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Linus Torvalds 1423e2660c Fixes and improvements for FPU handling on x86: 
- Prevent sigaltstack out of bounds writes. The kernel unconditionally
     writes the FPU state to the alternate stack without checking whether
     the stack is large enough to accomodate it.
 
     Check the alternate stack size before doing so and in case it's too
     small force a SIGSEGV instead of silently corrupting user space data.
 
   - MINSIGSTKZ and SIGSTKSZ are constants in signal.h and have never been
     updated despite the fact that the FPU state which is stored on the
     signal stack has grown over time which causes trouble in the field
     when AVX512 is available on a CPU. The kernel does not expose the
     minimum requirements for the alternate stack size depending on the
     available and enabled CPU features.
 
     ARM already added an aux vector AT_MINSIGSTKSZ for the same reason.
     Add it to x86 as well
 
   - A major cleanup of the x86 FPU code. The recent discoveries of XSTATE
     related issues unearthed quite some inconsistencies, duplicated code
     and other issues.
 
     The fine granular overhaul addresses this, makes the code more robust
     and maintainable, which allows to integrate upcoming XSTATE related
     features in sane ways.
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Merge tag 'x86-fpu-2021-07-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fpu updates from Thomas Gleixner:
 "Fixes and improvements for FPU handling on x86:

   - Prevent sigaltstack out of bounds writes.

     The kernel unconditionally writes the FPU state to the alternate
     stack without checking whether the stack is large enough to
     accomodate it.

     Check the alternate stack size before doing so and in case it's too
     small force a SIGSEGV instead of silently corrupting user space
     data.

   - MINSIGSTKZ and SIGSTKSZ are constants in signal.h and have never
     been updated despite the fact that the FPU state which is stored on
     the signal stack has grown over time which causes trouble in the
     field when AVX512 is available on a CPU. The kernel does not expose
     the minimum requirements for the alternate stack size depending on
     the available and enabled CPU features.

     ARM already added an aux vector AT_MINSIGSTKSZ for the same reason.
     Add it to x86 as well.

   - A major cleanup of the x86 FPU code. The recent discoveries of
     XSTATE related issues unearthed quite some inconsistencies,
     duplicated code and other issues.

     The fine granular overhaul addresses this, makes the code more
     robust and maintainable, which allows to integrate upcoming XSTATE
     related features in sane ways"

* tag 'x86-fpu-2021-07-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (74 commits)
  x86/fpu/xstate: Clear xstate header in copy_xstate_to_uabi_buf() again
  x86/fpu/signal: Let xrstor handle the features to init
  x86/fpu/signal: Handle #PF in the direct restore path
  x86/fpu: Return proper error codes from user access functions
  x86/fpu/signal: Split out the direct restore code
  x86/fpu/signal: Sanitize copy_user_to_fpregs_zeroing()
  x86/fpu/signal: Sanitize the xstate check on sigframe
  x86/fpu/signal: Remove the legacy alignment check
  x86/fpu/signal: Move initial checks into fpu__restore_sig()
  x86/fpu: Mark init_fpstate __ro_after_init
  x86/pkru: Remove xstate fiddling from write_pkru()
  x86/fpu: Don't store PKRU in xstate in fpu_reset_fpstate()
  x86/fpu: Remove PKRU handling from switch_fpu_finish()
  x86/fpu: Mask PKRU from kernel XRSTOR[S] operations
  x86/fpu: Hook up PKRU into ptrace()
  x86/fpu: Add PKRU storage outside of task XSAVE buffer
  x86/fpu: Dont restore PKRU in fpregs_restore_userspace()
  x86/fpu: Rename xfeatures_mask_user() to xfeatures_mask_uabi()
  x86/fpu: Move FXSAVE_LEAK quirk info __copy_kernel_to_fpregs()
  x86/fpu: Rename __fpregs_load_activate() to fpregs_restore_userregs()
  ...
