[libvirt] [PATCH] qemu: Report shutdown event details
Martin Kletzander
mkletzan at redhat.com
Wed Apr 12 14:48:04 UTC 2017
QEMU will likely report the details of it shutting down, particularly
the system it received in case it was killed. We should forward that
information along. Since the only way we can extend information
provided to the user is adding event details, we might as well emit
multiple events (one with the reason for the shutdown and keep the one
for the shutdown being finished for clarity and compatibility).
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1384007
Signed-off-by: Martin Kletzander <mkletzan at redhat.com>
---
This is waiting for a patch in QEMU [1] that I tested this with.
[1] https://lists.gnu.org/archive/html/qemu-devel/2017-04/msg01098.html
examples/object-events/event-test.c | 9 +++++++++
include/libvirt/libvirt-domain.h | 3 +++
src/qemu/qemu_monitor.c | 6 +++---
src/qemu/qemu_monitor.h | 3 ++-
src/qemu/qemu_monitor_json.c | 4 ++--
src/qemu/qemu_process.c | 20 ++++++++++++++++++++
tools/virsh-domain.c | 6 +++++-
7 files changed, 44 insertions(+), 7 deletions(-)
diff --git a/examples/object-events/event-test.c b/examples/object-events/event-test.c
index 12690cac09ce..b4e1dd7970d9 100644
--- a/examples/object-events/event-test.c
+++ b/examples/object-events/event-test.c
@@ -240,6 +240,15 @@ eventDetailToString(int event,
case VIR_DOMAIN_EVENT_SHUTDOWN_FINISHED:
return "Finished";
+ case VIR_DOMAIN_EVENT_SHUTDOWN_SIGINT:
+ return "Killed with SIGINT";
+
+ case VIR_DOMAIN_EVENT_SHUTDOWN_SIGHUP:
+ return "Killed with SIGHUP";
+
+ case VIR_DOMAIN_EVENT_SHUTDOWN_SIGTERM:
+ return "Killed with SIGTERM";
+
case VIR_DOMAIN_EVENT_SHUTDOWN_LAST:
break;
}
diff --git a/include/libvirt/libvirt-domain.h b/include/libvirt/libvirt-domain.h
index 501996bc84f1..b3619c4baae7 100644
--- a/include/libvirt/libvirt-domain.h
+++ b/include/libvirt/libvirt-domain.h
@@ -2984,6 +2984,9 @@ typedef enum {
*/
typedef enum {
VIR_DOMAIN_EVENT_SHUTDOWN_FINISHED = 0, /* Guest finished shutdown sequence */
+ VIR_DOMAIN_EVENT_SHUTDOWN_SIGINT = 1, /* Guest is shutting down due to SIGINT */
+ VIR_DOMAIN_EVENT_SHUTDOWN_SIGHUP = 2, /* Guest is shutting down due to SIGHUP */
+ VIR_DOMAIN_EVENT_SHUTDOWN_SIGTERM = 3, /* Guest is shutting down due to SIGKILL */
# ifdef VIR_ENUM_SENTINELS
VIR_DOMAIN_EVENT_SHUTDOWN_LAST
diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c
index 1d40d521a9b3..044b58ff090d 100644
--- a/src/qemu/qemu_monitor.c
+++ b/src/qemu/qemu_monitor.c
@@ -1323,12 +1323,12 @@ qemuMonitorEmitEvent(qemuMonitorPtr mon, const char *event,
int
-qemuMonitorEmitShutdown(qemuMonitorPtr mon)
+qemuMonitorEmitShutdown(qemuMonitorPtr mon, const char *signal)
{
int ret = -1;
- VIR_DEBUG("mon=%p", mon);
+ VIR_DEBUG("mon=%p signal=%s", mon, NULLSTR(signal));
- QEMU_MONITOR_CALLBACK(mon, ret, domainShutdown, mon->vm);
+ QEMU_MONITOR_CALLBACK(mon, ret, domainShutdown, mon->vm, signal);
return ret;
}
diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h
index 12f98beba763..c6ecee66a140 100644
--- a/src/qemu/qemu_monitor.h
+++ b/src/qemu/qemu_monitor.h
@@ -130,6 +130,7 @@ typedef int (*qemuMonitorDomainEventCallback)(qemuMonitorPtr mon,
void *opaque);
typedef int (*qemuMonitorDomainShutdownCallback)(qemuMonitorPtr mon,
virDomainObjPtr vm,
+ const char *signal,
