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226,418 commits

Author SHA1 Message Date
Linus Torvalds
f66d6acccb - Make sure a kdump kernel with CONFIG_IMA_KEXEC enabled and booted on an AMD
SME enabled hardware properly decrypts the ima_kexec buffer information
   passed to it from the previous kernel
 
 - Fix building the kernel with Clang where a non-TLS definition of the stack
   protector guard cookie leads to bogus code generation
 
 - Clear a wrongly advertised virtualized VMLOAD/VMSAVE feature flag on some
   Zen4 client systems as those insns are not supported on client
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Merge tag 'x86_urgent_for_v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Borislav Petkov:

 - Make sure a kdump kernel with CONFIG_IMA_KEXEC enabled and booted on
   an AMD SME enabled hardware properly decrypts the ima_kexec buffer
   information passed to it from the previous kernel

 - Fix building the kernel with Clang where a non-TLS definition of the
   stack protector guard cookie leads to bogus code generation

 - Clear a wrongly advertised virtualized VMLOAD/VMSAVE feature flag on
   some Zen4 client systems as those insns are not supported on client

* tag 'x86_urgent_for_v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mm: Fix a kdump kernel failure on SME system when CONFIG_IMA_KEXEC=y
  x86/stackprotector: Work around strict Clang TLS symbol requirements
  x86/CPU/AMD: Clear virtualized VMLOAD/VMSAVE on Zen4 client
2024-11-17 09:35:51 -08:00
Linus Torvalds
4a5df37964 10 hotfixes, 7 of which are cc:stable. All singletons, please see the
changelogs for details.
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Merge tag 'mm-hotfixes-stable-2024-11-16-15-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull hotfixes from Andrew Morton:
 "10 hotfixes, 7 of which are cc:stable. All singletons, please see the
  changelogs for details"

* tag 'mm-hotfixes-stable-2024-11-16-15-33' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mm: revert "mm: shmem: fix data-race in shmem_getattr()"
  ocfs2: uncache inode which has failed entering the group
  mm: fix NULL pointer dereference in alloc_pages_bulk_noprof
  mm, doc: update read_ahead_kb for MADV_HUGEPAGE
  fs/proc/task_mmu: prevent integer overflow in pagemap_scan_get_args()
  sched/task_stack: fix object_is_on_stack() for KASAN tagged pointers
  crash, powerpc: default to CRASH_DUMP=n on PPC_BOOK3S_32
  mm/mremap: fix address wraparound in move_page_tables()
  tools/mm: fix compile error
  mm, swap: fix allocation and scanning race with swapoff
2024-11-16 16:00:38 -08:00
Linus Torvalds
b84eeed05a ARM fixes for v6.12
- Fix kernel mapping for XIP kernels
 - Fix SMP support for XIP kernels
 - Fix complication corner case with CFI
 - Fix a typo in nommu code
 - Fix cacheflush syscall when PAN is enabled on LPAE platforms
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux

Pull ARM fixes from Russell King:

 - Fix kernel mapping for XIP kernels

 - Fix SMP support for XIP kernels

 - Fix complication corner case with CFI

 - Fix a typo in nommu code

 - Fix cacheflush syscall when PAN is enabled on LPAE platforms

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux:
  ARM: fix cacheflush with PAN
  ARM: 9435/1: ARM/nommu: Fix typo "absence"
  ARM: 9434/1: cfi: Fix compilation corner case
  ARM: 9420/1: smp: Fix SMP for xip kernels
  ARM: 9419/1: mm: Fix kernel memory mapping for xip kernels
2024-11-16 15:14:39 -08:00
Linus Torvalds
842c7e5834 This push fixes a regression in the MIPS CRC32C code.
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Merge tag 'v6.12-p5' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto fix from Herbert Xu:
 "Fix a regression in the MIPS CRC32C code"

* tag 'v6.12-p5' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: mips/crc32 - fix the CRC32C implementation
2024-11-15 10:04:39 -08:00
Dave Vasilevsky
31daa34315 crash, powerpc: default to CRASH_DUMP=n on PPC_BOOK3S_32
Fixes boot failures on 6.9 on PPC_BOOK3S_32 machines using Open Firmware. 
On these machines, the kernel refuses to boot from non-zero
PHYSICAL_START, which occurs when CRASH_DUMP is on.

Since most PPC_BOOK3S_32 machines boot via Open Firmware, it should
default to off for them.  Users booting via some other mechanism can still
turn it on explicitly.

Does not change the default on any other architectures for the
time being.

Link: https://lkml.kernel.org/r/20240917163720.1644584-1-dave@vasilevsky.ca
Fixes: 75bc255a74 ("crash: clean up kdump related config items")
Signed-off-by: Dave Vasilevsky <dave@vasilevsky.ca>
Reported-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Closes: https://lists.debian.org/debian-powerpc/2024/07/msg00001.html
Acked-by: Michael Ellerman <mpe@ellerman.id.au>	[powerpc]
Acked-by: Baoquan He <bhe@redhat.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-11-14 22:43:48 -08:00
Linus Torvalds
c5f4045118 LoongArch fixes for v6.12-final
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Merge tag 'loongarch-fixes-6.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson

Pull LoongArch fixes from Huacai Chen:

 - fix possible CPUs setup logical-physical CPU mapping, in order to
   avoid CPU hotplug issue

 - fix some KASAN bugs

 - fix AP booting issue in VM mode

 - some trivial cleanups

* tag 'loongarch-fixes-6.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
  LoongArch: Fix AP booting issue in VM mode
  LoongArch: Add WriteCombine shadow mapping in KASAN
  LoongArch: Disable KASAN if PGDIR_SIZE is too large for cpu_vabits
  LoongArch: Make KASAN work with 5-level page-tables
  LoongArch: Define a default value for VM_DATA_DEFAULT_FLAGS
  LoongArch: Fix early_numa_add_cpu() usage for FDT systems
  LoongArch: For all possible CPUs setup logical-physical CPU mapping
2024-11-13 09:09:00 -08:00
Baoquan He
8d9ffb2fe6 x86/mm: Fix a kdump kernel failure on SME system when CONFIG_IMA_KEXEC=y
The kdump kernel is broken on SME systems with CONFIG_IMA_KEXEC=y enabled.
Debugging traced the issue back to

  b69a2afd5a ("x86/kexec: Carry forward IMA measurement log on kexec").

Testing was previously not conducted on SME systems with CONFIG_IMA_KEXEC
enabled, which led to the oversight, with the following incarnation:

...
  ima: No TPM chip found, activating TPM-bypass!
  Loading compiled-in module X.509 certificates
  Loaded X.509 cert 'Build time autogenerated kernel key: 18ae0bc7e79b64700122bb1d6a904b070fef2656'
  ima: Allocated hash algorithm: sha256
  Oops: general protection fault, probably for non-canonical address 0xcfacfdfe6660003e: 0000 [#1] PREEMPT SMP NOPTI
  CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.11.0-rc2+ #14
  Hardware name: Dell Inc. PowerEdge R7425/02MJ3T, BIOS 1.20.0 05/03/2023
  RIP: 0010:ima_restore_measurement_list
  Call Trace:
   <TASK>
   ? show_trace_log_lvl
   ? show_trace_log_lvl
   ? ima_load_kexec_buffer
   ? __die_body.cold
   ? die_addr
   ? exc_general_protection
   ? asm_exc_general_protection
   ? ima_restore_measurement_list
   ? vprintk_emit
   ? ima_load_kexec_buffer
   ima_load_kexec_buffer
   ima_init
   ? __pfx_init_ima
   init_ima
   ? __pfx_init_ima
   do_one_initcall
   do_initcalls
   ? __pfx_kernel_init
   kernel_init_freeable
   kernel_init
   ret_from_fork
   ? __pfx_kernel_init
   ret_from_fork_asm
   </TASK>
  Modules linked in:
  ---[ end trace 0000000000000000 ]---
  ...
  Kernel panic - not syncing: Fatal exception
  Kernel Offset: disabled
  Rebooting in 10 seconds..

Adding debug printks showed that the stored addr and size of ima_kexec buffer
are not decrypted correctly like:

  ima: ima_load_kexec_buffer, buffer:0xcfacfdfe6660003e, size:0xe48066052d5df359

Three types of setup_data info

  — SETUP_EFI,
  - SETUP_IMA, and
  - SETUP_RNG_SEED

are passed to the kexec/kdump kernel. Only the ima_kexec buffer
experienced incorrect decryption. Debugging identified a bug in
early_memremap_is_setup_data(), where an incorrect range calculation
occurred due to the len variable in struct setup_data ended up only
representing the length of the data field, excluding the struct's size,
and thus leading to miscalculation.

Address a similar issue in memremap_is_setup_data() while at it.

  [ bp: Heavily massage. ]

Fixes: b3c72fc9a7 ("x86/boot: Introduce setup_indirect")
Signed-off-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Cc: <stable@kernel.org>
Link: https://lore.kernel.org/r/20240911081615.262202-3-bhe@redhat.com
2024-11-13 14:11:33 +01:00
Russell King (Oracle)
ca29cfcc4a ARM: fix cacheflush with PAN
It seems that the cacheflush syscall got broken when PAN for LPAE was
implemented. User access was not enabled around the cache maintenance
instructions, causing them to fault.