2021-07-07 11:12:01 -07:00
..
e820 x86/efi: EFI soft reservation to E820 enumeration 2019-11-07 15:44:14 +01:00
fpu x86/fpu: Return proper error codes from user access functions 2021-06-23 20:04:58 +02:00
numachip
trace x86/mm/tlb: Flush remote and local TLBs concurrently 2021-03-06 12:59:10 +01:00
uv x86: Fix various typos in comments 2021-03-18 15:31:53 +01:00
vdso clocksource/drivers/hyper-v: Re-enable VDSO_CLOCKMODE_HVCLOCK on X86 2021-05-14 14:55:13 +02:00
xen Revert "xen: fix p2m size in dom0 for disabled memory hotplug case" 2021-03-24 18:33:36 -05:00
acenv.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
acpi.h x86/mce, cper: Pass x86 CPER through the MCA handling chain 2020-11-21 12:05:41 +01:00
acrn.h x86/acrn: Introduce hypercall interfaces 2021-02-09 10:58:18 +01:00
agp.h x86: Fix various typos in comments, take #2 2021-03-21 23:50:28 +01:00
alternative.h x86/alternatives: Optimize optimize_nops() 2021-04-02 12:41:17 +02:00
amd_nb.h x86/mce/amd: Cleanup threshold device remove path 2020-04-14 15:49:51 +02:00
apic.h x86/apic: Mark _all_ legacy interrupts when IO/APIC is missing 2021-05-29 11:41:14 +02:00
apicdef.h x86/apic: Cleanup delivery mode defines 2020-10-28 20:26:24 +01:00
apm.h
arch_hweight.h x86/kconfig: Disable CONFIG_GENERIC_HWEIGHT and remove __HAVE_ARCH_SW_HWEIGHT 2019-05-13 11:07:33 +02:00
archrandom.h x86/cpu: Use RDRAND and RDSEED mnemonics in archrandom.h 2020-05-18 19:50:47 +02:00
asm-offsets.h
asm-prototypes.h objtool/x86: Rewrite retpoline thunk calls 2021-04-02 12:47:28 +02:00
asm.h x86/asm: Make <asm/asm.h> valid on cross-builds as well 2021-05-14 08:50:28 +02:00
atomic.h locking/atomic: make ARCH_ATOMIC a Kconfig symbol 2021-05-26 13:20:49 +02:00
atomic64_32.h locking/atomics: Flip fallbacks and instrumentation 2020-06-11 08:03:24 +02:00
atomic64_64.h asm-generic/atomic: Add try_cmpxchg() fallbacks 2020-10-12 18:27:27 +02:00
audit.h x86/audit: Fix a -Wmissing-prototypes warning for ia32_classify_syscall() 2020-05-19 18:03:07 +02:00
barrier.h x86/asm: Simplify __smp_mb() definition 2021-05-12 12:22:57 +02:00
bios_ebda.h
bitops.h x86, kcsan: Remove __no_kcsan_or_inline usage 2020-06-15 14:10:08 +02:00
boot.h x86: Add support for ZSTD compressed kernel 2020-07-31 11:49:09 +02:00
bootparam_utils.h x86/boot: Preserve boot_params.secure_boot from sanitizing 2019-09-02 09:17:45 +02:00
bug.h x86: Delete UD0, UD1 traces 2021-05-05 21:50:13 +02:00
bugs.h x86/mpx: remove MPX from arch/x86 2020-01-23 10:41:20 -08:00
cache.h treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
cacheflush.h asm-generic: don't include <linux/mm.h> in cacheflush.h 2020-06-08 11:05:57 -07:00
cacheinfo.h x86/CPU/AMD: Save AMD NodeId as cpu_die_id 2020-11-19 11:43:13 +01:00
ce4100.h
checksum.h unify generic instances of csum_partial_copy_nocheck() 2020-08-20 15:45:14 -04:00
checksum_32.h i386: propagate the calling conventions change down to csum_partial_copy_generic() 2020-08-20 15:45:18 -04:00
checksum_64.h amd64: switch csum_partial_copy_generic() to new calling conventions 2020-08-20 15:45:22 -04:00
clocksource.h x86: Introduce asm/vdso/clocksource.h 2020-03-21 15:23:54 +01:00
cmdline.h
cmpxchg.h x86: Fix various typos in comments 2021-03-18 15:31:53 +01:00
cmpxchg_32.h x86: cmpxchg_32.h: Delete duplicated word 2020-07-26 12:47:22 +02:00
