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[Xen-users] Re: Virtualization + CPU w/crypto acceleration instructions

from [Jeremy Fitzhardinge] [Permanent Link][Original]
To: Molle Bestefich <molle.bestefich@xxxxxxxxx>
Subject: [Xen-users] Re: Virtualization + CPU w/crypto acceleration instructions
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date: Mon, 12 Mar 2007 12:44:45 -0700
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Molle Bestefich wrote:
> In a virtualized environment running Xen or VMware, can the guest
> operating systems utilize hardware crypto acceleration such as the
> "PadLock" AES acceleration built into VIA CPUs?
>   

If they're unprivileged instructions, then they should just work.  If
its done via MSRs or some other ring0 mechanism, it might be more tricky.

    J

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