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Diffstat (limited to 'hw/i386/pc.c')
-rw-r--r--hw/i386/pc.c126
1 files changed, 55 insertions, 71 deletions
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 60b0946..d24388e 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -707,7 +707,8 @@ static void pc_build_smbios(PCMachineState *pcms)
size_t smbios_tables_len, smbios_anchor_len;
struct smbios_phys_mem_area *mem_array;
unsigned i, array_count;
- X86CPU *cpu = X86_CPU(pcms->possible_cpus->cpus[0].cpu);
+ MachineState *ms = MACHINE(pcms);
+ X86CPU *cpu = X86_CPU(ms->possible_cpus->cpus[0].cpu);
/* tell smbios about cpuid version and features */
smbios_set_cpuid(cpu->env.cpuid_version, cpu->env.features[FEAT_1_EDX]);
@@ -1111,7 +1112,7 @@ static void pc_new_cpu(const char *typename, int64_t apic_id, Error **errp)
void pc_hot_add_cpu(const int64_t id, Error **errp)
{
ObjectClass *oc;
- PCMachineState *pcms = PC_MACHINE(qdev_get_machine());
+ MachineState *ms = MACHINE(qdev_get_machine());
int64_t apic_id = x86_cpu_apic_id_from_index(id);
Error *local_err = NULL;
@@ -1127,8 +1128,8 @@ void pc_hot_add_cpu(const int64_t id, Error **errp)
return;
}
- assert(pcms->possible_cpus->cpus[0].cpu); /* BSP is always present */
- oc = OBJECT_CLASS(CPU_GET_CLASS(pcms->possible_cpus->cpus[0].cpu));
+ assert(ms->possible_cpus->cpus[0].cpu); /* BSP is always present */
+ oc = OBJECT_CLASS(CPU_GET_CLASS(ms->possible_cpus->cpus[0].cpu));
pc_new_cpu(object_class_get_name(oc), apic_id, &local_err);
if (local_err) {
error_propagate(errp, local_err);
@@ -1143,7 +1144,9 @@ void pc_cpus_init(PCMachineState *pcms)
ObjectClass *oc;
const char *typename;
gchar **model_pieces;
+ const CPUArchIdList *possible_cpus;
MachineState *machine = MACHINE(pcms);
+ MachineClass *mc = MACHINE_GET_CLASS(pcms);
/* init CPUs */
if (machine->cpu_model == NULL) {
@@ -1178,20 +1181,16 @@ void pc_cpus_init(PCMachineState *pcms)
* This is used for FW_CFG_MAX_CPUS. See comments on bochs_bios_init().
*/
pcms->apic_id_limit = x86_cpu_apic_id_from_index(max_cpus - 1) + 1;
- pcms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) +
- sizeof(CPUArchId) * max_cpus);
- for (i = 0; i < max_cpus; i++) {
- pcms->possible_cpus->cpus[i].arch_id = x86_cpu_apic_id_from_index(i);
- pcms->possible_cpus->len++;
- if (i < smp_cpus) {
- pc_new_cpu(typename, x86_cpu_apic_id_from_index(i), &error_fatal);
- }
+ possible_cpus = mc->possible_cpu_arch_ids(machine);
+ for (i = 0; i < smp_cpus; i++) {
+ pc_new_cpu(typename, possible_cpus->cpus[i].arch_id, &error_fatal);
}
}
static void pc_build_feature_control_file(PCMachineState *pcms)
{
- X86CPU *cpu = X86_CPU(pcms->possible_cpus->cpus[0].cpu);
+ MachineState *ms = MACHINE(pcms);
+ X86CPU *cpu = X86_CPU(ms->possible_cpus->cpus[0].cpu);
CPUX86State *env = &cpu->env;
uint32_t unused, ecx, edx;
uint64_t feature_control_bits = 0;
@@ -1787,21 +1786,19 @@ static int pc_apic_cmp(const void *a, const void *b)
}
/* returns pointer to CPUArchId descriptor that matches CPU's apic_id
- * in pcms->possible_cpus->cpus, if pcms->possible_cpus->cpus has no
+ * in ms->possible_cpus->cpus, if ms->possible_cpus->cpus has no
* entry corresponding to CPU's apic_id returns NULL.
