoXnqSxfLHtUVIdH/JnTg0FkEvFz3NK+0PzY1PF PnGNbSoyhP58mSBG4gbBAxdF3ZJZMB8GBgYPeR62PvMX2dYbcHqVBNhlf6W4MQK4 5mAUuAnbf19O5N267sND+sIg3wwJYwOZpRZB7PlwvfKAGKf18gdBz5dQ/6Ej+apf P7GODZITjqM5Iho7SDm/sYJlZprFZT81KqffwJQHWFMEcxFgwzrnYPx7J3gFwRTR eeh9E61eCBDyCTPpHROLuNTVBqrAioCqXLdKOtO5gKvZI3zmomvAsZ8uXQ== =uFZU -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull KVM updates from Paolo Bonzini: "x86: - Support for userspace to emulate Xen hypercalls - Raise the maximum number of user memslots - Scalability improvements for the new MMU. Instead of the complex "fast page fault" logic that is used in mmu.c, tdp_mmu.c uses an rwlock so that page faults are concurrent, but the code that can run against page faults is limited. Right now only page faults take the lock for reading; in the future this will be extended to some cases of page table destruction. I hope to switch the default MMU around 5.12-rc3 (some testing was delayed due to Chinese New Year). - Cleanups for MAXPHYADDR checks - Use static calls for vendor-specific callbacks - On AMD, use VMLOAD/VMSAVE to save and restore host state - Stop using deprecated jump label APIs - Workaround for AMD erratum that made nested virtualization unreliable - Support for LBR emulation in the guest - Support for communicating bus lock vmexits to userspace - Add support for SEV attestation command - Miscellaneous cleanups PPC: - Support for second data watchpoint on POWER10 - Remove some complex workarounds for buggy early versions of POWER9 - Guest entry/exit fixes ARM64: - Make the nVHE EL2 object relocatable - Cleanups for concurrent translation faults hitting the same page - Support for the standard TRNG hypervisor call - A bunch of small PMU/Debug fixes - Simplification of the early init hypercall handling Non-KVM changes (with acks): - Detection of contended rwlocks (implemented only for qrwlocks, because KVM only needs it for x86) - Allow __DISABLE_EXPORTS from assembly code - Provide a saner follow_pfn replacements for modules" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (192 commits) KVM: x86/xen: Explicitly pad struct compat_vcpu_info to 64 bytes KVM: selftests: Don't bother mapping GVA for Xen shinfo test KVM: selftests: Fix hex vs. decimal snafu in Xen test KVM: selftests: Fix size of memslots created by Xen tests KVM: selftests: Ignore recently added Xen tests' build output KVM: selftests: Add missing header file needed by xAPIC IPI tests KVM: selftests: Add operand to vmsave/vmload/vmrun in svm.c KVM: SVM: Make symbol 'svm_gp_erratum_intercept' static locking/arch: Move qrwlock.h include after qspinlock.h KVM: PPC: Book3S HV: Fix host radix SLB optimisation with hash guests KVM: PPC: Book3S HV: Ensure radix guest has no SLB entries KVM: PPC: Don't always report hash MMU capability for P9 < DD2.2 KVM: PPC: Book3S HV: Save and restore FSCR in the P9 path KVM: PPC: remove unneeded semicolon KVM: PPC: Book3S HV: Use POWER9 SLBIA IH=6 variant to clear SLB KVM: PPC: Book3S HV: No need to clear radix host SLB before loading HPT guest KVM: PPC: Book3S HV: Fix radix guest SLB side channel KVM: PPC: Book3S HV: Remove support for running HPT guest on RPT host without mixed mode support KVM: PPC: Book3S HV: Introduce new capability for 2nd DAWR KVM: PPC: Book3S HV: Add infrastructure to support 2nd DAWR ... |
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bd1de1a0e6 |
KVM: PPC: Book3S HV: Add infrastructure to support 2nd DAWR
KVM code assumes single DAWR everywhere. Add code to support 2nd DAWR. DAWR is a hypervisor resource and thus H_SET_MODE hcall is used to set/ unset it. Introduce new case H_SET_MODE_RESOURCE_SET_DAWR1 for 2nd DAWR. Also, KVM will support 2nd DAWR only if CPU_FTR_DAWR1 is set. Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Signed-off-by: Paul Mackerras <paulus@ozlabs.org> |
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068aeea377 |
perf powerpc: Support exposing Performance Monitor Counter SPRs as part of extended regs
To enable presenting of Performance Monitor Counter Registers (PMC1 to PMC6) as part of extended regsiters, this patch adds these to sample_reg_mask in the tool side (to use with -I? option). Simplified the PERF_REG_PMU_MASK_300/31 definition. Excluded the unsupported SPRs (MMCR3, SIER2, SIER3) from extended mask value for CPU_FTR_ARCH_300. Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Madhavan Srinivasan <maddy@linux.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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fb35d30fe5 |
x86/cpufeatures: Assign dedicated feature word for CPUID_0x8000001F[EAX]
Collect the scattered SME/SEV related feature flags into a dedicated word. There are now five recognized features in CPUID.0x8000001F.EAX, with at least one more on the horizon (SEV-SNP). Using a dedicated word allows KVM to use its automagic CPUID adjustment logic when reporting the set of supported features to userspace. No functional change intended. Signed-off-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Brijesh Singh <brijesh.singh@amd.com> Link: https://lkml.kernel.org/r/20210122204047.2860075-2-seanjc@google.com |
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5ed934e57e |
x86/insn: Fix vector instruction decoding on big endian cross-compiles
Running instruction decoder posttest on an s390 host with an x86 target with allyesconfig shows errors. Instructions used in a couple of kernel objects could not be correctly decoded on big endian system. insn_decoder_test: warning: objdump says 6 bytes, but insn_get_length() says 5 insn_decoder_test: warning: Found an x86 instruction decoder bug, please report this. insn_decoder_test: warning: ffffffff831eb4e1: 62 d1 fd 48 7f 04 24 vmovdqa64 %zmm0,(%r12) insn_decoder_test: warning: objdump says 7 bytes, but insn_get_length() says 6 insn_decoder_test: warning: Found an x86 instruction decoder bug, please report this. insn_decoder_test: warning: ffffffff831eb4e8: 62 51 fd 48 7f 44 24 01 vmovdqa64 %zmm8,0x40(%r12) insn_decoder_test: warning: objdump says 8 bytes, but insn_get_length() says 6 This is because in a few places instruction field bytes are set directly with further usage of "value". To address that introduce and use a insn_set_byte() helper, which correctly updates "value" on big endian systems. Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> |
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8bfe273238 |
objtool: Fix x86 orc generation on big endian cross-compiles
Correct objtool orc generation endianness problems to enable fully functional x86 cross-compiles on big endian hardware. Introduce bswap_if_needed() macro, which does a byte swap if target endianness doesn't match the host, i.e. cross-compilation for little endian on big endian and vice versa. The macro is used for conversion of multi-byte values which are read from / about to be written to a target native endianness ELF file. Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> |
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1d509f2a6e |
x86/insn: Support big endian cross-compiles
The x86 instruction decoder code is shared across the kernel source and the tools. Currently objtool seems to be the only tool from build tools needed which breaks x86 cross-compilation on big endian systems. Make the x86 instruction decoder build host endianness agnostic to support x86 cross-compilation and enable objtool to implement endianness awareness for big endian architectures support. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Co-developed-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> |
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b71df82d05 |
tools headers UAPI: Synch KVM's svm.h header with the kernel
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9880e71cba |
tools kvm headers: Update KVM headers from the kernel sources
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cd97448db8 |
tools headers UAPI: Sync KVM's vmx.h header with the kernel sources
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288807fc3a |
tools headers UAPI: Sync kvm.h headers with the kernel sources
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fde668244d |
tools arch x86: Sync the msr-index.h copy with the kernel sources
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Fixes:
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7f3905f00a |
tools headers cpufeatures: Sync with the kernel sources
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f93c789a3e |
tools headers cpufeatures: Sync with the kernel sources
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e9bde94f1e |
tools arch x86: Sync the msr-index.h copy with the kernel sources
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4e9a5ae8df |
x86/uprobes: Do not use prefixes.nbytes when looping over prefixes.bytes
Since insn.prefixes.nbytes can be bigger than the size of
insn.prefixes.bytes[] when a prefix is repeated, the proper check must
be
insn.prefixes.bytes[i] != 0 and i < 4
instead of using insn.prefixes.nbytes.
Introduce a for_each_insn_prefix() macro for this purpose. Debugged by
Kees Cook <keescook@chromium.org>.
[ bp: Massage commit message, sync with the respective header in tools/
and drop "we". ]
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db1a8b97a0 |
tools arch: Update arch/x86/lib/mem{cpy,set}_64.S copies used in 'perf bench mem memcpy'
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aa04899a13 |
tools kvm headers: Update KVM headers from the kernel sources
Some should cause changes in tooling, like the one adding LAST_EXCP, but the way it is structured end up not making that happen. The new SVM_EXIT_INVPCID should get used by arch/x86/util/kvm-stat.c, in the svm_exit_reasons table. The tools/perf/trace/beauty part has scripts to catch changes and automagically create tables, like tools/perf/trace/beauty/kvm_ioctl.sh, but changes are needed to make tools/perf/arch/x86/util/kvm-stat.c catch those automatically. These were handled by the existing scripts: $ tools/perf/trace/beauty/kvm_ioctl.sh > before $ cp include/uapi/linux/kvm.h tools/include/uapi/linux/kvm.h $ tools/perf/trace/beauty/kvm_ioctl.sh > after $ diff -u before after --- before 2020-11-03 08:43:52.910728608 -0300 +++ after 2020-11-03 08:44:04.273959984 -0300 @@ -89,6 +89,7 @@ [0xbf] = "SET_NESTED_STATE", [0xc0] = "CLEAR_DIRTY_LOG", [0xc1] = "GET_SUPPORTED_HV_CPUID", + [0xc6] = "X86_SET_MSR_FILTER", [0xe0] = "CREATE_DEVICE", [0xe1] = "SET_DEVICE_ATTR", [0xe2] = "GET_DEVICE_ATTR", $ $ tools/perf/trace/beauty/vhost_virtio_ioctl.sh > before $ cp include/uapi/linux/vhost.h tools/include/uapi/linux/vhost.h $ $ tools/perf/trace/beauty/vhost_virtio_ioctl.sh > after $ diff -u before after --- before 2020-11-03 08:45:55.522225198 -0300 +++ after 2020-11-03 08:46:12.881578666 -0300 @@ -37,4 +37,5 @@ [0x71] = "VDPA_GET_STATUS", [0x73] = "VDPA_GET_CONFIG", [0x76] = "VDPA_GET_VRING_NUM", + [0x78] = "VDPA_GET_IOVA_RANGE", }; $ This addresses these perf build warnings: Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h' diff -u tools/arch/arm64/include/uapi/asm/kvm.h arch/arm64/include/uapi/asm/kvm.h Warning: Kernel ABI header at 'tools/arch/s390/include/uapi/asm/sie.h' differs from latest version at 'arch/s390/include/uapi/asm/sie.h' diff -u tools/arch/s390/include/uapi/asm/sie.h arch/s390/include/uapi/asm/sie.h Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/kvm.h' differs from latest version at 'arch/x86/include/uapi/asm/kvm.h' diff -u tools/arch/x86/include/uapi/asm/kvm.h arch/x86/include/uapi/asm/kvm.h Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/svm.h' differs from latest version at 'arch/x86/include/uapi/asm/svm.h' diff -u tools/arch/x86/include/uapi/asm/svm.h arch/x86/include/uapi/asm/svm.h Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Warning: Kernel ABI header at 'tools/include/uapi/linux/vhost.h' differs from latest version at 'include/uapi/linux/vhost.h' diff -u tools/include/uapi/linux/vhost.h include/uapi/linux/vhost.h Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Yarygin <yarygin@linux.vnet.ibm.com> Cc: Borislav Petkov <bp@suse.de> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Joerg Roedel <jroedel@suse.de> Cc: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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32b734e09e |
tools arch x86: Sync the msr-index.h copy with the kernel sources
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8b2fc25a94 |
tools x86 headers: Update required-features.h header from the kernel
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40a6bbf514 |
tools x86 headers: Update cpufeatures.h headers copies
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4a770b413f |
parisc: Add MAP_UNINITIALIZED define
We will not allow unitialized anon mmaps, but we need this define to prevent build errors, e.g. the debian foot package. Suggested-by: John David Anglin <dave.anglin@bell.net> Signed-off-by: Helge Deller <deller@gmx.de> |
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da9803dfd3 |
This feature enhances the current guest memory encryption support
called SEV by also encrypting the guest register state, making the registers inaccessible to the hypervisor by en-/decrypting them on world switches. Thus, it adds additional protection to Linux guests against exfiltration, control flow and rollback attacks. With SEV-ES, the guest is in full control of what registers the hypervisor can access. This is provided by a guest-host exchange mechanism based on a new exception vector called VMM Communication Exception (#VC), a new instruction called VMGEXIT and a shared Guest-Host Communication Block which is a decrypted page shared between the guest and the hypervisor. Intercepts to the hypervisor become #VC exceptions in an SEV-ES guest so in order for that exception mechanism to work, the early x86 init code needed to be made able to handle exceptions, which, in itself, brings a bunch of very nice cleanups and improvements to the early boot code like an early page fault handler, allowing for on-demand building of the identity mapping. With that, !KASLR configurations do not use the EFI page table anymore but switch to a kernel-controlled one. The main part of this series adds the support for that new exchange mechanism. The goal has been to keep this as much as possibly separate from the core x86 code by concentrating the machinery in two SEV-ES-specific files: arch/x86/kernel/sev-es-shared.c arch/x86/kernel/sev-es.c Other interaction with core x86 code has been kept at minimum and behind static keys to minimize the performance impact on !SEV-ES setups. Work by Joerg Roedel and Thomas Lendacky and others. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAl+FiKYACgkQEsHwGGHe VUqS5BAAlh5mKwtxXMyFyAIHa5tpsgDjbecFzy1UVmZyxN0JHLlM3NLmb+K52drY PiWjNNMi/cFMFazkuLFHuY0poBWrZml8zRS/mExKgUJC6EtguS9FQnRE9xjDBoWQ gOTSGJWEzT5wnFqo8qHwlC2CDCSF1hfL8ks3cUFW2tCWus4F9pyaMSGfFqD224rg Lh/8+arDMSIKE4uH0cm7iSuyNpbobId0l5JNDfCEFDYRigQZ6pZsQ9pbmbEpncs4 rmjDvBA5eHDlNMXq0ukqyrjxWTX4ZLBOBvuLhpyssSXnnu2T+Tcxg09+ZSTyJAe0 LyC9Wfo0v78JASXMAdeH9b1d1mRYNMqjvnBItNQoqweoqUXWz7kvgxCOp6b/G4xp cX5YhB6BprBW2DXL45frMRT/zX77UkEKYc5+0IBegV2xfnhRsjqQAQaWLIksyEaX nz9/C6+1Sr2IAv271yykeJtY6gtlRjg/usTlYpev+K0ghvGvTmuilEiTltjHrso1 XAMbfWHQGSd61LNXofvx/GLNfGBisS6dHVHwtkayinSjXNdWxI6w9fhbWVjQ+y2V hOF05lmzaJSG5kPLrsFHFqm2YcxOmsWkYYDBHvtmBkMZSf5B+9xxDv97Uy9NETcr eSYk//TEkKQqVazfCQS/9LSm0MllqKbwNO25sl0Tw2k6PnheO2g= =toqi -----END PGP SIGNATURE----- Merge tag 'x86_seves_for_v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 SEV-ES support from Borislav Petkov: "SEV-ES enhances the current guest memory encryption support called SEV by also encrypting the guest register state, making the registers inaccessible to the hypervisor by en-/decrypting them on world switches. Thus, it adds additional protection to Linux guests against exfiltration, control flow and rollback attacks. With SEV-ES, the guest is in full control of what registers the hypervisor can access. This is provided by a guest-host exchange mechanism based on a new exception vector called VMM Communication Exception (#VC), a new instruction called VMGEXIT and a shared Guest-Host Communication Block which is a decrypted page shared between the guest and the hypervisor. Intercepts to the hypervisor become #VC exceptions in an SEV-ES guest so in order for that exception mechanism to work, the early x86 init code needed to be made able to handle exceptions, which, in itself, brings a bunch of very nice cleanups and improvements to the early boot code like an early page fault handler, allowing for on-demand building of the identity mapping. With that, !KASLR configurations do not use the EFI page table anymore but switch to a kernel-controlled one. The main part of this series adds the support for that new exchange mechanism. The goal has been to keep this as much as possibly separate from the core x86 code by concentrating the machinery in two SEV-ES-specific files: arch/x86/kernel/sev-es-shared.c arch/x86/kernel/sev-es.c Other interaction with core x86 code has been kept at minimum and behind static keys to minimize the performance impact on !SEV-ES setups. Work by Joerg Roedel and Thomas Lendacky and others" * tag 'x86_seves_for_v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (73 commits) x86/sev-es: Use GHCB accessor for setting the MMIO scratch buffer x86/sev-es: Check required CPU features for SEV-ES x86/efi: Add GHCB mappings when SEV-ES is active x86/sev-es: Handle NMI State x86/sev-es: Support CPU offline/online x86/head/64: Don't call verify_cpu() on starting APs x86/smpboot: Load TSS and getcpu GDT entry before loading IDT x86/realmode: Setup AP jump table x86/realmode: Add SEV-ES specific trampoline entry point x86/vmware: Add VMware-specific handling for VMMCALL under SEV-ES x86/kvm: Add KVM-specific VMMCALL handling under SEV-ES x86/paravirt: Allow hypervisor-specific VMMCALL handling under SEV-ES x86/sev-es: Handle #DB Events x86/sev-es: Handle #AC Events x86/sev-es: Handle VMMCALL Events x86/sev-es: Handle MWAIT/MWAITX Events x86/sev-es: Handle MONITOR/MONITORX Events x86/sev-es: Handle INVD Events x86/sev-es: Handle RDPMC Events x86/sev-es: Handle RDTSC(P) Events ... |
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6873139ed0 |
objtool changes for v5.10:
