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kernel-aes67/arch/x86/include/asm
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Linus Torvalds 02b670c1f8 x86/mm: Remove broken vsyscall emulation code from the page fault code 
The syzbot-reported stack trace from hell in this discussion thread
actually has three nested page faults:

  https://lore.kernel.org/r/000000000000d5f4fc0616e816d4@google.com

... and I think that's actually the important thing here:

 - the first page fault is from user space, and triggers the vsyscall
   emulation.

 - the second page fault is from __do_sys_gettimeofday(), and that should
   just have caused the exception that then sets the return value to
   -EFAULT

 - the third nested page fault is due to _raw_spin_unlock_irqrestore() ->
   preempt_schedule() -> trace_sched_switch(), which then causes a BPF
   trace program to run, which does that bpf_probe_read_compat(), which
   causes that page fault under pagefault_disable().

It's quite the nasty backtrace, and there's a lot going on.

The problem is literally the vsyscall emulation, which sets

        current->thread.sig_on_uaccess_err = 1;

and that causes the fixup_exception() code to send the signal *despite* the
exception being caught.

And I think that is in fact completely bogus.  It's completely bogus
exactly because it sends that signal even when it *shouldn't* be sent -
like for the BPF user mode trace gathering.

In other words, I think the whole "sig_on_uaccess_err" thing is entirely
broken, because it makes any nested page-faults do all the wrong things.

Now, arguably, I don't think anybody should enable vsyscall emulation any
more, but this test case clearly does.

I think we should just make the "send SIGSEGV" be something that the
vsyscall emulation does on its own, not this broken per-thread state for
something that isn't actually per thread.

The x86 page fault code actually tried to deal with the "incorrect nesting"
by having that:

                if (in_interrupt())
                        return;

which ignores the sig_on_uaccess_err case when it happens in interrupts,
but as shown by this example, these nested page faults do not need to be
about interrupts at all.

IOW, I think the only right thing is to remove that horrendously broken
code.

The attached patch looks like the ObviouslyCorrect(tm) thing to do.

NOTE! This broken code goes back to this commit in 2011:

  4fc3490114 ("x86-64: Set siginfo and context on vsyscall emulation faults")

... and back then the reason was to get all the siginfo details right.
Honestly, I do not for a moment believe that it's worth getting the siginfo
details right here, but part of the commit says:

    This fixes issues with UML when vsyscall=emulate.

... and so my patch to remove this garbage will probably break UML in this
situation.

I do not believe that anybody should be running with vsyscall=emulate in
2024 in the first place, much less if you are doing things like UML. But
let's see if somebody screams.

