RISC-V: Add MMU support 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 three parts: 1. Add MMU base library. MMU will be enabled during CpuDxe initialization. 2. Fix OvmfPkg/VirtNorFlashDxe that failed to add flash base address to GCD if already done. 3. 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 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 UefiCpuPkg: RISC-V: Support MMU with SV39/48/57 mode OvmfPkg/RiscVVirt: Remove satp bare mode setting OvmfPkg/RiscVVirt: VirtNorFlashPlatformLib: Fix wrong flash size OvmfPkg/VirtNorFlashDxe: Not add memory space if it exists OvmfPkg/RiscVVirt: SEC: Add IO memory resource hob for platform devices 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/Sec/Memory.c | 18 +- OvmfPkg/RiscVVirt/Sec/Platform.c | 62 ++ OvmfPkg/RiscVVirt/Sec/SecMain.inf | 1 + OvmfPkg/VirtNorFlashDxe/VirtNorFlashDxe.c | 25 +- 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 + 16 files changed, 777 insertions(+), 31 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 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#105339): https://edk2.groups.io/g/devel/message/105339 Mute This Topic: https://groups.io/mt/99159992/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
