tests: hotplug: Add test infrastructure for testing qemu CPU hotplug code

The cpu hotplug operation is rather complex so the testing code needs to
provide quite lot of data and monitor conversations to successfully test
it. The code mainly tests the selection of cpus according to the target
count request.

diff --git a/tests/qemuhotplugtest.c b/tests/qemuhotplugtest.c
index f0a84539471a003cf82fbe87ae98996665f3b847..af8c3fe01afa50362255b7d59bf02db3c0412dcd 100644 (file)
--- a/tests/qemuhotplugtest.c
+++ b/tests/qemuhotplugtest.c
@@ -347,11 +347,187 @@ testQemuHotplug(const void *data)
     return ((ret < 0 && fail) || (!ret && !fail)) ? 0 : -1;
 }
 
+
+struct testQemuHotplugCpuData {
+    char *file_xml_dom;
+    char *file_xml_res_live;
+    char *file_xml_res_conf;
+    char *file_json_monitor;
+
+    char *xml_dom;
+
+    virDomainObjPtr vm;
+    qemuMonitorTestPtr mon;
+    bool modern;
+};
+
+
+static void
+testQemuHotplugCpuDataFree(struct testQemuHotplugCpuData *data)
+{
+    if (!data)
+        return;
+
+    VIR_FREE(data->file_xml_dom);
+    VIR_FREE(data->file_xml_res_live);
+    VIR_FREE(data->file_xml_res_conf);
+    VIR_FREE(data->file_json_monitor);
+
+    VIR_FREE(data->xml_dom);
+
+    virObjectUnref(data->vm);
+    qemuMonitorTestFree(data->mon);
+}
+
+
+static struct testQemuHotplugCpuData *
+testQemuHotplugCpuPrepare(const char *test,
+                          bool modern)
+{
+    qemuDomainObjPrivatePtr priv = NULL;
+    virCapsPtr caps = NULL;
+    char *prefix = NULL;
+    struct testQemuHotplugCpuData *data = NULL;
+
+    if (virAsprintf(&prefix, "%s/qemuhotplugtestcpus/%s", abs_srcdir, test) < 0)
+        return NULL;
+
+    if (VIR_ALLOC(data) < 0)
+        goto error;
+
+    data->modern = modern;
+
+    if (virAsprintf(&data->file_xml_dom, "%s-domain.xml", prefix) < 0 ||
+        virAsprintf(&data->file_xml_res_live, "%s-result-live.xml", prefix) < 0 ||
+        virAsprintf(&data->file_xml_res_conf, "%s-result-conf.xml", prefix) < 0 ||
+        virAsprintf(&data->file_json_monitor, "%s-monitor.json", prefix) < 0)
+        goto error;
+
+    if (virTestLoadFile(data->file_xml_dom, &data->xml_dom) < 0)
+        goto error;
+
+    if (qemuHotplugCreateObjects(driver.xmlopt, &data->vm, data->xml_dom, true,
+                                 "cpu-hotplug-test-domain") < 0)
+        goto error;
+
+    if (!(caps = virQEMUDriverGetCapabilities(&driver, false)))
+        goto error;
+
+    /* create vm->newDef */
+    data->vm->persistent = true;
+    if (virDomainObjSetDefTransient(caps, driver.xmlopt, data->vm) < 0)
+        goto error;
+
+    priv = data->vm->privateData;
+
+    if (data->modern)
+        virQEMUCapsSet(priv->qemuCaps, QEMU_CAPS_QUERY_HOTPLUGGABLE_CPUS);
+
+    if (!(data->mon = qemuMonitorTestNewFromFileFull(data->file_json_monitor,
+                                                     &driver, data->vm)))
+        goto error;
+
+    priv->mon = qemuMonitorTestGetMonitor(data->mon);
+    priv->monJSON = true;
+    virObjectUnlock(priv->mon);
+
+    if (qemuDomainRefreshVcpuInfo(&driver, data->vm, 0, false) < 0)
+        goto error;
+
+    return data;
+
+ error:
+    virObjectUnref(caps);
+    testQemuHotplugCpuDataFree(data);
+    VIR_FREE(prefix);
+    return NULL;
+}
+
+
+static int
+testQemuHotplugCpuFinalize(struct testQemuHotplugCpuData *data)
+{
+    int ret = -1;
+    char *activeXML = NULL;
+    char *configXML = NULL;
+
+    if (data->file_xml_res_live) {
+        if (!(activeXML = virDomainDefFormat(data->vm->def, driver.caps,
