On Tue, 14 Dec 2010, Frank Mehnert wrote:
> On Tuesday 14 December 2010, Robert P. J. Day wrote:
> > i'm reading the 4.0.0 beta user manual, "3.1.2 64-bit guests", and
> > it states in point 1 that, in order to have a 64-bit guest OS, you
> > *need* a 64-bit processor with HW virtualization support.
> >
> > the last part of point 3, however, claims that on 64-bit hosts,
> > 64-bit guest support is always enabled. but what if you have a 64-bit
> > system without HW virt support? then these two claims would seem to
> > be slightly contradictory.
>
> The last sentence is indeed not 100% clear. You definitely need VT-x
> or AMD-V for 64-bit guest support. This is just a restriction of the
> implementation of the VirtualBox VMM. Of course it would be possible
> to make 64-bit guests work on non-VT-x/AMD-V hardware but we saved
> the effort as the most processors have support for this hardware
> extension in these days.
ok, i'll add that to my list of chapter 3 observations, and someone
can decide whether they want to do anything with it. thanks muchly.
rday
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Robert P. J. Day Waterloo, Ontario, CANADA
http://crashcourse.ca
Twitter: http://twitter.com/rpjday
LinkedIn: http://ca.linkedin.com/in/rpjday
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