Commit graph

23546 commits

Author SHA1 Message Date
Jakub Kicinski
b3c588cd55 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
drivers/net/ipa/ipa_interrupt.c
drivers/net/ipa/ipa_interrupt.h
  9ec9b2a308 ("net: ipa: disable ipa interrupt during suspend")
  8e461e1f09 ("net: ipa: introduce ipa_interrupt_enable()")
  d50ed35587 ("net: ipa: enable IPA interrupt handlers separate from registration")
https://lore.kernel.org/all/20230119114125.5182c7ab@canb.auug.org.au/
https://lore.kernel.org/all/79e46152-8043-a512-79d9-c3b905462774@tessares.net/

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-01-20 12:28:23 -08:00
Clark Wang
c897dc7f3a arm64: dts: imx93-11x11-evk: enable fec function
Enable FEC function for imx93-11x11-evk board.

Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-01-18 12:47:40 +00:00
Clark Wang
1b110dd678 arm64: dts: imx93-11x11-evk: enable eqos
Enable EQoS function for imx93-11x11-evk board.

Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-01-18 12:47:40 +00:00
Clark Wang
eaaf471085 arm64: dts: imx93: add FEC support
Add FEC node for imx93 platform.

Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-01-18 12:47:40 +00:00
Clark Wang
1f4263ea6a arm64: dts: imx93: add eqos support
Add EQoS node for imx93 platform.

Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-01-18 12:47:40 +00:00
Linus Torvalds
92783a90bc ARM:
* Fix the PMCR_EL0 reset value after the PMU rework
 
 * Correctly handle S2 fault triggered by a S1 page table walk
   by not always classifying it as a write, as this breaks on
   R/O memslots
 
 * Document why we cannot exit with KVM_EXIT_MMIO when taking
   a write fault from a S1 PTW on a R/O memslot
 
 * Put the Apple M2 on the naughty list for not being able to
   correctly implement the vgic SEIS feature, just like the M1
   before it
 
 * Reviewer updates: Alex is stepping down, replaced by Zenghui
 
 x86:
 
 * Fix various rare locking issues in Xen emulation and teach lockdep
   to detect them
 
 * Documentation improvements
 
 * Do not return host topology information from KVM_GET_SUPPORTED_CPUID
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "ARM:

   - Fix the PMCR_EL0 reset value after the PMU rework

   - Correctly handle S2 fault triggered by a S1 page table walk by not
     always classifying it as a write, as this breaks on R/O memslots

   - Document why we cannot exit with KVM_EXIT_MMIO when taking a write
     fault from a S1 PTW on a R/O memslot

   - Put the Apple M2 on the naughty list for not being able to
     correctly implement the vgic SEIS feature, just like the M1 before
     it

   - Reviewer updates: Alex is stepping down, replaced by Zenghui

  x86:

   - Fix various rare locking issues in Xen emulation and teach lockdep
     to detect them

   - Documentation improvements

   - Do not return host topology information from KVM_GET_SUPPORTED_CPUID"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86/xen: Avoid deadlock by adding kvm->arch.xen.xen_lock leaf node lock
  KVM: Ensure lockdep knows about kvm->lock vs. vcpu->mutex ordering rule
  KVM: x86/xen: Fix potential deadlock in kvm_xen_update_runstate_guest()
  KVM: x86/xen: Fix lockdep warning on "recursive" gpc locking
  Documentation: kvm: fix SRCU locking order docs
  KVM: x86: Do not return host topology information from KVM_GET_SUPPORTED_CPUID
  KVM: nSVM: clarify recalc_intercepts() wrt CR8
  MAINTAINERS: Remove myself as a KVM/arm64 reviewer
  MAINTAINERS: Add Zenghui Yu as a KVM/arm64 reviewer
  KVM: arm64: vgic: Add Apple M2 cpus to the list of broken SEIS implementations
  KVM: arm64: Convert FSC_* over to ESR_ELx_FSC_*
  KVM: arm64: Document the behaviour of S1PTW faults on RO memslots
  KVM: arm64: Fix S1PTW handling on RO memslots
  KVM: arm64: PMU: Fix PMCR_EL0 reset value
2023-01-13 14:41:50 -06:00
Linus Torvalds
0bf913e07b First batch of EFI fixes for v6.2:
- avoid a potential crash on the efi_subsys_init() error path
 - use more appropriate error code for runtime services calls issued
   after a crash in the firmware occurred
 - avoid READ_ONCE() for accessing firmware tables that may appear
   misaligned in memory
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Merge tag 'efi-fixes-for-v6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi

Pull EFI fixes from Ard Biesheuvel:

 - avoid a potential crash on the efi_subsys_init() error path

 - use more appropriate error code for runtime services calls issued
   after a crash in the firmware occurred

 - avoid READ_ONCE() for accessing firmware tables that may appear
   misaligned in memory

* tag 'efi-fixes-for-v6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
  efi: tpm: Avoid READ_ONCE() for accessing the event log
  efi: rt-wrapper: Add missing include
  efi: fix userspace infinite retry read efivars after EFI runtime services page fault
  efi: fix NULL-deref in init error path
2023-01-13 10:37:10 -06:00
Linus Torvalds
d45b832d6f arm64 fixes for -rc4
- Fix PAGE_TABLE_CHECK failures on hugepage splitting path
 
 - Fix PSCI encoding of MEM_PROTECT_RANGE function in UAPI header
 
 - Fix NULL deref when accessing debugfs node if PSCI is not present
 
 - Fix MTE core dumping when VMA list is being updated concurrently
 
 - Fix SME signal frame handling when SVE is not implemented by the CPU
 
 - Fix asm constraints for cmpxchg_double() to hazard both words
 
 - Fix build failure with stack tracer and older versions of Clang
 
 - Bring back workaround for Cortex-A715 erratum 2645198
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "Here's a sizeable batch of Friday the 13th arm64 fixes for -rc4. What
  could possibly go wrong?

  The obvious reason we have so much here is because of the holiday
  season right after the merge window, but we've also brought back an
  erratum workaround that was previously dropped at the last minute and
  there's an MTE coredumping fix that strays outside of the arch/arm64
  directory.

  Summary:

   - Fix PAGE_TABLE_CHECK failures on hugepage splitting path

   - Fix PSCI encoding of MEM_PROTECT_RANGE function in UAPI header

   - Fix NULL deref when accessing debugfs node if PSCI is not present

   - Fix MTE core dumping when VMA list is being updated concurrently

   - Fix SME signal frame handling when SVE is not implemented by the
     CPU

   - Fix asm constraints for cmpxchg_double() to hazard both words

   - Fix build failure with stack tracer and older versions of Clang

   - Bring back workaround for Cortex-A715 erratum 2645198"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: Fix build with CC=clang, CONFIG_FTRACE=y and CONFIG_STACK_TRACER=y
  arm64/mm: Define dummy pud_user_exec() when using 2-level page-table
  arm64: errata: Workaround possible Cortex-A715 [ESR|FAR]_ELx corruption
  firmware/psci: Don't register with debugfs if PSCI isn't available
  firmware/psci: Fix MEM_PROTECT_RANGE function numbers
  arm64/signal: Always allocate SVE signal frames on SME only systems
  arm64/signal: Always accept SVE signal frames on SME only systems
  arm64/sme: Fix context switch for SME only systems
  arm64: cmpxchg_double*: hazard against entire exchange variable
  arm64/uprobes: change the uprobe_opcode_t typedef to fix the sparse warning
  arm64: mte: Avoid the racy walk of the vma list during core dump
  elfcore: Add a cprm parameter to elf_core_extra_{phdrs,data_size}
  arm64: mte: Fix double-freeing of the temporary tag storage during coredump
  arm64: ptrace: Use ARM64_SME to guard the SME register enumerations
  arm64/mm: add pud_user_exec() check in pud_user_accessible_page()
  arm64/mm: fix incorrect file_map_count for invalid pmd
2023-01-13 07:11:45 -06:00
Paolo Bonzini
71d0393576 KVM/arm64 fixes for 6.2, take #1
- Fix the PMCR_EL0 reset value after the PMU rework
 
 - Correctly handle S2 fault triggered by a S1 page table walk
   by not always classifying it as a write, as this breaks on
   R/O memslots
 
 - Document why we cannot exit with KVM_EXIT_MMIO when taking
   a write fault from a S1 PTW on a R/O memslot
 
 - Put the Apple M2 on the naughty step for not being able to
   correctly implement the vgic SEIS feature, just liek the M1
   before it
 
 - Reviewer updates: Alex is stepping down, replaced by Zenghui
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Merge tag 'kvmarm-fixes-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into kvm-master

KVM/arm64 fixes for 6.2, take #1

- Fix the PMCR_EL0 reset value after the PMU rework

- Correctly handle S2 fault triggered by a S1 page table walk
  by not always classifying it as a write, as this breaks on
  R/O memslots

- Document why we cannot exit with KVM_EXIT_MMIO when taking
  a write fault from a S1 PTW on a R/O memslot

- Put the Apple M2 on the naughty step for not being able to
  correctly implement the vgic SEIS feature, just liek the M1
  before it

- Reviewer updates: Alex is stepping down, replaced by Zenghui
2023-01-11 13:31:53 -05:00
James Clark
68a63a412d arm64: Fix build with CC=clang, CONFIG_FTRACE=y and CONFIG_STACK_TRACER=y
commit 45bd895180 ("arm64: Improve HAVE_DYNAMIC_FTRACE_WITH_REGS
selection for clang") fixed the build with the above combination by
splitting HAVE_DYNAMIC_FTRACE_WITH_REGS into separate checks for
Clang and GCC.

commit 26299b3f6b ("ftrace: arm64: move from REGS to ARGS") added the
GCC only check "-fpatchable-function-entry=2" back in unconditionally
which breaks the build.

Remove the unconditional check, because the conditional ones were also
updated to _ARGS in the above commit, so they work correctly on their
own.

Fixes: 26299b3f6b ("ftrace: arm64: move from REGS to ARGS")
Signed-off-by: James Clark <james.clark@arm.com>
Link: https://lore.kernel.org/r/20230109122744.1904852-1-james.clark@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
2023-01-09 15:59:42 +00:00
Will Deacon
4e4ff23a35 arm64/mm: Define dummy pud_user_exec() when using 2-level page-table
With only two levels of page-table, the generic 'pud_*' macros are
implemented using dummy operations in pgtable-nopmd.h. Since commit
730a11f982 ("arm64/mm: add pud_user_exec() check in
pud_user_accessible_page()"), pud_user_accessible_page() unconditionally
calls pud_user_exec(), which is an arm64-specific helper and therefore
isn't defined by pgtable-nopmd.h. This results in a build failure for
configurations with only two levels of page table:

   arch/arm64/include/asm/pgtable.h: In function 'pud_user_accessible_page':
>> arch/arm64/include/asm/pgtable.h:870:51: error: implicit declaration of function 'pud_user_exec'; did you mean 'pmd_user_exec'? [-Werror=implicit-function-declaration]
     870 |         return pud_leaf(pud) && (pud_user(pud) || pud_user_exec(pud));
         |                                                   ^~~~~~~~~~~~~
         |                                                   pmd_user_exec

Fix the problem by defining pud_user_exec() as pud_user() in this case.

Link: https://lore.kernel.org/r/202301080515.z6zEksU4-lkp@intel.com
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Will Deacon <will@kernel.org>
2023-01-09 15:47:25 +00:00
Ard Biesheuvel
18bba1843f efi: rt-wrapper: Add missing include
Add the missing #include of asm/assembler.h, which is where the ldr_l
macro is defined.

Fixes: ff7a167961 ("arm64: efi: Execute runtime services from a dedicated stack")
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2023-01-09 12:42:56 +01:00
Anshuman Khandual
5db568e748 arm64: errata: Workaround possible Cortex-A715 [ESR|FAR]_ELx corruption
If a Cortex-A715 cpu sees a page mapping permissions change from executable
to non-executable, it may corrupt the ESR_ELx and FAR_ELx registers, on the
next instruction abort caused by permission fault.

Only user-space does executable to non-executable permission transition via
mprotect() system call which calls ptep_modify_prot_start() and ptep_modify
_prot_commit() helpers, while changing the page mapping. The platform code
can override these helpers via __HAVE_ARCH_PTEP_MODIFY_PROT_TRANSACTION.

Work around the problem via doing a break-before-make TLB invalidation, for
all executable user space mappings, that go through mprotect() system call.
This overrides ptep_modify_prot_start() and ptep_modify_prot_commit(), via
defining HAVE_ARCH_PTEP_MODIFY_PROT_TRANSACTION on the platform thus giving
an opportunity to intercept user space exec mappings, and do the necessary
TLB invalidation. Similar interceptions are also implemented for HugeTLB.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/20230102061651.34745-1-anshuman.khandual@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
2023-01-06 17:14:55 +00:00
Mark Brown
f26cd73721 arm64/signal: Always allocate SVE signal frames on SME only systems
Currently we only allocate space for SVE signal frames on systems that
support SVE, meaning that SME only systems do not allocate a signal frame
for streaming mode SVE state. Change the check so space is allocated if
either feature is supported.

Fixes: 85ed24dad2 ("arm64/sme: Implement streaming SVE signal handling")
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20221223-arm64-fix-sme-only-v1-3-938d663f69e5@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
2023-01-05 15:31:18 +00:00
Mark Brown
7dde62f068 arm64/signal: Always accept SVE signal frames on SME only systems
Currently we reject an attempt to restore a SVE signal frame on a system
with SME but not SVE supported. This means that it is not possible to
disable streaming mode via signal return as this is configured via the
flags in the SVE signal context. Instead accept the signal frame, we will
require it to have a vector length of 0 specified and no payload since the
task will have no SVE vector length configured.

Fixes: 85ed24dad2 ("arm64/sme: Implement streaming SVE signal handling")
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20221223-arm64-fix-sme-only-v1-2-938d663f69e5@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
2023-01-05 15:31:18 +00:00
Mark Brown
0cab5b4964 arm64/sme: Fix context switch for SME only systems
When refactoring fpsimd_load() to support keeping SVE enabled over syscalls
support for systems with SME but not SVE was broken. The code that selects
between loading regular FPSIMD and SVE states was guarded by using
system_supports_sve() but is also needed to handle the streaming SVE state
in SME only systems where that check will be false. Fix this by also
checking for system_supports_sme().

Fixes: a0136be443 ("arm64/fpsimd: Load FP state based on recorded data type")
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20221223-arm64-fix-sme-only-v1-1-938d663f69e5@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
2023-01-05 15:31:18 +00:00
Mark Rutland
031af50045 arm64: cmpxchg_double*: hazard against entire exchange variable
The inline assembly for arm64's cmpxchg_double*() implementations use a
+Q constraint to hazard against other accesses to the memory location
being exchanged. However, the pointer passed to the constraint is a
pointer to unsigned long, and thus the hazard only applies to the first
8 bytes of the location.

GCC can take advantage of this, assuming that other portions of the
location are unchanged, leading to a number of potential problems.

