bbl loader
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Copyright (c) 1995-2020 OpenBSD. All rights reserved.  https://www.OpenBSD.org
OpenBSD 6.6-current (GENERIC) #129: Thu Mar 12 19:25:45 PDT 2020
    mars@riscv.c.woven-ridge-230317.internal:/home/mars/riscv/src/openbsd/sys/arch/riscv64/compile/GENERIC
real mem  = 536870912 (512MB)
avail mem = 497025024 (474MB)
warning: no entropy supplied by boot loader
mainbus0 at root: riscv-virtio,qemu
cpu0 at mainbus0: cpu0: QEMU qemu-virt rv64imafdcsu
com0 at mainbus0: ns16550, no working fifo
com0: console
virtio0 at mainbus0: Virtio Block Device
vioblk0 at virtio0
scsibus0 at vioblk0: 2 targets
scsibus0 targ 0 lun 0: <VirtIO, Block Device, > not configured
vioblk_dev_free
virtio0: couldn't establish interrupt