- Most of the changes are cleanups and reorganization to make the objtool code more arch-agnostic. This is in preparation for non-x86 support. Fixes: - KASAN fixes. - Handle unreachable trap after call to noreturn functions better. - Ignore unreachable fake jumps. - Misc smaller fixes & cleanups. Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAl+FgwIRHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1juGw/6A6goA5/HHapM965yG1eY/rTLp3eIbcma 1ZbkUsP0YfT6wVUzw/sOeZzKNOwOq1FuMfkjuH2KcnlxlcMekIaKvLk8uauW4igM hbFGuuZfZ0An5ka9iQ1W6HGdsuD3vVlN1w/kxdWk0c3lJCVQSTxdCfzF8fuF3gxX lF3Bc1D/ZFcHIHT/hu/jeIUCgCYpD3qZDjQJBScSwVthZC+Fw6weLLGp2rKDaCao HhSQft6MUfDrUKfH3LBIUNPRPCOrHo5+AX6BXxLXJVxqlwO/YU3e0GMwSLedMtBy TASWo7/9GAp+wNNZe8EliyTKrfC3sLxN1QImfjuojxbBVXx/YQ/ToTt9fVGpF4Y+ XhhRFv9520v1tS2wPHIgQGwbh7EWG6mdrmo10RAs/31ViONPrbEZ4WmcA08b/5FY KEkOVb18yfmDVzVZPpSc+HpIFkppEBOf7wPg27Bj3RTZmzIl/y+rKSnxROpsJsWb R6iov7SFVET14lHl1G7tPNXfqRaS7HaOQIj3rSUyAP0ZfX+yIupVJp32dc6Ofg8b SddUCwdIHoFdUNz4Y9csUCrewtCVJbxhV4MIdv0GpWbrgSw96RFZgetaH+6mGRpj 0Kh6M1eC3irDbhBuarWUBAr2doPAq4iOUeQU36Q6YSAbCs83Ws2uKOWOHoFBVwCH uSKT0wqqG+E= =KX5o -----END PGP SIGNATURE----- Merge tag 'objtool-core-2020-10-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull objtool updates from Ingo Molnar: "Most of the changes are cleanups and reorganization to make the objtool code more arch-agnostic. This is in preparation for non-x86 support. Other changes: - KASAN fixes - Handle unreachable trap after call to noreturn functions better - Ignore unreachable fake jumps - Misc smaller fixes & cleanups" * tag 'objtool-core-2020-10-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits) perf build: Allow nested externs to enable BUILD_BUG() usage objtool: Allow nested externs to enable BUILD_BUG() objtool: Permit __kasan_check_{read,write} under UACCESS objtool: Ignore unreachable trap after call to noreturn functions objtool: Handle calling non-function symbols in other sections objtool: Ignore unreachable fake jumps objtool: Remove useless tests before save_reg() objtool: Decode unwind hint register depending on architecture objtool: Make unwind hint definitions available to other architectures objtool: Only include valid definitions depending on source file type objtool: Rename frame.h -> objtool.h objtool: Refactor jump table code to support other architectures objtool: Make relocation in alternative handling arch dependent objtool: Abstract alternative special case handling objtool: Move macros describing structures to arch-dependent code objtool: Make sync-check consider the target architecture objtool: Group headers to check in a single list objtool: Define 'struct orc_entry' only when needed objtool: Skip ORC entry creation for non-text sections objtool: Move ORC logic out of check() ... |
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ec6347bb43 |
x86, powerpc: Rename memcpy_mcsafe() to copy_mc_to_{user, kernel}()
In reaction to a proposal to introduce a memcpy_mcsafe_fast() implementation Linus points out that memcpy_mcsafe() is poorly named relative to communicating the scope of the interface. Specifically what addresses are valid to pass as source, destination, and what faults / exceptions are handled. Of particular concern is that even though x86 might be able to handle the semantics of copy_mc_to_user() with its common copy_user_generic() implementation other archs likely need / want an explicit path for this case: On Fri, May 1, 2020 at 11:28 AM Linus Torvalds <torvalds@linux-foundation.org> wrote: > > On Thu, Apr 30, 2020 at 6:21 PM Dan Williams <dan.j.williams@intel.com> wrote: > > > > However now I see that copy_user_generic() works for the wrong reason. > > It works because the exception on the source address due to poison > > looks no different than a write fault on the user address to the > > caller, it's still just a short copy. So it makes copy_to_user() work > > for the wrong reason relative to the name. > > Right. > > And it won't work that way on other architectures. On x86, we have a > generic function that can take faults on either side, and we use it > for both cases (and for the "in_user" case too), but that's an > artifact of the architecture oddity. > > In fact, it's probably wrong even on x86 - because it can hide bugs - > but writing those things is painful enough that everybody prefers > having just one function. Replace a single top-level memcpy_mcsafe() with either copy_mc_to_user(), or copy_mc_to_kernel(). Introduce an x86 copy_mc_fragile() name as the rename for the low-level x86 implementation formerly named memcpy_mcsafe(). It is used as the slow / careful backend that is supplanted by a fast copy_mc_generic() in a follow-on patch. One side-effect of this reorganization is that separating copy_mc_64.S to its own file means that perf no longer needs to track dependencies for its memcpy_64.S benchmarks. [ bp: Massage a bit. ] Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Tony Luck <tony.luck@intel.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au> Cc: <stable@vger.kernel.org> Link: http://lore.kernel.org/r/CAHk-=wjSqtXAqfUJxFtWNwmguFASTgB0dz1dT3V-78Quiezqbg@mail.gmail.com Link: https://lkml.kernel.org/r/160195561680.2163339.11574962055305783722.stgit@dwillia2-desk3.amr.corp.intel.com |
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ee819aedf3 |
objtool: Make unwind hint definitions available to other architectures
Unwind hints are useful to provide objtool with information about stack states in non-standard functions/code. While the type of information being provided might be very arch specific, the mechanism to provide the information can be useful for other architectures. Move the relevant unwint hint definitions for all architectures to see. [ jpoimboe: REGS_IRET -> REGS_PARTIAL ] Signed-off-by: Julien Thierry <jthierry@redhat.com> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> |
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05a2ae7c03 |
x86/insn: Make inat-tables.c suitable for pre-decompression code
The inat-tables.c file has some arrays in it that contain pointers to other arrays. These pointers need to be relocated when the kernel image is moved to a different location. The pre-decompression boot-code has no support for applying ELF relocations, so initialize these arrays at runtime in the pre-decompression code to make sure all pointers are correctly initialized. Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Link: https://lkml.kernel.org/r/20200907131613.12703-8-joro@8bytes.org |
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23db762be2 |
tools headers kvm s390: Sync headers with the kernel sources
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00e4db5125 |
perf tools changes for v5.9
New features: - Introduce controlling how 'perf stat' and 'perf record' works via a control file descriptor, allowing starting with events configured but disabled until commands are received via the control file descriptor. This allows, for instance for tools such as Intel VTune to make further use of perf as its Linux platform driver. - Improve 'perf record' to to register in a perf.data file header the clockid used to help later correlate things like syslog files and perf events recorded. - Add basic syscall and find_next_bit benchmarks to 'perf bench'. - Allow using computed metrics in calculating other metrics. For instance: { .metric_expr = "l2_rqsts.demand_data_rd_hit + l2_rqsts.pf_hit + l2_rqsts.rfo_hit", .metric_name = "DCache_L2_All_Hits", }, { .metric_expr = "max(l2_rqsts.all_demand_data_rd - l2_rqsts.demand_data_rd_hit, 0) + l2_rqsts.pf_miss + l2_rqsts.rfo_miss", .metric_name = "DCache_L2_All_Miss", }, { .metric_expr = "dcache_l2_all_hits + dcache_l2_all_miss", .metric_name = "DCache_L2_All", } - Add suport for 'd_ratio', '>' and '<' operators to the expression resolver used in calculating metrics in 'perf stat'. Support for new kernel features: - Support TEXT_POKE and KSYMBOL_TYPE_OOL perf metadata events to cope with things like ftrace, trampolines, i.e. changes in the kernel text that gets in the way of properly decoding Intel PT hardware traces, for instance. Intel PT: - Add various knobs to reduce the volume of Intel PT traces by reducing the level of details such as decoding just some types of packets (e.g., FUP/TIP, PSB+), also filtering by time range. - Add new itrace options (log flags to the 'd' option, error flags to the 'e' one, etc), controlling how Intel PT is transformed into perf events, document some missing options (e.g., how to synthesize callchains). BPF: - Properly report BPF errors when parsing events. - Do not setup side-band events if LIBBPF is not linked, fixing a segfault. Libraries: - Improvements on the libtraceevent plugin mechanism. - Improve libtracevent support for KVM trace events SVM exit reasons. - Add a libtracevent plugins for decoding syscalls/sys_enter_futex and for tlb_flush. - Ensure sample_period is set libpfm4 events in 'perf test'. - Fixup libperf namespacing, to make sure what is in libperf has the perf_ namespace while what is now only in tools/perf/ doesn't use that prefix. Arch specific: - Improve the testing of vendor events and metrics in 'perf test'. - Allow no ARM CoreSight hardware tracer sink to be specified on command line. - Fix arm_spe_x recording when mixed with other perf events. - Add s390 idle functions 'psw_idle' and 'psw_idle_exit' to list of idle symbols. - List kernel supplied event aliases for arm64 in 'perf list'. - Add support for extended register capability in PowerPC 9 and 10. - Added nest IMC power9 metric events. Miscellaneous: - No need to setup sample_regs_intr/sample_regs_user for dummy events. - Update various copies of kernel headers, some causing perf to handle new syscalls, MSRs, etc. - Improve usage of flex and yacc, enabling warnings and addressing the fallout. - Add missing '--output' option to 'perf kmem' so that it can pass it along to 'perf record'. - 'perf probe' fixes related to adding multiple probes on the same address for the same event. - Make 'perf probe' warn if the target function is a GNU indirect function. - Remove //anon mmap events from 'perf inject jit' to fix supporting both using ELF files for generated functions and the perf-PID.map approaches. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Test results: The first ones are container based builds of tools/perf with and without libelf support. Where clang is available, it is also used to build perf with/without libelf, and building with LIBCLANGLLVM=1 (built-in clang) with gcc and clang when clang and its devel libraries are installed. The objtool and samples/bpf/ builds are disabled now that I'm switching from using the sources in a local volume to fetching them from a http server to build it inside the container, to make it easier to build in a container cluster. Those will come back later. Several are cross builds, the ones with -x-ARCH and the android one, and those may not have all the features built, due to lack of multi-arch devel packages, available and being used so far on just a few, like debian:experimental-x-{arm64,mipsel}. The 'perf test' one will perform a variety of tests exercising tools/perf/util/, tools/lib/{bpf,traceevent,etc}, as well as run perf commands with a variety of command line event specifications to then intercept the sys_perf_event syscall to check that the perf_event_attr fields are set up as expected, among a variety of other unit tests. Then there is the 'make -C tools/perf build-test' ones, that build tools/perf/ with a variety of feature sets, exercising the build with an incomplete set of features as well as with a complete one. It is planned to have it run on each of the containers mentioned above, using some container orchestration infrastructure. Get in contact if interested in helping having this in place. fedora:rawhide with python3 and gcc 10.1.1-2 is failing (10.1.1-1 on fedora:32 works), fixes will be provided soon. clearlinux:latest is failing on libbpf, there is a fix already in the bpf tree. The ones failing when linking with libllvm, not the default build, were restricted to clang-9/llvm-9, working with anything before or after, e.g., using clang-8 on ubuntu:19.10 and clang-11 on debian:experimental fixed the build in those environments. # export PERF_TARBALL=http://192.168.124.1/perf/perf-5.8.0.tar.xz # dm 1 alpine:3.4 : Ok gcc (Alpine 5.3.0) 5.3.0, clang version 3.8.0 (tags/RELEASE_380/final) 2 alpine:3.5 : Ok gcc (Alpine 6.2.1) 6.2.1 20160822, clang version 3.8.1 (tags/RELEASE_381/final) 3 alpine:3.6 : Ok gcc (Alpine 6.3.0) 6.3.0, clang version 4.0.0 (tags/RELEASE_400/final) 4 alpine:3.7 : Ok gcc (Alpine 6.4.0) 6.4.0, Alpine clang version 5.0.0 (tags/RELEASE_500/final) (based on LLVM 5.0.0) 5 alpine:3.8 : Ok gcc (Alpine 6.4.0) 6.4.0, Alpine clang version 5.0.1 (tags/RELEASE_501/final) (based on LLVM 5.0.1) 6 alpine:3.9 : Ok gcc (Alpine 8.3.0) 8.3.0, Alpine clang version 5.0.1 (tags/RELEASE_502/final) (based on LLVM 5.0.1) 7 alpine:3.10 : Ok gcc (Alpine 8.3.0) 8.3.0, Alpine clang version 8.0.0 (tags/RELEASE_800/final) (based on LLVM 8.0.0) 8 alpine:3.11 : Ok gcc (Alpine 9.2.0) 9.2.0, Alpine clang version 9.0.0 (https://git.alpinelinux.org/aports f7f0d2c2b8bcd6a5843401a9a702029556492689) (based on LLVM 9.0.0) 9 alpine:3.12 : Ok gcc (Alpine 9.3.0) 9.3.0, Alpine clang version 10.0.0 (https://gitlab.alpinelinux.org/alpine/aports.git 7445adce501f8473efdb93b17b5eaf2f1445ed4c) 10 alpine:edge : Ok gcc (Alpine 9.3.0) 9.3.0, Alpine clang version 10.0.0 (git://git.alpinelinux.org/aports 7445adce501f8473efdb93b17b5eaf2f1445ed4c) 11 alt:p8 : Ok x86_64-alt-linux-gcc (GCC) 5.3.1 20151207 (ALT p8 5.3.1-alt3.M80P.1), clang version 3.8.0 (tags/RELEASE_380/final) 12 alt:p9 : Ok x86_64-alt-linux-gcc (GCC) 8.4.1 20200305 (ALT p9 8.4.1-alt0.p9.1), clang version 7.0.1 13 alt:sisyphus : Ok x86_64-alt-linux-gcc (GCC) 9.2.1 20200123 (ALT Sisyphus 9.2.1-alt3), clang version 10.0.0 14 amazonlinux:1 : Ok gcc (GCC) 7.2.1 20170915 (Red Hat 7.2.1-2), clang version 3.6.2 (tags/RELEASE_362/final) 15 amazonlinux:2 : Ok gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-6), clang version 7.0.1 (Amazon Linux 2 7.0.1-1.amzn2.0.2) 16 android-ndk:r12b-arm : Ok arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease) 17 android-ndk:r15c-arm : Ok arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease) 18 centos:6 : Ok gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23) 19 centos:7 : Ok gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39) 20 centos:8 : Ok gcc (GCC) 8.3.1 20191121 (Red Hat 8.3.1-5), clang version 9.0.1 (Red Hat 9.0.1-2.module_el8.2.0+309+0c7b6b03) 21 clearlinux:latest : FAIL gcc (Clear Linux OS for Intel Architecture) 10.2.1 20200723 releases/gcc-10.2.0-3-g677b80db41, clang version 10.0.1 gcc (Clear Linux OS for Intel Architecture) 10.2.1 20200723 releases/gcc-10.2.0-3-g677b80db41 btf.c: In function 'btf__parse_raw': btf.c:625:28: error: 'btf' may be used uninitialized in this function [-Werror=maybe-uninitialized] 625 | return err ? ERR_PTR(err) : btf; | ~~~~~~~~~~~~~~~~~~~^~~~~ 22 debian:8 : Ok gcc (Debian 4.9.2-10+deb8u2) 4.9.2, Debian clang version 3.5.0-10 (tags/RELEASE_350/final) (based on LLVM 3.5.0) 23 debian:9 : Ok gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516, clang version 3.8.1-24 (tags/RELEASE_381/final) 24 debian:10 : Ok gcc (Debian 8.3.0-6) 8.3.0, clang version 7.0.1-8 (tags/RELEASE_701/final) 25 debian:experimental : Ok gcc (Debian 10.2.0-3) 10.2.0, Debian clang version 11.0.0-+rc1-1 26 debian:experimental-x-arm64 : Ok aarch64-linux-gnu-gcc (Debian 9.3.0-8) 9.3.0 27 debian:experimental-x-mips : Ok mips-linux-gnu-gcc (Debian 8.3.0-19) 8.3.0 28 debian:experimental-x-mips64 : Ok mips64-linux-gnuabi64-gcc (Debian 9.3.0-8) 9.3.0 29 debian:experimental-x-mipsel : Ok mipsel-linux-gnu-gcc (Debian 9.2.1-8) 9.2.1 20190909 30 fedora:20 : Ok gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-7) 31 fedora:22 : Ok gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6), clang version 3.5.0 (tags/RELEASE_350/final) 32 fedora:23 : Ok gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6), clang version 3.7.0 (tags/RELEASE_370/final) 33 fedora:24 : Ok gcc (GCC) 6.3.1 20161221 (Red Hat 6.3.1-1), clang version 3.8.1 (tags/RELEASE_381/final) 34 fedora:24-x-ARC-uClibc : Ok arc-linux-gcc (ARCompact ISA Linux uClibc toolchain 2017.09-rc2) 7.1.1 20170710 35 fedora:25 : Ok gcc (GCC) 6.4.1 20170727 (Red Hat 6.4.1-1), clang version 3.9.1 (tags/RELEASE_391/final) 36 fedora:26 : Ok gcc (GCC) 7.3.1 20180130 (Red Hat 7.3.1-2), clang version 4.0.1 (tags/RELEASE_401/final) 37 fedora:27 : Ok gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-6), clang version 5.0.2 (tags/RELEASE_502/final) 38 fedora:28 : Ok gcc (GCC) 8.3.1 20190223 (Red Hat 8.3.1-2), clang version 6.0.1 (tags/RELEASE_601/final) 39 fedora:29 : Ok gcc (GCC) 8.3.1 20190223 (Red Hat 8.3.1-2), clang version 7.0.1 (Fedora 7.0.1-6.fc29) 40 fedora:30 : Ok gcc (GCC) 9.3.1 20200408 (Red Hat 9.3.1-2), clang version 8.0.0 (Fedora 8.0.0-3.fc30) 41 fedora:30-x-ARC-glibc : Ok arc-linux-gcc (ARC HS GNU/Linux glibc toolchain 2019.03-rc1) 8.3.1 20190225 42 fedora:30-x-ARC-uClibc : Ok arc-linux-gcc (ARCv2 ISA Linux uClibc toolchain 2019.03-rc1) 8.3.1 20190225 43 fedora:31 : Ok gcc (GCC) 9.3.1 20200408 (Red Hat 9.3.1-2), clang version 9.0.1 (Fedora 9.0.1-2.fc31) 44 fedora:32 : Ok gcc (GCC) 10.1.1 20200507 (Red Hat 10.1.1-1), clang version 10.0.0 (Fedora 10.0.0-2.fc32) 45 fedora:rawhide : FAIL gcc (GCC) 10.2.1 20200723 (Red Hat 10.2.1-1), clang version 10.0.0 (Fedora 10.0.0-10.fc33) gcc (GCC) 10.2.1 20200723 (Red Hat 10.2.1-1) util/scripting-engines/trace-event-python.c: In function 'python_start_script': util/scripting-engines/trace-event-python.c:1595:2: error: 'visibility' attribute ignored [-Werror=attributes] 1595 | PyMODINIT_FUNC (*initfunc)(void); | ^~~~~~~~~~~~~~ 46 gentoo-stage3-amd64:latest : Ok gcc (Gentoo 9.3.0-r1 p3) 9.3.0 47 mageia:5 : Ok gcc (GCC) 4.9.2, clang version 3.5.2 (tags/RELEASE_352/final) 48 mageia:6 : Ok gcc (Mageia 5.5.0-1.mga6) 5.5.0, clang version 3.9.1 (tags/RELEASE_391/final) 49 mageia:7 : Ok gcc (Mageia 8.3.1-0.20190524.1.mga7) 8.3.1 20190524, clang version 8.0.0 (Mageia 8.0.0-1.mga7) 50 manjaro:latest : Ok gcc (GCC) 9.2.0, clang version 9.0.0 (tags/RELEASE_900/final) 51 openmandriva:cooker : Ok gcc (GCC) 10.0.0 20200502 (OpenMandriva), clang version 10.0.1 52 opensuse:15.0 : Ok gcc (SUSE Linux) 7.4.1 20190424 [gcc-7-branch revision 270538], clang version 5.0.1 (tags/RELEASE_501/final 312548) 53 opensuse:15.1 : Ok gcc (SUSE Linux) 7.5.0, clang version 7.0.1 (tags/RELEASE_701/final 349238) 54 opensuse:15.2 : Ok gcc (SUSE Linux) 7.5.0, clang version 9.0.1 55 opensuse:42.3 : Ok gcc (SUSE Linux) 4.8.5, clang version 3.8.0 (tags/RELEASE_380/final 262553) 56 opensuse:tumbleweed : Ok gcc (SUSE Linux) 10.2.1 20200728 [revision c0438ced53bcf57e4ebb1c38c226e41571aca892], clang version 10.0.1 57 oraclelinux:6 : Ok gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23.0.1) 58 oraclelinux:7 : Ok gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39.0.5) 59 oraclelinux:8 : Ok gcc (GCC) 8.3.1 20191121 (Red Hat 8.3.1-5.0.3), clang version 9.0.1 (Red Hat 9.0.1-2.0.1.module+el8.2.0+5599+9ed9ef6d) 60 ubuntu:12.04 : Ok gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3, Ubuntu clang version 3.0-6ubuntu3 (tags/RELEASE_30/final) (based on LLVM 3.0) 61 ubuntu:14.04 : Ok gcc (Ubuntu 4.8.4-2ubuntu1~14.04.4) 4.8.4 62 ubuntu:16.04 : Ok gcc (Ubuntu 5.4.0-6ubuntu1~16.04.12) 5.4.0 20160609, clang version 3.8.0-2ubuntu4 (tags/RELEASE_380/final) 63 ubuntu:16.04-x-arm : Ok arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609 64 ubuntu:16.04-x-arm64 : Ok aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609 65 ubuntu:16.04-x-powerpc : Ok powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609 66 ubuntu:16.04-x-powerpc64 : Ok powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609 67 ubuntu:16.04-x-powerpc64el : Ok powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609 68 ubuntu:16.04-x-s390 : Ok s390x-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609 69 ubuntu:18.04 : Ok gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0, clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final) 70 ubuntu:18.04-x-arm : Ok arm-linux-gnueabihf-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0 71 ubuntu:18.04-x-arm64 : Ok aarch64-linux-gnu-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0 72 ubuntu:18.04-x-m68k : Ok m68k-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0 73 ubuntu:18.04-x-powerpc : Ok powerpc-linux-gnu-gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0 74 ubuntu:18.04-x-powerpc64 : Ok powerpc64-linux-gnu-gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0 75 ubuntu:18.04-x-powerpc64el : Ok powerpc64le-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0 76 ubuntu:18.04-x-riscv64 : Ok riscv64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0 77 ubuntu:18.04-x-s390 : Ok s390x-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0 78 ubuntu:18.04-x-sh4 : Ok sh4-linux-gnu-gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0 79 ubuntu:18.04-x-sparc64 : Ok sparc64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0 80 ubuntu:18.10 : Ok gcc (Ubuntu 8.3.0-6ubuntu1~18.10.1) 8.3.0, clang version 7.0.0-3 (tags/RELEASE_700/final) 81 ubuntu:19.04 : Ok gcc (Ubuntu 8.3.0-6ubuntu1) 8.3.0, clang version 8.0.0-3 (tags/RELEASE_800/final) 82 ubuntu:19.04-x-alpha : Ok alpha-linux-gnu-gcc (Ubuntu 8.3.0-6ubuntu1) 8.3.0 83 ubuntu:19.04-x-arm64 : Ok aarch64-linux-gnu-gcc (Ubuntu/Linaro 8.3.0-6ubuntu1) 8.3.0 84 ubuntu:19.04-x-hppa : Ok hppa-linux-gnu-gcc (Ubuntu 8.3.0-6ubuntu1) 8.3.0 85 ubuntu:19.10 : Ok gcc (Ubuntu 9.2.1-9ubuntu2) 9.2.1 20191008, clang version 8.0.1-3build1 (tags/RELEASE_801/final) 86 219.74 ubuntu:20.04 : Ok gcc (Ubuntu 9.3.0-10ubuntu2) 9.3.0, clang version 10.0.0-4ubuntu1 # # uname -a Linux quaco 5.7.12-200.fc32.x86_64 #1 SMP Sat Aug 1 16:13:38 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux # git log --oneline -1 |
