REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4054

The uploaded code generates firmware to support Linux launching on the LoongArch platform under qemu,
So it will run in a virtual machine.

LoongArch is the general processor architecture of Loongson.
You can get the latest LoongArch documents or LoongArch tools at https://github.com/loongson/.

You can also view the code through the Loongson community.
The edk2 code in Loongson community:
https://github.com/loongson/edk2/tree/LoongArch
The edk2-platform code in Loonson community:
https://github.com/loongson/edk2-platforms
The qemu code in Loongson community:
https://gitlab.com/qemu-project/qemu.git
The LoongArch Documentation in Loongson community:
https://github.com/loongson/LoongArch-Documentation/tree/main/docs
The all patches at:
https://github.com/loongson/edk2-platforms/tree/devel-LoongArch-patch

v2 changes:
 - Remove the inline assembly from StableTimerLib.
 - troubleshoot TAB strings, convert TAB characters to spaces.
 - remove smm related code, loongarch has no smm mode.

v3 changes:
 - delete ExtractHandler related code.
 - Boot UEFI with low 256M memory.
 - Modify common interrupt handling.

v4 changes:
 - Remove qemu flash related code.
 - Modify fdt base address.

xianglai li (14):
  Platform/Loongson: Add Serial Port library
  Platform/Loongson: Support SEC And Add Readme.md
  Platform/Loongson: Add PeiServicesTablePointerLib.
  Platform/Loongson: Add QemuFwCfgLib.
  Platform/Loongson: Add MmuLib.
  Platform/Loongson: Add StableTimerLib.
  Platform/Loongson: Support PEI phase.
  Platform/Loongson: Add CPU DXE driver.
  Platform/Loongson: Add PciCpuIoDxe driver.
  Platform/Loongson:  Add timer Dxe driver.
  Platform/Loongson: Add RealTime Clock lib.
  Platform/Loongson: Add Platform Boot Manager Lib.
  Platform/Loongson: Add Reset System Lib.
  Platform/Loongson: Support Dxe

