Hi
When launch qemu throught libvirt (also builded from GIT):
nov 18 16:57:52 sL1pKn07 libvirtd[1370]: Domain id=2 name='windoze'
uuid=167cfa49-c88f-46df-a6bf-3127d5bf4d38 is tainted: custom-argv
nov 18 16:57:52 sL1pKn07 libvirtd[1370]: Domain id=2 name='windoze'
uuid=167cfa49-c88f-46df-a6bf-3127d5bf4d38 is tainted: host-cpu
nov 18 16:58:03 sL1pKn07 libvirtd[1370]: internal error: unknown CPU
feature __kvm_hv_vendor_id
nov 18 16:58:11 sL1pKn07 libvirtd[1370]: internal error: End of file
from qemu monitor
PID: 20731 (qemu-system-x86)
UID: 1000 (sl1pkn07)
GID: 78 (kvm)
Signal: 6 (ABRT)
Timestamp: Fri 2016-11-18 16:58:11 CET (2h 30min ago)
Command Line: /usr/bin/qemu-system-x86_64 -name
guest=windoze,debug-threads=on -S -object
secret,id=masterKey0,format=raw,file=/var/lib/libvirt/qemu/domain-2-windoze/master-key.aes
-machine pc-i440fx-2.7,accel=kvm,usb=off,dump-guest-core=off -cpu
host,hv_time,hv_vendor_id=SomeString,kvm=off -bios
/usr/share/edk2.git/ovmf-x64/OVMF_CODE-pure-efi.fd -m 12288 -realtime
mlock=off -smp 6,sockets=1,cores=6,threads=1 -uuid
167cfa49-c88f-46df-a6bf-3127d5bf4d38 -display none -no-user-config
-nodefaults -chardev
socket,id=charmonitor,path=/var/lib/libvirt/qemu/domain-2-windoze/monitor.sock,server,nowait
-mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime
-no-shutdown -boot menu=off,strict=on -device
ahci,id=sata0,bus=pci.0,addr=0x4 -drive
file=/dev/disk/by-id/ata-KINGSTON_SV300S37A240G_50026B775B0399A7,format=raw,if=none,id=drive-virtio-disk0
-device
virtio-blk-pci,scsi=off,bus=pci.0,addr=0x6,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1
-netdev tap,fd=25,id=hostnet0,vhost=on,vhostfd=27 -device
virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:e4:b0:b4,bus=pci.0,addr=0x9
-device vfio-pci,host=07:00.0,id=hostdev0,bus=pci.0,addr=0x7 -device
vfio-pci,host=07:00.1,id=hostdev1,bus=pci.0,addr=0x3 -device
vfio-pci,host=14:00.0,id=hostdev2,bus=pci.0,addr=0x5 -device
virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x8 -machine
max-ram-below-4g=1G -msg timestamp=on
Executable: /usr/bin/qemu-system-x86_64
Control Group: /
Slice: -.slice
Boot ID: 096f631947d640c19212ef9c5cb9a1e6
Machine ID: c20ee0c57658685bfedf50384b0e3ec0
Hostname: sL1pKn07
Storage: none
Message: Process 20731 (qemu-system-x86) of user 1000 dumped core.
the last commit builded and i don't have problems is
qemu: b49e452
libvirt: 77d24de
the XML:
<!--
WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE
OVERWRITTEN AND LOST. Changes to this xml configuration should be made using:
virsh edit windoze
or other application using the libvirt API.
-->
<domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'>
<name>windoze</name>
<uuid>167cfa49-c88f-46df-a6bf-3127d5bf4d38</uuid>
<memory unit='KiB'>12582912</memory>
<currentMemory unit='KiB'>12582912</currentMemory>
<vcpu placement='auto'>6</vcpu>
<numatune>
<memory mode='strict' placement='auto'/>
</numatune>
<sysinfo type='smbios'>
<bios>
<entry name='vendor'>GENERIC</entry>
<entry name='version'>GENERIC</entry>
<entry name='date'>01/01/2014</entry>
<entry name='release'>0.91</entry>
</bios>
<system>
<entry name='manufacturer'>GENERIC</entry>
<entry name='product'>GENERIC</entry>
<entry name='version'>GENERIC</entry>
<entry name='serial'>1</entry>
<entry name='uuid'>167cfa49-c88f-46df-a6bf-3127d5bf4d38</entry>
<entry name='sku'>GENERIC</entry>
<entry name='family'>GENERIC</entry>
</system>
</sysinfo>
<os>
<type arch='x86_64' machine='pc-i440fx-2.7'>hvm</type>
<loader
type='rom'>/usr/share/edk2.git/ovmf-x64/OVMF_CODE-pure-efi.fd</loader>
<nvram
template='/usr/share/edk2.git/ovmf-x64/OVMF_VARS-pure-efi.fd'>/var/lib/libvirt/qemu/nvram/windoze_VARS.fd</nvram>
<bootmenu enable='no'/>
</os>
<features>
<acpi/>
<apic/>
<pae/>
<hyperv>
<vendor_id state='on' value='SomeString'/>
</hyperv>
<kvm>
<hidden state='on'/>
</kvm>
</features>
<cpu mode='host-passthrough'>
<topology sockets='1' cores='6' threads='1'/>
</cpu>
<clock offset='localtime'>
<timer name='hypervclock' present='yes'/>
</clock>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<devices>
<emulator>/usr/bin/qemu-system-x86_64</emulator>
<disk type='block' device='disk'>
<driver name='qemu' type='raw'/>
<source dev='/dev/disk/by-id/ata-KINGSTON_SV300S37A240G_50026B775B0399A7'/>
<target dev='vda' bus='virtio'/>
<boot order='1'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
</disk>
<controller type='usb' index='0' model='none'/>
<controller type='sata' index='0'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
</controller>
<controller type='pci' index='0' model='pci-root'/>
<interface type='bridge'>
<mac address='52:54:00:e4:b0:b4'/>
<source bridge='br0'/>
<model type='virtio'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x09' function='0x0'/>
</interface>
<input type='keyboard' bus='ps2'/>
<input type='mouse' bus='ps2'/>
<hostdev mode='subsystem' type='pci' managed='no'>
<source>
<address domain='0x0000' bus='0x07' slot='0x00' function='0x0'/>
</source>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
</hostdev>
<hostdev mode='subsystem' type='pci' managed='no'>
<source>
<address domain='0x0000' bus='0x07' slot='0x00' function='0x1'/>
</source>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</hostdev>
<hostdev mode='subsystem' type='pci' managed='yes'>
<source>
<address domain='0x0000' bus='0x14' slot='0x00' function='0x0'/>
</source>
<address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
</hostdev>
<memballoon model='virtio'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>
</memballoon>
</devices>
<qemu:commandline>
<qemu:arg value='-machine'/>
<qemu:arg value='max-ram-below-4g=1G'/>
</qemu:commandline>
</domain>
greetings
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