Add RISC-V processor related definitions.

Signed-off-by: Abner Chang <abner.ch...@hpe.com>
Co-authored-by: Gilbert Chen <gilbert.c...@hpe.com>
Reviewed-by: Leif Lindholm <leif.lindh...@linaro.org>

Cc: Michael D Kinney <michael.d.kin...@intel.com>
Cc: Liming Gao <liming....@intel.com>
Cc: Leif Lindholm <leif.lindh...@linaro.org>
Cc: Gilbert Chen <gilbert.c...@hpe.com>
---
 MdePkg/Include/IndustryStandard/PeImage.h | 12 +++++
 MdePkg/Include/Protocol/DebugSupport.h    | 55 +++++++++++++++++++++++
 MdePkg/Include/Protocol/PxeBaseCode.h     |  4 ++
 MdePkg/Include/Uefi/UefiBaseType.h        | 13 ++++++
 MdePkg/Include/Uefi/UefiSpec.h            |  5 +++
 5 files changed, 89 insertions(+)

diff --git a/MdePkg/Include/IndustryStandard/PeImage.h 
b/MdePkg/Include/IndustryStandard/PeImage.h
index a3d9bbed75..9b267002a1 100644
--- a/MdePkg/Include/IndustryStandard/PeImage.h
+++ b/MdePkg/Include/IndustryStandard/PeImage.h
@@ -9,6 +9,8 @@
 
 Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
 Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
+Portions Copyright (c) 2016 - 2020, Hewlett Packard Enterprise Development LP. 
All rights reserved.<BR>
+
 SPDX-License-Identifier: BSD-2-Clause-Patent
 
 **/
@@ -34,6 +36,9 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 #define IMAGE_FILE_MACHINE_X64             0x8664
 #define IMAGE_FILE_MACHINE_ARMTHUMB_MIXED  0x01c2
 #define IMAGE_FILE_MACHINE_ARM64           0xAA64
+#define IMAGE_FILE_MACHINE_RISCV32         0x5032
+#define IMAGE_FILE_MACHINE_RISCV64         0x5064
+#define IMAGE_FILE_MACHINE_RISCV128        0x5128
 
 //
 // EXE file formats
@@ -493,6 +498,13 @@ typedef struct {
 #define EFI_IMAGE_REL_BASED_MIPS_JMPADDR16  9
 #define EFI_IMAGE_REL_BASED_DIR64           10
 
+///
+/// Relocation types of RISC-V processor.
+///
+#define EFI_IMAGE_REL_BASED_RISCV_HI20      5
+#define EFI_IMAGE_REL_BASED_RISCV_LOW12I    7
+#define EFI_IMAGE_REL_BASED_RISCV_LOW12S    8
+
 ///
 /// Line number format.
 ///
diff --git a/MdePkg/Include/Protocol/DebugSupport.h 
b/MdePkg/Include/Protocol/DebugSupport.h
index 800e7710e6..7fb1d3b3e4 100644
--- a/MdePkg/Include/Protocol/DebugSupport.h
+++ b/MdePkg/Include/Protocol/DebugSupport.h
@@ -7,6 +7,7 @@
 
 Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
 Portions copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR>
+Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All rights 
reserved.<BR>
 
 SPDX-License-Identifier: BSD-2-Clause-Patent
 
@@ -603,6 +604,59 @@ typedef struct {
   UINT64  FAR;  // Fault Address Register
 } EFI_SYSTEM_CONTEXT_AARCH64;
 
+///
+/// RISC-V processor exception types.
+///
+#define EXCEPT_RISCV_INST_MISALIGNED              0
+#define EXCEPT_RISCV_INST_ACCESS_FAULT            1
+#define EXCEPT_RISCV_ILLEGAL_INST                 2
+#define EXCEPT_RISCV_BREAKPOINT                   3
+#define EXCEPT_RISCV_LOAD_ADDRESS_MISALIGNED      4
+#define EXCEPT_RISCV_LOAD_ACCESS_FAULT            5
+#define EXCEPT_RISCV_STORE_AMO_ADDRESS_MISALIGNED 6
+#define EXCEPT_RISCV_STORE_AMO_ACCESS_FAULT       7
+#define EXCEPT_RISCV_ENV_CALL_FROM_UMODE          8
+#define EXCEPT_RISCV_ENV_CALL_FROM_SMODE          9
+#define EXCEPT_RISCV_ENV_CALL_FROM_HMODE          10
+#define EXCEPT_RISCV_ENV_CALL_FROM_MMODE          11
+
+#define EXCEPT_RISCV_SOFTWARE_INT       0x0
+#define EXCEPT_RISCV_TIMER_INT          0x1
+
+typedef struct {
+  UINT64  X0;
+  UINT64  X1;
+  UINT64  X2;
+  UINT64  X3;
+  UINT64  X4;
+  UINT64  X5;
+  UINT64  X6;
+  UINT64  X7;
+  UINT64  X8;
+  UINT64  X9;
+  UINT64  X10;
+  UINT64  X11;
+  UINT64  X12;
+  UINT64  X13;
+  UINT64  X14;
+  UINT64  X15;
+  UINT64  X16;
+  UINT64  X17;
+  UINT64  X18;
+  UINT64  X19;
+  UINT64  X20;
+  UINT64  X21;
+  UINT64  X22;
+  UINT64  X23;
+  UINT64  X24;
+  UINT64  X25;
+  UINT64  X26;
+  UINT64  X27;
+  UINT64  X28;
+  UINT64  X29;
+  UINT64  X30;
+  UINT64  X31;
+} EFI_SYSTEM_CONTEXT_RISCV64;
 
