On 5/13/21 12:45 PM, Michal Prívozník wrote:
On 5/13/21 11:53 AM, Andrea Bolognani wrote:
On Thu, May 13, 2021 at 11:39:24AM +0200, Michal Prívozník wrote:
On 5/12/21 6:11 PM, Andrea Bolognani wrote:
Overall looks reasonable, but comparing the computed capabilities
with those for QEMU 5.2 highlights a couple of changes that I'm not
so sure about, specifically
--- tests/qemucapabilitiesdata/caps_5.2.0.s390x.xml 2021-05-12
10:52:29.826021415 +0200
+++ tests/qemucapabilitiesdata/caps_6.0.0.s390x.xml 2021-05-12
17:39:47.778445212 +0200
@@ -87,7 +87,6 @@
<flag name='disk-share-rw'/>
<flag name='iscsi.password-secret'/>
<flag name='dump-completed'/>
- <flag name='virtio-gpu-ccw'/>
@@ -115,7 +114,6 @@
<flag name='iothread.poll-max-ns'/>
<flag name='egl-headless.rendernode'/>
<flag name='memory-backend-file.align'/>
- <flag name='memory-backend-file.pmem'/>
Because of the former I would expect the s390x-ccw-graphics xml2argv
test to fail, but it looks like we don't do a good job at validating
the <video> element and that QEMU_CAPS_DEVICE_VIRTIO_GPU_CCW in
particular is completely unused.
As for the latter there doesn't seem to be any test coverage outside
of x86_64, so perhaps it would be a good idea to look into that?
pmem was reported by QEMU even if it was later denied. This was fixed by:
https://gitlab.com/qemu-project/qemu/-/commit/def835f0da0d153b397071e6bb8f2b46f51f96b4
qemu.git $ git describe --contains def835f0da0d153b397071e6bb8f2b46f51f96b4
v6.0.0-rc0~77^2
Okay for the pmem part - it was reported as available on s390x even
though it probably never worked.
And it's the same story with virtio-gpu-ccw:
https://gitlab.com/qemu-project/qemu/-/commit/adcf33a504de29feb720736051dc32889314c9e6
qemu.git $ git describe --contains adcf33a504de29feb720736051dc32889314c9e6
v6.0.0-rc1~5^2~1
But virtio-gpu-ccw surely should be reported as available on s390x?
Perhaps I'm missing something obvious in the commit you pointed me
to and I should grab another coffee :)
I admit, I don't know. I thought that virtio-gpu was also misleadingly
reported as supported. But as you pointed out it's not the case.
Shalini, can you chime in?
Hello Michal, Andrea,
Thank you for the review. I am working on resolving the "virtio-gpu-ccw"
availability.
Michal
--
Kind regards
Shalini Chellathurai Saroja
Linux on Z and Virtualization Development
Vorsitzende des Aufsichtsrats: Gregor Pillen
Geschäftsführung: Dirk Wittkopp
Sitz der Gesellschaft: Böblingen
Registergericht: Amtsgericht Stuttgart, HRB 243294