Fixes: 7af5b901e8 ("ARM: 9358/2: Implement PAN for LPAE by TTBR0 page table walks disablement")
Reported-by: Michał Pecio <michal.pecio@gmail.com>
Tested-by: Michał Pecio <michal.pecio@gmail.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
2024-11-12 23:51:06 +00:00
WangYuli
fb5af7d540 ARM: 9435/1: ARM/nommu: Fix typo "absence"
There is a spelling mistake of 'absense' in comments which
should be 'absence'.

Link: https://lore.kernel.org/all/fca25741-c89f-43ea-95af-5e3232d513fc@arm.com/
Signed-off-by: WangYuli <wangyuli@uniontech.com>
Reviewed-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
2024-11-12 23:51:05 +00:00
Linus Walleij
4aea16b7cf ARM: 9434/1: cfi: Fix compilation corner case
When enabling expert mode CONFIG_EXPERT and using that power
user mode to disable the branch prediction hardening
!CONFIG_HARDEN_BRANCH_PREDICTOR, the assembly linker
in CLANG notices that some assembly in proc-v7.S does
not have corresponding C call sites, i.e. the prototypes
in proc-v7-bugs.c are enclosed in ifdef
CONFIG_HARDEN_BRANCH_PREDICTOR so this assembly:

SYM_TYPED_FUNC_START(cpu_v7_smc_switch_mm)
SYM_TYPED_FUNC_START(cpu_v7_hvc_switch_mm)

Results in:

ld.lld: error: undefined symbol: __kcfi_typeid_cpu_v7_smc_switch_mm
>>> referenced by proc-v7.S:94 (.../arch/arm/mm/proc-v7.S:94)
>>> arch/arm/mm/proc-v7.o:(.text+0x108) in archive vmlinux.a

ld.lld: error: undefined symbol: __kcfi_typeid_cpu_v7_hvc_switch_mm
>>> referenced by proc-v7.S:105 (.../arch/arm/mm/proc-v7.S:105)
>>> arch/arm/mm/proc-v7.o:(.text+0x124) in archive vmlinux.a

Fix this by adding an additional requirement that
CONFIG_HARDEN_BRANCH_PREDICTOR has to be enabled to compile
these assembly calls.

Closes: https://lore.kernel.org/oe-kbuild-all/202411041456.ZsoEiD7T-lkp@intel.com/

Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
2024-11-12 23:51:05 +00:00
Linus Torvalds
14b6320953 KVM x86 and selftests fixes for 6.12:
x86:
 
 - When emulating a guest TLB flush for a nested guest, flush vpid01, not
   vpid02, if L2 is active but VPID is disabled in vmcs12, i.e. if L2 and
   L1 are sharing VPID '0' (from L1's perspective).
 
 - Fix a bug in the SNP initialization flow where KVM would return '0' to
   userspace instead of -errno on failure.
 
 - Move the Intel PT virtualization (i.e. outputting host trace to host
   buffer and guest trace to guest buffer) behind CONFIG_BROKEN.
 
 - Fix memory leak on failure of KVM_SEV_SNP_LAUNCH_START
 
 - Fix a bug where KVM fails to inject an interrupt from the IRR after
   KVM_SET_LAPIC.
 
 Selftests:
 
 - Increase the timeout for the memslot performance selftest to avoid false
   failures on arm64 and nested x86 platforms.
 
 - Fix a goof in the guest_memfd selftest where a for-loop initialized a
   bit mask to zero instead of BIT(0).
 
 - Disable strict aliasing when building KVM selftests to prevent the
   compiler from treating things like "u64 *" to "uint64_t *" cases as
   undefined behavior, which can lead to nasty, hard to debug failures.
 
 - Force -march=x86-64-v2 for KVM x86 selftests if and only if the uarch
   is supported by the compiler.
 
 - Fix broken compilation of kvm selftests after a header sync in tools/
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "x86 and selftests fixes.

  x86:

   - When emulating a guest TLB flush for a nested guest, flush vpid01,
     not vpid02, if L2 is active but VPID is disabled in vmcs12, i.e. if
     L2 and L1 are sharing VPID '0' (from L1's perspective).

   - Fix a bug in the SNP initialization flow where KVM would return '0'
     to userspace instead of -errno on failure.

   - Move the Intel PT virtualization (i.e. outputting host trace to
     host buffer and guest trace to guest buffer) behind CONFIG_BROKEN.

   - Fix memory leak on failure of KVM_SEV_SNP_LAUNCH_START

   - Fix a bug where KVM fails to inject an interrupt from the IRR after
     KVM_SET_LAPIC.

  Selftests:

   - Increase the timeout for the memslot performance selftest to avoid
     false failures on arm64 and nested x86 platforms.

   - Fix a goof in the guest_memfd selftest where a for-loop initialized
     a bit mask to zero instead of BIT(0).

   - Disable strict aliasing when building KVM selftests to prevent the
     compiler from treating things like "u64 *" to "uint64_t *" cases as
     undefined behavior, which can lead to nasty, hard to debug
     failures.

   - Force -march=x86-64-v2 for KVM x86 selftests if and only if the
     uarch is supported by the compiler.

   - Fix broken compilation of kvm selftests after a header sync in
     tools/"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: VMX: Bury Intel PT virtualization (guest/host mode) behind CONFIG_BROKEN
  KVM: x86: Unconditionally set irr_pending when updating APICv state
  kvm: svm: Fix gctx page leak on invalid inputs
  KVM: selftests: use X86_MEMTYPE_WB instead of VMX_BASIC_MEM_TYPE_WB
  KVM: SVM: Propagate error from snp_guest_req_init() to userspace
  KVM: nVMX: Treat vpid01 as current if L2 is active, but with VPID disabled
  KVM: selftests: Don't force -march=x86-64-v2 if it's unsupported
  KVM: selftests: Disable strict aliasing
  KVM: selftests: fix unintentional noop test in guest_memfd_test.c
  KVM: selftests: memslot_perf_test: increase guest sync timeout
2024-11-12 13:35:13 -08:00
Harith G
9e9b0cf931 ARM: 9420/1: smp: Fix SMP for xip kernels
Fix the physical address calculation of the following to get smp working
on xip kernels.
- secondary_data needed for secondary cpu bootup.
- secondary_startup address passed through psci.
- identity mapped code region needed for enabling mmu for secondary cpus.

Signed-off-by: Harith George <harith.g@alifsemi.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
2024-11-12 16:38:47 +00:00
Harith G
ed6cbe6e55 ARM: 9419/1: mm: Fix kernel memory mapping for xip kernels
The patchset introducing kernel_sec_start/end variables to separate the
kernel/lowmem memory mappings, broke the mapping of the kernel memory
for xipkernels.

kernel_sec_start/end variables are in RO area before the MMU is switched
on for xipkernels.
So these cannot be set early in boot in head.S. Fix this by setting these
after MMU is switched on.
xipkernels need two different mappings for kernel text (starting at
CONFIG_XIP_PHYS_ADDR) and data (starting at CONFIG_PHYS_OFFSET).
Also, move the kernel code mapping from devicemaps_init() to map_kernel().

Fixes: a91da54570 ("ARM: 9089/1: Define kernel physical section start and end")
Signed-off-by: Harith George <harith.g@alifsemi.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
2024-11-12 16:38:46 +00:00
Bibo Mao
6ce031e5d6 LoongArch: Fix AP booting issue in VM mode
Native IPI is used for AP booting, because it is the booting interface
between OS and BIOS firmware. The paravirt IPI is only used inside OS,
and native IPI is necessary to boot AP.

When booting AP, we write the kernel entry address in the HW mailbox of
AP and send IPI interrupt to it. AP executes idle instruction and waits
for interrupts or SW events, then clears IPI interrupt and jumps to the
kernel entry from HW mailbox.

Between writing HW mailbox and sending IPI, AP can be woken up by SW
events and jumps to the kernel entry, so ACTION_BOOT_CPU IPI interrupt
will keep pending during AP booting. And native IPI interrupt handler
needs be registered so that it can clear pending native IPI, else there
will be endless interrupts during AP booting stage.

Here native IPI interrupt is initialized even if paravirt IPI is used.

Cc: stable@vger.kernel.org
Fixes: 74c16b2e2b ("LoongArch: KVM: Add PV IPI support on guest side")
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2024-11-12 16:35:39 +08:00
Kanglong Wang
139d42ca51 LoongArch: Add WriteCombine shadow mapping in KASAN
Currently, the kernel couldn't boot when ARCH_IOREMAP, ARCH_WRITECOMBINE
and KASAN are enabled together. Because DMW2 is used by kernel now which
is configured as 0xa000000000000000 for WriteCombine, but KASAN has no
segment mapping for it. This patch fix this issue.

