The opensbi package from Ubuntu 20.04 only provides rv64 firmwares:
$ dpkg -S opensbi | grep -E "fw_.*bin|fw_.*elf" | uniq opensbi: /usr/lib/riscv64-linux-gnu/opensbi/generic/fw_dynamic.bin opensbi: /usr/lib/riscv64-linux-gnu/opensbi/generic/fw_jump.bin opensbi: /usr/lib/riscv64-linux-gnu/opensbi/generic/fw_dynamic.elf opensbi: /usr/lib/riscv64-linux-gnu/opensbi/generic/fw_jump.elf
To run this nolibc test for rv32, users must build opensbi or download a prebuilt one from qemu repository:
https://gitlab.com/qemu-project/qemu/-/blob/master/pc-bios/opensbi-riscv32-g...
And then use -bios to tell qemu use it to avoid such failure:
$ qemu-system-riscv32 -display none -no-reboot -kernel /path/to/arch/riscv/boot/Image -serial stdio -M virt -append "console=ttyS0 panic=-1" qemu-system-riscv32: Unable to load the RISC-V firmware "opensbi-riscv32-generic-fw_dynamic.bin"
To run from makefile, QEMU_ARGS_EXTRA is added to allow pass extra arguments like -bios:
$ make run QEMU_ARGS_EXTRA="-bios /path/to/opensbi-riscv32-generic-fw_dynamic.bin" ...
Suggested-by: Thomas Weißschuh linux@weissschuh.net Link: https://lore.kernel.org/linux-riscv/2ab94136-d341-4a26-964e-6d6c32e66c9b@t-8... Signed-off-by: Zhangjin Wu falcon@tinylab.org --- tools/testing/selftests/nolibc/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/nolibc/Makefile b/tools/testing/selftests/nolibc/Makefile index 47c3c89092e4..44088535682e 100644 --- a/tools/testing/selftests/nolibc/Makefile +++ b/tools/testing/selftests/nolibc/Makefile @@ -64,7 +64,7 @@ QEMU_ARGS_mips = -M malta -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)" QEMU_ARGS_riscv = -M virt -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)" QEMU_ARGS_s390 = -M s390-ccw-virtio -m 1G -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)" QEMU_ARGS_loongarch = -M virt -append "console=ttyS0,115200 panic=-1 $(TEST:%=NOLIBC_TEST=%)" -QEMU_ARGS = $(QEMU_ARGS_$(ARCH)) +QEMU_ARGS = $(QEMU_ARGS_$(ARCH)) $(QEMU_ARGS_EXTRA)
# OUTPUT is only set when run from the main makefile, otherwise # it defaults to this nolibc directory.