[cc +vfio-users] On Thu, 19 Oct 2017 14:20:09 +0200 red...@vanvoorn.com wrote:
> On 2017-10-18 03:28, Alex Williamson wrote: > > On Wed, 18 Oct 2017 03:10:20 +0200 > > red...@vanvoorn.com wrote: > > > >> Dear vfio-users, > >> > >> I am having trouble passing through my GTX 660 with KVM. > >> > >> When using SeaBIOS, I always get "device does not support requested > >> feature x-vga". With OVMF, no matter what vbios I pass through, I get > >> no > >> output. > >> > >> Could you please take a look at it since I have been working on it for > >> a > >> while? > >> > >> With kind regards, > >> > >> Peter Alias Mazhive. > >> > >> Below is my specs, the exact error, and lspci info. Please let me know > >> if you need anything else. > >> > >> > >> ########################## > >> fedora 26 4.13.5-200.fc26.x86_64 > >> > >> Mobo: ASUS: Maximus viii hero > >> bios : 3201x64 > >> ASUS : GTX660DC2O2GD5 in the first slot a pciex16x8 > >> > >> ########################### > >> # virt-manager error > >> ######################## > >> > >> Error starting domain: internal error: qemu unexpectedly closed the > >> monitor: 2017-10-18T00:46:08.309736Z qemu-system-x86_64: -device > >> vfio-pci,host=01:00.0,x-vga=on,id=hostdev0,bus=pci.0,addr=0x2: vfio > >> error: 0000:01:00.0: failed getting region info for VGA region index > >> 8: > >> Invalid argument > >> device does not support requested feature x-vga > > > > Are you using the disable_vga option of vfio-pci? > > > > What does this show? > > > > # cat /sys/module/vfio_pci/parameters/disable_vga > > > > Fedora kernels should have the right config options to enable VGA > > access through vfio. > > > > Run rom-parser on the ROM file to make sure it has a UEFI section and > > matches your device: > > > > https://github.com/awilliam/rom-parser > > > > Thanks, > > Alex > > Thanx for your super fast reply, after your reply we have been trying to > set the disable vga to 1 and that got rid of the error BUT ,.. still no > output on the gtx. Even before installing windows10 setting the kvm > hidden flag and vendor id flag to the xml we get the (in)famous code43. > So where to go from here on ?? No, I asked if disable_vga was set because that's the only way I could figure that you were getting such an error using x-vga=on. I was NOT suggesting to set it, it's exclusively for using a UEFI ROM with OVMF, and you didn't bother to run rom-parser to check the ROM. > Your sugestions of reading the intel-iommu is following. > > cat /sys/class/iommu/dmar*/intel-iommu/cap > 1c0000c40660462 > d2008c40660462 This was to answer a question in a different thread, it's not even related to your issue. _______________________________________________ vfio-users mailing list vfio-users@redhat.com https://www.redhat.com/mailman/listinfo/vfio-users