Solution: Add the relevant definitions for WriteCombine (DMW2) in KASAN.

Cc: stable@vger.kernel.org
Fixes: 8e02c3b782 ("LoongArch: Add writecombine support for DMW-based ioremap()")
Signed-off-by: Kanglong Wang <wangkanglong@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2024-11-12 16:35:39 +08:00
Huacai Chen
227ca9f6f6 LoongArch: Disable KASAN if PGDIR_SIZE is too large for cpu_vabits
If PGDIR_SIZE is too large for cpu_vabits, KASAN_SHADOW_END will
overflow UINTPTR_MAX because KASAN_SHADOW_START/KASAN_SHADOW_END are
aligned up by PGDIR_SIZE. And then the overflowed KASAN_SHADOW_END looks
like a user space address.

For example, PGDIR_SIZE of CONFIG_4KB_4LEVEL is 2^39, which is too large
for Loongson-2K series whose cpu_vabits = 39.

Since CONFIG_4KB_4LEVEL is completely legal for CPUs with cpu_vabits <=
39, we just disable KASAN via early return in kasan_init(). Otherwise we
get a boot failure.

Moreover, we change KASAN_SHADOW_END from the first address after KASAN
shadow area to the last address in KASAN shadow area, in order to avoid
the end address exactly overflow to 0 (which is a legal case). We don't
need to worry about alignment because pgd_addr_end() can handle it.

Cc: stable@vger.kernel.org
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2024-11-12 16:35:39 +08:00
Huacai Chen
a410656643 LoongArch: Make KASAN work with 5-level page-tables
Make KASAN work with 5-level page-tables, including:
1. Implement and use __pgd_none() and kasan_p4d_offset().
2. As done in kasan_pmd_populate() and kasan_pte_populate(), restrict
   the loop conditions of kasan_p4d_populate() and kasan_pud_populate()
   to avoid unnecessary population.

Cc: stable@vger.kernel.org
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2024-11-12 16:35:39 +08:00
Yuli Wang
c859900a84 LoongArch: Define a default value for VM_DATA_DEFAULT_FLAGS
This is a trivial cleanup, commit c62da0c35d ("mm/vma: define a
default value for VM_DATA_DEFAULT_FLAGS") has unified default values of
VM_DATA_DEFAULT_FLAGS across different platforms.

Apply the same consistency to LoongArch.

Suggested-by: Wentao Guan <guanwentao@uniontech.com>
Signed-off-by: Yuli Wang <wangyuli@uniontech.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2024-11-12 16:35:39 +08:00
Huacai Chen
30cec747d6 LoongArch: Fix early_numa_add_cpu() usage for FDT systems
early_numa_add_cpu() applies on physical CPU id rather than logical CPU
id, so use cpuid instead of cpu.

Cc: stable@vger.kernel.org
Fixes: 3de9c42d02 ("LoongArch: Add all CPUs enabled by fdt to NUMA node 0")
Reported-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2024-11-12 16:35:36 +08:00
Huacai Chen
a6654a40a8 LoongArch: For all possible CPUs setup logical-physical CPU mapping
In order to support ACPI-based physical CPU hotplug, we suppose for all
"possible" CPUs cpu_logical_map() can work. Because some drivers want to
use cpu_logical_map() for all "possible" CPUs, while currently we only
setup logical-physical mapping for "present" CPUs. This lack of mapping
also causes cpu_to_node() cannot work for hot-added CPUs.

All "possible" CPUs are listed in MADT, and the "present" subset is
marked as ACPI_MADT_ENABLED. To setup logical-physical CPU mapping for
all possible CPUs and keep present CPUs continuous in cpu_present_mask,
we parse MADT twice. The first pass handles CPUs with ACPI_MADT_ENABLED
and the second pass handles CPUs without ACPI_MADT_ENABLED.

The global flag (cpu_enumerated) is removed because acpi_map_cpu() calls
cpu_number_map() rather than set_processor_mask() now.

Reported-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2024-11-12 16:35:36 +08:00
Linus Torvalds
28e43197c4 20 hotfixes, 14 of which are cc:stable.
Three affect DAMON.  Lorenzo's five-patch series to address the
 mmap_region error handling is here also.
 
 Apart from that, various singletons.
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Merge tag 'mm-hotfixes-stable-2024-11-09-22-40' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "20 hotfixes, 14 of which are cc:stable.

  Three affect DAMON. Lorenzo's five-patch series to address the
  mmap_region error handling is here also.

  Apart from that, various singletons"

* tag 'mm-hotfixes-stable-2024-11-09-22-40' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mailmap: add entry for Thorsten Blum
  ocfs2: remove entry once instead of null-ptr-dereference in ocfs2_xa_remove()
  signal: restore the override_rlimit logic
  fs/proc: fix compile warning about variable 'vmcore_mmap_ops'
  ucounts: fix counter leak in inc_rlimit_get_ucounts()
  selftests: hugetlb_dio: check for initial conditions to skip in the start
  mm: fix docs for the kernel parameter ``thp_anon=``
  mm/damon/core: avoid overflow in damon_feed_loop_next_input()
  mm/damon/core: handle zero schemes apply interval
  mm/damon/core: handle zero {aggregation,ops_update} intervals
  mm/mlock: set the correct prev on failure
  objpool: fix to make percpu slot allocation more robust
  mm/page_alloc: keep track of free highatomic
  mm: resolve faulty mmap_region() error path behaviour
  mm: refactor arch_calc_vm_flag_bits() and arm64 MTE handling
  mm: refactor map_deny_write_exec()
  mm: unconditionally close VMAs on error
  mm: avoid unsafe VMA hook invocation when error arises on mmap hook
  mm/thp: fix deferred split unqueue naming and locking
  mm/thp: fix deferred split queue not partially_mapped
2024-11-10 09:04:27 -08:00
Linus Torvalds
c7a8f2a504 ACPI fix for 6.12-rc7
Fix the ACPI processor driver initialization ordering after recent
 changes to avoid calling init_freq_invariance_cppc() too early on
 AMD platforms (Mario Limonciello).
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Merge tag 'acpi-6.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fix from Rafael Wysocki:
 "Fix the ACPI processor driver initialization ordering after recent
  changes to avoid calling init_freq_invariance_cppc() too early on AMD
  platforms (Mario Limonciello)"

* tag 'acpi-6.12-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: processor: Move arch_init_invariance_cppc() call later
2024-11-08 13:08:23 -10:00
Linus Torvalds
9ea7edac83 arm64 fixes for -rc7
- Fix handling of SVE traps from userspace on preemptible kernels when
   converting the saved floating point state into SVE state.
 
 - Remove broken support for the SMCCCv1.3 "SVE discard hint"
   optimisation.
 
 - Disable SME support, as the current support code suffers from numerous
   issues around signal delivery, ptrace access and context-switch which
   can lead to user-visible corruption of the register state.
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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 is a (hopefully) final round of arm64 fixes for 6.12 that address
  some user-visible floating point register corruption. Both of the
  Marks have been working on this for a couple of weeks and we've ended
  up in a position where SVE is solid but SME still has enough pending
  issues that the most pragmatic solution for the release and stable
  backports is to disable the feature. Yes, it's a shame, but the
  hardware is rare as hen's teeth at the moment and we're better off
  getting back to a known good state before fixing it all properly.
  We're also improving the selftests for 6.13 to help avoid merging
  broken code in the future.

  Anyway, the good news is that we're removing a lot more code than
  we're adding.

  Summary:

   - Fix handling of SVE traps from userspace on preemptible kernels
     when converting the saved floating point state into SVE state.

   - Remove broken support for the SMCCCv1.3 "SVE discard hint"
     optimisation.

   - Disable SME support, as the current support code suffers from
     numerous issues around signal delivery, ptrace access and
     context-switch which can lead to user-visible corruption of the
     register state"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: Kconfig: Make SME depend on BROKEN for now
  arm64: smccc: Remove broken support for SMCCCv1.3 SVE discard hint
  arm64/sve: Discard stale CPU state when handling SVE traps
2024-11-08 07:19:58 -10:00
Linus Torvalds
51b47860ad powerpc fixes for 6.12 #6
- Fix spurious interrupts in Book3S HV Nested KVM.
 
 Thanks to: Gautam Menghani.
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Merge tag 'powerpc-6.12-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fix from Madhavan Srinivasan:

 - Fix spurious interrupts in Book3S HV Nested KVM

Thanks to Gautam Menghani.

* tag 'powerpc-6.12-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  KVM: PPC: Book3S HV: Mask off LPCR_MER for a vCPU before running it to avoid spurious interrupts
2024-11-08 07:16:01 -10:00
Ard Biesheuvel
577c134d31 x86/stackprotector: Work around strict Clang TLS symbol requirements
GCC and Clang both implement stack protector support based on Thread Local
Storage (TLS) variables, and this is used in the kernel to implement per-task
stack cookies, by copying a task's stack cookie into a per-CPU variable every
time it is scheduled in.