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25d8d4eeca |
powerpc updates for 5.9
- Add support for (optionally) using queued spinlocks & rwlocks. - Support for a new faster system call ABI using the scv instruction on Power9 or later. - Drop support for the PROT_SAO mmap/mprotect flag as it will be unsupported on Power10 and future processors, leaving us with no way to implement the functionality it requests. This risks breaking userspace, though we believe it is unused in practice. - A bug fix for, and then the removal of, our custom stack expansion checking. We now allow stack expansion up to the rlimit, like other architectures. - Remove the remnants of our (previously disabled) topology update code, which tried to react to NUMA layout changes on virtualised systems, but was prone to crashes and other problems. - Add PMU support for Power10 CPUs. - A change to our signal trampoline so that we don't unbalance the link stack (branch return predictor) in the signal delivery path. - Lots of other cleanups, refactorings, smaller features and so on as usual. Thanks to: Abhishek Goel, Alastair D'Silva, Alexander A. Klimov, Alexey Kardashevskiy, Alistair Popple, Andrew Donnellan, Aneesh Kumar K.V, Anju T Sudhakar, Anton Blanchard, Arnd Bergmann, Athira Rajeev, Balamuruhan S, Bharata B Rao, Bill Wendling, Bin Meng, Cédric Le Goater, Chris Packham, Christophe Leroy, Christoph Hellwig, Daniel Axtens, Dan Williams, David Lamparter, Desnes A. Nunes do Rosario, Erhard F., Finn Thain, Frederic Barrat, Ganesh Goudar, Gautham R. Shenoy, Geoff Levand, Greg Kurz, Gustavo A. R. Silva, Hari Bathini, Harish, Imre Kaloz, Joel Stanley, Joe Perches, John Crispin, Jordan Niethe, Kajol Jain, Kamalesh Babulal, Kees Cook, Laurent Dufour, Leonardo Bras, Li RongQing, Madhavan Srinivasan, Mahesh Salgaonkar, Mark Cave-Ayland, Michal Suchanek, Milton Miller, Mimi Zohar, Murilo Opsfelder Araujo, Nathan Chancellor, Nathan Lynch, Naveen N. Rao, Nayna Jain, Nicholas Piggin, Oliver O'Halloran, Palmer Dabbelt, Pedro Miraglia Franco de Carvalho, Philippe Bergheaud, Pingfan Liu, Pratik Rajesh Sampat, Qian Cai, Qinglang Miao, Randy Dunlap, Ravi Bangoria, Sachin Sant, Sam Bobroff, Sandipan Das, Santosh Sivaraj, Satheesh Rajendran, Shirisha Ganta, Sourabh Jain, Srikar Dronamraju, Stan Johnson, Stephen Rothwell, Thadeu Lima de Souza Cascardo, Thiago Jung Bauermann, Tom Lane, Vaibhav Jain, Vladis Dronov, Wei Yongjun, Wen Xiong, YueHaibing. -----BEGIN PGP SIGNATURE----- iQJHBAABCAAxFiEEJFGtCPCthwEv2Y/bUevqPMjhpYAFAl8tOxATHG1wZUBlbGxl cm1hbi5pZC5hdQAKCRBR6+o8yOGlgDQfEAClXHWf6hnxB84bEu39D51NkVotL1IG BRWFvyix+xHuUkHIouBPAAMl6ngY5X6wkYd+Z+CY9zHNtdSDoVlJE30YXdMQA/dE L/rYxR1884yGR/uU/3wusboO68ReXwcKQPmKOymUfh0zH7ujyJsSWLpXFK1YDC5d 2TVVTi0Q+P5ucMHDh0L+AHirIxZvtZSp43+J7xLtywsj+XAxJWCTGo5WCJbdgbCA Qbv3aOkVyUa3EgsbdM/STPpv82ebqT+PHxeSIO4Jw6ZODtKRH0R5YsWCApuY9eZ+ ebY9RLmgv9ZAhJqB2fv9A5NDcMoGpZNmjM7HrWpXwULKQpkBGHCzJ9FcSdHVMOx8 nbVMFjt4uzLwV1w8lFYslQ2tNH/uH2o9BlryV1RLpiiKokDAJO/NOsWN9y0u/I4J EmAM5DSX2LgVvvas96IlGK8KX4xkOkf8FLX/H5UDvvAfloH8J4CZXk/CWCab/nqY KEHPnMmYvQZ1w9SzyZg9sO/1p6Bl1Gmm75Jv2F1lBiRW/42VcGBI/qLsJ4lC59Fc KbwufYNYYG38wbxDLW1HAPJhRonxIcaZj3EEqk7aTiLZ55nNbu8e2k32CpNXTGqt npOhzJHimcq7L6+878ZW+xpbZwogIEUdRSsmwb6aT8za3ShnYwSA2Q3LYxh9xyGH j3GifvPq6Efp3Q== =QMY1 -----END PGP SIGNATURE----- Merge tag 'powerpc-5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: - Add support for (optionally) using queued spinlocks & rwlocks. - Support for a new faster system call ABI using the scv instruction on Power9 or later. - Drop support for the PROT_SAO mmap/mprotect flag as it will be unsupported on Power10 and future processors, leaving us with no way to implement the functionality it requests. This risks breaking userspace, though we believe it is unused in practice. - A bug fix for, and then the removal of, our custom stack expansion checking. We now allow stack expansion up to the rlimit, like other architectures. - Remove the remnants of our (previously disabled) topology update code, which tried to react to NUMA layout changes on virtualised systems, but was prone to crashes and other problems. - Add PMU support for Power10 CPUs. - A change to our signal trampoline so that we don't unbalance the link stack (branch return predictor) in the signal delivery path. - Lots of other cleanups, refactorings, smaller features and so on as usual. Thanks to: Abhishek Goel, Alastair D'Silva, Alexander A. Klimov, Alexey Kardashevskiy, Alistair Popple, Andrew Donnellan, Aneesh Kumar K.V, Anju T Sudhakar, Anton Blanchard, Arnd Bergmann, Athira Rajeev, Balamuruhan S, Bharata B Rao, Bill Wendling, Bin Meng, Cédric Le Goater, Chris Packham, Christophe Leroy, Christoph Hellwig, Daniel Axtens, Dan Williams, David Lamparter, Desnes A. Nunes do Rosario, Erhard F., Finn Thain, Frederic Barrat, Ganesh Goudar, Gautham R. Shenoy, Geoff Levand, Greg Kurz, Gustavo A. R. Silva, Hari Bathini, Harish, Imre Kaloz, Joel Stanley, Joe Perches, John Crispin, Jordan Niethe, Kajol Jain, Kamalesh Babulal, Kees Cook, Laurent Dufour, Leonardo Bras, Li RongQing, Madhavan Srinivasan, Mahesh Salgaonkar, Mark Cave-Ayland, Michal Suchanek, Milton Miller, Mimi Zohar, Murilo Opsfelder Araujo, Nathan Chancellor, Nathan Lynch, Naveen N. Rao, Nayna Jain, Nicholas Piggin, Oliver O'Halloran, Palmer Dabbelt, Pedro Miraglia Franco de Carvalho, Philippe Bergheaud, Pingfan Liu, Pratik Rajesh Sampat, Qian Cai, Qinglang Miao, Randy Dunlap, Ravi Bangoria, Sachin Sant, Sam Bobroff, Sandipan Das, Santosh Sivaraj, Satheesh Rajendran, Shirisha Ganta, Sourabh Jain, Srikar Dronamraju, Stan Johnson, Stephen Rothwell, Thadeu Lima de Souza Cascardo, Thiago Jung Bauermann, Tom Lane, Vaibhav Jain, Vladis Dronov, Wei Yongjun, Wen Xiong, YueHaibing. * tag 'powerpc-5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (337 commits) selftests/powerpc: Fix pkey syscall redefinitions powerpc: Fix circular dependency between percpu.h and mmu.h powerpc/powernv/sriov: Fix use of uninitialised variable selftests/powerpc: Skip vmx/vsx/tar/etc tests on older CPUs powerpc/40x: Fix assembler warning about r0 powerpc/papr_scm: Add support for fetching nvdimm 'fuel-gauge' metric powerpc/papr_scm: Fetch nvdimm performance stats from PHYP cpuidle: pseries: Fixup exit latency for CEDE(0) cpuidle: pseries: Add function to parse extended CEDE records cpuidle: pseries: Set the latency-hint before entering CEDE selftests/powerpc: Fix online CPU selection powerpc/perf: Consolidate perf_callchain_user_[64|32]() powerpc/pseries/hotplug-cpu: Remove double free in error path powerpc/pseries/mobility: Add pr_debug() for device tree changes powerpc/pseries/mobility: Set pr_fmt() powerpc/cacheinfo: Warn if cache object chain becomes unordered powerpc/cacheinfo: Improve diagnostics about malformed cache lists powerpc/cacheinfo: Use name@unit instead of full DT path in debug messages powerpc/cacheinfo: Set pr_fmt() powerpc: fix function annotations to avoid section mismatch warnings with gcc-10 ... |
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dbf8381731 |
RISC-V Patches for the 5.9 Merge Window, Part 1
We have a lot of new kernel features for this merge window: * ARCH_SUPPORTS_ATOMIC_RMW, to allow OSQ locks to be enabled. * The ability to enable NO_HZ_FULL * Support for enabling kcov, kmemleak, stack protector, and VM debugging. * JUMP_LABEL support. There are also a handful of cleanups. next points out a trivial Kconfig merge conflict. I don't see any way to have done this better: the symbols are sorted, it just happens that HAVE_COPY_THREAD_TLS was in the middle of two new symbols. In case it helps any, here's a pretty current conflict resolution: diff --cc arch/riscv/Kconfig index bc37241a6875,6c4bce7cad8a..7b5905529146 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@@ -57,9 -54,6 +59,8 @@@ config RISC select HAVE_ARCH_SECCOMP_FILTER select HAVE_ARCH_TRACEHOOK select HAVE_ASM_MODVERSIONS + select HAVE_CONTEXT_TRACKING - select HAVE_COPY_THREAD_TLS + select HAVE_DEBUG_KMEMLEAK select HAVE_DMA_CONTIGUOUS if MMU select HAVE_EBPF_JIT if MMU select HAVE_FUTEX_CMPXCHG if FUTEX -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEKzw3R0RoQ7JKlDp6LhMZ81+7GIkFAl8sa2YTHHBhbG1lckBk YWJiZWx0LmNvbQAKCRAuExnzX7sYieFTD/0RlhicBrn5UGpaUwtgwuMENYOrb3pn 5SsPzhCni3/8HvMzr/gOGHWM2YOQZkY5FReIqy1IdbPSe/exjv6DyKMdZr+OI+3+ 232TAwAtILGlKB+zBMJWA3eLah0pbDvs7RpuhiPfWSzzWUrAMHcGSq0TzM2pYe1r KPOLj6bSKpnZO+Dto80V8w4ZeWmtAArVDiujIy8zlvgpM1Z66C2SazloQH7HkPS7 D2hvLZZU00etyAZI/aJJsemCBRg9nsVoqGTBSXWpUPATBRMZFfHovbh7AUJlqY5E HPHBSf3KDeOjoF8EXkvT/6z5Q6+LUpRyK+KKwWCs/337i1652P31nczDps9J6Eq0 IC3J/YWcy4eZ7pMEps0vQmr9aX+FusOCJUmJqJW77Uzi0fHHTXa+O3olwiz/JqYz c3yIihVAvtw9eCSoqlL7YoL9HNyfrXKCtZ4l/DLjwGG5WJw7C7mGMbBMClcD4ytU /Z91ON/UgWFW5805dBaajp72SStp1FP54HsAH5E12XYZSiepnu70G3BUNJHvDJT5 QOKkrhOswwit5DW30Celh6kmtidAWiavy6R0AbbpcqI+bItkEZWD1BSStTc0WdhV JgOp0ieCzu5Jyw03KC1nZA8VgM3zrAmU0moSDqirddzNYuuBTqt39doZOEs1MS2W TiR1JSnGNaKl4Q== =asH5 -----END PGP SIGNATURE----- Merge tag 'riscv-for-linus-5.9-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V updates from Palmer Dabbelt: "We have a lot of new kernel features for this merge window: - ARCH_SUPPORTS_ATOMIC_RMW, to allow OSQ locks to be enabled - The ability to enable NO_HZ_FULL - Support for enabling kcov, kmemleak, stack protector, and VM debugging - JUMP_LABEL support There are also a handful of cleanups" * tag 'riscv-for-linus-5.9-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (24 commits) riscv: disable stack-protector for vDSO RISC-V: Fix build warning for smpboot.c riscv: fix build warning of mm/pageattr riscv: Fix build warning for mm/init RISC-V: Setup exception vector early riscv: Select ARCH_HAS_DEBUG_VM_PGTABLE riscv: Use generic pgprot_* macros from <linux/pgtable.h> mm: pgtable: Make generic pgprot_* macros available for no-MMU riscv: Cleanup unnecessary define in asm-offset.c riscv: Add jump-label implementation riscv: Support R_RISCV_ADD64 and R_RISCV_SUB64 relocs Replace HTTP links with HTTPS ones: RISC-V riscv: Add STACKPROTECTOR supported riscv: Fix typo in asm/hwcap.h uapi header riscv: Add kmemleak support riscv: Allow building with kcov coverage riscv: Enable context tracking riscv: Support irq_work via self IPIs riscv: Enable LOCKDEP_SUPPORT & fixup TRACE_IRQFLAGS_SUPPORT riscv: Fixup lockdep_assert_held with wrong param cpu_running ... |
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6665598658 |
perf tools powerpc: Add support for extended regs in power10
Added support for supported regs which are new in power10 ( MMCR3, SIER2, SIER3 ) to sample_reg_mask in the tool side to use with `-I?` option. Also added PVR check to send extended mask for power10 at kernel while capturing extended regs in each sample. Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Reviewed-by: Kajol Jain <kjain@linux.ibm.com> Reviewed-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Tested-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michael Neuling <mikey@neuling.org> Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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33583e6950 |
perf tools powerpc: Add support for extended register capability
Add extended regs to sample_reg_mask in the tool side to use with `-I?` option. Perf tools side uses extended mask to display the platform supported register names (with -I? option) to the user and also send this mask to the kernel to capture the extended registers in each sample. Hence decide the mask value based on the processor version. Currently definitions for `mfspr`, `SPRN_PVR` are part of `arch/powerpc/util/header.c`. Move this to a header file so that these definitions can be re-used in other source files as well. Signed-off-by: Anju T Sudhakar <anju@linux.vnet.ibm.com> Reviewed-by: Kajol Jain <kjain@linux.ibm.com> Reviewed-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Reviewed--by: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Tested-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michael Neuling <mikey@neuling.org> <mikey@neuling.org> Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Cc: linuxppc-dev@lists.ozlabs.org [Decide extended mask at run time based on platform] Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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dd4a5c224b |
tools arch x86: Sync asm/cpufeatures.h with the kernel sources
To pick up the changes from: |
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f815fe512c |
tools arch x86: Sync the msr-index.h copy with the kernel sources
To pick up the changes in: |
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8e0c02f272
|
Replace HTTP links with HTTPS ones: RISC-V
Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com> |
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5752fe0b81 |
KVM: PPC: Book3S HV: Save/restore new PMU registers
Power ISA v3.1 has added new performance monitoring unit (PMU) special purpose registers (SPRs). They are: Monitor Mode Control Register 3 (MMCR3) Sampled Instruction Event Register A (SIER2) Sampled Instruction Event Register B (SIER3) Add support to save/restore these new SPRs while entering/exiting guest. Also include changes to support KVM_REG_PPC_MMCR3/SIER2/SIER3. Add new SPRs to KVM API documentation. Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/1594996707-3727-6-git-send-email-atrajeev@linux.vnet.ibm.com |
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25d4e7f513 |
tools arch kvm: Sync kvm headers with the kernel sources
To pick up the changes from:
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eb25de2765 |
tools arch: Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy'
To bring in the change made in this cset:
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25ca7e5c0b |
tools arch x86: Sync the msr-index.h copy with the kernel sources
To pick up the changes in:
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dd76c30295 |
tools headers UAPI: Sync kvm.h headers with the kernel sources
To pick the changes in: |
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7e579f3a07 |
tools arch x86 uapi: Synch asm/unistd.h with the kernel sources
To pick up the change in:
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3b69e8b457 |
Fix for arch/sh build regression with newer binutils, removal of SH5,
fixes for module exports, and misc cleanup. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAABAgAGBQJe28l0AAoJELcQ+SIFb8HaKFMH/0T7tHfWit4+efmeDLhfrewd Fq9lLnEGmLy82AZqmd730gvD2ckbjUCm0ikKC79sCd14r3bIB1RCDKfXbY6rB3uI EDijbkzsjfOYG9ZAiDYTIbyrM2u2/1PzFiYTxHVDtPLbCPGfacbcfrDL+u143IXP ez/RHGLE6uYDvKi0Y0/VDKgMCW9bNlcEkL2/tKFVg2cipDi2Lfmi3Jss/id+5uOI N8XeZoyHjyWr7GeRZwN/hNPLDvLY//Uf5q6RB9VrTsN4Vrja7kjWMZkgsGkmGbNo f6BbLenq+KMfOSJrIzS3MgTRinoqRF5S518pkbGtgRQn0rZKfd6h85DG15RlPGk= =Ktnp -----END PGP SIGNATURE----- Merge tag 'sh-for-5.8' of git://git.libc.org/linux-sh Pull arch/sh updates from Rich Felker: "Fix for arch/sh build regression with newer binutils, removal of SH5, fixes for module exports, and misc cleanup" * tag 'sh-for-5.8' of git://git.libc.org/linux-sh: sh: remove sh5 support sh: add missing EXPORT_SYMBOL() for __delay sh: Convert ins[bwl]/outs[bwl] macros to inline functions sh: Convert iounmap() macros to inline functions sh: Add missing DECLARE_EXPORT() for __ashiftrt_r4_xx sh: configs: Cleanup old Kconfig IO scheduler options arch/sh: vmlinux.scr sh: Replace CONFIG_MTD_M25P80 with CONFIG_MTD_SPI_NOR in sh7757lcr_defconfig sh: sh4a: Bring back tmu3_device early device |
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38b3a5aaf2 |
perf tools for v5.8:
