https://bugzilla.kernel.org/show_bug.cgi?id=118121 Bug ID: 118121 Summary: KVM - unhandled rdmsr - VFIO+Radeon R9 380, Win10 Guest Product: Virtualization Version: unspecified Kernel Version: 4.5.x and below Hardware: Intel OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: kvm Assignee: virtualization_kvm@xxxxxxxxxxxxxxxxxxxx Reporter: mparnell@xxxxxxxxx Regression: No This only happens when attempting to run Just Cause 3, one of the most buggy games currently known to exist... Host CPU : 4790K Devil's Canyon VFIO GPU: Radeon R9 380 Guest OS: Win10 64 Other than the attached dmesg selection and the attached command I use to run the VM, I have seen no real issues so far as usage goes, the machine feels as good as bare metal. I start the machine using: qemu-system-x86_64 -enable-kvm -m 16384 -cpu host,kvm=off,hv_relaxed,hv_spinlocks=0x1fff,hv_vapic,hv_time \ -serial none \ -parallel none \ -nodefaults \ -nodefconfig \ -name Windows \ -soundhw hda \ -rtc base=localtime \ -vga none \ -net nic,macaddr=52:54:00:00:00:01,model=virtio,name=net0 \ -device vfio-pci,host=0000:01:00.0 \ -usb -usbdevice host:1532:0037 \ -usb -usbdevice host:2516:001a \ -net user \ -device virtio-scsi-pci,id=scsi \ -drive if=pflash,format=raw,readonly,file=/usr/share/edk2.git/ovmf-x64/OVMF_CODE-pure-efi.fd \ -drive if=pflash,format=raw,file=/tmp/my_vars.fd \ -drive file=/home/ili/vm/windoze.img,id=disk,format=raw,if=none,cache=none,if=virtio \ -drive file=/media/ili/vms/games.img,id=disk2,format=raw,if=none,cache=none,if=virtio (Off topic: The only drawback is the reset issue I think many of us suffer, as I have to reboot the host machine if I power off the guest and want to start it back up at a later time. The interesting thing there is that I don't run into this with q35, but with my hardware configuration Windows doesn't play nice using Q35, it seems. I could just be missing a configuration setting there though.) -- You are receiving this mail because: You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html