Re: [QUESTION]: vhost-user-gpu: Unable to find a satisfying vhost-user-gpu

[Marc-André Lureau]

Hi

On Wed, May 27, 2020 at 11:18 AM Jun Piao <address@hidden> wrote:

Hi Marc-André,

I encounter a problem when trying to use vhost-user-gpu as below. And
I'm not familiar to the libvirt code. Could you please help find out
the reason?

# virsh create snap1.xml
error: Failed to create domain from snap1.xml
error: operation failed: Unable to find a satisfying vhost-user-gpu

Libvirt implements the logic described in: https://git.qemu.org/?p=qemu.git;a=blob;f=docs/interop/vhost-user.json;h=ef8ac5941f5c8d14402566a984a0a0876d768c19;hb=HEAD#l171

Check if you have  /usr/share/qemu/vhost-user/50-qemu-gpu.json and if the binary location is correct.

If it fails after that, enable libvirt debugging for more details.

hope that helps

qemu-4.1.1:
  # ./vhost-user-gpu -v -s /home/vgpu.sock -r /dev/dri/renderD128

libvirt-5.8.0:
    <graphics type='spice' port='5901' tlsPort='5903' autoport='yes'>
      <listen type='socket' socket='/tmp/spice.socket1'/>
      <gl enable='yes' rendernode='/dev/dri/renderD128'/>
    </graphics>
    <video model='virtio'>
      <driver name='vhostuser'/>
      <acceleration accel3d='yes' rendernode='/dev/dri/renderD128'/>
    </video>

thanks,
Jun

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Marc-André Lureau