cmpxchg_64.h
compat.h [amd64] clean PRSTATUS_SIZE/SET_PR_FPVALID up properly 2021-01-06 08:40:56 -05:00
cpu.h Perf events changes in this cycle were: 2021-04-28 13:03:44 -07:00
cpu_device_id.h x86/cpu: Add a X86_MATCH_INTEL_FAM6_MODEL_STEPPINGS() macro 2020-05-07 13:48:05 +02:00
cpu_entry_area.h x86/sev-es: Allocate and map an IST stack for #VC handler 2020-09-09 11:33:19 +02:00
cpufeature.h x86/alternative: Use ALTERNATIVE_TERNARY() in _static_cpu_has() 2021-03-11 19:33:43 +01:00
cpufeatures.h x86/msr: Define new bits in TSX_FORCE_ABORT MSR 2021-06-15 17:23:15 +02:00
cpuidle_haltpoll.h cpuidle-haltpoll: vcpu hotplug support 2019-09-03 09:36:36 +02:00
cpumask.h x86/entry, cpumask: Provide non-instrumented variant of cpu_is_offline() 2020-06-15 14:10:09 +02:00
crash.h x86/crash: Remove crash_reserve_low_1M() 2021-06-07 12:14:45 +02:00
current.h
debugreg.h x86/debug: Remove aout_dump_debugregs() 2020-09-04 15:12:55 +02:00
delay.h x86/delay: Introduce TPAUSE delay 2020-05-07 16:06:20 +02:00
desc.h Merge branch 'akpm' (patches from Andrew) 2021-07-02 12:08:10 -07:00
desc_defs.h x86/idt: Make IDT init functions static inlines 2020-09-07 22:44:43 +02:00
device.h x86: Remove dev->archdata.iommu pointer 2020-06-30 11:59:48 +02:00
disabled-features.h x86/cpufeatures: Force disable X86_FEATURE_ENQCMD and remove update_pasid() 2021-06-03 16:33:09 +02:00
div64.h sched/cputime: Improve cputime_adjust() 2020-06-15 14:10:00 +02:00
dma-mapping.h dma-mapping: move dma-debug.h to kernel/dma/ 2020-10-06 07:07:05 +02:00
dma.h x86/dma: Fix max PFN arithmetic overflow on 32 bit systems 2020-05-28 20:21:32 +02:00
dmi.h
doublefault.h x86/32: Remove CONFIG_DOUBLEFAULT 2020-04-14 14:24:05 +02:00
dwarf2.h x86: remove always-defined CONFIG_AS_CFI_SECTIONS 2020-04-09 00:01:59 +09:00
edac.h
efi.h - Have 64-bit kernel code which uses 387 insns request a x87 init 2021-02-20 20:07:44 -08:00
elf.h x86/elf: Support a new ELF aux vector AT_MINSIGSTKSZ 2021-05-19 12:18:45 +02:00
elfcore-compat.h [amd64] clean PRSTATUS_SIZE/SET_PR_FPVALID up properly 2021-01-06 08:40:56 -05:00
emergency-restart.h
emulate_prefix.h x86: xen: kvm: Gather the definition of emulate prefixes 2019-10-17 21:31:57 +02:00
enclu.h x86/vdso: Implement a vDSO for Intel SGX enclave call 2020-11-18 18:02:50 +01:00
entry-common.h x86/entry: Enable random_kstack_offset support 2021-04-08 14:05:20 +02:00
espfix.h
exec.h
extable.h x86/mce: Provide method to find out the type of an exception handler 2020-10-07 11:08:59 +02:00
fb.h
fixmap.h x86/platform/intel-mid: Remove unused leftovers (vRTC) 2021-02-09 15:28:37 +01:00
floppy.h floppy: remove redundant assignment to variable st 2021-04-20 08:59:03 -06:00
frame.h x86/unwind/fp: Fix FP unwinding in ret_from_fork 2020-09-18 09:59:40 +02:00
fsgsbase.h x86/fsgsbase: Replace static_cpu_has() with boot_cpu_has() 2020-08-24 18:18:32 +02:00
ftrace.h livepatch: Use the default ftrace_ops instead of REGS when ARGS is available 2020-11-13 12:15:28 -05:00
futex.h x86: get rid of user_atomic_cmpxchg_inatomic() 2020-03-27 23:58:55 -04:00
gart.h
GEN-for-each-reg.h x86: Simplify retpoline declaration 2020-04-30 20:14:34 +02:00
genapic.h
geode.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206 2019-05-30 11:29:53 -07:00
hardirq.h x86/kvm/vmx: Move guest enter/exit into .noinstr.text 2020-07-09 07:08:40 -04:00