This is similar to what we fixed back in commit:

  fee960bed5 ("arm64: xchg: hazard against entire exchange variable")

... but we forgot to adjust cmpxchg_double*() similarly at the same
time.

The same problem applies, as demonstrated with the following test:

| struct big {
|         u64 lo, hi;
| } __aligned(128);
|
| unsigned long foo(struct big *b)
| {
|         u64 hi_old, hi_new;
|
|         hi_old = b->hi;
|         cmpxchg_double_local(&b->lo, &b->hi, 0x12, 0x34, 0x56, 0x78);
|         hi_new = b->hi;
|
|         return hi_old ^ hi_new;
| }

... which GCC 12.1.0 compiles as:

| 0000000000000000 <foo>:
|    0:   d503233f        paciasp
|    4:   aa0003e4        mov     x4, x0
|    8:   1400000e        b       40 <foo+0x40>
|    c:   d2800240        mov     x0, #0x12                       // #18
|   10:   d2800681        mov     x1, #0x34                       // #52
|   14:   aa0003e5        mov     x5, x0
|   18:   aa0103e6        mov     x6, x1
|   1c:   d2800ac2        mov     x2, #0x56                       // #86
|   20:   d2800f03        mov     x3, #0x78                       // #120
|   24:   48207c82        casp    x0, x1, x2, x3, [x4]
|   28:   ca050000        eor     x0, x0, x5
|   2c:   ca060021        eor     x1, x1, x6
|   30:   aa010000        orr     x0, x0, x1
|   34:   d2800000        mov     x0, #0x0                        // #0    <--- BANG
|   38:   d50323bf        autiasp
|   3c:   d65f03c0        ret
|   40:   d2800240        mov     x0, #0x12                       // #18
|   44:   d2800681        mov     x1, #0x34                       // #52
|   48:   d2800ac2        mov     x2, #0x56                       // #86
|   4c:   d2800f03        mov     x3, #0x78                       // #120
|   50:   f9800091        prfm    pstl1strm, [x4]
|   54:   c87f1885        ldxp    x5, x6, [x4]
|   58:   ca0000a5        eor     x5, x5, x0
|   5c:   ca0100c6        eor     x6, x6, x1
|   60:   aa0600a6        orr     x6, x5, x6
|   64:   b5000066        cbnz    x6, 70 <foo+0x70>
|   68:   c8250c82        stxp    w5, x2, x3, [x4]
|   6c:   35ffff45        cbnz    w5, 54 <foo+0x54>
|   70:   d2800000        mov     x0, #0x0                        // #0     <--- BANG
|   74:   d50323bf        autiasp
|   78:   d65f03c0        ret

Notice that at the lines with "BANG" comments, GCC has assumed that the
higher 8 bytes are unchanged by the cmpxchg_double() call, and that
`hi_old ^ hi_new` can be reduced to a constant zero, for both LSE and
LL/SC versions of cmpxchg_double().

This patch fixes the issue by passing a pointer to __uint128_t into the
+Q constraint, ensuring that the compiler hazards against the entire 16
bytes being modified.

With this change, GCC 12.1.0 compiles the above test as:

| 0000000000000000 <foo>:
|    0:   f9400407        ldr     x7, [x0, #8]
|    4:   d503233f        paciasp
|    8:   aa0003e4        mov     x4, x0
|    c:   1400000f        b       48 <foo+0x48>
|   10:   d2800240        mov     x0, #0x12                       // #18
|   14:   d2800681        mov     x1, #0x34                       // #52
|   18:   aa0003e5        mov     x5, x0
|   1c:   aa0103e6        mov     x6, x1
|   20:   d2800ac2        mov     x2, #0x56                       // #86
|   24:   d2800f03        mov     x3, #0x78                       // #120
|   28:   48207c82        casp    x0, x1, x2, x3, [x4]
|   2c:   ca050000        eor     x0, x0, x5
|   30:   ca060021        eor     x1, x1, x6
|   34:   aa010000        orr     x0, x0, x1
|   38:   f9400480        ldr     x0, [x4, #8]
|   3c:   d50323bf        autiasp
|   40:   ca0000e0        eor     x0, x7, x0
|   44:   d65f03c0        ret
|   48:   d2800240        mov     x0, #0x12                       // #18
|   4c:   d2800681        mov     x1, #0x34                       // #52
|   50:   d2800ac2        mov     x2, #0x56                       // #86
|   54:   d2800f03        mov     x3, #0x78                       // #120
|   58:   f9800091        prfm    pstl1strm, [x4]
|   5c:   c87f1885        ldxp    x5, x6, [x4]
|   60:   ca0000a5        eor     x5, x5, x0
|   64:   ca0100c6        eor     x6, x6, x1
|   68:   aa0600a6        orr     x6, x5, x6
|   6c:   b5000066        cbnz    x6, 78 <foo+0x78>
|   70:   c8250c82        stxp    w5, x2, x3, [x4]
|   74:   35ffff45        cbnz    w5, 5c <foo+0x5c>
|   78:   f9400480        ldr     x0, [x4, #8]
|   7c:   d50323bf        autiasp
|   80:   ca0000e0        eor     x0, x7, x0
|   84:   d65f03c0        ret

... sampling the high 8 bytes before and after the cmpxchg, and
performing an EOR, as we'd expect.

For backporting, I've tested this atop linux-4.9.y with GCC 5.5.0. Note
that linux-4.9.y is oldest currently supported stable release, and
mandates GCC 5.1+. Unfortunately I couldn't get a GCC 5.1 binary to run
on my machines due to library incompatibilities.

I've also used a standalone test to check that we can use a __uint128_t
pointer in a +Q constraint at least as far back as GCC 4.8.5 and LLVM
3.9.1.

Fixes: 5284e1b4bc ("arm64: xchg: Implement cmpxchg_double")
Fixes: e9a4b79565 ("arm64: cmpxchg_dbl: patch in lse instructions when supported by the CPU")
Reported-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://lore.kernel.org/lkml/Y6DEfQXymYVgL3oJ@boqun-archlinux/
Reported-by: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/lkml/Y6GXoO4qmH9OIZ5Q@hirez.programming.kicks-ass.net/
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: stable@vger.kernel.org
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Steve Capper <steve.capper@arm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20230104151626.3262137-1-mark.rutland@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
2023-01-05 15:28:15 +00:00
junhua huang
ef08c0fadd arm64/uprobes: change the uprobe_opcode_t typedef to fix the sparse warning
After we fixed the uprobe inst endian in aarch_be, the sparse check report
the following warning info:

sparse warnings: (new ones prefixed by >>)
>> kernel/events/uprobes.c:223:25: sparse: sparse: restricted __le32 degrades to integer
>> kernel/events/uprobes.c:574:56: sparse: sparse: incorrect type in argument 4 (different base types)
@@     expected unsigned int [addressable] [usertype] opcode @@     got restricted __le32 [usertype] @@
   kernel/events/uprobes.c:574:56: sparse:     expected unsigned int [addressable] [usertype] opcode
   kernel/events/uprobes.c:574:56: sparse:     got restricted __le32 [usertype]
>> kernel/events/uprobes.c:1483:32: sparse: sparse: incorrect type in initializer (different base types)
@@     expected unsigned int [usertype] insn @@     got restricted __le32 [usertype] @@
   kernel/events/uprobes.c:1483:32: sparse:     expected unsigned int [usertype] insn
   kernel/events/uprobes.c:1483:32: sparse:     got restricted __le32 [usertype]

use the __le32 to u32 for uprobe_opcode_t, to keep the same.

Fixes: 60f07e22a7 ("arm64:uprobe fix the uprobe SWBP_INSN in big-endian")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: junhua huang <huang.junhua@zte.com.cn>
Link: https://lore.kernel.org/r/202212280954121197626@zte.com.cn
Signed-off-by: Will Deacon <will@kernel.org>
2023-01-05 15:26:09 +00:00
Marc Zyngier
afbb1b1cae Merge branch kvm-arm64/s1ptw-write-fault into kvmarm-master/fixes
* kvm-arm64/s1ptw-write-fault:
  : .
  : Fix S1PTW fault handling that was until then always taken
  : as a write. From the cover letter:
  :
  : `Recent developments on the EFI front have resulted in guests that
  : simply won't boot if the page tables are in a read-only memslot and
  : that you're a bit unlucky in the way S2 gets paged in... The core
  : issue is related to the fact that we treat a S1PTW as a write, which
  : is close enough to what needs to be done. Until to get to RO memslots.
  :
  : The first patch fixes this and is definitely a stable candidate. It
  : splits the faulting of page tables in two steps (RO translation fault,
  : followed by a writable permission fault -- should it even happen).
  : The second one documents the slightly odd behaviour of PTW writes to
  : RO memslot, which do not result in a KVM_MMIO exit. The last patch is
  : totally optional, only tangentially related, and randomly repainting
  : stuff (maybe that's contagious, who knows)."
  :
  : .
  KVM: arm64: Convert FSC_* over to ESR_ELx_FSC_*
  KVM: arm64: Document the behaviour of S1PTW faults on RO memslots
  KVM: arm64: Fix S1PTW handling on RO memslots

Signed-off-by: Marc Zyngier <maz@kernel.org>
2023-01-05 15:25:54 +00:00
Marc Zyngier
d5b4d07bb3 Merge branch kvm-arm64/pmu-fixes-6.2 into kvmarm-master/fixes
* kvm-arm64/pmu-fixes-6.2:
  : .
  : Fix for an incredibly stupid bug in the PMU rework that went into
  : 6.2. Brown paper bag time.
  : .
  KVM: arm64: PMU: Fix PMCR_EL0 reset value

Signed-off-by: Marc Zyngier <maz@kernel.org>
2023-01-05 15:25:43 +00:00
Marc Zyngier
decb17aeb8 KVM: arm64: vgic: Add Apple M2 cpus to the list of broken SEIS implementations
I really hoped that Apple had fixed their not-quite-a-vgic implementation
when moving from M1 to M2. Alas, it seems they didn't, and running
a buggy EFI version results in the vgic generating SErrors outside
of the guest and taking the host down.

Apply the same workaround as for M1. Yes, this is all a bit crap.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230103095022.3230946-2-maz@kernel.org
2023-01-05 15:25:19 +00:00
Catalin Marinas
4f4c549feb arm64: mte: Avoid the racy walk of the vma list during core dump
The MTE coredump code in arch/arm64/kernel/elfcore.c iterates over the
vma list without the mmap_lock held. This can race with another process
or userfaultfd concurrently modifying the vma list. Change the
for_each_mte_vma macro and its callers to instead use the vma snapshot
taken by dump_vma_snapshot() and stored in the cprm object.

Fixes: 6dd8b1a0b6 ("arm64: mte: Dump the MTE tags in the core file")
Cc: <stable@vger.kernel.org> # 5.18.x
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Seth Jenkins <sethjenkins@google.com>
Suggested-by: Seth Jenkins <sethjenkins@google.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20221222181251.1345752-4-catalin.marinas@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
2023-01-05 15:12:12 +00:00
Catalin Marinas
19e183b545 elfcore: Add a cprm parameter to elf_core_extra_{phdrs,data_size}
A subsequent fix for arm64 will use this parameter to parse the vma
information from the snapshot created by dump_vma_snapshot() rather than
traversing the vma list without the mmap_lock.

Fixes: 6dd8b1a0b6 ("arm64: mte: Dump the MTE tags in the core file")
Cc: <stable@vger.kernel.org> # 5.18.x
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Seth Jenkins <sethjenkins@google.com>
Suggested-by: Seth Jenkins <sethjenkins@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20221222181251.1345752-3-catalin.marinas@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
2023-01-05 15:12:12 +00:00
Catalin Marinas
736eedc974 arm64: mte: Fix double-freeing of the temporary tag storage during coredump
Commit 16decce22e ("arm64: mte: Fix the stack frame size warning in
mte_dump_tag_range()") moved the temporary tag storage array from the
stack to slab but it also introduced an error in double freeing this
object. Remove the in-loop freeing.

Fixes: 16decce22e ("arm64: mte: Fix the stack frame size warning in mte_dump_tag_range()")
Cc: <stable@vger.kernel.org> # 5.18.x
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Seth Jenkins <sethjenkins@google.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20221222181251.1345752-2-catalin.marinas@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
2023-01-05 15:12:12 +00:00
Zenghui Yu
eb9a85261e arm64: ptrace: Use ARM64_SME to guard the SME register enumerations
We currently guard REGSET_{SSVE, ZA} using ARM64_SVE for no good reason.
Both enumerations would be pointless without ARM64_SME and create two empty
entries in aarch64_regsets[] which would then become part of a process's
native regset view (they should be ignored though).

Switch to use ARM64_SME instead.

Fixes: e12310a0d3 ("arm64/sme: Implement ptrace support for streaming mode SVE registers")
Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20221214135943.379-1-yuzenghui@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
2023-01-05 15:08:31 +00:00
Liu Shixin
730a11f982 arm64/mm: add pud_user_exec() check in pud_user_accessible_page()
Add check for the executable case in pud_user_accessible_page() too
like what we did for pte and pmd.

Fixes: 42b2547137 ("arm64/mm: enable ARCH_SUPPORTS_PAGE_TABLE_CHECK")
Suggested-by: Will Deacon <will@kernel.org>
Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Link: https://lore.kernel.org/r/20221122123137.429686-1-liushixin2@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
2023-01-05 15:05:22 +00:00
Liu Shixin
74c2f81054 arm64/mm: fix incorrect file_map_count for invalid pmd
The page table check trigger BUG_ON() unexpectedly when split hugepage:

 ------------[ cut here ]------------
 kernel BUG at mm/page_table_check.c:119!
 Internal error: Oops - BUG: 00000000f2000800 [#1] SMP
 Dumping ftrace buffer:
    (ftrace buffer empty)
 Modules linked in:
 CPU: 7 PID: 210 Comm: transhuge-stres Not tainted 6.1.0-rc3+ #748
 Hardware name: linux,dummy-virt (DT)
 pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 pc : page_table_check_set.isra.0+0x398/0x468
 lr : page_table_check_set.isra.0+0x1c0/0x468
[...]
 Call trace:
  page_table_check_set.isra.0+0x398/0x468
  __page_table_check_pte_set+0x160/0x1c0
  __split_huge_pmd_locked+0x900/0x1648
  __split_huge_pmd+0x28c/0x3b8
  unmap_page_range+0x428/0x858
  unmap_single_vma+0xf4/0x1c8
  zap_page_range+0x2b0/0x410
  madvise_vma_behavior+0xc44/0xe78
  do_madvise+0x280/0x698
  __arm64_sys_madvise+0x90/0xe8
  invoke_syscall.constprop.0+0xdc/0x1d8
  do_el0_svc+0xf4/0x3f8
  el0_svc+0x58/0x120
  el0t_64_sync_handler+0xb8/0xc0
  el0t_64_sync+0x19c/0x1a0
[...]

