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linux/arch/x86/include/asm
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Rasmus Villemoes 9c5743dff4 x86/uaccess: fix code generation in put_user() 
Quoting https://gcc.gnu.org/onlinedocs/gcc/Local-Register-Variables.html:

  You can define a local register variable and associate it with a
  specified register...

  The only supported use for this feature is to specify registers for
  input and output operands when calling Extended asm (see Extended
  Asm). This may be necessary if the constraints for a particular
  machine don't provide sufficient control to select the desired
  register.

On 32-bit x86, this is used to ensure that gcc will put an 8-byte value
into the %edx:%eax pair, while all other cases will just use the single
register %eax (%rax on x86-64).  While the _ASM_AX actually just expands
to "%eax", note this comment next to get_user() which does something
very similar:

 * The use of _ASM_DX as the register specifier is a bit of a
 * simplification, as gcc only cares about it as the starting point
 * and not size: for a 64-bit value it will use %ecx:%edx on 32 bits
 * (%ecx being the next register in gcc's x86 register sequence), and
 * %rdx on 64 bits.

However, getting this to work requires that there is no code between the
assignment to the local register variable and its use as an input to the
asm() which can possibly clobber any of the registers involved -
including evaluation of the expressions making up other inputs.

In the current code, the ptr expression used directly as an input may
cause such code to be emitted.  For example, Sean Christopherson
observed that with KASAN enabled and ptr being current->set_child_tid
(from chedule_tail()), the load of current->set_child_tid causes a call
to __asan_load8() to be emitted immediately prior to the __put_user_4
call, and Naresh Kamboju reports that various mmstress tests fail on
KASAN-enabled builds.

It's also possible to synthesize a broken case without KASAN if one uses
"foo()" as the ptr argument, with foo being some "extern u64 __user
*foo(void);" (though I don't know if that appears in real code).

Fix it by making sure ptr gets evaluated before the assignment to
__val_pu, and add a comment that __val_pu must be the last thing
computed before the asm() is entered.

Cc: Sean Christopherson <sean.j.christopherson@intel.com>
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Tested-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Fixes: d55564cfc2 ("x86: Make __put_user() generate an out-of-line call")
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2020-10-23 13:44:24 -07:00
..
crypto crypto: remove CRYPTO_TFM_RES_BAD_KEY_LEN 2020-01-09 11:30:53 +08:00
e820 x86/efi: EFI soft reservation to E820 enumeration 2019-11-07 15:44:14 +01:00
fpu This feature enhances the current guest memory encryption support 2020-10-14 10:21:34 -07:00
numachip
…
trace x86/entry: Convert reschedule interrupt to IDTENTRY_SYSVEC_SIMPLE 2020-06-11 15:15:16 +02:00
uv x86/platform/uv: Update Copyrights to conform to HPE standards 2020-10-07 09:10:07 +02:00
vdso vdso/treewide: Add vdso_data pointer argument to __arch_get_hw_counter() 2020-08-06 10:57:30 +02:00
xen xen: hypercall.h: fix duplicated word 2020-08-03 07:48:39 +02:00
GEN-for-each-reg.h x86: Simplify retpoline declaration 2020-04-30 20:14:34 +02:00
Kbuild asm-generic: make more kernel-space headers mandatory 2020-04-02 09:35:25 -07:00
acenv.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
acpi.h ACPI: processor: Use CPUIDLE_FLAG_TLB_FLUSHED 2020-09-16 19:36:25 +02:00
agp.h mm: introduce include/linux/pgtable.h 2020-06-09 09:39:13 -07:00
alternative-asm.h x86/nospec, objtool: Introduce ANNOTATE_IGNORE_ALTERNATIVE 2019-04-03 09:39:46 +02:00
