Hello,

Here are three patches that provide a SerialLib backed by SBI console. 
Both legacy and DBCN mechanisms are supported in various execution environments and have been tested with UART and HTIF consoles.

MdePkg reviewers: please review MdePkg.dsc changes.

This is also available at
https://github.com/andreiw/edk2-rv-wip/tree/patchset-2

Compared to v4:

(not sent out). CC MdePkg maintainers, fix copyright date in SecMain.c.

Comapred to v3

EccCheck fixes. Add MdePkg infs to DSC.

Compared to v2:
- Probes legacy extension as well.
- Encode supported module types in the INF file. This is done using LIBRARY_CLASS,
  as MODULE_TYPE cannot encode multiple types, so MODULE_TYPE is retained as BASE.
- Update INF version and generate brand new GUIDs instead of editing them.
- Checked that all patches retain ^M endings.


Andrei Warkentin (3):
  MdePkg: BaseRiscVSbiLib: make more useful to consumers
  MdePkg: add SBI-based SerialPortLib for RISC-V
  OvmfPkg: RiscVVirt: Add missing SerialPortInitialize to Sec

 MdePkg/MdePkg.dsc                                                              |   2 +
 MdePkg/Library/PrePiDxeRiscVSerialPortLibSbi/PrePiDxeRiscVSerialPortLibSbi.inf |  36 +++
 MdePkg/Library/SecPeiRiscVSerialPortLibSbi/SecPeiRiscVSerialPortLibSbi.inf     |  39 +++
 OvmfPkg/RiscVVirt/Sec/SecMain.inf                                              |   1 +
 MdePkg/Include/Library/BaseRiscVSbiLib.h                                       |  40 ++-
 OvmfPkg/RiscVVirt/Sec/SecMain.h                                                |   1 +
 MdePkg/Library/BaseRiscVSbiLib/BaseRiscVSbiLib.c                               |   3 +-
 MdePkg/Library/PrePiDxeRiscVSerialPortLibSbi/PrePiDxeRiscVSerialPortLibSbi.c   | 288 ++++++++++++++++++++
 MdePkg/Library/SecPeiRiscVSerialPortLibSbi/SecPeiRiscVSerialPortLibSbi.c       | 233 ++++++++++++++++
 OvmfPkg/RiscVVirt/Sec/SecMain.c                                                |   4 +-
 MdePkg/Library/PrePiDxeRiscVSerialPortLibSbi/PrePiDxeRiscVSerialPortLibSbi.uni |  16 ++
 MdePkg/Library/SecPeiRiscVSerialPortLibSbi/SecPeiRiscVSerialPortLibSbi.uni     |  16 ++
 12 files changed, 673 insertions(+), 6 deletions(-)
 create mode 100644 MdePkg/Library/PrePiDxeRiscVSerialPortLibSbi/PrePiDxeRiscVSerialPortLibSbi.inf
 create mode 100644 MdePkg/Library/SecPeiRiscVSerialPortLibSbi/SecPeiRiscVSerialPortLibSbi.inf
 create mode 100644 MdePkg/Library/PrePiDxeRiscVSerialPortLibSbi/PrePiDxeRiscVSerialPortLibSbi.c
 create mode 100644 MdePkg/Library/SecPeiRiscVSerialPortLibSbi/SecPeiRiscVSerialPortLibSbi.c
 create mode 100644 MdePkg/Library/PrePiDxeRiscVSerialPortLibSbi/PrePiDxeRiscVSerialPortLibSbi.uni
 create mode 100644 MdePkg/Library/SecPeiRiscVSerialPortLibSbi/SecPeiRiscVSerialPortLibSbi.uni

-- 
2.25.1



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