Reported-and-tested-by: syzbot+83e7f982ca045ab4405c@syzkaller.appspotmail.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Andy Lutomirski <luto@kernel.org>
Link: https://lore.kernel.org/r/CAHk-=wh9D6f7HUkDgZHKmDCHUQmp+Co89GP+b8+z+G56BKeyNg@mail.gmail.com
 		2024-05-01 09:41:43 +02:00
..
e820 x86/e820: Add a new e820 table update helper 2024-04-29 11:15:31 +02:00
fpu Linux 6.8-rc4 2024-02-14 10:45:07 +01:00
numachip
…
shared x86/virt/tdx: Get module global metadata for module initialization 2023-12-08 09:12:18 -08:00
trace
…
uv arch/x86: Fix typos 2024-01-03 11:46:22 +01:00
vdso asm-generic cleanups for 6.8 2024-01-10 18:13:44 -08:00
xen x86/xen: attempt to inflate the memory balloon on PVH 2024-03-13 17:48:26 +01:00
GEN-for-each-reg.h
…
Kbuild x86/headers: Remove <asm/export.h> 2023-10-03 10:38:08 +02:00
acenv.h
…
acpi.h acpi/processor: sanitize _OSC/_PDC capabilities for Xen dom0 2023-11-13 07:22:00 +01:00
acrn.h x86/acrn: Set up timekeeping 2022-08-04 11:11:59 +02:00
agp.h char/agp: consolidate {alloc,free}_gatt_pages() 2023-02-13 22:13:12 +01:00
alternative.h x86/bpf: Fix IP for relocating call depth accounting 2024-04-01 20:37:56 -07:00
amd-ibs.h perf/x86/amd: Add IBS OP_DATA2 DataSrc bit definitions 2022-09-29 12:20:54 +02:00
amd_hsmp.h platform/x86: Add AMD system management interface 2022-03-02 11:42:36 +01:00
amd_nb.h arch/x86: Fix typos 2024-01-03 11:46:22 +01:00
apic.h x86/apic: Force native_apic_mem_read() to use the MOV instruction 2024-04-08 15:37:57 +02:00
apicdef.h x86/apic: Drop struct local_apic 2023-11-21 17:23:35 +01:00
apm.h x86/apm: Don't access __preempt_count with zeroed fs 2018-07-16 17:59:57 +02:00
arch_hweight.h
…
archrandom.h random: handle archrandom with multiple longs 2022-07-25 13:26:14 +02:00
asm-offsets.h
…
asm-prototypes.h x86/bugs: Fix the SRSO mitigation on Zen3/4 2024-03-29 12:13:12 -07:00
asm.h x86/sev: Fix position dependent variable references in startup code 2024-02-06 16:38:42 +01:00
atomic.h locking/atomic: treewide: delete arch_atomic_*() kerneldoc 2023-06-05 09:57:24 +02:00
atomic64_32.h locking/atomic: treewide: delete arch_atomic_*() kerneldoc 2023-06-05 09:57:24 +02:00
atomic64_64.h locking/atomic: treewide: delete arch_atomic_*() kerneldoc 2023-06-05 09:57:24 +02:00
audit.h x86/audit: Fix -Wmissing-variable-declarations warning for ia32_xyz_class 2023-08-30 10:11:16 +02:00
barrier.h sched: Add missing memory barrier in switch_mm_cid 2024-04-16 13:59:45 +02:00
bios_ebda.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
bitops.h Many singleton patches against the MM code. The patch series which are 2023-11-02 19:38:47 -10:00
boot.h x86/efistub: Remap kernel text read-only before dropping NX attribute 2024-03-09 11:37:18 +01:00
bootparam_utils.h docs: move x86 documentation into Documentation/arch/ 2023-03-30 12:58:51 -06:00
bug.h
…
bugs.h x86/cpu: Switch to arch_cpu_finalize_init() 2023-06-16 10:15:59 +02:00
cache.h
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cacheflush.h
…
cacheinfo.h x86/cpu: Move cpu_l[l2]c_id into topology info 2023-10-10 14:38:18 +02:00
ce4100.h
…
cfi.h cfi: Add CFI_NOSEAL() 2023-12-15 16:25:55 -08:00
checksum.h x86: kasan: kmsan: support CONFIG_GENERIC_CSUM on x86, enable it for KASAN/KMSAN 2022-10-03 14:03:24 -07:00
checksum_32.h
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checksum_64.h net: checksum: drop the linux/uaccess.h include 2023-01-27 11:19:46 +00:00
clocksource.h
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cmdline.h
…
cmpxchg.h locking/atomic/x86: Introduce arch_sync_try_cmpxchg() 2023-10-09 18:14:25 +02:00
cmpxchg_32.h arch: Remove cmpxchg_double 2023-06-05 09:36:39 +02:00
cmpxchg_64.h locking/atomic: x86: add preprocessor symbols 2023-06-05 09:57:17 +02:00
