libvirt/SOURCES/libvirt-qemu-Fetch-pr-helpe...

105 lines
3.0 KiB
Diff

From deb8789da55b84c99df417f3cd07db52cac8f89b Mon Sep 17 00:00:00 2001
Message-Id: <deb8789da55b84c99df417f3cd07db52cac8f89b@dist-git>
From: Michal Privoznik <mprivozn@redhat.com>
Date: Wed, 11 Jul 2018 17:27:28 +0200
Subject: [PATCH] qemu: Fetch pr-helper process info on reconnect
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
https://bugzilla.redhat.com/show_bug.cgi?id=1470007
If qemu-pr-helper process died while libvirtd was not running no
event is emitted. Therefore, when reconnecting to the monitor we
must check the qemu-pr-helper process status and act accordingly.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
(cherry picked from commit ab435a4be4673a9a38e0315864b9cf4f9bee03e7)
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
---
src/qemu/qemu_process.c | 60 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 60 insertions(+)
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index fbc8529f3b..c903a8e5c8 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -2071,6 +2071,63 @@ qemuRefreshVirtioChannelState(virQEMUDriverPtr driver,
return ret;
}
+
+static int
+qemuProcessRefreshPRManagerState(virDomainObjPtr vm,
+ virHashTablePtr info)
+{
+ qemuDomainObjPrivatePtr priv = vm->privateData;
+ qemuMonitorPRManagerInfoPtr prManagerInfo;
+ const char *managedAlias = qemuDomainGetManagedPRAlias();
+ int ret = -1;
+
+ if (!(prManagerInfo = virHashLookup(info, managedAlias))) {
+ virReportError(VIR_ERR_OPERATION_FAILED,
+ _("missing info on pr-manager %s"),
+ managedAlias);
+ goto cleanup;
+ }
+
+ priv->prDaemonRunning = prManagerInfo->connected;
+
+ if (!priv->prDaemonRunning &&
+ qemuProcessStartManagedPRDaemon(vm) < 0)
+ goto cleanup;
+
+ ret = 0;
+ cleanup:
+ return ret;
+}
+
+
+static int
+qemuRefreshPRManagerState(virQEMUDriverPtr driver,
+ virDomainObjPtr vm)
+{
+ qemuDomainObjPrivatePtr priv = vm->privateData;
+ virHashTablePtr info = NULL;
+ int ret = -1;
+
+ if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_PR_MANAGER_HELPER) ||
+ !virDomainDefHasManagedPR(vm->def))
+ return 0;
+
+ qemuDomainObjEnterMonitor(driver, vm);
+ ret = qemuMonitorGetPRManagerInfo(priv->mon, &info);
+ if (qemuDomainObjExitMonitor(driver, vm) < 0)
+ ret = -1;
+
+ if (ret < 0)
+ goto cleanup;
+
+ ret = qemuProcessRefreshPRManagerState(vm, info);
+
+ cleanup:
+ virHashFree(info);
+ return ret;
+}
+
+
static void
qemuRefreshRTC(virQEMUDriverPtr driver,
virDomainObjPtr vm)
@@ -7736,6 +7793,9 @@ qemuProcessReconnect(void *opaque)
if (qemuProcessUpdateDevices(driver, obj) < 0)
goto error;
+ if (qemuRefreshPRManagerState(driver, obj) < 0)
+ goto error;
+
qemuProcessReconnectCheckMemAliasOrderMismatch(obj);
if (qemuConnectAgent(driver, obj) < 0)
--
2.18.0