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.
+ 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
+
+
+
diff --git a/PrmPkg/PrmLoaderDxe/PrmLoaderDxe.c b/PrmPkg/PrmLoaderDxe/PrmLoaderDxe.c
index 5fda4c1b01..5e14b8e09d 100644
--- a/PrmPkg/PrmLoaderDxe/PrmLoaderDxe.c
+++ b/PrmPkg/PrmLoaderDxe/PrmLoaderDxe.c
@@ -3,6 +3,7 @@
This file contains the implementation for a Platform Runtime Mechanism (PRM)
loader driver.
+ Copyright (c) 2020, Intel Corporation. All rights reserved.
Copyright (c) Microsoft Corporation
SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -19,6 +20,7 @@
#include
#include
#include
+#include
#include
#include
#include
@@ -809,6 +811,8 @@ PublishPrmAcpiTable (
EFI_STATUS Status;
EFI_ACPI_TABLE_PROTOCOL *AcpiTableProtocol;
UINTN TableKey;
+ EFI_ACPI_DESCRIPTION_HEADER *Ssdt;
+ UINTN SsdtSize;
if (PrmAcpiDescriptionTable == NULL || PrmAcpiDescriptionTable->Header.Signature != PRM_TABLE_SIGNATURE) {
return EFI_INVALID_PARAMETER;
@@ -832,6 +836,36 @@ PublishPrmAcpiTable (
}
ASSERT_EFI_ERROR (Status);
+ //
+ // Load SSDT
+ //
+ Status = GetSectionFromFv (
+ &gEfiCallerIdGuid,
+ EFI_SECTION_RAW,
+ 0,
+ (VOID **) &Ssdt,
+ &SsdtSize
+ );
+ ASSERT_EFI_ERROR (Status);
+ DEBUG ((DEBUG_INFO, "%a %a: SSDT loaded ...\n", _DBGMSGID_, __FUNCTION__));
+
+ //
+ // Update OEM ID
+ //
+ CopyMem (&Ssdt->OemId, PcdGetPtr (PcdAcpiDefaultOemId), sizeof (Ssdt->OemId));
+
+ //
+ // Publish the SSDT. Table is re-checksumed.
+ //
+ TableKey = 0;
+ Status = AcpiTableProtocol->InstallAcpiTable (
+ AcpiTableProtocol,
+ Ssdt,
+ SsdtSize,
+ &TableKey
+ );
+ ASSERT_EFI_ERROR (Status);
+
return Status;
}
diff --git a/PrmPkg/PrmLoaderDxe/PrmLoaderDxe.inf b/PrmPkg/PrmLoaderDxe/PrmLoaderDxe.inf
index 643e1a7989..016ced4b37 100644
--- a/PrmPkg/PrmLoaderDxe/PrmLoaderDxe.inf
+++ b/PrmPkg/PrmLoaderDxe/PrmLoaderDxe.inf
@@ -5,6 +5,7 @@
# PRM handlers within those modules into a PRMT ACPI table such that the handlers are
# made available for invocation in the OS.
#
+# Copyright (c) 2020, Intel Corporation. All rights reserved.
# Copyright (c) Microsoft Corporation
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -23,6 +24,7 @@
PrmAcpiTable.h
PrmLoader.h
PrmLoaderDxe.c
+ Prm.asl
[Packages]
MdePkg/MdePkg.dec
@@ -42,6 +44,8 @@
UefiBootServicesTableLib
UefiDriverEntryPoint
UefiLib
+ DxeServicesLib
+ PcdLib
[Pcd]
gEfiMdeModulePkgTokenSpaceGuid.PcdAcpiDefaultOemId ## CONSUMES