coco.h x86/tdx: Preserve shared bit on mprotect() 2024-04-24 08:11:43 -07:00
compat.h
…
cpu.h x86/cpu/topology: Rework possible CPU management 2024-02-15 22:07:43 +01:00
cpu_device_id.h
…
cpu_entry_area.h x86/mm: Randomize per-cpu entry area 2022-12-15 10:37:26 -08:00
cpufeature.h x86/cpufeatures: Add CPUID_LNX_5 to track recently added Linux-defined word 2024-04-04 17:42:19 -07:00
cpufeatures.h x86/bhi: Mitigate KVM by default 2024-04-08 19:27:06 +02:00
cpuid.h x86/cpu: Provide cpuid_read() et al. 2024-02-15 22:07:36 +01:00
cpuidle_haltpoll.h
…
cpumask.h x86/smpboot: Move synchronization masks to SMP boot code 2023-05-15 13:44:52 +02:00
crash.h
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crash_reserve.h crash: use macro to add crashk_res into iomem early for specific arch 2024-03-26 11:14:12 -07:00
current.h Merge branch 'x86/bugs' into x86/core, to pick up pending changes before dependent patches 2024-02-14 10:49:37 +01:00
debugreg.h x86/msr: Prepare for including <linux/percpu.h> into <asm/msr.h> 2024-03-04 12:01:39 +01:00
delay.h
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desc.h Merge branch 'linus' into x86/boot, to resolve conflict 2024-03-12 09:55:57 +01:00
desc_defs.h x86/asm: Always set A (accessed) flag in GDT descriptors 2023-12-20 10:57:51 +01:00
device.h
…
disabled-features.h x86/cpufeatures: Add new word for scattered features 2024-03-25 11:16:54 +01:00
div64.h x86/asm: Avoid unneeded __div64_32 function definition 2023-08-03 12:08:35 +02:00
dma-mapping.h dma-mapping: no need to pass a bus_type into get_arch_dma_ops() 2023-02-15 12:35:20 +01:00
dma.h PCI: Move isa_dma_bridge_buggy out of asm/dma.h 2022-07-22 17:24:47 -05:00
dmi.h
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doublefault.h x86: Avoid missing-prototype warnings for doublefault code 2023-05-18 11:56:18 -07:00
dwarf2.h
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edac.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
efi.h x86/efi: Implement arch_ima_efi_boot_mode() in source file 2024-01-30 15:17:17 +01:00
elf.h x86/vdso: Move vDSO to mmap region 2024-02-27 00:23:55 +01:00
elfcore-compat.h
…
emergency-restart.h
…
emulate_prefix.h
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enclu.h x86/vdso: Implement a vDSO for Intel SGX enclave call 2020-11-18 18:02:50 +01:00
entry-common.h x86/bugs: Use ALTERNATIVE() instead of mds_user_clear static key 2024-02-19 16:31:49 -08:00
espfix.h init: Invoke init_espfix_bsp() from mm_init() 2017-12-22 20:13:05 +01:00
exec.h
…
extable.h
…
extable_fixup_types.h x86/fred: Fixup fault on ERETU by jumping to fred_entrypoint_user 2024-01-31 22:03:04 +01:00
fb.h fbdev: Replace fb_pgprotect() with pgprot_framebuffer() 2023-10-12 09:20:46 +02:00
fixmap.h
…
floppy.h
…
frame.h
…
fred.h x86/fred: Add FRED initialization functions 2024-01-31 22:03:32 +01:00
fsgsbase.h x86/msr: Prepare for including <linux/percpu.h> into <asm/msr.h> 2024-03-04 12:01:39 +01:00
ftrace.h Tracing updates for 6.5: 2023-06-30 10:33:17 -07:00
futex.h
…
gart.h
…
genapic.h
…
geode.h
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gsseg.h x86/gsseg: Use the LKGS instruction if available for load_gs_index() 2023-01-13 10:07:27 +01:00
hardirq.h x86: replace CONFIG_HAVE_KVM with IS_ENABLED(CONFIG_KVM) 2024-02-08 08:45:35 -05:00
highmem.h mm/usercopy: Check kmap addresses properly 2022-04-13 12:15:50 -07:00
hpet.h x86/hpet: Move MSI support into hpet.c 2020-10-28 20:26:25 +01:00
hugetlb.h
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hw_breakpoint.h perf/hw_breakpoint: Optimize constant number of breakpoint slots 2022-08-30 10:56:22 +02:00
hw_irq.h genirq/matrix: Dynamic bitmap allocation 2024-02-23 10:18:44 +01:00