- Further Intel PT call-trace fixes - Improve SELinux docs and tool warnings - Fix race at exit in 'perf record' using eventfd. - Add missing build tests to the default set of 'make -C tools/perf build-test' - Sync msr-index.h getting new AMD MSRs to decode and filter in 'perf trace'. - Fix fallback to libaudit in 'perf trace' for arches not using per-arch *.tbl files. - Fixes for 'perf ftrace'. - Fixes and improvements for the 'perf stat' metrics. - Use dummy event to get PERF_RECORD_{FORK,MMAP,etc} while synthesizing those metadata events for pre-existing threads. - Fix leaks detected using clang tooling. - Improvements to PMU event metric testing. - Report summary for 'perf stat' interval mode at the end, summing up all the intervals. - Improve pipe mode, i.e. this now works as expected, continuously dumping samples: # perf record -g -e raw_syscalls:sys_enter | perf --no-pager script - Fixes for event grouping, detecting incompatible groups such as: # perf stat -e '{cycles,power/energy-cores/}' -v WARNING: group events cpu maps do not match, disabling group: anon group { power/energy-cores/, cycles } power/energy-cores/: 0 cycles: 0-7 - Fixes for 'perf probe': blacklist address checking, number of kretprobe instances, etc. - JIT processing improvements and fixes plus the addition of a 'perf test' entry for the java demangler. - Add support for synthesizing first/last level cache, TLB and remove access events from HW tracing in the auxtrace code, first to use is ARM SPE. - Vendor events updates and fixes, including for POWER9 and Intel. - Allow using ~/.perfconfig for removing the ',' separators in 'perf stat' output. - Opt-in support for libpfm4. ================================================================================= Adrian Hunter (8): perf intel-pt: Use allocated branch stack for PEBS sample perf symbols: Fix debuginfo search for Ubuntu perf kcore_copy: Fix module map when there are no modules loaded perf evlist: Disable 'immediate' events last perf script: Fix --call-trace for Intel PT perf record: Respect --no-switch-events perf intel-pt: Refine kernel decoding only warning message perf symbols: Fix kernel maps for kcore and eBPF Alexey Budankov (3): perf docs: Extend CAP_SYS_ADMIN with CAP_PERFMON where needed perf tool: Make perf tool aware of SELinux access control perf docs: Introduce security.txt file to document related issues Anand K Mistry (1): perf record: Use an eventfd to wakeup when done Andi Kleen (1): perf script: Don't force less for non tty output with --xed Arnaldo Carvalho de Melo (21): perf evsel: Rename perf_evsel__object_config() to evsel__object_config() perf evsel: Rename perf_evsel__resort*() to evsel__resort*() perf evsel: Rename perf_evsel__fprintf() to evsel__fprintf() perf evsel: Rename *perf_evsel__get_config_term() & friends to evsel__env() perf evsel: Rename perf_evsel__new*() to evsel__new*() perf evsel: Rename perf_evsel__[hs]w_cache* to evsel__[hs]w_cache* perf counts: Rename perf_evsel__*counts() to evsel__*counts() perf parse-events: Fix incorrect conversion of 'if () free()' to 'zfree()' perf evsel: Initialize evsel->per_pkg_mask to NULL in evsel__init() tools feature: Rename HAVE_EVENTFD to HAVE_EVENTFD_SUPPORT perf build: Group the NO_SYSCALL_TABLE logic perf build: Allow explicitely disabling the NO_SYSCALL_TABLE variable perf trace: Remove union from syscalltbl, all the fields are needed perf trace: Use zalloc() to make sure all fields are zeroed in the syscalltbl constructor perf trace: Grow the syscall table as needed when using libaudit perf build: Remove libaudit from the default feature checks perf build: Add NO_SYSCALL_TABLE=1 to the build tests perf build: Add NO_LIBCRYPTO=1 to the default set of build tests perf build: Add NO_SDT=1 to the default set of build tests perf build: Add a LIBPFM4=1 build test entry tools arch x86: Sync the msr-index.h copy with the kernel sources Changbin Du (2): perf ftrace: Trace system wide if no target is given perf ftrace: Detect workload failure Ed Maste (1): perf tools: Correct license on jsmn JSON parser Gustavo A. R. Silva (2): perf tools: Replace zero-length array with flexible-array perf branch: Replace zero-length array with flexible-array Ian Rogers (38): perf expr: Allow for unlimited escaped characters in a symbol perf metrics: Fix parse errors in cascade lake metrics perf metrics: Fix parse errors in skylake metrics perf expr: Allow ',' to be an other token perf expr: Increase max other perf expr: Parse numbers as doubles perf expr: Debug lex if debugging yacc perf metrics: Fix parse errors in power8 metrics perf metrics: Fix parse errors in power9 metrics perf expr: Print a debug message for division by zero perf evsel: Dummy events never triggers, no need to ask for PERF_SAMPLE_BRANCH_STACK perf record: Add dummy event during system wide synthesis perf c2c: Fix 'perf c2c record -e list' to show the default events used perf evsel: Fix 2 memory leaks perf expr: Test parsing of floating point numbers perf expr: Fix memory leaks in metric bison perf parse-events: Make add PMU verbose output clearer perf test: Provide a subtest callback to ask for the reason for skipping a subtest perf test: Improve pmu event metric testing perf trace: Fix the selection for architectures to generate the errno name tables perf beauty: Allow the CC used in the arch errno names script to acccept CFLAGS perf tools: Grab a copy of libbpf's hashmap perf expr: Migrate expr ids table to a hashmap perf metricgroup: Make 'evlist_used' variable a bitmap instead of array of bools perf expr: Allow numbers to be followed by a dot perf metricgroup: Free metric_events on error perf metricgroup: Always place duration_time last perf metricgroup: Use early return in add_metric perf metricgroup: Delay events string creation perf metricgroup: Order event groups by size perf metricgroup: Remove duped metric group events perf metricgroup: Add options to not group or merge perf metricgroup: Remove unnecessary ',' from events perf list: Add metrics to command line usage tools compiler.h: Add attribute to disable tail calls perf tests: Don't tail call optimize in unwind test perf test: Initialize memory in dwarf-unwind perf libdw: Fix off-by 1 relative directory includes Jin Yao (6): perf parse-events: Use strcmp() to compare the PMU name perf stat: Fix wrong per-thread runtime stat for interval mode perf counts: Reset prev_raw_counts counts perf stat: Copy counts from prev_raw_counts to evsel->counts perf stat: Save aggr value to first member of prev_raw_counts perf stat: Report summary for interval mode Jiri Olsa (13): perf tools: Do not display extra info when there is nothing to build perf tools: Do not seek in pipe fd during tracing data processing perf session: Try to read pipe data from file perf callchain: Setup callchain properly in pipe mode perf script: Enable IP fields for callchains perf tools: Fix is_bpf_image function logic perf trace: Fix compilation error for make NO_LIBBPF=1 DEBUG=1 perf stat: Fix duration_time value for higher intervals perf stat: Fail on extra comma while parsing events perf tests: Consider subtests when searching for user specified tests perf stat: Do not pass avg to generic_metric perf parse: Add 'struct parse_events_state' pointer to scanner perf stat: Ensure group is defined on top of the same cpu mask Li Bin (1): perf util: Fix potential SEGFAULT in put_tracepoints_path error path Masami Hiramatsu (4): perf probe: Accept the instance number of kretprobe event perf probe: Fix to check blacklist address correctly perf probe: Check address correctness by map instead of _etext perf probe: Do not show the skipped events Nick Gasson (6): perf jvmti: Fix jitdump for methods without debug info perf jvmti: Do not report error when missing debug information perf tests: Add test for the java demangler perf jvmti: Fix demangling Java symbols perf jvmti: Remove redundant jitdump line table entries perf jit: Fix inaccurate DWARF line table Paul A. Clarke (5): perf stat: Increase perf metric output resolution perf vendor events power9: Add missing metrics to POWER9 'cpi_breakdown' perf stat: POWER9 metrics: expand "ICT" acronym perf script: Better align register values in dump perf config: Add stat.big-num support Ravi Bangoria (1): perf powerpc: Don't ignore sym-handling.c file Stephane Eranian (1): perf tools: Add optional support for libpfm4 Tan Xiaojun (3): perf tools: Move arm-spe-pkt-decoder.h/c to the new dir perf auxtrace: Add four itrace options perf arm-spe: Support synthetic events Tiezhu Yang (1): perf tools: Remove some duplicated includes Wang ShaoBo (1): perf bpf-loader: Add missing '*' for key_scan_pos Xie XiuQi (1): perf util: Fix memory leak of prefix_if_not_in ================================================================================= Test results: The first ones are container based builds of tools/perf with and without libelf support. Where clang is available, it is also used to build perf with/without libelf, and building with LIBCLANGLLVM=1 (built-in clang) with gcc and clang when clang and its devel libraries are installed. The objtool and samples/bpf/ builds are disabled now that I'm switching from using the sources in a local volume to fetching them from a http server to build it inside the container, to make it easier to build in a container cluster. Those will come back later. Several are cross builds, the ones with -x-ARCH and the android one, and those may not have all the features built, due to lack of multi-arch devel packages, available and being used so far on just a few, like debian:experimental-x-{arm64,mipsel}. The 'perf test' one will perform a variety of tests exercising tools/perf/util/, tools/lib/{bpf,traceevent,etc}, as well as run perf commands with a variety of command line event specifications to then intercept the sys_perf_event syscall to check that the perf_event_attr fields are set up as expected, among a variety of other unit tests. Then there is the 'make -C tools/perf build-test' ones, that build tools/perf/ with a variety of feature sets, exercising the build with an incomplete set of features as well as with a complete one. It is planned to have it run on each of the containers mentioned above, using some container orchestration infrastructure. Get in contact if interested in helping having this in place. Ubuntu 19.10 is failing when linking against libllvm, which isn't the default, needs to be investigated, haven't tested with CC=gcc, but should be the same problem: + make ARCH= CROSS_COMPILE= EXTRA_CFLAGS= LIBCLANGLLVM=1 -C /git/linux/tools/perf O=/tmp/build/perf CC=clang ... /usr/bin/ld: /usr/lib/llvm-9/lib/libclangAnalysis.a(ExprMutationAnalyzer.cpp.o): in function `clang::ast_matchers::internal::matcher_ignoringImpCasts0Matcher::matches(clang::Expr const&, clang::ast_matchers::internal::ASTMatchFinder*, clang::ast_matchers::internal::BoundNodesTreeBuilder*) const': (.text._ZNK5clang12ast_matchers8internal32matcher_ignoringImpCasts0Matcher7matchesERKNS_4ExprEPNS1_14ASTMatchFinderEPNS1_21BoundNodesTreeBuilderE[_ZNK5clang12ast_matchers8internal32matcher_ignoringImpCasts0Matcher7matchesERKNS_4ExprEPNS1_14ASTMatchFinderEPNS1_21BoundNodesTreeBuilderE]+0x43): undefined reference to `clang::ast_matchers::internal::DynTypedMatcher::matches(clang::ast_type_traits::DynTypedNode const&, clang::ast_matchers::internal::ASTMatchFinder*, clang::ast_matchers::internal::BoundNodesTreeBuilder*) const' /usr/bin/ld: /usr/lib/llvm-9/lib/libclangAnalysis.a(ExprMutationAnalyzer.cpp.o): in function `clang::ast_matchers::internal::matcher_hasLoopVariable0Matcher::matches(clang::CXXForRangeStmt const&, clang::ast_matchers::internal::ASTMatchFinder*, clang::ast_matchers::internal::BoundNodesTreeBuilder*) const': (.text._ZNK5clang12ast_matchers8internal31matcher_hasLoopVariable0Matcher7matchesERKNS_15CXXForRangeStmtEPNS1_14ASTMatchFinderEPNS1_21BoundNodesTreeBuilderE[_ZNK5clang12ast_matchers8internal31matcher_hasLoopVariable0Matcher7matchesERKNS_15CXXForRangeStmtEPNS1_14ASTMatchFinderEPNS1_21BoundNodesTreeBuilderE]+0x48): undefined reference to `clang::ast_matchers::internal::DynTypedMatcher::matches(clang::ast_type_traits::DynTypedNode const&, clang::ast_matchers::internal::ASTMatchFinder*, clang::ast_matchers::internal::BoundNodesTreeBuilder*) const' ... # export PERF_TARBALL=http://192.168.124.1/perf/perf-5.7.0-rc7.tar.xz # time dm 1 alpine:3.4 : Ok gcc (Alpine 5.3.0) 5.3.0, clang version 3.8.0 (tags/RELEASE_380/final) 2 alpine:3.5 : Ok gcc (Alpine 6.2.1) 6.2.1 20160822, clang version 3.8.1 (tags/RELEASE_381/final) 3 alpine:3.6 : Ok gcc (Alpine 6.3.0) 6.3.0, clang version 4.0.0 (tags/RELEASE_400/final) 4 alpine:3.7 : Ok gcc (Alpine 6.4.0) 6.4.0, Alpine clang version 5.0.0 (tags/RELEASE_500/final) (based on LLVM 5.0.0) 5 alpine:3.8 : Ok gcc (Alpine 6.4.0) 6.4.0, Alpine clang version 5.0.1 (tags/RELEASE_501/final) (based on LLVM 5.0.1) 6 alpine:3.9 : Ok gcc (Alpine 8.3.0) 8.3.0, Alpine clang version 5.0.1 (tags/RELEASE_502/final) (based on LLVM 5.0.1) 7 alpine:3.10 : Ok gcc (Alpine 8.3.0) 8.3.0, Alpine clang version 8.0.0 (tags/RELEASE_800/final) (based on LLVM 8.0.0) 8 alpine:3.11 : Ok gcc (Alpine 9.2.0) 9.2.0, Alpine clang version 9.0.0 (https://git.alpinelinux.org/aports f7f0d2c2b8bcd6a5843401a9a702029556492689) (based on LLVM 9.0.0) 9 alpine:3.12 : Ok gcc (Alpine 9.3.0) 9.3.0, Alpine clang version 10.0.0 (https://gitlab.alpinelinux.org/alpine/aports.git 7445adce501f8473efdb93b17b5eaf2f1445ed4c) 10 alpine:edge : Ok gcc (Alpine 9.3.0) 9.3.0, Alpine clang version 10.0.0 (git://git.alpinelinux.org/aports 7445adce501f8473efdb93b17b5eaf2f1445ed4c) 11 alt:p8 : Ok x86_64-alt-linux-gcc (GCC) 5.3.1 20151207 (ALT p8 5.3.1-alt3.M80P.1), clang version 3.8.0 (tags/RELEASE_380/final) 12 alt:p9 : Ok x86_64-alt-linux-gcc (GCC) 8.4.1 20200305 (ALT p9 8.4.1-alt0.p9.1), clang version 7.0.1 13 alt:sisyphus : Ok x86_64-alt-linux-gcc (GCC) 9.2.1 20200123 (ALT Sisyphus 9.2.1-alt3), clang version 10.0.0 14 amazonlinux:1 : Ok gcc (GCC) 7.2.1 20170915 (Red Hat 7.2.1-2), clang version 3.6.2 (tags/RELEASE_362/final) 15 amazonlinux:2 : Ok gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-6), clang version 7.0.1 (Amazon Linux 2 7.0.1-1.amzn2.0.2) 16 android-ndk:r12b-arm : Ok arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease) 17 android-ndk:r15c-arm : Ok arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease) 18 centos:5 : Ok gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-55) 19 centos:6 : Ok gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23) 20 centos:7 : Ok gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39) 21 centos:8 : Ok gcc (GCC) 8.3.1 20190507 (Red Hat 8.3.1-4), clang version 8.0.1 (Red Hat 8.0.1-1.module_el8.1.0+215+a01033fb) 22 clearlinux:latest : Ok gcc (Clear Linux OS for Intel Architecture) 9.3.1 20200501 releases/gcc-9.3.0-196-gcb2c76c8b1, clang version 10.0.0 23 debian:8 : Ok gcc (Debian 4.9.2-10+deb8u2) 4.9.2, Debian clang version 3.5.0-10 (tags/RELEASE_350/final) (based on LLVM 3.5.0) 24 debian:9 : Ok gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516, clang version 3.8.1-24 (tags/RELEASE_381/final) 25 debian:10 : Ok gcc (Debian 8.3.0-6) 8.3.0, clang version 7.0.1-8 (tags/RELEASE_701/final) 26 debian:experimental : FAIL gcc (Debian 9.3.0-13) 9.3.0, clang version 9.0.1-12 27 debian:experimental-x-arm64 : Ok aarch64-linux-gnu-gcc (Debian 9.3.0-8) 9.3.0 28 debian:experimental-x-mips : Ok mips-linux-gnu-gcc (Debian 8.3.0-19) 8.3.0 29 debian:experimental-x-mips64 : Ok mips64-linux-gnuabi64-gcc (Debian 9.3.0-8) 9.3.0 30 debian:experimental-x-mipsel : Ok mipsel-linux-gnu-gcc (Debian 9.2.1-8) 9.2.1 20190909 31 fedora:20 : Ok gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-7) 32 fedora:22 : Ok gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6), clang version 3.5.0 (tags/RELEASE_350/final) 33 fedora:23 : Ok gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6), clang version 3.7.0 (tags/RELEASE_370/final) 34 fedora:24 : Ok gcc (GCC) 6.3.1 20161221 (Red Hat 6.3.1-1), clang version 3.8.1 (tags/RELEASE_381/final) 35 fedora:24-x-ARC-uClibc : Ok arc-linux-gcc (ARCompact ISA Linux uClibc toolchain 2017.09-rc2) 7.1.1 20170710 36 fedora:25 : Ok gcc (GCC) 6.4.1 20170727 (Red Hat 6.4.1-1), clang version 3.9.1 (tags/RELEASE_391/final) 37 fedora:26 : Ok gcc (GCC) 7.3.1 20180130 (Red Hat 7.3.1-2), clang version 4.0.1 (tags/RELEASE_401/final) 38 fedora:27 : Ok gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-6), clang version 5.0.2 (tags/RELEASE_502/final) 39 fedora:28 : Ok gcc (GCC) 8.3.1 20190223 (Red Hat 8.3.1-2), clang version 6.0.1 (tags/RELEASE_601/final) 40 fedora:29 : Ok gcc (GCC) 8.3.1 20190223 (Red Hat 8.3.1-2), clang version 7.0.1 (Fedora 7.0.1-6.fc29) 41 fedora:30 : Ok gcc (GCC) 9.2.1 20190827 (Red Hat 9.2.1-1), clang version 8.0.0 (Fedora 8.0.0-3.fc30) 42 fedora:30-x-ARC-glibc : Ok arc-linux-gcc (ARC HS GNU/Linux glibc toolchain 2019.03-rc1) 8.3.1 20190225 43 fedora:30-x-ARC-uClibc : Ok arc-linux-gcc (ARCv2 ISA Linux uClibc toolchain 2019.03-rc1) 8.3.1 20190225 44 fedora:31 : Ok gcc (GCC) 9.3.1 20200408 (Red Hat 9.3.1-2), clang version 9.0.1 (Fedora 9.0.1-2.fc31) 45 fedora:32 : Ok gcc (GCC) 10.1.1 20200507 (Red Hat 10.1.1-1), clang version 10.0.0 (Fedora 10.0.0-1.fc32) 46 fedora:rawhide : Ok gcc (GCC) 10.0.1 20200216 (Red Hat 10.0.1-0.8), clang version 10.0.0 (Fedora 10.0.0-0.3.rc2.fc33) 47 gentoo-stage3-amd64:latest : Ok gcc (Gentoo 9.2.0-r2 p3) 9.2.0 48 mageia:5 : Ok gcc (GCC) 4.9.2, clang version 3.5.2 (tags/RELEASE_352/final) 49 mageia:6 : Ok gcc (Mageia 5.5.0-1.mga6) 5.5.0, clang version 3.9.1 (tags/RELEASE_391/final) 50 mageia:7 : Ok gcc (Mageia 8.3.1-0.20190524.1.mga7) 8.3.1 20190524, clang version 8.0.0 (Mageia 8.0.0-1.mga7) 51 manjaro:latest : Ok gcc (GCC) 9.2.0, clang version 9.0.0 (tags/RELEASE_900/final) 52 openmandriva:cooker : Ok gcc (GCC) 10.0.0 20200502 (OpenMandriva), clang version 10.0.1 53 opensuse:15.0 : Ok gcc (SUSE Linux) 7.4.1 20190424 [gcc-7-branch revision 270538], clang version 5.0.1 (tags/RELEASE_501/final 312548) 54 opensuse:15.1 : Ok gcc (SUSE Linux) 7.5.0, clang version 7.0.1 (tags/RELEASE_701/final 349238) 55 opensuse:15.2 : Ok gcc (SUSE Linux) 7.5.0, clang version 7.0.1 (tags/RELEASE_701/final 349238) 56 opensuse:42.3 : Ok gcc (SUSE Linux) 4.8.5, clang version 3.8.0 (tags/RELEASE_380/final 262553) 57 opensuse:tumbleweed : Ok gcc (SUSE Linux) 9.3.1 20200406 [revision 6db837a5288ee3ca5ec504fbd5a765817e556ac2], clang version 10.0.0 58 oraclelinux:6 : Ok gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23.0.1) 59 oraclelinux:7 : Ok gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39.0.3) 60 oraclelinux:8 : Ok gcc (GCC) 8.3.1 20191121 (Red Hat 8.3.1-5.0.3), clang version 9.0.1 (Red Hat 9.0.1-2.0.1.module+el8.2.0+5599+9ed9ef6d) 61 ubuntu:12.04 : Ok gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3, Ubuntu clang version 3.0-6ubuntu3 (tags/RELEASE_30/final) (based on LLVM 3.0) 62 ubuntu:14.04 : Ok gcc (Ubuntu 4.8.4-2ubuntu1~14.04.4) 4.8.4 63 ubuntu:16.04 : Ok gcc (Ubuntu 5.4.0-6ubuntu1~16.04.12) 5.4.0 20160609, clang version 3.8.0-2ubuntu4 (tags/RELEASE_380/final) 64 ubuntu:16.04-x-arm : Ok arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609 65 ubuntu:16.04-x-arm64 : Ok aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609 66 ubuntu:16.04-x-powerpc : Ok powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609 67 ubuntu:16.04-x-powerpc64 : Ok powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609 68 ubuntu:16.04-x-powerpc64el : Ok powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609 69 ubuntu:16.04-x-s390 : Ok s390x-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609 70 ubuntu:18.04 : Ok gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0, clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final) 71 ubuntu:18.04-x-arm : Ok arm-linux-gnueabihf-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0 72 ubuntu:18.04-x-arm64 : Ok aarch64-linux-gnu-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0 73 ubuntu:18.04-x-m68k : Ok m68k-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0 74 ubuntu:18.04-x-powerpc : Ok powerpc-linux-gnu-gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0 75 ubuntu:18.04-x-powerpc64 : Ok powerpc64-linux-gnu-gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0 76 ubuntu:18.04-x-powerpc64el : Ok powerpc64le-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0 77 ubuntu:18.04-x-riscv64 : Ok riscv64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0 78 ubuntu:18.04-x-s390 : Ok s390x-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0 79 ubuntu:18.04-x-sh4 : Ok sh4-linux-gnu-gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0 80 ubuntu:18.04-x-sparc64 : Ok sparc64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0 81 ubuntu:18.10 : Ok gcc (Ubuntu 8.3.0-6ubuntu1~18.10.1) 8.3.0, clang version 7.0.0-3 (tags/RELEASE_700/final) 82 ubuntu:19.04 : Ok gcc (Ubuntu 8.3.0-6ubuntu1) 8.3.0, clang version 8.0.0-3 (tags/RELEASE_800/final) 83 ubuntu:19.04-x-alpha : Ok alpha-linux-gnu-gcc (Ubuntu 8.3.0-6ubuntu1) 8.3.0 84 ubuntu:19.04-x-arm64 : Ok aarch64-linux-gnu-gcc (Ubuntu/Linaro 8.3.0-6ubuntu1) 8.3.0 85 ubuntu:19.04-x-hppa : Ok hppa-linux-gnu-gcc (Ubuntu 8.3.0-6ubuntu1) 8.3.0 86 ubuntu:19.10 : FAIL gcc (Ubuntu 9.2.1-9ubuntu2) 9.2.1 20191008, clang version 9.0.0-2 (tags/RELEASE_900/final) 87 ubuntu:20.04 : Ok gcc (Ubuntu 9.3.0-10ubuntu2) 9.3.0, clang version 10.0.0-4ubuntu1 # It builds ok with the default set of options. The "7: Simple expression parser" entry is failing due to a bug in the hashmap in libbpf that will hit upstream via the bpf tree. # uname -a Linux five 5.5.17-200.fc31.x86_64 #1 SMP Mon Apr 13 15:29:42 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux # git log --oneline -1 |
