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qemu/hw/acpi/memory_hotplug.c

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#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_uint(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_uint(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);
}
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