This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
Home Products Support Community News


RE: [Xen-devel] [PATCH] [VTD] Separate VT-d page table from P2M table

To: "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-devel] [PATCH] [VTD] Separate VT-d page table from P2M table
From: "Han, Weidong" <weidong.han@xxxxxxxxx>
Date: Tue, 22 Apr 2008 17:34:11 +0800
Cc: "Xu, Anthony" <anthony.xu@xxxxxxxxx>, "Kay, Allen M" <allen.m.kay@xxxxxxxxx>
Delivery-date: Tue, 22 Apr 2008 02:36:27 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxx
In-reply-to: <C4336BAD.1FDBE%keir.fraser@xxxxxxxxxxxxx>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References: <08DF4D958216244799FC84F3514D70F00145BF7A@xxxxxxxxxxxxxxxxxxxxxxxxxxxx> <C4336BAD.1FDBE%keir.fraser@xxxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
Thread-index: AcikU/U3pfCdxRGgQWKd/PxtMk6F9AABbOHmAAAZSpA=
Thread-topic: [Xen-devel] [PATCH] [VTD] Separate VT-d page table from P2M table
Separate VT-d page table is by default. Shared VT-d page table may be
easy and good in some cases. So we let them co-exist now. If shared VT-d
page table is not necessary and useless, we can remove it easily in

Randy (weidong)

Keir Fraser wrote:
> On 22/4/08 09:36, "Han, Weidong" <weidong.han@xxxxxxxxx> wrote:
>> Currently VT-d page table shares with P2M table, this patch supports
>> separate VT-d page table. 1) add an option (vtd_share) to control
>> whether VT-d page table shares with P2M table or not.
> Why? Is this just another option that noone will understand.
>  -- Keir

Xen-devel mailing list