Virtualization without extensions?

Patton Echols p.echols at comcast.net
Thu Mar 17 15:57:20 UTC 2011


On 03/16/2011 06:35 PM, Kent Borg wrote:
> Patton Echols wrote:
>> My server does not. What the guide does not say is how well or if 
>> virtualization will work without hardware extensions. Does anyone 
>> have any experience with this? 
>
> Without kvm support you would run plain qemu (the basis for kvm) as 
> your emulator with kqemu as a kernel module that makes x86 
> instructions run directly on your x86 (most of the time) and not have 
> to be emulated.
>
> In have not tried qemu on recent versions of Ubuntu, but I have used 
> it on earlier versions. It works.
>

Thanks.  Given another keyword, I was able to find this page:
https://help.ubuntu.com/community/Kqemu

My server is still running 9.10, so it looks like I could build rebuild 
qemu from source and enable kqemu, but that defeats my purpose.   There 
is a comment at the top of that page that suggests that qemu would run 
without either kvm or kqemu -- just that it would run poorly.  Since I 
am just interested in testing some web apps, poor performance might not 
be much of an issue.   Any thought on that?

I suppose my other alternative would be to do my testing in a VM under 
VirtualBox on my desktop.

--PE





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