 Maintainers.txt                               |   4 +
 .../LoongArchQemuPkg/Drivers/CpuDxe/CpuDxe.c  | 382 ++++++++
 .../LoongArchQemuPkg/Drivers/CpuDxe/CpuDxe.h  | 151 +++
 .../Drivers/CpuDxe/CpuDxe.inf                 |  56 ++
 .../Drivers/CpuDxe/LoongArch64/Exception.c    | 338 +++++++
 .../Drivers/CpuDxe/LoongArch64/Fpu.S          |  67 ++
 .../Drivers/CpuDxe/LoongArch64/LoongArch.S    | 292 ++++++
 .../Drivers/PciCpuIo2Dxe/PciCpuIo2Dxe.c       | 548 +++++++++++
 .../Drivers/PciCpuIo2Dxe/PciCpuIo2Dxe.h       | 219 +++++
 .../Drivers/PciCpuIo2Dxe/PciCpuIo2Dxe.inf     |  40 +
 .../Drivers/StableTimerDxe/Timer.c            | 405 ++++++++
 .../Drivers/StableTimerDxe/Timer.h            | 165 ++++
 .../Drivers/StableTimerDxe/TimerDxe.inf       |  40 +
 .../Include/IndustryStandard/QemuFwCfg.h      |  95 ++
 .../LoongArchQemuPkg/Include/Library/Cpu.h    | 387 ++++++++
 .../LoongArchQemuPkg/Include/Library/MmuLib.h |  85 ++
 .../Include/Library/QemuFwCfgLib.h            | 193 ++++
 .../Include/Library/StableTimer.h             |  43 +
 .../Include/LoongArchAsmMacro.h               |  23 +
 .../Include/LoongArchQemuPlatform.h           |  97 ++
 .../LsRealTimeClockLib/LsRealTimeClock.h      |  41 +
 .../LsRealTimeClockLib/LsRealTimeClockLib.c   | 343 +++++++
 .../LsRealTimeClockLib/LsRealTimeClockLib.inf |  41 +
 .../LoongArchQemuPkg/Library/MmuLib/Mmu.S     |  35 +
 .../Library/MmuLib/MmuBaseLib.inf             |  35 +
 .../Library/MmuLib/MmuBaseLibPei.inf          |  42 +
 .../Library/MmuLib/MmuLibCore.c               | 908 ++++++++++++++++++
 .../Library/MmuLib/MmuLibCore.h               |  39 +
 .../Library/MmuLib/MmuLibCorePei.c            | 236 +++++
 .../LoongArchQemuPkg/Library/MmuLib/mmu.h     | 104 ++
 .../LoongArchQemuPkg/Library/MmuLib/page.h    | 267 +++++
 .../LoongArchQemuPkg/Library/MmuLib/pte.h     |  57 ++
 .../PeiServicesTablePointer.c                 |  78 ++
 .../PeiServicesTablePointerLib.inf            |  32 +
 .../PlatformBootManagerLib/PlatformBm.c       | 760 +++++++++++++++
 .../PlatformBootManagerLib/PlatformBm.h       | 112 +++
 .../PlatformBootManagerLib.inf                |  78 ++
 .../PlatformBootManagerLib/QemuKernel.c       |  81 ++
 .../QemuFwCfgLib/QemuFwCfgLibInternal.h       |  64 ++
 .../Library/QemuFwCfgLib/QemuFwCfgPei.c       | 119 +++
 .../Library/QemuFwCfgLib/QemuFwCfgPeiLib.c    | 477 +++++++++
 .../Library/QemuFwCfgLib/QemuFwCfgPeiLib.inf  |  44 +
 .../BaseResetSystemAcpiGed.c                  | 155 +++
 .../BaseResetSystemAcpiGedLib.inf             |  42 +
 .../DxeResetSystemAcpiGed.c                   | 270 ++++++
 .../DxeResetSystemAcpiGedLib.inf              |  47 +
 .../ResetSystemAcpiLib/ResetSystemAcpiGed.c   | 128 +++
 .../ResetSystemAcpiLib/ResetSystemAcpiGed.h   |  20 +
 .../Library/SerialPortLib/SerialPortLib.c     | 612 ++++++++++++
 .../Library/SerialPortLib/SerialPortLib.inf   |  36 +
 .../Library/StableTimerLib/Count.S            |  35 +
 .../Library/StableTimerLib/TimerLib.c         | 242 +++++
 .../Library/StableTimerLib/TimerLib.inf       |  28 +
 .../Loongson/LoongArchQemuPkg/Loongson.dec    |  70 ++
 .../Loongson/LoongArchQemuPkg/Loongson.dsc    | 606 ++++++++++++
 .../Loongson/LoongArchQemuPkg/Loongson.fdf    | 346 +++++++
 .../LoongArchQemuPkg/Loongson.fdf.inc         |  63 ++
 .../LoongArchQemuPkg/PlatformPei/Fv.c         |  61 ++
 .../LoongArchQemuPkg/PlatformPei/MemDetect.c  | 108 +++
 .../LoongArchQemuPkg/PlatformPei/Platform.c   | 264 +++++
 .../LoongArchQemuPkg/PlatformPei/Platform.h   |  87 ++
 .../PlatformPei/PlatformPei.inf               |  71 ++
 Platform/Loongson/LoongArchQemuPkg/Readme.md  |  59 ++
 .../LoongArchQemuPkg/Sec/LoongArch64/Start.S  |  80 ++
 .../Loongson/LoongArchQemuPkg/Sec/SecMain.c   | 510 ++++++++++
 .../Loongson/LoongArchQemuPkg/Sec/SecMain.inf |  47 +
 Readme.md                                     |   9 +
 67 files changed, 11619 insertions(+)
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Drivers/CpuDxe/CpuDxe.c
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Drivers/CpuDxe/CpuDxe.h
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Drivers/CpuDxe/CpuDxe.inf
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Drivers/CpuDxe/LoongArch64/Exception.c
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Drivers/CpuDxe/LoongArch64/Fpu.S
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Drivers/CpuDxe/LoongArch64/LoongArch.S
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Drivers/PciCpuIo2Dxe/PciCpuIo2Dxe.c
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Drivers/PciCpuIo2Dxe/PciCpuIo2Dxe.h
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Drivers/PciCpuIo2Dxe/PciCpuIo2Dxe.inf
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Drivers/StableTimerDxe/Timer.c
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Drivers/StableTimerDxe/Timer.h
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Drivers/StableTimerDxe/TimerDxe.inf
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Include/IndustryStandard/QemuFwCfg.h
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Include/Library/Cpu.h
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Include/Library/MmuLib.h
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Include/Library/QemuFwCfgLib.h
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Include/Library/StableTimer.h
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Include/LoongArchAsmMacro.h
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Include/LoongArchQemuPlatform.h
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/LsRealTimeClockLib/LsRealTimeClock.h
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/LsRealTimeClockLib/LsRealTimeClockLib.c
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/LsRealTimeClockLib/LsRealTimeClockLib.inf
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/MmuLib/Mmu.S
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/MmuLib/MmuBaseLib.inf
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/MmuLib/MmuBaseLibPei.inf
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/MmuLib/MmuLibCore.c
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/MmuLib/MmuLibCore.h
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/MmuLib/MmuLibCorePei.c
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/MmuLib/mmu.h
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/MmuLib/page.h
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/MmuLib/pte.h
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/PeiServicesTablePointerLib/PeiServicesTablePointer.c
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/PeiServicesTablePointerLib/PeiServicesTablePointerLib.inf
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/PlatformBootManagerLib/PlatformBm.c
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/PlatformBootManagerLib/PlatformBm.h
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/PlatformBootManagerLib/QemuKernel.c
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/QemuFwCfgLib/QemuFwCfgLibInternal.h
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/QemuFwCfgLib/QemuFwCfgPei.c
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/QemuFwCfgLib/QemuFwCfgPeiLib.c
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/QemuFwCfgLib/QemuFwCfgPeiLib.inf
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/BaseResetSystemAcpiGed.c
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/BaseResetSystemAcpiGedLib.inf
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/DxeResetSystemAcpiGed.c
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/DxeResetSystemAcpiGedLib.inf
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/ResetSystemAcpiGed.c
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/ResetSystemAcpiLib/ResetSystemAcpiGed.h
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/SerialPortLib/SerialPortLib.c
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/SerialPortLib/SerialPortLib.inf
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/StableTimerLib/Count.S
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/StableTimerLib/TimerLib.c
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/StableTimerLib/TimerLib.inf
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Loongson.dec
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Loongson.dsc
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Loongson.fdf
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Loongson.fdf.inc
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/PlatformPei/Fv.c
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/PlatformPei/MemDetect.c
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/PlatformPei/Platform.c
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/PlatformPei/Platform.h
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/PlatformPei/PlatformPei.inf
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Readme.md
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Sec/LoongArch64/Start.S
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Sec/SecMain.c
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Sec/SecMain.inf

-- 
2.31.1



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