#include "qemu/osdep.h" #include "hw/acpi/memory_hotplug.h" #include "hw/acpi/pc-hotplug.h" #include "hw/mem/pc-dimm.h" #include "hw/boards.h" #include "hw/qdev-core.h" #include "trace.h" #include "qapi-event.h" #define MEMORY_SLOTS_NUMBER "MDNR" #define MEMORY_HOTPLUG_IO_REGION "HPMR" #define MEMORY_SLOT_ADDR_LOW "MRBL" #define MEMORY_SLOT_ADDR_HIGH "MRBH" #define MEMORY_SLOT_SIZE_LOW "MRLL" #define MEMORY_SLOT_SIZE_HIGH "MRLH" #define MEMORY_SLOT_PROXIMITY "MPX" #define MEMORY_SLOT_ENABLED "MES" #define MEMORY_SLOT_INSERT_EVENT "MINS" #define MEMORY_SLOT_REMOVE_EVENT "MRMV" #define MEMORY_SLOT_EJECT "MEJ" #define MEMORY_SLOT_SLECTOR "MSEL" #define MEMORY_SLOT_OST_EVENT "MOEV" #define MEMORY_SLOT_OST_STATUS "MOSC" #define MEMORY_SLOT_LOCK "MLCK" #define MEMORY_SLOT_STATUS_METHOD "MRST" #define MEMORY_SLOT_CRS_METHOD "MCRS" #define MEMORY_SLOT_OST_METHOD "MOST" #define MEMORY_SLOT_PROXIMITY_METHOD "MPXM" #define MEMORY_SLOT_EJECT_METHOD "MEJ0" #define MEMORY_SLOT_NOTIFY_METHOD "MTFY" #define MEMORY_SLOT_SCAN_METHOD "MSCN" #define MEMORY_HOTPLUG_DEVICE "MHPD" #define MEMORY_HOTPLUG_IO_LEN 24 #define MEMORY_DEVICES_CONTAINER "\\_SB.MHPC" static uint16_t memhp_io_base; static ACPIOSTInfo *acpi_memory_device_status(int slot, MemStatus *mdev) { ACPIOSTInfo *info = g_new0(ACPIOSTInfo, 1); info->slot_type = ACPI_SLOT_TYPE_DIMM; info->slot = g_strdup_printf("%d", slot); info->source = mdev->ost_event; info->status = mdev->ost_status; if (mdev->dimm) { DeviceState *dev = DEVICE(mdev->dimm); if (dev->id) { info->device = g_strdup(dev->id); info->has_device = true; } } return info; } void acpi_memory_ospm_status(MemHotplugState *mem_st, ACPIOSTInfoList ***list) { int i; for (i = 0; i < mem_st->dev_count; i++) { ACPIOSTInfoList *elem = g_new0(ACPIOSTInfoList, 1); elem->value = acpi_memory_device_status(i, &mem_st->devs[i]); elem->next = NULL; **list = elem; *list = &elem->next; } } static uint64_t acpi_memory_hotplug_read(void *opaque, hwaddr addr, unsigned int size) { uint32_t val = 0; MemHotplugState *mem_st = opaque; MemStatus *mdev; Object *o; if (mem_st->selector >= mem_st->dev_count) { trace_mhp_acpi_invalid_slot_selected(mem_st->selector); return 0; } mdev = &mem_st->devs[mem_st->selector]; o = OBJECT(mdev->dimm); switch (addr) { case 0x0: /* Lo part of phys address where DIMM is mapped */ val = o ? object_property_get_uint(o, PC_DIMM_ADDR_PROP, NULL) : 0; trace_mhp_acpi_read_addr_lo(mem_st->selector, val); break; case 0x4: /* Hi part of phys address where DIMM is mapped */ val = o ? object_property_get_uint(o, PC_DIMM_ADDR_PROP, NULL) >> 32 : 0; trace_mhp_acpi_read_addr_hi(mem_st->selector, val); break; case 0x8: /* Lo part of DIMM size */ val = o ? object_property_get_int(o, PC_DIMM_SIZE_PROP, NULL) : 0; trace_mhp_acpi_read_size_lo(mem_st->selector, val); break; case 0xc: /* Hi part of DIMM size */ val = o ? object_property_get_int(o, PC_DIMM_SIZE_PROP, NULL) >> 32 : 0; trace_mhp_acpi_read_size_hi(mem_st->selector, val); break; case 0x10: /* node proximity for _PXM method */ val = o ? object_property_get_uint(o, PC_DIMM_NODE_PROP, NULL) : 0; trace_mhp_acpi_read_pxm(mem_st->selector, val); break; case 0x14: /* pack and return is_* fields */ val |= mdev->is_enabled ? 1 : 0; val |= mdev->is_inserting ? 2 : 0; val |= mdev->is_removing ? 