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| author | Liu <yun.y.liu@intel.com> | 2020-05-07 14:42:03 +0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2022-04-05 00:42:38 +0000 |
| commit | ef059559960700e36619c69cce38eb2cdd1a9a4a (patch) | |
| tree | d7403ff1c68c409c45678b2fe0e5758f41ee5b3b /PrmPkg/PrmLoaderDxe/Prm.asl | |
| parent | a6f8946bc9d1155030fa84f327ac1cbb00a20061 (diff) | |
| download | edk2-ef059559960700e36619c69cce38eb2cdd1a9a4a.tar.gz edk2-ef059559960700e36619c69cce38eb2cdd1a9a4a.tar.bz2 edk2-ef059559960700e36619c69cce38eb2cdd1a9a4a.zip | |
PrmPkg: Publish PRM operation region to support PRM ACPI _DSM invocation
A PRM Handler has a 1-to-1 mapping to the corresponding _DSM method.
The UUID of the _DSM Method will be passed by the ASL code to the
OpRegionHandler which will look up the PRMT Table to extract the
pointer of the corresponding PRM Handler.
PRM loader pre-builds an SSDT that includes this PRM operation region.
In boot time, the PRM loader will load and publish this SSDT, so that
in OS runtime ACPI _DSM can invoke the PRM handler by pass the UUID to
PRM operation region.
The pre-build SSDT also includes a PRMT device as a Sample ACPI _DSM to
invoke PRM handler.
Cc: Andrew Fish <afish@apple.com>
Cc: Kang Gao <kang.gao@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Michael Kubacki <michael.kubacki@microsoft.com>
Cc: Leif Lindholm <leif@nuviainc.com>
Cc: Benjamin You <benjamin.you@intel.com>
Cc: Liu Yun <yun.y.liu@intel.com>
Cc: Ankit Sinha <ankit.sinha@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Signed-off-by: Liu Yun <yun.y.liu@intel.com>
Acked-by: Michael D Kinney <michael.d.kinney@intel.com>
Acked-by: Liming Gao <gaoliming@byosoft.com.cn>
Acked-by: Leif Lindholm <quic_llindhol@quicinc.com>
Reviewed-by: Ankit Sinha <ankit.sinha@intel.com>
Diffstat (limited to 'PrmPkg/PrmLoaderDxe/Prm.asl')
| -rw-r--r-- | PrmPkg/PrmLoaderDxe/Prm.asl | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/PrmPkg/PrmLoaderDxe/Prm.asl b/PrmPkg/PrmLoaderDxe/Prm.asl new file mode 100644 index 0000000000..76b56de732 --- /dev/null +++ b/PrmPkg/PrmLoaderDxe/Prm.asl @@ -0,0 +1,87 @@ +/** @file
+ The definition block in ACPI table for PRM Operation Region
+
+ Copyright (c) 2020, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+DefinitionBlock (
+ "Prm.aml",
+ "SSDT",
+ 0x01,
+ "OEMID",
+ "PRMOPREG",
+ 0x3000
+ )
+{
+ Scope (\_SB)
+ {
+ //
+ // PRM Bridge Device
+ //
+
+ Device (PRMB)
+ {
+ Name (_HID, "80860222")
+ Name (_CID, "80860222")
+ Name (_DDN, "PRM Bridge Device")
+ Name (_STA, 0xF)
+ OperationRegion (OPR1, 0x80, 0, 16)
+ Field (OPR1, DWordAcc, NoLock, Preserve) //Make it ByteAcc for parameter validation
+ {
+ Var0, 128
+ }
+ Method (SETV, 1, Serialized)
+ {
+ CopyObject (Arg0, \_SB.PRMB.Var0)
+ }
+ }
+
+ //
+ // PRM Test Device
+ //
+
+ Device (PRMT)
+ {
+ Name (_HID, "80860223")
+ Name (_CID, "80860223")
+ Name (_DDN, "PRM Test Device")
+ Name (_STA, 0xF)
+ Name (BUF1, Buffer(16)
+ {
+ 0x5F, 0xAD, 0xF2, 0xD5, 0x47, 0xA3, 0x3E, 0x4D, //Guid_0
+ 0x87, 0xBC, 0xC2, 0xCE, 0x63, 0x02, 0x9C, 0xC8, //Guid_1
+ })
+ Name (BUF2, Buffer(16)
+ {
+ 0xC3, 0xAD, 0xE7, 0xA9, 0xD0, 0x8C, 0x9A, 0x42, //Guid_0
+ 0x89, 0x15, 0x10, 0x94, 0x6E, 0xBD, 0xE3, 0x18, //Guid_1
+ })
+ Name (BUF3, Buffer(16)
+ {
+ 0x14, 0xC2, 0x88, 0xB6, 0x81, 0x40, 0xEB, 0x4E, //Guid_0
+ 0x8D, 0x26, 0x1E, 0xB5, 0xA3, 0xBC, 0xF1, 0x1A, //Guid_1
+ })
+ Method (NTST)
+ {
+ \_SB.PRMB.SETV (BUF1)
+ }
+ Method (TST1)
+ {
+ \_SB.PRMB.SETV (BUF1)
+ }
+ Method (TST2)
+ {
+ \_SB.PRMB.SETV (BUF2)
+ }
+ Method (TST3)
+ {
+ \_SB.PRMB.SETV (BUF3)
+ }
+ }
+ }
+
+} // End of Definition Block
+
+
+
|