EDV Dave

OK it worked. Just added your Lines within the "domain" tag: </hostdev> <memballoon model='none'/> </devices> <seclabel type='dynamic' model='dac' relabel='yes'> <label>+0:+100</label> <imagelabel>+0:+100</imagelabel> </seclabel> <qemu:commandline> <qemu:arg value='-cpu'/> <qemu:arg value='Penryn,vendor=GenuineIntel,kvm=on,+invtsc,vmware-cpuid-freq=on,+vmx'/> </qemu:commandline> </domain> Performance is way better now and nested VMS do start with QEMU Penryn now, but still not performing as well as when i just tick QMEMU CPU without speccifying Penryn type. Are there other choices? best regards

where can i find the right xml file guys? my vm xml only got this short cpu section: you probably edit some qemu config xml right? not the vm itself

Hello guys, is it possible to activate VMX for Qemu in Unraid 6.7.2.? Iam using Passtrough-Mode with the "kvm_intel nested=1" in Autostart to run MS Hyper-V 2016 on my Unraid Setup. Inside the HyperV 2016 Server i can use nested VMs without hassle when HyperV option enabled and pc-i440fx . But the performance is absolutely horrible and everthing is lagging behind. When i switch do QMEU64 / KVM CPU mode the Performance of my MS Hyper Server increases drastically. But the Intel VD-X Features are not exposed to it anymore, hence i cannot run nested VMs. How can i expose VMX to my HyperV Host running on QEMU CPU Mode. I Found the following: https://ahelpme.com/howto/qemu-full-virtualization-cpu-emulations-enable-disable-cpu-flags-instruction-sets/ https://stackoverflow.com/questions/39154850/how-do-i-emulate-the-vmx-feature-with-qemu https://stackoverflow.com/questions/43942033/nested-virtualization-with-kvm-enable-kvm-in-qemu-in-nested-virtualization?rq=1 Somehow it should be possible to make the CPUS Features visible to the VM. The XML commands above, mentioned by Siwat, do not work anymore. Error: XML error: Non-empty feature list specified without CPU model Cpu Mode "custom" does not exist anymore. But there is a mode called "Host-Model". How can i use QEMU emulated CPU Cores for my MS HyperV Server and passtrough the VMX Features to its VMS for nested Virtualization. best regards lukas

Hello guys, how to activate VMX for Qemu in Unraid 6.7.2.? Iam using Passtrough-Mode with the "kvm_intel nested=1" in Autostart to run MS Hyper-V 2016 on my Unraid Setup. Inside the HyperV 2016 Server i can use nested VMs without hassle when HyperV option enabled and pc-i440fx . But the performance is absolutely horrible and everthing is lagging behind. When i switch do QMEU64 / KVM CPU mode the Performance of my MS Hyper Server increases drastically. But the Intel VD-X Features are not exposed to it anymore, hence i cannot run nested VMs. How can i expose VMX to my HyperV Host running on QEMU CPU Mode. I Found the following: https://ahelpme.com/howto/qemu-full-virtualization-cpu-emulations-enable-disable-cpu-flags-instruction-sets/ https://stackoverflow.com/questions/39154850/how-do-i-emulate-the-vmx-feature-with-qemu https://stackoverflow.com/questions/43942033/nested-virtualization-with-kvm-enable-kvm-in-qemu-in-nested-virtualization?rq=1 Somehow it should be possible to make the CPUS Features visible to the VM. The XML commands above, mentioned by Siwat, do not work anymore. Error: XML error: Non-empty feature list specified without CPU model Cpu Mode "custom" does not exist anymore. But there is a mode called "Host-Model". How can i use QEMU emulated CPU Cores for my MS HyperV Server and passtrough the VMX Features to its VMS for nested Virtualization. best regards lukas