alternative.h x86: alternative.h: use asm_inline for all alternative variants 2019-09-15 20:14:15 +02:00
amd_nb.h x86/mce/amd: Cleanup threshold device remove path 2020-04-14 15:49:51 +02:00
apb_timer.h x86/apb_timer: Drop unused declaration and macro 2020-05-27 13:12:49 +02:00
apic.h x86/msi: Move compose message callback where it belongs 2020-09-16 16:52:28 +02:00
apicdef.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +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 x86/kconfig: Disable CONFIG_GENERIC_HWEIGHT and remove __HAVE_ARCH_SW_HWEIGHT 2019-05-13 11:07:33 +02:00
archrandom.h x86/cpu: Use RDRAND and RDSEED mnemonics in archrandom.h 2020-05-18 19:50:47 +02:00
asm-offsets.h
…
asm-prototypes.h x86/mce: Allow for copy_mc_fragile symbol checksum to be generated 2020-10-08 10:39:21 +02:00
asm.h Orphan link sections were a long-standing source of obscure bugs, 2020-10-12 13:39:19 -07:00
atomic.h locking/atomic: Move ATOMIC_INIT into linux/types.h 2020-07-29 16:14:18 +02:00
atomic64_32.h locking/atomics: Flip fallbacks and instrumentation 2020-06-11 08:03:24 +02:00
atomic64_64.h locking/atomics: Flip fallbacks and instrumentation 2020-06-11 08:03:24 +02:00
audit.h x86/audit: Fix a -Wmissing-prototypes warning for ia32_classify_syscall() 2020-05-19 18:03:07 +02:00
barrier.h x86: Remove X86_FEATURE_MFENCE_RDTSC 2019-07-22 12:00:51 +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 x86, kcsan: Remove __no_kcsan_or_inline usage 2020-06-15 14:10:08 +02:00
boot.h x86: Add support for ZSTD compressed kernel 2020-07-31 11:49:09 +02:00
bootparam_utils.h x86/boot: Preserve boot_params.secure_boot from sanitizing 2019-09-02 09:17:45 +02:00
bug.h compiler.h: Move instrumentation_begin()/end() to new <linux/instrumentation.h> header 2020-07-24 13:56:23 +02:00
bugs.h x86/mpx: remove MPX from arch/x86 2020-01-23 10:41:20 -08:00
cache.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cacheflush.h asm-generic: don't include <linux/mm.h> in cacheflush.h 2020-06-08 11:05:57 -07:00
cacheinfo.h x86/cpu: Get cache info and setup cache cpumap for Hygon Dhyana 2018-09-27 18:28:57 +02:00
ce4100.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
checksum.h unify generic instances of csum_partial_copy_nocheck() 2020-08-20 15:45:14 -04:00
checksum_32.h i386: propagate the calling conventions change down to csum_partial_copy_generic() 2020-08-20 15:45:18 -04:00
checksum_64.h amd64: switch csum_partial_copy_generic() to new calling conventions 2020-08-20 15:45:22 -04:00
clocksource.h x86: Introduce asm/vdso/clocksource.h 2020-03-21 15:23:54 +01:00
cmdline.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cmpxchg.h x86: Fix various typos in comments 2018-12-03 10:49:13 +01:00
cmpxchg_32.h x86: cmpxchg_32.h: Delete duplicated word 2020-07-26 12:47:22 +02:00
cmpxchg_64.h locking/atomics/x86: Reduce arch_cmpxchg64*() instrumentation 2018-07-25 11:53:58 +02:00
compat.h compat: add a compat_need_64bit_alignment_fixup() helper 2020-09-17 13:00:46 -04:00
copy_mc_test.h x86, powerpc: Rename memcpy_mcsafe() to copy_mc_to_{user, kernel}() 2020-10-06 11:18:04 +02:00
cpu.h x86/cpu: Reinitialize IA32_FEAT_CTL MSR on BSP during wakeup 2020-06-15 14:18:37 +02:00
cpu_device_id.h x86/cpu: Add a X86_MATCH_INTEL_FAM6_MODEL_STEPPINGS() macro 2020-05-07 13:48:05 +02:00
cpu_entry_area.h x86/sev-es: Allocate and map an IST stack for #VC handler 2020-09-09 11:33:19 +02:00
cpufeature.h x86/cpufeature: Explain the macro duplication 2019-08-28 08:38:39 +02:00
cpufeatures.h This feature enhances the current guest memory encryption support 2020-10-14 10:21:34 -07:00
cpuidle_haltpoll.h cpuidle-haltpoll: vcpu hotplug support 2019-09-03 09:36:36 +02:00
cpumask.h x86/entry, cpumask: Provide non-instrumented variant of cpu_is_offline() 2020-06-15 14:10:09 +02:00
crash.h Merge branch 'x86-kdump-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-11-26 09:48:19 -08:00
