Re: [Qemu-devel] [PATCH v9] Allow setting NUMA distance for different NUMA nodes

[Igor Mammedov <imammedo@redhat.com>]

On Thu, 27 Apr 2017 16:05:42 +0200
Markus Armbruster <armbru@redhat.com> wrote:

> Igor Mammedov <imammedo@redhat.com> writes:
> 
> > On Thu, 27 Apr 2017 07:54:31 -0500
> > Eric Blake <eblake@redhat.com> wrote:
> >  
> >> On 04/26/2017 09:35 PM, He Chen wrote:  
> >> > This patch is going to add SLIT table support in QEMU, and provides
> >> > additional option `dist` for command `-numa` to allow user set vNUMA
> >> > distance by QEMU command.
> >> > 
> >> > With this patch, when a user wants to create a guest that contains
> >> > several vNUMA nodes and also wants to set distance among those nodes,
> >> > the QEMU command would like:
> >> > 
> >> > ```
> >> > -numa node,nodeid=0,cpus=0 \
> >> > -numa node,nodeid=1,cpus=1 \
> >> > -numa node,nodeid=2,cpus=2 \
> >> > -numa node,nodeid=3,cpus=3 \
> >> > -numa dist,src=0,dst=1,val=21 \
> >> > -numa dist,src=0,dst=2,val=31 \
> >> > -numa dist,src=0,dst=3,val=41 \
> >> > -numa dist,src=1,dst=2,val=21 \
> >> > -numa dist,src=1,dst=3,val=31 \
> >> > -numa dist,src=2,dst=3,val=21 \
> >> > ```
> >> > 
> >> > Signed-off-by: He Chen <he.chen@linux.intel.com>
> >> > 
> >> > ---
> >> > Changes since v8:
> >> > * numa_{node, distance}_parse --> parse_numa_{node, distance}
> >> > * Comments refinement.    
> >> 
> >>   
> >> > ---
> >> >  hw/acpi/aml-build.c         |  26 +++++++++
> >> >  hw/i386/acpi-build.c        |   4 ++
> >> >  include/hw/acpi/aml-build.h |   1 +
> >> >  include/sysemu/numa.h       |   2 +
> >> >  include/sysemu/sysemu.h     |   4 ++
> >> >  numa.c                      | 137 +++++++++++++++++++++++++++++++++++++++++++-
> >> >  qapi-schema.json            |  30 +++++++++-
> >> >  qemu-options.hx             |  16 +++++-
> >> >  8 files changed, 215 insertions(+), 5 deletions(-)    
> >> 
> >> Markus has asked that all new QMP commands have some testsuite exposure;
> >> he may have some advice on what test would be best to modify to give us
> >> some coverage of this feature.  
> 
> I can't see the QMP command here, but...
> 
> > Since it's basically validation of SLIT table, the test case
> > should be added to tests/bios-tables-test.c  
> 
> ... I figure there's new stuff to test all the same.
it could be a patch on top and doesn't have to hold this one if author promises to write testcase