hyperv-tlfs.h hyperv-tlfs: Change prefix of generic HV_REGISTER_* MSRs to HV_MSR_* 2024-03-04 06:59:18 +00:00
hyperv_timer.h clocksource/drivers/hyper-v: Include asm/hyperv-tlfs.h not asm/mshyperv.h 2022-11-17 13:58:32 +01:00
hypervisor.h
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i8259.h x86/i8259: Skip probing when ACPI/MADT advertises PCAT compatibility 2023-10-27 20:36:49 +02:00
ia32.h x86/fred: FRED entry/exit and dispatch code 2024-01-31 22:02:31 +01:00
ia32_unistd.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ibt.h x86/alternative: Rename apply_ibt_endbr() 2023-07-10 09:52:23 +02:00
idtentry.h S390: 2024-03-15 13:03:13 -07:00
imr.h
…
inat.h
…
inat_types.h
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init.h x86/head/64: Move the __head definition to <asm/init.h> 2023-10-17 14:51:14 +02:00
insn-eval.h x86/insn: Avoid namespace clash by separating instruction decoder MMIO type from MMIO trace type 2023-01-03 18:46:06 +01:00
insn.h
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inst.h
…
intel-family.h x86/cpu: Add model number for another Intel Arrow Lake mobile processor 2024-03-24 04:08:10 +01:00
intel-mid.h x86/platform/intel-mid: Remove unused definitions from intel-mid.h 2023-03-22 11:08:40 -07:00
intel_ds.h
…
intel_pconfig.h
…
intel_pt.h
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intel_punit_ipc.h
…
intel_scu_ipc.h
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intel_telemetry.h platform/x86: intel_pmc_ipc: Convert to MFD 2020-04-24 11:18:44 +01:00
invpcid.h
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io.h x86/asm: Remove the __iomem annotation of movdir64b()'s dst argument 2024-02-22 14:52:09 -08:00
io_apic.h x86/platform/ce4100: Dont override x86_init.mpparse.setup_ioapic_ids 2024-02-15 22:07:39 +01:00
io_bitmap.h x86/ioperm: Fix io bitmap invalidation on Xen PV 2020-07-18 12:31:49 +02:00
iomap.h
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iommu.h iommu/amd: Don't rely on external callers to enable IOMMU SNP support 2024-01-29 17:19:28 +01:00
iosf_mbi.h arch/x86: Fix typos 2024-01-03 11:46:22 +01:00
irq.h x86: replace CONFIG_HAVE_KVM with IS_ENABLED(CONFIG_KVM) 2024-02-08 08:45:35 -05:00
irq_remapping.h x86/apic/msi: Remove arch_create_remap_msi_irq_domain() 2022-12-05 22:22:33 +01:00
irq_stack.h x86/percpu: Move irq_stack variables next to current_task 2022-10-17 16:41:05 +02:00
irq_vectors.h x86: irq: unconditionally define KVM interrupt vectors 2024-02-23 05:23:14 -05:00
irq_work.h arch: consolidate arch_irq_work_raise prototypes 2023-11-23 11:32:29 +01:00
irqdomain.h x86/apic: Remove X86_IRQ_ALLOC_CONTIGUOUS_VECTORS 2022-11-17 15:15:22 +01:00
irqflags.h objtool/idle: Validate __cpuidle code as noinstr 2023-01-13 11:48:15 +01:00
ist.h
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jailhouse_para.h
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jump_label.h work around gcc bugs with 'asm goto' with outputs 2024-02-09 15:57:48 -08:00
kasan.h x86/kasan: Map shadow for percpu pages on demand 2022-12-15 10:37:26 -08:00
kaslr.h
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kbdleds.h
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kdebug.h
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kexec-bzimage64.h
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kexec.h x86: Do not include <asm/bootparam.h> in several files 2024-01-30 15:17:24 +01:00
kfence.h kfence, x86: only define helpers if !MODULE 2021-07-30 17:09:01 +02:00
kgdb.h
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kmsan.h mm, kmsan: fix infinite recursion due to RCU critical section 2024-01-25 23:52:21 -08:00
kprobes.h kprobes: unify kprobes_exceptions_nofify() prototypes 2023-11-10 19:59:05 +09:00
kvm-x86-ops.h S390: 2024-03-15 13:03:13 -07:00
