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Save vcpuinfo in status file

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* src/qemu_driver.c: Don't trust monitor for vcpu PID info on
  restart
* src/domain_conf.c: Save and load vCPU PID info from domain
  status file
This commit is contained in:
Daniel P. Berrange 2009-09-11 16:26:40 +01:00
parent 61a70716cd
commit f2ad7824aa
2 changed files with 36 additions and 4 deletions
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35
src/domain_conf.c
View File

@ -3061,6 +3061,8 @@ static virDomainObjPtr virDomainObjParseXML(virConnectPtr conn,
xmlNodePtr oldnode;
virDomainObjPtr obj;
char *monitorpath;
xmlNodePtr *nodes = NULL;
int n, i;
if (!(obj = virDomainObjNew(conn)))
return NULL;
@ -3133,9 +3135,32 @@ static virDomainObjPtr virDomainObjParseXML(virConnectPtr conn,
break;
}
n = virXPathNodeSet(conn, "./vcpus/vcpu", ctxt, &nodes);
if (n < 0)
goto error;
if (n) {
obj->nvcpupids = n;
if (VIR_REALLOC_N(obj->vcpupids, obj->nvcpupids) < 0)
goto error;
for (i = 0 ; i < n ; i++) {
char *pidstr = virXMLPropString(nodes[i], "pid");
if (!pidstr)
goto error;
if (virStrToLong_i(pidstr, NULL, 10, &(obj->vcpupids[i])) < 0) {
VIR_FREE(pidstr);
goto error;
}
VIR_FREE(pidstr);
}
VIR_FREE(nodes);
}
return obj;
error:
VIR_FREE(nodes);
virDomainChrDefFree(obj->monitor_chr);
virDomainObjFree(obj);
return NULL;
@ -4422,6 +4447,16 @@ char *virDomainObjFormat(virConnectPtr conn,
virBufferVSprintf(&buf, " type='%s'/>\n",
virDomainChrTypeToString(obj->monitor_chr->type));
if (obj->nvcpupids) {
int i;
virBufferAddLit(&buf, " <vcpus>\n");
for (i = 0 ; i < obj->nvcpupids ; i++) {
virBufferVSprintf(&buf, " <vcpu pid='%d'/>\n", obj->vcpupids[i]);
}
virBufferAddLit(&buf, " </vcpus>\n");
}
if (!(config_xml = virDomainDefFormat(conn,
obj->def,
flags)))

5
src/qemu_driver.c
View File

@ -336,10 +336,6 @@ qemuReconnectDomain(struct qemud_driver *driver,
goto error;
}
if (qemudDetectVcpuPIDs(NULL, obj) < 0) {
goto error;
}
if (qemuUpdateActivePciHostdevs(driver, obj->def) < 0) {
goto error;
}
@ -2519,6 +2515,7 @@ qemudMonitorCommandWithHandler(const virDomainObjPtr vm,
qemuMonitorDiscardPendingData(vm);
VIR_DEBUG("Send '%s'", cmd);
if (qemudMonitorSend(vm, cmd, scm_fd) < 0)
return -1;