From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tim Deegan <tim@xen.org>
Subject: Re: [v4][PATCH 02/19] xen/x86/p2m: introduce
	set_identity_p2m_entry
Date: Thu, 25 Jun 2015 10:59:45 +0100
Message-ID: <20150625095945.GC47924@deinos.phlegethon.org>
References: <1435053450-25131-1-git-send-email-tiejun.chen@intel.com>
	<1435053450-25131-3-git-send-email-tiejun.chen@intel.com>
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To: Tiejun Chen <tiejun.chen@intel.com>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>, Keir Fraser <keir@xen.org>, Jan Beulich <jbeulich@suse.com>, xen-devel@lists.xen.org
List-Id: xen-devel@lists.xenproject.org

At 17:57 +0800 on 23 Jun (1435082233), Tiejun Chen 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@xen.org>
> CC: Keir Fraser <keir@xen.org>
> CC: Jan Beulich <jbeulich@suse.com>
> CC: Andrew Cooper <andrew.cooper3@citrix.com>
> Signed-off-by: Tiejun Chen <tiejun.chen@intel.com>
> Reviewed-by: Kevin Tian <kevin.tian@intel.com>

Reviewed-by: Tim Deegan <tim@xen.org>