Reviewed-by: Sunil V L <sunilvl@ventanamicro.com>
On Fri, Jun 23, 2023 at 11:39:27AM -0700, Tuan Phan wrote:
> This series adds MMU support for RISC-V. Only SV39/48/57 modes
> are supported and tested. The MMU is required to support setting
> page attribute which is the first basic step to support security
> booting on RISC-V.
>
> There are two parts:
> 1. Add MMU base library. MMU will be enabled during
> CpuDxe initialization.
> 2. Fix all resources should be populated in HOB
> or added to GCD by driver before accessing when MMU enabled.
>
> All changes can be found in the branch tphan/riscv_mmu at:
> https://github.com/pttuan/edk2.git
>
> Changes in v4:
> - Rebased master.
> - Added VirtNorFlashDxe to APRIORI DXE list.
>
> Changes in v3:
> - Move MMU library to UefiCpuPkg.
> - Add Andrei reviewed-by.
>
> Changes in v2:
> - Move MMU core to a library.
> - Setup SATP mode as highest possible that HW supports.
>
> Tuan Phan (7):
> MdePkg/BaseLib: RISC-V: Support getting satp register value
> MdePkg/Register: RISC-V: Add satp mode bits shift definition
> OvmfPkg/RiscVVirt: VirtNorFlashPlatformLib: Fix wrong flash size
> OvmfPkg/RiscVVirt: SEC: Add IO memory resource hob for platform
> devices
> OvmfPkg/RiscVVirt: Add VirtNorFlashDxe to APRIORI list
> OvmfPkg: RiscVVirt: Remove satp bare mode setting
> UefiCpuPkg: RISC-V: Support MMU with SV39/48/57 mode
>
> MdePkg/Include/Library/BaseLib.h | 5 +
> .../Include/Register/RiscV64/RiscVEncoding.h | 7 +-
> MdePkg/Library/BaseLib/RiscV64/RiscVMmu.S | 8 +
> .../VirtNorFlashStaticLib.c | 3 +-
> OvmfPkg/RiscVVirt/RiscVVirt.dsc.inc | 1 +
> OvmfPkg/RiscVVirt/RiscVVirtQemu.fdf | 10 +
> OvmfPkg/RiscVVirt/Sec/Memory.c | 18 +-
> OvmfPkg/RiscVVirt/Sec/Platform.c | 62 ++
> UefiCpuPkg/CpuDxeRiscV64/CpuDxe.c | 9 +-
> UefiCpuPkg/CpuDxeRiscV64/CpuDxe.h | 2 +
> UefiCpuPkg/CpuDxeRiscV64/CpuDxeRiscV64.inf | 2 +
> UefiCpuPkg/Include/Library/BaseRiscVMmuLib.h | 39 ++
> .../Library/BaseRiscVMmuLib/BaseRiscVMmuLib.c | 569 ++++++++++++++++++
> .../BaseRiscVMmuLib/BaseRiscVMmuLib.inf | 26 +
> .../Library/BaseRiscVMmuLib/RiscVMmuCore.S | 31 +
> 15 files changed, 770 insertions(+), 22 deletions(-)
> create mode 100644 UefiCpuPkg/Include/Library/BaseRiscVMmuLib.h
> create mode 100644 UefiCpuPkg/Library/BaseRiscVMmuLib/BaseRiscVMmuLib.c
> create mode 100644 UefiCpuPkg/Library/BaseRiscVMmuLib/BaseRiscVMmuLib.inf
> create mode 100644 UefiCpuPkg/Library/BaseRiscVMmuLib/RiscVMmuCore.S
>
> --
> 2.25.1
>
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