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

["Kraska, Joe A \(US SSA\)" <joe.kraska@xxxxxxxxxxxxxx>]

This seems more like a developer question. You might try the xen-devel
list. Anyway, I believe that all hardware instructions on any x86 cpu
are supposed to be executable by arbitrary assembly. Those that cannot
be properly kernel trapped may experience performance loss, but I
think that's SUPPOSED to be the only limitation.

Would be nice if someone with exact knowledge chipped in, of course.

Joe.

> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-users-
> bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Molle Bestefich
> Sent: Monday, March 12, 2007 12:36 PM
> To: xen-users@xxxxxxxxxxxxxxxxxxx; virtualization@xxxxxxxxxxxxxx
> Subject: [Xen-users] Virtualization + CPU w/crypto acceleration
instructions
> 
> 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?
> 
> (Wasn't able to find this info in any of ~400 Google hits, so I'm
> shooting it out a bit to let as many as possible benefit from the
> answer.)
> 
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