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| author | Ingo Molnar <mingo@elte.hu> | 2008-09-14 18:24:00 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-09-14 18:24:00 +0200 |
| commit | 83bd6998b04fc1bb7280b14f16b2bdbdc07c914b (patch) | |
| tree | af1bbe2bac5752b69b1ac58bf5d822c735da439b /arch/x86/boot/main.c | |
| parent | x86: hpet: modify IXP400 quirk to enable interrupts (diff) | |
| parent | Linux 2.6.27-rc6 (diff) | |
| download | linux-83bd6998b04fc1bb7280b14f16b2bdbdc07c914b.tar.xz linux-83bd6998b04fc1bb7280b14f16b2bdbdc07c914b.zip | |
Merge commit 'v2.6.27-rc6' into timers/hpet
Diffstat (limited to 'arch/x86/boot/main.c')
| -rw-r--r-- | arch/x86/boot/main.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/boot/main.c b/arch/x86/boot/main.c index 2296164b54d2..197421db1af1 100644 --- a/arch/x86/boot/main.c +++ b/arch/x86/boot/main.c @@ -73,6 +73,11 @@ static void keyboard_set_repeat(void) */ static void query_ist(void) { + /* Some older BIOSes apparently crash on this call, so filter + it from machines too old to have SpeedStep at all. */ + if (cpu.level < 6) + return; + asm("int $0x15" : "=a" (boot_params.ist_info.signature), "=b" (boot_params.ist_info.command), |