highmem.h x86/mm/highmem: Use generic kmap atomic implementation 2020-11-06 23:14:55 +01:00
hpet.h x86/hpet: Move MSI support into hpet.c 2020-10-28 20:26:25 +01:00
hugetlb.h mm/hugetlb: define a generic fallback for arch_clear_hugepage_flags() 2020-06-03 20:09:46 -07:00
hw_breakpoint.h
hw_irq.h iommu/amd: Fix IOMMU interrupt generation in X2APIC mode 2020-11-18 20:55:59 +01:00
hyperv-tlfs.h hyperv: SVM enlightened TLB flush support flag 2021-06-17 13:09:36 -04:00
hypervisor.h x86/paravirt: Remove const mark from x86_hyper_xen_hvm variable 2019-07-17 08:09:59 +02:00
i8259.h
ia32.h
ia32_unistd.h
idtentry.h X86 interrupt related changes: 2021-06-29 12:36:59 -07:00
imr.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
inat.h x86/insn: Add a __ignore_sync_check__ marker 2021-03-15 11:00:57 +01:00
inat_types.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
init.h
insn-eval.h x86/insn: Rename insn_decode() to insn_decode_from_regs() 2021-03-15 10:53:10 +01:00
insn.h x86: Add insn_decode_kernel() 2021-03-31 16:20:22 +02:00
inst.h x86/asm: Drop unused RDPID macro 2020-11-26 12:58:56 +01:00
intel-family.h x86/cpu: Fix core name for Sapphire Rapids 2021-05-14 14:31:14 +02:00
intel-mid.h x86/platform/intel-mid: Update Copyright year and drop file names 2021-02-15 20:10:30 +01:00
intel_ds.h perf/x86/intel: Add Icelake support 2019-04-16 12:26:18 +02:00
intel_pconfig.h x86: Fix various typos in comments 2021-03-18 15:31:53 +01:00
intel_pt.h x86: Fix various typos in comments, take #2 2021-03-21 23:50:28 +01:00
intel_punit_ipc.h
intel_scu_ipc.h x86/platform/intel-mid: Get rid of intel_scu_ipc_legacy.h 2021-02-15 20:10:30 +01:00
intel_telemetry.h platform/x86: intel_pmc_ipc: Convert to MFD 2020-04-24 11:18:44 +01:00
invpcid.h x86/cpu: Use INVPCID mnemonic in invpcid.h 2020-05-12 16:05:30 +02:00
io.h x86: Fix various typos in comments 2021-03-18 15:31:53 +01:00
io_apic.h x86/ioapic: Handle Extended Destination ID field in RTE 2020-10-28 20:26:28 +01:00
io_bitmap.h x86/ioperm: Fix io bitmap invalidation on Xen PV 2020-07-18 12:31:49 +02:00
iomap.h io-mapping: Cleanup atomic iomap 2020-11-06 23:14:58 +01:00
iommu.h iommu/vt-d: Check VT-d RMRR region in BIOS is reported as reserved 2019-11-11 16:06:07 +01:00
iommu_table.h
iosf_mbi.h media: atomisp: move CCK endpoint address to generic header 2020-07-18 07:17:16 +02:00
irq.h Rework of the X86 irq stack handling: 2021-02-24 16:32:23 -08:00
irq_remapping.h x86: Kill all traces of irq_remapping_get_irq_domain() 2020-10-28 20:26:28 +01:00
irq_stack.h x86: Fix various typos in comments 2021-03-18 15:31:53 +01:00
irq_vectors.h x86/irq: Add and use NR_EXTERNAL_VECTORS and NR_SYSTEM_VECTORS 2021-05-21 12:36:44 +02:00
irq_work.h x86/entry: Convert various system vectors 2020-06-11 15:15:14 +02:00
irqdomain.h x86/apic: Add select() method on vector irqdomain 2020-10-28 20:26:27 +01:00
irqflags.h x86/paravirt: Switch functions with custom code to ALTERNATIVE 2021-03-11 20:07:01 +01:00
ist.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 118 2019-05-24 17:39:02 +02:00
jailhouse_para.h
jump_label.h jump_label, x86: Allow short NOPs 2021-05-12 14:54:56 +02:00
kasan.h
kaslr.h x86/mm: simplify init_trampoline() and surrounding logic 2020-06-09 09:39:13 -07:00
kbdleds.h
