From mboxrd@z Thu Jan  1 00:00:00 1970
From: Keir Fraser <Keir.Fraser@cl.cam.ac.uk>
Subject: Re: [PATCH 0/4] HVM Virtual S3
Date: Wed, 16 May 2007 22:59:08 +0100
Message-ID: <C2713D3C.7817%Keir.Fraser@cl.cam.ac.uk>
References: <1104166E0B63A341805FDB977862AAD23BC750@pdsmsx414.ccr.corp.intel.com>
Mime-Version: 1.0
Content-Type: text/plain;
	charset="US-ASCII"
Content-Transfer-Encoding: 7bit
Return-path: <xen-devel-bounces@lists.xensource.com>
In-Reply-To: <1104166E0B63A341805FDB977862AAD23BC750@pdsmsx414.ccr.corp.intel.com>
List-Unsubscribe: <http://lists.xensource.com/cgi-bin/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/cgi-bin/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: "Yu, Ke" <ke.yu@intel.com>, xen-devel@lists.xensource.com
List-Id: xen-devel@lists.xenproject.org




On 16/5/07 17:48, "Yu, Ke" <ke.yu@intel.com> wrote:

> The main idea is:
> - emulate ACPI PM1A control resiger in QEMU to capture guest S3 request
> - when QEMU capture guest S3 request, it call hypercall to trap to Xen

So why emulate this register in QEMU at all, rather than directly in Xen?
Xen already knows the address of the pm1a block of ports because it emulates
the pmtimer.

 -- Keir