[Bug 639712] Re: PCI Pass Through via libvirt cannot remap IRQ's

[James Neave]

Hi,

Looks like this is also affecting me. :(

I'm trying to pass a PCI tuner through to a virtual machine, I have an AMD 890FX based board with IOMMU and it's switched on in the BIOS.
Running Ubuntu server 10.10 x64.

Flashydave: It sounds like you've actually got this working, have you
written a guide on how to to it by any chance?

/var/log/libvirt/qemu/test.log:

LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/sbin:/sbin:/bin QEMU_AUDIO_DRV=none /usr/bin/kvm -S -M pc-0.12 -enable-kvm -m 512 -smp 3,sockets=3,cores=1,threads=1 -name test -uuid 8bda983a-8f07-80ac-da02-2c7298637d96 -nodefaults -chardev socket,id=monitor,path=/var/lib/libvirt/qemu/test.monitor,server,nowait -mon chardev=monitor,mode=readline -rtc base=utc -boot c -drive file=/var/lib/libvirt/images/test.img,if=none,id=drive-virtio-disk0,boot=on,format=raw -device virtio-blk-pci,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0 -drive if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -device virtio-net-pci,vlan=0,id=net0,mac=52:54:00:dd:10:7d,bus=pci.0,addr=0x3 -net tap,fd=56,vlan=0,name=hostnet0 -chardev pty,id=serial0 -device isa-serial,chardev=serial0 -usb -vnc 127.0.0.1:0 -vga cirrus -device pci-assign,host=08:06.0,id=hostdev0,bus=pci.0,addr=0x6 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 
char device redirected to /dev/pts/1
pci_add_option_rom: failed to find romfile "pxe-virtio.bin"
Failed to assign device "hostdev0" : Device or resource busy
Failed to deassign device "hostdev0" : Invalid argument
Error initializing device pci-assign

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https://bugs.launchpad.net/bugs/639712

Title:
  PCI Pass Through via libvirt cannot remap IRQ's