kvm-x86-pmu-ops.h KVM: x86/pmu: Move pmc_idx => pmc translation helper to common code 2024-02-01 09:35:47 -08:00
kvm_host.h KVM: x86: Snapshot if a vCPU's vendor model is AMD vs. Intel compatible 2024-04-11 12:58:56 -04:00
kvm_page_track.h KVM: x86/mmu: Handle KVM bookkeeping in page-track APIs, not callers 2023-08-31 14:08:19 -04:00
kvm_para.h
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kvm_types.h
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kvm_vcpu_regs.h
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kvmclock.h kvmclock: Unexport kvmclock clocksource 2024-02-07 17:05:21 +01:00
linkage.h x86/bugs: Rename CONFIG_RETHUNK => CONFIG_MITIGATION_RETHUNK 2024-01-10 10:52:29 +01:00
local.h locking/x86: Implement local_xchg() using CMPXCHG without the LOCK prefix 2024-03-01 12:54:25 +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 x86/rtc: Rename mach_set_rtc_mmss() to mach_set_cmos_time() 2022-08-14 11:24:29 +02:00
mce.h x86/MCE/AMD: Add new MA_LLC, USR_DP, and USR_CP bank types 2023-11-28 16:26:55 +01:00
mem_encrypt.h x86/sme: Move early SME kernel encryption handling into .head.text 2024-03-04 18:12:33 +01:00
memtype.h x86: Decouple PAT and MTRR handling 2022-11-10 13:12:45 +01:00
microcode.h x86/microcode/intel: Add a minimum required revision for late loading 2023-10-24 15:05:55 +02:00
misc.h
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mman.h x86: Remove the arch_calc_vm_prot_bits() macro from the UAPI 2023-09-06 23:50:46 +02:00
mmconfig.h
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mmu.h x86/mm: delete unused cpu argument to leave_mm() 2024-02-22 10:24:41 -08:00
mmu_context.h x86/shstk: Handle vfork clone failure correctly 2023-09-19 09:18:34 -07:00
mmzone.h
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mmzone_32.h
…
mmzone_64.h
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module.h
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mpspec.h x86/mpparse: Use new APIC registration function 2024-02-15 22:07:42 +01:00
mpspec_def.h
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mshyperv.h hyperv-tlfs: Change prefix of generic HV_REGISTER_* MSRs to HV_MSR_* 2024-03-04 06:59:18 +00:00
msi.h x86/apic/msi: Enable MSI_FLAG_PCI_MSIX_ALLOC_DYN 2022-12-05 22:22:34 +01:00
msr-index.h x86/bhi: Enumerate Branch History Injection (BHI) bug 2024-04-08 19:27:05 +02:00
msr-trace.h
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msr.h Misc cleanups, including a large series from Thomas Gleixner to 2024-03-11 19:37:56 -07:00
mtrr.h x86/mtrr: Remove unused code 2023-06-01 15:04:33 +02:00
mwait.h x86: Fix CPUIDLE_FLAG_IRQ_ENABLE leaking timer reprogram 2023-11-29 15:44:01 +01:00
nmi.h x86/nmi: Drop unused declaration of proc_nmi_enabled() 2024-03-06 10:13:33 +01:00
nops.h x86/alternatives: Add longer 64-bit NOPs 2023-05-31 10:21:21 +02:00
nospec-branch.h x86/bhi: Mitigate KVM by default 2024-04-08 19:27:06 +02:00
numa.h x86/mm: Drop the 4 MB restriction on minimal NUMA node memory size 2023-10-20 10:40:22 +02:00
numa_32.h
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olpc.h
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olpc_ofw.h
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orc_header.h x86/unwind/orc: Add ELF section with ORC version identifier 2023-06-16 17:17:42 +02:00
orc_lookup.h
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orc_types.h x86,objtool: Split UNWIND_HINT_EMPTY in two 2023-03-23 23:18:58 +01:00
page.h x86/mm: Ensure input to pfn_to_kaddr() is treated as a 64-bit type 2023-11-23 11:13:21 +01:00
page_32.h mm, arch: add generic implementation of pfn_valid() for FLATMEM 2023-02-09 16:51:41 -08:00
page_32_types.h
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page_64.h mm, arch: add generic implementation of pfn_valid() for FLATMEM 2023-02-09 16:51:41 -08:00
