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Re: [Xen-devel] [v4][PATCH 02/19] xen/x86/p2m: introduce set_identity_p2m_entry

On Tue, Jun 23, 2015 at 10:57 AM, Tiejun Chen <tiejun.chen@xxxxxxxxx> wrote:
> We will create this sort of identity mapping as follows:
> If the gfn space is unoccupied, we just set the mapping. If space
> is already occupied by desired identity mapping, do nothing.
> Otherwise, failure is returned.
> And we also add a returning value to guest_physmap_remove_page()
> then make that as a better helper to clear such a p2m entry.
> CC: Tim Deegan <tim@xxxxxxx>
> CC: Keir Fraser <keir@xxxxxxx>
> CC: Jan Beulich <jbeulich@xxxxxxxx>
> CC: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> Signed-off-by: Tiejun Chen <tiejun.chen@xxxxxxxxx>
> Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>


Acked-by: George Dunlap <george.dunlap@xxxxxxxxxxxxx>

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