current.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
debugreg.h x86/debug: Remove aout_dump_debugregs() 2020-09-04 15:12:55 +02:00
delay.h x86/delay: Introduce TPAUSE delay 2020-05-07 16:06:20 +02:00
desc.h x86/idt: Make IDT init functions static inlines 2020-09-07 22:44:43 +02:00
desc_defs.h x86/idt: Make IDT init functions static inlines 2020-09-07 22:44:43 +02:00
device.h x86: Remove dev->archdata.iommu pointer 2020-06-30 11:59:48 +02:00
disabled-features.h x86/cpufeatures: Mark ENQCMD as disabled when configured out 2020-09-17 20:22:15 +02:00
div64.h sched/cputime: Improve cputime_adjust() 2020-06-15 14:10:00 +02:00
dma-mapping.h dma-mapping: move dma-debug.h to kernel/dma/ 2020-10-06 07:07:05 +02:00
dma.h x86/dma: Fix max PFN arithmetic overflow on 32 bit systems 2020-05-28 20:21:32 +02:00
dmi.h x86: Don't include linux/irq.h from asm/hardirq.h 2018-08-05 09:53:13 +02:00
doublefault.h x86/32: Remove CONFIG_DOUBLEFAULT 2020-04-14 14:24:05 +02:00
dwarf2.h x86: remove always-defined CONFIG_AS_CFI_SECTIONS 2020-04-09 00:01:59 +09:00
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 efi/x86: Move 32-bit code into efi_32.c 2020-08-20 11:18:36 +02:00
elf.h kill elf_fpxregs_t 2020-07-27 14:29:23 -04:00
emergency-restart.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
emulate_prefix.h x86: xen: kvm: Gather the definition of emulate prefixes 2019-10-17 21:31:57 +02:00
entry-common.h x86/entry: Fix AC assertion 2020-09-04 15:09:29 +02:00
espfix.h init: Invoke init_espfix_bsp() from mm_init() 2017-12-22 20:13:05 +01:00
exec.h
…
extable.h x86/mce: Provide method to find out the type of an exception handler 2020-10-07 11:08:59 +02:00
fb.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fixmap.h x86/paravirt: Use CONFIG_PARAVIRT_XXL instead of CONFIG_PARAVIRT 2020-08-15 13:52:11 +02:00
floppy.h floppy: use symbolic register names in the x86 port 2020-05-12 19:34:53 +03:00
frame.h x86/unwind/fp: Fix FP unwinding in ret_from_fork 2020-09-18 09:59:40 +02:00
fsgsbase.h x86/fsgsbase: Replace static_cpu_has() with boot_cpu_has() 2020-08-24 18:18:32 +02:00
ftrace.h Various tracing fixes: 2020-05-14 11:46:52 -07:00
futex.h x86: get rid of user_atomic_cmpxchg_inatomic() 2020-03-27 23:58:55 -04:00
gart.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
genapic.h
…
geode.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206 2019-05-30 11:29:53 -07:00
hardirq.h x86/kvm/vmx: Move guest enter/exit into .noinstr.text 2020-07-09 07:08:40 -04:00
highmem.h arch/kmap: define kmap_atomic_prot() for all arch's 2020-06-04 19:06:22 -07:00
hpet.h x86/hpet: Move clockevents into channels 2019-06-28 00:57:24 +02:00
hugetlb.h mm/hugetlb: define a generic fallback for arch_clear_hugepage_flags() 2020-06-03 20:09:46 -07:00
hw_breakpoint.h perf/hw_breakpoint: Remove default hw_breakpoint_arch_parse() 2018-06-26 09:07:58 +02:00
hw_irq.h x86/msi: Consolidate MSI allocation 2020-09-16 16:52:35 +02:00
hyperv-tlfs.h x86/hyperv: Remove aliases with X64 in their name 2020-09-28 09:01:07 +00:00
hypervisor.h x86/paravirt: Remove const mark from x86_hyper_xen_hvm variable 2019-07-17 08:09:59 +02:00
i8259.h x86: i8259: Add missing include file 2018-08-15 13:44:10 -07:00
ia32.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +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
idtentry.h This feature enhances the current guest memory encryption support 2020-10-14 10:21:34 -07:00
imr.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
inat.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
inat_types.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
init.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
insn-eval.h x86/insn: Add insn_has_rep_prefix() helper 2020-09-07 19:45:25 +02:00
insn.h x86: xen: insn: Decode Xen and KVM emulate-prefix signature 2019-10-17 21:31:57 +02:00