page_64_types.h docs: move x86 documentation into Documentation/arch/ 2023-03-30 12:58:51 -06:00
page_types.h arch: define CONFIG_PAGE_SIZE_*KB on all architectures 2024-03-06 19:29:09 +01:00
paravirt.h header cleanups for 6.8 2024-01-10 16:43:55 -08:00
paravirt_api_clock.h
…
paravirt_types.h header cleanups for 6.8 2024-01-10 16:43:55 -08:00
parport.h
…
pc-conf-reg.h
…
pci-direct.h
…
pci-functions.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pci.h x86/setup: Move internal setup_data structures into setup_data.h 2024-01-30 15:17:12 +01:00
pci_x86.h
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percpu.h Linux 6.8-rc4 2024-02-14 10:45:07 +01:00
perf_event.h perf/x86/intel: Expose existence of callback support to KVM 2024-04-11 12:58:47 -07:00
perf_event_p4.h x86/cpu/topology: Rename smp_num_siblings 2024-02-15 22:07:45 +01:00
pgalloc.h x86/bugs: Rename CONFIG_PAGE_TABLE_ISOLATION => CONFIG_MITIGATION_PAGE_TABLE_ISOLATION 2024-01-10 10:52:28 +01:00
pgtable-2level.h x86/mm: support __HAVE_ARCH_PTE_SWP_EXCLUSIVE also on 32bit 2023-02-02 22:33:10 -08:00
pgtable-2level_types.h
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pgtable-3level.h x86/bugs: Rename CONFIG_PAGE_TABLE_ISOLATION => CONFIG_MITIGATION_PAGE_TABLE_ISOLATION 2024-01-10 10:52:28 +01:00
pgtable-3level_types.h x86/mm/pae: Make pmd_t similar to pte_t 2022-12-15 10:37:27 -08:00
pgtable-invert.h
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pgtable.h - Sumanth Korikkar has taught s390 to allocate hotplug-time page frames 2024-03-14 17:43:30 -07:00
pgtable_32.h mm: remove kern_addr_valid() completely 2022-11-08 17:37:18 -08:00
pgtable_32_areas.h
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pgtable_32_types.h
…
pgtable_64.h x86/bugs: Rename CONFIG_PAGE_TABLE_ISOLATION => CONFIG_MITIGATION_PAGE_TABLE_ISOLATION 2024-01-10 10:52:28 +01:00
pgtable_64_types.h x86/startup_64: Defer assignment of 5-level paging global variables 2024-03-04 18:12:06 +01:00
pgtable_areas.h x86/mm: Randomize per-cpu entry area 2022-12-15 10:37:26 -08:00
pgtable_types.h x86/tdx: Preserve shared bit on mprotect() 2024-04-24 08:11:43 -07:00
pkeys.h
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pkru.h x86/pkey: Fix undefined behaviour with PKRU_WD_BIT 2021-12-19 22:44:34 +01:00
platform_sst_audio.h
…
pm-trace.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
posix_types.h
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preempt.h Linux 6.8-rc4 2024-02-14 10:45:07 +01:00
probe_roms.h
…
processor-cyrix.h
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processor-flags.h x86/bugs: Rename CONFIG_PAGE_TABLE_ISOLATION => CONFIG_MITIGATION_PAGE_TABLE_ISOLATION 2024-01-10 10:52:28 +01:00
processor.h x86/mm: Remove broken vsyscall emulation code from the page fault code 2024-05-01 09:41:43 +02:00
prom.h x86/dtb: Rename x86_dtb_init() 2024-02-15 22:07:40 +01:00
proto.h x86/entry: Convert INT 0x80 emulation to IDTENTRY 2023-12-07 09:51:29 -08:00
pti.h x86/bugs: Rename CONFIG_PAGE_TABLE_ISOLATION => CONFIG_MITIGATION_PAGE_TABLE_ISOLATION 2024-01-10 10:52:28 +01:00
ptrace.h x86/ptrace: Add FRED additional information to the pt_regs structure 2024-01-31 22:01:20 +01:00
purgatory.h
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pvclock-abi.h
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pvclock.h sched/clock/x86: Mark sched_clock() noinstr 2023-01-31 15:01:47 +01:00
qrwlock.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
qspinlock.h x86/paravirt: Silence unused native_pv_lock_init() function warning 2023-08-03 16:50:19 +02:00
qspinlock_paravirt.h x86/paravirt: Move some functions and defines to alternative.c 2023-12-10 20:30:31 +01:00
