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

[Eric Blake]

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?

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

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