Re: Is there any accurate way to check if Qemu is using KVMmodules?

A non-programmatic way is to look at the SDL banner window (assuming you
are using SDL and not VNC or gfx disabled).  When you are using KVM it
will say "QEMU/KVM".

(WARNING: hack alert) A programmatic way would be to check the /proc
filesystem for the pid of the QEMU process for open references
to /dev/kvm.

There may be other ways, but that is all I could think of off the top of
my head.

-Greg

On Tue, 2007-06-19 at 22:12 +0800, You, Yongkang wrote:
> Hi all,
> 
> I am a newbie for KVM testing. 
> Now I meet a problem in testing, that it seems there isn't a simple and 
> effective way to judge if a Qemu is using KVM modules or doing pure Qemu 
> operations. 
> 
> Checking how many reference of kvm.ko by lsmod is a way, but would meet 
> trouble when creating multi KVM guest at the same time. And can not locate 
> which one is using KVM modules. 
> 
> I also checked /sys file system, but didn't get any reference. Is it possible 
> to expose some useful information about KVM/Qemu alive status and cpu 
> assignment/usage information in the user space. This would be a good friend 
> to customer and tester. :)
> 
> Best Regards,
> Yongkang (Kangkang) 永康
> 
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