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qemu: Log additional data from hyperv crash notifier
The hyperv panic notifier reports additional data in form of 5 registers that are reported in the crash event from qemu. Log them into the VM log file and report them as a warning so that admins can see the cause of crash of their windows VMs. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1426176
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@ -3971,10 +3971,28 @@ doCoreDumpToAutoDumpPath(virQEMUDriverPtr driver,
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return ret;
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}
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static void
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qemuProcessGuestPanicEventInfo(virQEMUDriverPtr driver,
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virDomainObjPtr vm,
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qemuMonitorEventPanicInfoPtr info)
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{
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char *msg = qemuMonitorGuestPanicEventInfoFormatMsg(info);
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char *timestamp = virTimeStringNow();
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if (msg && timestamp)
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qemuDomainLogAppendMessage(driver, vm, "%s: panic %s\n", timestamp, msg);
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VIR_FREE(timestamp);
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VIR_FREE(msg);
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}
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static void
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processGuestPanicEvent(virQEMUDriverPtr driver,
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virDomainObjPtr vm,
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int action)
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int action,
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qemuMonitorEventPanicInfoPtr info)
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{
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qemuDomainObjPrivatePtr priv = vm->privateData;
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virObjectEventPtr event = NULL;
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@ -3990,6 +4008,9 @@ processGuestPanicEvent(virQEMUDriverPtr driver,
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goto endjob;
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}
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if (info)
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qemuProcessGuestPanicEventInfo(driver, vm, info);
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virDomainObjSetState(vm, VIR_DOMAIN_CRASHED, VIR_DOMAIN_CRASHED_PANICKED);
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event = virDomainEventLifecycleNewFromObj(vm,
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@ -4567,7 +4588,8 @@ static void qemuProcessEventHandler(void *data, void *opaque)
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processWatchdogEvent(driver, vm, processEvent->action);
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break;
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case QEMU_PROCESS_EVENT_GUESTPANIC:
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processGuestPanicEvent(driver, vm, processEvent->action);
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processGuestPanicEvent(driver, vm, processEvent->action,
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processEvent->data);
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break;
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case QEMU_PROCESS_EVENT_DEVICE_DELETED:
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processDeviceDeletedEvent(driver, vm, processEvent->data);
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@ -4243,6 +4243,30 @@ qemuMonitorQueryNamedBlockNodes(qemuMonitorPtr mon)
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}
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char *
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qemuMonitorGuestPanicEventInfoFormatMsg(qemuMonitorEventPanicInfoPtr info)
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{
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char *ret = NULL;
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switch (info->type) {
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case QEMU_MONITOR_EVENT_PANIC_INFO_TYPE_HYPERV:
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ignore_value(virAsprintf(&ret,
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"hyper-v: arg1='0x%llx', arg2='0x%llx', "
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"arg3='0x%llx', arg4='0x%llx', arg5='0x%llx'",
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info->data.hyperv.arg1, info->data.hyperv.arg2,
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info->data.hyperv.arg3, info->data.hyperv.arg4,
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info->data.hyperv.arg5));
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break;
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case QEMU_MONITOR_EVENT_PANIC_INFO_TYPE_NONE:
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case QEMU_MONITOR_EVENT_PANIC_INFO_TYPE_LAST:
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break;
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}
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return ret;
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}
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void
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qemuMonitorEventPanicInfoFree(qemuMonitorEventPanicInfoPtr info)
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{
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@ -97,6 +97,7 @@ struct _qemuMonitorEventPanicInfo {
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} data;
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};
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char *qemuMonitorGuestPanicEventInfoFormatMsg(qemuMonitorEventPanicInfoPtr info);
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void qemuMonitorEventPanicInfoFree(qemuMonitorEventPanicInfoPtr info);
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typedef void (*qemuMonitorDestroyCallback)(qemuMonitorPtr mon,
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