diff options
| author | Ingo Molnar <mingo@kernel.org> | 2025-04-25 11:42:03 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2026-05-06 09:05:30 +0300 |
| commit | 2ed46bccac394fd960c20dd9dc4c5fe0a9d7c0ef (patch) | |
| tree | 4f27383202802aba6dfb15904051191b2abef71b | |
| parent | db1931e39ba15827eb1889594916b80227b7956c (diff) | |
| download | linux-2ed46bccac394fd960c20dd9dc4c5fe0a9d7c0ef.tar.xz | |
x86/cpu: Remove the CONFIG_X86_INVD_BUG quirk
Now that support for 486 CPUs is gone, remove this
quirk as well.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Ahmed S. Darwish <darwi@linutronix.de>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20250425084216.3913608-7-mingo@kernel.org
| -rw-r--r-- | arch/x86/Kconfig.cpu | 4 | ||||
| -rw-r--r-- | arch/x86/kernel/traps.c | 7 |
2 files changed, 0 insertions, 11 deletions
diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu index 9b912091dabd..1377edd9a997 100644 --- a/arch/x86/Kconfig.cpu +++ b/arch/x86/Kconfig.cpu @@ -248,10 +248,6 @@ config X86_F00F_BUG def_bool y depends on M586MMX || M586TSC || M586 -config X86_INVD_BUG - def_bool y - depends on M486SX || M486 - config X86_ALIGNMENT_16 def_bool y depends on MCYRIXIII || MK6 || M586MMX || M586TSC || M586 || MVIAC3_2 || MGEODEGX1 diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c index 0ca3912ecb7f..52177bce0802 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -1475,13 +1475,6 @@ DEFINE_IDTENTRY(exc_coprocessor_error) DEFINE_IDTENTRY(exc_simd_coprocessor_error) { - if (IS_ENABLED(CONFIG_X86_INVD_BUG)) { - /* AMD 486 bug: INVD in CPL 0 raises #XF instead of #GP */ - if (!static_cpu_has(X86_FEATURE_XMM)) { - __exc_general_protection(regs, 0); - return; - } - } math_error(regs, X86_TRAP_XF); } |