From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andrew Cooper <andrew.cooper3@citrix.com>
Subject: [PATCH 2/5] x86/hvm: Switch hvm_allow_set_param() to
 use a whitelist
Date: Wed, 5 Sep 2018 19:12:01 +0100
Message-ID: <1536171124-27053-3-git-send-email-andrew.cooper3@citrix.com>
References: <1536171124-27053-1-git-send-email-andrew.cooper3@citrix.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <xen-devel-bounces@lists.xenproject.org>
In-Reply-To: <1536171124-27053-1-git-send-email-andrew.cooper3@citrix.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: Xen-devel <xen-devel@lists.xen.org>
Cc: Stefano Stabellini <sstabellini@kernel.org>, Wei Liu <wei.liu2@citrix.com>, Andrew Cooper <andrew.cooper3@citrix.com>, Julien Grall <julien.grall@arm.com>, Paul Durrant <paul.durrant@citrix.com>, Jan Beulich <JBeulich@suse.com>, =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= <roger.pau@citrix.com>
List-Id: xen-devel@lists.xenproject.org
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