On arm64, pmd_leaf() will return true even if the pmd is invalid due to
pmd_present_invalid() check. So in pmdp_invalidate() the file_map_count
will not only decrease once but also increase once. Then in set_pte_at(),
the file_map_count increase again, and so trigger BUG_ON() unexpectedly.

Add !pmd_present_invalid() check in pmd_user_accessible_page() to fix the
problem.

Fixes: 42b2547137 ("arm64/mm: enable ARCH_SUPPORTS_PAGE_TABLE_CHECK")
Reported-by: Denys Vlasenko <dvlasenk@redhat.com>
Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Acked-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20221121073608.4183459-1-liushixin2@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
2023-01-05 15:04:49 +00:00
Marc Zyngier
b0803ba72b KVM: arm64: Convert FSC_* over to ESR_ELx_FSC_*
The former is an AArch32 legacy, so let's move over to the
verbose (and strictly identical) version.

This involves moving some of the #defines that were private
to KVM into the more generic esr.h.

Signed-off-by: Marc Zyngier <maz@kernel.org>
2023-01-03 10:01:52 +00:00
Marc Zyngier
406504c7b0 KVM: arm64: Fix S1PTW handling on RO memslots
A recent development on the EFI front has resulted in guests having
their page tables baked in the firmware binary, and mapped into the
IPA space as part of a read-only memslot. Not only is this legitimate,
but it also results in added security, so thumbs up.

It is possible to take an S1PTW translation fault if the S1 PTs are
unmapped at stage-2. However, KVM unconditionally treats S1PTW as a
write to correctly handle hardware AF/DB updates to the S1 PTs.
Furthermore, KVM injects an exception into the guest for S1PTW writes.
In the aforementioned case this results in the guest taking an abort
it won't recover from, as the S1 PTs mapping the vectors suffer from
the same problem.

So clearly our handling is... wrong.

Instead, switch to a two-pronged approach:

- On S1PTW translation fault, handle the fault as a read

- On S1PTW permission fault, handle the fault as a write

This is of no consequence to SW that *writes* to its PTs (the write
will trigger a non-S1PTW fault), and SW that uses RO PTs will not
use HW-assisted AF/DB anyway, as that'd be wrong.

Only in the case described in c4ad98e4b7 ("KVM: arm64: Assume write
fault on S1PTW permission fault on instruction fetch") do we end-up
with two back-to-back faults (page being evicted and faulted back).
I don't think this is a case worth optimising for.

Fixes: c4ad98e4b7 ("KVM: arm64: Assume write fault on S1PTW permission fault on instruction fetch")
Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Regression-tested-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Cc: stable@vger.kernel.org
2023-01-03 09:59:29 +00:00
Tianjia Zhang
736f88689c crypto: arm64/sm4 - fix possible crash with CFI enabled
The SM4 CCM/GCM assembly functions for encryption and decryption is
called via indirect function calls.  Therefore they need to use
SYM_TYPED_FUNC_START instead of SYM_FUNC_START to cause its type hash
to be emitted when the kernel is built with CONFIG_CFI_CLANG=y.
Otherwise, the code crashes with a CFI failure (if the compiler didn't
happen to optimize out the indirect call).

Fixes: 67fa3a7fdf ("crypto: arm64/sm4 - add CE implementation for CCM mode")
Fixes: ae1b83c7d5 ("crypto: arm64/sm4 - add CE implementation for GCM mode")
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-12-30 17:57:42 +08:00
Linus Torvalds
9cf5b508bd remoteproc updates for v6.2
rproc-virtio device names are now auto generated, to avoid conflicts
 between remoteproc instances.
 
 The imx_rproc driver is extended with support for communicating with and
 attaching to a running M4 on i.MX8QXP, as well as support for
 attaching to the M4 after self-recovering from a crash. Support is
 added for i.MX8QM and mailbox channels are reconnected during the
 recovery process, in order to avoid data corruption.
 
 The Xilinx Zynqmp firmware interface is extended and support for the
 Xilinx R5 RPU is introduced.
 
 Various resources leaks, primarily in error paths, throughout the
 Qualcomm drivers are corrected.
 
 Lastly a fix to ensure that pm_relax is invoked even if the remoteproc
 instance is stopped between a crash is being reported and the recovery
 handler is scheduled.
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Merge tag 'rproc-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux

Pull remoteproc updates from Bjorn Andersson:
 "rproc-virtio device names are now auto generated, to avoid conflicts
  between remoteproc instances.

  The imx_rproc driver is extended with support for communicating with
  and attaching to a running M4 on i.MX8QXP, as well as support for
  attaching to the M4 after self-recovering from a crash. Support is
  added for i.MX8QM and mailbox channels are reconnected during the
  recovery process, in order to avoid data corruption.

  The Xilinx Zynqmp firmware interface is extended and support for the
  Xilinx R5 RPU is introduced.

  Various resources leaks, primarily in error paths, throughout the
  Qualcomm drivers are corrected.

  Lastly a fix to ensure that pm_relax is invoked even if the remoteproc
  instance is stopped between a crash is being reported and the recovery
  handler is scheduled"

* tag 'rproc-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux: (25 commits)
  remoteproc: core: Do pm_relax when in RPROC_OFFLINE state
  remoteproc: qcom: q6v5: Fix missing clk_disable_unprepare() in q6v5_wcss_qcs404_power_on()
  remoteproc: qcom_q6v5_pas: Fix missing of_node_put() in adsp_alloc_memory_region()
  remoteproc: qcom_q6v5_pas: detach power domains on remove
  remoteproc: qcom_q6v5_pas: disable wakeup on probe fail or remove
  remoteproc: qcom: q6v5: Fix potential null-ptr-deref in q6v5_wcss_init_mmio()
  remoteproc: sysmon: fix memory leak in qcom_add_sysmon_subdev()
  remoteproc: sysmon: Make QMI message rules const
  drivers: remoteproc: Add Xilinx r5 remoteproc driver
  firmware: xilinx: Add RPU configuration APIs
  firmware: xilinx: Add shutdown/wakeup APIs
  firmware: xilinx: Add ZynqMP firmware ioctl enums for RPU configuration.
  arm64: dts: xilinx: zynqmp: Add RPU subsystem device node
  dt-bindings: remoteproc: Add Xilinx RPU subsystem bindings
  remoteproc: core: Use device_match_of_node()
  remoteproc: imx_rproc: Correct i.MX93 DRAM mapping
  remoteproc: imx_rproc: Enable attach recovery for i.MX8QM/QXP
  remoteproc: imx_rproc: Request mbox channel later
  remoteproc: imx_rproc: Support i.MX8QM
  remoteproc: imx_rproc: Support kicking Mcore from Linux for i.MX8QXP
  ...
2022-12-21 09:37:14 -08:00
Linus Torvalds
850f7a5cab ARM: SoC fixes for 6.2
These are a couple of build fixes from randconfig testing,
 plus a set of Mediatek SoC specific fixes, all trivial.
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Merge tag 'soc-fixes-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC fixes from Arnd Bergmann:
 "These are a couple of build fixes from randconfig testing, plus a set
  of Mediatek SoC specific fixes, all trivial"

* tag 'soc-fixes-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  soc: tegra: fix CPU_BIG_ENDIAN dependencies
  ARM: disallow pre-ARMv5 builds with ld.lld
  ARM: pxa: fix building with clang
  MAINTAINERS: add related dts to IXP4xx
  ARM: dts: spear: drop 0x from unit address
  arm64: dts: mt8183: Fix Mali GPU clock
  arm64: dts: mediatek: mt8195-demo: fix the memory size of node secmon
  soc: mediatek: pm-domains: Fix the power glitch issue
2022-12-19 16:07:59 -06:00
Linus Torvalds
77856d911a arm64 fixes for -rc1
- Fix Kconfig dependencies to re-allow the enabling of function graph
   tracer and shadow call stacks at the same time.
 
 - Revert the workaround for CPU erratum #2645198 since the CONFIG_
   guards were incorrect and the code has therefore not seen any real
   exposure in -next.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:

 - Fix Kconfig dependencies to re-allow the enabling of function graph
   tracer and shadow call stacks at the same time.

 - Revert the workaround for CPU erratum #2645198 since the CONFIG_
   guards were incorrect and the code has therefore not seen any real
   exposure in -next.

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  Revert "arm64: errata: Workaround possible Cortex-A715 [ESR|FAR]_ELx corruption"
  ftrace: Allow WITH_ARGS flavour of graph tracer with shadow call stack
2022-12-16 13:46:41 -06:00
Chen-Yu Tsai
ad2631b564 arm64: dts: mt8183: Fix Mali GPU clock
The actual clock feeding into the Mali GPU on the MT8183 is from the
clock gate in the MFGCFG block, not CLK_TOP_MFGPLL_CK from the TOPCKGEN
block, which itself is simply a pass-through placeholder for the MFGPLL
in the APMIXEDSYS block.

Fix the hardware description with the correct clock reference.

Fixes: a8168cebf1 ("arm64: dts: mt8183: Add node for the Mali GPU")
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Link: https://lore.kernel.org/r/20220927101128.44758-2-angelogioacchino.delregno@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2022-12-16 11:41:45 +01:00
Macpaul Lin
e4a4175201 arm64: dts: mediatek: mt8195-demo: fix the memory size of node secmon
The size of device tree node secmon (bl31_secmon_reserved) was
incorrect. It should be increased to 2MiB (0x200000).

The origin setting will cause some abnormal behavior due to
trusted-firmware-a and related firmware didn't load correctly.
The incorrect behavior may vary because of different software stacks.
For example, it will cause build error in some Yocto project because
it will check if there was enough memory to load trusted-firmware-a
to the reserved memory.

When mt8195-demo.dts sent to the upstream, at that time the size of
BL31 was small. Because supported functions and modules in BL31 are
basic sets when the board was under early development stage.

Now BL31 includes more firmwares of coprocessors and maturer functions
so the size has grown bigger in real applications. According to the value
reported by customers, we think reserved 2MiB for BL31 might be enough
for maybe the following 2 or 3 years.

Cc: stable@vger.kernel.org      # v5.19
Fixes: 6147314aee ("arm64: dts: mediatek: Add device-tree for MT8195 Demo board")
Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com>
Reviewed-by: Miles Chen <miles.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20221111095540.28881-1-macpaul.lin@mediatek.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2022-12-16 11:41:44 +01:00
Linus Torvalds
8fa590bf34 ARM64:
* Enable the per-vcpu dirty-ring tracking mechanism, together with an
   option to keep the good old dirty log around for pages that are
   dirtied by something other than a vcpu.
 
 * Switch to the relaxed parallel fault handling, using RCU to delay
   page table reclaim and giving better performance under load.
 
 * Relax the MTE ABI, allowing a VMM to use the MAP_SHARED mapping option,
   which multi-process VMMs such as crosvm rely on (see merge commit 382b5b87a9:
   "Fix a number of issues with MTE, such as races on the tags being
   initialised vs the PG_mte_tagged flag as well as the lack of support
   for VM_SHARED when KVM is involved.  Patches from Catalin Marinas and
   Peter Collingbourne").
 
 * Merge the pKVM shadow vcpu state tracking that allows the hypervisor
   to have its own view of a vcpu, keeping that state private.
 
 * Add support for the PMUv3p5 architecture revision, bringing support
   for 64bit counters on systems that support it, and fix the
   no-quite-compliant CHAIN-ed counter support for the machines that
   actually exist out there.
 
 * Fix a handful of minor issues around 52bit VA/PA support (64kB pages
   only) as a prefix of the oncoming support for 4kB and 16kB pages.
 
 * Pick a small set of documentation and spelling fixes, because no
   good merge window would be complete without those.
 
 s390:
 
 * Second batch of the lazy destroy patches
 
 * First batch of KVM changes for kernel virtual != physical address support
 
 * Removal of a unused function
 
 x86:
 
 * Allow compiling out SMM support
 
 * Cleanup and documentation of SMM state save area format
 
 * Preserve interrupt shadow in SMM state save area
 
 * Respond to generic signals during slow page faults
 
 * Fixes and optimizations for the non-executable huge page errata fix.
 
 * Reprogram all performance counters on PMU filter change
 
 * Cleanups to Hyper-V emulation and tests
 
 * Process Hyper-V TLB flushes from a nested guest (i.e. from a L2 guest
   running on top of a L1 Hyper-V hypervisor)
 
 * Advertise several new Intel features
 
 * x86 Xen-for-KVM:
 
 ** Allow the Xen runstate information to cross a page boundary
 
 ** Allow XEN_RUNSTATE_UPDATE flag behaviour to be configured
 
 ** Add support for 32-bit guests in SCHEDOP_poll
 
 * Notable x86 fixes and cleanups:
 
 ** One-off fixes for various emulation flows (SGX, VMXON, NRIPS=0).
 
 ** Reinstate IBPB on emulated VM-Exit that was incorrectly dropped a few
    years back when eliminating unnecessary barriers when switching between
    vmcs01 and vmcs02.
 
 ** Clean up vmread_error_trampoline() to make it more obvious that params
    must be passed on the stack, even for x86-64.
 
 ** Let userspace set all supported bits in MSR_IA32_FEAT_CTL irrespective
    of the current guest CPUID.
 
 ** Fudge around a race with TSC refinement that results in KVM incorrectly
    thinking a guest needs TSC scaling when running on a CPU with a
    constant TSC, but no hardware-enumerated TSC frequency.
 
 ** Advertise (on AMD) that the SMM_CTL MSR is not supported
 
 ** Remove unnecessary exports
 
 Generic:
 
 * Support for responding to signals during page faults; introduces
   new FOLL_INTERRUPTIBLE flag that was reviewed by mm folks
 
 Selftests:
 
 * Fix an inverted check in the access tracking perf test, and restore
   support for asserting that there aren't too many idle pages when
   running on bare metal.
 
 * Fix build errors that occur in certain setups (unsure exactly what is
   unique about the problematic setup) due to glibc overriding
   static_assert() to a variant that requires a custom message.
 
 * Introduce actual atomics for clear/set_bit() in selftests
 
 * Add support for pinning vCPUs in dirty_log_perf_test.
 
 * Rename the so called "perf_util" framework to "memstress".
 
 * Add a lightweight psuedo RNG for guest use, and use it to randomize
   the access pattern and write vs. read percentage in the memstress tests.
 
 * Add a common ucall implementation; code dedup and pre-work for running
   SEV (and beyond) guests in selftests.
 
 * Provide a common constructor and arch hook, which will eventually be
   used by x86 to automatically select the right hypercall (AMD vs. Intel).
 
 * A bunch of added/enabled/fixed selftests for ARM64, covering memslots,
   breakpoints, stage-2 faults and access tracking.
 
 * x86-specific selftest changes:
 
 ** Clean up x86's page table management.
 
 ** Clean up and enhance the "smaller maxphyaddr" test, and add a related
    test to cover generic emulation failure.
 
 ** Clean up the nEPT support checks.
 
 ** Add X86_PROPERTY_* framework to retrieve multi-bit CPUID values.
 
 ** Fix an ordering issue in the AMX test introduced by recent conversions
    to use kvm_cpu_has(), and harden the code to guard against similar bugs
    in the future.  Anything that tiggers caching of KVM's supported CPUID,
    kvm_cpu_has() in this case, effectively hides opt-in XSAVE features if
    the caching occurs before the test opts in via prctl().
 