4 : 0; trace_mhp_acpi_read_flags(mem_st->selector, val); break; default: val = ~0; break; } return val; } static void acpi_memory_hotplug_write(void *opaque, hwaddr addr, uint64_t data, unsigned int size) { MemHotplugState *mem_st = opaque; MemStatus *mdev; ACPIOSTInfo *info; DeviceState *dev = NULL; HotplugHandler *hotplug_ctrl = NULL; Error *local_err = NULL; if (!mem_st->dev_count) { return; } if (addr) { if (mem_st->selector >= mem_st->dev_count) { trace_mhp_acpi_invalid_slot_selected(mem_st->selector); return; } } switch (addr) { case 0x0: /* DIMM slot selector */ mem_st->selector = data; trace_mhp_acpi_write_slot(mem_st->selector); break; case 0x4: /* _OST event */ mdev = &mem_st->devs[mem_st->selector]; if (data == 1) { /* TODO: handle device insert OST event */ } else if (data == 3) { /* TODO: handle device remove OST event */ } mdev->ost_event = data; trace_mhp_acpi_write_ost_ev(mem_st->selector, mdev->ost_event); break; case 0x8: /* _OST status */ mdev = &mem_st->devs[mem_st->selector]; mdev->ost_status = data; trace_mhp_acpi_write_ost_status(mem_st->selector, mdev->ost_status); /* TODO: implement memory removal on guest signal */ info = acpi_memory_device_status(mem_st->selector, mdev); qapi_event_send_acpi_device_ost(info, &error_abort); qapi_free_ACPIOSTInfo(info); break; case 0x14: /* set is_* fields */ mdev = &mem_st->devs[mem_st->selector]; if (data & 2) { /* clear insert event */ mdev->is_inserting = false; trace_mhp_acpi_clear_insert_evt(mem_st->selector); } else if (data & 4) { mdev->is_removing = false; trace_mhp_acpi_clear_remove_evt(mem_st->selector); } else if (data & 8) { if (!mdev->is_enabled) { trace_mhp_acpi_ejecting_invalid_slot(mem_st->selector); break; } dev = DEVICE(mdev->dimm); hotplug_ctrl = qdev_get_hotplug_handler(dev); /* call pc-dimm unplug cb */ hotplug_handler_unplug(hotplug_ctrl, dev, &local_err); if (local_err) { trace_mhp_acpi_pc_dimm_delete_failed(mem_st->selector); qapi_event_send_mem_unplug_error(dev->id, error_get_pretty(local_err), &error_abort); error_free(local_err); break; } trace_mhp_acpi_pc_dimm_deleted(mem_st->selector); } break; default: break; } } static const MemoryRegionOps acpi_memory_hotplug_ops = { .read = acpi_memory_hotplug_read, .write = acpi_memory_hotplug_write, .endianness = DEVICE_LITTLE_ENDIAN, .valid = { .min_access_size = 1, .max_access_size = 4, }, }; void acpi_memory_hotplug_init(MemoryRegion *as, Object *owner, MemHotplugState *state, uint16_t io_base) { MachineState *machine = MACHINE(qdev_get_machine()); state->dev_count = machine->ram_slots; if (!state->dev_count) { return; } assert(!memhp_io_base); memhp_io_base = io_base; state->devs = g_malloc0(sizeof(*state->devs) * state->dev_count); memory_region_init_io(&state->io, owner, &acpi_memory_hotplug_ops, state, "acpi-mem-hotplug", MEMORY_HOTPLUG_IO_LEN); memory_region_add_subregion(as, memhp_io_base, &state->io); } /** * acpi_memory_slot_status: * @mem_st: memory hotplug state * @dev: device * @errp: set in case of an error * * Obtain a single memory slot status. * * This function will be called by memory unplug request cb and unplug cb. */ static MemStatus * acpi_memory_slot_status(MemHotplugState *mem_st, DeviceState *dev, Error **errp) { Error *local_err = NULL; int slot = object_property_get_int(OBJECT(dev), PC_DIMM_SLOT_PROP, &local_err); if (local_err) { error_propagate(errp, local_err); return NULL; } if (slot >= mem_st->dev_count) { char *dev_path = object_get_canonical_path(OBJECT(dev)); error_setg(errp, "acpi_memory_slot_status: " "device [%s] returned invalid memory slot[%d]", dev_path, slot); g_free(dev_path); return NULL; } return &mem_st->devs[slot]; } void acpi_memory_plug_cb(HotplugHandler *hotplug_dev, MemHotplugState *mem_st, DeviceState *dev, Error **errp) { MemStatus *mdev; DeviceClass *dc = DEVICE_GET_CLASS(dev); if (!dc->hotpluggable) { return; } mdev = acpi_memory_slot_status(mem_st, dev, errp); if (!mdev) { return; } mdev->dimm = dev; mdev->is_enabled = true; if (dev->hotplugged) { mdev->is_inserting = true; acpi_send_event(DEVICE(hotplug_dev), ACPI_MEMORY_HOTPLUG_STATUS); } } void acpi_memory_unplug_request_cb(HotplugHandler *hotplug_dev, MemHotplugState *mem_st, DeviceState *dev, Error **errp) { MemStatus *mdev; mdev = acpi_memory_slot_status(mem_st, dev, errp); if (!mdev) { return; } mdev->is_removing = true; acpi_send_event(DEVICE(hotplug_dev), ACPI_MEMORY_HOTPLUG_STATUS); } void acpi_memory_unplug_cb(MemHotplugState *mem_st, DeviceState *dev, Error **errp) { MemStatus *mdev; mdev = acpi_memory_slot_status(mem_st, dev, errp); if (!mdev) { return; } mdev->is_enabled = false; mdev->dimm = NULL; } static const VMStateDescription vmstate_memhp_sts = { .name = "memory hotplug device state", .version_id = 1, .minimum_version_id = 1, .minimum_version_id_old = 1, .fields = (VMStateField[]) { VMSTATE_BOOL(is_enabled, MemStatus), VMSTATE_BOOL(is_inserting, MemStatus), VMSTATE_UINT32(ost_event, MemStatus), VMSTATE_UINT32(ost_status, MemStatus), VMSTATE_END_OF_LIST() } }; const VMStateDescription vmstate_memory_hotplug = { .name = "memory hotplug state", .version_id = 1, .minimum_version_id = 1, .minimum_version_id_old = 1, .fields = (VMStateField[]) { VMSTATE_UINT32(selector, MemHotplugState), VMSTATE_STRUCT_VARRAY_POINTER_UINT32(devs, MemHotplugState, dev_count, vmstate_memhp_sts, MemStatus), VMSTATE_END_OF_LIST() } }; void build_memory_hotplug_aml(Aml *table, uint32_t nr_mem, const char *res_root, const char *event_handler_method) { int i; Aml *ifctx; Aml *method; Aml *dev_container; Aml *mem_ctrl_dev; char *mhp_res_path; if (!memhp_io_base) { return; } mhp_res_path = g_strdup_printf("%s." MEMORY_HOTPLUG_DEVICE, res_root); mem_ctrl_dev = aml_device("%s", mhp_res_path); { Aml *crs; aml_append(mem_ctrl_dev, aml_name_decl("_HID", aml_string("PNP0A06"))); aml_append(mem_ctrl_dev, aml_name_decl("_UID", aml_string("Memory hotplug resources"))); crs = aml_resource_template(); aml_append(crs, aml_io(AML_DECODE16, memhp_io_base, memhp_io_base, 0, MEMORY_HOTPLUG_IO_LEN) ); aml_append(mem_ctrl_dev, aml_name_decl("_CRS", crs)); aml_append(mem_ctrl_dev, aml_operation_region( MEMORY_HOTPLUG_IO_REGION, AML_SYSTEM_IO, aml_int(memhp_io_base), MEMORY_HOTPLUG_IO_LEN) ); } aml_append(table, mem_ctrl_dev); dev_container = aml_device(MEMORY_DEVICES_CONTAINER); { Aml *field; Aml *one = aml_int(1); Aml *zero = aml_int(0); Aml *ret_val = aml_local(0); Aml *slot_arg0 = aml_arg(0); Aml *slots_nr = aml_name(MEMORY_SLOTS_NUMBER); Aml *ctrl_lock = aml_name(MEMORY_SLOT_LOCK); Aml *slot_selector = aml_name(MEMORY_SLOT_SLECTOR); char *mmio_path = g_strdup_printf("%s." MEMORY_HOTPLUG_IO_REGION, mhp_res_path); aml_append(dev_container, aml_name_decl("_HID", aml_string("PNP0A06"))); aml_append(dev_container, aml_name_decl("_UID", aml_string("DIMM devices"))); assert(nr_mem <= ACPI_MAX_RAM_SLOTS); aml_append(dev_container, aml_name_decl(MEMORY_SLOTS_NUMBER, aml_int(nr_mem)) ); field = aml_field(mmio_path, AML_DWORD_ACC, AML_NOLOCK, AML_PRESERVE); aml_append(field, /* read only */ aml_named_field(MEMORY_SLOT_ADDR_LOW, 32)); aml_append(field, /* read only */ aml_named_field(MEMORY_SLOT_ADDR_HIGH, 32)); aml_append(field, /* read only */ aml_named_field(MEMORY_SLOT_SIZE_LOW, 32)); aml_append(field, /* read only */ aml_named_field(MEMORY_SLOT_SIZE_HIGH, 32)); aml_append(field, /* read only */ aml_named_field(MEMORY_SLOT_PROXIMITY, 32)); aml_append(dev_container, field); field = aml_field(mmio_path, AML_BYTE_ACC, AML_NOLOCK, AML_WRITE_AS_ZEROS); aml_append(field, aml_reserved_field(160 /* bits, Offset(20) */)); aml_append(field, /* 1 if enabled, read only */ aml_named_field(MEMORY_SLOT_ENABLED, 1)); aml_append(field, /*(read) 1 if has a insert event. (write) 1 to clear event */ aml_named_field(MEMORY_SLOT_INSERT_EVENT, 1)); aml_append(field, /* (read) 1 if has a remove event. (write) 1 to clear event */ aml_named_field(MEMORY_SLOT_REMOVE_EVENT, 1)); aml_append(field, /* initiates device eject, write only */ aml_named_field(MEMORY_SLOT_EJECT, 1)); aml_append(dev_container, field); field = aml_field(mmio_path, AML_DWORD_ACC, AML_NOLOCK, AML_PRESERVE); aml_append(field, /* DIMM selector, write only */ aml_named_field(MEMORY_SLOT_SLECTOR, 32)); aml_append(field, /* _OST event code, write only */ aml_named_field(MEMORY_SLOT_OST_EVENT, 32)); aml_append(field, /* _OST status code, write only */ aml_named_field(MEMORY_SLOT_OST_STATUS, 32)); aml_append(dev_container, field); g_free(mmio_path); method = aml_method("_STA", 0, AML_NOTSERIALIZED); ifctx = aml_if(aml_equal(slots_nr, zero)); { aml_append(ifctx, aml_return(zero)); } aml_append(method, ifctx); /* present, functioning, decoding, not shown in UI */ aml_append(method, aml_return(aml_int(0xB))); aml_append(dev_container, method); aml_append(dev_container, aml_mutex(MEMORY_SLOT_LOCK, 0)); method = aml_method(MEMORY_SLOT_SCAN_METHOD, 0, AML_NOTSERIALIZED); { Aml *else_ctx; Aml *while_ctx; Aml *idx = aml_local(0); Aml *eject_req = aml_int(3); Aml *dev_chk = aml_int(1); ifctx = aml_if(aml_equal(slots_nr, zero)); { aml_append(ifctx, aml_return(zero)); } aml_append(method, ifctx); aml_append(method, aml_store(zero, idx)); aml_append(method, aml_acquire(ctrl_lock, 0xFFFF)); /* build AML that: * loops over all slots and Notifies DIMMs with * Device Check or Eject Request notifications if * slot has corresponding status bit set and clears * slot status. */ while_ctx = aml_while(aml_lless(idx, slots_nr)); { Aml *ins_evt = aml_name(MEMORY_SLOT_INSERT_EVENT); Aml *rm_evt = aml_name(MEMORY_SLOT_REMOVE_EVENT); aml_append(while_ctx, aml_store(idx, slot_selector)); ifctx = aml_if(aml_equal(ins_evt, one)); { aml_append(ifctx, aml_call2(MEMORY_SLOT_NOTIFY_METHOD, idx, dev_chk)); aml_append(ifctx, aml_store(one, ins_evt)); } aml_append(while_ctx, ifctx); else_ctx = aml_else(); ifctx = aml_if(aml_equal(rm_evt, one)); { aml_append(ifctx, aml_call2(MEMORY_SLOT_NOTIFY_METHOD, idx, eject_req)); aml_append(ifctx, aml_store(one, rm_evt)); } aml_append(else_ctx, ifctx); aml_append(while_ctx, else_ctx); aml_append(while_ctx, aml_add(idx, one, idx)); } aml_append(method, while_ctx); aml_append(method, aml_release(ctrl_lock)); aml_append(method, aml_return(one)); } aml_append(dev_container, method); method = aml_method(MEMORY_SLOT_STATUS_METHOD, 1, AML_NOTSERIALIZED); { Aml *slot_enabled = aml_name(MEMORY_SLOT_ENABLED); aml_append(method, aml_store(zero, ret_val)); aml_append(method, aml_acquire(ctrl_lock, 0xFFFF)); aml_append(method, aml_store(aml_to_integer(slot_arg0), slot_selector)); ifctx = aml_if(aml_equal(slot_enabled, one)); { aml_append(ifctx, aml_store(aml_int(0xF), ret_val)); } aml_append(method, ifctx); aml_append(method, aml_release(ctrl_lock)); aml_append(method, aml_return(ret_val)); } aml_append(dev_container, method); method = aml_method(MEMORY_SLOT_CRS_METHOD, 1, AML_SERIALIZED); { Aml *mr64 = aml_name("MR64"); Aml *mr32 = aml_name("MR32"); Aml *crs_tmpl = aml_resource_template(); Aml *minl = aml_name("MINL"); Aml *minh = aml_name("MINH"); Aml *maxl = aml_name("MAXL"); Aml *maxh = aml_name("MAXH"); Aml *lenl = aml_name("LENL"); Aml *lenh = aml_name("LENH"); aml_append(method, aml_acquire(ctrl_lock, 0xFFFF)); aml_append(method, aml_store(aml_to_integer(slot_arg0), slot_selector)); aml_append(crs_tmpl, aml_qword_memory(AML_POS_DECODE, AML_MIN_FIXED, AML_MAX_FIXED, AML_CACHEABLE, AML_READ_WRITE, 0, 0x0, 0xFFFFFFFFFFFFFFFEULL, 0, 0xFFFFFFFFFFFFFFFFULL)); aml_append(method, aml_name_decl("MR64", crs_tmpl)); aml_append(method, aml_create_dword_field(mr64, aml_int(14), "MINL")); aml_append(method, aml_create_dword_field(mr64, aml_int(18), "MINH")); aml_append(method, aml_create_dword_field(mr64, aml_int(38), "LENL")); aml_append(method, aml_create_dword_field(mr64, aml_int(42), "LENH")); aml_append(method, aml_create_dword_field(mr64, aml_int(22), "MAXL")); aml_append(method, aml_create_dword_field(mr64, aml_int(26), "MAXH")); aml_append(method, aml_store(aml_name(MEMORY_SLOT_ADDR_HIGH), minh)); aml_append(method, aml_store(aml_name(MEMORY_SLOT_ADDR_LOW), minl)); aml_append(method, aml_store(aml_name(MEMORY_SLOT_SIZE_HIGH), lenh)); aml_append(method, aml_store(aml_name(MEMORY_SLOT_SIZE_LOW), lenl)); /* 64-bit math: MAX = MIN + LEN - 1 */ aml_append(method, aml_add(minl, lenl, maxl)); aml_append(method, aml_add(minh, lenh, maxh)); ifctx = aml_if(aml_lless(maxl, minl)); { aml_append(ifctx, aml_add(maxh, one, maxh)); } aml_append(method, ifctx); ifctx = aml_if(aml_lless(maxl, one)); { aml_append(ifctx, aml_subtract(maxh, one, maxh)); } aml_append(method, ifctx); aml_append(method, aml_subtract(maxl, one, maxl)); /* return 32-bit _CRS if addr/size is in low mem */ /* TODO: remove it since all hotplugged DIMMs are in high mem */ ifctx = aml_if(aml_equal(maxh, zero)); { crs_tmpl = aml_resource_template(); aml_append(crs_tmpl, aml_dword_memory(AML_POS_DECODE, AML_MIN_FIXED, AML_MAX_FIXED, AML_CACHEABLE, AML_READ_WRITE, 0, 0x0, 0xFFFFFFFE, 0, 0xFFFFFFFF)); aml_append(ifctx, aml_name_decl("MR32", crs_tmpl)); aml_append(ifctx, aml_create_dword_field(mr32, aml_int(10), "MIN")); aml_append(ifctx, aml_create_dword_field(mr32, aml_int(14), "MAX")); aml_append(ifctx, aml_create_dword_field(mr32, aml_int(22), "LEN")); aml_append(ifctx, aml_store(minl, aml_name("MIN"))); aml_append(ifctx, aml_store(maxl, aml_name("MAX"))); aml_append(ifctx, aml_store(lenl, aml_name("LEN"))); aml_append(ifctx, aml_release(ctrl_lock)); aml_append(ifctx, aml_return(mr32)); } aml_append(method, ifctx); aml_append(method, aml_release(ctrl_lock)); aml_append(method, aml_return(mr64)); } aml_append(dev_container, method); method = aml_method(MEMORY_SLOT_PROXIMITY_METHOD, 1, AML_NOTSERIALIZED); { Aml *proximity = aml_name(MEMORY_SLOT_PROXIMITY); aml_append(method, aml_acquire(ctrl_lock, 0xFFFF)); aml_append(method, aml_store(aml_to_integer(slot_arg0), slot_selector)); aml_append(method, aml_store(proximity, ret_val)); aml_append(method, aml_release(ctrl_lock)); aml_append(method, aml_return(ret_val)); } aml_append(dev_container, method); method = aml_method(MEMORY_SLOT_OST_METHOD, 4, AML_NOTSERIALIZED); { Aml *ost_evt = aml_name(MEMORY_SLOT_OST_EVENT); Aml *ost_status = aml_name(MEMORY_SLOT_OST_STATUS); aml_append(method, aml_acquire(ctrl_lock, 0xFFFF)); aml_append(method, aml_store(aml_to_integer(slot_arg0), slot_selector)); aml_append(method, aml_store(aml_arg(1), ost_evt)); aml_append(method, aml_store(aml_arg(2), ost_status)); aml_append(method, aml_release(ctrl_lock)); } aml_append(dev_container, method); method = aml_method(MEMORY_SLOT_EJECT_METHOD, 2, AML_NOTSERIALIZED); { Aml *eject = aml_name(MEMORY_SLOT_EJECT); aml_append(method, aml_acquire(ctrl_lock, 0xFFFF)); aml_append(method, aml_store(aml_to_integer(slot_arg0), slot_selector)); aml_append(method, aml_store(one, eject)); aml_append(method, aml_release(ctrl_lock)); } aml_append(dev_container, method); /* build memory devices */ for (i = 0; i < nr_mem; i++) { Aml *dev; const char *s; dev = aml_device("MP%02X", i); aml_append(dev, aml_name_decl("_UID", aml_string("0x%02X", i))); aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0C80"))); method = aml_method("_CRS", 0, AML_NOTSERIALIZED); s = MEMORY_SLOT_CRS_METHOD; aml_append(method, aml_return(aml_call1(s, aml_name("_UID")))); aml_append(dev, method); method = aml_method("_STA", 0, AML_NOTSERIALIZED); s = MEMORY_SLOT_STATUS_METHOD; aml_append(method, aml_return(aml_call1(s, aml_name("_UID")))); aml_append(dev, method); method = aml_method("_PXM", 0, AML_NOTSERIALIZED); s = MEMORY_SLOT_PROXIMITY_METHOD; aml_append(method, aml_return(aml_call1(s, aml_name("_UID")))); aml_append(dev, method); method = aml_method("_OST", 3, AML_NOTSERIALIZED); s = MEMORY_SLOT_OST_METHOD; aml_append(method, aml_return(aml_call4( s, aml_name("_UID"), aml_arg(0), aml_arg(1), aml_arg(2) ))); aml_append(dev, method); method = aml_method("_EJ0", 1, AML_NOTSERIALIZED); s = MEMORY_SLOT_EJECT_METHOD; aml_append(method, aml_return(aml_call2( s, aml_name("_UID"), aml_arg(0)))); aml_append(dev, method); aml_append(dev_container, dev); } /* build Method(MEMORY_SLOT_NOTIFY_METHOD, 2) { * If (LEqual(Arg0, 0x00)) {Notify(MP00, Arg1)} ... } */ method = aml_method(MEMORY_SLOT_NOTIFY_METHOD, 2, AML_NOTSERIALIZED); for (i = 0; i < nr_mem; i++) { ifctx = aml_if(aml_equal(aml_arg(0), aml_int(i))); aml_append(ifctx, aml_notify(aml_name("MP%.02X", i), aml_arg(1)) ); aml_append(method, ifctx); } aml_append(dev_container, method); } aml_append(table, dev_container); method = aml_method(event_handler_method, 0, AML_NOTSERIALIZED); aml_append(method, aml_call0(MEMORY_DEVICES_CONTAINER "." MEMORY_SLOT_SCAN_METHOD)); aml_append(table, method); g_free(mhp_res_path); }