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Re: [libvirt] [PATCH 1/3] qemu: new vnc display sharing policy caps flag

On 05/07/2013 01:51 AM, Ján Tomko wrote:
> On 05/06/2013 03:19 PM, Guannan Ren wrote:

Huh?  qemu is at 1.5, not 1.10.  Based on your code, you meant 1.1.

>> -    if (version >= 1001000)
>> +    if (version >= 1001000) {
>>          virQEMUCapsSet(qemuCaps, QEMU_CAPS_IPV6_MIGRATION);
>> +        virQEMUCapsSet(qemuCaps, QEMU_CAPS_VNC_DISPLAY_POLICY);
>> +    }
>>      if (version >= 1002000)
>>          virQEMUCapsSet(qemuCaps, QEMU_CAPS_DEVICE_VIDEO_PRIMARY);
> Is there a help string we could look for instead of setting it based on version?

Yuck - it looks like neither 1.1 nor 1.2 exposed this information in
their -help output (at least, based on tests/qemuhelpdata contents).  I
don't see any -device probing we can do either.  Even with the new
query-command-line-options in qemu 1.5-rc1 (hmm, my patch series is
still pending[1]), I get an error trying to do

{"error": {"class": "GenericError", "desc": "invalid option name: vnc"}}

I think we are indeed stuck with a hard-coded version probe, which is
annoying for backport purposes.

[1] https://www.redhat.com/archives/libvir-list/2013-April/msg01968.html

Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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