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039aeb9deb |
ARM:
- Move the arch-specific code into arch/arm64/kvm - Start the post-32bit cleanup - Cherry-pick a few non-invasive pre-NV patches x86: - Rework of TLB flushing - Rework of event injection, especially with respect to nested virtualization - Nested AMD event injection facelift, building on the rework of generic code and fixing a lot of corner cases - Nested AMD live migration support - Optimization for TSC deadline MSR writes and IPIs - Various cleanups - Asynchronous page fault cleanups (from tglx, common topic branch with tip tree) - Interrupt-based delivery of asynchronous "page ready" events (host side) - Hyper-V MSRs and hypercalls for guest debugging - VMX preemption timer fixes s390: - Cleanups Generic: - switch vCPU thread wakeup from swait to rcuwait The other architectures, and the guest side of the asynchronous page fault work, will come next week. -----BEGIN PGP SIGNATURE----- iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAl7VJcYUHHBib256aW5p QHJlZGhhdC5jb20ACgkQv/vSX3jHroPf6QgAq4wU5wdd1lTGz/i3DIhNVJNJgJlp ozLzRdMaJbdbn5RpAK6PEBd9+pt3+UlojpFB3gpJh2Nazv2OzV4yLQgXXXyyMEx1 5Hg7b4UCJYDrbkCiegNRv7f/4FWDkQ9dx++RZITIbxeskBBCEI+I7GnmZhGWzuC4 7kj4ytuKAySF2OEJu0VQF6u0CvrNYfYbQIRKBXjtOwuRK4Q6L63FGMJpYo159MBQ asg3B1jB5TcuGZ9zrjL5LkuzaP4qZZHIRs+4kZsH9I6MODHGUxKonrkablfKxyKy CFK+iaHCuEXXty5K0VmWM3nrTfvpEjVjbMc7e1QGBQ5oXsDM0pqn84syRg== =v7Wn -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull kvm updates from Paolo Bonzini: "ARM: - Move the arch-specific code into arch/arm64/kvm - Start the post-32bit cleanup - Cherry-pick a few non-invasive pre-NV patches x86: - Rework of TLB flushing - Rework of event injection, especially with respect to nested virtualization - Nested AMD event injection facelift, building on the rework of generic code and fixing a lot of corner cases - Nested AMD live migration support - Optimization for TSC deadline MSR writes and IPIs - Various cleanups - Asynchronous page fault cleanups (from tglx, common topic branch with tip tree) - Interrupt-based delivery of asynchronous "page ready" events (host side) - Hyper-V MSRs and hypercalls for guest debugging - VMX preemption timer fixes s390: - Cleanups Generic: - switch vCPU thread wakeup from swait to rcuwait The other architectures, and the guest side of the asynchronous page fault work, will come next week" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (256 commits) KVM: selftests: fix rdtsc() for vmx_tsc_adjust_test KVM: check userspace_addr for all memslots KVM: selftests: update hyperv_cpuid with SynDBG tests x86/kvm/hyper-v: Add support for synthetic debugger via hypercalls x86/kvm/hyper-v: enable hypercalls regardless of hypercall page x86/kvm/hyper-v: Add support for synthetic debugger interface x86/hyper-v: Add synthetic debugger definitions KVM: selftests: VMX preemption timer migration test KVM: nVMX: Fix VMX preemption timer migration x86/kvm/hyper-v: Explicitly align hcall param for kvm_hyperv_exit KVM: x86/pmu: Support full width counting KVM: x86/pmu: Tweak kvm_pmu_get_msr to pass 'struct msr_data' in KVM: x86: announce KVM_FEATURE_ASYNC_PF_INT KVM: x86: acknowledgment mechanism for async pf page ready notifications KVM: x86: interrupt based APF 'page ready' event delivery KVM: introduce kvm_read_guest_offset_cached() KVM: rename kvm_arch_can_inject_async_page_present() to kvm_arch_can_dequeue_async_page_present() KVM: x86: extend struct kvm_vcpu_pv_apf_data with token info Revert "KVM: async_pf: Fix #DF due to inject "Page not Present" and "Page Ready" exceptions simultaneously" KVM: VMX: Replace zero-length array with flexible-array ... |
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3b1f47d6e7 |
tools arch x86: Sync the msr-index.h copy with the kernel sources
To pick up the changes in:
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69fc06f70f |
There are a lot of objtool changes in this cycle, all across the map:
- Speed up objtool significantly, especially when there are large number of sections - Improve objtool's understanding of special instructions such as IRET, to reduce the number of annotations required - Implement 'noinstr' validation - Do baby steps for non-x86 objtool use - Simplify/fix retpoline decoding - Add vmlinux validation - Improve documentation - Fix various bugs and apply smaller cleanups Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAl7VHvcRHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1gEfBAAhvPWljUmfQsetYq4q9BdbuC4xPSQN9ra e+2zu1MQaohkjAdFM1boNVhCCGKFUvlTEEw3GJR141Us6Y/ZRS8VIo70tmVSku6I OwuR5i8SgEKwurr1SwLxrI05rovYWRLSaDIRTHn2CViPEjgriyFGRV8QKam3AYmI dx47la3ELwuQR68nIdIMzDRt49oZVy+ZKW8Pjgjklzrd5KMYsPy7HPtraHUMeDg+ GdoC7RresIt5AFiDiIJzKTT/jROI7KuHFnM6blluKHoKenWhYBFCz3sd6IvCdQWX JGy+KKY6H+YDMSpgc4FRP56M3GI0hX14oCd7L72epSLfOuzPr9Tmf6wfyQ8f50Je LGLD47tyltIcQR9H85YdR8UQspkjSW6xcql4ByCPTEqp0UzSGTsVntvsHzwsgz6A Csh3s+DVdv0rk5ZjMCu8STA2oErpehJm7fmugt2oLx+nsCNCBUI25lilw5JGeq5c +cO0IRxRxHPeRvMWvItTjbixVAHOHYlB00ilDbvsm+GnTJgu/5cMqpXdLvfXI2Rr nl360bSS3t3J4w5rX0mXw4x24vjQmVrA69jU+oo8RSHje2X8Y4Q7sFHNjmN0YAI3 Re8aP6HSLQjioJxGz9aISlrxmPOXe0CMp8JE586SREVgmS/olXtidMgi7l12uZ2B cRdtNYcn31U= =dbCU -----END PGP SIGNATURE----- Merge tag 'objtool-core-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull objtool updates from Ingo Molnar: "There are a lot of objtool changes in this cycle, all across the map: - Speed up objtool significantly, especially when there are large number of sections - Improve objtool's understanding of special instructions such as IRET, to reduce the number of annotations required - Implement 'noinstr' validation - Do baby steps for non-x86 objtool use - Simplify/fix retpoline decoding - Add vmlinux validation - Improve documentation - Fix various bugs and apply smaller cleanups" * tag 'objtool-core-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (54 commits) objtool: Enable compilation of objtool for all architectures objtool: Move struct objtool_file into arch-independent header objtool: Exit successfully when requesting help objtool: Add check_kcov_mode() to the uaccess safelist samples/ftrace: Fix asm function ELF annotations objtool: optimize add_dead_ends for split sections objtool: use gelf_getsymshndx to handle >64k sections objtool: Allow no-op CFI ops in alternatives x86/retpoline: Fix retpoline unwind x86: Change {JMP,CALL}_NOSPEC argument x86: Simplify retpoline declaration x86/speculation: Change FILL_RETURN_BUFFER to work with objtool objtool: Add support for intra-function calls objtool: Move the IRET hack into the arch decoder objtool: Remove INSN_STACK objtool: Make handle_insn_ops() unconditional objtool: Rework allocating stack_ops on decode objtool: UNWIND_HINT_RET_OFFSET should not check registers objtool: is_fentry_call() crashes if call has no destination x86,smap: Fix smap_{save,restore}() alternatives ... |
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37744feebc |
sh: remove sh5 support
sh5 never became a product and has probably never really worked. Remove it by recursively deleting all associated Kconfig options and all corresponding files. Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rich Felker <dalias@libc.org> |
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8d7fbf01f9 |
KVM: selftests: VMX preemption timer migration test
When a nested VM with a VMX-preemption timer is migrated, verify that the nested VM and its parent VM observe the VMX-preemption timer exit close to the original expiration deadline. Signed-off-by: Makarand Sonare <makarandsonare@google.com> Reviewed-by: Jim Mattson <jmattson@google.com> Message-Id: <20200526215107.205814-3-makarandsonare@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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700d3a5a66 |
x86/syscalls: Revert "x86/syscalls: Make __X32_SYSCALL_BIT be unsigned long"
Revert |
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c536ed2fff |
objtool: Remove SAVE/RESTORE hints
The SAVE/RESTORE hints are now unused; remove them. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Miroslav Benes <mbenes@suse.cz> Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lkml.kernel.org/r/20200416115118.926738768@infradead.org Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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e25eea89bb |
objtool: Introduce HINT_RET_OFFSET
Normally objtool ensures a function keeps the stack layout invariant. But there is a useful exception, it is possible to stuff the return stack in order to 'inject' a 'call': push $fun ret In this case the invariant mentioned above is violated. Add an objtool HINT to annotate this and allow a function exit with a modified stack frame. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Miroslav Benes <mbenes@suse.cz> Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lkml.kernel.org/r/20200416115118.690601403@infradead.org Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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![]() |
e00a2d907e |
tools arch x86: Sync asm/cpufeatures.h with the kernel sources
To pick up the changes from: |
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![]() |
bab1a501e6 |
tools arch x86: Sync the msr-index.h copy with the kernel sources
To pick up the changes in:
|
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![]() |
8c1b724ddb |
ARM:
* GICv4.1 support * 32bit host removal PPC: * secure (encrypted) using under the Protected Execution Framework ultravisor s390: * allow disabling GISA (hardware interrupt injection) and protected VMs/ultravisor support. x86: * New dirty bitmap flag that sets all bits in the bitmap when dirty page logging is enabled; this is faster because it doesn't require bulk modification of the page tables. * Initial work on making nested SVM event injection more similar to VMX, and less buggy. * Various cleanups to MMU code (though the big ones and related optimizations were delayed to 5.8). Instead of using cr3 in function names which occasionally means eptp, KVM too has standardized on "pgd". * A large refactoring of CPUID features, which now use an array that parallels the core x86_features. * Some removal of pointer chasing from kvm_x86_ops, which will also be switched to static calls as soon as they are available. * New Tigerlake CPUID features. * More bugfixes, optimizations and cleanups. Generic: * selftests: cleanups, new MMU notifier stress test, steal-time test * CSV output for kvm_stat. KVM/MIPS has been broken since 5.5, it does not compile due to a patch committed by MIPS maintainers. I had already prepared a fix, but the MIPS maintainers prefer to fix it in generic code rather than KVM so they are taking care of it. -----BEGIN PGP SIGNATURE----- iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAl6GOnIUHHBib256aW5p QHJlZGhhdC5jb20ACgkQv/vSX3jHroMfxwf/ZKLZiRoaovXCOG71M/eHtQb8ZIqU 3MPy+On3eC5Sk/aBxWUL9EFZsbYG6kYdbZ1VOvG9XPBoLlnkDSm/IR0kaELHtnjj oGVda/tvGn46Ne39y8xBptmb91WDcWH0vFthT/CwlMxAw3xjr+gG7Qyo+8F2CW6m SSSuLiHSBnyO1cQKruBTHZ8qnR8LlnfXEqtd6Y4LFLic0LbLIoIdRcT3wjQrcZrm Djd7wbTEYZjUfoqZ72ekwEDUsONcDLDSKcguDO9pSMSCGhpxCVT5Vy68KRpoIMs2 nzNWDKjvqQo5zb2+GWxJgkd12Hv+n7PCXZMbVrWBu1pQsewUns9m4mkpGw== =6fGt -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull kvm updates from Paolo Bonzini: "ARM: - GICv4.1 support - 32bit host removal PPC: - secure (encrypted) using under the Protected Execution Framework ultravisor s390: - allow disabling GISA (hardware interrupt injection) and protected VMs/ultravisor support. x86: - New dirty bitmap flag that sets all bits in the bitmap when dirty page logging is enabled; this is faster because it doesn't require bulk modification of the page tables. - Initial work on making nested SVM event injection more similar to VMX, and less buggy. - Various cleanups to MMU code (though the big ones and related optimizations were delayed to 5.8). Instead of using cr3 in function names which occasionally means eptp, KVM too has standardized on "pgd". - A large refactoring of CPUID features, which now use an array that parallels the core x86_features. - Some removal of pointer chasing from kvm_x86_ops, which will also be switched to static calls as soon as they are available. - New Tigerlake CPUID features. - More bugfixes, optimizations and cleanups. Generic: - selftests: cleanups, new MMU notifier stress test, steal-time test - CSV output for kvm_stat" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (277 commits) x86/kvm: fix a missing-prototypes "vmread_error" KVM: x86: Fix BUILD_BUG() in __cpuid_entry_get_reg() w/ CONFIG_UBSAN=y KVM: VMX: Add a trampoline to fix VMREAD error handling KVM: SVM: Annotate svm_x86_ops as __initdata KVM: VMX: Annotate vmx_x86_ops as __initdata KVM: x86: Drop __exit from kvm_x86_ops' hardware_unsetup() KVM: x86: Copy kvm_x86_ops by value to eliminate layer of indirection KVM: x86: Set kvm_x86_ops only after ->hardware_setup() completes KVM: VMX: Configure runtime hooks using vmx_x86_ops KVM: VMX: Move hardware_setup() definition below vmx_x86_ops KVM: x86: Move init-only kvm_x86_ops to separate struct KVM: Pass kvm_init()'s opaque param to additional arch funcs s390/gmap: return proper error code on ksm unsharing KVM: selftests: Fix cosmetic copy-paste error in vm_mem_region_move() KVM: Fix out of range accesses to memslots KVM: X86: Micro-optimize IPI fastpath delay KVM: X86: Delay read msr data iff writes ICR MSR KVM: PPC: Book3S HV: Add a capability for enabling secure guests KVM: arm64: GICv4.1: Expose HW-based SGIs in debugfs KVM: arm64: GICv4.1: Allow non-trapping WFI when using HW SGIs ... |
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5790921bc1 |
x86/insn: Add Control-flow Enforcement (CET) instructions to the opcode map
Add the following CET instructions to the opcode map: INCSSP: Increment Shadow Stack pointer (SSP). RDSSP: Read SSP into a GPR. SAVEPREVSSP: Use "previous ssp" token at top of current Shadow Stack (SHSTK) to create a "restore token" on the previous (outgoing) SHSTK. RSTORSSP: Restore from a "restore token" to SSP. WRSS: Write to kernel-mode SHSTK (kernel-mode instruction). WRUSS: Write to user-mode SHSTK (kernel-mode instruction). SETSSBSY: Verify the "supervisor token" pointed by MSR_IA32_PL0_SSP, set the token busy, and set then Shadow Stack pointer(SSP) to the value of MSR_IA32_PL0_SSP. CLRSSBSY: Verify the "supervisor token" and clear its busy bit. ENDBR64/ENDBR32: Mark a valid 64/32 bit control transfer endpoint. Detailed information of CET instructions can be found in Intel Software Developer's Manual. Signed-off-by: Yu-cheng Yu <yu-cheng.yu@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Adrian Hunter <adrian.hunter@intel.com> Reviewed-by: Tony Luck <tony.luck@intel.com> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Link: https://lkml.kernel.org/r/20200204171425.28073-2-yu-cheng.yu@intel.com |
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1c482452d5 |
KVM: s390: Features and Enhancements for 5.7 part1
1. Allow to disable gisa 2. protected virtual machines Protected VMs (PVM) are KVM VMs, where KVM can't access the VM's state like guest memory and guest registers anymore. Instead the PVMs are mostly managed by a new entity called Ultravisor (UV), which provides an API, so KVM and the PV can request management actions. PVMs are encrypted at rest and protected from hypervisor access while running. They switch from a normal operation into protected mode, so we can still use the standard boot process to load a encrypted blob and then move it into protected mode. Rebooting is only possible by passing through the unprotected/normal mode and switching to protected again. One mm related patch will go via Andrews mm tree ( mm/gup/writeback: add callbacks for inaccessible pages) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIcBAABAgAGBQJeZf9tAAoJEBF7vIC1phx89J0P/iv3wCoMNDqAttnHa/UQFF04 njUadNYkAADDrsabIEOs9O+BE1/4BVspnIunE4+xw76p5M/7/g5eIhXWcLudhlnL +XtvuEwz/2ffA9JWAAYNKB7cGqBM9BCC+iYzAF9ah6sPLmlDCoF+hRe0g+0tXSON cklUJFril9bOcxd/MxrzFLcmipbxT/Z4/10eBY+FHcm6SQGOKAtJH0xL7X3PfPI5 L/6ZhML9exsj1Iplkrl8BomMRoYOrvfq/jMaZp9SwmfXaOKYmNU3a19MhzfZ593h bfR92H8kZRy/TpBd7EnpxYGQ/n53HkUhFMhtqkkkeHW1rCo8ccwC4VfnXb+KqQp+ nJ8KieWG+OlKKFDuZPl5Gq+jQqjJfzchbyMTYnBNe+GPT5zg76tJXmQyDn5X9p3R mfg+9ZEeEonMu7px93Ht1gLdPiC2gjRckjuBDPqMGEhG2z2SQ/MLri+WnproIQRa TcE7rZBtuyrGFTq4M4dEcsUW02xnOaav6H57kkl8EwqYwgDHlqoUbt0AvLFyW07a RlH7drmhKDwTJkcOhOLeLNM8Un6NvnsLZ8Lbcr9rRf9Z9Lpc+zW88BSwJ7MM/GH8 FEQM8Omnn8KAJTENpIm3bHHyvsi0kJEhl+c3Ila3QnYzXZbJ3ZDaJZngMAbUUnVl YNeFyyALzOgVVBx4kvTm =x6Hn -----END PGP SIGNATURE----- Merge tag 'kvm-s390-next-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD KVM: s390: Features and Enhancements for 5.7 part1 1. Allow to disable gisa 2. protected virtual machines Protected VMs (PVM) are KVM VMs, where KVM can't access the VM's state like guest memory and guest registers anymore. Instead the PVMs are mostly managed by a new entity called Ultravisor (UV), which provides an API, so KVM and the PV can request management actions. PVMs are encrypted at rest and protected from hypervisor access while running. They switch from a normal operation into protected mode, so we can still use the standard boot process to load a encrypted blob and then move it into protected mode. Rebooting is only possible by passing through the unprotected/normal mode and switching to protected again. One mm related patch will go via Andrews mm tree ( mm/gup/writeback: add callbacks for inaccessible pages) |
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4f72180eb4 |
KVM: selftests: Add demand paging content to the demand paging test
The demand paging test is currently a simple page access test which, while potentially useful, doesn't add much versus the existing dirty logging test. To improve the demand paging test, add a basic userfaultfd demand paging implementation. Signed-off-by: Ben Gardon <bgardon@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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0d6f94fd49 |
tools headers UAPI: Update tools's copy of kvm.h headers
Picking the changes from:
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d8e3ee2e2b |
tools arch x86: Sync the msr-index.h copy with the kernel sources
To pick up the changes from these csets:
