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authorHe Chen <he.chen@linux.intel.com>2017-04-27 10:35:58 +0800
committerEduardo Habkost <ehabkost@redhat.com>2017-05-11 16:08:37 -0300
commit0f203430dd88cc6270310956ace58aca639edb59 (patch)
treeb188d4e290c4e52f38db97ffc00e36f1c898435d /qapi-schema.json
parent4ed3d478c63dc65a02eba774c35116618ea5ff10 (diff)
downloadqemu-arm-0f203430dd88cc6270310956ace58aca639edb59.tar.gz
numa: Allow setting NUMA distance for different NUMA nodes
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> Message-Id: <1493260558-20728-1-git-send-email-he.chen@linux.intel.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Andrew Jones <drjones@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Diffstat (limited to 'qapi-schema.json')
-rw-r--r--qapi-schema.json30
1 files changed, 28 insertions, 2 deletions
diff --git a/qapi-schema.json b/qapi-schema.json
index 5728b7f363..f4eef33a44 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -5682,10 +5682,14 @@
##
# @NumaOptionsType:
#
+# @node: NUMA nodes configuration
+#
+# @dist: NUMA distance configuration (since 2.10)
+#
# Since: 2.1
##
{ 'enum': 'NumaOptionsType',
- 'data': [ 'node' ] }
+ 'data': [ 'node', 'dist' ] }
##
# @NumaOptions:
@@ -5698,7 +5702,8 @@
'base': { 'type': 'NumaOptionsType' },
'discriminator': 'type',
'data': {
- 'node': 'NumaNodeOptions' }}
+ 'node': 'NumaNodeOptions',
+ 'dist': 'NumaDistOptions' }}
##
# @NumaNodeOptions:
@@ -5727,6 +5732,27 @@
'*memdev': 'str' }}
##
+# @NumaDistOptions:
+#
+# Set the distance between 2 NUMA nodes.
+#
+# @src: source NUMA node.
+#
+# @dst: destination NUMA node.
+#
+# @val: NUMA distance from source node to destination node.
+# When a node is unreachable from another node, set the distance
+# between them to 255.
+#
+# Since: 2.10
+##
+{ 'struct': 'NumaDistOptions',
+ 'data': {
+ 'src': 'uint16',
+ 'dst': 'uint16',
+ 'val': 'uint8' }}
+
+##
# @HostMemPolicy:
#
# Host memory policy types