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| author | Serhii Popovych <spopovyc@redhat.com> | 2018-04-11 14:41:59 -0400 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2018-04-27 18:05:23 +1000 |
| commit | da9f80fbad21319194e73355dea8a1cff6a574e4 (patch) | |
| tree | 997f6e7b7848eb12a24f4e5a6de9ff49bebb2389 /hw/ppc | |
| parent | 67d7d66f27c49a87c6f28ccff814f5d7eaaccec6 (diff) | |
| download | focaccia-qemu-da9f80fbad21319194e73355dea8a1cff6a574e4.tar.gz focaccia-qemu-da9f80fbad21319194e73355dea8a1cff6a574e4.zip | |
spapr: Add ibm,max-associativity-domains property
Now recent kernels (i.e. since linux-stable commit a346137e9142
("powerpc/numa: Use ibm,max-associativity-domains to discover possible nodes")
support this property to mark initially memory-less NUMA nodes as "possible"
to allow further memory hot-add to them.
Advertise this property for pSeries machines to let guest kernels detect
maximum supported node configuration and benefit from kernel side change
when hot-add memory to specific, possibly empty before, NUMA node.
Signed-off-by: Serhii Popovych <spopovyc@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'hw/ppc')
| -rw-r--r-- | hw/ppc/spapr.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index 8c2e3ccb89..2203b6f46d 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -909,6 +909,13 @@ static void spapr_dt_rtas(sPAPRMachineState *spapr, void *fdt) 0, cpu_to_be32(SPAPR_MEMORY_BLOCK_SIZE), cpu_to_be32(max_cpus / smp_threads), }; + uint32_t maxdomains[] = { + cpu_to_be32(4), + cpu_to_be32(0), + cpu_to_be32(0), + cpu_to_be32(0), + cpu_to_be32(nb_numa_nodes ? nb_numa_nodes - 1 : 0), + }; _FDT(rtas = fdt_add_subnode(fdt, 0, "rtas")); @@ -945,6 +952,9 @@ static void spapr_dt_rtas(sPAPRMachineState *spapr, void *fdt) _FDT(fdt_setprop(fdt, rtas, "ibm,associativity-reference-points", refpoints, sizeof(refpoints))); + _FDT(fdt_setprop(fdt, rtas, "ibm,max-associativity-domains", + maxdomains, sizeof(maxdomains))); + _FDT(fdt_setprop_cell(fdt, rtas, "rtas-error-log-max", RTAS_ERROR_LOG_MAX)); _FDT(fdt_setprop_cell(fdt, rtas, "rtas-event-scan-rate", |