Both now also implement -mstack-protector-guard-symbol=, which permits the TLS
variable to be specified directly. This is useful because it will allow to
move away from using a fixed offset of 40 bytes into the per-CPU area on
x86_64, which requires a lot of special handling in the per-CPU code and the
runtime relocation code.

However, while GCC is rather lax in its implementation of this command line
option, Clang actually requires that the provided symbol name refers to a TLS
variable (i.e., one declared with __thread), although it also permits the
variable to be undeclared entirely, in which case it will use an implicit
declaration of the right type.

The upshot of this is that Clang will emit the correct references to the stack
cookie variable in most cases, e.g.,

  10d:       64 a1 00 00 00 00       mov    %fs:0x0,%eax
                     10f: R_386_32   __stack_chk_guard

However, if a non-TLS definition of the symbol in question is visible in the
same compilation unit (which amounts to the whole of vmlinux if LTO is
enabled), it will drop the per-CPU prefix and emit a load from a bogus
address.

Work around this by using a symbol name that never occurs in C code, and emit
it as an alias in the linker script.

Fixes: 3fb0fdb3bb ("x86/stackprotector/32: Make the canary into a regular percpu variable")
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Brian Gerst <brgerst@gmail.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Cc: stable@vger.kernel.org
Link: https://github.com/ClangBuiltLinux/linux/issues/1854
Link: https://lore.kernel.org/r/20241105155801.1779119-2-brgerst@gmail.com
2024-11-08 13:16:00 +01:00
Sean Christopherson
aa0d42cacf KVM: VMX: Bury Intel PT virtualization (guest/host mode) behind CONFIG_BROKEN
Hide KVM's pt_mode module param behind CONFIG_BROKEN, i.e. disable support
for virtualizing Intel PT via guest/host mode unless BROKEN=y.  There are
myriad bugs in the implementation, some of which are fatal to the guest,
and others which put the stability and health of the host at risk.

For guest fatalities, the most glaring issue is that KVM fails to ensure
tracing is disabled, and *stays* disabled prior to VM-Enter, which is
necessary as hardware disallows loading (the guest's) RTIT_CTL if tracing
is enabled (enforced via a VMX consistency check).  Per the SDM:

  If the logical processor is operating with Intel PT enabled (if
  IA32_RTIT_CTL.TraceEn = 1) at the time of VM entry, the "load
  IA32_RTIT_CTL" VM-entry control must be 0.

On the host side, KVM doesn't validate the guest CPUID configuration
provided by userspace, and even worse, uses the guest configuration to
decide what MSRs to save/load at VM-Enter and VM-Exit.  E.g. configuring
guest CPUID to enumerate more address ranges than are supported in hardware
will result in KVM trying to passthrough, save, and load non-existent MSRs,
which generates a variety of WARNs, ToPA ERRORs in the host, a potential
deadlock, etc.

Fixes: f99e3daf94 ("KVM: x86: Add Intel PT virtualization work mode")
Cc: stable@vger.kernel.org
Cc: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Tested-by: Adrian Hunter <adrian.hunter@intel.com>
Message-ID: <20241101185031.1799556-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-11-08 05:57:13 -05:00
Sean Christopherson
d3ddef46f2 KVM: x86: Unconditionally set irr_pending when updating APICv state
Always set irr_pending (to true) when updating APICv status to fix a bug
where KVM fails to set irr_pending when userspace sets APIC state and
APICv is disabled, which ultimate results in KVM failing to inject the
pending interrupt(s) that userspace stuffed into the vIRR, until another
interrupt happens to be emulated by KVM.

Only the APICv-disabled case is flawed, as KVM forces apic->irr_pending to
be true if APICv is enabled, because not all vIRR updates will be visible
to KVM.

Hit the bug with a big hammer, even though strictly speaking KVM can scan
the vIRR and set/clear irr_pending as appropriate for this specific case.
The bug was introduced by commit 755c2bf878 ("KVM: x86: lapic: don't
touch irr_pending in kvm_apic_update_apicv when inhibiting it"), which as
the shortlog suggests, deleted code that updated irr_pending.

Before that commit, kvm_apic_update_apicv() did indeed scan the vIRR, with
with the crucial difference that kvm_apic_update_apicv() did the scan even
when APICv was being *disabled*, e.g. due to an AVIC inhibition.

        struct kvm_lapic *apic = vcpu->arch.apic;

        if (vcpu->arch.apicv_active) {
                /* irr_pending is always true when apicv is activated. */
                apic->irr_pending = true;
                apic->isr_count = 1;
        } else {
                apic->irr_pending = (apic_search_irr(apic) != -1);
                apic->isr_count = count_vectors(apic->regs + APIC_ISR);
        }

And _that_ bug (clearing irr_pending) was introduced by commit b26a695a1d
("kvm: lapic: Introduce APICv update helper function"), prior to which KVM
unconditionally set irr_pending to true in kvm_apic_set_state(), i.e.
assumed that the new virtual APIC state could have a pending IRQ.

Furthermore, in addition to introducing this issue, commit 755c2bf878
also papered over the underlying bug: KVM doesn't ensure CPUs and devices
see APICv as disabled prior to searching the IRR.  Waiting until KVM
emulates an EOI to update irr_pending "works", but only because KVM won't
emulate EOI until after refresh_apicv_exec_ctrl(), and there are plenty of
memory barriers in between.  I.e. leaving irr_pending set is basically
hacking around bad ordering.

So, effectively revert to the pre-b26a695a1d78 behavior for state restore,
even though it's sub-optimal if no IRQs are pending, in order to provide a
minimal fix, but leave behind a FIXME to document the ugliness.  With luck,
the ordering issue will be fixed and the mess will be cleaned up in the
not-too-distant future.

Fixes: 755c2bf878 ("KVM: x86: lapic: don't touch irr_pending in kvm_apic_update_apicv when inhibiting it")
Cc: stable@vger.kernel.org
Cc: Maxim Levitsky <mlevitsk@redhat.com>
Reported-by: Yong He <zhuangel570@gmail.com>
Closes: https://lkml.kernel.org/r/20241023124527.1092810-1-alexyonghe%40tencent.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-ID: <20241106015135.2462147-1-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-11-08 05:57:13 -05:00
Dionna Glaze
e3a7792d96 kvm: svm: Fix gctx page leak on invalid inputs
Ensure that snp gctx page allocation is adequately deallocated on
failure during snp_launch_start.

Fixes: 136d8bc931 ("KVM: SEV: Add KVM_SEV_SNP_LAUNCH_START command")

CC: Sean Christopherson <seanjc@google.com>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Ingo Molnar <mingo@redhat.com>
CC: Borislav Petkov <bp@alien8.de>
CC: Dave Hansen <dave.hansen@linux.intel.com>
CC: Ashish Kalra <ashish.kalra@amd.com>
CC: Tom Lendacky <thomas.lendacky@amd.com>
CC: John Allen <john.allen@amd.com>
CC: Herbert Xu <herbert@gondor.apana.org.au>
CC: "David S. Miller" <davem@davemloft.net>
CC: Michael Roth <michael.roth@amd.com>
CC: Luis Chamberlain <mcgrof@kernel.org>
CC: Russ Weight <russ.weight@linux.dev>
CC: Danilo Krummrich <dakr@redhat.com>
CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CC: "Rafael J. Wysocki" <rafael@kernel.org>
CC: Tianfei zhang <tianfei.zhang@intel.com>
CC: Alexey Kardashevskiy <aik@amd.com>

Signed-off-by: Dionna Glaze <dionnaglaze@google.com>
Message-ID: <20241105010558.1266699-2-dionnaglaze@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-11-08 05:57:13 -05:00
Paolo Bonzini
9893deb08b Merge tag 'kvm-x86-fixes-6.12-rcN' of https://github.com/kvm-x86/linux into HEAD
KVM x86 and selftests fixes for 6.12:

 - Increase the timeout for the memslot performance selftest to avoid false
   failures on arm64 and nested x86 platforms.

 - Fix a goof in the guest_memfd selftest where a for-loop initialized a
   bit mask to zero instead of BIT(0).

 - Disable strict aliasing when building KVM selftests to prevent the
   compiler from treating things like "u64 *" to "uint64_t *" cases as
   undefined behavior, which can lead to nasty, hard to debug failures.

 - Force -march=x86-64-v2 for KVM x86 selftests if and only if the uarch
   is supported by the compiler.

 - When emulating a guest TLB flush for a nested guest, flush vpid01, not
   vpid02, if L2 is active but VPID is disabled in vmcs12, i.e. if L2 and
   L1 are sharing VPID '0' (from L1's perspective).

 - Fix a bug in the SNP initialization flow where KVM would return '0' to
   userspace instead of -errno on failure.
2024-11-08 05:57:00 -05:00
Mark Rutland
81235ae0c8 arm64: Kconfig: Make SME depend on BROKEN for now
Although support for SME was merged in v5.19, we've since uncovered a
number of issues with the implementation, including issues which might
corrupt the FPSIMD/SVE/SME state of arbitrary tasks. While there are
patches to address some of these issues, ongoing review has highlighted
additional functional problems, and more time is necessary to analyse
and fix these.

