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graphic: 0.911
device: 0.845
performance: 0.613
network: 0.610
PID: 0.600
semantic: 0.555
vnc: 0.421
permissions: 0.397
debug: 0.357
files: 0.354
socket: 0.352
other: 0.348
boot: 0.326
KVM: 0.243
virtgpu does not return error for misconfigured virgl command
Description of problem:
When ```virgl_renderer_submit_cmd``` reports error, cmd->error should be set. Otherwise driver cannot know if there is error.
https://gitlab.com/qemu-project/qemu/-/blob/master/hw/display/virtio-gpu-virgl.c?ref_type=heads#L233
Probably 0x1200 (unspec) or 0x1205 (invalid param) should return as error.
If there is problem in cmd virgl freezes drawing window.
Steps to reproduce:
1. Send misformated command to virgl over vgpu device
2.
3.
Additional information:
Misformated 3d commands stops opengl's drawings. Without returning error we cannot know any error, hence we cannot reset vgpu.
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