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| author | Daniel Henrique Barboza <danielhb413@gmail.com> | 2021-09-20 14:49:47 -0300 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2021-09-30 12:26:06 +1000 |
| commit | 0d5ba48112daf820daddb5c952265fa23e092e69 (patch) | |
| tree | b278bb5b1beb3421698ef2c117f7a855348f5418 /scripts/qapi/parser.py | |
| parent | e0eb84d4f51f26aff6210407ec658c4b9ecbc68f (diff) | |
| download | focaccia-qemu-0d5ba48112daf820daddb5c952265fa23e092e69.tar.gz focaccia-qemu-0d5ba48112daf820daddb5c952265fa23e092e69.zip | |
spapr_numa.c: handle auto NUMA node with no distance info
numa_complete_configuration() in hw/core/numa.c always adds a NUMA node for the pSeries machine if none was specified, but without node distance information for the single node created. NUMA FORM1 affinity code didn't rely on numa_state information to do its job, but FORM2 does. As is now, this is the result of a pSeries guest with NUMA FORM2 affinity when no NUMA nodes is specified: $ numactl -H available: 1 nodes (0) node 0 cpus: 0 node 0 size: 16222 MB node 0 free: 15681 MB No distance information available. This can be amended in spapr_numa_FORM2_write_rtas_tables(). We're enforcing that the local distance (the distance to the node to itself) is always 10. This allows for the proper creation of the NUMA distance tables, fixing the output of 'numactl -H' in the guest: $ numactl -H available: 1 nodes (0) node 0 cpus: 0 node 0 size: 16222 MB node 0 free: 15685 MB node distances: node 0 0: 10 CC: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Greg Kurz <groug@kaod.org> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> Message-Id: <20210920174947.556324-8-danielhb413@gmail.com> Acked-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'scripts/qapi/parser.py')
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