For now, mark SME as BROKEN in the hope that we can fix things properly
in the near future. As SME is an OPTIONAL part of ARMv9.2+, and there is
very little extant hardware, this should not adversely affect the vast
majority of users.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: stable@vger.kernel.org # 5.19
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20241106164220.2789279-1-mark.rutland@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
2024-11-07 11:20:35 +00:00
Mark Rutland
8c462d5648 arm64: smccc: Remove broken support for SMCCCv1.3 SVE discard hint
SMCCCv1.3 added a hint bit which callers can set in an SMCCC function ID
(AKA "FID") to indicate that it is acceptable for the SMCCC
implementation to discard SVE and/or SME state over a specific SMCCC
call. The kernel support for using this hint is broken and SMCCC calls
may clobber the SVE and/or SME state of arbitrary tasks, though FPSIMD
state is unaffected.

The kernel support is intended to use the hint when there is no SVE or
SME state to save, and to do this it checks whether TIF_FOREIGN_FPSTATE
is set or TIF_SVE is clear in assembly code:

|        ldr     <flags>, [<current_task>, #TSK_TI_FLAGS]
|        tbnz    <flags>, #TIF_FOREIGN_FPSTATE, 1f   // Any live FP state?
|        tbnz    <flags>, #TIF_SVE, 2f               // Does that state include SVE?
|
| 1:     orr     <fid>, <fid>, ARM_SMCCC_1_3_SVE_HINT
| 2:
|        << SMCCC call using FID >>

This is not safe as-is:

(1) SMCCC calls can be made in a preemptible context and preemption can
    result in TIF_FOREIGN_FPSTATE being set or cleared at arbitrary
    points in time. Thus checking for TIF_FOREIGN_FPSTATE provides no
    guarantee.

(2) TIF_FOREIGN_FPSTATE only indicates that the live FP/SVE/SME state in
    the CPU does not belong to the current task, and does not indicate
    that clobbering this state is acceptable.

    When the live CPU state is clobbered it is necessary to update
    fpsimd_last_state.st to ensure that a subsequent context switch will
    reload FP/SVE/SME state from memory rather than consuming the
    clobbered state. This and the SMCCC call itself must happen in a
    critical section with preemption disabled to avoid races.

(3) Live SVE/SME state can exist with TIF_SVE clear (e.g. with only
    TIF_SME set), and checking TIF_SVE alone is insufficient.

Remove the broken support for the SMCCCv1.3 SVE saving hint. This is
effectively a revert of commits:

* cfa7ff959a ("arm64: smccc: Support SMCCC v1.3 SVE register saving hint")
* a7c3acca53 ("arm64: smccc: Save lr before calling __arm_smccc_sve_check()")

... leaving behind the ARM_SMCCC_VERSION_1_3 and ARM_SMCCC_1_3_SVE_HINT
definitions, since these are simply definitions from the SMCCC
specification, and the latter is used in KVM via ARM_SMCCC_CALL_HINTS.

If we want to bring this back in future, we'll probably want to handle
this logic in C where we can use all the usual FPSIMD/SVE/SME helper
functions, and that'll likely require some rework of the SMCCC code
and/or its callers.

Fixes: cfa7ff959a ("arm64: smccc: Support SMCCC v1.3 SVE register saving hint")
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: stable@vger.kernel.org
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20241106160448.2712997-1-mark.rutland@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
2024-11-07 11:18:52 +00:00
Mario Limonciello
b79276dcac ACPI: processor: Move arch_init_invariance_cppc() call later
arch_init_invariance_cppc() is called at the end of
acpi_cppc_processor_probe() in order to configure frequency invariance
based upon the values from _CPC.

This however doesn't work on AMD CPPC shared memory designs that have
AMD preferred cores enabled because _CPC needs to be analyzed from all
cores to judge if preferred cores are enabled.

This issue manifests to users as a warning since commit 21fb59ab4b
("ACPI: CPPC: Adjust debug messages in amd_set_max_freq_ratio() to warn"):
```
Could not retrieve highest performance (-19)
```

However the warning isn't the cause of this, it was actually
commit 279f838a61 ("x86/amd: Detect preferred cores in
amd_get_boost_ratio_numerator()") which exposed the issue.

To fix this problem, change arch_init_invariance_cppc() into a new weak
symbol that is called at the end of acpi_processor_driver_init().
Each architecture that supports it can declare the symbol to override
the weak one.

Define it for x86, in arch/x86/kernel/acpi/cppc.c, and for all of the
architectures using the generic arch_topology.c code.

Fixes: 279f838a61 ("x86/amd: Detect preferred cores in amd_get_boost_ratio_numerator()")
Reported-by: Ivan Shapovalov <intelfx@intelfx.name>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=219431
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://patch.msgid.link/20241104222855.3959267-1-superm1@kernel.org
[ rjw: Changelog edit ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2024-11-06 21:31:36 +01:00
Mark Brown
751ecf6afd arm64/sve: Discard stale CPU state when handling SVE traps
The logic for handling SVE traps manipulates saved FPSIMD/SVE state
incorrectly, and a race with preemption can result in a task having
TIF_SVE set and TIF_FOREIGN_FPSTATE clear even though the live CPU state
is stale (e.g. with SVE traps enabled). This has been observed to result
in warnings from do_sve_acc() where SVE traps are not expected while
TIF_SVE is set:

|         if (test_and_set_thread_flag(TIF_SVE))
|                 WARN_ON(1); /* SVE access shouldn't have trapped */

Warnings of this form have been reported intermittently, e.g.

  https://lore.kernel.org/linux-arm-kernel/CA+G9fYtEGe_DhY2Ms7+L7NKsLYUomGsgqpdBj+QwDLeSg=JhGg@mail.gmail.com/
  https://lore.kernel.org/linux-arm-kernel/000000000000511e9a060ce5a45c@google.com/

The race can occur when the SVE trap handler is preempted before and
after manipulating the saved FPSIMD/SVE state, starting and ending on
the same CPU, e.g.

| void do_sve_acc(unsigned long esr, struct pt_regs *regs)
| {
|         // Trap on CPU 0 with TIF_SVE clear, SVE traps enabled
|         // task->fpsimd_cpu is 0.
|         // per_cpu_ptr(&fpsimd_last_state, 0) is task.
|
|         ...
|
|         // Preempted; migrated from CPU 0 to CPU 1.
|         // TIF_FOREIGN_FPSTATE is set.
|
|         get_cpu_fpsimd_context();
|
|         if (test_and_set_thread_flag(TIF_SVE))
|                 WARN_ON(1); /* SVE access shouldn't have trapped */
|
|         sve_init_regs() {
|                 if (!test_thread_flag(TIF_FOREIGN_FPSTATE)) {
|                         ...
|                 } else {
|                         fpsimd_to_sve(current);
|                         current->thread.fp_type = FP_STATE_SVE;
|                 }
|         }
|
|         put_cpu_fpsimd_context();
|
|         // Preempted; migrated from CPU 1 to CPU 0.
|         // task->fpsimd_cpu is still 0
|         // If per_cpu_ptr(&fpsimd_last_state, 0) is still task then:
|         // - Stale HW state is reused (with SVE traps enabled)
|         // - TIF_FOREIGN_FPSTATE is cleared
|         // - A return to userspace skips HW state restore
| }

Fix the case where the state is not live and TIF_FOREIGN_FPSTATE is set
by calling fpsimd_flush_task_state() to detach from the saved CPU
state. This ensures that a subsequent context switch will not reuse the
stale CPU state, and will instead set TIF_FOREIGN_FPSTATE, forcing the
new state to be reloaded from memory prior to a return to userspace.

Fixes: cccb78ce89 ("arm64/sve: Rework SVE access trap to convert state in registers")
Reported-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20241030-arm64-fpsimd-foreign-flush-v1-1-bd7bd66905a2@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
2024-11-06 13:49:39 +00:00
Gautam Menghani
a373830f96 KVM: PPC: Book3S HV: Mask off LPCR_MER for a vCPU before running it to avoid spurious interrupts
Running a L2 vCPU (see [1] for terminology) with LPCR_MER bit set and no
pending interrupts results in that L2 vCPU getting an infinite flood of
spurious interrupts. The 'if check' in kvmhv_run_single_vcpu() sets the
LPCR_MER bit if there are pending interrupts.

The spurious flood problem can be observed in 2 cases:
1. Crashing the guest while interrupt heavy workload is running
  a. Start a L2 guest and run an interrupt heavy workload (eg: ipistorm)
  b. While the workload is running, crash the guest (make sure kdump
     is configured)
  c. Any one of the vCPUs of the guest will start getting an infinite
     flood of spurious interrupts.

2. Running LTP stress tests in multiple guests at the same time
   a. Start 4 L2 guests.
   b. Start running LTP stress tests on all 4 guests at same time.
   c. In some time, any one/more of the vCPUs of any of the guests will
      start getting an infinite flood of spurious interrupts.

