Re: [Xen-devel] [PATCH] Allow 32bit PAE guests to change their L3 entries

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 18/2/08 12:32, "Christoph Egger" <Christoph.Egger@xxxxxxx> wrote:

> adjust_guest_l3e() adds (_PAGE_USER|_PAGE_RW) to the entry, and then
> get_page_from_l3e() checks that _PAGE_USER or _PAGE_RW are not present
> for PAE guests.  get_page_from_l3e() will always fail at this point
> for PAE guests.
> 
> Attached patch fixes this. This bug has been uncovered with NetBSD 32bit PAE
> guests.

It breaks the fast update path, and also all mod_lN_entry() functions should
probably be reorganised for consistency. I'll make these changes and apply
it.

 -- Keir



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