diff options
| -rw-r--r-- | hw/i386/pc.c | 45 | ||||
| -rw-r--r-- | qmp-commands.hx | 15 |
2 files changed, 60 insertions, 0 deletions
diff --git a/hw/i386/pc.c b/hw/i386/pc.c index 68d8cad827..13843da635 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -2236,6 +2236,50 @@ static CPUArchIdList *pc_possible_cpu_arch_ids(MachineState *machine) return list; } +static HotpluggableCPUList *pc_query_hotpluggable_cpus(MachineState *machine) +{ + int i; + CPUState *cpu; + HotpluggableCPUList *head = NULL; + PCMachineState *pcms = PC_MACHINE(machine); + const char *cpu_type; + + cpu = pcms->possible_cpus->cpus[0].cpu; + assert(cpu); /* BSP is always present */ + cpu_type = object_class_get_name(OBJECT_CLASS(CPU_GET_CLASS(cpu))); + + for (i = 0; i < pcms->possible_cpus->len; i++) { + X86CPUTopoInfo topo; + HotpluggableCPUList *list_item = g_new0(typeof(*list_item), 1); + HotpluggableCPU *cpu_item = g_new0(typeof(*cpu_item), 1); + CpuInstanceProperties *cpu_props = g_new0(typeof(*cpu_props), 1); + const uint32_t apic_id = pcms->possible_cpus->cpus[i].arch_id; + + x86_topo_ids_from_apicid(apic_id, smp_cores, smp_threads, &topo); + + cpu_item->type = g_strdup(cpu_type); + cpu_item->vcpus_count = 1; + cpu_props->has_socket_id = true; + cpu_props->socket_id = topo.pkg_id; + cpu_props->has_core_id = true; + cpu_props->core_id = topo.core_id; + cpu_props->has_thread_id = true; + cpu_props->thread_id = topo.smt_id; + cpu_item->props = cpu_props; + + cpu = pcms->possible_cpus->cpus[i].cpu; + if (cpu) { + cpu_item->has_qom_path = true; + cpu_item->qom_path = object_get_canonical_path(OBJECT(cpu)); + } + + list_item->value = cpu_item; + list_item->next = head; + head = list_item; + } + return head; +} + static void x86_nmi(NMIState *n, int cpu_index, Error **errp) { /* cpu index isn't used */ @@ -2276,6 +2320,7 @@ static void pc_machine_class_init(ObjectClass *oc, void *data) mc->get_hotplug_handler = pc_get_hotpug_handler; mc->cpu_index_to_socket_id = pc_cpu_index_to_socket_id; mc->possible_cpu_arch_ids = pc_possible_cpu_arch_ids; + mc->query_hotpluggable_cpus = pc_query_hotpluggable_cpus; mc->default_boot_order = "cad"; mc->hot_add_cpu = pc_hot_add_cpu; mc->max_cpus = 255; diff --git a/qmp-commands.hx b/qmp-commands.hx index 496d73c275..c8d360ad36 100644 --- a/qmp-commands.hx +++ b/qmp-commands.hx @@ -5026,3 +5026,18 @@ Example for pseries machine type started with { "props": { "core-id": 0 }, "type": "POWER8-spapr-cpu-core", "vcpus-count": 1, "qom-path": "/machine/unattached/device[0]"} ]}' + +Example for pc machine type started with +-smp 1,maxcpus=2: + -> { "execute": "query-hotpluggable-cpus" } + <- {"return": [ + { + "type": "qemu64-x86_64-cpu", "vcpus-count": 1, + "props": {"core-id": 0, "socket-id": 1, "thread-id": 0} + }, + { + "qom-path": "/machine/unattached/device[0]", + "type": "qemu64-x86_64-cpu", "vcpus-count": 1, + "props": {"core-id": 0, "socket-id": 0, "thread-id": 0} + } + ]} |