realmode.h x86/smpboot: Implement a bit spinlock to protect the realmode stack 2023-05-15 13:45:03 +02:00
reboot.h x86/reboot: Expose VMCS crash hooks if and only if KVM_{INTEL,AMD} is enabled 2023-08-03 15:37:14 -07:00
reboot_fixups.h
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required-features.h x86/cpufeatures: Add new word for scattered features 2024-03-25 11:16:54 +01:00
resctrl.h x86/resctrl: Add helpers for system wide mon/alloc capable 2024-02-16 19:18:33 +01:00
rmwcc.h work around gcc bugs with 'asm goto' with outputs 2024-02-09 15:57:48 -08:00
seccomp.h
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sections.h lockdep: fix static memory detection even more 2023-08-21 13:46:24 -07:00
segment.h x86/vdso: Choose the right GDT_ENTRY_CPUNODE for 32-bit getcpu() on 64-bit kernel 2023-08-08 09:31:43 +02:00
serial.h
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set_memory.h x86/mm: Regularize set_memory_p() parameters and make non-static 2024-03-01 08:31:41 +00:00
setup.h x86/boot/64: Simplify global variable accesses in GDT/IDT programming 2024-02-26 12:58:11 +01:00
setup_arch.h
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setup_data.h x86/setup: Move internal setup_data structures into setup_data.h 2024-01-30 15:17:12 +01:00
sev-common.h x86/sev: Put PSC struct on the stack in prep for unaccepted memory support 2023-06-06 18:28:25 +02:00
sev.h x86/sev: Add callback to apply RMP table fixups for kexec 2024-04-29 11:21:09 +02:00
sgx.h x86/sgx: Allow enclaves to use Asynchrounous Exit Notification 2022-11-04 15:33:30 -07:00
shmparam.h
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shstk.h x86/shstk: Add ARCH_SHSTK_STATUS 2023-08-02 15:01:51 -07:00
sigcontext.h
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sigframe.h x86/init: Initialize signal frame size late 2023-06-16 10:16:00 +02:00
sighandling.h x86/signal: Add ABI prefixes to frame setup functions 2022-10-19 09:58:49 +02:00
signal.h x86/signal: Remove sigset_t parameter from frame setup functions 2022-10-19 09:58:48 +02:00
simd.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
smap.h x86/cpu: Remove CONFIG_X86_SMAP and "nosmap" 2022-04-04 10:16:57 +02:00
smp.h Misc cleanups, including a large series from Thomas Gleixner to 2024-03-11 19:37:56 -07:00
softirq_stack.h x86/softirq/64: Inline do_softirq_own_stack() 2021-02-10 23:34:17 +01:00
sparsemem.h x86/numa: Introduce numa_fill_memblks() 2023-09-12 16:13:05 -07:00
spec-ctrl.h x86/cpu: Provide a declaration for itlb_multihit_kvm_mitigation 2024-03-04 12:09:13 +01:00
special_insns.h * Fix sparse warning from TDX use of movdir64b() 2024-03-11 20:20:36 -07:00
spinlock.h
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spinlock_types.h
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sta2x11.h
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stackprotector.h stackprotector: actually use get_random_canary() 2022-11-18 02:18:10 +01:00
stacktrace.h
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static_call.h x86/bugs: Rename CONFIG_RETHUNK => CONFIG_MITIGATION_RETHUNK 2024-01-10 10:52:29 +01:00
string.h
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string_32.h
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string_64.h x86: kmsan: use C versions of memset16/memset32/memset64 2023-03-28 16:20:11 -07:00
suspend.h
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suspend_32.h x86/pm: Work around false positive kmemleak report in msr_build_context() 2024-03-22 11:01:31 +01:00
suspend_64.h
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svm.h KVM: SVM: Rename vmplX_ssp -> plX_ssp 2024-02-27 12:22:43 -08:00
switch_to.h x86/fred: Update MSR_IA32_FRED_RSP0 during task switch 2024-01-31 22:01:36 +01:00
