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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
..
amd
perf/x86/amd/ibs: Fix comment typo in ibs_op_data
2026-03-06 11:37:59 +01:00
cpuid
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e820
x86/boot/e820: Simplify the e820__range_remove() API
2025-12-14 09:19:42 +01:00
fpu
x86/fpu: Correct the comment explaining what xfeatures_in_use() does
2026-04-08 12:32:06 +02:00
numachip
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shared
x86/tdx: Rename TDX_ATTR_* to TDX_TD_ATTR_*
2026-03-03 16:06:49 -08:00
trace
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uv
x86/platform/uv: Fix UBSAN array-index-out-of-bounds
2025-12-14 08:46:53 +01:00
vdso
Merge tag 'x86_entry_for_7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2026-02-10 19:34:26 -08:00
xen
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acenv.h
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acpi.h
ACPI: Centralize acpi_get_cpu_uid() declaration in include/linux/acpi.h
2026-04-06 16:55:16 +02:00
acrn.h
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agp.h
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alternative.h
objtool: Remove newlines and tabs from annotation macros
2025-12-03 19:42:37 +01:00
apic.h
x86/paravirt: Remove not needed includes of paravirt.h
2026-01-12 11:26:52 +01:00
apicdef.h
x86/apic: Drop AMD Extended Interrupt LVT macros
2026-04-04 00:56:40 +02:00
apm.h
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arch_hweight.h
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archrandom.h
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asm-offsets.h
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asm-prototypes.h
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asm.h
x86/asm: Remove ANNOTATE_DATA_SPECIAL usage
2025-12-03 16:53:19 +01:00
atomic64_32.h
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atomic64_64.h
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atomic.h
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audit.h
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barrier.h
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bios_ebda.h
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bitops.h
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boot.h
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bootparam_utils.h
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bug.h
x86/headers: Replace __ASSEMBLY__ stragglers with __ASSEMBLER__
2026-02-23 11:19:12 +01:00
bugs.h
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cache.h
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cacheflush.h
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cacheinfo.h
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ce4100.h
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cfi.h
x86/cfi: Fix CFI rewrite for odd alignments
2026-02-23 11:19:11 +01:00
checksum_32.h
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checksum_64.h
x86/lib: Inline csum_ipv6_magic()
2026-01-05 10:14:05 -08:00
checksum.h
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clock_inlined.h
x86/apic: Enable TSC coupled programming mode
2026-02-27 16:40:09 +01:00
clocksource.h
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cmdline.h
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cmpxchg_32.h
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cmpxchg_64.h
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cmpxchg.h
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coco.h
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compat.h
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cpu_device_id.h
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cpu_entry_area.h
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cpu.h
x86/acpi: Add acpi_get_cpu_uid() for unified ACPI CPU UID retrieval
2026-04-06 16:55:15 +02:00
cpufeature.h
Merge tag 'objtool-urgent-2025-12-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2025-12-06 11:56:51 -08:00
cpufeatures.h
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
2026-04-17 07:18:03 -07:00
cpuidle_haltpoll.h
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cpumask.h
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crash_reserve.h
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crash.h
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current.h
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debugreg.h
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delay.h
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desc_defs.h
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desc.h
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device.h
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div64.h
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dma-mapping.h
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dma.h
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dmi.h
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doublefault.h
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dwarf2.h
x86/entry/vdso32: Remove open-coded DWARF in sigreturn.S
2026-01-13 16:37:58 -08:00
edac.h
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efi.h
x86/efi: Restore IRQ state in EFI page fault handler
2026-05-05 09:31:28 +02:00
elf.h
x86/elf: Use savesegment() for segment register reads in ELF core dump
2026-03-31 09:50:10 +02:00
elfcore-compat.h
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emergency-restart.h
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emulate_prefix.h
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enclu.h
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entry-common.h
randomize_kstack: Unify random source across arches
2026-03-24 21:12:03 -07:00
espfix.h
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exec.h
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extable_fixup_types.h
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extable.h
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fixmap.h
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floppy.h
block/floppy: Don't use REALLY_SLOW_IO for delays
2026-03-22 08:43:23 +01:00
fpu.h