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391df72fbd |
tools headers kvm: Sync kvm headers with the kernel sources
To pick up the changes from:
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71dd652897 |
tools arch x86: Sync asm/cpufeatures.h with the kernel sources
To pick up the changes from: |
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7636b58639 |
tools headers x86: Sync disabled-features.h
To silence the following tools/perf build warning:
Warning: Kernel ABI header at 'tools/arch/x86/include/asm/disabled-features.h' differs from latest version at 'arch/x86/include/asm/disabled-features.h'
diff -u tools/arch/x86/include/asm/disabled-features.h arch/x86/include/asm/disabled-features.h
Picking up the changes in:
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c75bec79fc |
tools headers UAPI: Sync copy of arm64's asm/unistd.h with the kernel sources
To get the changes in:
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b70a2d6b29 |
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar: "Misc fixes: - three fixes and a cleanup for the resctrl code - a HyperV fix - a fix to /proc/kcore contents in live debugging sessions - a fix for the x86 decoder opcode map" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/decoder: Add TEST opcode to Group3-2 x86/resctrl: Clean up unused function parameter in mkdir path x86/resctrl: Fix a deadlock due to inaccurate reference x86/resctrl: Fix use-after-free due to inaccurate refcount of rdtgroup x86/resctrl: Fix use-after-free when deleting resource groups x86/hyper-v: Add "polling" bit to hv_synic_sint x86/crash: Define arch_crash_save_vmcoreinfo() if CONFIG_CRASH_CORE=y |
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e813e65038 |
ARM: Cleanups and corner case fixes
PPC: Bugfixes x86: * Support for mapping DAX areas with large nested page table entries. * Cleanups and bugfixes here too. A particularly important one is a fix for FPU load when the thread has TIF_NEED_FPU_LOAD. There is also a race condition which could be used in guest userspace to exploit the guest kernel, for which the embargo expired today. * Fast path for IPI delivery vmexits, shaving about 200 clock cycles from IPI latency. * Protect against "Spectre-v1/L1TF" (bring data in the cache via speculative out of bound accesses, use L1TF on the sibling hyperthread to read it), which unfortunately is an even bigger whack-a-mole game than SpectreV1. Sean continues his mission to rewrite KVM. In addition to a sizable number of x86 patches, this time he contributed a pretty large refactoring of vCPU creation that affects all architectures but should not have any visible effect. s390 will come next week together with some more x86 patches. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQEcBAABAgAGBQJeMxtCAAoJEL/70l94x66DQxIIAJv9hMmXLQHGFnUMskjGErR6 DCLSC0YRdRMwE50CerblyJtGsMwGsPyHZwvZxoAceKJ9w0Yay9cyaoJ87ItBgHoY ce0HrqIUYqRSJ/F8WH2lSzkzMBr839rcmqw8p1tt4D5DIsYnxHGWwRaaP+5M/1KQ YKFu3Hea4L00U339iIuDkuA+xgz92LIbsn38svv5fxHhPAyWza0rDEYHNgzMKuoF IakLf5+RrBFAh6ZuhYWQQ44uxjb+uQa9pVmcqYzzTd5t1g4PV5uXtlJKesHoAvik Eba8IEUJn+HgQJjhp3YxQYuLeWOwRF3bwOiZ578MlJ4OPfYXMtbdlqCQANHOcGk= =H/q1 -----END PGP SIGNATURE----- Merge tag 'kvm-5.6-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull KVM updates from Paolo Bonzini: "This is the first batch of KVM changes. ARM: - cleanups and corner case fixes. PPC: - Bugfixes x86: - Support for mapping DAX areas with large nested page table entries. - Cleanups and bugfixes here too. A particularly important one is a fix for FPU load when the thread has TIF_NEED_FPU_LOAD. There is also a race condition which could be used in guest userspace to exploit the guest kernel, for which the embargo expired today. - Fast path for IPI delivery vmexits, shaving about 200 clock cycles from IPI latency. - Protect against "Spectre-v1/L1TF" (bring data in the cache via speculative out of bound accesses, use L1TF on the sibling hyperthread to read it), which unfortunately is an even bigger whack-a-mole game than SpectreV1. Sean continues his mission to rewrite KVM. In addition to a sizable number of x86 patches, this time he contributed a pretty large refactoring of vCPU creation that affects all architectures but should not have any visible effect. s390 will come next week together with some more x86 patches" * tag 'kvm-5.6-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (204 commits) x86/KVM: Clean up host's steal time structure x86/KVM: Make sure KVM_VCPU_FLUSH_TLB flag is not missed x86/kvm: Cache gfn to pfn translation x86/kvm: Introduce kvm_(un)map_gfn() x86/kvm: Be careful not to clear KVM_VCPU_FLUSH_TLB bit KVM: PPC: Book3S PR: Fix -Werror=return-type build failure KVM: PPC: Book3S HV: Release lock on page-out failure path KVM: arm64: Treat emulated TVAL TimerValue as a signed 32-bit integer KVM: arm64: pmu: Only handle supported event counters KVM: arm64: pmu: Fix chained SW_INCR counters KVM: arm64: pmu: Don't mark a counter as chained if the odd one is disabled KVM: arm64: pmu: Don't increment SW_INCR if PMCR.E is unset KVM: x86: Use a typedef for fastop functions KVM: X86: Add 'else' to unify fastop and execute call path KVM: x86: inline memslot_valid_for_gpte KVM: x86/mmu: Use huge pages for DAX-backed files KVM: x86/mmu: Remove lpage_is_disallowed() check from set_spte() KVM: x86/mmu: Fold max_mapping_level() into kvm_mmu_hugepage_adjust() KVM: x86/mmu: Zap any compound page when collapsing sptes KVM: x86/mmu: Remove obsolete gfn restoration in FNAME(fetch) ... |
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c0275ae758 |
Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cpu-features updates from Ingo Molnar: "The biggest change in this cycle was a large series from Sean Christopherson to clean up the handling of VMX features. This both fixes bugs/inconsistencies and makes the code more coherent and future-proof. There are also two cleanups and a minor TSX syslog messages enhancement" * 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits) x86/cpu: Remove redundant cpu_detect_cache_sizes() call x86/cpu: Print "VMX disabled" error message iff KVM is enabled KVM: VMX: Allow KVM_INTEL when building for Centaur and/or Zhaoxin CPUs perf/x86: Provide stubs of KVM helpers for non-Intel CPUs KVM: VMX: Use VMX_FEATURE_* flags to define VMCS control bits KVM: VMX: Check for full VMX support when verifying CPU compatibility KVM: VMX: Use VMX feature flag to query BIOS enabling KVM: VMX: Drop initialization of IA32_FEAT_CTL MSR x86/cpufeatures: Add flag to track whether MSR IA32_FEAT_CTL is configured x86/cpu: Set synthetic VMX cpufeatures during init_ia32_feat_ctl() x86/cpu: Print VMX flags in /proc/cpuinfo using VMX_FEATURES_* x86/cpu: Detect VMX features on Intel, Centaur and Zhaoxin CPUs x86/vmx: Introduce VMX_FEATURES_* x86/cpu: Clear VMX feature flag if VMX is not fully enabled x86/zhaoxin: Use common IA32_FEAT_CTL MSR initialization x86/centaur: Use common IA32_FEAT_CTL MSR initialization x86/mce: WARN once if IA32_FEAT_CTL MSR is left unlocked x86/intel: Initialize IA32_FEAT_CTL MSR at boot tools/x86: Sync msr-index.h from kernel sources selftests, kvm: Replace manual MSR defs with common msr-index.h ... |
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8b7e20a7ba |
x86/decoder: Add TEST opcode to Group3-2
Add TEST opcode to Group3-2 reg=001b as same as Group3-1 does.
Commit
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f6505c88bf |
tools/x86: Sync msr-index.h from kernel sources
Sync msr-index.h to pull in recent renames of the IA32_FEATURE_CONTROL MSR definitions. Update KVM's VMX selftest and turbostat accordingly. Keep the full name in turbostat's output to avoid breaking someone's workflow, e.g. if a script is looking for the full name. While using the renamed defines is by no means necessary, do the sync now to avoid leaving a landmine that will get stepped on the next time msr-index.h needs to be refreshed for some other reason. No functional change intended. Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20191221044513.21680-4-sean.j.christopherson@intel.com |
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9dadc2f918 |
KVM: VMX: Rename INTERRUPT_PENDING to INTERRUPT_WINDOW
Rename interrupt-windown exiting related definitions to match the latest Intel SDM. No functional changes. Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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a717ab38a5 |
tools arch x86: Sync asm/cpufeatures.h with the kernel sources
To pick up the changes from: |
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1fc3d0ee24 |
tools headers kvm: Sync kvm headers with the kernel sources
To pick up the changes from: |
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8122b047dd |
tools arch x86: Sync the msr-index.h copy with the kernel sources
To pick up the changes from these csets: |
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bd5c6b81dd |
perf bench: Update the copies of x86's mem{cpy,set}_64.S
And update linux/linkage.h, which requires in turn that we make these files switch from ENTRY()/ENDPROC() to SYM_FUNC_START()/SYM_FUNC_END(): tools/perf/arch/arm64/tests/regs_load.S tools/perf/arch/arm/tests/regs_load.S tools/perf/arch/powerpc/tests/regs_load.S tools/perf/arch/x86/tests/regs_load.S We also need to switch SYM_FUNC_START_LOCAL() to SYM_FUNC_START() for the functions used directly by 'perf bench', and update tools/perf/check_headers.sh to ignore those changes when checking if the kernel original files drifted from the copies we carry. This is to get the changes from: |
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e680a41fca |
perf/core improvements and fixes:
perf script: Adrian Hunter: - Fix brstackinsn for AUXTRACE. - Fix invalid LBR/binary mismatch error. perf diff: Arnaldo Carvalho de Melo: - Use llabs() with 64-bit values, fixing the build in some 32-bit architectures. perf pmu: Andi Kleen: - Use file system cache to optimize sysfs access. x86: Adrian Hunter: - Add some more Intel instructions to the opcode map and to the perf test entry: gf2p8affineinvqb, gf2p8affineqb, gf2p8mulb, v4fmaddps, v4fmaddss, v4fnmaddps, v4fnmaddss, vaesdec, vaesdeclast, vaesenc, vaesenclast, vcvtne2ps2bf16, vcvtneps2bf16, vdpbf16ps, vgf2p8affineinvqb, vgf2p8affineqb, vgf2p8mulb, vp2intersectd, vp2intersectq, vp4dpwssd, vp4dpwssds, vpclmulqdq, vpcompressb, vpcompressw, vpdpbusd, vpdpbusds, vpdpwssd, vpdpwssds, vpexpandb, vpexpandw, vpopcntb, vpopcntd, vpopcntq, vpopcntw, vpshldd, vpshldq, vpshldvd, vpshldvq, vpshldvw, vpshldw, vpshrdd, vpshrdq, vpshrdvd, vpshrdvq, vpshrdvw, vpshrdw, vpshufbitqmb. perf affinity: Andi Kleen: - Add infrastructure to save/restore affinity perf maps: Arnaldo Carvalho de Melo: - Merge 'struct maps' with 'struct map_groups', as there is a 1x1 relationship, simplifying code overal. perf build: Jiri Olsa: - Allow to link with libbpf dynamicaly. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQR2GiIUctdOfX2qHhGyPKLppCJ+JwUCXd/L8AAKCRCyPKLppCJ+ J+D2AP93RFQCUo2HJaZqxgRt9+9ZULSfhx0BWjGT8uH8E2RwHwD7BpVIfsCpzoS/ B+VWkYZhb/Wxvj6484IX58AoAjb5PAA= =xe7g -----END PGP SIGNATURE----- Merge tag 'perf-core-for-mingo-5.5-20191128' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo: perf script: Adrian Hunter: - Fix brstackinsn for AUXTRACE. - Fix invalid LBR/binary mismatch error. perf diff: Arnaldo Carvalho de Melo: - Use llabs() with 64-bit values, fixing the build in some 32-bit architectures. perf pmu: Andi Kleen: - Use file system cache to optimize sysfs access. x86: Adrian Hunter: - Add some more Intel instructions to the opcode map and to the perf test entry: gf2p8affineinvqb, gf2p8affineqb, gf2p8mulb, v4fmaddps, v4fmaddss, v4fnmaddps, v4fnmaddss, vaesdec, vaesdeclast, vaesenc, vaesenclast, vcvtne2ps2bf16, vcvtneps2bf16, vdpbf16ps, vgf2p8affineinvqb, vgf2p8affineqb, vgf2p8mulb, vp2intersectd, vp2intersectq, vp4dpwssd, vp4dpwssds, vpclmulqdq, vpcompressb, vpcompressw, vpdpbusd, vpdpbusds, vpdpwssd, vpdpwssds, vpexpandb, vpexpandw, vpopcntb, vpopcntd, vpopcntq, vpopcntw, vpshldd, vpshldq, vpshldvd, vpshldvq, vpshldvw, vpshldw, vpshrdd, vpshrdq, vpshrdvd, vpshrdvq, vpshrdvw, vpshrdw, vpshufbitqmb. perf affinity: Andi Kleen: - Add infrastructure to save/restore affinity perf maps: Arnaldo Carvalho de Melo: - Merge 'struct maps' with 'struct map_groups', as there is a 1x1 relationship, simplifying code overal. perf build: Jiri Olsa: - Allow to link with libbpf dynamicaly. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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3f59dbcace |
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar: "The main kernel side changes in this cycle were: - Various Intel-PT updates and optimizations (Alexander Shishkin) - Prohibit kprobes on Xen/KVM emulate prefixes (Masami Hiramatsu) - Add support for LSM and SELinux checks to control access to the perf syscall (Joel Fernandes) - Misc other changes, optimizations, fixes and cleanups - see the shortlog for details. There were numerous tooling changes as well - 254 non-merge commits. Here are the main changes - too many to list in detail: - Enhancements to core tooling infrastructure, perf.data, libperf, libtraceevent, event parsing, vendor events, Intel PT, callchains, BPF support and instruction decoding. - There were updates to the following tools: perf annotate perf diff perf inject perf kvm perf list perf maps perf parse perf probe perf record perf report perf script perf stat perf test perf trace - And a lot of other changes: please see the shortlog and Git log for more details" * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (279 commits) perf parse: Fix potential memory leak when handling tracepoint errors perf probe: Fix spelling mistake "addrees" -> "address" libtraceevent: Fix memory leakage in copy_filter_type libtraceevent: Fix header installation perf intel-bts: Does not support AUX area sampling perf intel-pt: Add support for decoding AUX area samples perf intel-pt: Add support for recording AUX area samples perf pmu: When using default config, record which bits of config were changed by the user perf auxtrace: Add support for queuing AUX area samples perf session: Add facility to peek at all events perf auxtrace: Add support for dumping AUX area samples perf inject: Cut AUX area samples perf record: Add aux-sample-size config term perf record: Add support for AUX area sampling perf auxtrace: Add support for AUX area sample recording perf auxtrace: Move perf_evsel__find_pmu() perf record: Add a function to test for kernel support for AUX area sampling perf tools: Add kernel AUX area sampling definitions perf/core: Make the mlock accounting simple again perf report: Jump to symbol source view from total cycles view ... |
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a25bbc2644 |
Merge branches 'x86-cpu-for-linus' and 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cpu and fpu updates from Ingo Molnar: - math-emu fixes - CPUID updates - sanity-check RDRAND output to see whether the CPU at least pretends to produce random data - various unaligned-access across cachelines fixes in preparation of hardware level split-lock detection - fix MAXSMP constraints to not allow !CPUMASK_OFFSTACK kernels with larger than 512 NR_CPUS - misc FPU related cleanups * 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/cpu: Align the x86_capability array to size of unsigned long x86/cpu: Align cpu_caps_cleared and cpu_caps_set to unsigned long x86/umip: Make the comments vendor-agnostic x86/Kconfig: Rename UMIP config parameter x86/Kconfig: Enforce limit of 512 CPUs with MAXSMP and no CPUMASK_OFFSTACK x86/cpufeatures: Add feature bit RDPRU on AMD x86/math-emu: Limit MATH_EMULATION to 486SX compatibles x86/math-emu: Check __copy_from_user() result x86/rdrand: Sanity-check RDRAND output * 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/fpu: Use XFEATURE_FP/SSE enum values instead of hardcoded numbers x86/fpu: Shrink space allocated for xstate_comp_offsets x86/fpu: Update stale variable name in comment |
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fd2615908d |
Merge branches 'core-objtool-for-linus', 'x86-cleanups-for-linus' and 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 objtool, cleanup, and apic updates from Ingo Molnar: "Objtool: - Fix a gawk 5.0 incompatibility in gen-insn-attr-x86.awk. Most distros are still on gawk 4.2.x. Cleanup: - Misc cleanups, plus the removal of obsolete code such as Calgary IOMMU support, which code hasn't seen any real testing in a long time and there's no known users left. apic: - Two changes: a cleanup and a fix for an (old) race for oneshot threaded IRQ handlers" * 'core-objtool-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/insn: Fix awk regexp warnings * 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86: Remove unused asm/rio.h x86: Fix typos in comments x86/pci: Remove #ifdef __KERNEL__ guard from <asm/pci.h> x86/pci: Remove pci_64.h x86: Remove the calgary IOMMU driver x86/apic, x86/uprobes: Correct parameter names in kernel-doc comments x86/kdump: Remove the unused crash_copy_backup_region() x86/nmi: Remove stale EDAC include leftover * 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/ioapic: Rename misnamed functions x86/ioapic: Prevent inconsistent state when moving an interrupt |
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af4933c121 |
x86/insn: Add some more Intel instructions to the opcode map
Add to the opcode map the following instructions: v4fmaddps v4fmaddss v4fnmaddps v4fnmaddss vaesdec vaesdeclast vaesenc vaesenclast vcvtne2ps2bf16 vcvtneps2bf16 vdpbf16ps gf2p8affineinvqb vgf2p8affineinvqb gf2p8affineqb vgf2p8affineqb gf2p8mulb vgf2p8mulb vp2intersectd vp2intersectq vp4dpwssd vp4dpwssds vpclmulqdq vpcompressb vpcompressw vpdpbusd vpdpbusds vpdpwssd vpdpwssds vpexpandb vpexpandw vpopcntb vpopcntd vpopcntq vpopcntw vpshldd vpshldq vpshldvd vpshldvq vpshldvw vpshldw vpshrdd vpshrdq vpshrdvd vpshrdvq vpshrdvw vpshrdw vpshufbitqmb For information about the instructions, refer Intel SDM May 2019 (325462-070US) and Intel Architecture Instruction Set Extensions May 2019 (319433-037). The instruction decoding can be tested using the perf tools' "x86 instruction decoder - new instructions" test e.g. $ perf test -v "new " 2>&1 | grep -i 'v4fmaddps' Decoded ok: 62 f2 7f 48 9a 20 v4fmaddps (%eax),%zmm0,%zmm4 Decoded ok: 62 f2 7f 48 9a a4 c8 78 56 34 12 v4fmaddps 0x12345678(%eax,%ecx,8),%zmm0,%zmm4 Decoded ok: 62 f2 7f 48 9a 20 v4fmaddps (%rax),%zmm0,%zmm4 Decoded ok: 67 62 f2 7f 48 9a 20 v4fmaddps (%eax),%zmm0,%zmm4 Decoded ok: 62 f2 7f 48 9a a4 c8 78 56 34 12 v4fmaddps 0x12345678(%rax,%rcx,8),%zmm0,%zmm4 Decoded ok: 67 62 f2 7f 48 9a a4 c8 78 56 34 12 v4fmaddps 0x12345678(%eax,%ecx,8),%zmm0,%zmm4 Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: Borislav Petkov <bp@alien8.de> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Yu-cheng Yu <yu-cheng.yu@intel.com> Cc: x86@kernel.org Link: http://lore.kernel.org/lkml/20191125125044.31879-3-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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ceb9e77324 |
