render / rpms / libvirt

Forked from rpms/libvirt 10 months ago
Clone
edecca
From deb8789da55b84c99df417f3cd07db52cac8f89b Mon Sep 17 00:00:00 2001
edecca
Message-Id: <deb8789da55b84c99df417f3cd07db52cac8f89b@dist-git>
edecca
From: Michal Privoznik <mprivozn@redhat.com>
edecca
Date: Wed, 11 Jul 2018 17:27:28 +0200
edecca
Subject: [PATCH] qemu: Fetch pr-helper process info on reconnect
edecca
MIME-Version: 1.0
edecca
Content-Type: text/plain; charset=UTF-8
edecca
Content-Transfer-Encoding: 8bit
edecca
edecca
https://bugzilla.redhat.com/show_bug.cgi?id=1470007
edecca
edecca
If qemu-pr-helper process died while libvirtd was not running no
edecca
event is emitted. Therefore, when reconnecting to the monitor we
edecca
must check the qemu-pr-helper process status and act accordingly.
edecca
edecca
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
edecca
(cherry picked from commit ab435a4be4673a9a38e0315864b9cf4f9bee03e7)
edecca
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
edecca
Reviewed-by: Ján Tomko <jtomko@redhat.com>
edecca
---
edecca
 src/qemu/qemu_process.c | 60 +++++++++++++++++++++++++++++++++++++++++
edecca
 1 file changed, 60 insertions(+)
edecca
edecca
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
edecca
index fbc8529f3b..c903a8e5c8 100644
edecca
--- a/src/qemu/qemu_process.c
edecca
+++ b/src/qemu/qemu_process.c
edecca
@@ -2071,6 +2071,63 @@ qemuRefreshVirtioChannelState(virQEMUDriverPtr driver,
edecca
     return ret;
edecca
 }
edecca
 
edecca
+
edecca
+static int
edecca
+qemuProcessRefreshPRManagerState(virDomainObjPtr vm,
edecca
+                                 virHashTablePtr info)
edecca
+{
edecca
+    qemuDomainObjPrivatePtr priv = vm->privateData;
edecca
+    qemuMonitorPRManagerInfoPtr prManagerInfo;
edecca
+    const char *managedAlias = qemuDomainGetManagedPRAlias();
edecca
+    int ret = -1;
edecca
+
edecca
+    if (!(prManagerInfo = virHashLookup(info, managedAlias))) {
edecca
+        virReportError(VIR_ERR_OPERATION_FAILED,
edecca
+                       _("missing info on pr-manager %s"),
edecca
+                       managedAlias);
edecca
+        goto cleanup;
edecca
+    }
edecca
+
edecca
+    priv->prDaemonRunning = prManagerInfo->connected;
edecca
+
edecca
+    if (!priv->prDaemonRunning &&
edecca
+        qemuProcessStartManagedPRDaemon(vm) < 0)
edecca
+        goto cleanup;
edecca
+
edecca
+    ret = 0;
edecca
+ cleanup:
edecca
+    return ret;
edecca
+}
edecca
+
edecca
+
edecca
+static int
edecca
+qemuRefreshPRManagerState(virQEMUDriverPtr driver,
edecca
+                          virDomainObjPtr vm)
edecca
+{
edecca
+    qemuDomainObjPrivatePtr priv = vm->privateData;
edecca
+    virHashTablePtr info = NULL;
edecca
+    int ret = -1;
edecca
+
edecca
+    if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_PR_MANAGER_HELPER) ||
edecca
+        !virDomainDefHasManagedPR(vm->def))
edecca
+        return 0;
edecca
+
edecca
+    qemuDomainObjEnterMonitor(driver, vm);
edecca
+    ret = qemuMonitorGetPRManagerInfo(priv->mon, &info;;
edecca
+    if (qemuDomainObjExitMonitor(driver, vm) < 0)
edecca
+        ret = -1;
edecca
+
edecca
+    if (ret < 0)
edecca
+        goto cleanup;
edecca
+
edecca
+    ret = qemuProcessRefreshPRManagerState(vm, info);
edecca
+
edecca
+ cleanup:
edecca
+    virHashFree(info);
edecca
+    return ret;
edecca
+}
edecca
+
edecca
+
edecca
 static void
edecca
 qemuRefreshRTC(virQEMUDriverPtr driver,
edecca
                virDomainObjPtr vm)
edecca
@@ -7736,6 +7793,9 @@ qemuProcessReconnect(void *opaque)
edecca
     if (qemuProcessUpdateDevices(driver, obj) < 0)
edecca
         goto error;
edecca
 
edecca
+    if (qemuRefreshPRManagerState(driver, obj) < 0)
edecca
+        goto error;
edecca
+
edecca
     qemuProcessReconnectCheckMemAliasOrderMismatch(obj);
edecca
 
edecca
     if (qemuConnectAgent(driver, obj) < 0)
edecca
-- 
edecca
2.18.0
edecca