[vfio-users] IGD passthrough

[fulaiyang]

hello，last week，I had met the same problem when I passthrough the Gpu with 6100u. The video rom setting by the bios may affect the IGD passthrough. However we can not see this setting in the bios. So I change the bios version by contacting the manufacturer and it works.
Sorry about my poor English，hope helpful to you.




At 2017-02-08 19:37:31, "José A. Gómez" <mailgomez at gmail.com> wrote:

Hello,

Still trying to pass the video from my intel hd4600 cpu to a VM with no
luck. It stops in "Running option rom at c000:0003"

when I launch the VM vm.log:

http://pastebin.com/X7sAX2jg


/proc/iomem after launching the VM

http://pastebin.com/N389ps0d


dmesg:

http://pastebin.com/dj1g0jMi

VM:
echo 1 > /sys/module/kvm/parameters/ignore_msrs
qemu-system-x86_64 -enable-kvm -M pc,accel=kvm -m 4096 -cpu host \
-smp 4,sockets=1,cores=4,threads=1 \
-vga none \
-display none \
-device vfio-pci,host=00:02.0,bus=pci.0,addr=02.0 \
-drive file=/home/mv/winIGD.qcow2,cache=none,if=virtio,format=qcow2 \
-device vfio-pci,host=0f:00.0 \
-device vfio-pci,host=10:00.0 \
-chardev stdio,id=seabios \
-device isa-debugcon,iobase=0x402,chardev=seabios \

-netdev user,id=vmnic -device virtio-net,netdev=vmnic \


Thanks
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/vfio-users/attachments/20170220/32ecba80/attachment.htm>