NB, in future please don't CC all possible mailing lists at once. Just pick the most appropriate mailing list for your question. I've dropped libvirt-list & libvirt-announce from the CC, since this is a question most suited for libvirt-users. On Thu, Jan 05, 2017 at 11:44:29AM +0800, 放牛班的春天 wrote: > How to configure libvirt, so qemu-kvm support nested virtualization, virtual machine installed operating system is windows_7_ultimate_sp1_x64_dvd_618537.iso, configure libvirt xml file is as follows: > > <cpu mode='custom' match='exact'> > <model fallback='allow'>core2duo</model> > <feature policy='require' name='vmx'/> > </cpu> > > > or > > <cpu mode='host-model'> > <model fallback='allow'/> > </cpu> > > or > <cpu mode='host-passthrough'> > <topology sockets='2' cores='2' threads='2'/> > </cpu> Yes, that's the key guest configuration step - exposing the 'vmx' feature to the guest. In addition to that though, you need to make sure the kvm-intel kernel module in your host has the "nested=1" parameter set. eg in /etc/modprobe.d/kvm.conf you want options kvm_intel nested=1 If loaded correctly you should see # cat /sys/module/kvm_intel/parameters/nested Y if it says "N", then nested VMX will be disabled. Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://entangle-photo.org -o- http://search.cpan.org/~danberr/ :| _______________________________________________ libvirt-users mailing list libvirt-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvirt-users
