[PATCH v4 18/23] qemu: Avoid duplicate FakeReboot for secure guest

For secure guest, FakeReboot kills original QEMU instance and create new one. During this process, QEMU send SHUTDOWN event with "host-signal" reason which can trigger another FakeReboot. Check if a FakeReboot is ongoing and bypass "host-signal" processing which originally comes from FakeReboot. Signed-off-by: Zhenzhong Duan <zhenzhong.duan(a)intel.com&gt; Reviewed-by: Daniel P. Berrangé <berrange(a)redhat.com&gt; --- src/qemu/qemu_monitor.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c index 6d984df412..d726175d42 100644 --- a/src/qemu/qemu_monitor.c +++ b/src/qemu/qemu_monitor.c @@ -1073,6 +1073,16 @@ qemuMonitorEmitShutdown(qemuMonitor *mon, virTristateBool guest, * with it here. */ if (vm->def->sec && vm->def->sec->sectype == VIR_DOMAIN_LAUNCH_SECURITY_TDX) { + qemuDomainObjPrivate *priv = vm->privateData; + + /* For secure guest, FakeReboot kills original QEMU instance and + * create new one. During this process, QEMU send SHUTDOWN event + * with "host-signal" reason which can trigger another FakeReboot. + * Check if a FakeReboot is ongoing and bypass "host-signal" + * processing which is originally come from FakeReboot. */ + if (priv->fakeReboot && STREQ_NULLABLE(reason, "host-signal")) + return; + if ((STREQ_NULLABLE(reason, "guest-shutdown") && vm->def->onPoweroff == VIR_DOMAIN_LIFECYCLE_ACTION_RESTART) || (STREQ_NULLABLE(reason, "guest-reset") && -- 2.47.1