diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-07-18 23:00:05 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-18 23:00:05 +0200 |
| commit | 453c1404c5273a30d715e5a83372a78cff70b6d9 (patch) | |
| tree | 94a5a3abd85137c4def416a84a45989751260f20 /arch/x86/kernel/cpu/intel.c | |
| parent | a208f37a465e222218974ab20a31b42b7b4893b2 (diff) | |
| parent | 35b680557f95564f70f21a8d3f5c72e101fab260 (diff) | |
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/intel.c')
| -rw-r--r-- | arch/x86/kernel/cpu/intel.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c index 70609efdf1d..b75f2569b8f 100644 --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -227,6 +227,16 @@ static void __cpuinit init_intel(struct cpuinfo_x86 *c) if (cpu_has_bts) ds_init_intel(c); + /* + * See if we have a good local APIC by checking 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 (cpu_has_apic && (c->x86<<8 | c->x86_model<<4) == 0x520 && + (c->x86_mask < 0x6 || c->x86_mask == 0xb)) + set_cpu_cap(c, X86_FEATURE_11AP); + #ifdef CONFIG_X86_NUMAQ numaq_tsc_disable(); #endif |