Re: [ovirt-users] Nested KVM on AMD

2015-04-21 Thread Artyom Lukianov 
I enabled nested virtualization via:
1) echo options kvm-amd nested=1  /etc/modprobe.d/kvm-amd.conf
2) modprobe -r kvm-amd
3) modprobe kvm-amd

After it I can see svm flag on vm cpu, but from some reason I still receive the 
same error No virtualization Hardware was detected, when try to deploy vm in 
engine as host.

The same scenario for intel cpu's works fine and I can use nested 
virtualization:
1) echo options kvm-intel nested=1  /etc/modprobe.d/kvm-intel.conf
2) modprobe -r kvm-amd
3) modprobe kvm-amd

So it looks like problem in host deploy with amd cpu maybe Alon Bar-Lev can 
help with it.
Also check your kernel it must be = 3.10

- Original Message -
From: Winfried de Heiden w...@dds.nl
To: users@ovirt.org
Sent: Tuesday, April 21, 2015 10:45:06 AM
Subject: [ovirt-users] Nested KVM on AMD

Hi all, 

For testing purposes I installed vdsm-hook-nestedvt: 

rpm -qi vdsm-hook-nestedvt.noarch 

Name : vdsm-hook-nestedvt Relocations: (not relocatable) 
Version : 4.16.10 Vendor: (none) 
Release : 8.gitc937927.el6 Build Date: ma 12 jan 2015 13:21:31 CET 
Install Date: do 16 apr 2015 15:37:00 CEST Build Host: fc21-vm03.phx.ovirt.org 
Group : Applications/System Source RPM: vdsm-4.16.10-8.gitc937927.el6.src.rpm 
Size : 1612 License: GPLv2+ 
Signature : RSA/SHA1, wo 21 jan 2015 15:32:39 CET, Key ID ab8c4f9dfe590cb7 
URL : http://www.ovirt.org/wiki/Vdsm 
Summary : Nested Virtualization support for VDSM 
Description : 
If the nested virtualization is enabled in your kvm module 
this hook will expose it to the guests. 

Installation looks fine on the oVirt (AMD cpu) KVM-host: 

[root@bigvirt ~]# cat /sys/module/kvm_amd/parameters/nested 
1 

and in oVirt manager 50_nestedvt will show up in Host Hooks. However, trying 
to install oVirt Node Hypervisor 3.5 it will warn No virtualization Hardware 
was detected. Also, the svm flag is not shown on the guest machine. 
Am I missing something? Why is nested kvm not working? 

Winfried 


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Re: [ovirt-users] Nested KVM on AMD

2015-04-21 Thread Winfried de Heiden 

  
  
Hi all,
  
  So, the kernel might be the problem, I'm running Centos6 using a
  kernel 2.6:
  
  [root@bigvirt qemu]# uname -r
  2.6.32-504.12.2.el6.x86_64
  
  It seems I need to upgrade first to Centos7
  
  Winfried 

Op 21-04-15 om 10:06 schreef Artyom
  Lukianov:


  I enabled nested virtualization via:
1) echo "options kvm-amd nested=1"  /etc/modprobe.d/kvm-amd.conf
2) modprobe -r kvm-amd
3) modprobe kvm-amd

After it I can see svm flag on vm cpu, but from some reason I still receive the same error "No virtualization Hardware was detected", when try to deploy vm in engine as host.

The same scenario for intel cpu's works fine and I can use nested virtualization:
1) echo "options kvm-intel nested=1"  /etc/modprobe.d/kvm-intel.conf
2) modprobe -r kvm-amd
3) modprobe kvm-amd

So it looks like problem in host deploy with amd cpu maybe Alon Bar-Lev can help with it.
Also check your kernel it must be = 3.10

- Original Message -
From: "Winfried de Heiden" w...@dds.nl
To: users@ovirt.org
Sent: Tuesday, April 21, 2015 10:45:06 AM
Subject: [ovirt-users] Nested KVM on AMD

Hi all, 

For testing purposes I installed vdsm-hook-nestedvt: 

rpm -qi vdsm-hook-nestedvt.noarch 

Name : vdsm-hook-nestedvt Relocations: (not relocatable) 
Version : 4.16.10 Vendor: (none) 
Release : 8.gitc937927.el6 Build Date: ma 12 jan 2015 13:21:31 CET 
Install Date: do 16 apr 2015 15:37:00 CEST Build Host: fc21-vm03.phx.ovirt.org 
Group : Applications/System Source RPM: vdsm-4.16.10-8.gitc937927.el6.src.rpm 
Size : 1612 License: GPLv2+ 
Signature : RSA/SHA1, wo 21 jan 2015 15:32:39 CET, Key ID ab8c4f9dfe590cb7 
URL : http://www.ovirt.org/wiki/Vdsm 
Summary : Nested Virtualization support for VDSM 
Description : 
If the nested virtualization is enabled in your kvm module 
this hook will expose it to the guests. 

Installation looks fine on the oVirt (AMD cpu) KVM-host: 

[root@bigvirt ~]# cat /sys/module/kvm_amd/parameters/nested 
1 

and in oVirt manager "50_nestedvt" will show up in Host Hooks. However, trying to install "oVirt Node Hypervisor 3.5" it will warn "No virtualization Hardware was detected". Also, the svm flag is not shown on the guest machine. 
Am I missing something? Why is nested kvm not working? 

Winfried 


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Users@ovirt.org
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