Hi Mike,
In the V2, I added IANA, Microsoft and UEFI specification links in every patches that uses them. Associated patches:

0008-MdePkg-Include-Add-LOONGARCH-related-definitions-.patch
0015-BaseTools-BaseTools-changes-for-LoongArch-platfor.patch
0022-MdePkg-Include-LoongArch-definitions.patch(This patch)

Please check and review them again.

Thanks,
Chao
--------

On 9月 14 2022, at 5:41 下午, Chao Li <lichao@loongson.cn> wrote:
> REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4053
>
> Add LoongArch processor related definitions.
> For the Http boot and PXE boot types seeing this URL section "Processor
> Architecture Type" for the LOONGARCH values:
> https://www.iana.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xhtml
>
> For definitions of PE/COFF and LOONGARCH relocation types, see the
> "Machine Types" and "Basic Relocation Types" sections of this URL for
> LOONGARCH values:
> https://docs.microsoft.com/en-us/windows/win32/debug/pe-format
>
> For the register definitions of exceptions context, see the UEFI V2.10
> 18.2.2, 18.2.4 and 18.2.5 sections of this URL for LOONGARCH
> definitions:
> https://uefi.org/specs/UEFI/2.10/18_Protocols_Debugger_Support.html
>
> Cc: Michael D Kinney <michael.d.kinney@intel.com>
> Cc: Liming Gao <gaoliming@byosoft.com.cn>
> Cc: Zhiguang Liu <zhiguang.liu@intel.com>
>
> Signed-off-by: Chao Li <lichao@loongson.cn>
> ---
> MdePkg/Include/IndustryStandard/PeImage.h | 9 ++
> MdePkg/Include/Protocol/DebugSupport.h | 107 ++++++++++++++++++++--
> MdePkg/Include/Protocol/PxeBaseCode.h | 3 +
> MdePkg/Include/Uefi/UefiBaseType.h | 14 +++
> MdePkg/Include/Uefi/UefiSpec.h | 16 ++--
> 5 files changed, 136 insertions(+), 13 deletions(-)
>
> diff --git a/MdePkg/Include/IndustryStandard/PeImage.h b/MdePkg/Include/IndustryStandard/PeImage.h
> index 3109dc20f8..dd4cc25483 100644
> --- a/MdePkg/Include/IndustryStandard/PeImage.h
> +++ b/MdePkg/Include/IndustryStandard/PeImage.h
> @@ -10,6 +10,7 @@
> 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>
> +Portions Copyright (c) 2022, Loongson Technology Corporation Limited. All rights reserved.<BR>
>
>
> SPDX-License-Identifier: BSD-2-Clause-Patent
>
>
> @@ -38,6 +39,8 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
> #define IMAGE_FILE_MACHINE_RISCV32 0x5032
>
> #define IMAGE_FILE_MACHINE_RISCV64 0x5064
> #define IMAGE_FILE_MACHINE_RISCV128 0x5128
> +#define IMAGE_FILE_MACHINE_LOONGARCH32 0x6232
> +#define IMAGE_FILE_MACHINE_LOONGARCH64 0x6264
>
>
> //
> // EXE file formats
> @@ -503,6 +506,12 @@ typedef struct {
> #define EFI_IMAGE_REL_BASED_RISCV_LOW12I 7
>
> #define EFI_IMAGE_REL_BASED_RISCV_LOW12S 8
>
>
> +//
> +// Relocation types of LoongArch processor.
> +//
> +#define EFI_IMAGE_REL_BASED_LOONGARCH32_MARK_LA 8
> +#define EFI_IMAGE_REL_BASED_LOONGARCH64_MARK_LA 8
> +
> ///
> /// Line number format.
> ///
> diff --git a/MdePkg/Include/Protocol/DebugSupport.h b/MdePkg/Include/Protocol/DebugSupport.h
> index ec5b92a5c5..2b0ae2d157 100644
> --- a/MdePkg/Include/Protocol/DebugSupport.h
> +++ b/MdePkg/Include/Protocol/DebugSupport.h
> @@ -654,17 +654,110 @@ typedef struct {
> UINT64 X31;
>
> } EFI_SYSTEM_CONTEXT_RISCV64;
>
>
> +//
> +// LoongArch processor exception types.
