Re: [Xen-devel] understanding __linear_l2_table and friends

[David Hopwood <david.nospam.hopwood@xxxxxxxxxxxxxxxx>]

Gerd Knorr wrote:
> On Sat, Apr 23, 2005 at 05:28:26PM +0200, Andi Kleen wrote:
>
> > If you bought them in the last year you very likely already got them 64bit 
> > capable.
> That the machines are 64bit capable doesn't mean that people will
> actually run 64bit software on them.  Note that the very good backward
> compatibility of x86_64 machines to 32bit software is one of the key
> features leading to the success of the processors (lesson learned from
> ia64 ;)
What does that have to do with PAE support in Xen? x86_64 machines
do not support PAE, and do not need it to run 32-bit applications.

(A good decision by AMD, IMHO. The complexity of supporting PAE along with
all the other mode combinations would have been ridiculous.)

--
David Hopwood <david.nospam.hopwood@xxxxxxxxxxxxxxxx>


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