Prathyushi Nangia c21b90f776 x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache ...

Make sure resources are not improperly shared in the op cache and
cause instruction corruption this way.

Signed-off-by: Prathyushi Nangia <prathyushi.nangia@amd.com>
Co-developed-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2026-05-11 20:06:36 -07:00

..

acpi

x86/acpi: Add acpi_get_cpu_uid() for unified ACPI CPU UID retrieval

2026-04-06 16:55:15 +02:00

apic

Merge tag 'x86-cleanups-2026-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2026-04-14 14:03:27 -07:00

cpu

x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache

2026-05-11 20:06:36 -07:00

fpu

Merge tag 'mm-stable-2026-04-13-21-45' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2026-04-15 12:59:16 -07:00

kprobes

Merge tag 'perf-core-2025-12-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2025-12-01 20:42:01 -08:00

.gitignore

…

alternative.c

x86/alternative: delay freeing of smp_locks section

2026-04-03 17:38:34 +03:00

amd_gart_64.c

Merge tag 'dma-mapping-6.19-2025-12-05' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux

2025-12-06 09:25:05 -08:00

amd_nb.c

Convert more 'alloc_obj' cases to default GFP_KERNEL arguments

2026-02-21 20:03:00 -08:00

amd_node.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

aperture_64.c

x86/platform/amd: Move the <asm/amd_nb.h> header to <asm/amd/nb.h>

2025-04-14 09:34:14 +02:00

apm_32.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

asm-offsets_32.c

x86/asm-offsets: Export certain 'struct cpuinfo_x86' fields for 64-bit asm use too

2025-05-15 09:12:07 +02:00

asm-offsets_64.c

x86/stackprotector/64: Convert to normal per-CPU variable

2025-02-18 10:15:09 +01:00

asm-offsets.c

x86/entry/vdso32: Remove open-coded DWARF in sigreturn.S

2026-01-13 16:37:58 -08:00

audit_64.c

x86/audit: Fix -Wmissing-variable-declarations warning for ia32_xyz_class

2023-08-30 10:11:16 +02:00

bootflag.c

x86/bootflag: Replace open-coded parity calculation with parity8()

2025-02-27 14:00:30 +01:00

callthunks.c

x86/paravirt: Remove not needed includes of paravirt.h

2026-01-12 11:26:52 +01:00

cet.c

x86/msr: Add explicit includes of <asm/msr.h>

2025-05-02 10:23:47 +02:00

cfi.c

x86/traps: Clarify KCFI instruction layout

2025-09-04 21:59:07 +02:00

check.c

…

cpuid.c

x86/cpuid: make cpuid_class a static const structure

2023-08-05 08:31:41 +02:00

crash_dump_32.c

…

crash_dump_64.c

…

crash.c

KVM: x86: Move bulk of emergency virtualizaton logic to virt subsystem

2026-03-04 08:52:49 -08:00

devicetree.c

x86/of: Don't use DTB for SMP setup if ACPI is enabled

2025-02-25 22:13:02 +01:00

doublefault_32.c

…

dumpstack_32.c

x86/irq: Move irq stacks to percpu hot section

2025-03-04 20:30:33 +01:00

dumpstack_64.c

x86/irq: Move irq stacks to percpu hot section

2025-03-04 20:30:33 +01:00

dumpstack.c

x86/dumpstack: Prevent KASAN false positive warnings in __show_regs()

2025-10-29 13:07:21 +01:00

e820.c

x86/boot/e820: Re-enable BIOS fallback if e820 table is empty

2026-05-07 10:04:54 +02:00

early_printk.c

Merge tag 'v6.15-rc4' into x86/asm, to pick up fixes

2025-05-06 12:03:03 +02:00

early-quirks.c

drm/intel/pciids: rename i915_pciids.h to just pciids.h

2024-10-29 16:14:04 +02:00

ebda.c

…

eisa.c

x86/EISA: Dereference memory directly instead of using readl()

