[PULL 04/18] hw/arm: Validate cluster and NUMA node boundary

[Paolo Bonzini]

From: Gavin Shan <gshan@redhat.com>

There are two ARM machines where NUMA is aware: 'virt' and 'sbsa-ref'.
Both of them are required to follow cluster-NUMA-node boundary. To
enable the validation to warn about the irregular configuration where
multiple CPUs in one cluster have been associated with different NUMA
nodes.

Signed-off-by: Gavin Shan <gshan@redhat.com>
Acked-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20230509002739.18388-3-gshan@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 hw/arm/sbsa-ref.c | 2 ++
 hw/arm/virt.c     | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/hw/arm/sbsa-ref.c b/hw/arm/sbsa-ref.c
index 0639f97dd5f..b774d802918 100644
--- a/hw/arm/sbsa-ref.c
+++ b/hw/arm/sbsa-ref.c
@@ -910,6 +910,8 @@ static void sbsa_ref_class_init(ObjectClass *oc, void *data)
     mc->possible_cpu_arch_ids = sbsa_ref_possible_cpu_arch_ids;
     mc->cpu_index_to_instance_props = sbsa_ref_cpu_index_to_props;
     mc->get_default_cpu_node_id = sbsa_ref_get_default_cpu_node_id;
+    /* platform instead of architectural choice */
+    mc->cpu_cluster_has_numa_boundary = true;
 }
 
 static const TypeInfo sbsa_ref_info = {
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index 9b9f7d9c687..3937e304774 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -3033,6 +3033,8 @@ static void virt_machine_class_init(ObjectClass *oc, void 
*data)
     mc->smp_props.clusters_supported = true;
     mc->auto_enable_numa_with_memhp = true;
     mc->auto_enable_numa_with_memdev = true;
+    /* platform instead of architectural choice */
+    mc->cpu_cluster_has_numa_boundary = true;
     mc->default_ram_id = "mach-virt.ram";
     mc->default_nic = "virtio-net-pci";
 
-- 
2.41.0