[edk2-platforms][PATCH V4 0/8] Loongarch add flash device.

["xianglai" <lixianglai@loongson.cn>]

This is a patch series that contains:
1.Loongarch add flash device driver.
2.Loongarch add nvme device driver.
3.Optimize the mmu lib of loongarch.
4.Enable zero address protection.

v4 changes:
-Modify the commit messgae of patch1 and patch2.

v3 changes:
- Split flash driver patch.

v2 changes:
- Split the MMU lib-related patches further.
- Remove the for loop of flash information lookup
  in VirtNorFlashPlatformLib Because the Loongarch
  virtual machine only emulates one flash .
- Add the necessary comments in VirtNorFlashPlatformLib.
- Remove the hard coding associated with the Flash base address.
- Optimize the process of converting huge pages to
   page table entries in MMU lib.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Bibo Mao <maobibo@loongson.cn>
Cc: Chao Li <lichao@loongson.cn>
Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Michael D Kinney <michael.d.kinney@intel.com>

xianglai li (8):
  Platform/Loongson: Add bootmode support.
  Platform/Loongson: Add nvme device driver for loongarch.
  Platform/Loongson: Add pflash driver.
  Platform/Loongson: Support pflash for loongarch.
  Platform/Loongson: Modify the page table entry access priority.
  Platform/Loongson: Optimize page table entry null determination.
  Platform/Loongson: Optimize the huge page and page entry conversion.
  Platform/Loongson: Enable zero address protection.

 .../Library/MmuLib/MmuBaseLibPei.inf          |   2 +
 .../Library/MmuLib/MmuLibCore.c               | 119 +++++++++++----
 .../Library/MmuLib/MmuLibCorePei.c            |   5 +
 .../LoongArchQemuPkg/Library/MmuLib/page.h    |   5 +-
 .../Library/NorFlashQemuLib/NorFlashQemuLib.c | 141 ++++++++++++++++++
 .../NorFlashQemuLib/NorFlashQemuLib.inf       |  43 ++++++
 .../Loongson/LoongArchQemuPkg/Loongson.dsc    |  22 ++-
 .../Loongson/LoongArchQemuPkg/Loongson.fdf    |   8 +-
 .../LoongArchQemuPkg/PlatformPei/Platform.c   |   5 +
 .../LoongArchQemuPkg/VarStore.fdf.inc         |  67 +++++++++
 10 files changed, 375 insertions(+), 42 deletions(-)
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/NorFlashQemuLib/NorFlashQemuLib.c
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/Library/NorFlashQemuLib/NorFlashQemuLib.inf
 create mode 100644 Platform/Loongson/LoongArchQemuPkg/VarStore.fdf.inc

-- 
2.31.1