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Re: [Xen-devel] Does Xen in 64 bit mode support shadow page table mode?


  • To: Randy Thelen <rthelen@xxxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
  • Date: Tue, 14 Nov 2006 08:20:06 +0000
  • Delivery-date: Tue, 14 Nov 2006 00:20:32 -0800
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AccHxbDU7yBWNHO4EduTwgANk04WTA==
  • Thread-topic: [Xen-devel] Does Xen in 64 bit mode support shadow page table mode?

On 13/11/06 9:12 pm, "Randy Thelen" <rthelen@xxxxxxxxxx> wrote:

> I'm trying to experiment with running a 64 bit paravirtualized guest
> in shadow page table mode, and I'm getting an error while pinning the
> page table.
> 
> The call to pin the pages is in xc_linux_build.c:

If building an auto-translated guest, Xen expects the pin request to specify
a guest pseudo-physical address.

The bug went away when you removed the auto-translation feature from the
guest kernel header because that will have overridden your request for
auto-translate mode (most likely) and you're not running on shadow
pagetables at all.

 -- Keir



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