bef3492d11
- provides static SSDT object for memory hotplug that can handle upto 256 hotplugable memory slots - SSDT template for memory devices and runtime generator of them in SSDT table. Signed-off-by: Vasilis Liaskovitis <vasilis.liaskovitis@profitbricks.com> Signed-off-by: Igor Mammedov <imammedo@redhat.com> Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
78 lines
2.9 KiB
Plaintext
78 lines
2.9 KiB
Plaintext
/*
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* Memory hotplug ACPI DSDT static objects definitions
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*
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* Copyright ProfitBricks GmbH 2012
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* Copyright (C) 2013-2014 Red Hat Inc
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>
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*/
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/* This file is the basis for the ssdt_mem[] variable in src/acpi.c.
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* It defines the contents of the memory device object. At
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* runtime, a dynamically generated SSDT will contain one copy of this
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* AML snippet for every possible memory device in the system. The
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* objects will be placed in the \_SB_ namespace.
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*
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* In addition to the aml code generated from this file, the
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* src/acpi.c file creates a MTFY method with an entry for each memdevice:
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* Method(MTFY, 2) {
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* If (LEqual(Arg0, 0x00)) { Notify(MP00, Arg1) }
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* If (LEqual(Arg0, 0x01)) { Notify(MP01, Arg1) }
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* ...
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* }
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*/
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#include "hw/acpi/pc-hotplug.h"
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ACPI_EXTRACT_ALL_CODE ssdm_mem_aml
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DefinitionBlock ("ssdt-mem.aml", "SSDT", 0x02, "BXPC", "CSSDT", 0x1)
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{
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External(\_SB.PCI0.MEMORY_HOPTLUG_DEVICE.MEMORY_SLOT_CRS_METHOD, MethodObj)
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External(\_SB.PCI0.MEMORY_HOPTLUG_DEVICE.MEMORY_SLOT_STATUS_METHOD, MethodObj)
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External(\_SB.PCI0.MEMORY_HOPTLUG_DEVICE.MEMORY_SLOT_OST_METHOD, MethodObj)
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External(\_SB.PCI0.MEMORY_HOPTLUG_DEVICE.MEMORY_SLOT_PROXIMITY_METHOD, MethodObj)
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Scope(\_SB) {
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/* v------------------ DO NOT EDIT ------------------v */
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ACPI_EXTRACT_DEVICE_START ssdt_mem_start
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ACPI_EXTRACT_DEVICE_END ssdt_mem_end
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ACPI_EXTRACT_DEVICE_STRING ssdt_mem_name
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Device(MPAA) {
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ACPI_EXTRACT_NAME_STRING ssdt_mem_id
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Name(_UID, "0xAA")
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/* ^------------------ DO NOT EDIT ------------------^
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* Don't change the above without also updating the C code.
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*/
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Name(_HID, EISAID("PNP0C80"))
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Method(_CRS, 0) {
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Return(\_SB.PCI0.MEMORY_HOPTLUG_DEVICE.MEMORY_SLOT_CRS_METHOD(_UID))
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}
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Method(_STA, 0) {
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Return(\_SB.PCI0.MEMORY_HOPTLUG_DEVICE.MEMORY_SLOT_STATUS_METHOD(_UID))
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}
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Method(_PXM, 0) {
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Return(\_SB.PCI0.MEMORY_HOPTLUG_DEVICE.MEMORY_SLOT_PROXIMITY_METHOD(_UID))
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}
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Method(_OST, 3) {
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\_SB.PCI0.MEMORY_HOPTLUG_DEVICE.MEMORY_SLOT_OST_METHOD(_UID, Arg0, Arg1, Arg2)
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}
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}
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}
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}
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