virt-install: add a new guest feature GIC for ARM guests

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1334857

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>

man/virt-install.pod

@@ -254,6 +254,11 @@ Allow the KVM hypervisor signature to be hidden from the guest
 
 Notify the guest that the host supports paravirtual spinlocks for example by exposing the pvticketlocks mechanism.
 
+=item B<--features gic_version=2>
+
+This is relevant only for ARM architectures. Possible values are "host" or
+version number.
+
 =back
 
 Use --features=? to see a list of all available sub options. Complete details at L<http://libvirt.org/formatdomain.html#elementsFeatures>

tests/cli-test-xml/compare/virt-install-aarch64-kvm-gic.xml

@@ -0,0 +1,33 @@
+<domain type="kvm">
+  <name>foobar</name>
+  <uuid>00000000-1111-2222-3333-444444444444</uuid>
+  <memory>65536</memory>
+  <currentMemory>65536</currentMemory>
+  <vcpu>1</vcpu>
+  <os>
+    <type arch="aarch64" machine="virt">hvm</type>
+    <loader readonly="yes" type="pflash">/usr/share/AAVMF/AAVMF_CODE.fd</loader>
+    <boot dev="hd"/>
+  </os>
+  <features>
+    <gic version="host"/>
+  </features>
+  <cpu mode="host-passthrough"/>
+  <clock offset="utc"/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>restart</on_crash>
+  <devices>
+    <emulator>/usr/bin/qemu-system-aarch64</emulator>
+    <interface type="bridge">
+      <source bridge="eth0"/>
+      <mac address="00:11:22:33:44:55"/>
+      <model type="virtio"/>
+    </interface>
+    <console type="pty"/>
+    <channel type="unix">
+      <source mode="bind"/>
+      <target type="virtio" name="org.qemu.guest_agent.0"/>
+    </channel>
+  </devices>
+</domain>

tests/clitest.py

@@ -711,6 +711,7 @@ c.add_compare("--arch aarch64 --machine virt --boot kernel=/f19-arm.kernel,initr
 c.add_compare("--arch aarch64 --boot kernel=/f19-arm.kernel,initrd=/f19-arm.initrd,kernel_args=\"console=ttyAMA0,1234 rw root=/dev/vda3\",extra_args=foo --disk %(EXISTIMG1)s", "aarch64-machdefault")
 c.add_compare("--arch aarch64 --cdrom %(EXISTIMG2)s --boot loader=CODE.fd,nvram_template=VARS.fd --disk %(EXISTIMG1)s --cpu none --events on_crash=preserve,on_reboot=destroy,on_poweroff=restart", "aarch64-cdrom")
 c.add_compare("--connect %(URI-KVM-AARCH64)s --disk %(EXISTIMG1)s --import --os-variant fedora21", "aarch64-kvm-import")
+c.add_compare("--connect %(URI-KVM-AARCH64)s --disk none --os-variant fedora23 --features gic_version=host", "aarch64-kvm-gic")
 
 # ppc64 tests
 c.add_compare("--arch ppc64 --machine pseries --boot network --disk %(EXISTIMG1)s --disk device=cdrom --os-variant fedora20 --network none", "ppc64-pseries-f20")

virtinst/cli.py

@@ -1545,6 +1545,8 @@ class ParserFeatures(VirtCLIParser):
         self.set_param("kvm_hidden", "kvm_hidden", is_onoff=True)
         self.set_param("pvspinlock", "pvspinlock", is_onoff=True)
 
+        self.set_param("gic_version", "gic_version")
+
 
 ###################
 # --clock parsing #