+                                             VIR_DOMAIN_DEF_FORMAT_SECURE)))
+            goto cleanup;
+
+        if (virTestCompareToFile(activeXML, data->file_xml_res_live) < 0)
+            goto cleanup;
+    }
+
+    if (data->file_xml_res_conf) {
+        if (!(configXML = virDomainDefFormat(data->vm->newDef, driver.caps,
+                                             VIR_DOMAIN_DEF_FORMAT_SECURE |
+                                             VIR_DOMAIN_DEF_FORMAT_INACTIVE)))
+            goto cleanup;
+
+        if (virTestCompareToFile(configXML, data->file_xml_res_conf) < 0)
+            goto cleanup;
+    }
+
+    ret = 0;
+
+ cleanup:
+     VIR_FREE(activeXML);
+     VIR_FREE(configXML);
+     return ret;
+}
+
+
+struct testQemuHotplugCpuParams {
+    const char *test;
+    int newcpus;
+    bool modern;
+    bool fail;
+};
+
+
+static int
+testQemuHotplugCpuGroup(const void *opaque)
+{
+    const struct testQemuHotplugCpuParams *params = opaque;
+    struct testQemuHotplugCpuData *data = NULL;
+    int ret = -1;
+    int rc;
+
+    if (!(data = testQemuHotplugCpuPrepare(params->test, params->modern)))
+        return -1;
+
+    rc = qemuDomainSetVcpusInternal(&driver, data->vm, data->vm->def,
+                                    data->vm->newDef, params->newcpus,
+                                    params->modern);
+
+    if (params->fail) {
+        if (rc == 0)
+            fprintf(stderr, "cpu test '%s' should have failed\n", params->test);
+        else
+            ret = 0;
+
+        goto cleanup;
+    } else {
+        if (rc < 0)
+            goto cleanup;
+    }
+
+    ret = testQemuHotplugCpuFinalize(data);
+
+ cleanup:
+    testQemuHotplugCpuDataFree(data);
+    return ret;
+}
+
+
 static int
 mymain(void)
 {
     int ret = 0;
     struct qemuHotplugTestData data = {0};
+    struct testQemuHotplugCpuParams cpudata;
 
 #if !WITH_YAJL
     fputs("libvirt not compiled with yajl, skipping this test\n", stderr);
@@ -584,6 +760,19 @@ mymain(void)
                    "device_del", QMP_OK,
                    "object-del", QMP_OK);
 
+#define DO_TEST_CPU_GROUP(prefix, vcpus, modernhp, expectfail)                 \
+    do {                                                                       \
+        cpudata.test = prefix;                                                 \
+        cpudata.newcpus = vcpus;                                               \
+        cpudata.modern = modernhp;                                             \
+        cpudata.fail = expectfail;                                             \
+        if (virTestRun("hotplug vcpus group " prefix,                          \
+                       testQemuHotplugCpuGroup, &cpudata) < 0)                 \
+            ret = -1;                                                          \
+    } while (0)
+
+    DO_TEST_CPU_GROUP("x86-modern-bulk", 7, true, false);
+
     qemuTestDriverFree(&driver);
     return (ret == 0) ? EXIT_SUCCESS : EXIT_FAILURE;
 }

diff --git a/tests/qemuhotplugtestcpus/x86-modern-bulk-domain.xml b/tests/qemuhotplugtestcpus/x86-modern-bulk-domain.xml
new file mode 100644 (file)
index 0000000..1c2a5b1
--- /dev/null
+++ b/tests/qemuhotplugtestcpus/x86-modern-bulk-domain.xml
@@ -0,0 +1,21 @@
+<domain type='qemu'>
+  <name>QEMUGuest1</name>
+  <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+  <memory unit='KiB'>219100</memory>
+  <currentMemory unit='KiB'>219100</currentMemory>
+  <vcpu placement='static' current='5'>8</vcpu>
