[PATCH v2 0/3] New RISC-V Patches

["Daniel Schaefer" <daniel.schaefer@hpe.com>]

In this updated version I addressed Leif's comments and made the following
changes:

- Refactor sbi_call* to SbiCall* (EDKII style)
- Use OpenSBI constants if possible
- Include Base.h in OpensbiTypes.h
- Only use __builtin_expect with Clang and GCC (not MSVC)

I'm sorry, I hadn't explained the new branches properly.
Previously we had all code going to EDK2 via the RISC-V-V2 branch.

Now we're only making the least amount of necessary changes in edk2 and
everything else in edk2-platforms.
Those changes to edk2 can be grouped into different categories:

- Patches for RISC-V EDK2 CI enablement
- Patches for edk2 modules other than RISC-V ones, to allow building them with the RISC-V toolchain
- Other RISC-V enablement like PE/COFF relocation

Those have all been reviewed and merged to edk2 master.

Previously we had two packages just for RISC-V on our edk2 branch:
  RiscVPkg and RiscVPlatformPkg
They are now under
  Platform/RISC-V/PlatformPkg and Silicon/RISC-V/ProcessorPkg
in edk2-platforms.
You, Leif, have previously reviewed those. In addition to this old code, which
was moved, we need some more patches to allow running PEI in S-Mode and
building in edk2-platforms. That's what this patch series is about.

In the previous version of this patchseries I forgot to attach the biggest new
commit, which adds RiscVEdk2SbiLib. It wraps the ecall interface for calling
SBI in a C API and lets PEI and DXE call SBI interfaces. Because we need more
M-Mode capabilities in PEI and DXE than SBI gives us, we register another SBI
extension, that gives us access to the mscratch register.

I hope now it makes more sense.

- Daniel

Cc: Abner Chang <abner.chang@hpe.com>
Cc: Gilbert Chen <gilbert.chen@hpe.com>
Cc: Michael D Kinney <michael.k.kinney@intel.com>
Cc: Leif Lindholm <leif@nuviainc.com>

Abner Chang (1):
  ProcessorPkg/Library: Add RiscVOpensbiLib

Daniel Schaefer (2):
  ProcessorPkg/RiscVOpensbLib: Add opensbi submodule
  ProcessorPkg/Library: Add RiscVEdk2SbiLib

 Silicon/RISC-V/ProcessorPkg/Library/RiscVEdk2SbiLib/RiscVEdk2SbiLib.inf |  28 +
 Silicon/RISC-V/ProcessorPkg/Library/RiscVOpensbiLib/RiscVOpensbiLib.inf |  60 ++
 Silicon/RISC-V/ProcessorPkg/Include/IndustryStandard/RiscVOpensbi.h     |  72 ++
 Silicon/RISC-V/ProcessorPkg/Include/Library/RiscVEdk2SbiLib.h           | 631 ++++++++++++++++
 Silicon/RISC-V/ProcessorPkg/Include/OpensbiTypes.h                      |  73 ++
 Silicon/RISC-V/ProcessorPkg/Library/RiscVEdk2SbiLib/RiscVEdk2SbiLib.c   | 789 ++++++++++++++++++++
 .gitmodules                                                             |   3 +
 Readme.md                                                               |  36 +
 Silicon/RISC-V/ProcessorPkg/Library/RiscVOpensbiLib/opensbi             |   1 +
 9 files changed, 1693 insertions(+)
 create mode 100644 Silicon/RISC-V/ProcessorPkg/Library/RiscVEdk2SbiLib/RiscVEdk2SbiLib.inf
 create mode 100644 Silicon/RISC-V/ProcessorPkg/Library/RiscVOpensbiLib/RiscVOpensbiLib.inf
 create mode 100644 Silicon/RISC-V/ProcessorPkg/Include/IndustryStandard/RiscVOpensbi.h
 create mode 100644 Silicon/RISC-V/ProcessorPkg/Include/Library/RiscVEdk2SbiLib.h
 create mode 100644 Silicon/RISC-V/ProcessorPkg/Include/OpensbiTypes.h
 create mode 100644 Silicon/RISC-V/ProcessorPkg/Library/RiscVEdk2SbiLib/RiscVEdk2SbiLib.c
 create mode 100644 .gitmodules
 create mode 160000 Silicon/RISC-V/ProcessorPkg/Library/RiscVOpensbiLib/opensbi

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2.26.1