When the guest writes to the TSC, the masterclock TSC copy must be updated
as well along with the TSC_OFFSET update, otherwise a
negative tsc_timestamp is calculated at kvm_guest_time_update.
Signed-off-by: Marcelo Tosatti <mtosa...@redhat.com>
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 0033df3..f52a887 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1248,7 +1248,7 @@ void kvm_track_tsc_matching(struct kvm_vcpu *vcpu)
if (!ka->use_master_clock)
do_request = 1;
- if (!vcpus_matched && ka->use_master_clock)
+ if (ka->use_master_clock)
do_request = 1;
if (do_request)
--
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