 ///
 /// Universal EFI_SYSTEM_CONTEXT definition.
@@ -614,6 +668,7 @@ typedef union {
   EFI_SYSTEM_CONTEXT_IPF  *SystemContextIpf;
   EFI_SYSTEM_CONTEXT_ARM  *SystemContextArm;
   EFI_SYSTEM_CONTEXT_AARCH64  *SystemContextAArch64;
+  EFI_SYSTEM_CONTEXT_RISCV64  *SystemContextRiscV64;
 } EFI_SYSTEM_CONTEXT;
 
 //
diff --git a/MdePkg/Include/Protocol/PxeBaseCode.h 
b/MdePkg/Include/Protocol/PxeBaseCode.h
index b02d270134..c666d312b5 100644
--- a/MdePkg/Include/Protocol/PxeBaseCode.h
+++ b/MdePkg/Include/Protocol/PxeBaseCode.h
@@ -3,6 +3,8 @@
   devices for network access and network booting.
 
 Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All rights 
reserved.<BR>
+
 SPDX-License-Identifier: BSD-2-Clause-Patent
 
   @par Revision Reference:
@@ -153,6 +155,8 @@ typedef UINT16  EFI_PXE_BASE_CODE_UDP_PORT;
 #define EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE    0x000A
 #elif defined (MDE_CPU_AARCH64)
 #define EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE    0x000B
+#elif defined (MDE_CPU_RISCV64)
+#define EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE    0x001B
 #endif
 
 
diff --git a/MdePkg/Include/Uefi/UefiBaseType.h 
b/MdePkg/Include/Uefi/UefiBaseType.h
index a62f13dd06..934fc07285 100644
--- a/MdePkg/Include/Uefi/UefiBaseType.h
+++ b/MdePkg/Include/Uefi/UefiBaseType.h
@@ -3,6 +3,7 @@
 
 Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
 Portions copyright (c) 2011 - 2016, ARM Ltd. All rights reserved.<BR>
+Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All rights 
reserved.<BR>
 
 SPDX-License-Identifier: BSD-2-Clause-Patent
 
@@ -240,6 +241,12 @@ typedef union {
 ///
 #define EFI_IMAGE_MACHINE_AARCH64  0xAA64
 
+///
+/// PE32+ Machine type for RISC-V 32/64/128
+///
+#define EFI_IMAGE_MACHINE_RISCV32   0x5032
+#define EFI_IMAGE_MACHINE_RISCV64   0x5064
+#define EFI_IMAGE_MACHINE_RISCV128  0x5128
 
 #if   defined (MDE_CPU_IA32)
 
@@ -268,6 +275,12 @@ typedef union {
 
 #define EFI_IMAGE_MACHINE_CROSS_TYPE_SUPPORTED(Machine) (FALSE)
 
+#elif defined (MDE_CPU_RISCV64)
+#define EFI_IMAGE_MACHINE_TYPE_SUPPORTED(Machine) \
+  ((Machine) == EFI_IMAGE_MACHINE_RISCV64)
+
+#define EFI_IMAGE_MACHINE_CROSS_TYPE_SUPPORTED(Machine) (FALSE)
+
 #elif defined (MDE_CPU_EBC)
 
 ///
diff --git a/MdePkg/Include/Uefi/UefiSpec.h b/MdePkg/Include/Uefi/UefiSpec.h
index 444aa35eca..8ffaf97515 100644
--- a/MdePkg/Include/Uefi/UefiSpec.h
+++ b/MdePkg/Include/Uefi/UefiSpec.h
@@ -6,6 +6,8 @@
   by this include file.
 
 Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
+Portions Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All 
rights reserved.<BR>
+
 SPDX-License-Identifier: BSD-2-Clause-Patent
 
 **/
@@ -2198,6 +2200,7 @@ typedef struct {
 #define EFI_REMOVABLE_MEDIA_FILE_NAME_X64     L"\\EFI\\BOOT\\BOOTX64.EFI"
 #define EFI_REMOVABLE_MEDIA_FILE_NAME_ARM     L"\\EFI\\BOOT\\BOOTARM.EFI"
 #define EFI_REMOVABLE_MEDIA_FILE_NAME_AARCH64 L"\\EFI\\BOOT\\BOOTAA64.EFI"
+#define EFI_REMOVABLE_MEDIA_FILE_NAME_RISCV64 L"\\EFI\\BOOT\\BOOTRISCV64.EFI"
 
 #if   defined (MDE_CPU_IA32)
   #define EFI_REMOVABLE_MEDIA_FILE_NAME   EFI_REMOVABLE_MEDIA_FILE_NAME_IA32
@@ -2208,6 +2211,8 @@ typedef struct {
   #define EFI_REMOVABLE_MEDIA_FILE_NAME   EFI_REMOVABLE_MEDIA_FILE_NAME_ARM
 #elif defined (MDE_CPU_AARCH64)
   #define EFI_REMOVABLE_MEDIA_FILE_NAME   EFI_REMOVABLE_MEDIA_FILE_NAME_AARCH64
+#elif defined (MDE_CPU_RISCV64)
+  #define EFI_REMOVABLE_MEDIA_FILE_NAME   EFI_REMOVABLE_MEDIA_FILE_NAME_RISCV64
 #else
   #error Unknown Processor Type
 #endif
-- 
2.25.0


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