Re: [Xen-devel] Meaning of PG_foreign

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 6/10/06 10:54, "Jacob Gorm Hansen" <jacobg@xxxxxxx> wrote:

> can I count on all pages in a domU that are changed by Xen, backend
> drivers, or writable pagetable magic, being marked as PG_foreign?

I'm not sure what you mean by 'changed'. But I expect you misunderstand the
meaning of PG_foreign anyway. What it means is 'foreign' from the
point-of-view of Linux's buddy allocator -- i.e., it is a page that actually
comes from a different allocator, which is wanting to hook off of
free_pages(). It doesn't (necessarily) mean that the page is actually from a
foreign virtual machine.

 -- Keir



_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel