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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Live migration with MMIO pages
On 31/10/07 17:31, "Tim Deegan" <Tim.Deegan@xxxxxxxxxxxxx> wrote: > For HVM guests we let that pass if the GFN is known to be acceptable > MMIO (by its p2m type). There needs to be an equivalent get-out here > for PV guests -- iomem_access_permitted(d, mfn_x(gmfn), mfn_x(gmfn)) > should do. We shouldn't really need to do a iomem_access_permitted() check here. If this is a PV guest then the access check was made when the guest pagetable was validated. We can just circumvent these checks entirely for PV guests. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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