Add MachineClass::auto_enable_numa field. When it is true, a NUMA node
is expected to be created implicitly.
Acked-by: David Gibson <da...@gibson.dropbear.id.au>
Suggested-by: Igor Mammedov <imamm...@redhat.com>
Suggested-by: Eduardo Habkost <ehabk...@redhat.com>
Reviewed-by: Igor Mammedov <imamm...@redhat.com>
Signed-off-by: Tao Xu <tao3...@intel.com>
---
Note: Parameter -numa node,mem is deprecated too. So I set
"numa_info[0].node_mem = ram_size" instead of
"NumaNodeOptions node = { .mem = ram_size }".
Changes in v2:
- Fix the qtest error, avoid using numa_auto_assign_ram.
---
hw/core/numa.c | 10 ++++++++--
hw/ppc/spapr.c | 9 +--------
include/hw/boards.h | 1 +
3 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/hw/core/numa.c b/hw/core/numa.c
index 4dfec5c95b..038c96d4ab 100644
--- a/hw/core/numa.c
+++ b/hw/core/numa.c
@@ -378,11 +378,17 @@ void numa_complete_configuration(MachineState *ms)
* guest tries to use it with that drivers.
*
* Enable NUMA implicitly by adding a new NUMA node automatically.
+ *
+ * Or if MachineClass::auto_enable_numa is true and no NUMA nodes,
+ * assume there is just one node with whole RAM.
*/
- if (ms->ram_slots > 0 && ms->numa_state->num_nodes == 0 &&
- mc->auto_enable_numa_with_memhp) {
+ if (ms->numa_state->num_nodes == 0 &&
+ ((ms->ram_slots > 0 &&
+ mc->auto_enable_numa_with_memhp) ||
+ mc->auto_enable_numa)) {
NumaNodeOptions node = { };
parse_numa_node(ms, &node, &error_abort);
+ numa_info[0].node_mem = ram_size;
}
assert(max_numa_nodeid <= MAX_NODES);
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 222a325056..f760e0f5d7 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -405,14 +405,6 @@ static int spapr_populate_memory(SpaprMachineState *spapr,
void *fdt)
hwaddr mem_start, node_size;
int i, nb_nodes = machine->numa_state->num_nodes;
NodeInfo *nodes = machine->numa_state->nodes;
- NodeInfo ramnode;
-
- /* No NUMA nodes, assume there is just one node with whole RAM */
- if (!nb_nodes) {
- nb_nodes = 1;
- ramnode.node_mem = machine->ram_size;
- nodes = &ramnode;
- }
for (i = 0, mem_start = 0; i < nb_nodes; ++i) {
if (!nodes[i].node_mem) {
@@ -4477,6 +4469,7 @@ static void spapr_machine_class_init(ObjectClass *oc,
void *data)
*/
mc->numa_mem_align_shift = 28;
mc->numa_mem_supported = true;
+ mc->auto_enable_numa = true;
smc->default_caps.caps[SPAPR_CAP_HTM] = SPAPR_CAP_OFF;
smc->default_caps.caps[SPAPR_CAP_VSX] = SPAPR_CAP_ON;
diff --git a/include/hw/boards.h b/include/hw/boards.h
index 2289536e48..481e69388e 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -221,6 +221,7 @@ struct MachineClass {
bool smbus_no_migration_support;
bool nvdimm_supported;
bool numa_mem_supported;
+ bool auto_enable_numa;
HotplugHandler *(*get_hotplug_handler)(MachineState *machine,
DeviceState *dev);
--
2.20.1