Kbuild x86/syscalls: Switch to generic syscalltbl.sh 2021-05-20 15:03:58 +02:00
kdebug.h x86/dumpstack: Add log_lvl to __show_regs() 2020-07-22 23:56:53 +02:00
kexec-bzimage64.h
kexec.h x86: Use ELF fields defined in 'struct kimage' 2021-03-08 12:06:29 -07:00
kfence.h kfence, x86: fix preemptible warning on KPTI-enabled systems 2021-04-09 14:54:23 -07:00
kgdb.h
kprobes.h x86/kprobes: Use int3 instead of debug trap for single-step 2021-03-23 16:07:56 +01:00
kvm-x86-ops.h KVM: x86: Drop "pre_" from enter/leave_smm() helpers 2021-06-17 13:09:35 -04:00
kvm_host.h KVM: x86: rename apic_access_page_done to apic_access_memslot_enabled 2021-06-24 18:00:49 -04:00
kvm_page_track.h KVM: Simplify kvm_free_memslot() and all its descendents 2020-03-16 17:57:22 +01:00
kvm_para.h x86/kvm: Disable all PV features on crash 2021-05-07 06:06:10 -04:00
kvm_types.h KVM: Move x86's version of struct kvm_mmu_memory_cache to common code 2020-07-09 13:29:42 -04:00
kvm_vcpu_regs.h
kvmclock.h
linkage.h x86/asm: Remove the last GLOBAL user and remove the macro 2019-10-18 11:29:50 +02:00
livepatch.h livepatch: Use the default ftrace_ops instead of REGS when ARGS is available 2020-11-13 12:15:28 -05:00
local.h
mach_timer.h
mach_traps.h
math_emu.h
mc146818rtc.h
mce.h x86/MCE/AMD, EDAC/mce_amd: Add new SMCA bank types 2021-05-27 20:08:14 +02:00
mem_encrypt.h x86/sev: Drop redundant and potentially misleading 'sev_enabled' 2021-04-26 05:27:14 -04:00
memtype.h x86/mm: Move pgprot2cachemode out of line 2020-04-20 12:39:17 +02:00
microcode.h x86/microcode: Make microcode_init() static 2020-12-31 11:44:00 +01:00
microcode_amd.h x86/microcode/AMD: Increase microcode PATCH_MAX_SIZE 2020-04-14 17:34:46 +02:00
microcode_intel.h
misc.h
mmconfig.h
mmu.h x86/mm: Convert mmu context ia32_compat into a proper flags field 2020-10-26 13:46:47 +01:00
mmu_context.h asm-generic: mmu-context cleanup 2020-12-15 23:58:04 -08:00
mmx.h
mmzone.h
mmzone_32.h x86/mm: Drop deprecated DISCONTIGMEM support for 32-bit 2020-05-28 18:34:30 +02:00
mmzone_64.h
module.h arch: split MODULE_ARCH_VERMAGIC definitions out to <asm/vermagic.h> 2020-04-23 10:50:26 +09:00
mpspec.h x86/init: Remove unused init ops 2020-09-16 16:52:28 +02:00
mpspec_def.h
mshyperv.h drivers: hv: Create a consistent pattern for checking Hyper-V hypercall status 2021-04-21 09:49:19 +00:00
msi.h x86/apic: Support 15 bits of APIC ID in MSI where available 2020-10-28 20:26:29 +01:00
msr-index.h - New AMD models support 2021-06-28 11:22:40 -07:00
msr-trace.h
msr.h x86/cpu: Remove write_tsc() and write_rdtscp_aux() wrappers 2021-05-05 21:50:14 +02:00
mtrr.h x86/mm/pat: Rename <asm/pat.h> => <asm/memtype.h> 2019-12-10 10:12:55 +01:00
mwait.h sched/idle: Fix arch_cpu_idle() vs tracing 2020-11-24 16:47:35 +01:00
nmi.h arch: x86: Remove CONFIG_OPROFILE support 2021-01-29 10:05:51 +05:30
nops.h x86/asm: Use _ASM_BYTES() in <asm/nops.h> 2021-05-10 12:33:28 +02:00
nospec-branch.h - turn the stack canary into a normal __percpu variable on 32-bit which 2021-04-27 17:45:09 -07:00
numa.h ACPI updates for 5.10-rc1 2020-10-14 11:42:04 -07:00
numa_32.h
olpc.h Platform: OLPC: Move EC-specific functionality out from x86 2019-05-20 17:27:08 +03:00
olpc_ofw.h
orc_lookup.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
