[Qemu-devel] [RFC 2 PATCH 11/16] Introduce-topo_ids_from_apicid-handler

["Moger, Babu" <Babu.Moger@amd.com>]

hw/i386: Introduce topo_ids_from_apicid handler PCMachineState

Add function pointer topo_ids_from_apicid in PCMachineState.
Initialize with correct handler based on mode selected.
x86_apicid_from_cpu_idx will be the default handler.

Signed-off-by: Babu Moger <babu.moger@amd.com>
---
 hw/i386/pc.c         |   13 +++++++------
 include/hw/i386/pc.h |    2 ++
 2 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 69a6b82186..c88de09350 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -2461,7 +2461,7 @@ static void pc_cpu_pre_plug(HotplugHandler *hotplug_dev,
     if (!cpu_slot) {
         MachineState *ms = MACHINE(pcms);
 
-        x86_topo_ids_from_apicid(cpu->apic_id, &topo_info, &topo_ids);
+        pcms->topo_ids_from_apicid(cpu->apic_id, &topo_info, &topo_ids);
         error_setg(errp,
             "Invalid CPU [socket: %u, die: %u, core: %u, thread: %u] with"
             " APIC ID %" PRIu32 ", valid index range 0:%d",
@@ -2482,7 +2482,7 @@ static void pc_cpu_pre_plug(HotplugHandler *hotplug_dev,
     /* TODO: move socket_id/core_id/thread_id checks into x86_cpu_realizefn()
      * once -smp refactoring is complete and there will be CPU private
      * CPUState::nr_cores and CPUState::nr_threads fields instead of globals */
-    x86_topo_ids_from_apicid(cpu->apic_id, &topo_info, &topo_ids);
+    pcms->topo_ids_from_apicid(cpu->apic_id, &topo_info, &topo_ids);
     if (cpu->socket_id != -1 && cpu->socket_id != topo_ids.pkg_id) {
         error_setg(errp, "property socket-id: %u doesn't match set apic-id:"
             " 0x%x (socket-id: %u)", cpu->socket_id, cpu->apic_id, topo_ids.pkg_id);
@@ -2830,6 +2830,7 @@ static void pc_machine_initfn(Object *obj)
 
     /* Initialize the apic id related handlers */
     pcms->apicid_from_cpu_idx = x86_apicid_from_cpu_idx;
+    pcms->topo_ids_from_apicid = x86_topo_ids_from_apicid;
 
     pc_system_flash_create(pcms);
 }
@@ -2872,8 +2873,8 @@ static int64_t pc_get_default_cpu_node_id(const MachineState *ms, int idx)
    initialize_topo_info(&topo_info, pcms, ms);
 
    assert(idx < ms->possible_cpus->len);
-   x86_topo_ids_from_apicid(ms->possible_cpus->cpus[idx].arch_id,
-                            &topo_info, &topo_ids);
+   pcms->topo_ids_from_apicid(ms->possible_cpus->cpus[idx].arch_id,
+                              &topo_info, &topo_ids);
    return topo_ids.pkg_id % nb_numa_nodes;
 }
 
@@ -2906,8 +2907,8 @@ static const CPUArchIdList *pc_possible_cpu_arch_ids(MachineState *ms)
         ms->possible_cpus->cpus[i].type = ms->cpu_type;
         ms->possible_cpus->cpus[i].vcpus_count = 1;
         ms->possible_cpus->cpus[i].arch_id = x86_cpu_apic_id_from_index(pcms, i);
-        x86_topo_ids_from_apicid(ms->possible_cpus->cpus[i].arch_id,
-                                 &topo_info, &topo_ids);
+        pcms->topo_ids_from_apicid(ms->possible_cpus->cpus[i].arch_id,
+                                   &topo_info, &topo_ids);
         ms->possible_cpus->cpus[i].props.has_socket_id = true;
         ms->possible_cpus->cpus[i].props.socket_id = topo_ids.pkg_id;
         ms->possible_cpus->cpus[i].props.has_die_id = true;
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index 6cefefdd57..9a40f123d0 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -69,6 +69,8 @@ struct PCMachineState {
 
     /* Apic id specific handlers */
     uint32_t (*apicid_from_cpu_idx)(X86CPUTopoInfo *topo_info, unsigned cpu_index);
+    void (*topo_ids_from_apicid)(apic_id_t apicid, X86CPUTopoInfo *topo_info,
+                                 X86CPUTopoIDs *topo_ids);
 
     /* Address space used by IOAPIC device. All IOAPIC interrupts
      * will be translated to MSI messages in the address space. */