linux/arch/x86/boot
NOMURA JUNICHI(野村 淳一) ac456ca0af x86/boot: Add a message about ignored early NMIs
Commit

  78a509fba9 ("x86/boot: Ignore NMIs during very early boot")

added an empty handler in early boot stage to avoid boot failure due to
spurious NMIs.

Add a diagnostic message to show that early NMIs have occurred.

  [ bp: Touchups. ]

  [ Committer note: tested by stopping the guest really early and
    injecting NMIs through qemu's monitor. Result:

    early console in setup code
    Spurious early NMIs ignored: 13
    ... ]

Suggested-by: Borislav Petkov <bp@alien8.de>
Suggested-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Jun'ichi Nomura <junichi.nomura@nec.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Link: https://lore.kernel.org/lkml/20231130103339.GCZWhlA196uRklTMNF@fat_crate.local
2024-02-06 10:51:11 +01:00
..
compressed x86/boot: Add a message about ignored early NMIs 2024-02-06 10:51:11 +01:00
tools x86/boot: Increase section and file alignment to 4k/512 2023-09-17 19:48:44 +02:00
.gitignore x86/boot: Modernize genimage script; hdimage+EFI support 2021-05-10 12:27:50 +02:00
a20.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497 2019-06-19 17:09:53 +02:00
apm.c x86/boot: Fix comment spelling 2020-03-17 20:52:52 +01:00
bioscall.S x86/boot: Avoid using Intel mnemonics in AT&T syntax asm 2023-01-10 13:03:23 +01:00
bitops.h x86/boot: Remove superfluous type casting from arch/x86/boot/bitops.h 2022-08-15 19:17:43 +02:00
boot.h - Add a "make x86_debug.config" target which enables a bunch of useful 2022-05-23 18:15:44 -07:00
cmdline.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
copy.S x86/asm: Do not annotate functions with GLOBAL 2019-10-18 11:25:58 +02:00
cpu.c x86/cpu: Remove X86_FEATURE_NAMES 2023-05-15 20:03:08 +02:00
cpucheck.c x86/boot: Use MSR read/write helpers instead of inline assembly 2022-04-06 13:02:13 +02:00
cpuflags.c x86/boot: Remove x86_32 PIC using %ebx workaround 2022-11-29 16:26:53 +01:00
cpuflags.h x86/tdx: Detect TDX at early kernel decompression time 2022-04-07 08:27:51 -07:00
ctype.h
early_serial_console.c
edd.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497 2019-06-19 17:09:53 +02:00
genimage.sh x86/boot: Fix make hdimage with older versions of mtools 2021-09-29 11:06:47 +02:00
header.S x86/boot: Increase section and file alignment to 4k/512 2023-09-17 19:48:44 +02:00
install.sh kbuild: factor out the common installation code into scripts/install.sh 2022-05-11 21:45:53 +09:00
io.h x86/boot: Port I/O: Allow to hook up alternative helpers 2022-04-07 08:27:52 -07:00
main.c - Add a "make x86_debug.config" target which enables a bunch of useful 2022-05-23 18:15:44 -07:00
Makefile x86/boot: Split off PE/COFF .data section 2023-09-17 19:48:43 +02:00
memory.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497 2019-06-19 17:09:53 +02:00
mkcpustr.c x86/cpu: Print VMX flags in /proc/cpuinfo using VMX_FEATURES_* 2020-01-13 18:36:02 +01:00
msr.h x86/boot: Introduce helpers for MSR reads/writes 2022-04-06 12:59:17 +02:00
mtools.conf.in x86/boot: Fix make hdimage with older versions of mtools 2021-09-29 11:06:47 +02:00
pm.c x86/asm: Always set A (accessed) flag in GDT descriptors 2023-12-20 10:57:51 +01:00
pmjump.S x86/asm: Do not annotate functions with GLOBAL 2019-10-18 11:25:58 +02:00
printf.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497 2019-06-19 17:09:53 +02:00
regs.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 83 2019-05-24 17:37:52 +02:00
setup.ld x86/boot: Increase section and file alignment to 4k/512 2023-09-17 19:48:44 +02:00
string.c x86/boot: Remove redundant initialization of the 'delta' variable in strcmp() 2023-12-20 22:23:33 +01:00
string.h x86/boot/string: Add missing function prototypes 2021-12-10 19:49:06 +01:00
tty.c treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
version.c kbuild: build init/built-in.a just once 2022-09-29 04:40:15 +09:00
vesa.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 48 2019-05-24 17:27:13 +02:00
video-bios.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497 2019-06-19 17:09:53 +02:00
video-mode.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497 2019-06-19 17:09:53 +02:00
video-vesa.c sysfb: Enable boot time VESA graphic mode selection 2022-03-04 20:55:33 +01:00
video-vga.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497 2019-06-19 17:09:53 +02:00
video.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497 2019-06-19 17:09:53 +02:00
video.h treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00