orc_types.h objtool: Fix x86 orc generation on big endian cross-compiles 2021-01-13 18:13:13 -06:00
page.h mm: arch: remove indirection level in alloc_zeroed_user_highpage_movable() 2021-06-04 19:32:21 +01:00
page_32.h
page_32_types.h x86/build: Fix vmlinux size check on 64-bit 2020-10-29 21:54:35 +01:00
page_64.h x86: Always inline task_size_max() 2021-06-22 13:56:43 +02:00
page_64_types.h x86/cpu: Use alternative to generate the TASK_SIZE_MAX constant 2021-05-05 08:52:31 +02:00
page_types.h x86/mm: thread pgprot_t through init_memory_mapping() 2020-04-10 15:36:21 -07:00
paravirt.h The x86 MM changes in this cycle were: 2021-04-29 11:41:43 -07:00
paravirt_types.h The x86 MM changes in this cycle were: 2021-04-29 11:41:43 -07:00
parport.h
pci-direct.h
pci-functions.h
pci.h x86/irq: Cleanup the arch_*_msi_irqs() leftovers 2020-09-16 16:52:38 +02:00
pci_x86.h x86/pci: Reducde #ifdeffery in PCI init code 2020-09-16 16:52:35 +02:00
percpu.h x86/percpu: Remove unused PER_CPU() macro 2020-07-23 11:46:43 +02:00
perf_event.h perf/x86: Reset the dirty counter to prevent the leak for an RDPMC task 2021-06-17 14:11:47 +02:00
perf_event_p4.h
pgalloc.h mm/thp: define default pmd_pgtable() 2021-07-01 11:06:03 -07:00
pgtable-2level.h
pgtable-2level_types.h x86/mm/32: implement arch_sync_kernel_mappings() 2020-06-02 10:59:11 -07:00
pgtable-3level.h mmap locking API: convert mmap_sem comments 2020-06-09 09:39:14 -07:00
pgtable-3level_types.h x86/paravirt: Remove 32-bit support from CONFIG_PARAVIRT_XXL 2020-08-15 13:52:11 +02:00
pgtable-invert.h
pgtable.h x86/pkeys: Move read_pkru() and write_pkru() 2021-06-23 18:52:57 +02:00
pgtable_32.h x86/build: Fix vmlinux size check on 64-bit 2020-10-29 21:54:35 +01:00
pgtable_32_areas.h mm, x86/mm: Untangle address space layout definitions from basic pgtable type definitions 2019-12-10 10:12:55 +01:00
pgtable_32_types.h mm, x86/mm: Untangle address space layout definitions from basic pgtable type definitions 2019-12-10 10:12:55 +01:00
pgtable_64.h The biggest change is to not sync the vmalloc and ioremap ranges for x86-64 anymore. 2020-08-03 17:25:42 -07:00
pgtable_64_types.h x86: Support kmap_local() forced debugging 2020-11-24 14:42:09 +01:00
pgtable_areas.h mm, x86/mm: Untangle address space layout definitions from basic pgtable type definitions 2019-12-10 10:12:55 +01:00
pgtable_types.h mm: define default value for FIRST_USER_ADDRESS 2021-07-01 11:06:02 -07:00
pkeys.h x86/fpu: Use pkru_write_default() in copy_init_fpstate_to_fpregs() 2021-06-23 19:15:16 +02:00
pkru.h x86/pkru: Remove xstate fiddling from write_pkru() 2021-06-23 19:55:51 +02:00
platform_sst_audio.h sfi: Remove framework for deprecated firmware 2021-02-15 20:09:46 +01:00
pm-trace.h
posix_types.h
preempt.h sched/core: Initialize the idle task with preemption disabled 2021-05-12 13:01:45 +02:00
probe_roms.h
processor-cyrix.h
processor-flags.h
processor.h Fixes and improvements for FPU handling on x86: 2021-07-07 11:12:01 -07:00
prom.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
proto.h x86/asm: Ensure asm/proto.h can be included stand-alone 2021-04-12 13:12:46 +02:00
pti.h x86: Use the correct SPDX License Identifier in headers 2019-10-01 20:31:35 +02:00
ptrace.h Linux 5.12-rc3 2021-03-15 10:49:00 +01:00
purgatory.h x86/kdump: Remove the backup region handling 2019-11-14 18:24:43 +01:00