+  <os>
+    <type arch='x86_64' machine='pc'>hvm</type>
+    <boot dev='network'/>
+  </os>
+  <cpu>
+    <topology sockets="4" cores="2" threads="1"/>
+  </cpu>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>destroy</on_crash>
+  <devices>
+      <emulator>/usr/bin/qemu</emulator>
+  </devices>
+</domain>

diff --git a/tests/qemuhotplugtestcpus/x86-modern-bulk-monitor.json b/tests/qemuhotplugtestcpus/x86-modern-bulk-monitor.json
new file mode 100644 (file)
index 0000000..4dcb6a2
--- /dev/null
+++ b/tests/qemuhotplugtestcpus/x86-modern-bulk-monitor.json
@@ -0,0 +1,471 @@
+{"execute":"query-hotpluggable-cpus","id":"libvirt-1"}
+
+{
+  "return": [
+    {
+      "props": {
+        "core-id": 1,
+        "thread-id": 1,
+        "socket-id": 1
+      },
+      "vcpus-count": 1,
+      "type": "qemu64-x86_64-cpu"
+    },
+    {
+      "props": {
+        "core-id": 1,
+        "thread-id": 0,
+        "socket-id": 1
+      },
+      "vcpus-count": 1,
+      "type": "qemu64-x86_64-cpu"
+    },
+    {
+      "props": {
+        "core-id": 0,
+        "thread-id": 1,
+        "socket-id": 1
+      },
+      "vcpus-count": 1,
+      "type": "qemu64-x86_64-cpu"
+    },
+    {
+      "props": {
+        "core-id": 0,
+        "thread-id": 0,
+        "socket-id": 1
+      },
+      "vcpus-count": 1,
+      "qom-path": "/machine/unattached/device[5]",
+      "type": "qemu64-x86_64-cpu"
+    },
+    {
+      "props": {
+        "core-id": 1,
+        "thread-id": 1,
+        "socket-id": 0
+      },
+      "vcpus-count": 1,
+      "qom-path": "/machine/unattached/device[4]",
+      "type": "qemu64-x86_64-cpu"
+    },
+    {
+      "props": {
+        "core-id": 1,
+        "thread-id": 0,
+        "socket-id": 0
+      },
+      "vcpus-count": 1,
+      "qom-path": "/machine/unattached/device[3]",
+      "type": "qemu64-x86_64-cpu"
+    },
+    {
+      "props": {
+        "core-id": 0,
+        "thread-id": 1,
+        "socket-id": 0
+      },
+      "vcpus-count": 1,
+      "qom-path": "/machine/unattached/device[2]",
+      "type": "qemu64-x86_64-cpu"
+    },
+    {
+      "props": {
+        "core-id": 0,
+        "thread-id": 0,
+        "socket-id": 0
+      },
+      "vcpus-count": 1,
+      "qom-path": "/machine/unattached/device[0]",
+      "type": "qemu64-x86_64-cpu"
+    }
+  ],
+  "id": "libvirt-23"
+}
+
+{"execute":"query-cpus","id":"libvirt-2"}
+
+{
+  "return": [
+    {
+      "arch": "x86",
+      "current": true,
+      "CPU": 0,
+      "qom_path": "/machine/unattached/device[0]",
+      "pc": -2130415978,
+      "halted": true,
+      "thread_id": 518291
+    },
+    {
+      "arch": "x86",
+      "current": false,
+      "CPU": 1,
+      "qom_path": "/machine/unattached/device[2]",
+      "pc": -2130415978,
+      "halted": true,
+      "thread_id": 518292
+    },
+    {
+      "arch": "x86",
+      "current": false,
+      "CPU": 2,
+      "qom_path": "/machine/unattached/device[3]",
+      "pc": -2130415978,
+      "halted": true,
+      "thread_id": 518294
+    },
+    {
+      "arch": "x86",
+      "current": false,
+      "CPU": 3,
+      "qom_path": "/machine/unattached/device[4]",
+      "pc": -2130415978,
+      "halted": true,
+      "thread_id": 518295
+    },
+    {
+      "arch": "x86",
+      "current": false,
+      "CPU": 4,
+      "qom_path": "/machine/unattached/device[5]",
+      "pc": -2130415978,
+      "halted": true,
+      "thread_id": 518296
+    }
+  ],
+  "id": "libvirt-22"
+}
+
+{
