x86: KVM guest: kvm_get_tsc_khz: return khz, not lpj
Eduardo Habkost [Fri, 5 Dec 2008 20:36:45 +0000 (18:36 -0200)]
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>

arch/x86/kernel/kvmclock.c

index b38e801..652fce6 100644 (file)
@@ -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);