The root cause of both the above issues is the same:
1. A NMI is sent to a running vCPU that has LPCR_MER bit set.
2. In the NMI path, all registers are refreshed, i.e, H_GUEST_GET_STATE
   is called for all the registers.
3. When H_GUEST_GET_STATE is called for LPCR, the vcpu->arch.vcore->lpcr
   of that vCPU at L1 level gets updated with LPCR_MER set to 1, and this
   new value is always used whenever that vCPU runs, regardless of whether
   there was a pending interrupt.
4. Since LPCR_MER is set, the vCPU in L2 always jumps to the external
   interrupt handler, and this cycle never ends.

Fix the spurious flood by masking off the LPCR_MER bit before running a
L2 vCPU to ensure that it is not set if there are no pending interrupts.

[1] Terminology:
1. L0 : PAPR hypervisor running in HV mode
2. L1 : Linux guest (logical partition) running on top of L0
3. L2 : KVM guest running on top of L1

Fixes: ec0f6639fa ("KVM: PPC: Book3S HV nestedv2: Ensure LPCR_MER bit is passed to the L0")
Cc: stable@vger.kernel.org # v6.8+
Signed-off-by: Gautam Menghani <gautam@linux.ibm.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
2024-11-06 11:36:09 +05:30
Lorenzo Stoakes
5baf8b037d mm: refactor arch_calc_vm_flag_bits() and arm64 MTE handling
Currently MTE is permitted in two circumstances (desiring to use MTE
having been specified by the VM_MTE flag) - where MAP_ANONYMOUS is
specified, as checked by arch_calc_vm_flag_bits() and actualised by
setting the VM_MTE_ALLOWED flag, or if the file backing the mapping is
shmem, in which case we set VM_MTE_ALLOWED in shmem_mmap() when the mmap
hook is activated in mmap_region().

The function that checks that, if VM_MTE is set, VM_MTE_ALLOWED is also
set is the arm64 implementation of arch_validate_flags().

Unfortunately, we intend to refactor mmap_region() to perform this check
earlier, meaning that in the case of a shmem backing we will not have
invoked shmem_mmap() yet, causing the mapping to fail spuriously.

It is inappropriate to set this architecture-specific flag in general mm
code anyway, so a sensible resolution of this issue is to instead move the
check somewhere else.

We resolve this by setting VM_MTE_ALLOWED much earlier in do_mmap(), via
the arch_calc_vm_flag_bits() call.

This is an appropriate place to do this as we already check for the
MAP_ANONYMOUS case here, and the shmem file case is simply a variant of
the same idea - we permit RAM-backed memory.

This requires a modification to the arch_calc_vm_flag_bits() signature to
pass in a pointer to the struct file associated with the mapping, however
this is not too egregious as this is only used by two architectures anyway
- arm64 and parisc.

So this patch performs this adjustment and removes the unnecessary
assignment of VM_MTE_ALLOWED in shmem_mmap().

[akpm@linux-foundation.org: fix whitespace, per Catalin]
Link: https://lkml.kernel.org/r/ec251b20ba1964fb64cf1607d2ad80c47f3873df.1730224667.git.lorenzo.stoakes@oracle.com
Fixes: deb0f65628 ("mm/mmap: undo ->mmap() when arch_validate_flags() fails")
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Suggested-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Jann Horn <jannh@google.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Andreas Larsson <andreas@gaisler.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Helge Deller <deller@gmx.de>
Cc: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Peter Xu <peterx@redhat.com>
Cc: Will Deacon <will@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-11-05 16:49:55 -08:00
Mario Limonciello
a5ca1dc46a x86/CPU/AMD: Clear virtualized VMLOAD/VMSAVE on Zen4 client
A number of Zen4 client SoCs advertise the ability to use virtualized
VMLOAD/VMSAVE, but using these instructions is reported to be a cause
of a random host reboot.

These instructions aren't intended to be advertised on Zen4 client
so clear the capability.

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: stable@vger.kernel.org
Link: https://bugzilla.kernel.org/show_bug.cgi?id=219009
2024-11-05 17:48:32 +01:00
Sean Christopherson
e5d253c60e KVM: SVM: Propagate error from snp_guest_req_init() to userspace
If snp_guest_req_init() fails, return the provided error code up the
stack to userspace, e.g. so that userspace can log that KVM_SEV_INIT2
failed, as opposed to some random operation later in VM setup failing
because SNP wasn't actually enabled for the VM.

Note, KVM itself doesn't consult the return value from __sev_guest_init(),
i.e. the fallout is purely that userspace may be confused.

Fixes: 88caf544c9 ("KVM: SEV: Provide support for SNP_GUEST_REQUEST NAE event")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/r/202410192220.MeTyHPxI-lkp@intel.com
Link: https://lore.kernel.org/r/20241031203214.1585751-1-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
2024-11-04 22:03:04 -08:00
Sean Christopherson
2657b82a78 KVM: nVMX: Treat vpid01 as current if L2 is active, but with VPID disabled
When getting the current VPID, e.g. to emulate a guest TLB flush, return
vpid01 if L2 is running but with VPID disabled, i.e. if VPID is disabled
in vmcs12.  Architecturally, if VPID is disabled, then the guest and host
effectively share VPID=0.  KVM emulates this behavior by using vpid01 when
running an L2 with VPID disabled (see prepare_vmcs02_early_rare()), and so
KVM must also treat vpid01 as the current VPID while L2 is active.

Unconditionally treating vpid02 as the current VPID when L2 is active
causes KVM to flush TLB entries for vpid02 instead of vpid01, which
results in TLB entries from L1 being incorrectly preserved across nested
VM-Enter to L2 (L2=>L1 isn't problematic, because the TLB flush after
nested VM-Exit flushes vpid01).

The bug manifests as failures in the vmx_apicv_test KVM-Unit-Test, as KVM
incorrectly retains TLB entries for the APIC-access page across a nested
VM-Enter.

Opportunisticaly add comments at various touchpoints to explain the
architectural requirements, and also why KVM uses vpid01 instead of vpid02.

All credit goes to Chao, who root caused the issue and identified the fix.

Link: https://lore.kernel.org/all/ZwzczkIlYGX+QXJz@intel.com
Fixes: 2b4a5a5d56 ("KVM: nVMX: Flush current VPID (L1 vs. L2) for KVM_REQ_TLB_FLUSH_GUEST")
Cc: stable@vger.kernel.org
Cc: Like Xu <like.xu.linux@gmail.com>
Debugged-by: Chao Gao <chao.gao@intel.com>
Reviewed-by: Chao Gao <chao.gao@intel.com>
Tested-by: Chao Gao <chao.gao@intel.com>
Link: https://lore.kernel.org/r/20241031202011.1580522-1-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
2024-11-04 21:10:49 -08:00
Linus Torvalds
2e1b3cc9d7 soc: fixes for 6.12, part 2
Where the last set of fixes was mostly drivers, this time the devicetree
 changes all come at once, targeting mostly the Rockchips, Qualcomm and
 NXP platforms.
 
 The Qualcomm bugfixes target the Snapdragon X Elite laptops, specifically
 problems with PCIe and NVMe support to improve reliability, and a boot
 regresion on msm8939. Also for Snapdragon platforms, there are a number
 of correctness changes in the several platform specific device drivers,
 but none of these are as impactful.
 
 On the NXP i.MX platform, the fixes are all for 64-bit i.MX8 variants,
 correcting individual entries in the devicetree that were incorrect and
 causing the media, video, mmc and spi drivers to misbehave in minor
 ways.
 
 The Arm SCMI firmware driver gets fixes for a use-after-free bug and
 for correctly parsing firmware information.
 
 On the RISC-V side, there are three minor devicetree fixes for starfive
 and sophgo, again addressing only minor mistakes. One device driver
 patch fixes a problem with spurious interrupt handling.
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Merge tag 'arm-fixes-6.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC fixes from Arnd Bergmann:
 "Where the last set of fixes was mostly drivers, this time the
  devicetree changes all come at once, targeting mostly the Rockchips,
  Qualcomm and NXP platforms.

  The Qualcomm bugfixes target the Snapdragon X Elite laptops,
  specifically problems with PCIe and NVMe support to improve
  reliability, and a boot regresion on msm8939.

  Also for Snapdragon platforms, there are a number of correctness
  changes in the several platform specific device drivers, but none of
  these are as impactful.

  On the NXP i.MX platform, the fixes are all for 64-bit i.MX8 variants,
  correcting individual entries in the devicetree that were incorrect
  and causing the media, video, mmc and spi drivers to misbehave in
  minor ways.

  The Arm SCMI firmware driver gets fixes for a use-after-free bug and
  for correctly parsing firmware information.