+    "execute": "device_add",
+    "arguments": {
+        "driver": "qemu64-x86_64-cpu",
+        "id": "vcpu5",
+        "socket-id": 1,
+        "core-id": 0,
+        "thread-id": 1
+    },
+    "id": "libvirt-3"
+}
+
+{"return": {}}
+
+{"execute":"query-hotpluggable-cpus","id":"libvirt-4"}
+
+{
+  "return": [
+    {
+      "props": {
+        "core-id": 1,
+        "thread-id": 1,
+        "socket-id": 1
+      },
+      "vcpus-count": 1,
+      "type": "qemu64-x86_64-cpu"
+    },
+    {
+      "props": {
+        "core-id": 1,
+        "thread-id": 0,
+        "socket-id": 1
+      },
+      "vcpus-count": 1,
+      "type": "qemu64-x86_64-cpu"
+    },
+    {
+      "props": {
+        "core-id": 0,
+        "thread-id": 1,
+        "socket-id": 1
+      },
+      "vcpus-count": 1,
+      "qom-path": "/machine/peripheral/vcpu5",
+      "type": "qemu64-x86_64-cpu"
+    },
+    {
+      "props": {
+        "core-id": 0,
+        "thread-id": 0,
+        "socket-id": 1
+      },
+      "vcpus-count": 1,
+      "qom-path": "/machine/unattached/device[5]",
+      "type": "qemu64-x86_64-cpu"
+    },
+    {
+      "props": {
+        "core-id": 1,
+        "thread-id": 1,
+        "socket-id": 0
+      },
+      "vcpus-count": 1,
+      "qom-path": "/machine/unattached/device[4]",
+      "type": "qemu64-x86_64-cpu"
+    },
+    {
+      "props": {
+        "core-id": 1,
+        "thread-id": 0,
+        "socket-id": 0
+      },
+      "vcpus-count": 1,
+      "qom-path": "/machine/unattached/device[3]",
+      "type": "qemu64-x86_64-cpu"
+    },
+    {
+      "props": {
+        "core-id": 0,
+        "thread-id": 1,
+        "socket-id": 0
+      },
+      "vcpus-count": 1,
+      "qom-path": "/machine/unattached/device[2]",
+      "type": "qemu64-x86_64-cpu"
+    },
+    {
+      "props": {
+        "core-id": 0,
+        "thread-id": 0,
+        "socket-id": 0
+      },
+      "vcpus-count": 1,
+      "qom-path": "/machine/unattached/device[0]",
+      "type": "qemu64-x86_64-cpu"
+    }
+  ],
+  "id": "libvirt-23"
+}
+
+{"execute":"query-cpus","id":"libvirt-5"}
+
+{
+  "return": [
+    {
+      "arch": "x86",
+      "current": true,
+      "CPU": 0,
+      "qom_path": "/machine/unattached/device[0]",
+      "pc": -2130415978,
+      "halted": true,
+      "thread_id": 518291
+    },
+    {
+      "arch": "x86",
+      "current": false,
+      "CPU": 1,
+      "qom_path": "/machine/unattached/device[2]",
+      "pc": -2130415978,
+      "halted": true,
+      "thread_id": 518292
+    },
+    {
+      "arch": "x86",
+      "current": false,
+      "CPU": 2,
+      "qom_path": "/machine/unattached/device[3]",
+      "pc": -2130415978,
+      "halted": true,
+      "thread_id": 518294
+    },
+    {
+      "arch": "x86",
+      "current": false,
+      "CPU": 3,
+      "qom_path": "/machine/unattached/device[4]",
+      "pc": -2130415978,
+      "halted": true,
+      "thread_id": 518295
+    },
+    {
+      "arch": "x86",
+      "current": false,
+      "CPU": 4,
+      "qom_path": "/machine/unattached/device[5]",
+      "pc": -2130415978,
+      "halted": true,
+      "thread_id": 518296
+    },
+    {
+      "arch": "x86",
+      "current": false,
+      "CPU": 5,
+      "qom_path": "/machine/peripheral/vcpu5",
+      "pc": -2130415978,
+      "halted": true,
+      "thread_id": 518297
+    }
+  ],
+  "id": "libvirt-22"
+}
+
+{
+    "execute": "device_add",
+    "arguments": {
+        "driver": "qemu64-x86_64-cpu",
+        "id": "vcpu6",