2024-08-29 15:57:09 +02:00

espfix_64.c

x86/fred: No ESPFIX needed when FRED is enabled

2024-01-31 22:01:51 +01:00

fred.c

x86/fred: Remove kernel log message when initializing exceptions

2026-03-27 16:38:24 +01:00

ftrace_32.S

fgraph: Replace fgraph_ret_regs with ftrace_regs

2024-12-26 10:50:02 -05:00

ftrace_64.S

x86/fgraph: Fix return_to_handler regs.rsp value

2026-01-30 13:40:08 -08:00

ftrace.c

x86/ftrace: Implement DYNAMIC_FTRACE_WITH_JMP

2025-11-24 09:46:37 -08:00

head32.c

x86/microcode: Consolidate the loader enablement checking

2025-05-05 10:51:00 +02:00

head64.c

x86/boot: Create a confined code area for startup code

2025-09-03 18:00:01 +02:00

head_32.S

arch, mm: consolidate empty_zero_page

2026-04-05 13:53:01 -07:00

head_64.S

arch, mm: consolidate empty_zero_page

2026-04-05 13:53:01 -07:00

hpet.c

clocksource: Rewrite watchdog code completely

2026-03-20 13:36:32 +01:00

hw_breakpoint.c

x86: Restrict KVM-induced symbol exports to KVM modules where obvious/possible

2025-11-12 15:29:38 -08:00

i8237.c

syscore: Pass context data to callbacks

2025-11-14 10:01:52 +01:00

i8253.c

x86/i8253: Call clockevent_i8253_disable() with interrupts disabled

2025-04-11 07:28:20 +02:00

i8259.c

syscore: Pass context data to callbacks

2025-11-14 10:01:52 +01:00

ibt_selftest.S

x86/ibt: Convert IBT selftest to asm

2023-08-17 17:07:09 +02:00

idt.c

perf/x86/core: Register a new vector for handling mediated guest PMIs

2025-12-17 13:31:05 +01:00

io_delay.c

…

ioport.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

irq_32.c

x86/irq: Move irq stacks to percpu hot section

2025-03-04 20:30:33 +01:00

irq_64.c

x86/irq: Move irq stacks to percpu hot section

2025-03-04 20:30:33 +01:00

irq_work.c

x86/apic: Wrap IPI calls into helper functions

2023-08-09 12:00:55 -07:00

irq.c

Merge tag 'x86-irq-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2026-02-10 17:39:08 -08:00

irqflags.S

x86/cfi: Clean up linkage

2025-02-14 10:32:05 +01:00

irqinit.c

x86/fred: Install system vector handlers even if FRED isn't fully enabled

2025-08-18 14:23:08 +02:00

itmt.c

x86/itmt: Add debugfs file to show core priorities

2025-07-07 22:35:51 +02:00

jailhouse.c

x86/cpuid: Rename hypervisor_cpuid_base()/for_each_possible_hypervisor_cpuid_base() to cpuid_base_hypervisor()/for_each_possible_cpuid_base_hypervisor()

2025-05-16 10:54:47 +02:00

jump_label.c

x86/alternatives: Rename 'text_poke_queue()' to 'smp_text_poke_batch_add()'

2025-04-11 11:01:33 +02:00

kdebugfs.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

kexec-bzimage64.c

crash_dump/dm-crypt: don't print in arch-specific code

2026-04-02 23:36:24 -07:00

kgdb.c

kgdb: update outdated references to kgdb_wait()

2026-04-21 16:41:54 +01:00

ksysfs.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

kvm.c

x86/paravirt: Replace io_delay() hook with a bool

2026-03-22 08:43:05 +01:00

kvmclock.c

x86/paravirt: Move paravirt_sched_clock() related code into tsc.c

2026-01-12 18:47:39 +01:00

ldt.c

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21 01:02:28 -08:00

machine_kexec_32.c

x86/mm: Fix _pgd_alloc() for Xen PV mode

2025-04-23 07:49:14 -07:00

machine_kexec_64.c

x86/crash: Use set_memory_p() instead of __set_memory_prot()

2026-01-13 15:28:59 +01:00

Makefile

x86/kexec: Disable KCOV instrumentation after load_segments()

2026-03-30 14:15:25 +02:00

mmconf-fam10h_64.c

x86/msr: Rename 'wrmsrl()' to 'wrmsrq()'

2025-04-10 11:58:33 +02:00

module.c

x86/module: Improve relocation error messages

2025-10-14 14:45:21 -07:00

mpparse.c

x86/mpparse: Cleanup apic_printk()s

2024-08-07 18:13:28 +02:00

msr.c

x86/msr: Add CPU_OUT_OF_SPEC taint name to "unrecognized" pr_warn(msg)

2025-11-05 13:14:42 +01:00

nmi_selftest.c

x86/nmi: Clean up NMI selftest

2025-04-01 22:26:32 +02:00

nmi.c

x86: Restrict KVM-induced symbol exports to KVM modules where obvious/possible

2025-11-12 15:29:38 -08:00

paravirt-spinlocks.c

x86/pvlocks: Move paravirt spinlock functions into own header

2026-01-13 14:57:45 +01:00

paravirt.c

x86/paravirt: Replace io_delay() hook with a bool

2026-03-22 08:43:05 +01:00

pci-dma.c

Documentation: Merge x86-specific boot options doc into kernel-parameters.txt

2024-12-10 18:25:40 +01:00

pcspeaker.c

…

perf_regs.c

…

platform-quirks.c

x86/quirks: Include linux/pnp.h for arch_pnpbios_disabled()

2023-05-18 11:56:18 -07:00

pmem.c

…

probe_roms.c

x86/sev: Skip ROM range scans and validation for SEV-SNP guests

2024-03-26 15:22:35 +01:00

process_32.c

x86/process/32: Use correct type for 'gs' variable in __show_regs() to avoid zero-extension

2026-03-31 09:50:10 +02:00

process_64.c

x86/process/64: Use savesegment() in __show_regs() instead of inline asm

2026-03-31 09:50:10 +02:00

process.c

Merge tag 'x86_tdx_for_6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2025-10-04 10:01:30 -07:00

process.h

…

ptrace.c

x86/ptrace: Use USER_REGSET_NOTE_TYPE() to specify regset note names

2025-07-14 22:27:48 -07:00

pvclock.c

locking/atomic: treewide: use raw_atomic*_<op>()

