RE: [Xen-users] HVM or paravirtualized'

[Zary Matej <matej.zary@xxxxxxxxx>]

>
>________________________________________
>From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx 
>[xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Mauro [mrsanna1@xxxxxxxxx]
>Sent: 22 July 2011 14:15
>To: xen-users
>Subject: [Xen-users] HVM or paravirtualized'
>
>Hi, I use xen on debian linux systems of several years in some HP
>ProLiant servers.
>Processors of these machines are of last generation and have support
>for virtualization.
>I could then use xen with hvm mode rather than paravirtualization mode?
>I benefit?
>
>p.s. sorry for my bad english.
>

Hi,

HVM is needed for non-linux virtual machines (Windows, Solaris..). You can run 
Linux as HVM virtual machine too, but the I/O performance will be significantly 
reduced. However, it's possible to use PVonHVM drivers for the I/O devices and 
get better performance (my guess is it should be more or less on par wirh PVM). 
If you are used to PVM (paravirtualized virtual machines) and there's no 
problem with PVM drawbacks,  I would say that there's no need to experiment 
with HVM Linux machines.

Regards

Matej
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