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 <mtosatti@xxxxxxxxxx> 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) -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
