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[Qemu-devel] [RFC 11/13] numa: use new machine.cpu property with -numa c
From: |
Igor Mammedov |
Subject: |
[Qemu-devel] [RFC 11/13] numa: use new machine.cpu property with -numa cpus=... CLI |
Date: |
Wed, 18 Jan 2017 18:13:27 +0100 |
add compat layer to legacy cpu_index based '-numa cpus=...'
CLI option, which will use new machine.cpu property to set
numa mapping if that propety is available.
This way machine that supports machine.cpu property will
not break legacy CLI but will be able to move away from
using numa_info[node_id].node_cpu bitmaps and use only
possible_cpus instead.
Signed-off-by: Igor Mammedov <address@hidden>
---
numa.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++++---------------
1 file changed, 48 insertions(+), 15 deletions(-)
diff --git a/numa.c b/numa.c
index 887ee58..0c34130 100644
--- a/numa.c
+++ b/numa.c
@@ -141,10 +141,35 @@ uint32_t numa_get_node(ram_addr_t addr, Error **errp)
return -1;
}
-static void numa_node_parse(NumaNodeOptions *node, QemuOpts *opts, Error
**errp)
+static void numa_cpu_set_nid(MachineState *ms, CpuInstanceProperties *props,
+ Error **errp)
+{
+ Visitor *v;
+ QObject *qobj;
+ Error *local_error = NULL;
+
+ v = qobject_output_visitor_new(&qobj);
+ visit_type_CpuInstanceProperties(v, "cpu", &props, &local_error);
+ visit_complete(v, &qobj);
+ visit_free(v);
+ if (local_error) {
+ goto end;
+ }
+ v = qobject_input_visitor_new(qobj, true);
+ object_property_set(OBJECT(ms), v, "cpu", &local_error);
+ visit_free(v);
+ qobject_decref(qobj);
+end:
+ error_propagate(errp, local_error);
+}
+
+static void numa_node_parse(MachineState *ms, NumaNodeOptions *node,
+ QemuOpts *opts, Error **errp)
{
uint16_t nodenr;
uint16List *cpus = NULL;
+ MachineClass *mc = MACHINE_GET_CLASS(ms);
+ bool has_cpu_prop = object_property_find(OBJECT(ms), "cpu", NULL);
if (node->has_nodeid) {
nodenr = node->nodeid;
@@ -172,6 +197,19 @@ static void numa_node_parse(NumaNodeOptions *node,
QemuOpts *opts, Error **errp)
return;
}
bitmap_set(numa_info[nodenr].node_cpu, cpus->value, 1);
+ if (mc->cpu_index_to_instance_props && has_cpu_prop) {
+ CpuInstanceProperties props;
+ Error *local_error = NULL;
+
+ props = mc->cpu_index_to_instance_props(ms, cpus->value);
+ props.has_node_id = true;
+ props.node_id = nodenr;
+ numa_cpu_set_nid(ms, &props, &local_error);
+ if (local_error) {
+ error_propagate(errp, local_error);
+ return;
+ }
+ }
}
if (node->has_mem && node->has_memdev) {
@@ -232,26 +270,14 @@ static int parse_numa(void *opaque, QemuOpts *opts, Error
**errp)
switch (object->type) {
case NUMA_OPTIONS_KIND_NODE:
- numa_node_parse(object->u.node.data, opts, &err);
+ numa_node_parse(ms, object->u.node.data, opts, &err);
if (err) {
goto end;
}
nb_numa_nodes++;
break;
case NUMA_OPTIONS_KIND_CPU: {
- QObject *qobj;
-
- v = qobject_output_visitor_new(&qobj);
- visit_type_CpuInstanceProperties(v, "cpu", &object->u.cpu.data, &err);
- visit_complete(v, &qobj);
- visit_free(v);
- if (err) {
- goto end;
- }
- v = qobject_input_visitor_new(qobj, true);
- object_property_set(OBJECT(ms), v, "cpu", &err);
- visit_free(v);
- qobject_decref(qobj);
+ numa_cpu_set_nid(ms, object->u.cpu.data, &err);
if (err) {
goto end;
}
@@ -402,6 +428,8 @@ void parse_numa_opts(MachineState *ms)
* would be on the same node.
*/
if (i == nb_numa_nodes) {
+ bool has_cpu_prop = object_property_find(OBJECT(ms), "cpu", NULL);
+
for (i = 0; i < max_cpus; i++) {
unsigned node_id = i % nb_numa_nodes;
if (mc->cpu_index_to_instance_props) {
@@ -409,6 +437,11 @@ void parse_numa_opts(MachineState *ms)
topo = mc->cpu_index_to_instance_props(ms, i);
assert(topo.has_socket_id);
node_id = topo.socket_id % nb_numa_nodes;
+ if (has_cpu_prop) {
+ topo.has_node_id = true;
+ topo.node_id = node_id;
+ numa_cpu_set_nid(ms, &topo, &error_fatal);
+ }
}
set_bit(i, numa_info[node_id].node_cpu);
--
2.7.4
- Re: [Qemu-devel] [RFC 08/13] pc: add writeonly 'cpu' property to PCMachine, (continued)
- [Qemu-devel] [RFC 07/13] pc: pass apic_id to pc_find_cpu_slot() directly so lookup could be done without CPU object, Igor Mammedov, 2017/01/18
- [Qemu-devel] [RFC 09/13] numa: introduce '-numa cpu' cpu option, Igor Mammedov, 2017/01/18
- [Qemu-devel] [RFC 10/13] numa: replace cpu_index_to_socket_id() with cpu_index_to_instance_props(), Igor Mammedov, 2017/01/18
- [Qemu-devel] [RFC 11/13] numa: use new machine.cpu property with -numa cpus=... CLI,
Igor Mammedov <=
- [Qemu-devel] [RFC 13/13] pc: cpu: make sure that cpu.node-id matches -numa mapping, Igor Mammedov, 2017/01/18
- [Qemu-devel] [RFC 12/13] pc: drop usage of legacy numa_get_node_for_cpu(), Igor Mammedov, 2017/01/18
- Re: [Qemu-devel] [RFC 00/13] numa: add '-numa cpu' option, Daniel P. Berrange, 2017/01/19
- Re: [Qemu-devel] [RFC 00/13] numa: add '-numa cpu' option, Igor Mammedov, 2017/01/20