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Diffstat (limited to 'hw/i386/pc.c')
-rw-r--r--hw/i386/pc.c97
1 files changed, 63 insertions, 34 deletions
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 56ec6cd6c6..2ac97c4f29 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -199,7 +199,7 @@ static void pic_irq_request(void *opaque, int irq, int level)
#define REG_EQUIPMENT_BYTE 0x14
-static int cmos_get_fd_drive_type(FloppyDriveType fd0)
+int cmos_get_fd_drive_type(FloppyDriveType fd0)
{
int val;
@@ -699,18 +699,6 @@ static uint32_t x86_cpu_apic_id_from_index(unsigned int cpu_index)
}
}
-/* Calculates the limit to CPU APIC ID values
- *
- * This function returns the limit for the APIC ID value, so that all
- * CPU APIC IDs are < pc_apic_id_limit().
- *
- * This is used for FW_CFG_MAX_CPUS. See comments on bochs_bios_init().
- */
-static unsigned int pc_apic_id_limit(unsigned int max_cpus)
-{
- return x86_cpu_apic_id_from_index(max_cpus - 1) + 1;
-}
-
static void pc_build_smbios(FWCfgState *fw_cfg)
{
uint8_t *smbios_tables, *smbios_anchor;
@@ -748,12 +736,11 @@ static void pc_build_smbios(FWCfgState *fw_cfg)
}
}
-static FWCfgState *bochs_bios_init(AddressSpace *as)
+static FWCfgState *bochs_bios_init(AddressSpace *as, PCMachineState *pcms)
{
FWCfgState *fw_cfg;
uint64_t *numa_fw_cfg;
int i, j;
- unsigned int apic_id_limit = pc_apic_id_limit(max_cpus);
fw_cfg = fw_cfg_init_io_dma(FW_CFG_IO_BASE, FW_CFG_IO_BASE + 4, as);
@@ -771,7 +758,7 @@ static FWCfgState *bochs_bios_init(AddressSpace *as)
* [1] The only kind of "CPU identifier" used between SeaBIOS and QEMU is
* the APIC ID, not the "CPU index"
*/
- fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)apic_id_limit);
+ fw_cfg_add_i16(fw_cfg, FW_CFG_MAX_CPUS, (uint16_t)pcms->apic_id_limit);
fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
fw_cfg_add_bytes(fw_cfg, FW_CFG_ACPI_TABLES,
acpi_tables, acpi_tables_len);
@@ -789,11 +776,11 @@ static FWCfgState *bochs_bios_init(AddressSpace *as)
* of nodes, one word for each VCPU->node and one word for each node to
* hold the amount of memory.
*/
- numa_fw_cfg = g_new0(uint64_t, 1 + apic_id_limit + nb_numa_nodes);
+ numa_fw_cfg = g_new0(uint64_t, 1 + pcms->apic_id_limit + nb_numa_nodes);
numa_fw_cfg[0] = cpu_to_le64(nb_numa_nodes);
for (i = 0; i < max_cpus; i++) {
unsigned int apic_id = x86_cpu_apic_id_from_index(i);
- assert(apic_id < apic_id_limit);
+ assert(apic_id < pcms->apic_id_limit);
for (j = 0; j < nb_numa_nodes; j++) {
if (test_bit(i, numa_info[j].node_cpu)) {
numa_fw_cfg[apic_id + 1] = cpu_to_le64(j);
@@ -802,10 +789,11 @@ static FWCfgState *bochs_bios_init(AddressSpace *as)
}
}
for (i = 0; i < nb_numa_nodes; i++) {
- numa_fw_cfg[apic_id_limit + 1 + i] = cpu_to_le64(numa_info[i].node_mem);
+ numa_fw_cfg[pcms->apic_id_limit + 1 + i] =
+ cpu_to_le64(numa_info[i].node_mem);
}
fw_cfg_add_bytes(fw_cfg, FW_CFG_NUMA, numa_fw_cfg,
- (1 + apic_id_limit + nb_numa_nodes) *
+ (1 + pcms->apic_id_limit + nb_numa_nodes) *
sizeof(*numa_fw_cfg));
return fw_cfg;
@@ -1119,7 +1107,6 @@ void pc_cpus_init(PCMachineState *pcms)
int i;
X86CPU *cpu = NULL;
MachineState *machine = MACHINE(pcms);
- unsigned long apic_id_limit;
/* init CPUs */
if (machine->cpu_model == NULL) {
@@ -1130,17 +1117,31 @@ void pc_cpus_init(PCMachineState *pcms)
#endif
}
- apic_id_limit = pc_apic_id_limit(max_cpus);
- if (apic_id_limit > ACPI_CPU_HOTPLUG_ID_LIMIT) {
- error_report("max_cpus is too large. APIC ID of last CPU is %lu",
- apic_id_limit - 1);
+ /* Calculates the limit to CPU APIC ID values
+ *
+ * Limit for the APIC ID value, so that all
+ * CPU APIC IDs are < pcms->apic_id_limit.