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frame.h
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fred.h
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fsgsbase.h
x86/asm/fsgsbase: Remove unnecessary "memory" clobbers from FS/GS base (read-) accessors
2026-03-30 09:10:15 +02:00
ftrace.h
x86/fgraph,bpf: Switch kprobe_multi program stack unwind to hw_regs path
2026-01-30 13:40:08 -08:00
futex.h
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gart.h
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GEN-for-each-reg.h
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genapic.h
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geode.h
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gsseg.h
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hardirq.h
perf/x86/core: Register a new vector for handling mediated guest PMIs
2025-12-17 13:31:05 +01:00
highmem.h
x86/paravirt: Remove not needed includes of paravirt.h
2026-01-12 11:26:52 +01:00
hpet.h
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hugetlb.h
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hw_breakpoint.h
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hw_irq.h
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hyperv_timer.h
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hypervisor.h
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i8259.h
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ia32.h
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ibt.h
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idtentry.h
perf/x86/core: Register a new vector for handling mediated guest PMIs
2025-12-17 13:31:05 +01:00
imr.h
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inat_types.h
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inat.h
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init.h
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insn-eval.h
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insn.h
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inst.h
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intel_ds.h
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intel_pt.h
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intel_punit_ipc.h
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intel_telemetry.h
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intel-family.h
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intel-mid.h
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invpcid.h
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io_apic.h
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io_bitmap.h
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io.h
block/floppy: Don't use REALLY_SLOW_IO for delays
2026-03-22 08:43:23 +01:00
iomap.h
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iommu.h
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iosf_mbi.h
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irq_remapping.h
x86/irq_remapping: Sanitize posted_msi_supported()
2025-12-18 22:59:40 +01:00
irq_stack.h
objtool: Remove newlines and tabs from annotation macros
2025-12-03 19:42:37 +01:00
irq_vectors.h
perf/x86/core: Register a new vector for handling mediated guest PMIs
2025-12-17 13:31:05 +01:00
irq_work.h
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irq.h
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irqdomain.h
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irqflags.h
x86/irqflags: Preemptively move include paravirt.h directive where it belongs
2026-03-22 08:42:44 +01:00
ist.h
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jailhouse_para.h
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jump_label.h
objtool: Remove newlines and tabs from annotation macros
2025-12-03 19:42:37 +01:00
kasan.h
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kaslr.h
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kbdleds.h
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Kbuild
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kdebug.h
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kexec-bzimage64.h
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kexec.h
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kfence.h
x86/kfence: fix booting on 32bit non-PAE systems
2026-02-02 18:43:55 -08:00
kgdb.h
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kmsan.h
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kprobes.h
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kvm_host.h
Merge tag 'kvm-x86-svm-7.1' of https://github.com/kvm-x86/linux into HEAD
2026-04-13 19:00:43 +02:00
kvm_page_track.h
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kvm_para.h
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kvm_types.h
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kvm_vcpu_regs.h
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kvm-x86-ops.h
KVM: x86: Immediately fail the build when possible if required #define is missing
2026-03-12 10:56:36 -07:00
kvm-x86-pmu-ops.h
KVM: x86: Immediately fail the build when possible if required #define is missing
2026-03-12 10:56:36 -07:00
kvmclock.h
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linkage.h
x86/cfi: Fix CFI rewrite for odd alignments
2026-02-23 11:19:11 +01:00
local.h
x86/local: Remove trailing semicolon from _ASM_XADD in local_add_return()
2026-03-08 19:56:49 +01:00
mach_timer.h
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mach_traps.h
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math_emu.h
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mc146818rtc.h
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mce.h
x86/mce, EDAC/mce_amd: Add new SMCA bank types
2026-03-11 13:51:59 +01:00
mem_encrypt.h
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memtype.h
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microcode.h
x86/cpu: Add platform ID to CPU info structure
2026-03-05 12:25:32 -08:00
misc.h
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mman.h
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mmconfig.h
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mmu_context.h
x86/mm/tlb: Make enter_lazy_tlb() always inline on x86
2026-03-06 06:21:27 +01:00
mmu.h
