From mboxrd@z Thu Jan  1 00:00:00 1970
From: Joshua West <jwest@brandeis.edu>
Subject: Hypervisor Memory Limitations on 64-bit Architecture?
Date: Fri, 18 Jul 2008 12:56:34 -0400
Message-ID: <4880CB42.5010802@brandeis.edu>
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Return-path: <xen-devel-bounces@lists.xensource.com>
List-Unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xensource.com>
List-Help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-Subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
Sender: xen-devel-bounces@lists.xensource.com
Errors-To: xen-devel-bounces@lists.xensource.com
To: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
List-Id: xen-devel@lists.xenproject.org

Hey all,

I'm wondering if anybody could shed some light on this subject.  Are
there limitations as to how much RAM a 64-bit Hypervisor will
recognize/support under the Xen 3.1.x or 3.2.x series (or the upcoming
3.3.x if anything has changed)?

>>From what I recall, a 32-bit Xen Hypervisor will recognize up to 16GB of
RAM and a 64-bit Xen Hypervisor will recognize up to 32GB -- but I'm not
certain on if 32GB is in fact the upper limit for 64-bit Xen.

Thanks.

-- 
Joshua West
Systems Engineer
Brandeis University
http://www.brandeis.edu