Adds the System Agent NVS ACPI table and structures
Cc: Sai Chaganty <rangasai.v.chaga...@intel.com>
Cc: Nate DeSimone <nathaniel.l.desim...@intel.com>
Cc: Isaac Oram <isaac.w.o...@intel.com>
Cc: Rosen Chuang <rosen.chu...@intel.com>
Signed-off-by: Saloni Kasbekar <saloni.kasbe...@intel.com>
---
.../SystemAgent/AcpiTables/SaSsdt/SaNvs.asl | 18 +++++++++++
.../IncludePrivate/Protocol/SaNvsArea.h | 30 +++++++++++++++++++
.../SystemAgent/IncludePrivate/SaNvsAreaDef.h | 22 ++++++++++++++
3 files changed, 70 insertions(+)
create mode 100644
Silicon/Intel/AlderlakeSiliconPkg/SystemAgent/AcpiTables/SaSsdt/SaNvs.asl
create mode 100644
Silicon/Intel/AlderlakeSiliconPkg/SystemAgent/IncludePrivate/Protocol/SaNvsArea.h
create mode 100644
Silicon/Intel/AlderlakeSiliconPkg/SystemAgent/IncludePrivate/SaNvsAreaDef.h
diff --git
a/Silicon/Intel/AlderlakeSiliconPkg/SystemAgent/AcpiTables/SaSsdt/SaNvs.asl
b/Silicon/Intel/AlderlakeSiliconPkg/SystemAgent/AcpiTables/SaSsdt/SaNvs.asl
new file mode 100644
index 0000000000..e9785873d2
--- /dev/null
+++ b/Silicon/Intel/AlderlakeSiliconPkg/SystemAgent/AcpiTables/SaSsdt/SaNvs.asl
@@ -0,0 +1,18 @@
+/**@file
+
+ Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+ //
+ // Define SA NVS Area operation region.
+ //
+
+
+ OperationRegion(SANV,SystemMemory,SANB,SANL)
+ Field(SANV,AnyAcc,Lock,Preserve)
+ { Offset(0), M64B, 64, // Offset(0), Base of above 4GB MMIO resource
+ Offset(8), M64L, 64, // Offset(8), Length of above 4GB MMIO resource
+ Offset(16), M32B, 32, // Offset(16), Base of below 4GB MMIO resource
+ Offset(20), M32L, 32, // Offset(20), Length of below 4GB MMIO resource
+ }
\ No newline at end of file
diff --git
a/Silicon/Intel/AlderlakeSiliconPkg/SystemAgent/IncludePrivate/Protocol/SaNvsArea.h
b/Silicon/Intel/AlderlakeSiliconPkg/SystemAgent/IncludePrivate/Protocol/SaNvsArea.h
new file mode 100644
index 0000000000..3a75465843
--- /dev/null
+++
b/Silicon/Intel/AlderlakeSiliconPkg/SystemAgent/IncludePrivate/Protocol/SaNvsArea.h
@@ -0,0 +1,30 @@
+/** @file
+ Definition of the System Agent global NVS area protocol.
+ This protocol publishes the address and format of a global ACPI NVS buffer
+ used as a communications buffer between SMM/DXE/PEI code and ASL code.
+
+ Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+#ifndef _SYSTEM_AGENT_NVS_AREA_H_
+#define _SYSTEM_AGENT_NVS_AREA_H_
+
+//
+// SA NVS Area definition
+//
+#include <SaNvsAreaDef.h>
+
+//
+// Extern the GUID for protocol users.
+//
+extern EFI_GUID gSaNvsAreaProtocolGuid;
+
+///
+/// System Agent Global NVS Area Protocol
+///
+typedef struct {
+ SYSTEM_AGENT_NVS_AREA *Area; ///< System Agent Global NVS Area
Structure
+} SYSTEM_AGENT_NVS_AREA_PROTOCOL;
+
+#endif // _SYSTEM_AGENT_NVS_AREA_H_
diff --git
a/Silicon/Intel/AlderlakeSiliconPkg/SystemAgent/IncludePrivate/SaNvsAreaDef.h
b/Silicon/Intel/AlderlakeSiliconPkg/SystemAgent/IncludePrivate/SaNvsAreaDef.h
new file mode 100644
index 0000000000..5b8136866a
--- /dev/null
+++
b/Silicon/Intel/AlderlakeSiliconPkg/SystemAgent/IncludePrivate/SaNvsAreaDef.h
@@ -0,0 +1,22 @@
+/**@file
+
+ Copyright (c) 2022, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+ //
+ // Define SA NVS Area operation region.
+ //
+#ifndef _SA_NVS_AREA_DEF_H_
+#define _SA_NVS_AREA_DEF_H_
+
+#pragma pack (push,1)
+typedef struct {
+ UINT64 Mmio64Base; ///< Offset 0 Base of
above 4GB MMIO resource
+ UINT64 Mmio64Length; ///< Offset 8 Length
of above 4GB MMIO resource
+ UINT32 Mmio32Base; ///< Offset 16 Base of
below 4GB MMIO resource
+ UINT32 Mmio32Length; ///< Offset 20 Length
of below 4GB MMIO resource
+} SYSTEM_AGENT_NVS_AREA;
+
+#pragma pack(pop)
+#endif
--
2.36.1.windows.1
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