[vfio-users] kvm=off - hypervisor guest status = true

[Lars Heer]

Hi,

I'm currently tryin to find out why I'm running into nidia gtx 1050 ti - 
windows 10 - driver installation issues.


I've found out that the machine still shows that it is running in 
virtual guest:

root at debian:~# cpuid  | grep -i hypervisor
       hypervisor guest status                 = true
    hypervisor_id = "@  @      "


Setting of vendorid seem to work. It was something with "KVMKVM..." before.

I have not clue why this happens...


Maybe someone has seen such behaviour before.

I'm currently using:

     debian 9

     4.9.0-2-amd64

     qemu 2.8+dfsg-4+b2

Passthrough works in geral but only has the windows driver issue. I 
guess that the "hypervisor guest status" value is the flag which is the 
cause for it.

Command line looks like this (I started a linux machine inside to get 
the cpuid output):

root at wald:/var/lib/libvirt/images# ps -lef | grep win10
6 S libvirt+ 21208     1  0  80   0 - 2591638 SyS_pp 11:49 ? 00:00:27 
/usr/bin/qemu-system-x86_64 -name 
guest=win10-pro1-clone,debug-threads=on -S -object 
secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-36-win10-pro1-clone/master-key.aes 
-machine pc-i440fx-2.8,accel=kvm,usb=off,vmport=off,dump-guest-core=off 
-cpu host,hv_vendor_id=whatever,kvm=off -drive 
file=/var/lib/libvirt/bios/win10-pro-1.OVMF_CODE-pure-efi.fd,if=pflash,format=raw,unit=0 
-drive 
file=/var/lib/libvirt/nvram/win10-pro-1.VARS.fd,if=pflash,format=raw,unit=1 
-m 8192 -realtime mlock=off -smp 3,sockets=3,cores=1,threads=1 -uuid 
c6874053-9fa1-4ae1-afee-eb860b5e44b2 -no-user-config -nodefaults 
-chardev 
socket,id=charmonitor,path=/var/lib/libvirt/qemu/domain-36-win10-pro1-clone/monitor.sock,server,nowait 
-mon chardev=charmonitor,id=monitor,mode=control -rtc 
base=localtime,driftfix=slew -global kvm-pit.lost_tick_policy=delay 
-no-hpet -no-shutdown -global PIIX4_PM.disable_s3=1 -global 
PIIX4_PM.disable_s4=1 -boot strict=on -device 
pci-bridge,chassis_nr=1,id=pci.1,bus=pci.0,addr=0x4 -device 
ich9-usb-ehci1,id=usb,bus=pci.0,addr=0x5.0x7 -device 
ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pci.0,multifunction=on,addr=0x5 
-device 
ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x5.0x1 
-device 
ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x5.0x2 
-device ahci,id=sata0,bus=pci.0,addr=0x8 -device 
virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x6 -drive 
file=/var/lib/libvirt/images/win10-pro1-clone.qcow2,format=qcow2,if=none,id=drive-virtio-disk0,cache=writethrough 
-device 
virtio-blk-pci,scsi=off,bus=pci.0,addr=0x9,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 
-drive if=none,id=drive-ide0-0-0,readonly=on -device 
ide-cd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=2 
-drive 
file=/var/lib/libvirt/iso/gtx1050ti.asus.v1361.iso,format=raw,if=none,id=drive-ide0-0-1,readonly=on 
-device ide-cd,bus=ide.0,unit=1,drive=drive-ide0-0-1,id=ide0-0-1 -netdev 
tap,fd=36,id=hostnet0 -device 
e1000,netdev=hostnet0,id=net0,mac=52:54:00:9f:4a:84,bus=pci.0,addr=0x3 
-chardev pty,id=charserial0 -device 
isa-serial,chardev=charserial0,id=serial0 -chardev 
spicevmc,id=charchannel0,name=vdagent -device 
virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.spice.0 
-device usb-tablet,id=input0,bus=usb.0,port=1 -spice 
port=5905,tls-port=5906,addr=0.0.0.0,disable-ticketing,x509-dir=/etc/pki/libvirt-spice,seamless-migration=on 
-device 
qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,vram64_size_mb=0,vgamem_mb=16,max_outputs=1,bus=pci.0,addr=0xc 
-device intel-hda,id=sound0,bus=pci.1,addr=0x1 -device 
hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 -chardev 
spicevmc,id=charredir0,name=usbredir -device 
usb-redir,chardev=charredir0,id=redir0,bus=usb.0,port=2 -chardev 
spicevmc,id=charredir1,name=usbredir -device 
usb-redir,chardev=charredir1,id=redir1,bus=usb.0,port=3 -device 
vfio-pci,host=01:00.0,id=hostdev0,bus=pci.0,addr=0x2,romfile=/var/lib/libvirt/rom/evga_gtx1050.dump,multifunction=on,x-vga=on 
-device vfio-pci,host=01:00.1,id=hostdev1,bus=pci.0,addr=0xb -device 
virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x7 -msg timestamp=on -vga 
none


Thanks in advance... Maybe it is something for the qemu mailing list...?

Lars