pvclock-abi.h
pvclock.h x86/vdso: Switch to generic vDSO implementation 2019-06-22 21:21:10 +02:00
qrwlock.h
qspinlock.h x86/kvm: Add "nopvspin" parameter to disable PV spinlocks 2020-07-08 16:21:57 -04:00
qspinlock_paravirt.h
realmode.h x86/head/64: Don't call verify_cpu() on starting APs 2020-09-09 11:33:20 +02:00
reboot.h
reboot_fixups.h
required-features.h x86/cpufeatures: Assign dedicated feature word for CPUID_0x8000001F[EAX] 2021-01-28 17:41:24 +01:00
resctrl.h x86/resctrl: Apply READ_ONCE/WRITE_ONCE to task_struct.{rmid,closid} 2021-01-11 11:43:23 +01:00
rmwcc.h
seccomp.h x86: Enable seccomp architecture tracking 2020-11-20 11:16:34 -08:00
sections.h x86/setup: Fix static memory detection 2020-03-19 11:58:13 +01:00
segment.h x86/stackprotector/32: Make the canary into a regular percpu variable 2021-03-08 13:19:05 +01:00
serial.h
set_memory.h x86: Fix various typos in comments, take #2 2021-03-21 23:50:28 +01:00
setup.h x86/setup: Remove unused RESERVE_BRK_ARRAY() 2021-03-11 11:47:37 +01:00
setup_arch.h
sev-common.h x86/sev: Add defines for GHCB version 2 MSR protocol requests 2021-06-23 11:25:17 +02:00
sev.h x86/sev: Move GHCB MSR protocol and NAE definitions in a common header 2021-05-10 07:46:39 +02:00
sgx.h x86: Fix leftover comment typos 2021-05-12 20:00:51 +02:00
shmparam.h
sigcontext.h
sigframe.h x86/signal: Introduce helpers to get the maximum signal frame size 2021-05-19 11:46:27 +02:00
sighandling.h Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2020-03-31 11:04:05 -07:00
signal.h x86/entry: Use generic syscall exit functionality 2020-07-24 15:04:59 +02:00
simd.h
smap.h First big cleanup to the paravirt infra to use alternatives and thus 2021-04-26 09:01:29 -07:00
smp.h ACPI: processor: Fix build when CONFIG_ACPI_PROCESSOR=m 2021-04-07 19:02:43 +02:00
softirq_stack.h x86/softirq/64: Inline do_softirq_own_stack() 2021-02-10 23:34:17 +01:00
sparsemem.h mm: fix phys_to_target_node() and memory_add_physaddr_to_nid() exports 2020-11-22 10:48:22 -08:00
spec-ctrl.h
special_insns.h x86/pkru: Remove xstate fiddling from write_pkru() 2021-06-23 19:55:51 +02:00
spinlock.h
spinlock_types.h x86/spinlock: Remove obsolete ticket spinlock macros and types 2020-05-28 21:18:40 +02:00
sta2x11.h
stackprotector.h x86: Fix leftover comment typos 2021-05-12 20:00:51 +02:00
stacktrace.h x86/dumpstack: Make show_trace_log_lvl() static 2020-11-17 19:05:32 +01:00
static_call.h static_call: Allow module use without exposing static_call_key 2021-02-17 14:12:42 +01:00
string.h
string_32.h
string_64.h x86, powerpc: Rename memcpy_mcsafe() to copy_mc_to_{user, kernel}() 2020-10-06 11:18:04 +02:00
suspend.h
suspend_32.h x86/stackprotector/32: Make the canary into a regular percpu variable 2021-03-08 13:19:05 +01:00
suspend_64.h x86/paravirt: Drop {read,write}_cr8() hooks 2019-07-22 10:12:33 +02:00
svm.h KVM: SVM: Software reserved fields 2021-06-17 13:09:37 -04:00
swiotlb.h
switch_to.h x86/process/64: Move cpu_current_top_of_stack out of TSS 2021-03-28 22:40:10 +02:00
sync_bitops.h x86/asm: Modernize sync_bitops.h 2019-04-10 09:53:31 +02:00
sync_core.h x86/membarrier: Get rid of a dubious optimization 2020-12-09 09:37:42 +01:00
syscall.h x86/entry: Use int everywhere for system call numbers 2021-05-25 10:07:00 +02:00