*/
-static CPUArchId *pc_find_cpu_slot(PCMachineState *pcms, CPUState *cpu,
- int *idx)
+static CPUArchId *pc_find_cpu_slot(MachineState *ms, uint32_t id, int *idx)
{
- CPUClass *cc = CPU_GET_CLASS(cpu);
CPUArchId apic_id, *found_cpu;
- apic_id.arch_id = cc->get_arch_id(CPU(cpu));
- found_cpu = bsearch(&apic_id, pcms->possible_cpus->cpus,
- pcms->possible_cpus->len, sizeof(*pcms->possible_cpus->cpus),
+ apic_id.arch_id = id;
+ found_cpu = bsearch(&apic_id, ms->possible_cpus->cpus,
+ ms->possible_cpus->len, sizeof(*ms->possible_cpus->cpus),
pc_apic_cmp);
if (found_cpu && idx) {
- *idx = found_cpu - pcms->possible_cpus->cpus;
+ *idx = found_cpu - ms->possible_cpus->cpus;
}
return found_cpu;
}
@@ -1812,6 +1809,7 @@ static void pc_cpu_plug(HotplugHandler *hotplug_dev,
CPUArchId *found_cpu;
HotplugHandlerClass *hhc;
Error *local_err = NULL;
+ X86CPU *cpu = X86_CPU(dev);
PCMachineState *pcms = PC_MACHINE(hotplug_dev);
if (pcms->acpi_dev) {
@@ -1831,8 +1829,8 @@ static void pc_cpu_plug(HotplugHandler *hotplug_dev,
fw_cfg_modify_i16(pcms->fw_cfg, FW_CFG_NB_CPUS, pcms->boot_cpus);
}
- found_cpu = pc_find_cpu_slot(pcms, CPU(dev), NULL);
- found_cpu->cpu = CPU(dev);
+ found_cpu = pc_find_cpu_slot(MACHINE(pcms), cpu->apic_id, NULL);
+ found_cpu->cpu = OBJECT(dev);
out:
error_propagate(errp, local_err);
}
@@ -1842,9 +1840,10 @@ static void pc_cpu_unplug_request_cb(HotplugHandler *hotplug_dev,
int idx = -1;
HotplugHandlerClass *hhc;
Error *local_err = NULL;
+ X86CPU *cpu = X86_CPU(dev);
PCMachineState *pcms = PC_MACHINE(hotplug_dev);
- pc_find_cpu_slot(pcms, CPU(dev), &idx);
+ pc_find_cpu_slot(MACHINE(pcms), cpu->apic_id, &idx);
assert(idx != -1);
if (idx == 0) {
error_setg(&local_err, "Boot CPU is unpluggable");
@@ -1869,6 +1868,7 @@ static void pc_cpu_unplug_cb(HotplugHandler *hotplug_dev,
CPUArchId *found_cpu;
HotplugHandlerClass *hhc;
Error *local_err = NULL;
+ X86CPU *cpu = X86_CPU(dev);
PCMachineState *pcms = PC_MACHINE(hotplug_dev);
hhc = HOTPLUG_HANDLER_GET_CLASS(pcms->acpi_dev);
@@ -1878,7 +1878,7 @@ static void pc_cpu_unplug_cb(HotplugHandler *hotplug_dev,
goto out;
}
- found_cpu = pc_find_cpu_slot(pcms, CPU(dev), NULL);
+ found_cpu = pc_find_cpu_slot(MACHINE(pcms), cpu->apic_id, NULL);
found_cpu->cpu = NULL;
object_unparent(OBJECT(dev));
@@ -1936,13 +1936,15 @@ static void pc_cpu_pre_plug(HotplugHandler *hotplug_dev,
cpu->apic_id = apicid_from_topo_ids(smp_cores, smp_threads, &topo);
}
- cpu_slot = pc_find_cpu_slot(pcms, CPU(dev), &idx);
+ cpu_slot = pc_find_cpu_slot(MACHINE(pcms), cpu->apic_id, &idx);
if (!cpu_slot) {
+ MachineState *ms = MACHINE(pcms);
+