Merge branch 'x86/core' into perf/core, to resolve conflicts and to pick up completed topic tree
Conflicts: tools/perf/check-headers.sh Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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b980be189c |
x86/insn: Add some Intel instructions to the opcode map
Add to the opcode map the following instructions: cldemote tpause umonitor umwait movdiri movdir64b enqcmd enqcmds encls enclu enclv pconfig wbnoinvd For information about the instructions, refer Intel SDM May 2019 (325462-070US) and Intel Architecture Instruction Set Extensions May 2019 (319433-037). The instruction decoding can be tested using the perf tools' "x86 instruction decoder - new instructions" test as folllows: $ perf test -v "new " 2>&1 | grep -i cldemote Decoded ok: 0f 1c 00 cldemote (%eax) Decoded ok: 0f 1c 05 78 56 34 12 cldemote 0x12345678 Decoded ok: 0f 1c 84 c8 78 56 34 12 cldemote 0x12345678(%eax,%ecx,8) Decoded ok: 0f 1c 00 cldemote (%rax) Decoded ok: 41 0f 1c 00 cldemote (%r8) Decoded ok: 0f 1c 04 25 78 56 34 12 cldemote 0x12345678 Decoded ok: 0f 1c 84 c8 78 56 34 12 cldemote 0x12345678(%rax,%rcx,8) Decoded ok: 41 0f 1c 84 c8 78 56 34 12 cldemote 0x12345678(%r8,%rcx,8) $ perf test -v "new " 2>&1 | grep -i tpause Decoded ok: 66 0f ae f3 tpause %ebx Decoded ok: 66 0f ae f3 tpause %ebx Decoded ok: 66 41 0f ae f0 tpause %r8d $ perf test -v "new " 2>&1 | grep -i umonitor Decoded ok: 67 f3 0f ae f0 umonitor %ax Decoded ok: f3 0f ae f0 umonitor %eax Decoded ok: 67 f3 0f ae f0 umonitor %eax Decoded ok: f3 0f ae f0 umonitor %rax Decoded ok: 67 f3 41 0f ae f0 umonitor %r8d $ perf test -v "new " 2>&1 | grep -i umwait Decoded ok: f2 0f ae f0 umwait %eax Decoded ok: f2 0f ae f0 umwait %eax Decoded ok: f2 41 0f ae f0 umwait %r8d $ perf test -v "new " 2>&1 | grep -i movdiri Decoded ok: 0f 38 f9 03 movdiri %eax,(%ebx) Decoded ok: 0f 38 f9 88 78 56 34 12 movdiri %ecx,0x12345678(%eax) Decoded ok: 48 0f 38 f9 03 movdiri %rax,(%rbx) Decoded ok: 48 0f 38 f9 88 78 56 34 12 movdiri %rcx,0x12345678(%rax) $ perf test -v "new " 2>&1 | grep -i movdir64b Decoded ok: 66 0f 38 f8 18 movdir64b (%eax),%ebx Decoded ok: 66 0f 38 f8 88 78 56 34 12 movdir64b 0x12345678(%eax),%ecx Decoded ok: 67 66 0f 38 f8 1c movdir64b (%si),%bx Decoded ok: 67 66 0f 38 f8 8c 34 12 movdir64b 0x1234(%si),%cx Decoded ok: 66 0f 38 f8 18 movdir64b (%rax),%rbx Decoded ok: 66 0f 38 f8 88 78 56 34 12 movdir64b 0x12345678(%rax),%rcx Decoded ok: 67 66 0f 38 f8 18 movdir64b (%eax),%ebx Decoded ok: 67 66 0f 38 f8 88 78 56 34 12 movdir64b 0x12345678(%eax),%ecx $ perf test -v "new " 2>&1 | grep -i enqcmd Decoded ok: f2 0f 38 f8 18 enqcmd (%eax),%ebx Decoded ok: f2 0f 38 f8 88 78 56 34 12 enqcmd 0x12345678(%eax),%ecx Decoded ok: 67 f2 0f 38 f8 1c enqcmd (%si),%bx Decoded ok: 67 f2 0f 38 f8 8c 34 12 enqcmd 0x1234(%si),%cx Decoded ok: f3 0f 38 f8 18 enqcmds (%eax),%ebx Decoded ok: f3 0f 38 f8 88 78 56 34 12 enqcmds 0x12345678(%eax),%ecx Decoded ok: 67 f3 0f 38 f8 1c enqcmds (%si),%bx Decoded ok: 67 f3 0f 38 f8 8c 34 12 enqcmds 0x1234(%si),%cx Decoded ok: f2 0f 38 f8 18 enqcmd (%rax),%rbx Decoded ok: f2 0f 38 f8 88 78 56 34 12 enqcmd 0x12345678(%rax),%rcx Decoded ok: 67 f2 0f 38 f8 18 enqcmd (%eax),%ebx Decoded ok: 67 f2 0f 38 f8 88 78 56 34 12 enqcmd 0x12345678(%eax),%ecx Decoded ok: f3 0f 38 f8 18 enqcmds (%rax),%rbx Decoded ok: f3 0f 38 f8 88 78 56 34 12 enqcmds 0x12345678(%rax),%rcx Decoded ok: 67 f3 0f 38 f8 18 enqcmds (%eax),%ebx Decoded ok: 67 f3 0f 38 f8 88 78 56 34 12 enqcmds 0x12345678(%eax),%ecx $ perf test -v "new " 2>&1 | grep -i enqcmds Decoded ok: f3 0f 38 f8 18 enqcmds (%eax),%ebx Decoded ok: f3 0f 38 f8 88 78 56 34 12 enqcmds 0x12345678(%eax),%ecx Decoded ok: 67 f3 0f 38 f8 1c enqcmds (%si),%bx Decoded ok: 67 f3 0f 38 f8 8c 34 12 enqcmds 0x1234(%si),%cx Decoded ok: f3 0f 38 f8 18 enqcmds (%rax),%rbx Decoded ok: f3 0f 38 f8 88 78 56 34 12 enqcmds 0x12345678(%rax),%rcx Decoded ok: 67 f3 0f 38 f8 18 enqcmds (%eax),%ebx Decoded ok: 67 f3 0f 38 f8 88 78 56 34 12 enqcmds 0x12345678(%eax),%ecx $ perf test -v "new " 2>&1 | grep -i encls Decoded ok: 0f 01 cf encls Decoded ok: 0f 01 cf encls $ perf test -v "new " 2>&1 | grep -i enclu Decoded ok: 0f 01 d7 enclu Decoded ok: 0f 01 d7 enclu $ perf test -v "new " 2>&1 | grep -i enclv Decoded ok: 0f 01 c0 enclv Decoded ok: 0f 01 c0 enclv $ perf test -v "new " 2>&1 | grep -i pconfig Decoded ok: 0f 01 c5 pconfig Decoded ok: 0f 01 c5 pconfig $ perf test -v "new " 2>&1 | grep -i wbnoinvd Decoded ok: f3 0f 09 wbnoinvd Decoded ok: f3 0f 09 wbnoinvd Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Reviewed-by: Andi Kleen <ak@linux.intel.com> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: x86@kernel.org Link: http://lore.kernel.org/lkml/20191115135447.6519-3-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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b971880fe7 |
x86/Kconfig: Rename UMIP config parameter
AMD 2nd generation EPYC processors support the UMIP (User-Mode Instruction Prevention) feature. So, rename X86_INTEL_UMIP to generic X86_UMIP and modify the text to cover both Intel and AMD. [ bp: take of the disabled-features.h copy in tools/ too. ] Signed-off-by: Babu Moger <babu.moger@amd.com> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Andy Lutomirski <luto@kernel.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Ricardo Neri <ricardo.neri-calderon@linux.intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "x86@kernel.org" <x86@kernel.org> Link: https://lkml.kernel.org/r/157298912544.17462.2018334793891409521.stgit@naples-babu.amd.com |
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27a0a90d63 |
perf/core improvements and fixes:
perf trace: - Add syscall failure stats to -s/--summary and -S/--with-summary, works in combination with specifying just a set of syscalls, see below first with -s/--summary, then with -S/--with-summary just for the syscalls we saw failing with -s: # perf trace -s sleep 1 Summary of events: sleep (16218), 80 events, 93.0% syscall calls errors total min avg max stddev (msec) (msec) (msec) (msec) (%) ----------- ----- ------ -------- -------- -------- -------- ------ nanosleep 1 0 1000.091 1000.091 1000.091 1000.091 0.00% mmap 8 0 0.045 0.005 0.006 0.008 7.09% mprotect 4 0 0.028 0.005 0.007 0.009 11.38% openat 3 0 0.021 0.005 0.007 0.009 14.07% munmap 1 0 0.017 0.017 0.017 0.017 0.00% brk 4 0 0.010 0.001 0.002 0.004 23.15% read 4 0 0.009 0.002 0.002 0.003 8.13% close 5 0 0.008 0.001 0.002 0.002 10.83% fstat 3 0 0.006 0.002 0.002 0.002 6.97% access 1 1 0.006 0.006 0.006 0.006 0.00% lseek 3 0 0.005 0.001 0.002 0.002 7.37% arch_prctl 2 1 0.004 0.001 0.002 0.002 17.64% execve 1 0 0.000 0.000 0.000 0.000 0.00% # perf trace -e access,arch_prctl -S sleep 1 0.000 ( 0.006 ms): sleep/19503 arch_prctl(option: 0x3001, arg2: 0x7fff165996b0) = -1 EINVAL (Invalid argument) 0.024 ( 0.006 ms): sleep/19503 access(filename: 0x2177e510, mode: R) = -1 ENOENT (No such file or directory) 0.136 ( 0.002 ms): sleep/19503 arch_prctl(option: SET_FS, arg2: 0x7f9421737580) = 0 Summary of events: sleep (19503), 6 events, 50.0% syscall calls errors total min avg max stddev (msec) (msec) (msec) (msec) (%) ---------- ----- ------ ------ ------ ------ ------ ------ arch_prctl 2 1 0.008 0.002 0.004 0.006 57.22% access 1 1 0.006 0.006 0.006 0.006 0.00% # - Introduce --errno-summary, to drill down a bit more in the errno stats: # perf trace --errno-summary -e access,arch_prctl -S sleep 1 0.000 ( 0.006 ms): sleep/5587 arch_prctl(option: 0x3001, arg2: 0x7ffd6ba6aa00) = -1 EINVAL (Invalid argument) 0.028 ( 0.007 ms): sleep/5587 access(filename: 0xb83d9510, mode: R) = -1 ENOENT (No such file or directory) 0.172 ( 0.003 ms): sleep/5587 arch_prctl(option: SET_FS, arg2: 0x7f45b8392580) = 0 Summary of events: sleep (5587), 6 events, 50.0% syscall calls errors total min avg max stddev (msec) (msec) (msec) (msec) (%) ---------- ----- ------ ------ ------ ------ ------ ------ arch_prctl 2 1 0.009 0.003 0.005 0.006 38.90% EINVAL: 1 access 1 1 0.007 0.007 0.007 0.007 0.00% ENOENT: 1 # - Filter own pid to avoid a feedback look in 'perf trace record -a' - Add the glue for the auto generated x86 IRQ vector array. - Show error message when not finding a field used in a filter expression # perf trace --max-events=4 -e syscalls:sys_enter_write --filter="cnt>32767" Failed to set filter "(cnt>32767) && (common_pid != 19938 && common_pid != 8922)" on event syscalls:sys_enter_write with 22 (Invalid argument) # # perf trace --max-events=4 -e syscalls:sys_enter_write --filter="count>32767" 0.000 python3.5/17535 syscalls:sys_enter_write(fd: 3, buf: 0x564b0dc53600, count: 172086) 12.641 python3.5.post/17535 syscalls:sys_enter_write(fd: 3, buf: 0x564b0db63660, count: 75994) 27.738 python3.5.post/17535 syscalls:sys_enter_write(fd: 3, buf: 0x564b0db4b1e0, count: 41635) 136.070 python3.5.post/17535 syscalls:sys_enter_write(fd: 3, buf: 0x564b0dbab510, count: 62232) # - Add a generator for x86's IRQ vectors -> strings - Introduce stroul() (string -> number) methods for the strarray and strarrays classes, also strtoul_flags, allowing to go from both strings and or-ed strings to numbers, allowing things like: # perf trace -e syscalls:sys_enter_mmap --filter="flags==DENYWRITE|PRIVATE|FIXED" sleep 1 0.000 sleep/22588 syscalls:sys_enter_mmap(addr: 0x7f42d2aa5000, len: 1363968, prot: READ|EXEC, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x22000) 0.011 sleep/22588 syscalls:sys_enter_mmap(addr: 0x7f42d2bf2000, len: 311296, prot: READ, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x16f000) 0.015 sleep/22588 syscalls:sys_enter_mmap(addr: 0x7f42d2c3f000, len: 24576, prot: READ|WRITE, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x1bb000) # Allowing to narrow down from the complete set of mmap calls for that workload: # perf trace -e syscalls:sys_enter_mmap sleep 1 0.000 sleep/22695 syscalls:sys_enter_mmap(len: 134773, prot: READ, flags: PRIVATE, fd: 3) 0.041 sleep/22695 syscalls:sys_enter_mmap(len: 8192, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS) 0.053 sleep/22695 syscalls:sys_enter_mmap(len: 1857472, prot: READ, flags: PRIVATE|DENYWRITE, fd: 3) 0.069 sleep/22695 syscalls:sys_enter_mmap(addr: 0x7fd23ffb6000, len: 1363968, prot: READ|EXEC, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x22000) 0.077 sleep/22695 syscalls:sys_enter_mmap(addr: 0x7fd240103000, len: 311296, prot: READ, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x16f000) 0.083 sleep/22695 syscalls:sys_enter_mmap(addr: 0x7fd240150000, len: 24576, prot: READ|WRITE, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x1bb000) 0.095 sleep/22695 syscalls:sys_enter_mmap(addr: 0x7fd240156000, len: 14272, prot: READ|WRITE, flags: PRIVATE|FIXED|ANONYMOUS) 0.339 sleep/22695 syscalls:sys_enter_mmap(len: 217750512, prot: READ, flags: PRIVATE, fd: 3) # Works with all targets, so, for system wide, looking at who calls mmap with flags set to just "PRIVATE": # perf trace --max-events=5 -e syscalls:sys_enter_mmap --filter="flags==PRIVATE" 0.000 pool/2242 syscalls:sys_enter_mmap(len: 756, prot: READ, flags: PRIVATE, fd: 14) 0.050 pool/2242 syscalls:sys_enter_mmap(len: 756, prot: READ, flags: PRIVATE, fd: 14) 0.062 pool/2242 syscalls:sys_enter_mmap(len: 756, prot: READ, flags: PRIVATE, fd: 14) 0.145 goa-identity-s/2240 syscalls:sys_enter_mmap(len: 756, prot: READ, flags: PRIVATE, fd: 18) 0.183 goa-identity-s/2240 syscalls:sys_enter_mmap(len: 756, prot: READ, flags: PRIVATE, fd: 18) # # perf trace --max-events=2 -e syscalls:sys_enter_lseek --filter="whence==SET && offset != 0" 0.000 Cache2 I/O/12047 syscalls:sys_enter_lseek(fd: 277, offset: 43, whence: SET) 1142.070 mozStorage #5/12302 syscalls:sys_enter_lseek(fd: 44</home/acme/.mozilla/firefox/ina67tev.default/cookies.sqlite-wal>, offset: 393536, whence: SET) # perf annotate: - Fix objdump --no-show-raw-insn flag to work with goth gcc and clang. - Streamline objdump execution, preserving the right error codes for better reporting to user. perf report: - Add warning when libunwind not compiled in. perf stat: Jin Yao: - Support --all-kernel/--all-user, to match options available in 'perf record', asking that all the events specified work just with kernel or user events. perf list: Jin Yao: - Hide deprecated events by default, allow showing them with --deprecated. libbperf: Jiri Olsa: - Allow to build with -ltcmalloc. - Finish mmap interface, getting more stuff from tools/perf while adding abstractions to avoid pulling too much stuff, to get libperf to grow as tools needs things like auxtrace, etc. perf scripting engines: Steven Rostedt (VMware): - Iterate on tep event arrays directly, fixing script generation with '-g python' when having multiple tracepoints in a perf.data file. core: - Allow to build with -ltcmalloc. perf test: Leo Yan: - Report failure for mmap events. - Avoid infinite loop for task exit case. - Remove needless headers for bp_account test. - Add dedicated checking helper is_supported(). - Disable bp_signal testing for arm64. Vendor events: arm64: John Garry: - Fix Hisi hip08 DDRC PMU eventname. - Add some missing events for Hisi hip08 DDRC, L3C and HHA PMUs. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQR2GiIUctdOfX2qHhGyPKLppCJ+JwUCXa2zPgAKCRCyPKLppCJ+ J8qoAP9jm84Aoq87j/xh9wl3JeU3aeRXq4V6zpGbtt9u41OmRwD9E8CQIcLDAuNp IQaFYgHydH4OfZw3+rTJJjmJ/eb0IQg= =TDUz -----END PGP SIGNATURE----- Merge tag 'perf-core-for-mingo-5.5-20191021' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo: perf trace: - Add syscall failure stats to -s/--summary and -S/--with-summary, works in combination with specifying just a set of syscalls, see below first with -s/--summary, then with -S/--with-summary just for the syscalls we saw failing with -s: # perf trace -s sleep 1 Summary of events: sleep (16218), 80 events, 93.0% syscall calls errors total min avg max stddev (msec) (msec) (msec) (msec) (%) ----------- ----- ------ -------- -------- -------- -------- ------ nanosleep 1 0 1000.091 1000.091 1000.091 1000.091 0.00% mmap 8 0 0.045 0.005 0.006 0.008 7.09% mprotect 4 0 0.028 0.005 0.007 0.009 11.38% openat 3 0 0.021 0.005 0.007 0.009 14.07% munmap 1 0 0.017 0.017 0.017 0.017 0.00% brk 4 0 0.010 0.001 0.002 0.004 23.15% read 4 0 0.009 0.002 0.002 0.003 8.13% close 5 0 0.008 0.001 0.002 0.002 10.83% fstat 3 0 0.006 0.002 0.002 0.002 6.97% access 1 1 0.006 0.006 0.006 0.006 0.00% lseek 3 0 0.005 0.001 0.002 0.002 7.37% arch_prctl 2 1 0.004 0.001 0.002 0.002 17.64% execve 1 0 0.000 0.000 0.000 0.000 0.00% # perf trace -e access,arch_prctl -S sleep 1 0.000 ( 0.006 ms): sleep/19503 arch_prctl(option: 0x3001, arg2: 0x7fff165996b0) = -1 EINVAL (Invalid argument) 0.024 ( 0.006 ms): sleep/19503 access(filename: 0x2177e510, mode: R) = -1 ENOENT (No such file or directory) 0.136 ( 0.002 ms): sleep/19503 arch_prctl(option: SET_FS, arg2: 0x7f9421737580) = 0 Summary of events: sleep (19503), 6 events, 50.0% syscall calls errors total min avg max stddev (msec) (msec) (msec) (msec) (%) ---------- ----- ------ ------ ------ ------ ------ ------ arch_prctl 2 1 0.008 0.002 0.004 0.006 57.22% access 1 1 0.006 0.006 0.006 0.006 0.00% # - Introduce --errno-summary, to drill down a bit more in the errno stats: # perf trace --errno-summary -e access,arch_prctl -S sleep 1 0.000 ( 0.006 ms): sleep/5587 arch_prctl(option: 0x3001, arg2: 0x7ffd6ba6aa00) = -1 EINVAL (Invalid argument) 0.028 ( 0.007 ms): sleep/5587 access(filename: 0xb83d9510, mode: R) = -1 ENOENT (No such file or directory) 0.172 ( 0.003 ms): sleep/5587 arch_prctl(option: SET_FS, arg2: 0x7f45b8392580) = 0 Summary of events: sleep (5587), 6 events, 50.0% syscall calls errors total min avg max stddev (msec) (msec) (msec) (msec) (%) ---------- ----- ------ ------ ------ ------ ------ ------ arch_prctl 2 1 0.009 0.003 0.005 0.006 38.90% EINVAL: 1 access 1 1 0.007 0.007 0.007 0.007 0.00% ENOENT: 1 # - Filter own pid to avoid a feedback look in 'perf trace record -a' - Add the glue for the auto generated x86 IRQ vector array. - Show error message when not finding a field used in a filter expression # perf trace --max-events=4 -e syscalls:sys_enter_write --filter="cnt>32767" Failed to set filter "(cnt>32767) && (common_pid != 19938 && common_pid != 8922)" on event syscalls:sys_enter_write with 22 (Invalid argument) # # perf trace --max-events=4 -e syscalls:sys_enter_write --filter="count>32767" 0.000 python3.5/17535 syscalls:sys_enter_write(fd: 3, buf: 0x564b0dc53600, count: 172086) 12.641 python3.5.post/17535 syscalls:sys_enter_write(fd: 3, buf: 0x564b0db63660, count: 75994) 27.738 python3.5.post/17535 syscalls:sys_enter_write(fd: 3, buf: 0x564b0db4b1e0, count: 41635) 136.070 python3.5.post/17535 syscalls:sys_enter_write(fd: 3, buf: 0x564b0dbab510, count: 62232) # - Add a generator for x86's IRQ vectors -> strings - Introduce stroul() (string -> number) methods for the strarray and strarrays classes, also strtoul_flags, allowing to go from both strings and or-ed strings to numbers, allowing things like: # perf trace -e syscalls:sys_enter_mmap --filter="flags==DENYWRITE|PRIVATE|FIXED" sleep 1 0.000 sleep/22588 syscalls:sys_enter_mmap(addr: 0x7f42d2aa5000, len: 1363968, prot: READ|EXEC, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x22000) 0.011 sleep/22588 syscalls:sys_enter_mmap(addr: 0x7f42d2bf2000, len: 311296, prot: READ, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x16f000) 0.015 sleep/22588 syscalls:sys_enter_mmap(addr: 0x7f42d2c3f000, len: 24576, prot: READ|WRITE, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x1bb000) # Allowing to narrow down from the complete set of mmap calls for that workload: # perf trace -e syscalls:sys_enter_mmap sleep 1 0.000 sleep/22695 syscalls:sys_enter_mmap(len: 134773, prot: READ, flags: PRIVATE, fd: 3) 0.041 sleep/22695 syscalls:sys_enter_mmap(len: 8192, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS) 0.053 sleep/22695 syscalls:sys_enter_mmap(len: 1857472, prot: READ, flags: PRIVATE|DENYWRITE, fd: 3) 0.069 sleep/22695 syscalls:sys_enter_mmap(addr: 0x7fd23ffb6000, len: 1363968, prot: READ|EXEC, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x22000) 0.077 sleep/22695 syscalls:sys_enter_mmap(addr: 0x7fd240103000, len: 311296, prot: READ, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x16f000) 0.083 sleep/22695 syscalls:sys_enter_mmap(addr: 0x7fd240150000, len: 24576, prot: READ|WRITE, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x1bb000) 0.095 sleep/22695 syscalls:sys_enter_mmap(addr: 0x7fd240156000, len: 14272, prot: READ|WRITE, flags: PRIVATE|FIXED|ANONYMOUS) 0.339 sleep/22695 syscalls:sys_enter_mmap(len: 217750512, prot: READ, flags: PRIVATE, fd: 3) # Works with all targets, so, for system wide, looking at who calls mmap with flags set to just "PRIVATE": # perf trace --max-events=5 -e syscalls:sys_enter_mmap --filter="flags==PRIVATE" 0.000 pool/2242 syscalls:sys_enter_mmap(len: 756, prot: READ, flags: PRIVATE, fd: 14) 0.050 pool/2242 syscalls:sys_enter_mmap(len: 756, prot: READ, flags: PRIVATE, fd: 14) 0.062 pool/2242 syscalls:sys_enter_mmap(len: 756, prot: READ, flags: PRIVATE, fd: 14) 0.145 goa-identity-s/2240 syscalls:sys_enter_mmap(len: 756, prot: READ, flags: PRIVATE, fd: 18) 0.183 goa-identity-s/2240 syscalls:sys_enter_mmap(len: 756, prot: READ, flags: PRIVATE, fd: 18) # # perf trace --max-events=2 -e syscalls:sys_enter_lseek --filter="whence==SET && offset != 0" 0.000 Cache2 I/O/12047 syscalls:sys_enter_lseek(fd: 277, offset: 43, whence: SET) 1142.070 mozStorage #5/12302 syscalls:sys_enter_lseek(fd: 44</home/acme/.mozilla/firefox/ina67tev.default/cookies.sqlite-wal>, offset: 393536, whence: SET) # perf annotate: - Fix objdump --no-show-raw-insn flag to work with goth gcc and clang. - Streamline objdump execution, preserving the right error codes for better reporting to user. perf report: - Add warning when libunwind not compiled in. perf stat: Jin Yao: - Support --all-kernel/--all-user, to match options available in 'perf record', asking that all the events specified work just with kernel or user events. perf list: Jin Yao: - Hide deprecated events by default, allow showing them with --deprecated. libbperf: Jiri Olsa: - Allow to build with -ltcmalloc. - Finish mmap interface, getting more stuff from tools/perf while adding abstractions to avoid pulling too much stuff, to get libperf to grow as tools needs things like auxtrace, etc. perf scripting engines: Steven Rostedt (VMware): - Iterate on tep event arrays directly, fixing script generation with '-g python' when having multiple tracepoints in a perf.data file. core: - Allow to build with -ltcmalloc. perf test: Leo Yan: - Report failure for mmap events. - Avoid infinite loop for task exit case. - Remove needless headers for bp_account test. - Add dedicated checking helper is_supported(). - Disable bp_signal testing for arm64. Vendor events: arm64: John Garry: - Fix Hisi hip08 DDRC PMU eventname. - Add some missing events for Hisi hip08 DDRC, L3C and HHA PMUs. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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aa7a7b7297 |
