[libvirt] [PATCH] qemu: enable multifunction for older qemu

[Eric Blake]

On 10/05/2011 09:10 PM, Wen Congyang wrote:
> At 10/06/2011 05:52 AM, Eric Blake Write:
>> Now that RHEL 6.2 Beta is out, it would be nice to test multifunction
>> devices on that platform.  This changes things so that the multifunction
>> cap bit can be set in two different ways: by version comparison (needed
>> for qemu 0.13 which lacked a -device query), and by -device query
>> (provided by qemu.git and backported to the RHEL beta build of
>> qemu-kvm which still claims to be a modified 0.12, and therefore needed
>> for RHEL).
>>

>> +++ b/src/qemu/qemu_capabilities.c
>> @@ -1264,6 +1264,8 @@ qemuCapsParseDeviceStr(const char *str, virBitmapPtr flags)
>>       /* Features of given devices. */
>>       if (strstr(str, "pci-assign.configfd"))
>>           qemuCapsSet(flags, QEMU_CAPS_PCI_CONFIGFD);
>> +    if (strstr(str, "pci-assign.multifunction"))
>> +        qemuCapsSet(flags, QEMU_CAPS_PCI_MULTIFUNCTION);
>
> Only qemu-kvm has pci-assign, so I think it is better to check 'virtio-blk-pci.multifunction'.

Good point.  I've made that adjustment, and pushed.

-- 
Eric Blake   eblake at redhat.com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org