+        "socket-id": 1,
+        "core-id": 1,
+        "thread-id": 0
+    },
+    "id": "libvirt-6"
+}
+
+{"return": {}}
+
+{"execute":"query-hotpluggable-cpus","id":"libvirt-7"}
+
+{
+  "return": [
+    {
+      "props": {
+        "core-id": 1,
+        "thread-id": 1,
+        "socket-id": 1
+      },
+      "vcpus-count": 1,
+      "type": "qemu64-x86_64-cpu"
+    },
+    {
+      "props": {
+        "core-id": 1,
+        "thread-id": 0,
+        "socket-id": 1
+      },
+      "vcpus-count": 1,
+      "qom-path": "/machine/peripheral/vcpu6",
+      "type": "qemu64-x86_64-cpu"
+    },
+    {
+      "props": {
+        "core-id": 0,
+        "thread-id": 1,
+        "socket-id": 1
+      },
+      "vcpus-count": 1,
+      "qom-path": "/machine/peripheral/vcpu5",
+      "type": "qemu64-x86_64-cpu"
+    },
+    {
+      "props": {
+        "core-id": 0,
+        "thread-id": 0,
+        "socket-id": 1
+      },
+      "vcpus-count": 1,
+      "qom-path": "/machine/unattached/device[5]",
+      "type": "qemu64-x86_64-cpu"
+    },
+    {
+      "props": {
+        "core-id": 1,
+        "thread-id": 1,
+        "socket-id": 0
+      },
+      "vcpus-count": 1,
+      "qom-path": "/machine/unattached/device[4]",
+      "type": "qemu64-x86_64-cpu"
+    },
+    {
+      "props": {
+        "core-id": 1,
+        "thread-id": 0,
+        "socket-id": 0
+      },
+      "vcpus-count": 1,
+      "qom-path": "/machine/unattached/device[3]",
+      "type": "qemu64-x86_64-cpu"
+    },
+    {
+      "props": {
+        "core-id": 0,
+        "thread-id": 1,
+        "socket-id": 0
+      },
+      "vcpus-count": 1,
+      "qom-path": "/machine/unattached/device[2]",
+      "type": "qemu64-x86_64-cpu"
+    },
+    {
+      "props": {
+        "core-id": 0,
+        "thread-id": 0,
+        "socket-id": 0
+      },
+      "vcpus-count": 1,
+      "qom-path": "/machine/unattached/device[0]",
+      "type": "qemu64-x86_64-cpu"
+    }
+  ],
+  "id": "libvirt-23"
+}
+
+{"execute":"query-cpus","id":"libvirt-8"}
+
+{
+  "return": [
+    {
+      "arch": "x86",
+      "current": true,
+      "CPU": 0,
+      "qom_path": "/machine/unattached/device[0]",
+      "pc": -2130415978,
+      "halted": true,
+      "thread_id": 518291
+    },
+    {
+      "arch": "x86",
+      "current": false,
+      "CPU": 1,
+      "qom_path": "/machine/unattached/device[2]",
+      "pc": -2130415978,
+      "halted": true,
+      "thread_id": 518292
+    },
+    {
+      "arch": "x86",
+      "current": false,
+      "CPU": 2,
+      "qom_path": "/machine/unattached/device[3]",
+      "pc": -2130415978,
+      "halted": true,
+      "thread_id": 518294
+    },
+    {
+      "arch": "x86",
+      "current": false,
+      "CPU": 3,
+      "qom_path": "/machine/unattached/device[4]",
+      "pc": -2130415978,
+      "halted": true,
+      "thread_id": 518295
+    },
+    {
+      "arch": "x86",
+      "current": false,
+      "CPU": 4,
+      "qom_path": "/machine/unattached/device[5]",
+      "pc": -2130415978,
+      "halted": true,
+      "thread_id": 518296
+    },
+    {
+      "arch": "x86",
+      "current": false,
+      "CPU": 5,
+      "qom_path": "/machine/peripheral/vcpu5",
+      "pc": -2130415978,
+      "halted": true,
+      "thread_id": 518297
+    },
+    {
+      "arch": "x86",
+      "current": false,
+      "CPU": 6,
+      "qom_path": "/machine/peripheral/vcpu6",
+      "pc": -2130415978,
+      "halted": true,
+      "thread_id": 518298
+    }
+  ],
+  "id": "libvirt-22"
+}

