Since the failure install newest QEMU and libvirt on 14.04, I'm tried installing on 15.10 yesterday. Using the package that from jacob's repository, and re-install QEMU again by using QEMU git source. Finally I can launched VM /w OVMF and GTX980 in Windows 10 guest.
But I got few issues. 1. The official kernel of Ubuntu 15.10 is 4.2.0-16-generic I used to enable VFIO to get GPU controll by using CMDLINE and /etc/initramfs.d/modules CMDLINE_DEFAULT="intel_iommu=on vfio-pci.ids=XXXX:XXXX,XXXX:XXXX" and add vfio vfio_pci vfio_iommu_type1 vfio_virqfd inti /etc/initramfs.d/modules then run update-initramfs and update-grub. It works on 14.04, but when I try the same thing on 15.10, VFIO only got HDMI control, GTX980 still controlled by nouveau. I have to set blacklist on nouveau to let VFIO get fully control. 2. When I trying to install Windows 7 guest, I'm using OVMF to do initial installation. After installation, I deleted QXL and spice, then mount GTX980 into guest. But it stuck at "Starting Windows" with logo came out, only freeze, no BSOD. Then I checked XML profile and found that the machine-type is i440fx-2.5 I edited to i440fx-2.4 then boot again, now everything goes right. Is that a problem on i440fx-2.5? 3. I still can't mount GPU to guest that firmware is using legacy BIOS. I'll got BSOD with 0x3B error code after installed GPU driver with kvm=off every time. No matter the machine is 1440fx or Q35. And it also happened on Fedora 22 host. Both platform are installed QEMU got version because it included Hyper-V patch. Does anyone have idea? Or got same issue? Many thanks, Eddie.
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