 Documentation:
 
 * Remove deleted ioctls from documentation
 
 * Clean up the docs for the x86 MSR filter.
 
 * Various fixes
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm updates from Paolo Bonzini:
 "ARM64:

   - Enable the per-vcpu dirty-ring tracking mechanism, together with an
     option to keep the good old dirty log around for pages that are
     dirtied by something other than a vcpu.

   - Switch to the relaxed parallel fault handling, using RCU to delay
     page table reclaim and giving better performance under load.

   - Relax the MTE ABI, allowing a VMM to use the MAP_SHARED mapping
     option, which multi-process VMMs such as crosvm rely on (see merge
     commit 382b5b87a9: "Fix a number of issues with MTE, such as
     races on the tags being initialised vs the PG_mte_tagged flag as
     well as the lack of support for VM_SHARED when KVM is involved.
     Patches from Catalin Marinas and Peter Collingbourne").

   - Merge the pKVM shadow vcpu state tracking that allows the
     hypervisor to have its own view of a vcpu, keeping that state
     private.

   - Add support for the PMUv3p5 architecture revision, bringing support
     for 64bit counters on systems that support it, and fix the
     no-quite-compliant CHAIN-ed counter support for the machines that
     actually exist out there.

   - Fix a handful of minor issues around 52bit VA/PA support (64kB
     pages only) as a prefix of the oncoming support for 4kB and 16kB
     pages.

   - Pick a small set of documentation and spelling fixes, because no
     good merge window would be complete without those.

  s390:

   - Second batch of the lazy destroy patches

   - First batch of KVM changes for kernel virtual != physical address
     support

   - Removal of a unused function

  x86:

   - Allow compiling out SMM support

   - Cleanup and documentation of SMM state save area format

   - Preserve interrupt shadow in SMM state save area

   - Respond to generic signals during slow page faults

   - Fixes and optimizations for the non-executable huge page errata
     fix.

   - Reprogram all performance counters on PMU filter change

   - Cleanups to Hyper-V emulation and tests

   - Process Hyper-V TLB flushes from a nested guest (i.e. from a L2
     guest running on top of a L1 Hyper-V hypervisor)

   - Advertise several new Intel features

   - x86 Xen-for-KVM:

      - Allow the Xen runstate information to cross a page boundary

      - Allow XEN_RUNSTATE_UPDATE flag behaviour to be configured

      - Add support for 32-bit guests in SCHEDOP_poll

   - Notable x86 fixes and cleanups:

      - One-off fixes for various emulation flows (SGX, VMXON, NRIPS=0).

      - Reinstate IBPB on emulated VM-Exit that was incorrectly dropped
        a few years back when eliminating unnecessary barriers when
        switching between vmcs01 and vmcs02.

      - Clean up vmread_error_trampoline() to make it more obvious that
        params must be passed on the stack, even for x86-64.

      - Let userspace set all supported bits in MSR_IA32_FEAT_CTL
        irrespective of the current guest CPUID.

      - Fudge around a race with TSC refinement that results in KVM
        incorrectly thinking a guest needs TSC scaling when running on a
        CPU with a constant TSC, but no hardware-enumerated TSC
        frequency.

      - Advertise (on AMD) that the SMM_CTL MSR is not supported

      - Remove unnecessary exports

  Generic:

   - Support for responding to signals during page faults; introduces
     new FOLL_INTERRUPTIBLE flag that was reviewed by mm folks

  Selftests:

   - Fix an inverted check in the access tracking perf test, and restore
     support for asserting that there aren't too many idle pages when
     running on bare metal.

   - Fix build errors that occur in certain setups (unsure exactly what
     is unique about the problematic setup) due to glibc overriding
     static_assert() to a variant that requires a custom message.

   - Introduce actual atomics for clear/set_bit() in selftests

   - Add support for pinning vCPUs in dirty_log_perf_test.

   - Rename the so called "perf_util" framework to "memstress".

   - Add a lightweight psuedo RNG for guest use, and use it to randomize
     the access pattern and write vs. read percentage in the memstress
     tests.

   - Add a common ucall implementation; code dedup and pre-work for
     running SEV (and beyond) guests in selftests.

   - Provide a common constructor and arch hook, which will eventually
     be used by x86 to automatically select the right hypercall (AMD vs.
     Intel).

   - A bunch of added/enabled/fixed selftests for ARM64, covering
     memslots, breakpoints, stage-2 faults and access tracking.

   - x86-specific selftest changes:

      - Clean up x86's page table management.

      - Clean up and enhance the "smaller maxphyaddr" test, and add a
        related test to cover generic emulation failure.

      - Clean up the nEPT support checks.

      - Add X86_PROPERTY_* framework to retrieve multi-bit CPUID values.

      - Fix an ordering issue in the AMX test introduced by recent
        conversions to use kvm_cpu_has(), and harden the code to guard
        against similar bugs in the future. Anything that tiggers
        caching of KVM's supported CPUID, kvm_cpu_has() in this case,
        effectively hides opt-in XSAVE features if the caching occurs
        before the test opts in via prctl().

  Documentation:

   - Remove deleted ioctls from documentation

   - Clean up the docs for the x86 MSR filter.

   - Various fixes"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (361 commits)
  KVM: x86: Add proper ReST tables for userspace MSR exits/flags
  KVM: selftests: Allocate ucall pool from MEM_REGION_DATA
  KVM: arm64: selftests: Align VA space allocator with TTBR0
  KVM: arm64: Fix benign bug with incorrect use of VA_BITS
  KVM: arm64: PMU: Fix period computation for 64bit counters with 32bit overflow
  KVM: x86: Advertise that the SMM_CTL MSR is not supported
  KVM: x86: remove unnecessary exports
  KVM: selftests: Fix spelling mistake "probabalistic" -> "probabilistic"
  tools: KVM: selftests: Convert clear/set_bit() to actual atomics
  tools: Drop "atomic_" prefix from atomic test_and_set_bit()
  tools: Drop conflicting non-atomic test_and_{clear,set}_bit() helpers
  KVM: selftests: Use non-atomic clear/set bit helpers in KVM tests
  perf tools: Use dedicated non-atomic clear/set bit helpers
  tools: Take @bit as an "unsigned long" in {clear,set}_bit() helpers
  KVM: arm64: selftests: Enable single-step without a "full" ucall()
  KVM: x86: fix APICv/x2AVIC disabled when vm reboot by itself
  KVM: Remove stale comment about KVM_REQ_UNHALT
  KVM: Add missing arch for KVM_CREATE_DEVICE and KVM_{SET,GET}_DEVICE_ATTR
  KVM: Reference to kvm_userspace_memory_region in doc and comments
  KVM: Delete all references to removed KVM_SET_MEMORY_ALIAS ioctl
  ...
2022-12-15 11:12:21 -08:00
Will Deacon
c0cd1d5417 Revert "arm64: errata: Workaround possible Cortex-A715 [ESR|FAR]_ELx corruption"
This reverts commit 44ecda71fd.

All versions of this patch on the mailing list, including the version
that ended up getting merged, have portions of code guarded by the
non-existent CONFIG_ARM64_WORKAROUND_2645198 option. Although Anshuman
says he tested the code with some additional debug changes [1], I'm
hesitant to fix the CONFIG option and light up a bunch of code right
before I (and others) disappear for the end of year holidays, during
which time we won't be around to deal with any fallout.

So revert the change for now. We can bring back a fixed, tested version
for a later -rc when folks are thinking about things other than trees
and turkeys.

[1] https://lore.kernel.org/r/b6f61241-e436-5db1-1053-3b441080b8d6@arm.com
Reported-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20221215094811.23188-1-lukas.bulwahn@gmail.com
Signed-off-by: Will Deacon <will@kernel.org>
2022-12-15 17:59:12 +00:00
Linus Torvalds
c0f234ff90 gpio: updates for v6.2
GPIO core:
 - teach gpiolib to work with software nodes for HW description
 - remove ARCH_NR_GPIOS treewide as we no longer impose any limit on the number
   of GPIOS since the allocation became entirely dynamic
 - add support for HW quirks for Cirrus CS42L56 codec, Marvell NFC controller,
   Freescale PCIe and Ethernet controller, Himax LCDs and Mediatek mt2701
 - refactor OF quirk code
 - some general refactoring of the OF and ACPI code, adding new helpers, minor
   tweaks and fixes, making fwnode usage consistent etc.
 
 GPIO uAPI:
 - fix an issue where the user-space can trigger a NULL-pointer dereference in
   the kernel by opening a device file, forcing a driver unbind and then calling
   one of the syscalls on the associated file descriptor
 
 New drivers:
 - add gpio-latch: a new GPIO multiplexer based on latches connected to other
   GPIOs
 
 Driver updates:
 - convert i2c GPIO expanders to using .probe_new()
 - drop the gpio-sta2x11 driver
 - factor out common code for the ACCES IDIO-16 family of controllers and use
   this new library wherever applicable in drivers
 - add DT support to gpio-hisi
 - allow building gpio-davinci as a module and increase its maxItems property
 - add support for a new model to gpio-pca9570
 - other minor changes to various drivers
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Merge tag 'gpio-updates-for-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio updates from Bartosz Golaszewski:
 "We have a new GPIO multiplexer driver, bunch of driver updates and
  refactoring in the core GPIO library.

  GPIO core:
   - teach gpiolib to work with software nodes for HW description
   - remove ARCH_NR_GPIOS treewide as we no longer impose any limit on
     the number of GPIOS since the allocation became entirely dynamic
   - add support for HW quirks for Cirrus CS42L56 codec, Marvell NFC
     controller, Freescale PCIe and Ethernet controller, Himax LCDs and
     Mediatek mt2701
   - refactor OF quirk code
   - some general refactoring of the OF and ACPI code, adding new
     helpers, minor tweaks and fixes, making fwnode usage consistent
     etc.

  GPIO uAPI:
   - fix an issue where the user-space can trigger a NULL-pointer
     dereference in the kernel by opening a device file, forcing a
     driver unbind and then calling one of the syscalls on the
     associated file descriptor

  New drivers:
   - add gpio-latch: a new GPIO multiplexer based on latches connected
     to other GPIOs

  Driver updates:
   - convert i2c GPIO expanders to using .probe_new()
   - drop the gpio-sta2x11 driver
   - factor out common code for the ACCES IDIO-16 family of controllers
     and use this new library wherever applicable in drivers
   - add DT support to gpio-hisi
   - allow building gpio-davinci as a module and increase its maxItems
     property
   - add support for a new model to gpio-pca9570
   - other minor changes to various drivers"

* tag 'gpio-updates-for-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (66 commits)
  gpio: sim: set a limit on the number of GPIOs
  gpiolib: protect the GPIO device against being dropped while in use by user-space
  gpiolib: cdev: fix NULL-pointer dereferences
  gpiolib: Provide to_gpio_device() helper
  gpiolib: Unify access to the device properties
  gpio: Do not include <linux/kernel.h> when not really needed.
  gpio: pcf857x: Convert to i2c's .probe_new()
  gpio: pca953x: Convert to i2c's .probe_new()
  gpio: max732x: Convert to i2c's .probe_new()
  dt-bindings: gpio: gpio-davinci: Increase maxItems in gpio-line-names
  gpiolib: ensure that fwnode is properly set
  gpio: sl28cpld: Replace irqchip mask_invert with unmask_base
  gpiolib: of: Use correct fwnode for DT-probed chips
  gpiolib: of: Drop redundant check in of_mm_gpiochip_remove()
  gpiolib: of: Prepare of_mm_gpiochip_add_data() for fwnode
  gpiolib: add support for software nodes
  gpiolib: consolidate GPIO lookups
  gpiolib: acpi: avoid leaking ACPI details into upper gpiolib layers
  gpiolib: acpi: teach acpi_find_gpio() to handle data-only nodes
  gpiolib: acpi: change acpi_find_gpio() to accept firmware node
  ...
2022-12-15 09:45:51 -08:00
Linus Torvalds
64e7003c6b This update includes the following changes:
API:
 
 - Optimise away self-test overhead when they are disabled.
 - Support symmetric encryption via keyring keys in af_alg.
 - Flip hwrng default_quality, the default is now maximum entropy.
 
 Algorithms:
 
 - Add library version of aesgcm.
 - CFI fixes for assembly code.
 - Add arm/arm64 accelerated versions of sm3/sm4.
 
 Drivers:
 
 - Remove assumption on arm64 that kmalloc is DMA-aligned.
 - Fix selftest failures in rockchip.
 - Add support for RK3328/RK3399 in rockchip.
 - Add deflate support in qat.
 - Merge ux500 into stm32.
 - Add support for TEE for PCI ID 0x14CA in ccp.
 - Add mt7986 support in mtk.
 - Add MaxLinear platform support in inside-secure.
 - Add NPCM8XX support in npcm.
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Merge tag 'v6.2-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto updates from Herbert Xu:
 "API:
   - Optimise away self-test overhead when they are disabled
   - Support symmetric encryption via keyring keys in af_alg
   - Flip hwrng default_quality, the default is now maximum entropy

  Algorithms:
   - Add library version of aesgcm
   - CFI fixes for assembly code
   - Add arm/arm64 accelerated versions of sm3/sm4

  Drivers:
   - Remove assumption on arm64 that kmalloc is DMA-aligned
   - Fix selftest failures in rockchip
   - Add support for RK3328/RK3399 in rockchip
   - Add deflate support in qat
   - Merge ux500 into stm32
   - Add support for TEE for PCI ID 0x14CA in ccp
   - Add mt7986 support in mtk
   - Add MaxLinear platform support in inside-secure
   - Add NPCM8XX support in npcm"

* tag 'v6.2-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (184 commits)
  crypto: ux500/cryp - delete driver
  crypto: stm32/cryp - enable for use with Ux500
  crypto: stm32 - enable drivers to be used on Ux500
  dt-bindings: crypto: Let STM32 define Ux500 CRYP
  hwrng: geode - Fix PCI device refcount leak
  hwrng: amd - Fix PCI device refcount leak
  crypto: qce - Set DMA alignment explicitly
  crypto: octeontx2 - Set DMA alignment explicitly
  crypto: octeontx - Set DMA alignment explicitly
  crypto: keembay - Set DMA alignment explicitly
  crypto: safexcel - Set DMA alignment explicitly
  crypto: hisilicon/hpre - Set DMA alignment explicitly
  crypto: chelsio - Set DMA alignment explicitly
  crypto: ccree - Set DMA alignment explicitly
  crypto: ccp - Set DMA alignment explicitly
  crypto: cavium - Set DMA alignment explicitly
  crypto: img-hash - Fix variable dereferenced before check 'hdev->req'
  crypto: arm64/ghash-ce - use frame_push/pop macros consistently
  crypto: arm64/crct10dif - use frame_push/pop macros consistently
  crypto: arm64/aes-modes - use frame_push/pop macros consistently
  ...
2022-12-14 12:31:09 -08:00
Linus Torvalds
48ea09cdda hardening updates for v6.2-rc1
- Convert flexible array members, fix -Wstringop-overflow warnings,
   and fix KCFI function type mismatches that went ignored by
   maintainers (Gustavo A. R. Silva, Nathan Chancellor, Kees Cook).
 
