tests: check CPU features handling in libxl driver

Test enabling/disabling individual CPU features and also setting
nested HVM support, which is also controlled by CPU features node.

Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Reviewed-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>

tests/libxlxml2domconfigdata/fullvirt-cpuid.json

@@ -0,0 +1,60 @@
+{
+    "c_info": {
+        "type": "hvm",
+        "name": "XenGuest2",
+        "uuid": "c7a5fdb2-cdaf-9455-926a-d65c16db1809"
+    },
+    "b_info": {
+        "max_vcpus": 1,
+        "avail_vcpus": [
+            0
+        ],
+        "max_memkb": 592896,
+        "target_memkb": 403456,
+        "shadow_memkb": 5656,
+        "cpuid": [
+            {
+                "leaf": 1,
+                "ecx": "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx0",
+                "edx": "xxxxxxxxxxxxxxxxxxxxxxxxxxx1xxxx"
+            }
+        ],
+        "sched_params": {
+        },
+        "type.hvm": {
+            "pae": "True",
+            "apic": "True",
+            "acpi": "True",
+            "nested_hvm": "False",
+            "nographic": "True",
+            "vnc": {
+                "enable": "False"
+            },
+            "sdl": {
+                "enable": "False"
+            },
+            "spice": {
+
+            },
+            "boot": "c",
+            "rdm": {
+
+            }
+        },
+        "arch_arm": {
+
+        }
+    },
+    "disks": [
+        {
+            "pdev_path": "/dev/HostVG/XenGuest2",
+            "vdev": "hda",
+            "backend": "phy",
+            "format": "raw",
+            "removable": 1,
+            "readwrite": 1
+        }
+    ],
+    "on_reboot": "restart",
+    "on_crash": "restart"
+}

tests/libxlxml2domconfigdata/fullvirt-cpuid.xml

@@ -0,0 +1,34 @@
+<domain type='xen'>
+  <name>XenGuest2</name>
+  <uuid>c7a5fdb2-cdaf-9455-926a-d65c16db1809</uuid>
+  <memory unit='KiB'>592896</memory>
+  <currentMemory unit='KiB'>403456</currentMemory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <type arch='x86_64' machine='xenfv'>hvm</type>
+  </os>
+  <features>
+    <acpi/>
+    <apic/>
+    <pae/>
+  </features>
+  <cpu mode='host-passthrough'>
+    <feature policy='forbid' name='pni'/>
+    <feature policy='forbid' name='vmx'/>
+    <feature policy='require' name='tsc'/>
+  </cpu>
+  <clock offset='variable' adjustment='0' basis='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>restart</on_crash>
+  <devices>
+    <disk type='block' device='disk'>
+      <driver name='phy' type='raw'/>
+      <source dev='/dev/HostVG/XenGuest2'/>
+      <target dev='hda' bus='ide'/>
+      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
+    </disk>
+    <input type='mouse' bus='ps2'/>
+    <input type='keyboard' bus='ps2'/>
+  </devices>
+</domain>

tests/libxlxml2domconfigtest.c

@@ -209,6 +209,7 @@ mymain(void)
     DO_TEST("moredevs-hvm");
     DO_TEST("vnuma-hvm");
     DO_TEST("multiple-ip");
+    DO_TEST("fullvirt-cpuid");
 
     return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
 }