> +//
> +#define EXCEPT_LOONGARCH_INT 0
> +#define EXCEPT_LOONGARCH_PIL 1
> +#define EXCEPT_LOONGARCH_PIS 2
> +#define EXCEPT_LOONGARCH_PIF 3
> +#define EXCEPT_LOONGARCH_PME 4
> +#define EXCEPT_LOONGARCH_PNR 5
> +#define EXCEPT_LOONGARCH_PNX 6
> +#define EXCEPT_LOONGARCH_PPI 7
> +#define EXCEPT_LOONGARCH_ADE 8
> +#define EXCEPT_LOONGARCH_ALE 9
> +#define EXCEPT_LOONGARCH_BCE 10
> +#define EXCEPT_LOONGARCH_SYS 11
> +#define EXCEPT_LOONGARCH_BRK 12
> +#define EXCEPT_LOONGARCH_INE 13
> +#define EXCEPT_LOONGARCH_IPE 14
> +#define EXCEPT_LOONGARCH_FPD 15
> +#define EXCEPT_LOONGARCH_SXD 16
> +#define EXCEPT_LOONGARCH_ASXD 17
> +#define EXCEPT_LOONGARCH_FPE 18
> +#define EXCEPT_LOONGARCH_TBR 64 // For code only, there is no such type in the ISA spec, the TLB refill is defined for an independent exception.
> +
> +//
> +// LoongArch processor Interrupt types.
> +//
> +#define EXCEPT_LOONGARCH_INT_SIP0 0
> +#define EXCEPT_LOONGARCH_INT_SIP1 1
> +#define EXCEPT_LOONGARCH_INT_IP0 2
> +#define EXCEPT_LOONGARCH_INT_IP1 3
> +#define EXCEPT_LOONGARCH_INT_IP2 4
> +#define EXCEPT_LOONGARCH_INT_IP3 5
> +#define EXCEPT_LOONGARCH_INT_IP4 6
> +#define EXCEPT_LOONGARCH_INT_IP5 7
> +#define EXCEPT_LOONGARCH_INT_IP6 8
> +#define EXCEPT_LOONGARCH_INT_IP7 9
> +#define EXCEPT_LOONGARCH_INT_PMC 10
> +#define EXCEPT_LOONGARCH_INT_TIMER 11
> +#define EXCEPT_LOONGARCH_INT_IPI 12
> +
> +//
> +// For coding convenience, define the maximum valid
> +// LoongArch interrupt.
> +//
> +#define MAX_LOONGARCH_INTERRUPT 14
> +
> +typedef struct {
> + UINT64 R0;
> + UINT64 R1;
> + UINT64 R2;
> + UINT64 R3;
> + UINT64 R4;
> + UINT64 R5;
> + UINT64 R6;
> + UINT64 R7;
> + UINT64 R8;
> + UINT64 R9;
> + UINT64 R10;
> + UINT64 R11;
> + UINT64 R12;
> + UINT64 R13;
> + UINT64 R14;
> + UINT64 R15;
> + UINT64 R16;
> + UINT64 R17;
> + UINT64 R18;
> + UINT64 R19;
> + UINT64 R20;
> + UINT64 R21;
> + UINT64 R22;
> + UINT64 R23;
> + UINT64 R24;
> + UINT64 R25;
> + UINT64 R26;
> + UINT64 R27;
> + UINT64 R28;
> + UINT64 R29;
> + UINT64 R30;
> + UINT64 R31;
> +
> + UINT64 CRMD; // CuRrent MoDe information
> + UINT64 PRMD; // PRe-exception MoDe information
> + UINT64 EUEN; // Extended component Unit ENable
> + UINT64 MISC; // MISCellaneous controller
> + UINT64 ECFG; // Exception ConFiGuration
> + UINT64 ESTAT; // Exception STATus
> + UINT64 ERA; // Exception Return Address
> + UINT64 BADV; // BAD Virtual address
> + UINT64 BADI; // BAD Instruction
> +} EFI_SYSTEM_CONTEXT_LOONGARCH64;
> +
> ///
> /// Universal EFI_SYSTEM_CONTEXT definition.
> ///
> typedef union {
> - EFI_SYSTEM_CONTEXT_EBC *SystemContextEbc;
> - EFI_SYSTEM_CONTEXT_IA32 *SystemContextIa32;
> - EFI_SYSTEM_CONTEXT_X64 *SystemContextX64;
> - EFI_SYSTEM_CONTEXT_IPF *SystemContextIpf;
> - EFI_SYSTEM_CONTEXT_ARM *SystemContextArm;
> - EFI_SYSTEM_CONTEXT_AARCH64 *SystemContextAArch64;
> - EFI_SYSTEM_CONTEXT_RISCV64 *SystemContextRiscV64;
> + EFI_SYSTEM_CONTEXT_EBC *SystemContextEbc;
> + EFI_SYSTEM_CONTEXT_IA32 *SystemContextIa32;
> + EFI_SYSTEM_CONTEXT_X64 *SystemContextX64;
> + EFI_SYSTEM_CONTEXT_IPF *SystemContextIpf;
> + EFI_SYSTEM_CONTEXT_ARM *SystemContextArm;
> + EFI_SYSTEM_CONTEXT_AARCH64 *SystemContextAArch64;
> + EFI_SYSTEM_CONTEXT_RISCV64 *SystemContextRiscV64;
> + EFI_SYSTEM_CONTEXT_LOONGARCH64 *SystemContextLoongArch64;
> } EFI_SYSTEM_CONTEXT;
>
>
> //
> diff --git a/MdePkg/Include/Protocol/PxeBaseCode.h b/MdePkg/Include/Protocol/PxeBaseCode.h
> index 11872d602d..6787941a5d 100644
> --- a/MdePkg/Include/Protocol/PxeBaseCode.h
> +++ b/MdePkg/Include/Protocol/PxeBaseCode.h
> @@ -4,6 +4,7 @@
>
>
> Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
> Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
> +Copyright (c) 2022, Loongson Technology Corporation Limited. All rights reserved.<BR>
>
>
> SPDX-License-Identifier: BSD-2-Clause-Patent
>
>
> @@ -158,6 +159,8 @@ typedef UINT16 EFI_PXE_BASE_CODE_UDP_PORT;
> #define EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE 0x000B
>
> #elif defined (MDE_CPU_RISCV64)
> #define EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE 0x001B
> +#elif defined (MDE_CPU_LOONGARCH64)
> +#define EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE 0x0027
> #endif
>
>
> ///
> diff --git a/MdePkg/Include/Uefi/UefiBaseType.h b/MdePkg/Include/Uefi/UefiBaseType.h
> index 4a34ce8e25..83975a08eb 100644
> --- a/MdePkg/Include/Uefi/UefiBaseType.h
> +++ b/MdePkg/Include/Uefi/UefiBaseType.h
> @@ -4,6 +4,7 @@
> Copyright (c) 2006 - 2021, 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>
> +Copyright (c) 2022, Loongson Technology Corporation Limited. All rights reserved.<BR>
>
>
> SPDX-License-Identifier: BSD-2-Clause-Patent
>
>
> @@ -246,6 +247,12 @@ typedef union {
> #define EFI_IMAGE_MACHINE_RISCV64 0x5064
>
> #define EFI_IMAGE_MACHINE_RISCV128 0x5128
>
>
> +///
> +/// PE32+ Machine type for LoongArch 32/64 images.
> +///
> +#define EFI_IMAGE_MACHINE_LOONGARCH32 0x6232
> +#define EFI_IMAGE_MACHINE_LOONGARCH64 0x6264
> +
> #if !defined (EFI_IMAGE_MACHINE_TYPE_VALUE) && !defined (EFI_IMAGE_MACHINE_CROSS_TYPE_VALUE)
> #if defined (MDE_CPU_IA32)
>
>
> @@ -278,6 +285,13 @@ typedef union {
> #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_LOONGARCH64)
> +
> +#define EFI_IMAGE_MACHINE_TYPE_SUPPORTED(Machine) \
> + ((Machine) == EFI_IMAGE_MACHINE_LOONGARCH64)
> +
> #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 2b38b100f6..3abebbb8d9 100644
> --- a/MdePkg/Include/Uefi/UefiSpec.h
> +++ b/MdePkg/Include/Uefi/UefiSpec.h
> @@ -7,6 +7,7 @@
>
>
> Copyright (c) 2006 - 2021, Intel Corporation. All rights reserved.<BR>
> Portions Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
> +Copyright (c) 2022, Loongson Technology Corporation Limited. All rights reserved.<BR>
>
>
> SPDX-License-Identifier: BSD-2-Clause-Patent
>
>
> @@ -2195,12 +2196,13 @@ typedef struct {
> //
>
> // EFI File location to boot from on removable media devices
> //
> -#define EFI_REMOVABLE_MEDIA_FILE_NAME_IA32 L"\\EFI\\BOOT\\BOOTIA32.EFI"
> -#define EFI_REMOVABLE_MEDIA_FILE_NAME_IA64 L"\\EFI\\BOOT\\BOOTIA64.EFI"
> -#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"
> +#define EFI_REMOVABLE_MEDIA_FILE_NAME_IA32 L"\\EFI\\BOOT\\BOOTIA32.EFI"
> +#define EFI_REMOVABLE_MEDIA_FILE_NAME_IA64 L"\\EFI\\BOOT\\BOOTIA64.EFI"
> +#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"
> +#define EFI_REMOVABLE_MEDIA_FILE_NAME_LOONGARCH64 L"\\EFI\\BOOT\\BOOTLOONGARCH64.EFI"
>
>
> #if !defined (EFI_REMOVABLE_MEDIA_FILE_NAME)
> #if defined (MDE_CPU_IA32)
> @@ -2214,6 +2216,8 @@ typedef struct {
> #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
> + #elif defined (MDE_CPU_LOONGARCH64)
> +#define EFI_REMOVABLE_MEDIA_FILE_NAME EFI_REMOVABLE_MEDIA_FILE_NAME_LOONGARCH64
> #else
> #error Unknown Processor Type
> #endif
> --
> 2.27.0
>