Add a readme file which provides information regarding how to build and test EDK2 on RISC-V qemu virt platform.
Signed-off-by: Sunil V L <suni...@ventanamicro.com> Cc: Ard Biesheuvel <ardb+tianoc...@kernel.org> Cc: Jiewen Yao <jiewen....@intel.com> Cc: Jordan Justen <jordan.l.jus...@intel.com> Cc: Gerd Hoffmann <kra...@redhat.com> Cc: Andrei Warkentin <andrei.warken...@intel.com> Cc: Heinrich Schuchardt <heinrich.schucha...@canonical.com> --- OvmfPkg/RiscVVirt/README.md | 49 +++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 OvmfPkg/RiscVVirt/README.md diff --git a/OvmfPkg/RiscVVirt/README.md b/OvmfPkg/RiscVVirt/README.md new file mode 100644 index 000000000000..950694419e8b --- /dev/null +++ b/OvmfPkg/RiscVVirt/README.md @@ -0,0 +1,49 @@ +# Support for RISC-V QEMU virt platform + +## Overview +RISC-V QEMU 'virt' is a generic platform which does not correspond to any real +hardware. + +EDK2 for RISC-V virt platform is a payload (S-mode) for the previous stage M-mode +firmware like OpenSBI. It follows PEI less design. + +The minimum QEMU version required is +**[8.1](https://wiki.qemu.org/Planning/8.1)** or with commit +[7efd65423a](https://github.com/qemu/qemu/commit/7efd65423ab22e6f5890ca08ae40c84d6660242f) +which supports separate pflash devices for EDK2 code and variable storage. + +## Build + export WORKSPACE=`pwd` + export GCC5_RISCV64_PREFIX=riscv64-linux-gnu- + export PACKAGES_PATH=$WORKSPACE/edk2 + export EDK_TOOLS_PATH=$WORKSPACE/edk2/BaseTools + source edk2/edksetup.sh + make -C edk2/BaseTools + source edk2/edksetup.sh BaseTools + build -a RISCV64 --buildtarget RELEASE -p OvmfPkg/RiscVVirt/RiscVVirtQemu.dsc -t GCC5 + +## Test +Below example shows how to boot openSUSE Tumbleweed E20. + +1) RISC-V QEMU pflash devices should be of of size 32MiB. + + `truncate -s 32M Build/RiscVVirtQemu/RELEASE_GCC5/FV/RISCV_VIRT_CODE.fd` + + `truncate -s 32M Build/RiscVVirtQemu/RELEASE_GCC5/FV/RISCV_VIRT_VARS.fd` + +2) Running QEMU + + qemu-system-riscv64 \ + -M virt,pflash0=pflash0,pflash1=pflash1,acpi=off \ + -m 4096 -smp 2 \ + -serial mon:stdio \ + -device virtio-gpu-pci -full-screen \ + -device qemu-xhci \ + -device usb-kbd \ + -device virtio-rng-pci \ + -blockdev node-name=pflash0,driver=file,read-only=on,filename=RISCV_VIRT_CODE.fd \ + -blockdev node-name=pflash1,driver=file,filename=RISCV_VIRT_VARS.fd \ + -netdev user,id=net0 \ + -device virtio-net-pci,netdev=net0 \ + -device virtio-blk-device,drive=hd0 \ + -drive file=openSUSE-Tumbleweed-RISC-V-E20-efi.riscv64.raw,format=raw,id=hd0 -- 2.34.1 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#106205): https://edk2.groups.io/g/devel/message/106205 Mute This Topic: https://groups.io/mt/99641171/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
