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Re: [Xen-devel] [PATCH] Allow 32bit PAE guests to change their L3 entrie
| To: | Christoph Egger <Christoph.Egger@xxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH] Allow 32bit PAE guests to change their L3 entries |
| From: | Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
| Date: | Mon, 18 Feb 2008 13:44:32 +0000 |
| Delivery-date: | Mon, 18 Feb 2008 05:45:12 -0800 |
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| In-reply-to: | <200802181332.51143.Christoph.Egger@xxxxxxx> |
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| Thread-index: | AchyNGPmoqLDmt4nEdykwQAX8io7RQ== |
| Thread-topic: | [Xen-devel] [PATCH] Allow 32bit PAE guests to change their L3 entries |
| User-agent: | Microsoft-Entourage/11.3.6.070618 |
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 |
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