UefiPayloadPkg: Add SmmStoreInfoGuid

Add a new InfoHob that contains the SmmStore information passed from
coreboot tables when the SMMSTOREV2 feature is enabled.

This will be used to implement the FVB in top of the MM installed by
coreboot.

Cc: Guo Dong <guo.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Maurice Ma <maurice.ma@intel.com>
Cc: Benjamin You <benjamin.you@intel.com>
Cc: Sean Rhodes <sean@starlabs.systems>
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Change-Id: Ia3f7eef27d4758768c1a6736afe1cb77ee6a2f8f

UefiPayloadPkg/Include/Guid/SmmStoreInfoGuid.h

@@ -0,0 +1,27 @@
+/** @file
+  This file defines the hob structure for coreboot's SmmStore.
+
+  Copyright (c) 2022, 9elements GmbH<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef SMMSTORE_GUID_H_
+#define SMMSTORE_GUID_H_
+
+///
+/// System Table Information GUID
+///
+extern EFI_GUID  gEfiSmmStoreInfoHobGuid;
+
+typedef struct {
+  UINT64    ComBuffer;
+  UINT32    ComBufferSize;
+  UINT32    NumBlocks;
+  UINT32    BlockSize;
+  UINT64    MmioAddress;
+  UINT8     ApmCmd;
+  UINT8     Reserved0[3];
+} SMMSTORE_INFO;
+
+#endif // SMMSTORE_GUID_H_

UefiPayloadPkg/Include/Library/SmmStoreParseLib.h

@@ -0,0 +1,29 @@
+/** @file
+  This library will parse the coreboot table in memory and extract those required
+  information.
+
+  Copyright (c) 2021, Star Labs Systems. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef SMM_STORE_PARSE_LIB_H_
+#define SMM_STORE_PARSE_LIB_H_
+
+#include <Guid/SmmStoreInfoGuid.h>
+
+/**
+  Find the SmmStore HOB.
+
+  @param  SmmStoreInfo       Pointer to the SMMSTORE_INFO structure
+
+  @retval RETURN_SUCCESS     Successfully find the Smm store buffer information.
+  @retval RETURN_NOT_FOUND   Failed to find the Smm store buffer information .
+**/
+RETURN_STATUS
+EFIAPI
+ParseSmmStoreInfo (
+  OUT SMMSTORE_INFO  *SmmStoreInfo
+  );
+
+#endif // SMM_STORE_PARSE_LIB_H_