From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tamas K Lengyel <tamas@tklengyel.com>
Subject: Re: [PATCH v6] x86/hvm: Allow guest_request vm_events
	coming from userspace
Date: Fri, 18 Aug 2017 12:12:39 -0600
Message-ID: <CABfawhniMRL47-xurjDN4ahwwvdb9+Cu9caa+VqGBMzPtL9YFA@mail.gmail.com>
References: <1502970619-25599-1-git-send-email-aisaila@bitdefender.com>
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: <1502970619-25599-1-git-send-email-aisaila@bitdefender.com>
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: Alexandru Isaila <aisaila@bitdefender.com>
Cc: Stefano Stabellini <sstabellini@kernel.org>, "wei.liu2@citrix.com" <wei.liu2@citrix.com>, Razvan Cojocaru <rcojocaru@bitdefender.com>, George Dunlap <George.Dunlap@eu.citrix.com>, Ian Jackson <ian.jackson@eu.citrix.com>, Tim Deegan <tim@xen.org>, Xen-devel <xen-devel@lists.xen.org>, Jan Beulich <jbeulich@suse.com>, Andrew Cooper <andrew.cooper3@citrix.com>
List-Id: xen-devel@lists.xenproject.org
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=