[ovirt-users] Nested KVM: what is the correct setup

[ovirt at fateknollogee.com]

But one of the questions already asked to you also throughout the other 
thread was:

what hypervisor are you using?
>> CentOS-7 v 1611
Question << What hypervisor should I be using??

More precisely, as it is clear it is Qemu-KVM, what is the way you start 
your VMs that are the candidates to become hypervisors in oVirt?
>> Not sure I understand this question?

Is it with virt-manager, as described in one of the links you provided, 
or direct virsh commands or what?
>> Virt-Manager

If you are using virt-manager, what did you specify in CPUs --> 
Configuration --> Model ?
>> Great question, my answer = none

Did you choose the checkbox to "copy host cpu configuration"?
>> Great question, my answer = no

On 2017-05-30 09:56, Gianluca Cecchi wrote:
> On Tue, May 30, 2017 at 3:42 PM, <ovirt at fateknollogee.com> wrote:
> 
>> Host: CentOS-7_v1611 (or Fedora 25 -my personal fav)
>> VMs: oVirt nodes v4.1.2
>> 
>> To setup nested KVM, I follow these
>> instructions(https://pve.proxmox.com/wiki/Nested_Virtualization [1])
>> 
>> to check if is enabled do ("kvm_intel" for intel cpu, "kvm_amd" for
>> AMD)
>> -root at proxmox:~# cat /sys/module/kvm_intel/parameters/nested
>> N
>> (N means it's not, to enable ("kvm-intel" for intel, "kvm-amd" for
>> AMD):)
>> 
>> # echo "options kvm-intel nested=Y" > /etc/modprobe.d/kvm-intel.conf
>> and reboot or reload the kernel modul
>> 
>> modprobe -r kvm_intel
>> modprobe kvm_intel
>> check again
>> 
>> -root at proxmox:~# cat /sys/module/kvm_intel/parameters/nested
>> Y
>> 
>> Question: what other settings need to be enabled in the guest vm?
>> See "test nested virt" at
>> 
> https://fedoraproject.org/wiki/How_to_enable_nested_virtualization_in_KVM
>> [2]
>> Do we need this setting in the vm?
>> _______________________________________________
>> Users mailing list
>> Users at ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/users [3]
> 
> But one of the questions already asked to you also throughout the
> other thread was:
> what hypervisor are you using?
> More precisely, as it is clear it is Qemu-KVM, what is the way you
> start your VMs that are the candidates to become hypervisors in oVirt?
> Is it with virt-manager, as described in one of the links you
> provided, or direct virsh commands or what?
> If you are using virt-manager, what did you specify in CPUs -->
> Configuration --> Model ?
> Did you choose the checkbox to "copy host cpu configuration"?
> 
> Gianluca
> 
> Links:
> ------
> [1] https://pve.proxmox.com/wiki/Nested_Virtualization
> [2] 
> https://fedoraproject.org/wiki/How_to_enable_nested_virtualization_in_KVM
> [3] http://lists.ovirt.org/mailman/listinfo/users