Re: [libvirt-users] NUMA VM and assigning interfaces
On 11/21/2016 04:48 PM, Amir Shehata wrote:
Laine,
Thank you for your response.
I did use the numa element instead of using qemu commandline and that
worked:
16 <cpu mode='custom' match='exact'>
...
34 <numa>
35 <cell id='0' cpus='0-1' memory='1048576'
unit='KiB'/>
36 <cell id='1' cpus='2-3' memory='1048576'
unit='KiB'/>
37 </numa>
38 </cpu>
However, whenever I try to use the pci-expander-bus I get:
error: XML document failed to validate against schema: Unable to
validate doc against /usr/share/libvirt/schemas/domain.rng
Extra element devices in interleave
Element domain failed to validate content
Sorry, I forgot to mention that pci-expander-bus is a fairly recent
addition to libvirt and qemu. For libvirt support of that controller,
you'll need at least libvirt 1.3.4, and qemu 2.4.0. Anything earlier
than that and the guest OS won't have any visibility to the NUMA node of
specific devices.
I tried the following
93 <controller type='pci' index='1'
model='pci-expander-bus'>
94 <address type='pci' domain='0x0000' bus='0x00'
slot='0x0b'
function='0x0'/>
95 </controller>
and
93 <controller type='pci' index='1'
model='pci-expander-bus'>
94 <target busNr='254'>
95 <node>1</node>
96 </target>
97 <address type='pci' domain='0x0000' bus='0x00'
slot='0x0b'
function='0x0'/>
98 </controller>
I got the syntax from:
https://www.redhat.com/archives/libvir-list/2016-March/msg01224.html
Just to give you a bit more info. This is running on:
Linux ashehata-DellPE 3.19.0-51-generic #58-Ubuntu SMP Fri Feb 26
21:22:26 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
below is a dump of the working XML file I'm using
I notice you don't have any device with pci bus='1'. I'm assuming you
just hadn't gotten to that part of the experiment yet, correct?