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authorLaurent Vivier <lvivier@redhat.com>2017-03-21 11:25:42 +0100
committerDavid Gibson <david@gibson.dropbear.id.au>2017-03-22 11:32:42 +1100
commit55641213fc81cdfc3bcd56c9e9991faa119201b2 (patch)
treef48f41e82bdafedf094dfc0d03f55cbde2fb9c33 /include
parent55a19ad8b2d0797e3a8fe90ab99a9bb713824059 (diff)
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numa,spapr: align default numa node memory size to 256MB
Since commit 224245b ("spapr: Add LMB DR connectors"), NUMA node memory size must be aligned to 256MB (SPAPR_MEMORY_BLOCK_SIZE). But when "-numa" option is provided without "mem" parameter, the memory is equally divided between nodes, but 8MB aligned. This can be not valid for pseries. In that case we can have: $ ./ppc64-softmmu/qemu-system-ppc64 -m 4G -numa node -numa node -numa node qemu-system-ppc64: Node 0 memory size 0x55000000 is not aligned to 256 MiB With this patch, we have: (qemu) info numa 3 nodes node 0 cpus: 0 node 0 size: 1280 MB node 1 cpus: node 1 size: 1280 MB node 2 cpus: node 2 size: 1536 MB Signed-off-by: Laurent Vivier <lvivier@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'include')
-rw-r--r--include/hw/boards.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/hw/boards.h b/include/hw/boards.h
index 269d0ba..31d9c72 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -135,6 +135,7 @@ struct MachineClass {
bool rom_file_has_mr;
int minimum_page_bits;
bool has_hotpluggable_cpus;
+ int numa_mem_align_shift;
HotplugHandler *(*get_hotplug_handler)(MachineState *machine,
DeviceState *dev);