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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>
hifive-unleashed-5.1
Andi Kleen 2008-01-30 13:33:20 +01:00 committed by Ingo Molnar
parent 135302577b
commit 8424950b5e
1 changed files with 0 additions and 1 deletions
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arch/x86/kernel/cpu/common.c
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@ -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);