sync_bitops.h
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sync_core.h
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syscall.h x86/bhi: Add support for clearing branch history at syscall entry 2024-04-08 19:27:05 +02:00
syscall_wrapper.h x86/entry/ia32: Ensure s32 is sign extended to s64 2024-01-24 11:49:19 +01:00
syscalls.h
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tdx.h x86/mce: Differentiate real hardware #MCs from TDX erratum ones 2023-12-12 08:46:46 -08:00
text-patching.h Linux 6.8-rc4 2024-02-14 10:45:07 +01:00
thermal.h x86/thermal: Fix LVT thermal setup for SMI delivery mode 2021-05-31 22:32:26 +02:00
thread_info.h x86/fred: Reserve space for the FRED stack frame 2024-01-31 22:01:31 +01:00
time.h init: consolidate prototypes in linux/init.h 2023-06-09 17:44:16 -07:00
timer.h
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timex.h
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tlb.h mmu_gather: Remove per arch tlb_{start,end}_vma() 2022-07-21 10:50:13 -07:00
tlbbatch.h
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tlbflush.h Add x86 shadow stack support 2023-08-31 12:20:12 -07:00
topology.h - Add a FRU (Field Replaceable Unit) memory poison manager which 2024-03-11 18:14:06 -07:00
trace_clock.h
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trap_pf.h x86/traps: Define RMP violation #PF error code 2024-01-29 17:26:56 +01:00
trapnr.h x86/trapnr: Add event type macros to <asm/trapnr.h> 2024-01-25 19:10:29 +01:00
traps.h arch: include linux/cpu.h for trap_init() prototype 2023-11-23 11:32:31 +01:00
tsc.h x86/msr: Add missing __percpu annotations 2024-03-04 12:01:54 +01:00
uaccess.h work around gcc bugs with 'asm goto' with outputs 2024-02-09 15:57:48 -08:00
uaccess_32.h x86: uaccess: move 32-bit and 64-bit parts into proper <asm/uaccess_N.h> header 2023-05-03 10:37:22 -07:00
uaccess_64.h Core x86 changes for v6.9: 2024-03-11 19:53:15 -07:00
umip.h
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unaccepted_memory.h x86/sev: Add SNP-specific unaccepted memory support 2023-06-06 18:31:37 +02:00
unistd.h fs: stat: compat: Add __ARCH_WANT_COMPAT_STAT 2022-04-26 13:35:45 -07:00
unwind.h
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unwind_hints.h drm/vmwgfx: Add unwind hints around RBP clobber 2023-06-07 10:03:12 -07:00
uprobes.h
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user.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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vdso.h x86/vdso: Move VDSO image init to vdso2c generated code 2023-01-25 12:33:40 +01:00
vermagic.h
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vga.h
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vgtod.h
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vm86.h
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vmalloc.h
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vmware.h
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vmx.h x86/trapnr: Add event type macros to <asm/trapnr.h> 2024-01-25 19:10:29 +01:00
vmxfeatures.h x86/cpu: Add a VMX flag to enumerate 5-level EPT support to userspace 2024-02-22 16:03:56 -08:00
vsyscall.h x86/mm: Move is_vsyscall_vaddr() into asm/vsyscall.h 2024-02-15 19:21:39 -08:00
vvar.h
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word-at-a-time.h kernel.h: removed REPEAT_BYTE from kernel.h 2024-02-01 09:47:59 -08:00
x86_init.h x86/sev: Skip ROM range scans and validation for SEV-SNP guests 2024-03-26 15:22:35 +01:00
xor.h
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xor_32.h
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xor_64.h
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xor_avx.h
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