static void build_srat(GArray *table_data, BIOSLinker *linker, VirtGuestInfo *guest_info) { AcpiSystemResourceAffinityTable *srat; AcpiSratProcessorGiccAffinity *core; AcpiSratMemoryAffinity *numamem; int i, j, srat_start; uint64_t mem_base; uint32_t *cpu_node = g_malloc0(guest_info->smp_cpus * sizeof(uint32_t)); for (i = 0; i < guest_info->smp_cpus; i++) { j = numa_get_node_for_cpu(i); if (j < nb_numa_nodes) { cpu_node[i] = j; } } srat_start = table_data->len; srat = acpi_data_push(table_data, sizeof(*srat)); srat->reserved1 = cpu_to_le32(1); for (i = 0; i < guest_info->smp_cpus; ++i) { core = acpi_data_push(table_data, sizeof(*core)); core->type = ACPI_SRAT_PROCESSOR_GICC; core->length = sizeof(*core); core->proximity = cpu_to_le32(cpu_node[i]); core->acpi_processor_uid = cpu_to_le32(i); core->flags = cpu_to_le32(1); } g_free(cpu_node); mem_base = guest_info->memmap[VIRT_MEM].base; for (i = 0; i < nb_numa_nodes; ++i) { numamem = acpi_data_push(table_data, sizeof(*numamem)); build_srat_memory(numamem, mem_base, numa_info[i].node_mem, i, MEM_AFFINITY_ENABLED); mem_base += numa_info[i].node_mem; } build_header(linker, table_data, (void *)srat, "SRAT", table_data->len - srat_start, 3, NULL, NULL); }
void build_cpus_aml(Aml *table, MachineState *machine, CPUHotplugFeatures opts, hwaddr io_base, const char *res_root, const char *event_handler_method) { Aml *ifctx; Aml *field; Aml *method; Aml *cpu_ctrl_dev; Aml *cpus_dev; Aml *zero = aml_int(0); Aml *one = aml_int(1); Aml *sb_scope = aml_scope("_SB"); MachineClass *mc = MACHINE_GET_CLASS(machine); CPUArchIdList *arch_ids = mc->possible_cpu_arch_ids(machine); char *cphp_res_path = g_strdup_printf("%s." CPUHP_RES_DEVICE, res_root); Object *obj = object_resolve_path_type("", TYPE_ACPI_DEVICE_IF, NULL); AcpiDeviceIfClass *adevc = ACPI_DEVICE_IF_GET_CLASS(obj); AcpiDeviceIf *adev = ACPI_DEVICE_IF(obj); cpu_ctrl_dev = aml_device("%s", cphp_res_path); { Aml *crs; aml_append(cpu_ctrl_dev, aml_name_decl("_HID", aml_eisaid("PNP0A06"))); aml_append(cpu_ctrl_dev, aml_name_decl("_UID", aml_string("CPU Hotplug resources"))); aml_append(cpu_ctrl_dev, aml_mutex(CPU_LOCK, 0)); crs = aml_resource_template(); aml_append(crs, aml_io(AML_DECODE16, io_base, io_base, 1, ACPI_CPU_HOTPLUG_REG_LEN)); aml_append(cpu_ctrl_dev, aml_name_decl("_CRS", crs)); /* declare CPU hotplug MMIO region with related access fields */ aml_append(cpu_ctrl_dev, aml_operation_region("PRST", AML_SYSTEM_IO, aml_int(io_base), ACPI_CPU_HOTPLUG_REG_LEN)); field = aml_field("PRST", AML_BYTE_ACC, AML_NOLOCK, AML_WRITE_AS_ZEROS); aml_append(field, aml_reserved_field(ACPI_CPU_FLAGS_OFFSET_RW * 8)); /* 1 if enabled, read only */ aml_append(field, aml_named_field(CPU_ENABLED, 1)); /* (read) 1 if has a insert event. (write) 1 to clear event */ aml_append(field, aml_named_field(CPU_INSERT_EVENT, 1)); /* (read) 1 if has a remove event. (write) 1 to clear event */ aml_append(field, aml_named_field(CPU_REMOVE_EVENT, 1)); /* initiates device eject, write only */ aml_append(field, aml_named_field(CPU_EJECT_EVENT, 1)); aml_append(field, aml_reserved_field(4)); aml_append(field, aml_named_field(CPU_COMMAND, 