inst.h Support for FSGSBASE. Almost 5 years after the first RFC to support it, 2020-08-04 21:16:22 -07:00
intel-family.h x86/cpu: Add Lakefield, Alder Lake and Rocket Lake models to the to Intel CPU family 2020-07-25 12:16:59 +02:00
intel-mid.h x86/platform/intel-mid: Add empty stubs for intel_scu_devices_[create|destroy]() 2020-04-24 11:18:21 +01:00
intel_ds.h perf/x86/intel: Add Icelake support 2019-04-16 12:26:18 +02:00
intel_mid_vrtc.h x86: Convert x86_platform_ops to timespec64 2018-05-19 14:03:14 +02:00
intel_pconfig.h x86/pconfig: Provide defines and helper to run MKTME_KEY_PROG leaf 2018-03-12 12:10:54 +01:00
intel_pt.h perf/x86/intel: Support PEBS output to PT 2019-08-28 11:29:39 +02:00
intel_punit_ipc.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
intel_scu_ipc.h platform/x86: intel_scu_ipc: Add managed function to register SCU IPC 2020-04-24 11:17:44 +01:00
intel_scu_ipc_legacy.h platform/x86: intel_scu_ipc: Introduce new SCU IPC API 2020-04-24 11:17:28 +01:00
intel_telemetry.h platform/x86: intel_pmc_ipc: Convert to MFD 2020-04-24 11:18:44 +01:00
invpcid.h x86/cpu: Use INVPCID mnemonic in invpcid.h 2020-05-12 16:05:30 +02:00
io.h x86/asm: Carve out a generic movdir64b() helper for general usage 2020-10-07 17:49:25 +02:00
io_apic.h x86/ioapic: Remove unused "IOAPIC_AUTO" define 2020-07-25 12:00:56 +02:00
io_bitmap.h x86/ioperm: Fix io bitmap invalidation on Xen PV 2020-07-18 12:31:49 +02:00
iomap.h mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
iommu.h iommu/vt-d: Check VT-d RMRR region in BIOS is reported as reserved 2019-11-11 16:06:07 +01:00
iommu_table.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
iosf_mbi.h media: atomisp: move CCK endpoint address to generic header 2020-07-18 07:17:16 +02:00
irq.h x86/entry: Unbreak __irqentry_text_start/end magic 2020-06-11 15:15:29 +02:00
irq_remapping.h iommu/irq_remapping: Consolidate irq domain lookup 2020-09-16 16:52:30 +02:00
irq_stack.h x86/irq: Make run_on_irqstack_cond() typesafe 2020-09-22 22:13:34 +02:00
irq_vectors.h x86/irq: Fix outdated comments 2019-04-22 11:42:59 +02:00
irq_work.h x86/entry: Convert various system vectors 2020-06-11 15:15:14 +02:00
irqdomain.h x86/pci: Set default irq domain in pcibios_add_device() 2020-09-16 16:52:37 +02:00
irqflags.h x86/entry: __always_inline irqflags for noinstr 2020-06-11 15:15:27 +02:00
ist.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 118 2019-05-24 17:39:02 +02:00
jailhouse_para.h x86/jailhouse: Fix incorrect SPDX identifier 2018-04-23 10:17:28 +02:00
jump_label.h x86/jump_label: Batch jump label updates 2019-06-17 12:09:23 +02:00
kasan.h kasan: clean up KASAN_SHADOW_SCALE_SHIFT usage 2018-02-06 18:32:43 -08:00
kaslr.h x86/mm: simplify init_trampoline() and surrounding logic 2020-06-09 09:39:13 -07:00
kbdleds.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
kdebug.h x86/dumpstack: Add log_lvl to __show_regs() 2020-07-22 23:56:53 +02:00
kexec-bzimage64.h kexec_file,x86,powerpc: factor out kexec_file_ops functions 2018-04-13 17:10:27 -07:00
kexec.h x86/kdump: Remove the backup region handling 2019-11-14 18:24:43 +01:00
kgdb.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
kmap_types.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
kprobes.h x86/debug: Move kprobe_debug_handler() into exc_debug_kernel() 2020-09-04 15:12:52 +02:00
kvm_host.h kvm: x86/mmu: Allocate struct kvm_mmu_pages for all pages in TDP MMU 2020-10-23 03:42:11 -04:00
kvm_page_track.h KVM: Simplify kvm_free_memslot() and all its descendents 2020-03-16 17:57:22 +01:00
kvm_para.h KVM: x86: Use VMCALL and VMMCALL mnemonics in kvm_para.h 2020-07-08 16:21:49 -04:00
kvm_types.h KVM: Move x86's version of struct kvm_mmu_memory_cache to common code 2020-07-09 13:29:42 -04:00
