Re: [PATCH 5/5] tests: Tests for virtio-vga-gl and virtio-gpu-gl-pci device

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On 6/9/21 5:08 AM, Han Han wrote:
> On Tue, Jun 8, 2021 at 10:14 PM Michal Prívozník <mprivozn@xxxxxxxxxx>
> wrote:
> 
>> On 6/8/21 3:15 AM, Han Han wrote:
>>> Signed-off-by: Han Han <hhan@xxxxxxxxxx>
>>> ---
>>>  .../video-virtio-vga-gpu-gl.args              | 29 +++++++++++++
>>>  .../video-virtio-vga-gpu-gl.xml               | 34 +++++++++++++++
>>>  tests/qemuxml2argvtest.c                      |  6 +++
>>>  .../video-virtio-vga-gpu-gl.xml               | 43 +++++++++++++++++++
>>>  tests/qemuxml2xmltest.c                       |  6 +++
>>>  5 files changed, 118 insertions(+)
>>>  create mode 100644 tests/qemuxml2argvdata/video-virtio-vga-gpu-gl.args
>>>  create mode 100644 tests/qemuxml2argvdata/video-virtio-vga-gpu-gl.xml
>>>  create mode 100644 tests/qemuxml2xmloutdata/video-virtio-vga-gpu-gl.xml
>>>
>>> diff --git a/tests/qemuxml2argvdata/video-virtio-vga-gpu-gl.args
>> b/tests/qemuxml2argvdata/video-virtio-vga-gpu-gl.args
>>> new file mode 100644
>>> index 0000000000..72e04f3c3e
>>> --- /dev/null
>>> +++ b/tests/qemuxml2argvdata/video-virtio-vga-gpu-gl.args
>>> @@ -0,0 +1,29 @@
>>> +LC_ALL=C \
>>> +PATH=/bin \
>>> +HOME=/tmp/lib/domain--1-QEMUGuest1 \
>>> +USER=test \
>>> +LOGNAME=test \
>>> +XDG_DATA_HOME=/tmp/lib/domain--1-QEMUGuest1/.local/share \
>>> +XDG_CACHE_HOME=/tmp/lib/domain--1-QEMUGuest1/.cache \
>>> +XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
>>> +QEMU_AUDIO_DRV=none \
>>> +/usr/bin/qemu-system-x86_64 \
>>> +-name QEMUGuest1 \
>>> +-S \
>>> +-machine pc,accel=tcg,usb=off,dump-guest-core=off \
>>> +-m 1024 \
>>> +-realtime mlock=off \
>>> +-smp 1,sockets=1,cores=1,threads=1 \
>>> +-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
>>> +-display none \
>>> +-no-user-config \
>>> +-nodefaults \
>>> +-chardev
>> socket,id=charmonitor,path=/tmp/lib/domain--1-QEMUGuest1/monitor.sock,server=on,wait=off
>> \
>>> +-mon chardev=charmonitor,id=monitor,mode=control \
>>> +-rtc base=utc \
>>> +-no-shutdown \
>>> +-no-acpi \
>>> +-usb \
>>> +-device virtio-vga-gl,id=video0,bus=pci.0,addr=0x2 \
>>> +-device virtio-gpu-gl-pci,id=video1,bus=pci.0,addr=0x4 \
>>> +-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3
>>> diff --git a/tests/qemuxml2argvdata/video-virtio-vga-gpu-gl.xml
>> b/tests/qemuxml2argvdata/video-virtio-vga-gpu-gl.xml
>>> new file mode 100644
>>> index 0000000000..40e68fc458
>>> --- /dev/null
>>> +++ b/tests/qemuxml2argvdata/video-virtio-vga-gpu-gl.xml
>>> @@ -0,0 +1,34 @@
>>> +<domain type='qemu'>
>>> +  <name>QEMUGuest1</name>
>>> +  <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
>>> +  <memory unit='KiB'>1048576</memory>
>>> +  <currentMemory unit='KiB'>1048576</currentMemory>
>>> +  <vcpu placement='static'>1</vcpu>
>>> +  <os>
>>> +    <type arch='x86_64' machine='pc'>hvm</type>
>>> +    <boot dev='hd'/>
>>> +  </os>
>>> +  <clock offset='utc'/>
>>> +  <on_poweroff>destroy</on_poweroff>
>>> +  <on_reboot>restart</on_reboot>
>>> +  <on_crash>destroy</on_crash>
>>> +  <devices>
>>> +    <emulator>/usr/bin/qemu-system-x86_64</emulator>
>>> +    <controller type='ide' index='0'/>
>>> +    <controller type='usb' index='0'/>
>>> +    <controller type='pci' index='0' model='pci-root'/>
>>> +    <input type='mouse' bus='ps2'/>
>>> +    <input type='keyboard' bus='ps2'/>
>>> +    <video>
>>> +      <model type='virtio' heads='1' primary='yes'>
>>> +        <acceleration accel3d='yes'/>
>>> +      </model>
>>> +    </video>
>>> +    <video>
>>> +      <model type='virtio' heads='1'>
>>> +        <acceleration accel3d='yes'/>
>>> +      </model>
>>> +    </video>
>>> +    <memballoon model='virtio'/>
>>> +  </devices>
>>> +</domain>
>>> diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
>>> index f9ec81eb8e..99fe7ac115 100644
>>> --- a/tests/qemuxml2argvtest.c
>>> +++ b/tests/qemuxml2argvtest.c
>>> @@ -2501,6 +2501,12 @@ mymain(void)
>>>              QEMU_CAPS_DEVICE_VIRTIO_GPU,
>>>              QEMU_CAPS_DEVICE_VIRTIO_VGA,
>>>              QEMU_CAPS_VIRTIO_GPU_MAX_OUTPUTS);
>>> +    DO_TEST("video-virtio-vga-gpu-gl",
>>> +            QEMU_CAPS_DEVICE_VIRTIO_GPU,
>>> +            QEMU_CAPS_DEVICE_VIRTIO_VGA,
>>> +            QEMU_CAPS_VIRTIO_GPU_VIRGL,
>>> +            QEMU_CAPS_VIRTIO_GPU_GL_PCI,
>>> +            QEMU_CAPS_VIRTIO_VGA_GL);
>>
>> Any reason for not using DO_TEST_CAPS_LATEST()?
>>
> I tried  DO_TEST_CAPS_LATEST(), but as I remembered, it reported an error
> "3d acceleration is not supported" when running tests. That looks
> like QEMU_CAPS_VIRTIO_GPU_VIRGL is missing in DO_TEST_CAPS_LATEST()

