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[libvirt] [PATCH 8/8] qemu: Default to video type=virtio for machvirt

Cole Robinson posted 8 patches 7 years, 10 months ago
There is a newer version of this series
[libvirt] [PATCH 8/8] qemu: Default to video type=virtio for machvirt
Posted by Cole Robinson 7 years, 10 months ago 
arm/aarch64 -M virt on KVM doesn't and will never work with standard
VGA card emulation. The recommended method is to use type=virtio, so
let's make it the default for video devices without an explicit type
set by the user

https://bugzilla.redhat.com/show_bug.cgi?id=1404112
Signed-off-by: Cole Robinson <crobinso@redhat.com>
---
 src/qemu/qemu_domain.c                             |  2 +
 .../qemuxml2argv-aarch64-video-default.args        | 24 +++++++++++
 .../qemuxml2argv-aarch64-video-default.xml         | 17 ++++++++
 tests/qemuxml2argvtest.c                           |  6 +++
 .../qemuxml2xmlout-aarch64-video-default.xml       | 46 ++++++++++++++++++++++
 tests/qemuxml2xmltest.c                            |  6 +++
 6 files changed, 101 insertions(+)
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-aarch64-video-default.args
 create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-aarch64-video-default.xml
 create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-aarch64-video-default.xml

diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index b41b3c5cc..69bf1cb94 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -3584,6 +3584,8 @@ qemuDomainDeviceDefPostParse(virDomainDeviceDefPtr dev,
         if (dev->data.video->type == VIR_DOMAIN_VIDEO_TYPE_DEFAULT) {
             if ARCH_IS_PPC64(def->os.arch)
                 dev->data.video->type = VIR_DOMAIN_VIDEO_TYPE_VGA;
+            else if (qemuDomainIsVirt(def))
+                dev->data.video->type = VIR_DOMAIN_VIDEO_TYPE_VIRTIO;
             else
                 dev->data.video->type = VIR_DOMAIN_VIDEO_TYPE_CIRRUS;
         }
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-aarch64-video-default.args b/tests/qemuxml2argvdata/qemuxml2argv-aarch64-video-default.args
new file mode 100644
index 000000000..8e56c4250
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-aarch64-video-default.args
@@ -0,0 +1,24 @@
+LC_ALL=C \
+PATH=/bin \
+HOME=/home/test \
+USER=test \
+LOGNAME=test \
+QEMU_AUDIO_DRV=none \
+/usr/bin/qemu-system-aarch64 \
+-name aarch64-vgpu \
+-S \
+-M virt \
+-cpu cortex-a57 \
+-m 1024 \
+-smp 1,sockets=1,cores=1,threads=1 \
+-uuid f3197c89-6457-44fe-b26d-897090ba6541 \
+-nodefconfig \
+-nodefaults \
+-monitor unix:/tmp/lib/domain--1-aarch64-vgpu/monitor.sock,server,nowait \
+-no-acpi \
+-boot c \
+-device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1 \
+-device pci-bridge,chassis_nr=2,id=pci.2,bus=pci.1,addr=0x0 \
+-device ioh3420,port=0x10,chassis=3,id=pci.3,bus=pcie.0,addr=0x2 \
+-vnc 127.0.0.1:0 \
+-device virtio-gpu-pci,id=video0,bus=pci.2,addr=0x1
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-aarch64-video-default.xml b/tests/qemuxml2argvdata/qemuxml2argv-aarch64-video-default.xml
new file mode 100644
index 000000000..bc4ea48f0
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-aarch64-video-default.xml
@@ -0,0 +1,17 @@
+<domain type='qemu'>
+  <name>aarch64-vgpu</name>
+  <uuid>f3197c89-6457-44fe-b26d-897090ba6541</uuid>
+  <memory unit='KiB'>1048576</memory>
+  <currentMemory unit='KiB'>1048576</currentMemory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <type arch='aarch64' machine='virt'>hvm</type>
+  </os>
+  <cpu mode='custom' match='exact'>
+    <model fallback='allow'>cortex-a57</model>
+  </cpu>
+  <devices>
+    <emulator>/usr/bin/qemu-system-aarch64</emulator>
+    <graphics type='vnc'/>
+  </devices>
+</domain>
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index 27eea70ae..ed7b004cf 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -2243,6 +2243,12 @@ mymain(void)
             QEMU_CAPS_DEVICE_PCI_BRIDGE, QEMU_CAPS_DEVICE_IOH3420,
             QEMU_CAPS_PCI_MULTIFUNCTION, QEMU_CAPS_DEVICE_VIDEO_PRIMARY,
             QEMU_CAPS_DEVICE_VIRTIO_GPU, QEMU_CAPS_BOOTINDEX);
+    DO_TEST("aarch64-video-default",
+            QEMU_CAPS_NODEFCONFIG, QEMU_CAPS_OBJECT_GPEX,
+            QEMU_CAPS_DEVICE_PCI_BRIDGE, QEMU_CAPS_DEVICE_IOH3420,
+            QEMU_CAPS_PCI_MULTIFUNCTION, QEMU_CAPS_DEVICE_VIDEO_PRIMARY,
+            QEMU_CAPS_DEVICE_VIRTIO_GPU, QEMU_CAPS_DEVICE_DMI_TO_PCI_BRIDGE,
+            QEMU_CAPS_VNC);
     DO_TEST("aarch64-aavmf-virtio-mmio",
             QEMU_CAPS_NODEFCONFIG, QEMU_CAPS_DTB,
             QEMU_CAPS_DEVICE_VIRTIO_MMIO,
diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-aarch64-video-default.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-aarch64-video-default.xml
new file mode 100644
index 000000000..47b46d0d0
--- /dev/null
+++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-aarch64-video-default.xml
@@ -0,0 +1,46 @@
+<domain type='qemu'>
+  <name>aarch64-vgpu</name>
+  <uuid>f3197c89-6457-44fe-b26d-897090ba6541</uuid>
+  <memory unit='KiB'>1048576</memory>
+  <currentMemory unit='KiB'>1048576</currentMemory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <type arch='aarch64' machine='virt'>hvm</type>
+    <boot dev='hd'/>
+  </os>
+  <features>
+    <gic version='2'/>
+  </features>
+  <cpu mode='custom' match='exact' check='none'>
+    <model fallback='allow'>cortex-a57</model>
+  </cpu>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>destroy</on_crash>
+  <devices>
+    <emulator>/usr/bin/qemu-system-aarch64</emulator>
+    <controller type='pci' index='0' model='pcie-root'/>
+    <controller type='pci' index='1' model='dmi-to-pci-bridge'>
+      <model name='i82801b11-bridge'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
+    </controller>
+    <controller type='pci' index='2' model='pci-bridge'>
+      <model name='pci-bridge'/>
+      <target chassisNr='2'/>
+      <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
+    </controller>
+    <controller type='pci' index='3' model='pcie-root-port'>
+      <model name='ioh3420'/>
+      <target chassis='3' port='0x10'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
+    </controller>
+    <graphics type='vnc' port='-1' autoport='yes'>
+      <listen type='address'/>
+    </graphics>
+    <video>
+      <model type='virtio' heads='1' primary='yes'/>
+      <address type='pci' domain='0x0000' bus='0x02' slot='0x01' function='0x0'/>
+    </video>
+  </devices>
+</domain>
diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c
index 13072996c..ade8d9300 100644
--- a/tests/qemuxml2xmltest.c
+++ b/tests/qemuxml2xmltest.c
@@ -1073,6 +1073,12 @@ mymain(void)
             QEMU_CAPS_DEVICE_PCI_BRIDGE, QEMU_CAPS_DEVICE_IOH3420,
             QEMU_CAPS_PCI_MULTIFUNCTION, QEMU_CAPS_DEVICE_VIDEO_PRIMARY,
             QEMU_CAPS_DEVICE_VIRTIO_GPU, QEMU_CAPS_BOOTINDEX);
+    DO_TEST("aarch64-video-default",
+            QEMU_CAPS_NODEFCONFIG, QEMU_CAPS_OBJECT_GPEX,
+            QEMU_CAPS_DEVICE_PCI_BRIDGE, QEMU_CAPS_DEVICE_IOH3420,
+            QEMU_CAPS_PCI_MULTIFUNCTION, QEMU_CAPS_DEVICE_VIDEO_PRIMARY,
+            QEMU_CAPS_DEVICE_VIRTIO_GPU, QEMU_CAPS_DEVICE_DMI_TO_PCI_BRIDGE,
+            QEMU_CAPS_VNC);
 