 - Remove the remaining side-effect users of ksize() by converting
   dma-buf, btrfs, and coredump to using kmalloc_size_roundup(),
   add more __alloc_size attributes, and introduce full testing
   of all allocator functions. Finally remove the ksize() side-effect
   so that each allocation-aware checker can finally behave without
   exceptions.
 
 - Introduce oops_limit (default 10,000) and warn_limit (default off)
   to provide greater granularity of control for panic_on_oops and
   panic_on_warn (Jann Horn, Kees Cook).
 
 - Introduce overflows_type() and castable_to_type() helpers for
   cleaner overflow checking.
 
 - Improve code generation for strscpy() and update str*() kern-doc.
 
 - Convert strscpy and sigphash tests to KUnit, and expand memcpy
   tests.
 
 - Always use a non-NULL argument for prepare_kernel_cred().
 
 - Disable structleak plugin in FORTIFY KUnit test (Anders Roxell).
 
 - Adjust orphan linker section checking to respect CONFIG_WERROR
   (Xin Li).
 
 - Make sure siginfo is cleared for forced SIGKILL (haifeng.xu).
 
 - Fix um vs FORTIFY warnings for always-NULL arguments.
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Merge tag 'hardening-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull kernel hardening updates from Kees Cook:

 - Convert flexible array members, fix -Wstringop-overflow warnings, and
   fix KCFI function type mismatches that went ignored by maintainers
   (Gustavo A. R. Silva, Nathan Chancellor, Kees Cook)

 - Remove the remaining side-effect users of ksize() by converting
   dma-buf, btrfs, and coredump to using kmalloc_size_roundup(), add
   more __alloc_size attributes, and introduce full testing of all
   allocator functions. Finally remove the ksize() side-effect so that
   each allocation-aware checker can finally behave without exceptions

 - Introduce oops_limit (default 10,000) and warn_limit (default off) to
   provide greater granularity of control for panic_on_oops and
   panic_on_warn (Jann Horn, Kees Cook)

 - Introduce overflows_type() and castable_to_type() helpers for cleaner
   overflow checking

 - Improve code generation for strscpy() and update str*() kern-doc

 - Convert strscpy and sigphash tests to KUnit, and expand memcpy tests

 - Always use a non-NULL argument for prepare_kernel_cred()

 - Disable structleak plugin in FORTIFY KUnit test (Anders Roxell)

 - Adjust orphan linker section checking to respect CONFIG_WERROR (Xin
   Li)

 - Make sure siginfo is cleared for forced SIGKILL (haifeng.xu)

 - Fix um vs FORTIFY warnings for always-NULL arguments

* tag 'hardening-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (31 commits)
  ksmbd: replace one-element arrays with flexible-array members
  hpet: Replace one-element array with flexible-array member
  um: virt-pci: Avoid GCC non-NULL warning
  signal: Initialize the info in ksignal
  lib: fortify_kunit: build without structleak plugin
  panic: Expose "warn_count" to sysfs
  panic: Introduce warn_limit
  panic: Consolidate open-coded panic_on_warn checks
  exit: Allow oops_limit to be disabled
  exit: Expose "oops_count" to sysfs
  exit: Put an upper limit on how often we can oops
  panic: Separate sysctl logic from CONFIG_SMP
  mm/pgtable: Fix multiple -Wstringop-overflow warnings
  mm: Make ksize() a reporting-only function
  kunit/fortify: Validate __alloc_size attribute results
  drm/sti: Fix return type of sti_{dvo,hda,hdmi}_connector_mode_valid()
  drm/fsl-dcu: Fix return type of fsl_dcu_drm_connector_mode_valid()
  driver core: Add __alloc_size hint to devm allocators
  overflow: Introduce overflows_type() and castable_to_type()
  coredump: Proactively round up to kmalloc bucket size
  ...
2022-12-14 12:20:00 -08:00
Linus Torvalds
e2ca6ba6ba MM patches for 6.2-rc1.
- More userfaultfs work from Peter Xu.
 
 - Several convert-to-folios series from Sidhartha Kumar and Huang Ying.
 
 - Some filemap cleanups from Vishal Moola.
 
 - David Hildenbrand added the ability to selftest anon memory COW handling.
 
 - Some cpuset simplifications from Liu Shixin.
 
 - Addition of vmalloc tracing support by Uladzislau Rezki.
 
 - Some pagecache folioifications and simplifications from Matthew Wilcox.
 
 - A pagemap cleanup from Kefeng Wang: we have VM_ACCESS_FLAGS, so use it.
 
 - Miguel Ojeda contributed some cleanups for our use of the
   __no_sanitize_thread__ gcc keyword.  This series shold have been in the
   non-MM tree, my bad.
 
 - Naoya Horiguchi improved the interaction between memory poisoning and
   memory section removal for huge pages.
 
 - DAMON cleanups and tuneups from SeongJae Park
 
 - Tony Luck fixed the handling of COW faults against poisoned pages.
 
 - Peter Xu utilized the PTE marker code for handling swapin errors.
 
 - Hugh Dickins reworked compound page mapcount handling, simplifying it
   and making it more efficient.
 
 - Removal of the autonuma savedwrite infrastructure from Nadav Amit and
   David Hildenbrand.
 
 - zram support for multiple compression streams from Sergey Senozhatsky.
 
 - David Hildenbrand reworked the GUP code's R/O long-term pinning so
   that drivers no longer need to use the FOLL_FORCE workaround which
   didn't work very well anyway.
 
 - Mel Gorman altered the page allocator so that local IRQs can remnain
   enabled during per-cpu page allocations.
 
 - Vishal Moola removed the try_to_release_page() wrapper.
 
 - Stefan Roesch added some per-BDI sysfs tunables which are used to
   prevent network block devices from dirtying excessive amounts of
   pagecache.
 
 - David Hildenbrand did some cleanup and repair work on KSM COW
   breaking.
 
 - Nhat Pham and Johannes Weiner have implemented writeback in zswap's
   zsmalloc backend.
 
 - Brian Foster has fixed a longstanding corner-case oddity in
   file[map]_write_and_wait_range().
 
 - sparse-vmemmap changes for MIPS, LoongArch and NIOS2 from Feiyang
   Chen.
 
 - Shiyang Ruan has done some work on fsdax, to make its reflink mode
   work better under xfstests.  Better, but still not perfect.
 
 - Christoph Hellwig has removed the .writepage() method from several
   filesystems.  They only need .writepages().
 
 - Yosry Ahmed wrote a series which fixes the memcg reclaim target
   beancounting.
 
 - David Hildenbrand has fixed some of our MM selftests for 32-bit
   machines.
 
 - Many singleton patches, as usual.
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Merge tag 'mm-stable-2022-12-13' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM updates from Andrew Morton:

 - More userfaultfs work from Peter Xu

 - Several convert-to-folios series from Sidhartha Kumar and Huang Ying

 - Some filemap cleanups from Vishal Moola

 - David Hildenbrand added the ability to selftest anon memory COW
   handling

 - Some cpuset simplifications from Liu Shixin

 - Addition of vmalloc tracing support by Uladzislau Rezki

 - Some pagecache folioifications and simplifications from Matthew
   Wilcox

 - A pagemap cleanup from Kefeng Wang: we have VM_ACCESS_FLAGS, so use
   it

 - Miguel Ojeda contributed some cleanups for our use of the
   __no_sanitize_thread__ gcc keyword.

   This series should have been in the non-MM tree, my bad

 - Naoya Horiguchi improved the interaction between memory poisoning and
   memory section removal for huge pages

 - DAMON cleanups and tuneups from SeongJae Park

 - Tony Luck fixed the handling of COW faults against poisoned pages

 - Peter Xu utilized the PTE marker code for handling swapin errors

 - Hugh Dickins reworked compound page mapcount handling, simplifying it
   and making it more efficient

 - Removal of the autonuma savedwrite infrastructure from Nadav Amit and
   David Hildenbrand

 - zram support for multiple compression streams from Sergey Senozhatsky

 - David Hildenbrand reworked the GUP code's R/O long-term pinning so
   that drivers no longer need to use the FOLL_FORCE workaround which
   didn't work very well anyway

 - Mel Gorman altered the page allocator so that local IRQs can remnain
   enabled during per-cpu page allocations

 - Vishal Moola removed the try_to_release_page() wrapper

 - Stefan Roesch added some per-BDI sysfs tunables which are used to
   prevent network block devices from dirtying excessive amounts of
   pagecache

 - David Hildenbrand did some cleanup and repair work on KSM COW
   breaking

 - Nhat Pham and Johannes Weiner have implemented writeback in zswap's
   zsmalloc backend

 - Brian Foster has fixed a longstanding corner-case oddity in
   file[map]_write_and_wait_range()

 - sparse-vmemmap changes for MIPS, LoongArch and NIOS2 from Feiyang
   Chen

 - Shiyang Ruan has done some work on fsdax, to make its reflink mode
   work better under xfstests. Better, but still not perfect

 - Christoph Hellwig has removed the .writepage() method from several
   filesystems. They only need .writepages()

 - Yosry Ahmed wrote a series which fixes the memcg reclaim target
   beancounting

 - David Hildenbrand has fixed some of our MM selftests for 32-bit
   machines

 - Many singleton patches, as usual

* tag 'mm-stable-2022-12-13' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (313 commits)
  mm/hugetlb: set head flag before setting compound_order in __prep_compound_gigantic_folio
  mm: mmu_gather: allow more than one batch of delayed rmaps
  mm: fix typo in struct pglist_data code comment
  kmsan: fix memcpy tests
  mm: add cond_resched() in swapin_walk_pmd_entry()
  mm: do not show fs mm pc for VM_LOCKONFAULT pages
  selftests/vm: ksm_functional_tests: fixes for 32bit
  selftests/vm: cow: fix compile warning on 32bit
  selftests/vm: madv_populate: fix missing MADV_POPULATE_(READ|WRITE) definitions
  mm/gup_test: fix PIN_LONGTERM_TEST_READ with highmem
  mm,thp,rmap: fix races between updates of subpages_mapcount
  mm: memcg: fix swapcached stat accounting
  mm: add nodes= arg to memory.reclaim
  mm: disable top-tier fallback to reclaim on proactive reclaim
  selftests: cgroup: make sure reclaim target memcg is unprotected
  selftests: cgroup: refactor proactive reclaim code to reclaim_until()
  mm: memcg: fix stale protection of reclaim target memcg
  mm/mmap: properly unaccount memory on mas_preallocate() failure
  omfs: remove ->writepage
  jfs: remove ->writepage
  ...
2022-12-13 19:29:45 -08:00
Linus Torvalds
7e68dd7d07 Networking changes for 6.2.
Core
 ----
  - Allow live renaming when an interface is up
 
  - Add retpoline wrappers for tc, improving considerably the
    performances of complex queue discipline configurations.
 
  - Add inet drop monitor support.
 
  - A few GRO performance improvements.
 
  - Add infrastructure for atomic dev stats, addressing long standing
    data races.
 
  - De-duplicate common code between OVS and conntrack offloading
    infrastructure.
 
  - A bunch of UBSAN_BOUNDS/FORTIFY_SOURCE improvements.
 
  - Netfilter: introduce packet parser for tunneled packets
 
  - Replace IPVS timer-based estimators with kthreads to scale up
    the workload with the number of available CPUs.
 
  - Add the helper support for connection-tracking OVS offload.
 
 BPF
 ---
  - Support for user defined BPF objects: the use case is to allocate
    own objects, build own object hierarchies and use the building
    blocks to build own data structures flexibly, for example, linked
    lists in BPF.
 
  - Make cgroup local storage available to non-cgroup attached BPF
    programs.
 
  - Avoid unnecessary deadlock detection and failures wrt BPF task
    storage helpers.
 
  - A relevant bunch of BPF verifier fixes and improvements.
 
  - Veristat tool improvements to support custom filtering, sorting,
    and replay of results.
 
  - Add LLVM disassembler as default library for dumping JITed code.
 
  - Lots of new BPF documentation for various BPF maps.
 
  - Add bpf_rcu_read_{,un}lock() support for sleepable programs.
 
  - Add RCU grace period chaining to BPF to wait for the completion
    of access from both sleepable and non-sleepable BPF programs.
 
  - Add support storing struct task_struct objects as kptrs in maps.
 
  - Improve helper UAPI by explicitly defining BPF_FUNC_xxx integer
    values.
 
  - Add libbpf *_opts API-variants for bpf_*_get_fd_by_id() functions.
 
 Protocols
 ---------
  - TCP: implement Protective Load Balancing across switch links.
 
  - TCP: allow dynamically disabling TCP-MD5 static key, reverting
    back to fast[er]-path.
 
  - UDP: Introduce optional per-netns hash lookup table.
 
  - IPv6: simplify and cleanup sockets disposal.
 
  - Netlink: support different type policies for each generic
    netlink operation.
 
  - MPTCP: add MSG_FASTOPEN and FastOpen listener side support.
 
  - MPTCP: add netlink notification support for listener sockets
    events.
 
  - SCTP: add VRF support, allowing sctp sockets binding to VRF
    devices.
 
  - Add bridging MAC Authentication Bypass (MAB) support.
 
  - Extensions for Ethernet VPN bridging implementation to better
    support multicast scenarios.
 
  - More work for Wi-Fi 7 support, comprising conversion of all
    the existing drivers to internal TX queue usage.
 
  - IPSec: introduce a new offload type (packet offload) allowing
    complete header processing and crypto offloading.
 
  - IPSec: extended ack support for more descriptive XFRM error
    reporting.
 
  - RXRPC: increase SACK table size and move processing into a
    per-local endpoint kernel thread, reducing considerably the
    required locking.
 
  - IEEE 802154: synchronous send frame and extended filtering
    support, initial support for scanning available 15.4 networks.
 
  - Tun: bump the link speed from 10Mbps to 10Gbps.
 
  - Tun/VirtioNet: implement UDP segmentation offload support.
 
 Driver API
 ----------
 
  - PHY/SFP: improve power level switching between standard
    level 1 and the higher power levels.
 
  - New API for netdev <-> devlink_port linkage.
 
  - PTP: convert existing drivers to new frequency adjustment
    implementation.
 
  - DSA: add support for rx offloading.
 
  - Autoload DSA tagging driver when dynamically changing protocol.
 
  - Add new PCP and APPTRUST attributes to Data Center Bridging.
 
  - Add configuration support for 800Gbps link speed.
 
  - Add devlink port function attribute to enable/disable RoCE and
    migratable.
 
