<a href="http://people.redhat.com/~lersek/ovmf-whitepaper-c770f8c.txt">people.redhat.com/~lersek/ovmf-whitepaper-c770f8c.txt</a> Windows 7 won't output anything with ovmf until you install the drivers. I'd recommend either using VGA or using a more modern OS. <div class="gmail_quote">On Sep 23, 2015 7:46 AM, "Okky Hendriansyah" <<a href="mailto:okky@nostratech.com">okky@nostratech.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><div style="color:rgb(0,0,0);margin:0px">Hmm, I once successful passing through to a Windows 7 guest but with using VGA mode, thus I used the Seabios instead of OVMF, install linux-vfio from AUR to have the kernel patched with necessary Intel VGA Arbitration patches, and enable the i915.enable_hd_vgaarb=1 kernel parameter.</div><div style="font-family:Helvetica,Arial;font-size:13px;color:rgba(0,0,0,1.0);margin:0px;line-height:auto"> </div><div style="font-family:Helvetica,Arial;font-size:13px;color:rgba(0,0,0,1.0);margin:0px;line-height:auto">Here’s my script when I use Windows 7: </div><a href="http://pastebin.com/5U2VjuEy" target="_blank"> http://pastebin.com/5U2VjuEy</a><div> <div>-- Okky Hendriansyah</div>On September 23, 2015 at 11:30:47, Francisco Menendez (<a href="mailto:aterfelis@gmail.com" target="_blank">aterfelis@gmail.com</a>) wrote: <blockquote type="cite"><div><div></div><div>Hello, Okky. Thanks for your reply. I removed the x-vga=on option but there isn't any discernible change. Boots normally, but only displays up until "Starting Windows" On Wed, Sep 23, 2015 at 1:10 PM, Okky Hendriansyah <<a href="mailto:okky@nostratech.com" target="_blank">okky@nostratech.com</a>> wrote: > Hi Francisco, > > It seems that you passthrough in VGA mode (x-vga=on) but you are using OVMF > also. Have you tried omiting the x-vga=on switch? > > Best regards, > -- > Okky Hendriansyah > > On September 23, 2015 at 11:05:44, Francisco Menendez (<a href="mailto:aterfelis@gmail.com" target="_blank">aterfelis@gmail.com</a>) > wrote: > > I'm having a bit of an odd issue and would greatly appreciate it if > someone has any clue as of what might be happening. > > The system: > * Intel CPU with VTx and VTd enabled in BIOS > * NVidia GTX 980 - isolated (vfio), to be used by the guest > * Intel graphics for the host (Arch Linux x64) > > What I've done: > > * Added "iommu_intel=on" to the kernel boot command line > * Blacklisted the nouveau driver > * Added the vfio-pci driver and assigned the necessary ids (GPU + > attached HDMI sound) > * Confirmed IOMMU groups ( /sys/kernel/iommu_groups/ -type l output is OK) > * Confirmed vfio-pci capture with dmesg > > What happens: > > After booting windows, I get the GPU displaying the "Starting Windows" > splash screen, with animation and everything. Thus far, I think the > GPU passthrough is successful. However, after that, the screen gets > stuck there while the system keeps booting. I even hear the windows > chime as it starts, but the screen is still showing "Starting Windows" > > If I use emulated VGA, the NVidia card shows "Code 12", but I hear > this is expected if the emulated VGA is turned on. > > The above is also reproducible with the windows installer ( The GPU > output displays: "Windows is loading files" -> "Starting windows" -> > no more screen updates ) > > QEMU commandline: > > -------------- > qemu-system-x86_64 \ > -name windows7 \ > -cpu host,kvm=off \ > -smp 8,sockets=1,cores=4,threads=2 \ > -enable-kvm \ > -machine type=pc,accel=kvm,iommu=on \ > -m 16G -mem-prealloc -balloon none \ > -rtc clock=host,base=utc \ > -soundhw hda \ > -device > ioh3420,bus=pci.0,addr=1c.0,multifunction=on,port=1,chassis=1,id=root.1 > \ > -device vfio-pci,host=01:00.0,bus=root.1,addr=00.0,multifunction=on,x-vga=on > \ > -device vfio-pci,host=01:00.1,bus=root.1,addr=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=/usr/share/edk2.git/ovmf-x64/OVMF_VARS-pure-efi.fd > \ > -drive file=win7.img,if=ide,format=raw,media=disk \ > -monitor stdio \ > -device piix3-usb-uhci -device usb-tablet \ > -vga none -serial null -parallel null -nodefaults -nodefconfig > ---------------- > > Let me know if you need any other information about the setup. > Thank you in advance! > > _______________________________________________ > vfio-users mailing list > <a href="mailto:vfio-users@redhat.com" target="_blank">vfio-users@redhat.com</a> > <a href="https://www.redhat.com/mailman/listinfo/vfio-users" target="_blank">https://www.redhat.com/mailman/listinfo/vfio-users</a> </div></div></blockquote></div></div> _______________________________________________ vfio-users mailing list <a href="mailto:vfio-users@redhat.com">vfio-users@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/vfio-users" rel="noreferrer" target="_blank">https://www.redhat.com/mailman/listinfo/vfio-users</a> </blockquote></div>