kvm_vcpu_regs.h KVM: x86: Explicitly #define the VCPU_REGS_* indices 2019-02-20 22:47:38 +01:00
kvmclock.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
linkage.h x86/asm: Remove the last GLOBAL user and remove the macro 2019-10-18 11:29:50 +02:00
livepatch.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
local.h x86/asm: 'Simplify' GEN_*_RMWcc() macros 2018-10-16 17:33:54 +02:00
local64.h
…
mach_timer.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mach_traps.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
math_emu.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mc146818rtc.h x86: Convert x86_platform_ops to timespec64 2018-05-19 14:03:14 +02:00
mce.h x86/mce: Add _ASM_EXTABLE_CPY for copy user access 2020-10-07 11:19:11 +02:00
mem_encrypt.h x86/sev-es: Setup per-CPU GHCBs for the runtime handler 2020-09-09 11:33:19 +02:00
memtype.h x86/mm: Move pgprot2cachemode out of line 2020-04-20 12:39:17 +02:00
microcode.h Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-04-02 15:16:43 -07:00
microcode_amd.h x86/microcode/AMD: Increase microcode PATCH_MAX_SIZE 2020-04-14 17:34:46 +02:00
microcode_intel.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
misc.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mmconfig.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mmu.h cpuidle: Make CPUIDLE_FLAG_TLB_FLUSHED generic 2020-08-26 12:41:53 +02:00
mmu_context.h mm: remove unneeded includes of <asm/pgalloc.h> 2020-08-07 11:33:26 -07:00
mmx.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mmzone.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mmzone_32.h x86/mm: Drop deprecated DISCONTIGMEM support for 32-bit 2020-05-28 18:34:30 +02:00
mmzone_64.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
module.h arch: split MODULE_ARCH_VERMAGIC definitions out to <asm/vermagic.h> 2020-04-23 10:50:26 +09:00
mpspec.h x86/init: Remove unused init ops 2020-09-16 16:52:28 +02:00
mpspec_def.h x86: Introduce and use MP IRQ trigger and polarity defines 2018-01-14 21:11:54 +01:00
mshyperv.h Drivers: hv: vmbus: Add parsing of VMbus interrupt in ACPI DSDT 2020-10-14 19:14:51 +00:00
msi.h x86/msi: Use generic MSI domain ops 2020-09-16 16:52:35 +02:00
msidef.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
msr-index.h This feature enhances the current guest memory encryption support 2020-10-14 10:21:34 -07:00
msr-trace.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
msr.h x86: Use tracepoint_enabled() for msr tracepoints instead of open coding it 2020-09-28 10:36:02 -04:00
mtrr.h x86/mm/pat: Rename <asm/pat.h> => <asm/memtype.h> 2019-12-10 10:12:55 +01:00
mwait.h KVM: VMX: Stop context switching MSR_IA32_UMWAIT_CONTROL 2020-06-22 20:54:57 -04:00
nmi.h x86/nmi: Remove irq_work from the long duration NMI handler 2020-01-11 15:55:39 +01:00
nops.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nospec-branch.h networking changes for the 5.10 merge window 2020-10-15 18:42:13 -07:00
numa.h ACPI updates for 5.10-rc1 2020-10-14 11:42:04 -07:00
numa_32.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
olpc.h Platform: OLPC: Move EC-specific functionality out from x86 2019-05-20 17:27:08 +03:00
olpc_ofw.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
orc_lookup.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
orc_types.h objtool: Make unwind hint definitions available to other architectures 2020-09-10 10:43:13 -05:00
page.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
page_32.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
page_32_types.h x86: make TASK_SIZE_MAX usable from assembly code 2020-09-08 22:21:35 -04:00
page_64.h Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-04-02 15:45:30 -07:00
page_64_types.h Merge branch 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-10-22 09:59:21 -07:00
page_types.h x86/mm: thread pgprot_t through init_memory_mapping() 2020-04-10 15:36:21 -07:00
