From mboxrd@z Thu Jan  1 00:00:00 1970
From: Zhongze Liu <blackskygg@gmail.com>
Subject: Re: [PATCH v3 2/7] xsm: flask: change the dummy xsm
 policy and flask hook for map_gmfn_foregin
Date: Sun, 22 Oct 2017 19:21:17 +0800
Message-ID: <CAHrd_jpqOPJyoKU2RaxJOW82W_9h_gwfcPkfp_Jhzi7_s=w7UA@mail.gmail.com>
References: <20171019023635.19812-1-blackskygg@gmail.com>
 <20171019023635.19812-3-blackskygg@gmail.com>
 <59E8AF7A020000780018815A@prv-mh.provo.novell.com>
 <f3e12d04-ffcb-fe4a-4666-d147b292d141@tycho.nsa.gov>
 <59E9B06902000078001886FF@prv-mh.provo.novell.com>
 <9bb5ed9a-01e2-7b22-3483-29a31a667260@tycho.nsa.gov>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <xen-devel-bounces@lists.xen.org>
In-Reply-To: <9bb5ed9a-01e2-7b22-3483-29a31a667260@tycho.nsa.gov>
List-Unsubscribe: <https://lists.xen.org/cgi-bin/mailman/options/xen-devel>,
 <mailto:xen-devel-request@lists.xen.org?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xen.org>
List-Help: <mailto:xen-devel-request@lists.xen.org?subject=help>
List-Subscribe: <https://lists.xen.org/cgi-bin/mailman/listinfo/xen-devel>,
 <mailto:xen-devel-request@lists.xen.org?subject=subscribe>
Errors-To: xen-devel-bounces@lists.xen.org
Sender: "Xen-devel" <xen-devel-bounces@lists.xen.org>
To: Daniel De Graaf <dgdegra@tycho.nsa.gov>, Jan Beulich <JBeulich@suse.com>
Cc: Ian Jackson <ian.jackson@eu.citrix.com>, Julien Grall <julien.grall@arm.com>, Stefano Stabellini <sstabellini@kernel.org>, Wei Liu <wei.liu2@citrix.com>, xen-devel@lists.xen.org
List-Id: xen-devel@lists.xenproject.org
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