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x86/cpu: Remove the CONFIG_X86_INVD_BUG quirk

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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
This commit is contained in:
Ingo Molnar 2025-04-25 10:42:03 +02:00
parent db1931e39b
commit 2ed46bccac
2 changed files with 0 additions and 11 deletions
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4
arch/x86/Kconfig.cpu
View File

@ -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

7
arch/x86/kernel/traps.c
View File

@ -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);
}