     DO_TEST_FULL("aarch64-gic-none", WHEN_BOTH, GIC_NONE, NONE);
     DO_TEST_FULL("aarch64-gic-none-v2", WHEN_BOTH, GIC_V2, NONE);
-- 
2.13.0

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Re: [libvirt] [PATCH 8/8] qemu: Default to video type=virtio for machvirt
Posted by John Ferlan 7 years, 10 months ago 

On 06/28/2017 02:49 PM, Cole Robinson wrote:
> arm/aarch64 -M virt on KVM doesn't and will never work with standard
> VGA card emulation. The recommended method is to use type=virtio, so
> let's make it the default for video devices without an explicit type
> set by the user
> 
> https://bugzilla.redhat.com/show_bug.cgi?id=1404112
> Signed-off-by: Cole Robinson <crobinso@redhat.com>
> ---
>  src/qemu/qemu_domain.c                             |  2 +
>  .../qemuxml2argv-aarch64-video-default.args        | 24 +++++++++++
>  .../qemuxml2argv-aarch64-video-default.xml         | 17 ++++++++
>  tests/qemuxml2argvtest.c                           |  6 +++
>  .../qemuxml2xmlout-aarch64-video-default.xml       | 46 ++++++++++++++++++++++
>  tests/qemuxml2xmltest.c                            |  6 +++
>  6 files changed, 101 insertions(+)
>  create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-aarch64-video-default.args
>  create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-aarch64-video-default.xml
>  create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-aarch64-video-default.xml
> 

I could not git am -3 this one, but it's fairly straightforward.

Reviewed-by: John Ferlan <jferlan@redhat.com>

John

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