hw/i386/ssdt-mem.dsl

   1 /*
   2  * Memory hotplug ACPI DSDT static objects definitions
   3  *
   4  * Copyright ProfitBricks GmbH 2012
   5  * Copyright (C) 2013-2014 Red Hat Inc
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, see <http://www.gnu.org/licenses/>
  19  */
  20
  21 /* This file is the basis for the ssdt_mem[] variable in src/acpi.c.
  22  * It defines the contents of the memory device object.  At
  23  * runtime, a dynamically generated SSDT will contain one copy of this
  24  * AML snippet for every possible memory device in the system.  The
  25  * objects will be placed in the \_SB_ namespace.
  26  *
  27  * In addition to the aml code generated from this file, the
  28  * src/acpi.c file creates a MTFY method with an entry for each memdevice:
  29  *     Method(MTFY, 2) {
  30  *         If (LEqual(Arg0, 0x00)) { Notify(MP00, Arg1) }
  31  *         If (LEqual(Arg0, 0x01)) { Notify(MP01, Arg1) }
  32  *         ...
  33  *     }
  34  */
  35 #include "hw/acpi/pc-hotplug.h"
  36
  37 ACPI_EXTRACT_ALL_CODE ssdm_mem_aml
  38
  39 DefinitionBlock ("ssdt-mem.aml", "SSDT", 0x02, "BXPC", "CSSDT", 0x1)
  40 {
  41
  42     External(\_SB.PCI0.MEMORY_HOPTLUG_DEVICE.MEMORY_SLOT_CRS_METHOD, MethodObj)
  43     External(\_SB.PCI0.MEMORY_HOPTLUG_DEVICE.MEMORY_SLOT_STATUS_METHOD, MethodObj)
  44     External(\_SB.PCI0.MEMORY_HOPTLUG_DEVICE.MEMORY_SLOT_OST_METHOD, MethodObj)
  45     External(\_SB.PCI0.MEMORY_HOPTLUG_DEVICE.MEMORY_SLOT_PROXIMITY_METHOD, MethodObj)
  46
  47     Scope(\_SB) {
  48 /*  v------------------ DO NOT EDIT ------------------v */
  49         ACPI_EXTRACT_DEVICE_START ssdt_mem_start
  50         ACPI_EXTRACT_DEVICE_END ssdt_mem_end
  51         ACPI_EXTRACT_DEVICE_STRING ssdt_mem_name
  52         Device(MPAA) {
  53             ACPI_EXTRACT_NAME_STRING ssdt_mem_id
  54             Name(_UID, "0xAA")
  55 /*  ^------------------ DO NOT EDIT ------------------^
  56  * Don't change the above without also updating the C code.
  57  */
  58             Name(_HID, EISAID("PNP0C80"))
  59
  60             Method(_CRS, 0) {
  61                 Return(\_SB.PCI0.MEMORY_HOPTLUG_DEVICE.MEMORY_SLOT_CRS_METHOD(_UID))
  62             }
  63
  64             Method(_STA, 0) {
  65                 Return(\_SB.PCI0.MEMORY_HOPTLUG_DEVICE.MEMORY_SLOT_STATUS_METHOD(_UID))
  66             }
  67
  68             Method(_PXM, 0) {
  69                 Return(\_SB.PCI0.MEMORY_HOPTLUG_DEVICE.MEMORY_SLOT_PROXIMITY_METHOD(_UID))
  70             }
  71
  72             Method(_OST, 3) {
  73                 \_SB.PCI0.MEMORY_HOPTLUG_DEVICE.MEMORY_SLOT_OST_METHOD(_UID, Arg0, Arg1, Arg2)
  74             }
  75         }
  76     }
  77 }