[PATCH v2 2/4] qemu: process: implement domainMemoryFailure

[zhenwei pi]

Implement domainMemoryFailure callback function to handle a domain
memory failure event. Convert QEMU specified parameters to a common
libvirt domain event, and send to uplayer.

Notice that, this commit could compiling with the following patch
(introduce QEMU specified memory failure parameters).

Signed-off-by: zhenwei pi <pizhenwei at bytedance.com>
---
 src/qemu/qemu_process.c | 59 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)

diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 6b5de29fdb..7c24677ecb 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -1878,6 +1878,64 @@ qemuProcessHandleGuestCrashloaded(qemuMonitorPtr mon G_GNUC_UNUSED,
 }
 
 
+static int
+qemuProcessHandleMemoryFailure(qemuMonitorPtr mon G_GNUC_UNUSED,
+                               virDomainObjPtr vm,
+                               qemuMonitorEventMemoryFailurePtr mfp,
+                               void *opaque)
+{
+    virQEMUDriverPtr driver = opaque;
+    virObjectEventPtr event = NULL;
+    virDomainMemoryFailureRecipientType recipient;
+    virDomainMemoryFailureActionType action;
+    unsigned int flags = 0;
+
+    switch (mfp->recipient) {
+    case QEMU_MONITOR_MEMORY_FAILURE_RECIPIENT_HYPERVISOR:
+        recipient = VIR_DOMAIN_EVENT_MEMORY_FAILURE_RECIPIENT_HYPERVISOR;
+        break;
+    case QEMU_MONITOR_MEMORY_FAILURE_RECIPIENT_GUEST:
+        recipient = VIR_DOMAIN_EVENT_MEMORY_FAILURE_RECIPIENT_GUEST;
+        break;
+    case QEMU_MONITOR_MEMORY_FAILURE_RECIPIENT_LAST:
+    default:
+        virReportError(VIR_ERR_INVALID_ARG, "%s",
+                       _("requested unknown memory failure recipient"));
+        return -1;
+    }
+
+    switch (mfp->action) {
+    case QEMU_MONITOR_MEMORY_FAILURE_ACTION_IGNORE:
+        action = VIR_DOMAIN_EVENT_MEMORY_FAILURE_ACTION_IGNORE;
+        break;
+    case QEMU_MONITOR_MEMORY_FAILURE_ACTION_INJECT:
+        action = VIR_DOMAIN_EVENT_MEMORY_FAILURE_ACTION_INJECT;
+        break;
+    case QEMU_MONITOR_MEMORY_FAILURE_ACTION_FATAL:
+        action = VIR_DOMAIN_EVENT_MEMORY_FAILURE_ACTION_FATAL;
+        break;
+    case QEMU_MONITOR_MEMORY_FAILURE_ACTION_RESET:
+        action = VIR_DOMAIN_EVENT_MEMORY_FAILURE_ACTION_RESET;
+        break;
+    case QEMU_MONITOR_MEMORY_FAILURE_ACTION_LAST:
+    default:
+        virReportError(VIR_ERR_INVALID_ARG, "%s",
+                       _("requested unknown memory failure action"));
+        return -1;
+    }
+
+    if (mfp->action_required)
+        flags |= VIR_DOMAIN_MEMORY_FAILURE_ACTION_REQUIRED;
+    if (mfp->recursive)
+        flags |= VIR_DOMAIN_MEMORY_FAILURE_RECURSIVE;
+
+    event = virDomainEventMemoryFailureNewFromObj(vm, recipient, action, flags);
+    virObjectEventStateQueue(driver->domainEventState, event);
+
+    return 0;
+}
+
+
 static qemuMonitorCallbacks monitorCallbacks = {
     .eofNotify = qemuProcessHandleMonitorEOF,
     .errorNotify = qemuProcessHandleMonitorError,
@@ -1910,6 +1968,7 @@ static qemuMonitorCallbacks monitorCallbacks = {
     .domainPRManagerStatusChanged = qemuProcessHandlePRManagerStatusChanged,
     .domainRdmaGidStatusChanged = qemuProcessHandleRdmaGidStatusChanged,
     .domainGuestCrashloaded = qemuProcessHandleGuestCrashloaded,
+    .domainMemoryFailure = qemuProcessHandleMemoryFailure,
 };
 
 static void
-- 
2.11.0