paravirt.h x86/paravirt: Avoid needless paravirt step clearing page table entries 2020-08-15 13:52:12 +02:00
paravirt_types.h x86/paravirt: Remove set_pte_at() pv-op 2020-08-15 13:52:12 +02:00
parport.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pci-direct.h PCI: Make early dump functionality generic 2018-06-29 20:06:07 -05:00
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/irq: Cleanup the arch_*_msi_irqs() leftovers 2020-09-16 16:52:38 +02:00
pci_x86.h x86/pci: Reducde #ifdeffery in PCI init code 2020-09-16 16:52:35 +02:00
percpu.h x86/percpu: Remove unused PER_CPU() macro 2020-07-23 11:46:43 +02:00
perf_event.h perf/x86/amd/ibs: Support 27-bit extended Op/cycle counter 2020-09-10 11:19:36 +02:00
perf_event_p4.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pgalloc.h asm-generic: pgalloc: provide generic pgd_free() 2020-08-07 11:33:26 -07:00
pgtable-2level.h Revert "x86/mm/legacy: Populate the user page-table with user pgd's" 2018-09-14 17:08:45 +02:00
pgtable-2level_types.h x86/mm/32: implement arch_sync_kernel_mappings() 2020-06-02 10:59:11 -07:00
pgtable-3level.h mmap locking API: convert mmap_sem comments 2020-06-09 09:39:14 -07:00
pgtable-3level_types.h x86/paravirt: Remove 32-bit support from CONFIG_PARAVIRT_XXL 2020-08-15 13:52:11 +02:00
pgtable-invert.h x86/speculation/l1tf: Exempt zeroed PTEs from inversion 2018-08-17 10:27:36 -07:00
pgtable.h This feature enhances the current guest memory encryption support 2020-10-14 10:21:34 -07:00
pgtable_32.h Merge branch 'uaccess.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-06-10 16:02:54 -07:00
pgtable_32_areas.h mm, x86/mm: Untangle address space layout definitions from basic pgtable type definitions 2019-12-10 10:12:55 +01:00
pgtable_32_types.h mm, x86/mm: Untangle address space layout definitions from basic pgtable type definitions 2019-12-10 10:12:55 +01:00
pgtable_64.h The biggest change is to not sync the vmalloc and ioremap ranges for x86-64 anymore. 2020-08-03 17:25:42 -07:00
pgtable_64_types.h x86/mm/64: Do not sync vmalloc/ioremap mappings 2020-08-15 13:56:16 +02:00
pgtable_areas.h mm, x86/mm: Untangle address space layout definitions from basic pgtable type definitions 2019-12-10 10:12:55 +01:00
pgtable_types.h x86/hyperv: allocate the hypercall page with only read and execute bits 2020-06-26 00:27:38 -07:00
pkeys.h x86/pkeys: Add check for pkey "overflow" 2020-02-24 20:25:21 +01:00
platform_sst_audio.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
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 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
preempt.h x86/entry: Rename ___preempt_schedule 2020-03-21 16:03:53 +01:00
probe_roms.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
processor-cyrix.h x86/cpu/cyrix: Remove {get,set}Cx86_old macros used for Cyrix processors 2019-03-21 12:28:50 +01:00
processor-flags.h x86/mm/pti: Define X86_CR3_PTI_PCID_USER_BIT on x86_32 2018-07-20 01:11:44 +02:00
processor.h Merge branch 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-10-22 09:59:21 -07:00
prom.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
proto.h x86/entry/64: Add entry code for #VC handler 2020-09-09 11:33:19 +02:00
pti.h x86: Use the correct SPDX License Identifier in headers 2019-10-01 20:31:35 +02:00
ptrace.h tracing/kprobes, x86/ptrace: Fix regs argument order for i386 2020-09-04 14:40:42 +02:00
purgatory.h x86/kdump: Remove the backup region handling 2019-11-14 18:24:43 +01:00
pvclock-abi.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pvclock.h x86/vdso: Switch to generic vDSO implementation 2019-06-22 21:21:10 +02:00
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/kvm: Add "nopvspin" parameter to disable PV spinlocks 2020-07-08 16:21:57 -04:00
