KVM: x86: Fix SVM VMCB reset

On reset, VMCB TSC should be set to zero. Instead, code was setting tsc_offset to zero, which passes through the underlying TSC. Signed-off-by: Zachary Amsden <[email protected]> Signed-off-by: Marcelo Tosatti <[email protected]>
hanmiltonxing · Oct 11, 2010 · 5887767 · 5887767
1 parent 85a3318
commit 5887767
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
@@ -766,7 +766,7 @@ static void init_vmcb(struct vcpu_svm *svm)
 
 	control->iopm_base_pa = iopm_base;
 	control->msrpm_base_pa = __pa(svm->msrpm);
-	control->tsc_offset = 0;
+	control->tsc_offset = 0-native_read_tsc();
 	control->int_ctl = V_INTR_MASKING_MASK;
 
 	init_seg(&save->es);