diff options
| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2025-05-16 15:33:05 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2025-05-17 10:38:16 +0200 |
| commit | 7212b58d6d7133e4cd3c2295e1fb54febe284156 (patch) | |
| tree | dd60adb01af78714287ed25cddce904865ad6533 /arch/x86/kernel/alternative.c | |
| parent | cba5d9b3e99d6268d7909a65c2bd78f4d195aead (diff) | |
x86/mm/64: Make 5-level paging support unconditional
Both Intel and AMD CPUs support 5-level paging, which is expected to
become more widely adopted in the future. All major x86 Linux
distributions have the feature enabled.
Remove CONFIG_X86_5LEVEL and related #ifdeffery for it to make it more readable.
Suggested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20250516123306.3812286-4-kirill.shutemov@linux.intel.com
Diffstat (limited to 'arch/x86/kernel/alternative.c')
| -rw-r--r-- | arch/x86/kernel/alternative.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c index 2385528792b2..f3c68b586a95 100644 --- a/arch/x86/kernel/alternative.c +++ b/arch/x86/kernel/alternative.c @@ -590,7 +590,7 @@ void __init_or_module noinline apply_alternatives(struct alt_instr *start, DPRINTK(ALT, "alt table %px, -> %px", start, end); /* - * In the case CONFIG_X86_5LEVEL=y, KASAN_SHADOW_START is defined using + * KASAN_SHADOW_START is defined using * cpu_feature_enabled(X86_FEATURE_LA57) and is therefore patched here. * During the process, KASAN becomes confused seeing partial LA57 * conversion and triggers a false-positive out-of-bound report. |