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module.h
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mpspec_def.h
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mpspec.h
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mshyperv.h
x86/paravirt: Remove not needed includes of paravirt.h
2026-01-12 11:26:52 +01:00
msi.h
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msr-index.h
x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache
2026-05-11 20:06:36 -07:00
msr-trace.h
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msr.h
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mtrr.h
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mwait.h
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nmi.h
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nops.h
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nospec-branch.h
Merge tag 'objtool-urgent-2025-12-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2025-12-06 11:56:51 -08:00
numa.h
x86/numa: Store extra copy of numa_nodes_parsed
2026-03-04 16:35:08 +01:00
olpc_ofw.h
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olpc.h
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orc_header.h
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orc_lookup.h
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orc_types.h
objtool/x86: Reorder ORC register numbering
2026-03-18 09:38:52 +01:00
page_32_types.h
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page_32.h
x86/mm: simplify clear_page_*
2026-01-20 19:24:40 -08:00
page_64_types.h
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page_64.h
x86/clear_page: introduce clear_pages()
2026-01-20 19:24:40 -08:00
page_types.h
mm: convert do_brk_flags() to use vma_flags_t
2026-04-05 13:53:40 -07:00
page.h
treewide: provide a generic clear_user_page() variant
2026-01-20 19:24:39 -08:00
paravirt_types.h
x86/paravirt: Replace io_delay() hook with a bool
2026-03-22 08:43:05 +01:00
paravirt-base.h
x86/paravirt: Replace io_delay() hook with a bool
2026-03-22 08:43:05 +01:00
paravirt-spinlock.h
x86/paravirt: Use XOR r32,r32 to clear register in pv_vcpu_is_preempted()
2026-01-15 11:44:29 +01:00
paravirt.h
x86/paravirt: Replace io_delay() hook with a bool
2026-03-22 08:43:05 +01:00
parport.h
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pc-conf-reg.h
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pci_x86.h
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pci-direct.h
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pci-functions.h
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pci.h
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percpu.h
x86/headers: Replace __ASSEMBLY__ stragglers with __ASSEMBLER__
2026-02-23 11:19:12 +01:00
perf_event_p4.h
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perf_event.h
perf/amd/ibs: Add new MSRs and CPUID bits definitions
2026-02-27 16:40:24 +01:00
pgalloc.h
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pgtable_32_areas.h
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pgtable_32_types.h
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pgtable_32.h
x86/paravirt: Remove not needed includes of paravirt.h
2026-01-12 11:26:52 +01:00
pgtable_64_types.h
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pgtable_64.h
x86/xen: Build identity mapping page tables dynamically for XENPV
2026-03-03 14:21:44 +01:00
pgtable_areas.h
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pgtable_types.h
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pgtable-2level_types.h
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pgtable-2level.h
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pgtable-3level_types.h
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pgtable-3level.h
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pgtable-invert.h
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pgtable.h
Merge tag 's390-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
2026-04-22 11:13:45 -07:00
pkeys.h
mm/pkeys: remove unused tsk parameter from arch_set_user_pkey_access()
2026-04-05 13:52:57 -07:00
pkru.h
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platform_sst_audio.h
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pm-trace.h
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posix_types.h
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posted_intr.h
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preempt.h
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probe_roms.h
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processor-cyrix.h
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processor-flags.h
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processor.h
x86/cpu: Add platform ID to CPU info structure
2026-03-05 12:25:32 -08:00
prom.h
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proto.h
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pti.h
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ptrace.h
x86/paravirt: Introduce new paravirt-base.h header
2026-01-12 18:58:28 +01:00
purgatory.h
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pvclock-abi.h
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pvclock.h
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qrwlock.h
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qspinlock_paravirt.h
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qspinlock.h
x86/pvlocks: Move paravirt spinlock functions into own header
2026-01-13 14:57:45 +01:00
realmode.h
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reboot_fixups.h
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reboot.h
KVM: x86: Move bulk of emergency virtualizaton logic to virt subsystem
2026-03-04 08:52:49 -08:00
resctrl.h
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rmwcc.h
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rqspinlock.h
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runtime-const.h
x86/headers: Replace __ASSEMBLY__ stragglers with __ASSEMBLER__
2026-02-23 11:19:12 +01:00
seccomp.h
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sections.h
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segment.h
x86/asm/segment: Implement loadsegment()/savesegment() macros with static inline helpers