  On the RISC-V side, there are three minor devicetree fixes for
  starfive and sophgo, again addressing only minor mistakes. One device
  driver patch fixes a problem with spurious interrupt handling"

* tag 'arm-fixes-6.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (63 commits)
  firmware: arm_scmi: Use vendor string in max-rx-timeout-ms
  dt-bindings: firmware: arm,scmi: Add missing vendor string
  riscv: dts: Replace deprecated snps,nr-gpios property for snps,dw-apb-gpio-port devices
  arm64: dts: rockchip: Correct GPIO polarity on brcm BT nodes
  arm64: dts: rockchip: Drop invalid clock-names from es8388 codec nodes
  ARM: dts: rockchip: Fix the realtek audio codec on rk3036-kylin
  ARM: dts: rockchip: Fix the spi controller on rk3036
  ARM: dts: rockchip: drop grf reference from rk3036 hdmi
  ARM: dts: rockchip: fix rk3036 acodec node
  arm64: dts: rockchip: remove orphaned pinctrl-names from pinephone pro
  soc: qcom: pmic_glink: Handle GLINK intent allocation rejections
  rpmsg: glink: Handle rejected intent request better
  arm64: dts: qcom: x1e80100: fix PCIe5 interconnect
  arm64: dts: qcom: x1e80100: fix PCIe4 interconnect
  arm64: dts: qcom: x1e80100: Fix up BAR spaces
  MAINTAINERS: invert Misc RISC-V SoC Support's pattern
  soc: qcom: socinfo: fix revision check in qcom_socinfo_probe()
  arm64: dts: qcom: x1e80100-qcp: fix nvme regulator boot glitch
  arm64: dts: qcom: x1e80100-microsoft-romulus: fix nvme regulator boot glitch
  arm64: dts: qcom: x1e80100-yoga-slim7x: fix nvme regulator boot glitch
  ...
2024-11-04 15:23:26 -10:00
Linus Torvalds
b9021de3ec A trivial compile test fix for x86
When CONFIG_AMD_NB is not set a COMPILE_TEST of an AMD specific driver
   fails due to a missing inline stub. Add the stub to cure it.
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Merge tag 'x86-urgent-2024-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fix from Thomas Gleixner:
 "A trivial compile test fix for x86:

  When CONFIG_AMD_NB is not set a COMPILE_TEST of an AMD specific driver
  fails due to a missing inline stub. Add the stub to cure it"

* tag 'x86-urgent-2024-11-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/amd_nb: Fix compile-testing without CONFIG_AMD_NB
2024-11-03 08:26:00 -10:00
Linus Torvalds
f7292c0934 Rust fixes for v6.12 (3nd)
Toolchain and infrastructure:
 
  - Avoid build errors with old 'rustc's without LLVM patch version
    (important since it impacts people that do not even enable Rust).
 
  - Update LLVM version for 'HAVE_CFI_ICALL_NORMALIZE_INTEGERS' in
    'depends on' condition (the fix was eventually backported rather than
    land in LLVM 19).
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Merge tag 'rust-fixes-6.12-3' of https://github.com/Rust-for-Linux/linux

Pull rust fixes from Miguel Ojeda:
 "Toolchain and infrastructure:

   - Avoid build errors with old 'rustc's without LLVM patch version
     (important since it impacts people that do not even enable Rust)

   - Update LLVM version for 'HAVE_CFI_ICALL_NORMALIZE_INTEGERS' in
     'depends on' condition (the fix was eventually backported rather
     than land in LLVM 19)"

* tag 'rust-fixes-6.12-3' of https://github.com/Rust-for-Linux/linux:
  cfi: tweak llvm version for HAVE_CFI_ICALL_NORMALIZE_INTEGERS
  kbuild: rust: avoid errors with old `rustc`s without LLVM patch version
2024-11-01 15:59:46 -10:00
Linus Torvalds
a031e15404 RISC-V Fixes for 6.11-rc6
* A fix that avoids accessing the early boot ACPI tables via unsafe
   memory attributes, which can result in incorrect ACPI table data
   appearing.  This can cause all sorts of bad behavior.
 * A fix to avoid compiler-insert library calls in the VDSO.
 * GCC+Rust builds have been disabled, to avoid issues related to ISA
   string mismatched between the GCC and LLVM Rust implementations.
 * The NX flag is now set in the EFI PE/COFF headers, which is necessary
   for some distro GRUB versions to boot images.
 * A fix to avoid leaking DT node reference counts on ACPI systems during
   cache info parsing.
 * CPU numbers are now printed as unsigned values during hotplug.
 * A pair of build fixes for usused macros, which can trigger warnings on
   some configurations.
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Merge tag 'riscv-for-linus-6.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V fixes from Palmer Dabbelt:

 - Avoid accessing the early boot ACPI tables via unsafe memory
   attributes, which can result in incorrect ACPI table data appearing.
   This can cause all sorts of bad behavior.

 - Avoid compiler-inserted library calls in the VDSO.

 - GCC+Rust builds have been disabled, to avoid issues related to ISA
   string mismatched between the GCC and LLVM Rust implementations.

 - The NX flag is now set in the EFI PE/COFF headers, which is necessary
   for some distro GRUB versions to boot images.

 - A fix to avoid leaking DT node reference counts on ACPI systems
   during cache info parsing.

 - CPU numbers are now printed as unsigned values during hotplug.

 - A pair of build fixes for usused macros, which can trigger warnings
   on some configurations.

* tag 'riscv-for-linus-6.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: Remove duplicated GET_RM
  riscv: Remove unused GENERATING_ASM_OFFSETS
  riscv: Use '%u' to format the output of 'cpu'
  riscv: Prevent a bad reference count on CPU nodes
  riscv: efi: Set NX compat flag in PE/COFF header
  RISC-V: disallow gcc + rust builds
  riscv: Do not use fortify in early code
  RISC-V: ACPI: fix early_ioremap to early_memremap
  riscv: vdso: Prevent the compiler from inserting calls to memset()
2024-11-01 08:26:38 -10:00
Linus Torvalds
3dfffd506e arm64 fixes for -rc6
- Fix handling of POR_EL0 during signal delivery so that pushing the
   signal context doesn't fail based on the pkey configuration of the
   interrupted context and align our user-visible behaviour with that of
   x86.
 
 - Fix a bogus pointer being passed to the CPU hotplug code from the
   Arm SDEI driver.
 
 - Re-enable software tag-based KASAN with GCC by using an alternative
   implementation of '__no_sanitize_address'.
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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:
 "The important one is a change to the way in which we handle protection
  keys around signal delivery so that we're more closely aligned with
  the x86 behaviour, however there is also a revert of the previous fix
  to disable software tag-based KASAN with GCC, since a workaround
  materialised shortly afterwards.

  I'd love to say we're done with 6.12, but we're aware of some
  longstanding fpsimd register corruption issues that we're almost at
  the bottom of resolving.

  Summary:

   - Fix handling of POR_EL0 during signal delivery so that pushing the
     signal context doesn't fail based on the pkey configuration of the
     interrupted context and align our user-visible behaviour with that
     of x86.

   - Fix a bogus pointer being passed to the CPU hotplug code from the
     Arm SDEI driver.

   - Re-enable software tag-based KASAN with GCC by using an alternative
     implementation of '__no_sanitize_address'"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: signal: Improve POR_EL0 handling to avoid uaccess failures
  firmware: arm_sdei: Fix the input parameter of cpuhp_remove_state()
  Revert "kasan: Disable Software Tag-Based KASAN with GCC"
  kasan: Fix Software Tag-Based KASAN with GCC
2024-11-01 07:54:11 -10:00
Linus Torvalds
6b4926494e for-6.12-rc5-tag
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Merge tag 'for-6.12-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:
 "A few more stability fixes. There's one patch adding export of MIPS
  cmpxchg helper, used in the error propagation fix.

   - fix error propagation from split bios to the original btrfs bio

   - fix merging of adjacent extents (normal operation, defragmentation)

   - fix potential use after free after freeing btrfs device structures"

* tag 'for-6.12-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: fix defrag not merging contiguous extents due to merged extent maps
  btrfs: fix extent map merging not happening for adjacent extents
  btrfs: fix use-after-free of block device file in __btrfs_free_extra_devids()
  btrfs: fix error propagation of split bios
  MIPS: export __cmpxchg_small()
2024-11-01 07:31:47 -10:00
Arnd Bergmann
566064e570 More Qualcomm Arm64 DeviceTree fixes for v6.12
Bring a range of PCIe fixes across the X Elite platform, as well as
 marking the NVMe power supply boot-on to avoid glitching the power
 supply during boot.
 
 The X Elite CRD audio configuration sees a spelling mistake corrected.
 
 On SM8450 the PCIe 1 PIPE clock definition is corrected, to fix a
 regression where this isn't able to acquire it's clocks.
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Merge tag 'qcom-arm64-fixes-for-6.12-2' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into HEAD

More Qualcomm Arm64 DeviceTree fixes for v6.12

Bring a range of PCIe fixes across the X Elite platform, as well as
marking the NVMe power supply boot-on to avoid glitching the power
supply during boot.

The X Elite CRD audio configuration sees a spelling mistake corrected.

On SM8450 the PCIe 1 PIPE clock definition is corrected, to fix a
regression where this isn't able to acquire it's clocks.

