[libvirt] [PATCH 1/1] Enable QEMU_CAPS_PCI_MULTIBUS capability for QEMU2.0 forward.

[Li Zhang]

On 2014年04月09日 11:20, Eric Blake wrote:
> On 04/08/2014 08:03 PM, Li Zhang wrote:
>> From: Li Zhang <zhlcindy at linux.vnet.ibm.com>
>>
>> For QEMU2.0 forward version, it supports PCI multiBUS.
>> Currently, libvirt still disables it which causes an error
>> "Bus 'pci' not found".
>>
>> Signed-off-by: Li Zhang <zhlcindy at linux.vnet.ibm.com>
>> ---
>>   src/qemu/qemu_capabilities.c | 3 +++
>>   1 file changed, 3 insertions(+)
>>
>> diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
>> index 2c8ec10..b49398f 100644
>> --- a/src/qemu/qemu_capabilities.c
>> +++ b/src/qemu/qemu_capabilities.c
>> @@ -3019,6 +3019,9 @@ virQEMUCapsInitQMPMonitor(virQEMUCapsPtr qemuCaps,
>>       if (qemuCaps->version >= 1006000)
>>           virQEMUCapsSet(qemuCaps, QEMU_CAPS_DEVICE_VIDEO_PRIMARY);
>>   
>> +    if (qemuCaps->version >= 2000000)
>> +        virQEMUCapsSet(qemuCaps, QEMU_CAPS_PCI_MULTIBUS);
>> +
> This is a version number check, which is bad.  Is there a QMP command we
> can issue that gives a more reliable answer of whether the feature is
> present?
>
Hi Eric,

I can't find any QMP command for MULTIBUS in QEMU.
There is only one "query-pci" to list PCI bus and devices information.

Thanks.