8)); aml_append(cpu_ctrl_dev, field); field = aml_field("PRST", AML_DWORD_ACC, AML_NOLOCK, AML_PRESERVE); /* CPU selector, write only */ aml_append(field, aml_named_field(CPU_SELECTOR, 32)); /* flags + cmd + 2byte align */ aml_append(field, aml_reserved_field(4 * 8)); aml_append(field, aml_named_field(CPU_DATA, 32)); aml_append(cpu_ctrl_dev, field); if (opts.has_legacy_cphp) { method = aml_method("_INI", 0, AML_SERIALIZED); /* switch off legacy CPU hotplug HW and use new one, * on reboot system is in new mode and writing 0 * in CPU_SELECTOR selects BSP, which is NOP at * the time _INI is called */ aml_append(method, aml_store(zero, aml_name(CPU_SELECTOR))); aml_append(cpu_ctrl_dev, method); } } aml_append(sb_scope, cpu_ctrl_dev); cpus_dev = aml_device("\\_SB.CPUS"); { int i; Aml *ctrl_lock = aml_name("%s.%s", cphp_res_path, CPU_LOCK); Aml *cpu_selector = aml_name("%s.%s", cphp_res_path, CPU_SELECTOR); Aml *is_enabled = aml_name("%s.%s", cphp_res_path, CPU_ENABLED); Aml *cpu_cmd = aml_name("%s.%s", cphp_res_path, CPU_COMMAND); Aml *cpu_data = aml_name("%s.%s", cphp_res_path, CPU_DATA); Aml *ins_evt = aml_name("%s.%s", cphp_res_path, CPU_INSERT_EVENT); Aml *rm_evt = aml_name("%s.%s", cphp_res_path, CPU_REMOVE_EVENT); Aml *ej_evt = aml_name("%s.%s", cphp_res_path, CPU_EJECT_EVENT); aml_append(cpus_dev, aml_name_decl("_HID", aml_string("ACPI0010"))); aml_append(cpus_dev, aml_name_decl("_CID", aml_eisaid("PNP0A05"))); method = aml_method(CPU_NOTIFY_METHOD, 2, AML_NOTSERIALIZED); for (i = 0; i < arch_ids->len; i++) { Aml *cpu = aml_name(CPU_NAME_FMT, i); Aml *uid = aml_arg(0); Aml *event = aml_arg(1); ifctx = aml_if(aml_equal(uid, aml_int(i))); { aml_append(ifctx, aml_notify(cpu, event)); } aml_append(method, ifctx); } aml_append(cpus_dev, method); method = aml_method(CPU_STS_METHOD, 1, AML_SERIALIZED); { Aml *idx = aml_arg(0); Aml *sta = aml_local(0); aml_append(method, aml_acquire(ctrl_lock, 0xFFFF)); aml_append(method, aml_store(idx, cpu_selector)); aml_append(method, aml_store(zero, sta)); ifctx = aml_if(aml_equal(is_enabled, one)); { aml_append(ifctx, aml_store(aml_int(0xF), sta)); } aml_append(method, ifctx); aml_append(method, aml_release(ctrl_lock)); aml_append(method, aml_return(sta)); } aml_append(cpus_dev, method); method = aml_method(CPU_EJECT_METHOD, 1, AML_SERIALIZED); { Aml *idx = aml_arg(0); aml_append(method, aml_acquire(ctrl_lock, 0xFFFF)); aml_append(method, aml_store(idx, cpu_selector)); aml_append(method, aml_store(one, ej_evt)); aml_append(method, aml_release(ctrl_lock)); } aml_append(cpus_dev, method); method = aml_method(CPU_SCAN_METHOD, 0, AML_SERIALIZED); { Aml *else_ctx; Aml *while_ctx; Aml *has_event = aml_local(0); Aml *dev_chk = aml_int(1); Aml *eject_req = aml_int(3); Aml *next_cpu_cmd = aml_int(CPHP_GET_NEXT_CPU_WITH_EVENT_CMD); aml_append(method, aml_acquire(ctrl_lock, 0xFFFF)); aml_append(method, aml_store(one, has_event)); while_ctx = aml_while(aml_equal(has_event, one)); { /* clear loop exit condition, ins_evt/rm_evt checks * will set it to 1 while next_cpu_cmd returns a CPU * with events */ aml_append(while_ctx, aml_store(zero, has_event)); aml_append(while_ctx, aml_store(next_cpu_cmd, cpu_cmd)); ifctx = aml_if(aml_equal(ins_evt, one)); { aml_append(ifctx, aml_call2(CPU_NOTIFY_METHOD, cpu_data, dev_chk)); aml_append(ifctx, aml_store(one, ins_evt)); aml_append(ifctx, aml_store(one, has_event)); } aml_append(while_ctx, ifctx); else_ctx = aml_else(); ifctx = aml_if(aml_equal(rm_evt, one)); { aml_append(ifctx, aml_call2(CPU_NOTIFY_METHOD, cpu_data, eject_req)); aml_append(ifctx, aml_store(one, rm_evt)); aml_append(ifctx, aml_store(one, has_event)); } aml_append(else_ctx, ifctx); aml_append(while_ctx, else_ctx); } aml_append(method, while_ctx); aml_append(method, aml_release(ctrl_lock)); } aml_append(cpus_dev, method); method = aml_method(CPU_OST_METHOD, 4, AML_SERIALIZED); { Aml *uid = aml_arg(0); Aml *ev_cmd = aml_int(CPHP_OST_EVENT_CMD); Aml *st_cmd = aml_int(CPHP_OST_STATUS_CMD); aml_append(method, aml_acquire(ctrl_lock, 0xFFFF)); aml_append(method, aml_store(uid, cpu_selector)); aml_append(method, aml_store(ev_cmd, cpu_cmd)); aml_append(method, aml_store(aml_arg(1), cpu_data)); aml_append(method, aml_store(st_cmd, cpu_cmd)); aml_append(method, aml_store(aml_arg(2), cpu_data)); aml_append(method, aml_release(ctrl_lock)); } aml_append(cpus_dev, method); /* build Processor object for each processor */ for (i = 0; i < arch_ids->len; i++) { int j; Aml *dev; Aml *uid = aml_int(i); GArray *madt_buf = g_array_new(0, 1, 1); int arch_id = arch_ids->cpus[i].arch_id; if (opts.apci_1_compatible && arch_id < 255) { dev = aml_processor(i, 0, 0, CPU_NAME_FMT, i); } else { dev = aml_device(CPU_NAME_FMT, i); aml_append(dev, aml_name_decl("_HID", aml_string("ACPI0007"))); aml_append(dev, aml_name_decl("_UID", uid)); } method = aml_method("_STA", 0, AML_SERIALIZED); aml_append(method, aml_return(aml_call1(CPU_STS_METHOD, uid))); aml_append(dev, method); /* build _MAT object */ assert(adevc && adevc->madt_cpu); adevc->madt_cpu(adev, i, arch_ids, madt_buf); switch (madt_buf->data[0]) { case ACPI_APIC_PROCESSOR: { AcpiMadtProcessorApic *apic = (void *)madt_buf->data; apic->flags = cpu_to_le32(1); break; } default: assert(0); } aml_append(dev, aml_name_decl("_MAT", aml_buffer(madt_buf->len, (uint8_t *)madt_buf->data))); g_array_free(madt_buf, true); method = aml_method("_EJ0", 1, AML_NOTSERIALIZED); aml_append(method, aml_call1(CPU_EJECT_METHOD, uid)); aml_append(dev, method); method = aml_method("_OST", 3, AML_SERIALIZED); aml_append(method, aml_call4(CPU_OST_METHOD, uid, aml_arg(0), aml_arg(1), aml_arg(2)) ); aml_append(dev, method); /* Linux guests discard SRAT info for non-present CPUs * as a result _PXM is required for all CPUs which might * be hot-plugged. For simplicity, add it for all CPUs. */ j = numa_get_node_for_cpu(i); if (j < nb_numa_nodes) { aml_append(dev, aml_name_decl("_PXM", aml_int(j))); } aml_append(cpus_dev, dev); } } aml_append(sb_scope, cpus_dev); aml_append(table, sb_scope); method = aml_method(event_handler_method, 0, AML_NOTSERIALIZED); aml_append(method, aml_call0("\\_SB.CPUS." CPU_SCAN_METHOD)); aml_append(table, method); g_free(cphp_res_path); g_free(arch_ids); }