permissions: 0.796 other: 0.753 graphic: 0.748 device: 0.745 boot: 0.739 PID: 0.718 files: 0.705 socket: 0.690 vnc: 0.666 debug: 0.659 network: 0.651 semantic: 0.640 performance: 0.638 KVM: 0.462 Windows 7 installation DVD can't boot in qemu 2.6.0/OVMF With Qemu 2.5.50 (compiled from git some time ago) I can boot Windows 7 x64 installation DVD as follows: ~/code/qemu-v2/bin/slic-v2/native/x86_64-softmmu/qemu-system-x86_64 \ -machine type=pc,accel=kvm \ -enable-kvm \ -cpu host \ -m 2048 \ -vga cirrus \ -boot d \ -drive if=pflash,file=/vms/ovmf_x64_firstrun.bin,format=raw \ -cdrom /vms/win7_sp1.iso \ -monitor stdio This bug suggests different vga options https://bugs.launchpad.net/qemu/+bug/1581936. Here's the behaviours I'm getting with 2.6.0: std - "Starting Windows" with wavering flag hangs indefinitely cirrus - at "Starting Windows" wasps of light freeze before assembling into a flag qxl - "Starting Windows" with wavering flag hangs indefinitely virtio - "Starting Windows" with wavering flag hangs indefinitely supposed to be fixed by , please confirm Running on latest git code a93c1bdf0bd4689287094ddb2aae3dc907da3535, DVD loads installation screen on everything except cirrus (same symptom). I don't really need cirrus, but I can test patches if you want. The following combination: - OVMF without the SeaBIOS CSM ("pure EFI" in Gerd's RPMs) - Cirrus video card - Windows 7 installer in the guest has never been supported. The VBE Shim in OVMF works on stdvga and QXL only. This is documented; please refer to OvmfPkg/README, section "UEFI Windows 7 & Windows 2008 Server". According to your results, stuff works on latest QEMU, in all configurations that are expected to be functional. Gerd CC'd