[edk2-devel] [edk2-platforms][PATCH 05/30] Platform/RISC-V: Add library to get PPI descriptor

[Abner Chang]

The library to provide the platform PPI descriptors in
PEI core entry before executing PEI core.

Cc: Sunil V L <sunilvl at ventanamicro.com>
Cc: Daniel Schaefer <daniel.schaefer at hpe.com>

Signed-off-by: Abner Chang <abner.chang at hpe.com>
---
 .../RISC-V/PlatformPkg/RiscVPlatformPkg.dsc   |  2 ++
 .../PlatformSecPpiLibNull.inf                 | 36 +++++++++++++++++++
 .../Include/Library/PlatformSecPpiLib.h       | 24 +++++++++++++
 .../PlatformSecPpiLibNull/PlatformSecPpiLib.c | 28 +++++++++++++++
 4 files changed, 90 insertions(+)
 create mode 100644 Platform/RISC-V/PlatformPkg/Library/PlatformSecPpiLibNull/PlatformSecPpiLibNull.inf
 create mode 100644 Platform/RISC-V/PlatformPkg/Include/Library/PlatformSecPpiLib.h
 create mode 100644 Platform/RISC-V/PlatformPkg/Library/PlatformSecPpiLibNull/PlatformSecPpiLib.c

diff --git a/Platform/RISC-V/PlatformPkg/RiscVPlatformPkg.dsc b/Platform/RISC-V/PlatformPkg/RiscVPlatformPkg.dsc
index 8eec09549f..b96324e961 100644
--- a/Platform/RISC-V/PlatformPkg/RiscVPlatformPkg.dsc
+++ b/Platform/RISC-V/PlatformPkg/RiscVPlatformPkg.dsc
@@ -61,6 +61,7 @@
 [LibraryClasses.common.PEI_CORE]
   # RISC-V platform PEI core entry point.
   PeiCoreEntryPoint|Platform/RISC-V/PlatformPkg/Library/PeiCoreEntryPoint/PeiCoreEntryPoint.inf
+  PlatformSecPpiLib|Platform/RISC-V/PlatformPkg/Library/PlatformSecPpiLibNull/PlatformSecPpiLibNull.inf
 
 [LibraryClasses.common.PEIM]
   FirmwareContextProcessorSpecificLib|Platform/RISC-V/PlatformPkg/Library/FirmwareContextProcessorSpecificLib/FirmwareContextProcessorSpecificLib.inf
@@ -82,6 +83,7 @@
   Platform/RISC-V/PlatformPkg/Library/FirmwareContextProcessorSpecificLib/FirmwareContextProcessorSpecificLib.inf
   Platform/RISC-V/PlatformPkg/Library/RiscVPlatformTempMemoryInitLibNull/RiscVPlatformTempMemoryInitLibNull.inf
   Platform/RISC-V/PlatformPkg/Library/PeiCoreEntryPoint/PeiCoreEntryPoint.inf
+  Platform/RISC-V/PlatformPkg/Library/PlatformSecPpiLibNull/PlatformSecPpiLibNull.inf
 
 [Components.common.SEC]
   Platform/RISC-V/PlatformPkg/Universal/Sec/SecMain.inf
diff --git a/Platform/RISC-V/PlatformPkg/Library/PlatformSecPpiLibNull/PlatformSecPpiLibNull.inf b/Platform/RISC-V/PlatformPkg/Library/PlatformSecPpiLibNull/PlatformSecPpiLibNull.inf
new file mode 100644
index 0000000000..22f5751655
--- /dev/null
+++ b/Platform/RISC-V/PlatformPkg/Library/PlatformSecPpiLibNull/PlatformSecPpiLibNull.inf
@@ -0,0 +1,36 @@
+## @file
+#  Library instance to to provide PPI before PEI Core
+#
+#  Copyright (c) 2021, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
+#
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x0001001b
+  BASE_NAME                      = PlatformSecPpiLib
+  FILE_GUID                      = A2CDDADC-CB65-4EED-9CAE-192B0BDD6C84
+  MODULE_TYPE                    = PEIM
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = PlatformSecPpiLib|PEI_CORE
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+#  VALID_ARCHITECTURES           = RISCV64
+#
+
+[Sources]
+ PlatformSecPpiLib.c
+
+[Packages]
+  MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+  Platform/RISC-V/PlatformPkg/RiscVPlatformPkg.dec
+  #Silicon/RISC-V/ProcessorPkg/RiscVProcessorPkg.dec
+
+[LibraryClasses]
+  #BaseLib
+  #PrintLib
+
diff --git a/Platform/RISC-V/PlatformPkg/Include/Library/PlatformSecPpiLib.h b/Platform/RISC-V/PlatformPkg/Include/Library/PlatformSecPpiLib.h
new file mode 100644
index 0000000000..88468e660b
--- /dev/null
+++ b/Platform/RISC-V/PlatformPkg/Include/Library/PlatformSecPpiLib.h
@@ -0,0 +1,24 @@
+/** @file
+  RISC-V platform SEC PPI before PEI Core.
+
+  Copyright (c) 2021, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+#ifndef RISCV_PLATFORM_SEC_PPI_H_
+#define RISCV_PLATFORM_SEC_PPI_H_
+
+#include <PiPei.h>
+
+/** Return platform SEC PPI before PEI Core
+
+  @param[in,out]  ThisPpiList   Pointer to retrieve EFI_PEI_PPI_DESCRIPTOR.
+
+**/
+EFI_STATUS
+GetPlatformPrePeiCorePpiDescriptor (
+  IN OUT EFI_PEI_PPI_DESCRIPTOR  **ThisPpiList
+);
+
+#endif
diff --git a/Platform/RISC-V/PlatformPkg/Library/PlatformSecPpiLibNull/PlatformSecPpiLib.c b/Platform/RISC-V/PlatformPkg/Library/PlatformSecPpiLibNull/PlatformSecPpiLib.c
new file mode 100644
index 0000000000..d5c089b02d
--- /dev/null
+++ b/Platform/RISC-V/PlatformPkg/Library/PlatformSecPpiLibNull/PlatformSecPpiLib.c
@@ -0,0 +1,28 @@
+/**@file
+  NULL library instance of PlatformSecPpiLib
+
+  Copyright (c) 2021, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+//
+// The package level header files this module uses
+//
+#include <PiPei.h>
+
+/** Return platform SEC PPI before PEI Core
+
+  @param[in,out]  ThisPpiList   Pointer to retrieve EFI_PEI_PPI_DESCRIPTOR.
+
+**/
+EFI_STATUS
+GetPlatformPrePeiCorePpiDescriptor (
+  IN OUT EFI_PEI_PPI_DESCRIPTOR  **ThisPpiList
+)
+{
+  *ThisPpiList = NULL;
+  return EFI_NOT_FOUND;
+}
+
-- 
2.31.1



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