From mboxrd@z Thu Jan  1 00:00:00 1970
Return-path: <kexec-bounces+dwmw2=infradead.org@lists.infradead.org>
Received: from mx3-rdu2.redhat.com ([66.187.233.73] helo=mx1.redhat.com)
 by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux))
 id 1fVsMk-000706-Tf
 for kexec@lists.infradead.org; Thu, 21 Jun 2018 05:42:44 +0000
Subject: Re: [PATCH 3/4 V3] Remap the device table of IOMMU in encrypted
 manner for kdump
References: <20180616082714.32035-1-lijiang@redhat.com>
 <20180616082714.32035-4-lijiang@redhat.com>
 <60c6f00e-0eb3-d39c-6a1e-8a1dc1e095af@amd.com>
From: lijiang <lijiang@redhat.com>
Message-ID: <c591dec2-2135-2e96-8ace-87cbf4b055bf@redhat.com>
Date: Thu, 21 Jun 2018 13:42:24 +0800
MIME-Version: 1.0
In-Reply-To: <60c6f00e-0eb3-d39c-6a1e-8a1dc1e095af@amd.com>
Content-Language: en-US
List-Id: <kexec.lists.infradead.org>
List-Unsubscribe: <http://lists.infradead.org/mailman/options/kexec>,
 <mailto:kexec-request@lists.infradead.org?subject=unsubscribe>
List-Archive: <http://lists.infradead.org/pipermail/kexec/>
List-Post: <mailto:kexec@lists.infradead.org>
List-Help: <mailto:kexec-request@lists.infradead.org?subject=help>
List-Subscribe: <http://lists.infradead.org/mailman/listinfo/kexec>,
 <mailto:kexec-request@lists.infradead.org?subject=subscribe>
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Sender: "kexec" <kexec-bounces@lists.infradead.org>
Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org
To: Tom Lendacky <thomas.lendacky@amd.com>, linux-kernel@vger.kernel.org
Cc: dyoung@redhat.com, iommu@lists.linux-foundation.org, kexec@lists.infradead.org
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