void *opaque);
typedef int (*qemuMonitorDomainResetCallback)(qemuMonitorPtr mon,
virDomainObjPtr vm,
@@ -344,7 +345,7 @@ int qemuMonitorGetDiskSecret(qemuMonitorPtr mon,
int qemuMonitorEmitEvent(qemuMonitorPtr mon, const char *event,
long long seconds, unsigned int micros,
const char *details);
-int qemuMonitorEmitShutdown(qemuMonitorPtr mon);
+int qemuMonitorEmitShutdown(qemuMonitorPtr mon, const char *signal);
int qemuMonitorEmitReset(qemuMonitorPtr mon);
int qemuMonitorEmitPowerdown(qemuMonitorPtr mon);
int qemuMonitorEmitStop(qemuMonitorPtr mon);
diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
index aeb777d37c12..4f67b4496b43 100644
--- a/src/qemu/qemu_monitor_json.c
+++ b/src/qemu/qemu_monitor_json.c
@@ -523,9 +523,9 @@ qemuMonitorJSONKeywordStringToJSON(const char *str, const char *firstkeyword)
}
-static void qemuMonitorJSONHandleShutdown(qemuMonitorPtr mon, virJSONValuePtr data ATTRIBUTE_UNUSED)
+static void qemuMonitorJSONHandleShutdown(qemuMonitorPtr mon, virJSONValuePtr data)
{
- qemuMonitorEmitShutdown(mon);
+ qemuMonitorEmitShutdown(mon, virJSONValueObjectGetString(data, "signal"));
}
static void qemuMonitorJSONHandleReset(qemuMonitorPtr mon, virJSONValuePtr data ATTRIBUTE_UNUSED)
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 5e119a237fba..3265db8f1590 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -634,10 +634,12 @@ qemuProcessHandleEvent(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
static int
qemuProcessHandleShutdown(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
virDomainObjPtr vm,
+ const char *signal,
void *opaque)
{
virQEMUDriverPtr driver = opaque;
qemuDomainObjPrivatePtr priv;
+ virObjectEventPtr pre_event = NULL;
virObjectEventPtr event = NULL;
virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
@@ -662,6 +664,23 @@ qemuProcessHandleShutdown(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
virDomainObjSetState(vm,
VIR_DOMAIN_SHUTDOWN,
VIR_DOMAIN_SHUTDOWN_UNKNOWN);
+
+ if (signal) {
+ virDomainEventShutdownDetailType detail = 0;
+
+ if (STREQ(signal, "int"))
+ detail = VIR_DOMAIN_EVENT_SHUTDOWN_SIGINT;
+ else if (STREQ(signal, "hup"))
+ detail = VIR_DOMAIN_EVENT_SHUTDOWN_SIGHUP;
+ else if (STREQ(signal, "term"))
+ detail = VIR_DOMAIN_EVENT_SHUTDOWN_SIGTERM;
+
+ if (detail)
+ pre_event = virDomainEventLifecycleNewFromObj(vm,
+ VIR_DOMAIN_EVENT_SHUTDOWN,
+ detail);
+ }
+
event = virDomainEventLifecycleNewFromObj(vm,
VIR_DOMAIN_EVENT_SHUTDOWN,
VIR_DOMAIN_EVENT_SHUTDOWN_FINISHED);
@@ -678,6 +697,7 @@ qemuProcessHandleShutdown(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
unlock:
virObjectUnlock(vm);
+ qemuDomainEventQueue(driver, pre_event);
qemuDomainEventQueue(driver, event);
virObjectUnref(cfg);
diff --git a/tools/virsh-domain.c b/tools/virsh-domain.c
index db8accfe436b..12c1908c44f9 100644
--- a/tools/virsh-domain.c
+++ b/tools/virsh-domain.c
@@ -12220,7 +12220,11 @@ VIR_ENUM_IMPL(virshDomainEventStopped,
VIR_ENUM_DECL(virshDomainEventShutdown)
VIR_ENUM_IMPL(virshDomainEventShutdown,
VIR_DOMAIN_EVENT_SHUTDOWN_LAST,
- N_("Finished"))
+ N_("Finished"),
+ N_("Killed with SIGINT"),
+ N_("Killed with SIGHUP"),
+ N_("Killed with SIGTERM"),
+ )
VIR_ENUM_DECL(virshDomainEventPMSuspended)
VIR_ENUM_IMPL(virshDomainEventPMSuspended,
--
2.12.2
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