[RFC 40/41] hw/i386: Support QOM topology

[Zhao Liu <zhao1.liu@xxxxxxxxxxxxxxx>]

From: Zhao Liu <zhao1.liu@xxxxxxxxx>

Set MachineClass.smp_props.possible_cpus_qom_granu and
TopoClass.search_parent_pre_plug for i386.

So far, the i386 topology is based on the QOM topology.

Signed-off-by: Zhao Liu <zhao1.liu@xxxxxxxxx>
---
 hw/i386/x86.c     | 1 +
 target/i386/cpu.c | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/hw/i386/x86.c b/hw/i386/x86.c
index 595d4365fdd1..99f6c502de43 100644
--- a/hw/i386/x86.c
+++ b/hw/i386/x86.c
@@ -1565,6 +1565,7 @@ static void x86_machine_class_init(ObjectClass *oc, void 
*data)
     mc->cpu_index_to_instance_props = x86_cpu_index_to_props;
     mc->get_default_cpu_node_id = x86_get_default_cpu_node_id;
     mc->possible_cpu_arch_ids = x86_possible_cpu_arch_ids;
+    mc->smp_props.possible_cpus_qom_granu = CPU_TOPO_THREAD;
     x86mc->save_tsc_khz = true;
     x86mc->fwcfg_dma_enabled = true;
     nc->nmi_monitor_handler = x86_nmi;
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index cd16cb893daf..1de5726691e1 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -41,6 +41,7 @@
 #include "exec/address-spaces.h"
 #include "hw/boards.h"
 #include "hw/i386/sgx-epc.h"
+#include "hw/i386/x86.h"
 #endif
 
 #include "disas/capstone.h"
@@ -8009,6 +8010,9 @@ static void x86_cpu_common_class_init(ObjectClass *oc, 
void *data)
 #if !defined(CONFIG_USER_ONLY)
     object_class_property_add(oc, "crash-information", "GuestPanicInformation",
                               x86_cpu_get_crash_info_qom, NULL, NULL, NULL);
+
+    CPU_TOPO_CLASS(oc)->search_parent_pre_plug =
+        x86_cpu_search_parent_pre_plug;
 #endif
 
     for (w = 0; w < FEATURE_WORDS; w++) {
-- 
2.34.1