Hi Fariborz, Can you explore if it can be enabled by explicitly sending metada to that VM. I would suggest passing '<cpu mode='host-model' check='partial'/>' by:
* Set the configuration 'enable.additional.vm.configuration' to true * Set the configuration 'allow.additional.vm.configuration.list.kvm' to 'cpu' * Encode the text to be passed, as: '%3Ccpu%20mode%3D%27host-model%27%20check%3D%27partial%27%2F%3E' * Stop and update the virtual machine, passing the encoded text as the extraconfig parameter: update virtualmachine extraconfig="%3Ccpu%20mode%3D%27host-model%27%20check%3D%27partial%27%2F%3E" id=<VM_UUID> More information about this feature: https://www.shapeblue.com/cloudstack-feature-first-look-enable-sending-of-arbitrary-configuration-data-to-vms/ Regards, Nicolas Vazquez ________________________________ From: Fariborz Navidan <mdvlinqu...@gmail.com> Sent: Sunday, April 18, 2021 7:50 PM To: users@cloudstack.apache.org <users@cloudstack.apache.org> Subject: Re: Enabling nested virtualization Hello, I just added the following lines to agent.properties file: guest.cpu.mode=host-model guest.cpu.features=vmx And stopped/started the VM. The CPU model name inside /proc/cpuinfo on the VM reads exac;y as the CPU model of the physical host but it still does not expose the vmx feature to the VM. The output of command "cat /proc/cpuinfo | grep vmx" is empty. Please advise. Regards. On Sun, Apr 18, 2021 at 6:13 PM Andrija Panic <andrija.pa...@gmail.com> wrote: > I would use imagination and imagine that in order to apply a specific CPU > model (and expose flags) to the needed VMs (ps aux | grep i-2-XXX-VM) - > you will need to stop/start just the wanted VMs. > > Otherwise, after agent.properties change, it is required to restart the > agent, for obvious reasons. > > Best, > > On Sun, 18 Apr 2021 at 13:22, Fariborz Navidan <mdvlinqu...@gmail.com> > wrote: > > > Hi, > > > > Should I stop/start all VMs or just the one I want to be deployed with > VTX > > flag? > > > > Regards. > > > > On Sun, Apr 18, 2021 at 1:49 AM Andrija Panic <andrija.pa...@gmail.com> > > wrote: > > > > > Try with the custom CPU model inside the agents.properties, making sure > > you > > > pass the VTX and other CPU flags. (you can defined CPU model, or use > some > > > CPU model + some more CPU flags (i.e. VTX) > > > Never tested, but is supposed to work that way. > > > > > > Best, > > > > > > On Sat, 17 Apr 2021 at 21:58, Fariborz Navidan <mdvlinqu...@gmail.com> > > > wrote: > > > > > > > Hi All, > > > > > > > > How can I enable nested virtualization on KVM hypervisor so that a > > guest > > > VM > > > > supports nested Intel-VTX? > > > > > > > > TIA > > > > > > > > > > > > > -- > > > > > > Andrija Panić > > > > > > > > -- > > Andrija Panić > nicolas.vazq...@shapeblue.com www.shapeblue.com 3 London Bridge Street, 3rd floor, News Building, London SE1 9SGUK @shapeblue