* tag 'qcom-arm64-fixes-for-6.12-2' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
  arm64: dts: qcom: x1e80100: fix PCIe5 interconnect
  arm64: dts: qcom: x1e80100: fix PCIe4 interconnect
  arm64: dts: qcom: x1e80100: Fix up BAR spaces
  arm64: dts: qcom: x1e80100-qcp: fix nvme regulator boot glitch
  arm64: dts: qcom: x1e80100-microsoft-romulus: fix nvme regulator boot glitch
  arm64: dts: qcom: x1e80100-yoga-slim7x: fix nvme regulator boot glitch
  arm64: dts: qcom: x1e80100-vivobook-s15: fix nvme regulator boot glitch
  arm64: dts: qcom: x1e80100-crd: fix nvme regulator boot glitch
  arm64: dts: qcom: x1e78100-t14s: fix nvme regulator boot glitch
  arm64: dts: qcom: x1e80100-crd Rename "Twitter" to "Tweeter"
  arm64: dts: qcom: x1e80100: Fix PCIe 6a lanes description
  arm64: dts: qcom: sm8450 fix PIPE clock specification for pcie1
  arm64: dts: qcom: x1e80100: Add Broadcast_AND region in LLCC block
  arm64: dts: qcom: x1e80100: fix PCIe5 PHY clocks
  arm64: dts: qcom: x1e80100: fix PCIe4 and PCIe6a PHY clocks

Link: https://lore.kernel.org/r/20241101143206.738617-1-andersson@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-11-01 16:10:54 +01:00
Arnd Bergmann
51c4bae066 Qualcomm Arm64 DeviceTree fix for v6.12
This reverts the conversion to use the mailbox binding for RPM IPC
 interrupts, as this broke boot on msm8939.
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Merge tag 'qcom-arm64-fixes-for-6.12' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into HEAD

Qualcomm Arm64 DeviceTree fix for v6.12

This reverts the conversion to use the mailbox binding for RPM IPC
interrupts, as this broke boot on msm8939.

* tag 'qcom-arm64-fixes-for-6.12' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
  arm64: dts: qcom: msm8939: revert use of APCS mbox for RPM

Link: https://lore.kernel.org/r/20241101142414.737828-1-andersson@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-11-01 16:10:39 +01:00
Arnd Bergmann
e5c06efdc0 RISC-V soc fixes for v6.12-rc6
StarFive:
 Two minor dts fixes, one setting the correct eth phy delay parameters
 and one disabling unused nodes that caused warnings at probe time.
 
 Firmware:
 Fix the poll_complete() implementation in the auto-update driver so that
 it behaves as the framework expects.
 
 Misc:
 Update the maintainer pattern for my dts entry, so that it covers
 the specific platforms listed , rather than including all riscv
 platforms with the list platforms excluded.
 
 Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
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Merge tag 'riscv-soc-fixes-for-v6.12-rc6' of https://git.kernel.org/pub/scm/linux/kernel/git/conor/linux into HEAD

RISC-V soc fixes for v6.12-rc6

StarFive:
Two minor dts fixes, one setting the correct eth phy delay parameters
and one disabling unused nodes that caused warnings at probe time.

Firmware:
Fix the poll_complete() implementation in the auto-update driver so that
it behaves as the framework expects.

Misc:
Update the maintainer pattern for my dts entry, so that it covers
the specific platforms listed , rather than including all riscv
platforms with the list platforms excluded.

Signed-off-by: Conor Dooley <conor.dooley@microchip.com>

* tag 'riscv-soc-fixes-for-v6.12-rc6' of https://git.kernel.org/pub/scm/linux/kernel/git/conor/linux:
  MAINTAINERS: invert Misc RISC-V SoC Support's pattern
  riscv: dts: starfive: Update ethernet phy0 delay parameter values for Star64
  riscv: dts: starfive: disable unused csi/camss nodes
  firmware: microchip: auto-update: fix poll_complete() to not report spurious timeout errors

Link: https://lore.kernel.org/r/20241031-colossal-cassette-617817c9bec3@spud
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-11-01 15:47:35 +01:00
Arnd Bergmann
896dcf4767 A number of DTS correctnes fixes, to bring down the amount of errors
reported by dtbscheck.
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Merge tag 'v6.12-rockchip-dtsfixes1' of https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into HEAD

A number of DTS correctnes fixes, to bring down the amount of errors
reported by dtbscheck.

* tag 'v6.12-rockchip-dtsfixes1' of https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip: (23 commits)
  arm64: dts: rockchip: Correct GPIO polarity on brcm BT nodes
  arm64: dts: rockchip: Drop invalid clock-names from es8388 codec nodes
  ARM: dts: rockchip: Fix the realtek audio codec on rk3036-kylin
  ARM: dts: rockchip: Fix the spi controller on rk3036
  ARM: dts: rockchip: drop grf reference from rk3036 hdmi
  ARM: dts: rockchip: fix rk3036 acodec node
  arm64: dts: rockchip: remove orphaned pinctrl-names from pinephone pro
  arm64: dts: rockchip: remove num-slots property from rk3328-nanopi-r2s-plus
  arm64: dts: rockchip: Fix LED triggers on rk3308-roc-cc
  arm64: dts: rockchip: Remove #cooling-cells from fan on Theobroma lion
  arm64: dts: rockchip: Remove undocumented supports-emmc property
  arm64: dts: rockchip: Fix bluetooth properties on Rock960 boards
  arm64: dts: rockchip: Fix bluetooth properties on rk3566 box demo
  arm64: dts: rockchip: Drop regulator-init-microvolt from two boards
  arm64: dts: rockchip: fix i2c2 pinctrl-names property on anbernic-rg353p/v
  arm64: dts: rockchip: Fix reset-gpios property on brcm BT nodes
  arm64: dts: rockchip: Fix wakeup prop names on PineNote BT node
  arm64: dts: rockchip: Remove hdmi's 2nd interrupt on rk3328
  arm64: dts: rockchip: Designate Turing RK1's system power controller
  arm64: dts: rockchip: Start cooling maps numbering from zero on ROCK 5B
  ...

Link: https://lore.kernel.org/r/2847150.mvXUDI8C0e@phil
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-11-01 14:47:37 +01:00
Arnd Bergmann
e29c29343a RISC-V Sophgo Devicetree fixes for v6.12-rc1
Just one minor fix to replace deprecated "snps,nr-gpios"
 property with "ngpios" for snps,dw-apb-gpio-port devices.
 
 Signed-off-by: Chen Wang <unicorn_wang@outlook.com>
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Merge tag 'riscv-sophgo-dt-fixes-for-v6.12-rc1' of https://github.com/sophgo/linux into HEAD

RISC-V Sophgo Devicetree fixes for v6.12-rc1

Just one minor fix to replace deprecated "snps,nr-gpios"
property with "ngpios" for snps,dw-apb-gpio-port devices.

Signed-off-by: Chen Wang <unicorn_wang@outlook.com>

* tag 'riscv-sophgo-dt-fixes-for-v6.12-rc1' of https://github.com/sophgo/linux:
  riscv: dts: Replace deprecated snps,nr-gpios property for snps,dw-apb-gpio-port devices

Link: https://lore.kernel.org/r/MA0P287MB2822A17623C51A558DB948FCFE482@MA0P287MB2822.INDP287.PROD.OUTLOOK.COM
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-11-01 14:47:23 +01:00
Arnd Bergmann
83359f6bb9 i.MX fixes for 6.12:
- An imx8qm change from Alexander Stein to fix VPU IRQs
 - An imx8 LVDS subsystem change from Diogo Silva to fix clock-output-names
 - An imx8ulp change from Haibo Chen to correct flexspi compatible string
 - An imx8mp-skov board change from Liu Ying to set correct clock rate
   for media_isp
 - An imx8mp-phyboard change from Marek Vasut to correct Video PLL1 frequency
 - An imx8mp change from Peng Fan to correct SDHC IPG clock
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Merge tag 'imx-fixes-6.12' of https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into HEAD

i.MX fixes for 6.12:

- An imx8qm change from Alexander Stein to fix VPU IRQs
- An imx8 LVDS subsystem change from Diogo Silva to fix clock-output-names
- An imx8ulp change from Haibo Chen to correct flexspi compatible string
- An imx8mp-skov board change from Liu Ying to set correct clock rate
  for media_isp
- An imx8mp-phyboard change from Marek Vasut to correct Video PLL1 frequency
- An imx8mp change from Peng Fan to correct SDHC IPG clock

* tag 'imx-fixes-6.12' of https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  arm64: dts: imx8mp-phyboard-pollux: Set Video PLL1 frequency to 506.8 MHz
  arm64: dts: imx8mp: correct sdhc ipg clk
  arm64: dts: imx8mp-skov-revb-mi1010ait-1cp1: Assign "media_isp" clock rate
  arm64: dts: imx8: Fix lvds0 device tree
  arm64: dts: imx8ulp: correct the flexspi compatible string
  arm64: dts: imx8-ss-vpu: Fix imx8qm VPU IRQs

Link: https://lore.kernel.org/r/ZxhsnnLudN2kD2Po@dragon
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2024-11-01 14:46:36 +01:00