On Thu, Jan 26, 2017 at 10:16 PM, Bruno Haible <[email protected]> wrote: > Mark Cave-Ayland wrote: >> >> The hardware emulated by QEMU on this platform is >> >> hub 0 >> >> \ hub0port1: user.0: index=0,type=user,net=10.0.2.0,restrict=off >> >> \ hub0port0: ne2k_pci.0: >> >> index=0,type=nic,model=ne2k_pci,macaddr=52:54:00:12:34:56 >> >> Does anyone happen to know? >> > >> > You should ask Mark Cave-Ayland or Artyom Tarasenko who are the >> > maintainers for >> > the SPARC target in qemu. >> >> I can confirm that virtio does work in QEMU, but only in legacy (0.9) >> mode - for some reason if 1.0 mode is used then we seem to hang because >> we're missing an interrupt. I've managed to recreate this locally but >> not had the time to dig into the details yet - any help always >> appreciated :) >> >> The command line you need for virtio on QEMU looks something like this: >> >> ./qemu-system-sparc64 -drive >> file=debian-9.0-sparc64-NETINST-1.iso,if=none,index=0,id=cd,media=cdrom >> -device virtio-blk-pci,disable-modern=on,drive=cd -nographic > > Thanks for the attempt to help. But I don't have a need for virtio for > the disk or cdrom - the default works perfectly fine there. The problem I > have is with the network card: the default doesn't work, and virtio > (as recommended by Artyom) crashes qemu.
To be more specific, it's not crashing qemu. It just brings the emulated system in a condition in which it won't function (trap after the maximal trap level is reached). So it's not necessarily a qemu bug. Can be a virtio/kernel bug as well. But there is a point in Marks reply: maybe nowadays virtio-net also has to be switched into the legacy mode. Instead of "-net nic,model=virtio -net user" can you please try: -netdev user,id=hostnet0 -device virtio-net-pci,disable-modern=off,disable-legacy=off,disable-modern=on,netdev=hostnet0 -- Regards, Artyom Tarasenko SPARC and PPC PReP under qemu blog: http://tyom.blogspot.com/search/label/qemu
