From mboxrd@z Thu Jan  1 00:00:00 1970
From: Roger Pau =?utf-8?B?TW9ubsOp?= <roger.pau@citrix.com>
Subject: Re: [PATCH v3 6/7] vpci/msix: carve p2m hole for MSIX
 MMIO regions
Date: Wed, 7 Nov 2018 12:33:40 +0100
Message-ID: <20181107113340.r77nyc4p32tx4zqb@mac.citrite.net>
References: <20181030154123.4218-1-roger.pau@citrix.com>
 <20181030154123.4218-7-roger.pau@citrix.com>
 <5BE078CC02000078001F8374@prv1-mh.provo.novell.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <xen-devel-bounces@lists.xenproject.org>
Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6])
 by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from
 <srs0=kqzb=ns=citrix.com=prvs=842e1f2a3=roger.pau@srs-us1.protection.inumbo.net>)
 id 1gKM5m-0006fq-DY
 for xen-devel@lists.xenproject.org; Wed, 07 Nov 2018 11:33:50 +0000
Content-Disposition: inline
In-Reply-To: <5BE078CC02000078001F8374@prv1-mh.provo.novell.com>
List-Unsubscribe: <https://lists.xenproject.org/mailman/options/xen-devel>,
 <mailto:xen-devel-request@lists.xenproject.org?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xenproject.org>
List-Help: <mailto:xen-devel-request@lists.xenproject.org?subject=help>
List-Subscribe: <https://lists.xenproject.org/mailman/listinfo/xen-devel>,
 <mailto:xen-devel-request@lists.xenproject.org?subject=subscribe>
Errors-To: xen-devel-bounces@lists.xenproject.org
Sender: "Xen-devel" <xen-devel-bounces@lists.xenproject.org>
To: Jan Beulich <JBeulich@suse.com>
Cc: Stefano Stabellini <sstabellini@kernel.org>, Wei Liu <wei.liu2@citrix.com>, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>, George Dunlap <George.Dunlap@eu.citrix.com>, Andrew Cooper <andrew.cooper3@citrix.com>, Ian Jackson <Ian.Jackson@eu.citrix.com>, Tim Deegan <tim@xen.org>, Julien Grall <julien.grall@arm.com>, xen-devel <xen-devel@lists.xenproject.org>
List-Id: xen-devel@lists.xenproject.org
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=