+ *
+ * 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;
+ if (pcms->apic_id_limit > ACPI_CPU_HOTPLUG_ID_LIMIT) {
+ error_report("max_cpus is too large. APIC ID of last CPU is %u",
+ pcms->apic_id_limit - 1);
exit(1);
}
- for (i = 0; i < smp_cpus; i++) {
- cpu = pc_new_cpu(machine->cpu_model, x86_cpu_apic_id_from_index(i),
- &error_fatal);
- object_unref(OBJECT(cpu));
+ 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) {
+ cpu = pc_new_cpu(machine->cpu_model, x86_cpu_apic_id_from_index(i),
+ &error_fatal);
+ pcms->possible_cpus->cpus[i].cpu = CPU(cpu);
+ object_unref(OBJECT(cpu));
+ }
}
/* tell smbios about cpuid version and features */
@@ -1186,7 +1187,6 @@ void pc_guest_info_init(PCMachineState *pcms)
{
int i, j;
- pcms->apic_id_limit = pc_apic_id_limit(max_cpus);
pcms->apic_xrupt_override = kvm_allows_irq0_override();
pcms->numa_nodes = nb_numa_nodes;
pcms->node_mem = g_malloc0(pcms->numa_nodes *
@@ -1371,7 +1371,7 @@ void pc_memory_init(PCMachineState *pcms,
option_rom_mr,
1);
- fw_cfg = bochs_bios_init(&address_space_memory);
+ fw_cfg = bochs_bios_init(&address_space_memory, pcms);
rom_set_fw(fw_cfg);
@@ -1664,9 +1664,19 @@ static void pc_dimm_unplug(HotplugHandler *hotplug_dev,
error_propagate(errp, local_err);
}
+static int pc_apic_cmp(const void *a, const void *b)
+{
+ CPUArchId *apic_a = (CPUArchId *)a;
+ CPUArchId *apic_b = (CPUArchId *)b;
+
+ return apic_a->arch_id - apic_b->arch_id;
+}
+
static void pc_cpu_plug(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
+ CPUClass *cc = CPU_GET_CLASS(dev);
+ CPUArchId apic_id, *found_cpu;
HotplugHandlerClass *hhc;
Error *local_err = NULL;
PCMachineState *pcms = PC_MACHINE(hotplug_dev);
@@ -1689,6 +1699,13 @@ static void pc_cpu_plug(HotplugHandler *hotplug_dev,
/* increment the number of CPUs */
rtc_set_memory(pcms->rtc, 0x5f, rtc_get_memory(pcms->rtc, 0x5f) + 1);
+
+ apic_id.arch_id = cc->get_arch_id(CPU(dev));
+ found_cpu = bsearch(&apic_id, pcms->possible_cpus->cpus,
+ pcms->possible_cpus->len, sizeof(*pcms->possible_cpus->cpus),
+ pc_apic_cmp);
+ assert(found_cpu);
+ found_cpu->cpu = CPU(dev);
out:
error_propagate(errp, local_err);
}
@@ -1853,14 +1870,14 @@ static bool pc_machine_get_nvdimm(Object *obj, Error **errp)
{
PCMachineState *pcms = PC_MACHINE(obj);
- return pcms->nvdimm;
+ return pcms->acpi_nvdimm_state.is_enabled;
}
static void pc_machine_set_nvdimm(Object *obj, bool value, Error **errp)
{
PCMachineState *pcms = PC_MACHINE(obj);
- pcms->nvdimm = value;
+ pcms->acpi_nvdimm_state.is_enabled = value;
}
static void pc_machine_initfn(Object *obj)
@@ -1899,7 +1916,7 @@ static void pc_machine_initfn(Object *obj)
&error_abort);
/* nvdimm is disabled on default. */
- pcms->nvdimm = false;
+ pcms->acpi_nvdimm_state.is_enabled = false;
object_property_add_bool(obj, PC_MACHINE_NVDIMM, pc_machine_get_nvdimm,
pc_machine_set_nvdimm, &error_abort);
}
@@ -1931,6 +1948,17 @@ static unsigned pc_cpu_index_to_socket_id(unsigned cpu_index)
return topo.pkg_id;
}
+static CPUArchIdList *pc_possible_cpu_arch_ids(MachineState *machine)
+{
+ PCMachineState *pcms = PC_MACHINE(machine);
+ int len = sizeof(CPUArchIdList) +
+ sizeof(CPUArchId) * (pcms->possible_cpus->len);
+ CPUArchIdList *list = g_malloc(len);
+
+ memcpy(list, pcms->possible_cpus, len);
+ return list;
+}
+
static void pc_machine_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
@@ -1953,6 +1981,7 @@ static void pc_machine_class_init(ObjectClass *oc, void *data)
pcmc->save_tsc_khz = true;
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->default_boot_order = "cad";
mc->hot_add_cpu = pc_hot_add_cpu;
mc->max_cpus = 255;
generated by cgit v1.2.3 (git 2.26.2) at 2025-03-09 06:47:09 +0000