qspinlock_paravirt.h locking/pvqspinlock/x86: Use LOCK_PREFIX in __pv_queued_spin_unlock() assembly code 2018-07-25 11:22:20 +02:00
realmode.h x86/head/64: Don't call verify_cpu() on starting APs 2020-09-09 11:33:20 +02:00
reboot.h x86/headers: Fix -Wmissing-prototypes warning 2018-11-23 07:59:59 +01:00
reboot_fixups.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
required-features.h x86/paravirt: Use CONFIG_PARAVIRT_XXL instead of CONFIG_PARAVIRT 2020-08-15 13:52:11 +02:00
resctrl.h x86/cpu: Move resctrl CPUID code to resctrl/ 2020-05-06 17:51:21 +02:00
rmwcc.h jump_label: move 'asm goto' support test to Kconfig 2019-01-06 09:46:51 +09:00
seccomp.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sections.h x86/setup: Fix static memory detection 2020-03-19 11:58:13 +01:00
segment.h This feature enhances the current guest memory encryption support 2020-10-14 10:21:34 -07:00
serial.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
set_memory.h x86/{mce,mm}: Unmap the entire page if the whole page is affected and poisoned 2020-06-11 15:19:17 +02:00
setup.h x86/head/64: Move early exception dispatch to C code 2020-09-07 22:49:18 +02:00
setup_arch.h
…
sev-es.h x86/efi: Add GHCB mappings when SEV-ES is active 2020-09-10 21:48:50 +02:00
shmparam.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sigcontext.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sigframe.h x86: switch sigframe sigset handling to explict __get_user()/__put_user() 2020-03-18 15:29:54 -04:00
sighandling.h Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2020-03-31 11:04:05 -07:00
signal.h x86/entry: Use generic syscall exit functionality 2020-07-24 15:04:59 +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,smap: Fix smap_{save,restore}() alternatives 2020-04-30 20:14:31 +02:00
smp.h x86/headers: Remove APIC headers from <asm/smp.h> 2020-08-06 16:13:09 +02:00
sparsemem.h x86/mm: Drop unused MAX_PHYSADDR_BITS 2020-07-24 09:53:06 +02:00
spec-ctrl.h x86/speculation: Prevent stale SPEC_CTRL msr content 2018-11-28 11:57:12 +01:00
special_insns.h * Use XORL instead of XORQ to avoid a REX prefix and save some bytes in 2020-10-13 13:36:07 -07:00
spinlock.h Merge branch 'linus' into locking/core, to resolve conflicts 2017-11-07 10:32:44 +01:00
spinlock_types.h x86/spinlock: Remove obsolete ticket spinlock macros and types 2020-05-28 21:18:40 +02:00
sta2x11.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
stackprotector.h x86/stackprotector: Pre-initialize canary for secondary CPUs 2020-06-18 13:09:17 +02:00
stacktrace.h x86/dumpstack/64: Add noinstr version of get_stack_info() 2020-09-09 11:33:19 +02:00
static_call.h static_call: Add static_call_cond() 2020-09-01 09:58:05 +02:00
string.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
string_32.h x86/asm: Remove unused __constant_c_x_memset() macro and inlines 2019-01-12 17:54:49 +01:00
string_64.h x86, powerpc: Rename memcpy_mcsafe() to copy_mc_to_{user, kernel}() 2020-10-06 11:18:04 +02:00
suspend.h x86, hibernate: Rename temp_level4_pgt to temp_pgt 2018-10-03 11:56:34 +02:00
suspend_32.h x86-32/asm/power: Create stack frames in hibernate_asm_32.S 2018-10-03 11:56:33 +02:00
suspend_64.h x86/paravirt: Drop {read,write}_cr8() hooks 2019-07-22 10:12:33 +02:00
svm.h KVM: SVM: Add new intercept word in vmcb_control_area 2020-09-28 07:57:15 -04:00
swiotlb.h x86/dma: Use generic swiotlb_ops 2018-03-20 10:01:57 +01:00
switch_to.h x86/mm: remove vmalloc faulting 2020-06-02 10:59:12 -07:00
sync_bitops.h x86/asm: Modernize sync_bitops.h 2019-04-10 09:53:31 +02:00
sync_core.h x86/cpu: Fix typos and improve the comments in sync_core() 2020-08-19 09:56:36 +02:00
syscall.h Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2020-03-31 11:04:05 -07:00
syscall_wrapper.h x86/entry: Fix build error x86 with !CONFIG_POSIX_TIMERS 2020-03-25 10:06:20 +01:00
