[vfio-users] QEMU / KVM VFIO ("no signal" message)

[Leonardo Caldas]

2015-11-03 23:03 GMT-03:00 Alex Williamson <alex.l.williamson at gmail.com>:

> On Tue, Nov 3, 2015 at 6:58 PM, Leonardo Caldas <leonardo.caldas at xleox.org
> > wrote:
>
>> 2015-11-03 19:14 GMT-03:00 Alex Williamson <alex.l.williamson at gmail.com>:
>> Well, I used your files... also tried to generate my own using your
>> suggestions (and passing them as parameters to "romfile"), but it keeps
>> without video signal...
>> Is there any logs I could possibly analyze in order to see whether the
>> romfile parameter is working?
>>
>
> You could post your QEMU command line.  You can configure QEMU with the
> option  --enable-trace-backend=stderr, build, install and then run with the
> option '-trace events=<file>', where <file> looks something like this:
>
> # cat /tmp/trace-events.txt
> vfio*
>
> You'll probably want to run it within script or tee to a file to get the
> output.
>


sudo qemu-system-x86_64 \
  -enable-kvm \
  -m 8192 \
  -cpu host,kvm=off \
  -smp sockets=1,cores=4,threads=8 \
  -device
vfio-pci,host=01:00.0,multifunction=on,romfile=/tmp/N680O2GD.F5.rom.uefi \
  -device vfio-pci,host=01:00.1 \
  -drive
if=pflash,format=raw,readonly,file=/usr/share/edk2.git/ovmf-x64/OVMF_CODE-pure-efi.fd
\
  -drive if=pflash,format=raw,file=/tmp/my_vars.fd \
  -vga none

I've tried several variations, but this is the exact command line I'm
trying now. By the way, I followed this link:
https://wiki.archlinux.org/index.php/PCI_passthrough_via_OVMF

-- 
Atenciosamente,

Leonardo Caldas
http://blog.xleox.org
leonardo.caldas at xleox.org
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