2026-03-30 09:10:16 +02:00
serial.h
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set_memory.h
x86/crash: Use set_memory_p() instead of __set_memory_prot()
2026-01-13 15:28:59 +01:00
setup_arch.h
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setup_data.h
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setup.h
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sev-common.h
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sev.h
x86/sev: Create snp_shutdown()
2026-03-29 12:15:17 +02:00
sgx.h
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shmparam.h
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shstk.h
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sigcontext.h
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sigframe.h
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sighandling.h
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signal.h
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simd.h
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smap.h
Merge tag 'objtool-urgent-2025-12-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2025-12-06 11:56:51 -08:00
smp.h
x86/acpi: Add acpi_get_cpu_uid() for unified ACPI CPU UID retrieval
2026-04-06 16:55:15 +02:00
softirq_stack.h
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sparsemem.h
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spec-ctrl.h
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special_insns.h
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spinlock_types.h
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spinlock.h
x86/paravirt: Remove not needed includes of paravirt.h
2026-01-12 11:26:52 +01:00
stackprotector.h
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stacktrace.h
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static_call.h
objtool: Remove newlines and tabs from annotation macros
2025-12-03 19:42:37 +01:00
string_32.h
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string_64.h
arch/x86: replace "__auto_type" with "auto"
2025-12-08 15:32:15 -08:00
string.h
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suspend_32.h
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suspend_64.h
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suspend.h
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svm.h
KVM: nSVM: Sanitize INT/EVENTINJ fields when copying from vmcb12
2026-03-04 16:09:07 -08:00
switch_to.h
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sync_bitops.h
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sync_core.h
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syscall_wrapper.h
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syscall.h
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syscalls.h
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tdx_global_metadata.h
x86/virt/tdx: Retrieve TDX module version
2026-02-25 14:46:33 -08:00
tdx.h
KVM: x86/tdx: Do VMXON and TDX-Module initialization during subsys init
2026-03-04 08:52:59 -08:00
text-patching.h
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thermal.h
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thread_info.h
x86/xen: use lazy_mmu_state when context-switching
2026-01-20 19:24:35 -08:00
time.h
clocksource: Rewrite watchdog code completely
2026-03-20 13:36:32 +01:00
timer.h
x86/paravirt: Move paravirt_sched_clock() related code into tsc.c
2026-01-12 18:47:39 +01:00
timex.h
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tlb.h
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tlbbatch.h
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tlbflush.h
x86/mm/tlb: Make enter_lazy_tlb() always inline on x86
2026-03-06 06:21:27 +01:00
topology.h
x86/topo: Add topology_num_nodes_per_package()
2026-03-04 16:35:08 +01:00
trace_clock.h
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trap_pf.h
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trapnr.h
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traps.h
x86/bug: Handle __WARN_printf() trap in early_fixup_exception()
2026-02-23 11:19:11 +01:00
tsc.h
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uaccess_32.h
x86: rename and clean up __copy_from_user_inatomic_nocache()
2026-03-30 15:05:57 -07:00
uaccess_64.h
x86-64/arm64/powerpc: clean up and rename __copy_from_user_flushcache
2026-03-30 15:05:57 -07:00
uaccess.h
x86: rename and clean up __copy_from_user_inatomic_nocache()
2026-03-30 15:05:57 -07:00
umip.h
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unaccepted_memory.h
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unistd.h
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unwind_hints.h
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unwind_user.h
x86/unwind_user: Simplify unwind_user_word_size()
2025-12-17 13:31:08 +01:00
unwind.h
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uprobes.h
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user32.h
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user_32.h
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user_64.h
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user.h
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vdso.h
x86/vdso: Clean up remnants of VDSO32_NOTE_MASK
2026-03-31 09:43:29 +02:00
vermagic.h
x86/cpu: Remove M486/M486SX/ELAN support
2026-03-30 11:39:42 +02:00
vga.h
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vgtod.h
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video.h
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virt.h
x86/virt: Add refcounting of VMX/SVM usage to support multiple in-kernel users
2026-03-04 08:52:52 -08:00
vm86.h
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vmalloc.h
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vmware.h
x86/vmware: Fix hypercall clobbers
2026-02-06 14:51:03 -08:00
vmx.h
KVM: VMX: Move architectural "vmcs" and "vmcs_hdr" structures to public vmx.h
2026-03-04 08:52:26 -08:00
vmxfeatures.h
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vsyscall.h
x86/vsyscall: Restore vsyscall=xonly mode under LASS
2026-03-19 15:11:13 -07:00
word-at-a-time.h
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x86_init.h
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