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author | Ingo Molnar <mingo@elte.hu> | 2008-07-19 01:00:05 +0400 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-07-19 01:00:05 +0400 |
commit | 453c1404c5273a30d715e5a83372a78cff70b6d9 (patch) | |
tree | 94a5a3abd85137c4def416a84a45989751260f20 /arch/x86/kernel/cpu/bugs.c | |
parent | a208f37a465e222218974ab20a31b42b7b4893b2 (diff) | |
parent | 35b680557f95564f70f21a8d3f5c72e101fab260 (diff) | |
download | linux-453c1404c5273a30d715e5a83372a78cff70b6d9.tar.xz |
Merge branch 'x86/apic' into x86/x2apic
Conflicts:
arch/x86/kernel/paravirt.c
arch/x86/kernel/smpboot.c
arch/x86/kernel/vmi_32.c
arch/x86/lguest/boot.c
arch/x86/xen/enlighten.c
include/asm-x86/apic.h
include/asm-x86/paravirt.h
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/cpu/bugs.c')
-rw-r--r-- | arch/x86/kernel/cpu/bugs.c | 23 |
1 files changed, 1 insertions, 22 deletions
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c index 1b1c56bb338f..c9b58a806e85 100644 --- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c @@ -131,13 +131,7 @@ static void __init check_popad(void) * (for due to lack of "invlpg" and working WP on a i386) * - In order to run on anything without a TSC, we need to be * compiled for a i486. - * - In order to support the local APIC on a buggy Pentium machine, - * we need to be compiled with CONFIG_X86_GOOD_APIC disabled, - * which happens implicitly if compiled for a Pentium or lower - * (unless an advanced selection of CPU features is used) as an - * otherwise config implies a properly working local APIC without - * the need to do extra reads from the APIC. -*/ + */ static void __init check_config(void) { @@ -151,21 +145,6 @@ static void __init check_config(void) if (boot_cpu_data.x86 == 3) panic("Kernel requires i486+ for 'invlpg' and other features"); #endif - -/* - * If we were told we had a good local APIC, check for buggy Pentia, - * i.e. all B steppings and the C2 stepping of P54C when using their - * integrated APIC (see 11AP erratum in "Pentium Processor - * Specification Update"). - */ -#if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_X86_GOOD_APIC) - if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL - && cpu_has_apic - && boot_cpu_data.x86 == 5 - && boot_cpu_data.x86_model == 2 - && (boot_cpu_data.x86_mask < 6 || boot_cpu_data.x86_mask == 11)) - panic("Kernel compiled for PMMX+, assumes a local APIC without the read-before-write bug!"); -#endif } |