Reviewed-by: Sunil V L <suni...@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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