diff options
| author | Andi Kleen <ak@suse.de> | 2008-01-30 13:33:20 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:33:20 +0100 |
| commit | 8424950b5e85543a494b5d940bb2f5f9f16f56a9 (patch) | |
| tree | 8dd3c32ef00aa15d2f6bb907ed2aadc2f8417412 /arch | |
| parent | 135302577bb964ebf23376e2d991405ef4ff0457 (diff) | |
x86: don't disable RDTSC in userland for 32bit notsc
Modern 32bit userland doesn't even boot when the TSC is disabled
because ld.so tends to contain RDTSCs. So make notsc only effective for the
kernel, similar to 64bit.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/cpu/common.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 5f9c8e3a3e0..c66991a04a8 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -654,7 +654,6 @@ void __cpuinit cpu_init(void) printk(KERN_NOTICE "Disabling TSC...\n"); /**** FIX-HPA: DOES THIS REALLY BELONG HERE? ****/ clear_bit(X86_FEATURE_TSC, boot_cpu_data.x86_capability); - set_in_cr4(X86_CR4_TSD); } load_idt(&idt_descr); |