Merge branch 'perf/urgent' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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4d65adfcd1 |
x86: xen: insn: Decode Xen and KVM emulate-prefix signature
Decode Xen and KVM's emulate-prefix signature by x86 insn decoder. It is called "prefix" but actually not x86 instruction prefix, so this adds insn.emulate_prefix_size field instead of reusing insn.prefixes. If x86 decoder finds a special sequence of instructions of XEN_EMULATE_PREFIX and 'ud2a; .ascii "kvm"', it just counts the length, set insn.emulate_prefix_size and fold it with the next instruction. In other words, the signature and the next instruction is treated as a single instruction. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Juergen Gross <jgross@suse.com> Cc: x86@kernel.org Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Stefano Stabellini <sstabellini@kernel.org> Cc: Andrew Cooper <andrew.cooper3@citrix.com> Cc: Borislav Petkov <bp@alien8.de> Cc: xen-devel@lists.xenproject.org Cc: Randy Dunlap <rdunlap@infradead.org> Link: https://lkml.kernel.org/r/156777564986.25081.4964537658500952557.stgit@devnote2 |
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d2b72b7280 |
tools arch x86: Grab a copy of the file containing the IRQ vector defines
We'll use it to generate a table and then convert the irq_vectors:* tracepoint 'vector' arg in things like perf trace, script, etc. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-z7gi058lzhnrm32slevg3xod@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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7cb3a24457 |
tools headers kvm: Sync kvm headers with the kernel sources
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7a12f514c4 |
tools headers kvm: Sync kvm headers with the kernel sources
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444e2ff34d |
tools arch x86: Grab a copy of the file containing the MSR numbers
We'll use it to generate a table and then convert the msr:{read,write}_msr 'msr' option in things like perf trace, script, etc. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-y1f4s0y1s43d4drh7pd2huzn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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700c1018b8 |
x86/insn: Fix awk regexp warnings
gawk 5.0.1 generates the following regexp warnings: GEN /home/sasha/torvalds/tools/objtool/arch/x86/lib/inat-tables.c awk: ../arch/x86/tools/gen-insn-attr-x86.awk:260: warning: regexp escape sequence `\:' is not a known regexp operator awk: ../arch/x86/tools/gen-insn-attr-x86.awk:350: (FILENAME=../arch/x86/lib/x86-opcode-map.txt FNR=41) warning: regexp escape sequence `\&' is not a known regexp operator Ealier versions of gawk are not known to generate these warnings. The gawk manual referenced below does not list characters ':' and '&' as needing escaping, so 'unescape' them. See https://www.gnu.org/software/gawk/manual/html_node/Escape-Sequences.html for more info. Running diff on the output generated by the script before and after applying the patch reported no differences. [ bp: Massage commit message. ] [ Caught the respective tools header discrepancy. ] Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Alexander Kapshuk <alexander.kapshuk@gmail.com> Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: x86-ml <x86@kernel.org> Link: https://lkml.kernel.org/r/20190924044659.3785-1-alexander.kapshuk@gmail.com |
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b7ad610848 |
tools headers kvm: Sync kvm headers with the kernel sources
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40f1c039c7 |
tools arch x86: Sync asm/cpufeatures.h with the kernel sources
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761830a03c |
tools arch x86 uapi: Synch asm/unistd.h with the kernel sources
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22331f8952 |
Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cpu-feature updates from Ingo Molnar: - Rework the Intel model names symbols/macros, which were decades of ad-hoc extensions and added random noise. It's now a coherent, easy to follow nomenclature. - Add new Intel CPU model IDs: - "Tiger Lake" desktop and mobile models - "Elkhart Lake" model ID - and the "Lightning Mountain" variant of Airmont, plus support code - Add the new AVX512_VP2INTERSECT instruction to cpufeatures - Remove Intel MPX user-visible APIs and the self-tests, because the toolchain (gcc) is not supporting it going forward. This is the first, lowest-risk phase of MPX removal. - Remove X86_FEATURE_MFENCE_RDTSC - Various smaller cleanups and fixes * 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (25 commits) x86/cpu: Update init data for new Airmont CPU model x86/cpu: Add new Airmont variant to Intel family x86/cpu: Add Elkhart Lake to Intel family x86/cpu: Add Tiger Lake to Intel family x86: Correct misc typos x86/intel: Add common OPTDIFFs x86/intel: Aggregate microserver naming x86/intel: Aggregate big core graphics naming x86/intel: Aggregate big core mobile naming x86/intel: Aggregate big core client naming x86/cpufeature: Explain the macro duplication x86/ftrace: Remove mcount() declaration x86/PCI: Remove superfluous returns from void functions x86/msr-index: Move AMD MSRs where they belong x86/cpu: Use constant definitions for CPU models lib: Remove redundant ftrace flag removal x86/crash: Remove unnecessary comparison x86/bitops: Use __builtin_constant_p() directly instead of IS_IMMEDIATE() x86: Remove X86_FEATURE_MFENCE_RDTSC x86/mpx: Remove MPX APIs ... |
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772c1d06bd |
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar: "Kernel side changes: - Improved kbprobes robustness - Intel PEBS support for PT hardware tracing - Other Intel PT improvements: high order pages memory footprint reduction and various related cleanups - Misc cleanups The perf tooling side has been very busy in this cycle, with over 300 commits. This is an incomplete high-level summary of the many improvements done by over 30 developers: - Lots of updates to the following tools: 'perf c2c' 'perf config' 'perf record' 'perf report' 'perf script' 'perf test' 'perf top' 'perf trace' - Updates to libperf and libtraceevent, and a consolidation of the proliferation of x86 instruction decoder libraries. - Vendor event updates for Intel and PowerPC CPUs, - Updates to hardware tracing tooling for ARM and Intel CPUs, - ... and lots of other changes and cleanups - see the shortlog and Git log for details" * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (322 commits) kprobes: Prohibit probing on BUG() and WARN() address perf/x86: Make more stuff static x86, perf: Fix the dependency of the x86 insn decoder selftest objtool: Ignore intentional differences for the x86 insn decoder objtool: Update sync-check.sh from perf's check-headers.sh perf build: Ignore intentional differences for the x86 insn decoder perf intel-pt: Use shared x86 insn decoder perf intel-pt: Remove inat.c from build dependency list perf: Update .gitignore file objtool: Move x86 insn decoder to a common location perf metricgroup: Support multiple events for metricgroup perf metricgroup: Scale the metric result perf pmu: Change convert_scale from static to global perf symbols: Move mem_info and branch_info out of symbol.h perf auxtrace: Uninline functions that touch perf_session perf tools: Remove needless evlist.h include directives perf tools: Remove needless evlist.h include directives perf tools: Remove needless thread_map.h include directives perf tools: Remove needless thread.h include directives perf tools: Remove needless map.h include directives ... |
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51bc620ba9 |
riscv: Add support for libdw
This patch adds support for DWARF register mappings and libdw registers initialization, which is used by perf callchain analyzing when --call-graph=dwarf is given. Signed-off-by: Mao Han <han_mao@c-sky.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Greentime Hu <green.hu@gmail.com> Cc: Palmer Dabbelt <palmer@sifive.com> Cc: linux-riscv <linux-riscv@lists.infradead.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Guo Ren <guoren@kernel.org> Tested-by: Greentime Hu <greentime.hu@sifive.com> Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com> |
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00a263902a |
perf intel-pt: Use shared x86 insn decoder
Now that there's a common version of the decoder for all tools, use it instead of the local copy. Also use perf's check-headers.sh script to diff the decoder files to make sure they remain in sync with the kernel version. Objtool has a similar check. Committer notes: Had to keep this all pointing explicitely to x86 headers/files, i.e. instead of asm/isnn.h we had to use ../include/asm/insn.h when the files were in differemt dirs, or just replace "<asm/foo.h>" with "foo.h". This way we continue to be able to process perf.data files with Intel PT traces in distros other than x86. Also fixed up the awk script paths to use $(srcdir)/tools/arch instead or relative directories so that we keep detached tarballs (make help | grep perf) working. For now the include lines in these headers are being ignored so as not to flag false reports of kernel/tools out of sync. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: x86@kernel.org Link: http://lore.kernel.org/lkml/8a37e615d2880f039505d693d1e068a009358a2b.1567118001.git.jpoimboe@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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d046b72548 |
objtool: Move x86 insn decoder to a common location
The kernel tree has three identical copies of the x86 instruction decoder. Two of them are in the tools subdir. The tools subdir is supposed to be completely standalone and separate from the kernel. So having at least one copy of the kernel decoder in the tools subdir is unavoidable. However, we don't need *two* of them. Move objtool's copy of the decoder to a shared location, so that perf will also be able to use it. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: x86@kernel.org Link: http://lore.kernel.org/lkml/55b486b88f6bcd0c9a2a04b34f964860c8390ca8.1567118001.git.jpoimboe@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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b3e30c9884 |
Linux 5.3-rc6
-----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAl1i2wkeHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGcDQIAJINYON5WdDSFDpp htva213hSIxYLix8Dc4cTMk8qT/P2MAj9pPYERuLwIxWZlfbduW6Fxy8bJANZ7k3 4cJ/IbmA5M5ZIaOJTTL45w8H0CMR/4mdPl5rb5k/Wkh449Cj101gZLlh0FEtR5zG uDJecKSuHjH1ikySk6+zmRG5X+lq6wNY8NkuBtfwAwLffFc0ljQHwPUMJ8ojgqt/ p3ChNgtb/I6U6ExITlyktKdP59bAoHAoBiKKFZWw5yJWgXE2q4Sv9nT4Btkr5KdJ 9mnWnSaSLwptNCOtU4tKLwFIZP2WoVXGPNxxq4XLoTEuieXCqmikhc9tSSTwk+Tp CKHN6wU= =JkJ4 -----END PGP SIGNATURE----- Merge tag 'v5.3-rc6' into x86/cpu, to pick up fixes Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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0ac10d87a5 |
tools arch x86: Sync asm/cpufeatures.h with the with the kernel
To pick up the changes in: |
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b830f94f73 |
tools headers UAPI: Update tools's copy of mman.h headers
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e0d99c4d24 |
tools headers UAPI: Update tools's copy of kvm.h headers
Picking the changes from: |
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be261ffce6 |
x86: Remove X86_FEATURE_MFENCE_RDTSC
AMD and Intel both have serializing lfence (X86_FEATURE_LFENCE_RDTSC). They've both had it for a long time, and AMD has had it enabled in Linux since Spectre v1 was announced. Back then, there was a proposal to remove the serializing mfence feature bit (X86_FEATURE_MFENCE_RDTSC), since both AMD and Intel have serializing lfence. At the time, it was (ahem) speculated that some hypervisors might not yet support its removal, so it remained for the time being. Now a year-and-a-half later, it should be safe to remove. I asked Andrew Cooper about whether it's still needed: So if you're virtualised, you've got no choice in the matter. lfence is either dispatch-serialising or not on AMD, and you won't be able to change it. Furthermore, you can't accurately tell what state the bit is in, because the MSR might not be virtualised at all, or may not reflect the true state in hardware. Worse still, attempting to set the bit may not be successful even if there isn't a fault for doing so. Xen sets the DE_CFG bit unconditionally, as does Linux by the looks of things (see MSR_F10H_DECFG_LFENCE_SERIALIZE_BIT). ISTR other hypervisor vendors saying the same, but I don't have any information to hand. If you are running under a hypervisor which has been updated, then lfence will almost certainly be dispatch-serialising in practice, and you'll almost certainly see the bit already set in DE_CFG. If you're running under a hypervisor which hasn't been patched since Spectre, you've already lost in many more ways. I'd argue that X86_FEATURE_MFENCE_RDTSC is not worth keeping. So remove it. This will reduce some code rot, and also make it easier to hook barrier_nospec() up to a cmdline disable for performance raisins, without having to need an alternative_3() macro. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/d990aa51e40063acb9888e8c1b688e41355a9588.1562255067.git.jpoimboe@redhat.com |
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686cbe9e5d |
tools arch x86: Sync asm/cpufeatures.h with the with the kernel
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c499d1f483 |
tools arch kvm: Sync kvm headers with the kernel sources
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57103eb7c6 |
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar: "Various fixes, most of them related to bugs perf fuzzing found in the x86 code" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/regs: Use PERF_REG_EXTENDED_MASK perf/x86: Remove pmu->pebs_no_xmm_regs perf/x86: Clean up PEBS_XMM_REGS perf/x86/regs: Check reserved bits perf/x86: Disable extended registers for non-supported PMUs perf/ioctl: Add check for the sample_period value perf/core: Fix perf_sample_regs_user() mm check |
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8b12b812f5 |
perf/x86/regs: Use PERF_REG_EXTENDED_MASK
Use the macro defined in kernel ABI header to replace the local name. No functional change. Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Link: https://lkml.kernel.org/r/1559081314-9714-5-git-send-email-kan.liang@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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c884d8ac7f |
SPDX update for 5.2-rc6
Another round of SPDX updates for 5.2-rc6 Here is what I am guessing is going to be the last "big" SPDX update for 5.2. It contains all of the remaining GPLv2 and GPLv2+ updates that were "easy" to determine by pattern matching. The ones after this are going to be a bit more difficult and the people on the spdx list will be discussing them on a case-by-case basis now. Another 5000+ files are fixed up, so our overall totals are: Files checked: 64545 Files with SPDX: 45529 Compared to the 5.1 kernel which was: Files checked: 63848 Files with SPDX: 22576 This is a huge improvement. Also, we deleted another 20000 lines of boilerplate license crud, always nice to see in a diffstat. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXQyQYA8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ymnGQCghETUBotn1p3hTjY56VEs6dGzpHMAnRT0m+lv kbsjBGEJpLbMRB2krnaU =RMcT -----END PGP SIGNATURE----- Merge tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx Pull still more SPDX updates from Greg KH: "Another round of SPDX updates for 5.2-rc6 Here is what I am guessing is going to be the last "big" SPDX update for 5.2. It contains all of the remaining GPLv2 and GPLv2+ updates that were "easy" to determine by pattern matching. The ones after this are going to be a bit more difficult and the people on the spdx list will be discussing them on a case-by-case basis now. Another 5000+ files are fixed up, so our overall totals are: Files checked: 64545 Files with SPDX: 45529 Compared to the 5.1 kernel which was: Files checked: 63848 Files with SPDX: 22576 This is a huge improvement. Also, we deleted another 20000 lines of boilerplate license crud, always nice to see in a diffstat" * tag 'spdx-5.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx: (65 commits) treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 507 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 506 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 504 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 503 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 502 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 501 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 498 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 496 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 495 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 491 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 490 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 489 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 488 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 487 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 486 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 485 ... |