Re: [Xen-devel] [PATCH] AMD IOMMU: Defer IO pagetable construction until device assignment

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

On 2/4/08 16:25, "Wei Wang2" <wei.wang2@xxxxxxx> wrote:

>> I think you should leave p2m.c as it is, and then synchronise on creation of
>> the iommu tables from within amd_iommu_map_page(). You already have a
>> mapping_lock in there which might do the trick.
> I will update it. Maybe I need a new flag to indicate that I/O page tables has
> been synchronised..

Set and checked under the mapping lock. Yes, that would indeed work.

 -- Keir



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