  - Extend devlink-rate to support strict prioriry and weighted fair
    queuing.
 
  - Add devlink support to directly reading from region memory.
 
  - New device tree helper to fetch MAC address from nvmem.
 
  - New big TCP helper to simplify temporary header stripping.
 
 New hardware / drivers
 ----------------------
 
  - Ethernet:
    - Marvel Octeon CNF95N and CN10KB Ethernet Switches.
    - Marvel Prestera AC5X Ethernet Switch.
    - WangXun 10 Gigabit NIC.
    - Motorcomm yt8521 Gigabit Ethernet.
    - Microchip ksz9563 Gigabit Ethernet Switch.
    - Microsoft Azure Network Adapter.
    - Linux Automation 10Base-T1L adapter.
 
  - PHY:
    - Aquantia AQR112 and AQR412.
    - Motorcomm YT8531S.
 
  - PTP:
    - Orolia ART-CARD.
 
  - WiFi:
    - MediaTek Wi-Fi 7 (802.11be) devices.
    - RealTek rtw8821cu, rtw8822bu, rtw8822cu and rtw8723du USB
      devices.
 
  - Bluetooth:
    - Broadcom BCM4377/4378/4387 Bluetooth chipsets.
    - Realtek RTL8852BE and RTL8723DS.
    - Cypress.CYW4373A0 WiFi + Bluetooth combo device.
 
 Drivers
 -------
  - CAN:
    - gs_usb: bus error reporting support.
    - kvaser_usb: listen only and bus error reporting support.
 
  - Ethernet NICs:
    - Intel (100G):
      - extend action skbedit to RX queue mapping.
      - implement devlink-rate support.
      - support direct read from memory.
    - nVidia/Mellanox (mlx5):
      - SW steering improvements, increasing rules update rate.
      - Support for enhanced events compression.
      - extend H/W offload packet manipulation capabilities.
      - implement IPSec packet offload mode.
    - nVidia/Mellanox (mlx4):
      - better big TCP support.
    - Netronome Ethernet NICs (nfp):
      - IPsec offload support.
      - add support for multicast filter.
    - Broadcom:
      - RSS and PTP support improvements.
    - AMD/SolarFlare:
      - netlink extened ack improvements.
      - add basic flower matches to offload, and related stats.
    - Virtual NICs:
      - ibmvnic: introduce affinity hint support.
    - small / embedded:
      - FreeScale fec: add initial XDP support.
      - Marvel mv643xx_eth: support MII/GMII/RGMII modes for Kirkwood.
      - TI am65-cpsw: add suspend/resume support.
      - Mediatek MT7986: add RX wireless wthernet dispatch support.
      - Realtek 8169: enable GRO software interrupt coalescing per
        default.
 
  - Ethernet high-speed switches:
    - Microchip (sparx5):
      - add support for Sparx5 TC/flower H/W offload via VCAP.
    - Mellanox mlxsw:
      - add 802.1X and MAC Authentication Bypass offload support.
      - add ip6gre support.
 
  - Embedded Ethernet switches:
    - Mediatek (mtk_eth_soc):
      - improve PCS implementation, add DSA untag support.
      - enable flow offload support.
    - Renesas:
      - add rswitch R-Car Gen4 gPTP support.
    - Microchip (lan966x):
      - add full XDP support.
      - add TC H/W offload via VCAP.
      - enable PTP on bridge interfaces.
    - Microchip (ksz8):
      - add MTU support for KSZ8 series.
 
  - Qualcomm 802.11ax WiFi (ath11k):
    - support configuring channel dwell time during scan.
 
  - MediaTek WiFi (mt76):
    - enable Wireless Ethernet Dispatch (WED) offload support.
    - add ack signal support.
    - enable coredump support.
    - remain_on_channel support.
 
  - Intel WiFi (iwlwifi):
    - enable Wi-Fi 7 Extremely High Throughput (EHT) PHY capabilities.
    - 320 MHz channels support.
 
  - RealTek WiFi (rtw89):
    - new dynamic header firmware format support.
    - wake-over-WLAN support.
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-next-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Paolo Abeni:
 "Core:

   - Allow live renaming when an interface is up

   - Add retpoline wrappers for tc, improving considerably the
     performances of complex queue discipline configurations

   - Add inet drop monitor support

   - A few GRO performance improvements

   - Add infrastructure for atomic dev stats, addressing long standing
     data races

   - De-duplicate common code between OVS and conntrack offloading
     infrastructure

   - A bunch of UBSAN_BOUNDS/FORTIFY_SOURCE improvements

   - Netfilter: introduce packet parser for tunneled packets

   - Replace IPVS timer-based estimators with kthreads to scale up the
     workload with the number of available CPUs

   - Add the helper support for connection-tracking OVS offload

  BPF:

   - Support for user defined BPF objects: the use case is to allocate
     own objects, build own object hierarchies and use the building
     blocks to build own data structures flexibly, for example, linked
     lists in BPF

   - Make cgroup local storage available to non-cgroup attached BPF
     programs

   - Avoid unnecessary deadlock detection and failures wrt BPF task
     storage helpers

   - A relevant bunch of BPF verifier fixes and improvements

   - Veristat tool improvements to support custom filtering, sorting,
     and replay of results

   - Add LLVM disassembler as default library for dumping JITed code

   - Lots of new BPF documentation for various BPF maps

   - Add bpf_rcu_read_{,un}lock() support for sleepable programs

   - Add RCU grace period chaining to BPF to wait for the completion of
     access from both sleepable and non-sleepable BPF programs

   - Add support storing struct task_struct objects as kptrs in maps

   - Improve helper UAPI by explicitly defining BPF_FUNC_xxx integer
     values

   - Add libbpf *_opts API-variants for bpf_*_get_fd_by_id() functions

  Protocols:

   - TCP: implement Protective Load Balancing across switch links

   - TCP: allow dynamically disabling TCP-MD5 static key, reverting back
     to fast[er]-path

   - UDP: Introduce optional per-netns hash lookup table

   - IPv6: simplify and cleanup sockets disposal

   - Netlink: support different type policies for each generic netlink
     operation

   - MPTCP: add MSG_FASTOPEN and FastOpen listener side support

   - MPTCP: add netlink notification support for listener sockets events

   - SCTP: add VRF support, allowing sctp sockets binding to VRF devices

   - Add bridging MAC Authentication Bypass (MAB) support

   - Extensions for Ethernet VPN bridging implementation to better
     support multicast scenarios

   - More work for Wi-Fi 7 support, comprising conversion of all the
     existing drivers to internal TX queue usage

   - IPSec: introduce a new offload type (packet offload) allowing
     complete header processing and crypto offloading

   - IPSec: extended ack support for more descriptive XFRM error
     reporting

   - RXRPC: increase SACK table size and move processing into a
     per-local endpoint kernel thread, reducing considerably the
     required locking

   - IEEE 802154: synchronous send frame and extended filtering support,
     initial support for scanning available 15.4 networks

   - Tun: bump the link speed from 10Mbps to 10Gbps

   - Tun/VirtioNet: implement UDP segmentation offload support

  Driver API:

   - PHY/SFP: improve power level switching between standard level 1 and
     the higher power levels

   - New API for netdev <-> devlink_port linkage

   - PTP: convert existing drivers to new frequency adjustment
     implementation

   - DSA: add support for rx offloading

   - Autoload DSA tagging driver when dynamically changing protocol

   - Add new PCP and APPTRUST attributes to Data Center Bridging

   - Add configuration support for 800Gbps link speed

   - Add devlink port function attribute to enable/disable RoCE and
     migratable

   - Extend devlink-rate to support strict prioriry and weighted fair
     queuing

   - Add devlink support to directly reading from region memory

   - New device tree helper to fetch MAC address from nvmem

   - New big TCP helper to simplify temporary header stripping

  New hardware / drivers:

   - Ethernet:
      - Marvel Octeon CNF95N and CN10KB Ethernet Switches
      - Marvel Prestera AC5X Ethernet Switch
      - WangXun 10 Gigabit NIC
      - Motorcomm yt8521 Gigabit Ethernet
      - Microchip ksz9563 Gigabit Ethernet Switch
      - Microsoft Azure Network Adapter
      - Linux Automation 10Base-T1L adapter

   - PHY:
      - Aquantia AQR112 and AQR412
      - Motorcomm YT8531S

   - PTP:
      - Orolia ART-CARD

   - WiFi:
      - MediaTek Wi-Fi 7 (802.11be) devices
      - RealTek rtw8821cu, rtw8822bu, rtw8822cu and rtw8723du USB
        devices

   - Bluetooth:
      - Broadcom BCM4377/4378/4387 Bluetooth chipsets
      - Realtek RTL8852BE and RTL8723DS
      - Cypress.CYW4373A0 WiFi + Bluetooth combo device

  Drivers:

   - CAN:
      - gs_usb: bus error reporting support
      - kvaser_usb: listen only and bus error reporting support

   - Ethernet NICs:
      - Intel (100G):
         - extend action skbedit to RX queue mapping
         - implement devlink-rate support
         - support direct read from memory
      - nVidia/Mellanox (mlx5):
         - SW steering improvements, increasing rules update rate
         - Support for enhanced events compression
         - extend H/W offload packet manipulation capabilities
         - implement IPSec packet offload mode
      - nVidia/Mellanox (mlx4):
         - better big TCP support
      - Netronome Ethernet NICs (nfp):
         - IPsec offload support
         - add support for multicast filter
      - Broadcom:
         - RSS and PTP support improvements
      - AMD/SolarFlare:
         - netlink extened ack improvements
         - add basic flower matches to offload, and related stats
      - Virtual NICs:
         - ibmvnic: introduce affinity hint support
      - small / embedded:
         - FreeScale fec: add initial XDP support
         - Marvel mv643xx_eth: support MII/GMII/RGMII modes for Kirkwood
         - TI am65-cpsw: add suspend/resume support
         - Mediatek MT7986: add RX wireless wthernet dispatch support
         - Realtek 8169: enable GRO software interrupt coalescing per
           default

   - Ethernet high-speed switches:
      - Microchip (sparx5):
         - add support for Sparx5 TC/flower H/W offload via VCAP
      - Mellanox mlxsw:
         - add 802.1X and MAC Authentication Bypass offload support
         - add ip6gre support

   - Embedded Ethernet switches:
      - Mediatek (mtk_eth_soc):
         - improve PCS implementation, add DSA untag support
         - enable flow offload support
      - Renesas:
         - add rswitch R-Car Gen4 gPTP support
      - Microchip (lan966x):
         - add full XDP support
         - add TC H/W offload via VCAP
         - enable PTP on bridge interfaces
      - Microchip (ksz8):
         - add MTU support for KSZ8 series

   - Qualcomm 802.11ax WiFi (ath11k):
      - support configuring channel dwell time during scan

   - MediaTek WiFi (mt76):
      - enable Wireless Ethernet Dispatch (WED) offload support
      - add ack signal support
      - enable coredump support
      - remain_on_channel support

   - Intel WiFi (iwlwifi):
      - enable Wi-Fi 7 Extremely High Throughput (EHT) PHY capabilities
      - 320 MHz channels support

   - RealTek WiFi (rtw89):
      - new dynamic header firmware format support
      - wake-over-WLAN support"

* tag 'net-next-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2002 commits)
  ipvs: fix type warning in do_div() on 32 bit
  net: lan966x: Remove a useless test in lan966x_ptp_add_trap()
  net: ipa: add IPA v4.7 support
  dt-bindings: net: qcom,ipa: Add SM6350 compatible
  bnxt: Use generic HBH removal helper in tx path
  IPv6/GRO: generic helper to remove temporary HBH/jumbo header in driver
  selftests: forwarding: Add bridge MDB test
  selftests: forwarding: Rename bridge_mdb test
  bridge: mcast: Support replacement of MDB port group entries
  bridge: mcast: Allow user space to specify MDB entry routing protocol
  bridge: mcast: Allow user space to add (*, G) with a source list and filter mode
  bridge: mcast: Add support for (*, G) with a source list and filter mode
  bridge: mcast: Avoid arming group timer when (S, G) corresponds to a source
  bridge: mcast: Add a flag for user installed source entries
  bridge: mcast: Expose __br_multicast_del_group_src()
  bridge: mcast: Expose br_multicast_new_group_src()
  bridge: mcast: Add a centralized error path
  bridge: mcast: Place netlink policy before validation functions
  bridge: mcast: Split (*, G) and (S, G) addition into different functions
  bridge: mcast: Do not derive entry type from its filter mode
  ...
2022-12-13 15:47:48 -08:00
Linus Torvalds
4cb1fc6fff ARM updates for 6.2
- update unwinder to cope with module PLTs
 - enable UBSAN on ARM
 - improve kernel fault message
 - update UEFI runtime page tables dump
 - avoid clang's __aeabi_uldivmod generated in NWFPE code
 - disable FIQs on CPU shutdown paths
 - update XOR register usage
 - a number of build updates (using .arch, thread pointer,
   removal of lazy evaluation in Makefile)
 - conversion of stacktrace code to stackwalk
 - findbit assembly updates
 - hwcap feature updates for ARMv8 CPUs
 - instruction dump updates for big-endian platforms
 - support for function error injection
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Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm

Pull ARM updates from Russell King:

 - update unwinder to cope with module PLTs

 - enable UBSAN on ARM

 - improve kernel fault message

 - update UEFI runtime page tables dump

 - avoid clang's __aeabi_uldivmod generated in NWFPE code

 - disable FIQs on CPU shutdown paths

 - update XOR register usage

 - a number of build updates (using .arch, thread pointer, removal of
   lazy evaluation in Makefile)

 - conversion of stacktrace code to stackwalk

 - findbit assembly updates

 - hwcap feature updates for ARMv8 CPUs

 - instruction dump updates for big-endian platforms

 - support for function error injection

* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: (31 commits)
  ARM: 9279/1: support function error injection
  ARM: 9277/1: Make the dumped instructions are consistent with the disassembled ones
  ARM: 9276/1: Refactor dump_instr()
  ARM: 9275/1: Drop '-mthumb' from AFLAGS_ISA
  ARM: 9274/1: Add hwcap for Speculative Store Bypassing Safe
  ARM: 9273/1: Add hwcap for Speculation Barrier(SB)
  ARM: 9272/1: vfp: Add hwcap for FEAT_AA32I8MM
  ARM: 9271/1: vfp: Add hwcap for FEAT_AA32BF16
  ARM: 9270/1: vfp: Add hwcap for FEAT_FHM
  ARM: 9269/1: vfp: Add hwcap for FEAT_DotProd
  ARM: 9268/1: vfp: Add hwcap FPHP and ASIMDHP for FEAT_FP16
  ARM: 9267/1: Define Armv8 registers in AArch32 state
  ARM: findbit: add unwinder information
  ARM: findbit: operate by words
  ARM: findbit: convert to macros
  ARM: findbit: provide more efficient ARMv7 implementation
  ARM: findbit: document ARMv5 bit offset calculation
  ARM: 9259/1: stacktrace: Convert stacktrace to generic ARCH_STACKWALK
  ARM: 9258/1: stacktrace: Make stack walk callback consistent with generic code
  ARM: 9265/1: pass -march= only to compiler
  ...
2022-12-13 15:22:14 -08:00
Linus Torvalds
fc4c9f4504 EFI updates for v6.2:
- Refactor the zboot code so that it incorporates all the EFI stub
   logic, rather than calling the decompressed kernel as a EFI app.
 - Add support for initrd= command line option to x86 mixed mode.
 - Allow initrd= to be used with arbitrary EFI accessible file systems
   instead of just the one the kernel itself was loaded from.
 - Move some x86-only handling and manipulation of the EFI memory map
   into arch/x86, as it is not used anywhere else.
 - More flexible handling of any random seeds provided by the boot
   environment (i.e., systemd-boot) so that it becomes available much
   earlier during the boot.
 - Allow improved arch-agnostic EFI support in loaders, by setting a
   uniform baseline of supported features, and adding a generic magic
   number to the DOS/PE header. This should allow loaders such as GRUB or
   systemd-boot to reduce the amount of arch-specific handling
   substantially.
 - (arm64) Run EFI runtime services from a dedicated stack, and use it to
   recover from synchronous exceptions that might occur in the firmware
   code.
 - (arm64) Ensure that we don't allocate memory outside of the 48-bit
   addressable physical range.
 - Make EFI pstore record size configurable
 - Add support for decoding CXL specific CPER records
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Merge tag 'efi-next-for-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi

Pull EFI updates from Ard Biesheuvel:
 "Another fairly sizable pull request, by EFI subsystem standards.