diff --git a/tests/qemuhotplugtestcpus/x86-modern-bulk-result-conf.xml b/tests/qemuhotplugtestcpus/x86-modern-bulk-result-conf.xml
new file mode 100644 (file)
index 0000000..5c1d18b
--- /dev/null
+++ b/tests/qemuhotplugtestcpus/x86-modern-bulk-result-conf.xml
@@ -0,0 +1,40 @@
+<domain type='qemu'>
+  <name>QEMUGuest1</name>
+  <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+  <memory unit='KiB'>219100</memory>
+  <currentMemory unit='KiB'>219100</currentMemory>
+  <vcpu placement='static' current='7'>8</vcpu>
+  <vcpus>
+    <vcpu id='0' enabled='yes' hotpluggable='no'/>
+    <vcpu id='1' enabled='yes' hotpluggable='no'/>
+    <vcpu id='2' enabled='yes' hotpluggable='no'/>
+    <vcpu id='3' enabled='yes' hotpluggable='no'/>
+    <vcpu id='4' enabled='yes' hotpluggable='no'/>
+    <vcpu id='5' enabled='yes' hotpluggable='yes'/>
+    <vcpu id='6' enabled='yes' hotpluggable='yes'/>
+    <vcpu id='7' enabled='no' hotpluggable='yes'/>
+  </vcpus>
+  <os>
+    <type arch='x86_64' machine='pc'>hvm</type>
+    <boot dev='network'/>
+  </os>
+  <cpu>
+    <topology sockets='4' cores='2' threads='1'/>
+  </cpu>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>destroy</on_crash>
+  <devices>
+    <emulator>/usr/bin/qemu</emulator>
+    <controller type='usb' index='0'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
+    </controller>
+    <controller type='pci' index='0' model='pci-root'/>
+    <input type='mouse' bus='ps2'/>
+    <input type='keyboard' bus='ps2'/>
+    <memballoon model='virtio'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
+    </memballoon>
+  </devices>
+</domain>

diff --git a/tests/qemuhotplugtestcpus/x86-modern-bulk-result-live.xml b/tests/qemuhotplugtestcpus/x86-modern-bulk-result-live.xml
new file mode 100644 (file)
index 0000000..50fd9ea
--- /dev/null
+++ b/tests/qemuhotplugtestcpus/x86-modern-bulk-result-live.xml
@@ -0,0 +1,48 @@
+<domain type='qemu' id='7'>
+  <name>QEMUGuest1</name>
+  <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+  <memory unit='KiB'>219100</memory>
+  <currentMemory unit='KiB'>219100</currentMemory>
+  <vcpu placement='static' current='7'>8</vcpu>
+  <vcpus>
+    <vcpu id='0' enabled='yes' hotpluggable='no' order='1'/>
+    <vcpu id='1' enabled='yes' hotpluggable='no' order='2'/>
+    <vcpu id='2' enabled='yes' hotpluggable='no' order='3'/>
+    <vcpu id='3' enabled='yes' hotpluggable='no' order='4'/>
+    <vcpu id='4' enabled='yes' hotpluggable='no' order='5'/>
+    <vcpu id='5' enabled='yes' hotpluggable='yes' order='6'/>
+    <vcpu id='6' enabled='yes' hotpluggable='yes' order='7'/>
+    <vcpu id='7' enabled='no' hotpluggable='yes'/>
+  </vcpus>
+  <os>
+    <type arch='x86_64' machine='pc'>hvm</type>
+    <boot dev='network'/>
+  </os>
+  <cpu>
+    <topology sockets='4' cores='2' threads='1'/>
+  </cpu>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>destroy</on_crash>
+  <devices>
+    <emulator>/usr/bin/qemu</emulator>
+    <controller type='usb' index='0'>
+      <alias name='usb'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
+    </controller>
+    <controller type='pci' index='0' model='pci-root'>
+      <alias name='pci'/>
+    </controller>
+    <input type='mouse' bus='ps2'>
+      <alias name='input0'/>
+    </input>
+    <input type='keyboard' bus='ps2'>
+      <alias name='input1'/>
+    </input>
+    <memballoon model='virtio'>
+      <alias name='balloon0'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
+    </memballoon>
+  </devices>
+</domain>