Of course it is! That is the whole point of the gilab issue. Previously
QEMU had -device virtio-*,virgl=on  but now they promoted virgl into a
device and thus they have -device virtio-*-gl-* (which then no longer
has/needs virgl attribute)

The QEMU_CAPS_VIRTIO_GPU_VIRGL capability checks, whether virgl
attribute is present. It won't be with these new devices.

> 
> I will try DO_TEST_CAPS_LATEST() again to see if it will happen
> 
>>
>>>      DO_TEST_CAPS_LATEST("video-bochs-display-device");
>>>      DO_TEST_CAPS_LATEST("video-ramfb-display-device");
>>>
>> DO_TEST_CAPS_LATEST_PARSE_ERROR("video-ramfb-display-device-pci-address");
>>> diff --git a/tests/qemuxml2xmloutdata/video-virtio-vga-gpu-gl.xml
>> b/tests/qemuxml2xmloutdata/video-virtio-vga-gpu-gl.xml
>>> new file mode 100644
>>> index 0000000000..618d70c635
>>> --- /dev/null
>>> +++ b/tests/qemuxml2xmloutdata/video-virtio-vga-gpu-gl.xml
>>
>> This output XML differs from the input XML only in unimportant details
>> (e.g. PCI addresses computed for <controller/>-s). Can those changes be
>> made to the input XML and this be just a symlink to the input XML?
>>
> Yes. Because of no updates on xml formatting codes, I think it is OK to
> create a symlink of input xml
> for the output xml.

Exactly. We don't need to check if parser/post parse callback fills in
some missing info.

Michal




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