Waking this thread up, because I'm seeing similar behavior as Karsten
-- i.e. the system hangs when launching init.
Software:
QEMU emulator version 4.0.50 (v4.0.0-576-g6d8e75d41c58)
Linux kernel v5.2-rc1, defconfig
OpenSBI commit 392749f6338a ("docs: Add documentation about dynamic firmware")
Toolchain-wise: Ubuntu/Debian:
riscv64-linux-gnu-gcc (Ubuntu 8.3.0-6ubuntu1) 8.3.0
Launching the VM with:
~/pkg/qemu/bin/qemu-system-riscv64 \
-nographic \
XXXX
-machine virt \
-smp 2 \
-m 8G \
-object rng-random,filename=/dev/urandom,id=rng0 \
-device virtio-rng-device,rng=rng0 \
-append "console=ttyS0 selinux=0 apparmor=0 loglevel=7 rw
root=/dev/vda2" \
-device virtio-blk-device,drive=hd0 \
-drive file=~/rv/play/debian-sid-sda.raw,format=raw,id=hd0 \
-device virtio-net,mac=36:8c:88:13:10:d2,netdev=network0 \
-netdev tap,id=network0,fd=3 3<>/dev/tap5
Where XXXX:
-kernel ~/src/rv/opensbi/build/platform/qemu/virt/firmware/fw_jump.elf \
-device
loader,file=/home/btopel/build/rv/arch/riscv/boot/Image,addr=0x80200000
\
or
-kernel bbl \ # riscv-pk HEAD
* When riscv-pk carries the payload, the kernel boots and succeeds to
launch init.
* Using OpenSBI commit 392749f6338a ("docs: Add documentation about
dynamic firmware"), the kernel boots, but hangs/spins ("info
registers" says it's "rdcycle").
Bisecting OpenSBI, it looks like commit 90cb4917b584 ("lib: Implement
sfence.vma correctly.") broke something. At least prior that, the VM
launches correctly.
I haven't looked further -- any ideas?
Thanks,
Björn
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