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x86: KVM guest: kvm_get_tsc_khz: return khz, not lpj

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kvm_get_tsc_khz() currently returns the previously-calculated preset_lpj
value, but it is in loops-per-jiffy, not kHz. The current code works
correctly only when HZ=1000.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Eduardo Habkost 2008-12-05 18:36:45 -02:00 committed by Avi Kivity
parent ad218f85e3
commit e93353c93a
1 changed files with 4 additions and 4 deletions
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8
arch/x86/kernel/kvmclock.c
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@ -89,17 +89,17 @@ static cycle_t kvm_clock_read(void)
*/
static unsigned long kvm_get_tsc_khz(void)
{
return preset_lpj;
struct pvclock_vcpu_time_info *src;
src = &per_cpu(hv_clock, 0);
return pvclock_tsc_khz(src);
}
static void kvm_get_preset_lpj(void)
{
struct pvclock_vcpu_time_info *src;
unsigned long khz;
u64 lpj;
src = &per_cpu(hv_clock, 0);
khz = pvclock_tsc_khz(src);
khz = kvm_get_tsc_khz();
lpj = ((u64)khz * 1000);
do_div(lpj, HZ);