  Most of the work was done by me, some of it in collaboration with the
  distro and bootloader folks (GRUB, systemd-boot), where the main focus
  has been on removing pointless per-arch differences in the way EFI
  boots a Linux kernel.

   - Refactor the zboot code so that it incorporates all the EFI stub
     logic, rather than calling the decompressed kernel as a EFI app.

   - Add support for initrd= command line option to x86 mixed mode.

   - Allow initrd= to be used with arbitrary EFI accessible file systems
     instead of just the one the kernel itself was loaded from.

   - Move some x86-only handling and manipulation of the EFI memory map
     into arch/x86, as it is not used anywhere else.

   - More flexible handling of any random seeds provided by the boot
     environment (i.e., systemd-boot) so that it becomes available much
     earlier during the boot.

   - Allow improved arch-agnostic EFI support in loaders, by setting a
     uniform baseline of supported features, and adding a generic magic
     number to the DOS/PE header. This should allow loaders such as GRUB
     or systemd-boot to reduce the amount of arch-specific handling
     substantially.

   - (arm64) Run EFI runtime services from a dedicated stack, and use it
     to recover from synchronous exceptions that might occur in the
     firmware code.

   - (arm64) Ensure that we don't allocate memory outside of the 48-bit
     addressable physical range.

   - Make EFI pstore record size configurable

   - Add support for decoding CXL specific CPER records"

* tag 'efi-next-for-v6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi: (43 commits)
  arm64: efi: Recover from synchronous exceptions occurring in firmware
  arm64: efi: Execute runtime services from a dedicated stack
  arm64: efi: Limit allocations to 48-bit addressable physical region
  efi: Put Linux specific magic number in the DOS header
  efi: libstub: Always enable initrd command line loader and bump version
  efi: stub: use random seed from EFI variable
  efi: vars: prohibit reading random seed variables
  efi: random: combine bootloader provided RNG seed with RNG protocol output
  efi/cper, cxl: Decode CXL Error Log
  efi/cper, cxl: Decode CXL Protocol Error Section
  efi: libstub: fix efi_load_initrd_dev_path() kernel-doc comment
  efi: x86: Move EFI runtime map sysfs code to arch/x86
  efi: runtime-maps: Clarify purpose and enable by default for kexec
  efi: pstore: Add module parameter for setting the record size
  efi: xen: Set EFI_PARAVIRT for Xen dom0 boot on all architectures
  efi: memmap: Move manipulation routines into x86 arch tree
  efi: memmap: Move EFI fake memmap support into x86 arch tree
  efi: libstub: Undeprecate the command line initrd loader
  efi: libstub: Add mixed mode support to command line initrd loader
  efi: libstub: Permit mixed mode return types other than efi_status_t
  ...
2022-12-13 14:31:47 -08:00
Linus Torvalds
a594533df0 drm for 6.2:
Initial accel subsystem support. There are no drivers yet, just the framework.
 
 New driver:
 - ofdrm - replacement for offb
 
 fbdev:
 - add support for nomodeset
 
 fourcc:
 - add Vivante tiled modifier
 
 core:
 - atomic-helpers: CRTC primary plane test fixes, fb access hooks
 - connector: TV API consistency, cmdline parser improvements
 - send connector hotplug on cleanup
 - sort makefile objects
 
 tests:
 - sort kunit tests
 - improve DP-MST tests
 - add kunit helpers to create a device
 
 sched:
 - module param for scheduling policy
 - refcounting fix
 
 buddy:
 - add back random seed log
 
 ttm:
 - convert ttm_resource to size_t
 - optimize pool allocations
 
 edid:
 - HFVSDB parsing support fixes
 - logging/debug improvements
 - DSC quirks
 
 dma-buf:
 - Add unlocked vmap and attachment mapping
 - move drivers to common locking convention
 - locking improvements
 
 firmware:
 - new API for rPI firmware and vc4
 
 xilinx:
 - zynqmp: displayport bridge support
 - dpsub fix
 
 bridge:
 - adv7533: Remove dynamic lane switching
 - it6505: Runtime PM support, sync improvements
 - ps8640: Handle AUX defer messages
 - tc358775: Drop soft-reset over I2C
 
 panel:
 - panel-edp: Add INX N116BGE-EA2 C2 and C4 support.
 - Jadard JD9365DA-H3
 - NewVision NV3051D
 
 amdgpu:
 - DCN support on ARM
 - DCN 2.1 secure display
 - Sienna Cichlid mode2 reset fixes
 - new GC 11.x firmware versions
 - drop AMD specific DSC workarounds in favour of drm code
 - clang warning fixes
 - scheduler rework
 - SR-IOV fixes
 - GPUVM locking fixes
 - fix memory leak in CS IOCTL error path
 - flexible array updates
 - enable new GC/PSP/SMU/NBIO IP
 - GFX preemption support for gfx9
 
 amdkfd:
 - cache size fixes
 - userptr fixes
 - enable cooperative launch on gfx 10.3
 - enable GC 11.0.4 KFD support
 
 radeon:
 - replace kmap with kmap_local_page
 - ACPI ref count fix
 - HDA audio notifier support
 
 i915:
 - DG2 enabled by default
 - MTL enablement work
 - hotplug refactoring
 - VBT improvements
 - Display and watermark refactoring
 - ADL-P workaround
 - temp disable runtime_pm for discrete-
 - fix for A380 as a secondary GPU
 - Wa_18017747507 for DG2
 - CS timestamp support fixes for gen5 and earlier
 - never purge busy TTM objects
 - use i915_sg_dma_sizes for all backends
 - demote GuC kernel contexts to normal priority
 - gvt: refactor for new MDEV interface
 - enable DC power states on eDP ports
 - fix gen 2/3 workarounds
 
 nouveau:
 - fix page fault handling
 - Ampere acceleration support
 - driver stability improvements
 - nva3 backlight support
 
 msm:
 - MSM_INFO_GET_FLAGS support
 - DPU: XR30 and P010 image formats
 - Qualcomm SM6115 support
 - DSI PHY support for QCM2290
 - HDMI: refactored dev init path
 - remove exclusive-fence hack
 - fix speed-bin detection
 - enable clamp to idle on 7c3
 - improved hangcheck detection
 
 vmwgfx:
 - fb and cursor refactoring
 - convert to generic hashtable
 - cursor improvements
 
 etnaviv:
 - hw workarounds
 - softpin MMU fixes
 
 ast:
 - atomic gamma LUT support
 - convert to SHMEM
 
 lcdif:
 - support YUV planes
 - Increase DMA burst size
 - FIFO threshold tuning
 
 meson:
 - fix return type of cvbs mode_valid
 
 mgag200:
 - fix PLL setup on some revisions
 
 sun4i:
 - A100 and D1 support
 
 udl:
 - modesetting improvements
 - hot unplug support
 
 vc4:
 - support PAL-M
 - fix regression preventing 4K @ 60Hz
 - fix NULL ptr deref
 
 v3d:
 - switch to drm managed resources
 
 renesas:
 - RZ/G2L DSI support
 - DU Kconfig cleanup
 
 mediatek:
 - fixup dpi and hdmi
 - MT8188 dpi support
 - MT8195 AFBC support
 
 tegra:
 - NVDEC hardware on Tegra234 SoC
 
 hdlcd:
 - switch to drm managed resources
 
 ingenic:
 - fix registration error path
 
 hisilicon:
 - convert to drm_mode_init
 
 maildp:
 - use managed resources
 
 mtk:
 - use drm_mode_init
 
 rockchip:
 - use drm_mode_copy
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Merge tag 'drm-next-2022-12-13' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "The biggest highlight is that the accel subsystem framework is merged.
  Hopefully for 6.3 we will be able to line up a driver to use it.

  In drivers land, i915 enables DG2 support by default now, and nouveau
  has a big stability refactoring and initial ampere support, AMD
  includes new hw IP support and should build on ARM again. There is
  also an ofdrm driver to take over offb on platforms it's used.

  Stuff outside my tree, the dma-buf patches hit a few places, the vc4
  firmware changes also do, and i915 has some interactions with MEI for
  discrete GPUs. I think all of those should have been acked/reviewed by
  relevant parties.

  New driver:
   - ofdrm - replacement for offb

  fbdev:
   - add support for nomodeset

  fourcc:
   - add Vivante tiled modifier

  core:
   - atomic-helpers: CRTC primary plane test fixes, fb access hooks
   - connector: TV API consistency, cmdline parser improvements
   - send connector hotplug on cleanup
   - sort makefile objects

  tests:
   - sort kunit tests
   - improve DP-MST tests
   - add kunit helpers to create a device

  sched:
   - module param for scheduling policy
   - refcounting fix

  buddy:
   - add back random seed log

  ttm:
   - convert ttm_resource to size_t
   - optimize pool allocations

  edid:
   - HFVSDB parsing support fixes
   - logging/debug improvements
   - DSC quirks

  dma-buf:
   - Add unlocked vmap and attachment mapping
   - move drivers to common locking convention
   - locking improvements

  firmware:
   - new API for rPI firmware and vc4

  xilinx:
   - zynqmp: displayport bridge support
   - dpsub fix

  bridge:
   - adv7533: Remove dynamic lane switching
   - it6505: Runtime PM support, sync improvements
   - ps8640: Handle AUX defer messages
   - tc358775: Drop soft-reset over I2C

  panel:
   - panel-edp: Add INX N116BGE-EA2 C2 and C4 support.
   - Jadard JD9365DA-H3
   - NewVision NV3051D

  amdgpu:
   - DCN support on ARM
   - DCN 2.1 secure display
   - Sienna Cichlid mode2 reset fixes
   - new GC 11.x firmware versions
   - drop AMD specific DSC workarounds in favour of drm code
   - clang warning fixes
   - scheduler rework
   - SR-IOV fixes
   - GPUVM locking fixes
   - fix memory leak in CS IOCTL error path
   - flexible array updates
   - enable new GC/PSP/SMU/NBIO IP
   - GFX preemption support for gfx9

  amdkfd:
   - cache size fixes
   - userptr fixes
   - enable cooperative launch on gfx 10.3
   - enable GC 11.0.4 KFD support

  radeon:
   - replace kmap with kmap_local_page
   - ACPI ref count fix
   - HDA audio notifier support

  i915:
   - DG2 enabled by default
   - MTL enablement work
   - hotplug refactoring
   - VBT improvements
   - Display and watermark refactoring
   - ADL-P workaround
   - temp disable runtime_pm for discrete-
   - fix for A380 as a secondary GPU
   - Wa_18017747507 for DG2
   - CS timestamp support fixes for gen5 and earlier
   - never purge busy TTM objects
   - use i915_sg_dma_sizes for all backends
   - demote GuC kernel contexts to normal priority
   - gvt: refactor for new MDEV interface
   - enable DC power states on eDP ports
   - fix gen 2/3 workarounds

  nouveau:
   - fix page fault handling
   - Ampere acceleration support
   - driver stability improvements
   - nva3 backlight support

  msm:
   - MSM_INFO_GET_FLAGS support
   - DPU: XR30 and P010 image formats
   - Qualcomm SM6115 support
   - DSI PHY support for QCM2290
   - HDMI: refactored dev init path
   - remove exclusive-fence hack
   - fix speed-bin detection
   - enable clamp to idle on 7c3
   - improved hangcheck detection

  vmwgfx:
   - fb and cursor refactoring
   - convert to generic hashtable
   - cursor improvements

  etnaviv:
   - hw workarounds
   - softpin MMU fixes

  ast:
   - atomic gamma LUT support
   - convert to SHMEM

  lcdif:
   - support YUV planes
   - Increase DMA burst size
   - FIFO threshold tuning

  meson:
   - fix return type of cvbs mode_valid

  mgag200:
   - fix PLL setup on some revisions

  sun4i:
   - A100 and D1 support

  udl:
   - modesetting improvements
   - hot unplug support

  vc4:
   - support PAL-M
   - fix regression preventing 4K @ 60Hz
   - fix NULL ptr deref

  v3d:
   - switch to drm managed resources

  renesas:
   - RZ/G2L DSI support
   - DU Kconfig cleanup

  mediatek:
   - fixup dpi and hdmi
   - MT8188 dpi support
   - MT8195 AFBC support

  tegra:
   - NVDEC hardware on Tegra234 SoC

  hdlcd:
   - switch to drm managed resources

  ingenic:
   - fix registration error path

  hisilicon:
   - convert to drm_mode_init

  maildp:
   - use managed resources

  mtk:
   - use drm_mode_init

  rockchip:
   - use drm_mode_copy"

* tag 'drm-next-2022-12-13' of git://anongit.freedesktop.org/drm/drm: (1397 commits)
  drm/amdgpu: fix mmhub register base coding error
  drm/amdgpu: add tmz support for GC IP v11.0.4
  drm/amdgpu: enable GFX Clock Gating control for GC IP v11.0.4
  drm/amdgpu: enable GFX Power Gating for GC IP v11.0.4
  drm/amdgpu: enable GFX IP v11.0.4 CG support
  drm/amdgpu: Make amdgpu_ring_mux functions as static
  drm/amdgpu: generally allow over-commit during BO allocation
  drm/amd/display: fix array index out of bound error in DCN32 DML
  drm/amd/display: 3.2.215
  drm/amd/display: set optimized required for comp buf changes
  drm/amd/display: Add debug option to skip PSR CRTC disable
  drm/amd/display: correct DML calc error of UrgentLatency
  drm/amd/display: correct static_screen_event_mask
  drm/amd/display: Ensure commit_streams returns the DC return code
  drm/amd/display: read invalid ddc pin status cause engine busy
  drm/amd/display: Bypass DET swath fill check for max clocks
  drm/amd/display: Disable uclk pstate for subvp pipes
  drm/amd/display: Fix DCN2.1 default DSC clocks
  drm/amd/display: Enable dp_hdmi21_pcon support
  drm/amd/display: prevent seamless boot on displays that don't have the preferred dig
  ...
2022-12-13 11:59:58 -08:00
Linus Torvalds
cdb9d35377 media updates for v6.2-rc1
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Merge tag 'media/v6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - DVB core changes to avoid refcount troubles and UAF

