Gentoo Forums
Gentoo Forums
Gentoo Forums
Quick Search: in
how to find out whether hardware kvm is being used?
View unanswered posts
View posts from last 24 hours

 
Reply to topic    Gentoo Forums Forum Index Kernel & Hardware
View previous topic :: View next topic  
Author Message
_______0
Guru
Guru


Joined: 15 Oct 2012
Posts: 521

PostPosted: Wed Jan 09, 2013 12:31 pm    Post subject: how to find out whether hardware kvm is being used? Reply with quote

hi,

I am trying qemu with hardware kvm but I am not sure is being used. There's no iommu irq activity in /proc/interrupts.

Both processes kvm-irqfd-clean and kvm-pit/28618 are idle.

:'-(
Back to top
View user's profile Send private message
audiodef
Watchman
Watchman


Joined: 06 Jul 2005
Posts: 5282

PostPosted: Wed Jan 09, 2013 1:51 pm    Post subject: Reply with quote

You'd have to know whether your hardware supports it and set it in the kernel. I don't remember which item to look for, but I think it shows up in cat /proc/cpuinfo. There's one for Intel and one for AMD.
_________________
Gentoo Studio: http://gentoostudio.org
Facebook: http://www.facebook.com/gentoostudio
G+: https://plus.google.com/113947758237122861689/posts
Pappy's Kernel Seeds: http://kernel-seeds.org
Back to top
View user's profile Send private message
Hu
Watchman
Watchman


Joined: 06 Mar 2007
Posts: 9167

PostPosted: Thu Jan 10, 2013 2:06 am    Post subject: Reply with quote

Intel CPUs with hardware assisted virtualization advertise vmx. AMD CPUs with hardware assisted virtualization advertise svm.
Back to top
View user's profile Send private message
Anon-E-moose
Advocate
Advocate


Joined: 23 May 2008
Posts: 2501
Location: Dallas area

PostPosted: Thu Jan 10, 2013 10:57 am    Post subject: Reply with quote

Load up the virtualization image without loading kvm and see how slow it goes. :^)

World of difference on my machine
_________________
Asus m5a99fx, FX 8320 - amd64-multilib, 3.15.9-zen, glibc-2.17, gcc-4.7.3-r1, eudev
xorg-server-1.16, openbox w/lxpanel, nouveau, oss4(2010)
Back to top
View user's profile Send private message
Display posts from previous:   
Reply to topic    Gentoo Forums Forum Index Kernel & Hardware All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum