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1b2498fa91
RISC-V 64bit qemu virt machine support has been added in edk2
version "stable202302". See [1].
Since edk2-stable202308, introduced in buildroot in commit 5c9f310
"boot/edk2: bump to version edk2-stable202308", it is now possible
to boot the edk2 UEFI shell in qemu.
This commit adds this early RISC-V support to edk2.
The RISC-V edk2 UEFI shell can be booted in Buildroot with the
following commands:
# Build EDK2 images
cat > .config <<EOF
BR2_riscv=y
BR2_RISCV_64=y
BR2_PACKAGE_HOST_QEMU=y
BR2_PACKAGE_HOST_QEMU_SYSTEM_MODE=y
BR2_TARGET_EDK2=y
EOF
make olddefconfig
make
# edk2 image size should fit the 32MB of qemu pflash memories
truncate -s 32M output/images/RISCV_VIRT_CODE.fd
truncate -s 32M output/images/RISCV_VIRT_VARS.fd
# Start qemu:
output/host/usr/bin/qemu-system-riscv64 \
-M virt,pflash0=pflash0,pflash1=pflash1,acpi=off \
-nographic \
-blockdev node-name=pflash0,driver=file,read-only=on,filename=output/images/RISCV_VIRT_CODE.fd \
-blockdev node-name=pflash1,driver=file,filename=output/images/RISCV_VIRT_VARS.fd
Note: a Qemu version >= 8.0.0 is needed to properly start edk2. A qemu
version on the host system might not be sufficient. This is why the
Buildroot host-qemu is built in this config example.
[1] https://github.com/tianocore/edk2/releases/tag/edk2-stable202302
Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. The documentation can be found in docs/manual. You can generate a text document with 'make manual-text' and read output/docs/manual/manual.text. Online documentation can be found at http://buildroot.org/docs.html To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the target architecture and the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) find the kernel, bootloader, root filesystem, etc. in output/images You do not need to be root to build or run buildroot. Have fun! Buildroot comes with a basic configuration for a number of boards. Run 'make list-defconfigs' to view the list of provided configurations. Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org You can also find us on #buildroot on OFTC IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches