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authorMaximilian Brune <maximilian.brune@9elements.com>2024-02-24 04:34:55 +0100
committerron minnich <rminnich@gmail.com>2024-03-05 18:57:29 +0000
commitee1cb8f46362576880f4c326ee6c5a51aa9c5af3 (patch)
treea1526890264366147d8c7b9ab83421eca2138bb5 /Documentation
parent3304c1cbad6b9b6cd8523e513cb953a8396bda46 (diff)
mb/emulation/qemu-riscv: Change to -bios option
This changes the virt target so that it can be run with the -bios option and a pflash backend for the flash. QEMU can now be run as follows: qemu -M virt -m 1G -nographic -bios build/coreboot.rom \ -drive if=pflash,file=./build/coreboot.rom,format=raw coreboot will start in DRAM, but still have a flash to put CBFS onto and to load subsequent stages and payload from. Tested bootflow: coreboot -> OpenSBI -> Linux -> u-root Signed-off-by: Maximilian Brune <maximilian.brune@9elements.com> Change-Id: I009d97fa3e13068b91c604e987e50a65e525407d Reviewed-on: https://review.coreboot.org/c/coreboot/+/80746 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: ron minnich <rminnich@gmail.com> Reviewed-by: Philipp Hug <philipp@hug.cx>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/mainboard/emulation/qemu-riscv.md9
1 files changed, 6 insertions, 3 deletions
diff --git a/Documentation/mainboard/emulation/qemu-riscv.md b/Documentation/mainboard/emulation/qemu-riscv.md
index ed2c6d5892..9ccc1b7265 100644
--- a/Documentation/mainboard/emulation/qemu-riscv.md
+++ b/Documentation/mainboard/emulation/qemu-riscv.md
@@ -3,6 +3,9 @@
## Building coreboot and running it in QEMU
- Configure coreboot and run `make` as usual
-- Run `util/riscv/make-spike-elf.sh build/coreboot.rom build/coreboot.elf` to
- convert coreboot to an ELF that QEMU can load
-- Run `qemu-system-riscv64 -M virt -m 1024M -nographic -kernel build/coreboot.elf`
+
+Run QEMU
+```
+qemu-system-riscv64 -M virt -m 1G -nographic -bios build/coreboot.rom \
+ -drive if=pflash,file=./build/coreboot.rom,format=raw
+```