Re: [edk2-devel] [PATCH v1 22/34] MdePkg/Include: LoongArch definitions.

["Chao Li" <lichao@loongson.cn>]

Hi Mike,
Okay, I can provide it to you.
1. 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#ieee-80221-service-type.
2. 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.
3. 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. 

Thanks,
Chao

> -----原始邮件-----
> 发件人: "Michael D Kinney" <michael.d.kinney@intel.com>
> 发送时间:2022-09-10 01:18:18 (星期六)
> 收件人: "Chao Li" <lichao@loongson.cn>, "devel@edk2.groups.io" <devel@edk2.groups.io>, "Kinney, Michael D" <michael.d.kinney@intel.com>
> 抄送: "Gao, Liming" <gaoliming@byosoft.com.cn>, "Liu, Zhiguang" <zhiguang.liu@intel.com>
> 主题: Re: [edk2-devel] [PATCH v1 22/34] MdePkg/Include: LoongArch definitions.
> 
> Can you provide the links to the specs that provide the structures and defines?
> 
> Thanks,
> 
> Mike
> 
> > -----Original Message-----
> > From: Chao Li <lichao@loongson.cn>
> > Sent: Wednesday, September 7, 2022 9:52 PM
> > To: devel@edk2.groups.io
> > Cc: Kinney, Michael D <michael.d.kinney@intel.com>; Gao, Liming <gaoliming@byosoft.com.cn>; Liu, Zhiguang
> > <zhiguang.liu@intel.com>
> > Subject: [PATCH v1 22/34] MdePkg/Include: LoongArch definitions.
> > 
> > Add LoongArch processor related definitions.
> > 
> > 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
> 
> 
> 
> 
> 
> 


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