Public bug reported: I try to passthrough my Intel GPU with this command:
qemu-system-x86_64 -nodefaults -parallel none -k de -rtc base=localtime -serial unix:/run/qemu/win7-serial.sock,server,nowait -monitor unix:/run/qemu/win7-monitor.sock,server,nowait -netdev user,id=net0 -device virtio-net-pci,netdev=net0,mac=52:54:00:00:00:07 -device vfio- pci,host=0000:00:02.0,addr=0x2 -device vfio-pci,host=0000:00:1b.0 -device virtio-keyboard-pci -device virtio-mouse-pci -object input- linux,id=kbd1,evdev=/dev/input/by-path/pci-0000:00:1a.0-usb-0:1.2.2:1.2 -event-kbd,grab_all=on,repeat=on -object input- linux,id=mouse1,evdev=/dev/input/by- path/pci-0000:00:1a.0-usb-0:1.2.2:1.2-event-mouse -enable-kvm -cpu host -smp 4,sockets=1,cores=4,threads=1 -vga none -display none -m 2g -device virtio-blk-pci,drive=boot,bootindex=1 -drive file=/opt/vm/qcow2/win7.qcow2,format=qcow2,if=none,id=boot This ONLY works if i remove "-enable-kvm" else the windows (7 and 10) boot crashes in bluescreen "stop 0x0000003b" (probably while loading the intel gpu driver (intel graphics 3000). The system is an older ThinkPad T420 with Intel(R) Core(TM) i5-2520M CPU @ 2.50GHz. CMDLINE: BOOT_IMAGE=/vmlinuz-linux root=LABEL=root rw ipv6.disable=0 net.ifnames=0 intel_iommu=on iommu=pt video=LVDS-1:d ** Affects: qemu Importance: Undecided Status: New -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1848244 Title: QEMU KVM IGD SandyBridge Passthrough crash Status in QEMU: New Bug description: I try to passthrough my Intel GPU with this command: qemu-system-x86_64 -nodefaults -parallel none -k de -rtc base=localtime -serial unix:/run/qemu/win7-serial.sock,server,nowait -monitor unix:/run/qemu/win7-monitor.sock,server,nowait -netdev user,id=net0 -device virtio-net-pci,netdev=net0,mac=52:54:00:00:00:07 -device vfio-pci,host=0000:00:02.0,addr=0x2 -device vfio- pci,host=0000:00:1b.0 -device virtio-keyboard-pci -device virtio- mouse-pci -object input-linux,id=kbd1,evdev=/dev/input/by- path/pci-0000:00:1a.0-usb-0:1.2.2:1.2-event-kbd,grab_all=on,repeat=on -object input-linux,id=mouse1,evdev=/dev/input/by- path/pci-0000:00:1a.0-usb-0:1.2.2:1.2-event-mouse -enable-kvm -cpu host -smp 4,sockets=1,cores=4,threads=1 -vga none -display none -m 2g -device virtio-blk-pci,drive=boot,bootindex=1 -drive file=/opt/vm/qcow2/win7.qcow2,format=qcow2,if=none,id=boot This ONLY works if i remove "-enable-kvm" else the windows (7 and 10) boot crashes in bluescreen "stop 0x0000003b" (probably while loading the intel gpu driver (intel graphics 3000). The system is an older ThinkPad T420 with Intel(R) Core(TM) i5-2520M CPU @ 2.50GHz. CMDLINE: BOOT_IMAGE=/vmlinuz-linux root=LABEL=root rw ipv6.disable=0 net.ifnames=0 intel_iommu=on iommu=pt video=LVDS-1:d To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1848244/+subscriptions