syscalls.h x86: Remove unneeded includes 2020-03-21 16:03:25 +01:00
sysfb.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
text-patching.h x86/alternatives: Teach text_poke_bp() to emulate RET 2020-09-01 09:58:05 +02:00
thread_info.h x86: remove address space overrides using set_fs() 2020-09-08 22:21:36 -04:00
time.h x86/timer: Skip PIT initialization on modern chipsets 2019-06-29 11:35:35 +02:00
timer.h Merge branch 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 19:07:38 -08:00
timex.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
tlb.h asm-generic/tlb: rename HAVE_RCU_TABLE_FREE 2020-02-04 03:05:26 +00:00
tlbbatch.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
tlbflush.h x86/tlb: Restrict access to tlbstate 2020-04-26 18:52:33 +02:00
topology.h x86, sched: check for counters overflow in frequency invariant accounting 2020-06-15 14:10:02 +02:00
trace_clock.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
trap_pf.h x86/traps: Move pf error codes to <asm/trap_pf.h> 2020-09-07 19:45:24 +02:00
trapnr.h x86/boot/compressed/64: Add stage1 #VC handler 2020-09-07 19:45:25 +02:00
traps.h This feature enhances the current guest memory encryption support 2020-10-14 10:21:34 -07:00
tsc.h A set of locking fixes and updates: 2020-08-10 19:07:44 -07:00
uaccess.h x86/uaccess: fix code generation in put_user() 2020-10-23 13:44:24 -07:00
uaccess_32.h x86: get rid of small constant size cases in raw_copy_{to,from}_user() 2020-03-18 15:53:25 -04:00
uaccess_64.h x86, powerpc: Rename memcpy_mcsafe() to copy_mc_to_{user, kernel}() 2020-10-06 11:18:04 +02:00
umip.h x86/Kconfig: Rename UMIP config parameter 2019-11-07 11:07:29 +01:00
unaligned.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
unistd.h x86/entry: Move max syscall number calculation to syscallhdr.sh 2020-03-21 16:03:21 +01:00
unwind.h x86/unwind/orc: Fix premature unwind stoppage due to IRET frames 2020-04-25 12:22:29 +02:00
unwind_hints.h objtool: Make unwind hint definitions available to other architectures 2020-09-10 10:43:13 -05:00
uprobes.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
user.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
user32.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
user_32.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
user_64.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vdso.h x86/vdso: Add time napespace page 2020-01-14 12:20:58 +01:00
vermagic.h arch: split MODULE_ARCH_VERMAGIC definitions out to <asm/vermagic.h> 2020-04-23 10:50:26 +09:00
vga.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vgtod.h um: Fix header inclusion 2020-03-23 18:45:14 +01:00
virtext.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499 2019-06-19 17:09:53 +02:00
vm86.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vmalloc.h mm, x86/mm: Untangle address space layout definitions from basic pgtable type definitions 2019-12-10 10:12:55 +01:00
vmware.h x86/cpu/vmware: Fix platform detection VMWARE_PORT macro 2019-10-22 00:51:44 +02:00
vmx.h KVM: VMX: Rename RDTSCP secondary exec control name to insert "ENABLE" 2020-09-28 07:57:30 -04:00
vmxfeatures.h KVM: VMX: Add VMX_FEATURE_USR_WAIT_PAUSE 2020-02-21 18:05:19 +01:00
vsyscall.h x86/vsyscall: Show something useful on a read fault 2019-06-28 00:04:39 +02:00
vvar.h x86/vdso: Add time napespace page 2020-01-14 12:20:58 +01:00
word-at-a-time.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
x86_init.h This feature enhances the current guest memory encryption support 2020-10-14 10:21:34 -07:00
xor.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 47 2019-05-24 17:27:13 +02:00
xor_32.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 47 2019-05-24 17:27:13 +02:00
xor_64.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xor_avx.h x86: remove always-defined CONFIG_AS_AVX 2020-04-09 00:01:59 +09:00