x86_topo_ids_from_apicid(cpu->apic_id, smp_cores, smp_threads, &topo);
error_setg(errp, "Invalid CPU [socket: %u, core: %u, thread: %u] with"
" APIC ID %" PRIu32 ", valid index range 0:%d",
topo.pkg_id, topo.core_id, topo.smt_id, cpu->apic_id,
- pcms->possible_cpus->len - 1);
+ ms->possible_cpus->len - 1);
return;
}
@@ -1953,7 +1955,7 @@ static void pc_cpu_pre_plug(HotplugHandler *hotplug_dev,
}
/* if 'address' properties socket-id/core-id/thread-id are not set, set them
- * so that query_hotpluggable_cpus would show correct values
+ * so that machine_query_hotpluggable_cpus would show correct values
*/
/* TODO: move socket_id/core_id/thread_id checks into x86_cpu_realizefn()
* once -smp refactoring is complete and there will be CPU private
@@ -2251,55 +2253,37 @@ static unsigned pc_cpu_index_to_socket_id(unsigned cpu_index)
return topo.pkg_id;
}
-static const CPUArchIdList *pc_possible_cpu_arch_ids(MachineState *machine)
-{
- PCMachineState *pcms = PC_MACHINE(machine);
- assert(pcms->possible_cpus);
- return pcms->possible_cpus;
-}
-
-static HotpluggableCPUList *pc_query_hotpluggable_cpus(MachineState *machine)
+static const CPUArchIdList *pc_possible_cpu_arch_ids(MachineState *ms)
{
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)));
+ if (ms->possible_cpus) {
+ /*
+ * make sure that max_cpus hasn't changed since the first use, i.e.
+ * -smp hasn't been parsed after it
+ */
+ assert(ms->possible_cpus->len == max_cpus);
+ return ms->possible_cpus;
+ }
- for (i = 0; i < pcms->possible_cpus->len; i++) {
+ ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) +
+ sizeof(CPUArchId) * max_cpus);
+ ms->possible_cpus->len = max_cpus;
+ for (i = 0; i < ms->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;
+ ms->possible_cpus->cpus[i].vcpus_count = 1;
+ ms->possible_cpus->cpus[i].arch_id = x86_cpu_apic_id_from_index(i);
+ x86_topo_ids_from_apicid(ms->possible_cpus->cpus[i].arch_id,
+ smp_cores, smp_threads, &topo);
+ ms->possible_cpus->cpus[i].props.has_socket_id = true;
+ ms->possible_cpus->cpus[i].props.socket_id = topo.pkg_id;
+ ms->possible_cpus->cpus[i].props.has_core_id = true;
+ ms->possible_cpus->cpus[i].props.core_id = topo.core_id;
+ ms->possible_cpus->cpus[i].props.has_thread_id = true;
+ ms->possible_cpus->cpus[i].props.thread_id = topo.smt_id;
}
- return head;
+ return ms->possible_cpus;
}
static void x86_nmi(NMIState *n, int cpu_index, Error **errp)
@@ -2342,7 +2326,7 @@ 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->has_hotpluggable_cpus = true;
mc->default_boot_order = "cad";
mc->hot_add_cpu = pc_hot_add_cpu;
mc->block_default_type = IF_IDE;
generated by cgit v1.1 at 2025-01-06 05:52:25 +0000