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