 - DVB API/core has gained support for DVB-C2 and DVB-S2X

 - New sensor drivers: ov08x40, ov4689.c, st-vgxy61 and tc358746.c

 - Removal of an unused sensor driver: s5k4ecgx

 - Move microchip_csi2dc to a new directory, named after the
   manufacturer

 - Add media controller support to Microship drivers

 - Old Atmel/Microship drivers that don't use media controler got moved
   to staging

 - New drivers added for Renesas RZ/G2L CRU and MIPI CSI-2 support

 - Allwinner A31 camera sensor driver code was now split into a bridge
   and a separate processor driver

 - Added a virtual stateless decoder driver in order to test core
   support for stateless drivers and test userspace apps using it

 - removed platform-based support for ov9650, as this is not used
   anymore

 - atomisp now uses videobuf2 and supports normal mmap mode

 - the imx7-media-csi driver got promoted from staging

 - rcar-vin driver has gained support for gen3 UDS (Up Down Scaler)

 - most i2c drivers now use I2C .probe_new() kAPI

 - lots of drivers fixes, cleanups and improvements

* tag 'media/v6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (544 commits)
  media: s5c73m3: Switch to GPIO descriptors
  media: i2c: s5k5baf: switch to using gpiod API
  media: i2c: s5k6a3: switch to using gpiod API
  media: imx: remove code for non-existing config IMX_GPT_ICAP
  media: si470x: Fix use-after-free in si470x_int_in_callback()
  media: staging: stkwebcam: Restore MEDIA_{USB,CAMERA}_SUPPORT dependencies
  media: coda: Add check for kmalloc
  media: coda: Add check for dcoda_iram_alloc
  dt-bindings: media: s5c73m3: Fix reset-gpio descriptor
  media: dt-bindings: allwinner: h6-vpu-g2: Add IOMMU reference property
  media: s5k4ecgx: Delete driver
  media: s5k4ecgx: Switch to GPIO descriptors
  media: Switch to use dev_err_probe() helper
  headers: Remove some left-over license text in include/uapi/linux/v4l2-*
  headers: Remove some left-over license text in include/uapi/linux/dvb/
  media: usb: pwc-uncompress: Use flex array destination for memcpy()
  media: s5p-mfc: Fix to handle reference queue during finishing
  media: s5p-mfc: Clear workbit to handle error condition
  media: s5p-mfc: Fix in register read and write for H264
  media: imx: Use get_mbus_config instead of parsing upstream DT endpoints
  ...
2022-12-13 11:36:58 -08:00
Linus Torvalds
8702f2c611 Non-MM patches for 6.2-rc1.
- A ptrace API cleanup series from Sergey Shtylyov
 
 - Fixes and cleanups for kexec from ye xingchen
 
 - nilfs2 updates from Ryusuke Konishi
 
 - squashfs feature work from Xiaoming Ni: permit configuration of the
   filesystem's compression concurrency from the mount command line.
 
 - A series from Akinobu Mita which addresses bound checking errors when
   writing to debugfs files.
 
 - A series from Yang Yingliang to address rapido memory leaks
 
 - A series from Zheng Yejian to address possible overflow errors in
   encode_comp_t().
 
 - And a whole shower of singleton patches all over the place.
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Merge tag 'mm-nonmm-stable-2022-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull non-MM updates from Andrew Morton:

 - A ptrace API cleanup series from Sergey Shtylyov

 - Fixes and cleanups for kexec from ye xingchen

 - nilfs2 updates from Ryusuke Konishi

 - squashfs feature work from Xiaoming Ni: permit configuration of the
   filesystem's compression concurrency from the mount command line

 - A series from Akinobu Mita which addresses bound checking errors when
   writing to debugfs files

 - A series from Yang Yingliang to address rapidio memory leaks

 - A series from Zheng Yejian to address possible overflow errors in
   encode_comp_t()

 - And a whole shower of singleton patches all over the place

* tag 'mm-nonmm-stable-2022-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (79 commits)
  ipc: fix memory leak in init_mqueue_fs()
  hfsplus: fix bug causing custom uid and gid being unable to be assigned with mount
  rapidio: devices: fix missing put_device in mport_cdev_open
  kcov: fix spelling typos in comments
  hfs: Fix OOB Write in hfs_asc2mac
  hfs: fix OOB Read in __hfs_brec_find
  relay: fix type mismatch when allocating memory in relay_create_buf()
  ocfs2: always read both high and low parts of dinode link count
  io-mapping: move some code within the include guarded section
  kernel: kcsan: kcsan_test: build without structleak plugin
  mailmap: update email for Iskren Chernev
  eventfd: change int to __u64 in eventfd_signal() ifndef CONFIG_EVENTFD
  rapidio: fix possible UAF when kfifo_alloc() fails
  relay: use strscpy() is more robust and safer
  cpumask: limit visibility of FORCE_NR_CPUS
  acct: fix potential integer overflow in encode_comp_t()
  acct: fix accuracy loss for input value of encode_comp_t()
  linux/init.h: include <linux/build_bug.h> and <linux/stringify.h>
  rapidio: rio: fix possible name leak in rio_register_mport()
  rapidio: fix possible name leaks when rio_add_device() fails
  ...
2022-12-12 17:28:58 -08:00
Linus Torvalds
268325bda5 Random number generator updates for Linux 6.2-rc1.
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Merge tag 'random-6.2-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random

Pull random number generator updates from Jason Donenfeld:

 - Replace prandom_u32_max() and various open-coded variants of it,
   there is now a new family of functions that uses fast rejection
   sampling to choose properly uniformly random numbers within an
   interval:

       get_random_u32_below(ceil) - [0, ceil)
       get_random_u32_above(floor) - (floor, U32_MAX]
       get_random_u32_inclusive(floor, ceil) - [floor, ceil]

   Coccinelle was used to convert all current users of
   prandom_u32_max(), as well as many open-coded patterns, resulting in
   improvements throughout the tree.

   I'll have a "late" 6.1-rc1 pull for you that removes the now unused
   prandom_u32_max() function, just in case any other trees add a new
   use case of it that needs to converted. According to linux-next,
   there may be two trivial cases of prandom_u32_max() reintroductions
   that are fixable with a 's/.../.../'. So I'll have for you a final
   conversion patch doing that alongside the removal patch during the
   second week.

   This is a treewide change that touches many files throughout.

 - More consistent use of get_random_canary().

 - Updates to comments, documentation, tests, headers, and
   simplification in configuration.

 - The arch_get_random*_early() abstraction was only used by arm64 and
   wasn't entirely useful, so this has been replaced by code that works
   in all relevant contexts.

 - The kernel will use and manage random seeds in non-volatile EFI
   variables, refreshing a variable with a fresh seed when the RNG is
   initialized. The RNG GUID namespace is then hidden from efivarfs to
   prevent accidental leakage.

   These changes are split into random.c infrastructure code used in the
   EFI subsystem, in this pull request, and related support inside of
   EFISTUB, in Ard's EFI tree. These are co-dependent for full
   functionality, but the order of merging doesn't matter.

 - Part of the infrastructure added for the EFI support is also used for
   an improvement to the way vsprintf initializes its siphash key,
   replacing an sleep loop wart.

 - The hardware RNG framework now always calls its correct random.c
   input function, add_hwgenerator_randomness(), rather than sometimes
   going through helpers better suited for other cases.

 - The add_latent_entropy() function has long been called from the fork
   handler, but is a no-op when the latent entropy gcc plugin isn't
   used, which is fine for the purposes of latent entropy.

   But it was missing out on the cycle counter that was also being mixed
   in beside the latent entropy variable. So now, if the latent entropy
   gcc plugin isn't enabled, add_latent_entropy() will expand to a call
   to add_device_randomness(NULL, 0), which adds a cycle counter,
   without the absent latent entropy variable.

 - The RNG is now reseeded from a delayed worker, rather than on demand
   when used. Always running from a worker allows it to make use of the
   CPU RNG on platforms like S390x, whose instructions are too slow to
   do so from interrupts. It also has the effect of adding in new inputs
   more frequently with more regularity, amounting to a long term
   transcript of random values. Plus, it helps a bit with the upcoming
   vDSO implementation (which isn't yet ready for 6.2).

 - The jitter entropy algorithm now tries to execute on many different
   CPUs, round-robining, in hopes of hitting even more memory latencies
   and other unpredictable effects. It also will mix in a cycle counter
   when the entropy timer fires, in addition to being mixed in from the
   main loop, to account more explicitly for fluctuations in that timer
   firing. And the state it touches is now kept within the same cache
   line, so that it's assured that the different execution contexts will
   cause latencies.

* tag 'random-6.2-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random: (23 commits)
  random: include <linux/once.h> in the right header
  random: align entropy_timer_state to cache line
  random: mix in cycle counter when jitter timer fires
  random: spread out jitter callback to different CPUs
  random: remove extraneous period and add a missing one in comments
  efi: random: refresh non-volatile random seed when RNG is initialized
  vsprintf: initialize siphash key using notifier
  random: add back async readiness notifier
  random: reseed in delayed work rather than on-demand
  random: always mix cycle counter in add_latent_entropy()
  hw_random: use add_hwgenerator_randomness() for early entropy
  random: modernize documentation comment on get_random_bytes()
  random: adjust comment to account for removed function
  random: remove early archrandom abstraction
  random: use random.trust_{bootloader,cpu} command line option only
  stackprotector: actually use get_random_canary()
  stackprotector: move get_random_canary() into stackprotector.h
  treewide: use get_random_u32_inclusive() when possible
  treewide: use get_random_u32_{above,below}() instead of manual loop
  treewide: use get_random_u32_below() instead of deprecated function
  ...
2022-12-12 16:22:22 -08:00
Linus Torvalds
add7695957 Perf events updates for v6.2:
- Thoroughly rewrite the data structures that implement perf task context handling,
    with the goal of fixing various quirks and unfeatures both in already merged,
    and in upcoming proposed code.
 
    The old data structure is the per task and per cpu perf_event_contexts:
 
          task_struct::perf_events_ctxp[] <-> perf_event_context <-> perf_cpu_context
               ^                                 |    ^     |           ^
               `---------------------------------'    |     `--> pmu ---'
                                                      v           ^
                                                 perf_event ------'
 
    In this new design this is replaced with a single task context and
    a single CPU context, plus intermediate data-structures:
 
          task_struct::perf_event_ctxp -> perf_event_context <- perf_cpu_context
               ^                           |   ^ ^
               `---------------------------'   | |
                                               | |    perf_cpu_pmu_context <--.
                                               | `----.    ^                  |
                                               |      |    |                  |
                                               |      v    v                  |
                                               | ,--> perf_event_pmu_context  |
                                               | |                            |
                                               | |                            |
                                               v v                            |
                                          perf_event ---> pmu ----------------'
 
    [ See commit bd27568117 for more details. ]
 
    This rewrite was developed by Peter Zijlstra and Ravi Bangoria.
 
  - Optimize perf_tp_event()
 
  - Update the Intel uncore PMU driver, extending it with UPI topology discovery
    on various hardware models.
 
  - Misc fixes & cleanups
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-core-2022-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf events updates from Ingo Molnar:

 - Thoroughly rewrite the data structures that implement perf task
   context handling, with the goal of fixing various quirks and
   unfeatures both in already merged, and in upcoming proposed code.

   The old data structure is the per task and per cpu
   perf_event_contexts:

         task_struct::perf_events_ctxp[] <-> perf_event_context <-> perf_cpu_context
              ^                                 |    ^     |           ^
              `---------------------------------'    |     `--> pmu ---'
                                                     v           ^
                                                perf_event ------'

   In this new design this is replaced with a single task context and a
   single CPU context, plus intermediate data-structures:

         task_struct::perf_event_ctxp -> perf_event_context <- perf_cpu_context
              ^                           |   ^ ^
              `---------------------------'   | |
                                              | |    perf_cpu_pmu_context <--.
                                              | `----.    ^                  |
                                              |      |    |                  |
                                              |      v    v                  |
                                              | ,--> perf_event_pmu_context  |
                                              | |                            |
                                              | |                            |
                                              v v                            |
                                         perf_event ---> pmu ----------------'

   [ See commit bd27568117 for more details. ]

   This rewrite was developed by Peter Zijlstra and Ravi Bangoria.

 - Optimize perf_tp_event()

 - Update the Intel uncore PMU driver, extending it with UPI topology
   discovery on various hardware models.

 - Misc fixes & cleanups

* tag 'perf-core-2022-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (25 commits)
  perf/x86/intel/uncore: Fix reference count leak in __uncore_imc_init_box()
  perf/x86/intel/uncore: Fix reference count leak in snr_uncore_mmio_map()
  perf/x86/intel/uncore: Fix reference count leak in hswep_has_limit_sbox()
  perf/x86/intel/uncore: Fix reference count leak in sad_cfg_iio_topology()
  perf/x86/intel/uncore: Make set_mapping() procedure void
  perf/x86/intel/uncore: Update sysfs-devices-mapping file
  perf/x86/intel/uncore: Enable UPI topology discovery for Sapphire Rapids
  perf/x86/intel/uncore: Enable UPI topology discovery for Icelake Server
  perf/x86/intel/uncore: Get UPI NodeID and GroupID
  perf/x86/intel/uncore: Enable UPI topology discovery for Skylake Server
  perf/x86/intel/uncore: Generalize get_topology() for SKX PMUs
  perf/x86/intel/uncore: Disable I/O stacks to PMU mapping on ICX-D
  perf/x86/intel/uncore: Clear attr_update properly
  perf/x86/intel/uncore: Introduce UPI topology type
  perf/x86/intel/uncore: Generalize IIO topology support
  perf/core: Don't allow grouping events from different hw pmus
  perf/amd/ibs: Make IBS a core pmu
  perf: Fix function pointer case
  perf/x86/amd: Remove the repeated declaration
  perf: Fix possible memleak in pmu_dev_alloc()
  ...
2022-12-12 15:19:38 -08:00
Sven Peter
7a73b976ed arm64: dts: apple: t8103: Add Bluetooth controller
Add bluetooth controller nodes and the required brcm,board-type
properties to be able to select the correct firmware to all board
device trees.

Signed-off-by: Sven Peter <sven@svenpeter.dev>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2022-12-12 14:19:24 -08:00