syscall_wrapper.h x86/entry/x32: Rename __x32_compat_sys_* to __x64_compat_sys_* 2021-05-20 15:03:58 +02:00
syscalls.h x86: Remove unneeded includes 2020-03-21 16:03:25 +01:00
sysfb.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
text-patching.h x86/alternatives: Teach text_poke_bp() to emulate RET 2020-09-01 09:58:05 +02:00
thermal.h x86/thermal: Fix LVT thermal setup for SMI delivery mode 2021-05-31 22:32:26 +02:00
thread_info.h x86/process/64: Move cpu_current_top_of_stack out of TSS 2021-03-28 22:40:10 +02:00
time.h x86/timer: Skip PIT initialization on modern chipsets 2019-06-29 11:35:35 +02:00
timer.h
timex.h
tlb.h tlb: arch: Remove empty __tlb_remove_tlb_entry() stubs 2021-01-29 20:02:29 +01:00
tlbbatch.h
tlbflush.h x86/mm/tlb: Privatize cpu_tlbstate 2021-03-06 12:59:10 +01:00
topology.h x86/topology: Make __max_die_per_package available unconditionally 2021-01-14 12:18:36 +01:00
trace_clock.h
trap_pf.h x86/mm: Signal SIGSEGV with PF_SGX 2020-11-17 14:36:13 +01:00
trapnr.h x86/boot/compressed/64: Add stage1 #VC handler 2020-09-07 19:45:25 +02:00
traps.h This feature enhances the current guest memory encryption support 2020-10-14 10:21:34 -07:00
tsc.h A set of locking fixes and updates: 2020-08-10 19:07:44 -07:00
uaccess.h x86/uaccess: fix code generation in put_user() 2020-10-23 13:44:24 -07:00
uaccess_32.h x86: get rid of small constant size cases in raw_copy_{to,from}_user() 2020-03-18 15:53:25 -04:00
uaccess_64.h x86, powerpc: Rename memcpy_mcsafe() to copy_mc_to_{user, kernel}() 2020-10-06 11:18:04 +02:00
umip.h x86/Kconfig: Rename UMIP config parameter 2019-11-07 11:07:29 +01:00
unistd.h x86/syscalls: Use __NR_syscalls instead of __NR_syscall_max 2021-05-20 15:03:59 +02:00
unwind.h x86/unwind/orc: Fix premature unwind stoppage due to IRET frames 2020-04-25 12:22:29 +02:00
unwind_hints.h objtool: Combine UNWIND_HINT_RET_OFFSET and UNWIND_HINT_FUNC 2021-01-26 11:12:00 -06:00
uprobes.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
user.h
user32.h
user_32.h
user_64.h
vdso.h A set of updates for entry/exit handling: 2020-12-14 17:13:53 -08:00
vermagic.h arch: split MODULE_ARCH_VERMAGIC definitions out to <asm/vermagic.h> 2020-04-23 10:50:26 +09:00
vga.h
vgtod.h um: Fix header inclusion 2020-03-23 18:45:14 +01:00
virtext.h KVM: VMX: Use the kernel's version of VMXOFF 2021-02-04 05:27:33 -05:00
vm86.h x86/vm86/32: Remove VM86_SCREEN_BITMAP support 2021-01-21 20:08:53 +01:00
vmalloc.h mm/vmalloc: provide fallback arch huge vmap support functions 2021-04-30 11:20:40 -07:00
vmware.h x86/cpu/vmware: Fix platform detection VMWARE_PORT macro 2019-10-22 00:51:44 +02:00
vmx.h KVM: VMX: Add basic handling of VM-Exit from SGX enclave 2021-04-20 04:18:54 -04:00
vmxfeatures.h KVM: VMX: Enable bus lock VM exit 2021-02-04 05:27:21 -05:00
vsyscall.h x86/vsyscall: Show something useful on a read fault 2019-06-28 00:04:39 +02:00
vvar.h x86/vdso: Add time napespace page 2020-01-14 12:20:58 +01:00
word-at-a-time.h
x86_init.h x86/apic: Support 15 bits of APIC ID in MSI where available 2020-10-28 20:26:29 +01:00
xor.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 47 2019-05-24 17:27:13 +02:00
xor_32.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 47 2019-05-24 17:27:13 +02:00
xor_64.h
xor_avx.h x86: remove always-defined CONFIG_AS_AVX 2020-04-09 00:01:59 +09:00