2023-06-05 09:57:20 +02:00

quirks.c

x86/platform: Fix missing declaration of 'x86_apple_machine'

2025-02-27 22:52:37 +01:00

reboot_fixups_32.c

x86/msr: Rename 'wrmsrl()' to 'wrmsrq()'

2025-04-10 11:58:33 +02:00

reboot.c

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2026-04-17 07:18:03 -07:00

relocate_kernel_32.S

x86/asm: Remove semicolon from "rep" prefixes

2025-04-18 09:33:33 +02:00

relocate_kernel_64.S

x86/kexec: Disable LASS during relocate kernel

2025-11-18 10:38:26 -08:00

resource.c

pcmcia: remove obsolete host controller drivers

2026-03-30 07:28:13 +02:00

rethook.c

objtool: Remove newlines and tabs from annotation macros

2025-12-03 19:42:37 +01:00

rtc.c

x86: rtc: Drop PNP device check

2026-02-26 18:48:43 +01:00

setup_percpu.c

x86/smp: Move this_cpu_off to percpu hot section

2025-03-04 20:30:33 +01:00

setup.c

memblock, treewide: make memblock_free() handle late freeing

2026-04-01 11:20:15 +03:00

sev_verify_cbit.S

x86/boot: Use 32-bit XOR to clear registers

2024-03-01 12:47:37 +01:00

shstk.c

x86/shstk: Prevent deadlock during shstk sigreturn

2026-04-20 22:54:24 +02:00

signal_32.c

x86/entry/vdso: Rename vdso_image_* to vdso*_image

2026-01-13 15:33:20 -08:00

signal_64.c

x86/fred/signal: Prevent immediate repeat of single step trap on return from SIGTRAP handler

2025-06-09 08:50:58 -07:00

signal.c

x86/fpu: Convert task_struct::thread.fpu accesses to use x86_task_fpu()

2025-04-14 08:18:29 +02:00

smp.c

KVM: x86: Move bulk of emergency virtualizaton logic to virt subsystem

2026-03-04 08:52:49 -08:00

smpboot.c

x86/topo: Fix SNC topology mess

2026-03-04 16:35:09 +01:00

stacktrace.c

…

static_call.c

objtool: Remove newlines and tabs from annotation macros

2025-12-03 19:42:37 +01:00

step.c

x86/msr: Prepare for including <linux/percpu.h> into <asm/msr.h>

2024-03-04 12:01:39 +01:00

sys_ia32.c

fs: fix archiecture-specific compat_ftruncate64

2026-03-23 12:41:57 +01:00

sys_x86_64.c

arch/x86: teach arch_get_unmapped_area_vmflags to handle hugetlb mappings

2024-11-06 20:11:10 -08:00

tboot.c

x86/e820: Drop obsolete E820_TYPE_RESERVED_KERN and related code

2025-02-21 16:05:00 +01:00

time.c

x86: stop playing stack games in profile_pc()

2024-06-28 14:27:22 -07:00

tls.c

x86/tls: Clean up 'sel' variable usage in do_set_thread_area()

2026-03-31 09:50:11 +02:00

tls.h

…

trace_clock.c

x86/msr: Add explicit includes of <asm/msr.h>

2025-05-02 10:23:47 +02:00

trace.c

…

traps.c

x86/vsyscall: Restore vsyscall=xonly mode under LASS

2026-03-19 15:11:13 -07:00

tsc_msr.c

x86/cpu: Fix #define name for Intel CPU model 0x5A

2025-02-04 10:05:53 -08:00

tsc_sync.c

x86/msr: Add explicit includes of <asm/msr.h>

2025-05-02 10:23:47 +02:00

tsc.c

clocksource: Rewrite watchdog code completely

2026-03-20 13:36:32 +01:00

umip.c

x86/traps: Consolidate user fixups in the #GP handler

2026-03-19 15:11:13 -07:00

unwind_frame.c

…

unwind_guess.c

…

unwind_orc.c

objtool/x86: Reorder ORC register numbering

2026-03-18 09:38:52 +01:00

uprobes.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

verify_cpu.S

x86/cpufeatures: Generate the <asm/cpufeaturemasks.h> header based on build config

2025-03-19 11:15:11 +01:00

vm86_32.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

vmcore_info_32.c

crash: split vmcoreinfo exporting code out from crash_core.c

2024-02-23 17:48:22 -08:00

vmcore_info_64.c

crash: split vmcoreinfo exporting code out from crash_core.c

2024-02-23 17:48:22 -08:00

vmlinux.lds.S

kbuild: Split .modinfo out from ELF_DETAILS

2026-02-26 11:50:19 -07:00

vsmp_64.c

x86/paravirt: Remove not needed includes of paravirt.h

2026-01-12 11:26:52 +01:00

x86_init.c

treewide: Update email address

2026-01-11 06:09:11 -10:00