Re: [Xen-devel] Re: x86_64 SMP support (status update)

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 27 Jun 2005, at 22:55, Keir Fraser wrote:

> Xen makes a shadow mapping of the per-vcpu gdt in its own address 
> space. This, coupled with Xen reserving the last 2 pages of GDT 
> entries for itself, requires every GDT to start on a page boundary. 
> So, even though per-cpu gdts are not page-aligned they must be at 
> least one page in size.
Last sentence should be "per-cpu gdts have to be page-aligned, so each 
one burns a page". :-)
 -- Keir


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