Re: [Xen-devel] about grant table

To:	"Daniel Stodden" <stodden@xxxxxxxxxx>
Subject:	Re: [Xen-devel] about grant table
From:	"余上" <yusunn@xxxxxxxxx>
Date:	Wed, 5 Mar 2008 01:42:09 +0800
Cc:	xen-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date:	Tue, 04 Mar 2008 09:42:34 -0800
Dkim-signature:	v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; bh=V/VjPrdaeH1eAcF5nHTYRMX7hodNTJR0O4lQLcQwB0g=; b=RENZctL5UJV+1jvvlDD8x7dt08VSSMyGbQV3gz1GLfv65zVaGpa0YupOU1LYZeIjufji6VT16am/T1ubHlCGsOnA8bqWM/0kklmBZDSQ1lFA92zEX6TE/5dLnHhfrIcA1RWZYx30RNZdlfB1EfeUb+QHTROXKrVo7Vt6a47Sjl8=
Domainkey-signature:	a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=DNXb+lBuM5BffUMO4U7O9gwqCV+3ZtvrflY/9a5IKO91fGvuXpzB0IDMgi6CAR6AqXVWa690oRaMQ/DbKaDNuApJMzBld0gLfVxraVlXC3PCeC/3cvbmwG7TqY2dQVslOd+oBShwq2YZaY6Bzl+TMRIgpMlrlNeHyepxzzxRQ4M=
Envelope-to:	www-data@xxxxxxxxxxxxxxxxxx
In-reply-to:	<1204649720.6956.4.camel@xxxxxxxxxxxxxxxxxxxx>
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:	<298d852f0803032220n136b8033l30780c508d14d549@xxxxxxxxxxxxxx> <1204644364.6184.14.camel@xxxxxxxxxxxxxxxxxxxx> <298d852f0803040807s796b6d41ya9e9d83e733113bb@xxxxxxxxxxxxxx> <1204647365.6625.5.camel@xxxxxxxxxxxxxxxxxxxx> <298d852f0803040837n19170b87l96bc1ad6cf61f1f3@xxxxxxxxxxxxxx> <1204649720.6956.4.camel@xxxxxxxxxxxxxxxxxxxx>
Sender:	xen-devel-bounces@xxxxxxxxxxxxxxxxxxx

Thanks . I think I got it : guest OS communicates the grant info with
Xen by the "shared" array . When the granted domain wants to access
the shared page , it asks Xen to map into its address space , here is
the "active" array come into being , right ?

2008/3/5, Daniel Stodden <stodden@xxxxxxxxxx>:
>
>  On Wed, 2008-03-05 at 00:37 +0800, 余上 wrote:
>  > > not sure what you mean. grant transfer? certainly not. control transfer?
>  > >  also not.
>  > I mean grant table transfer hypercall , because there I find the share
>  > entry's frame get updated .
>
>
> For a transfer: yes. After all, the granting domain needs to know the
>  replaced frame number.
>
>
>  --
>  Daniel Stodden
>  LRR     -      Lehrstuhl für Rechnertechnik und Rechnerorganisation
>  Institut für Informatik der TU München             D-85748 Garching
>  http://www.lrr.in.tum.de/~stodden         mailto:stodden@xxxxxxxxxx
>  PGP Fingerprint: F5A4 1575 4C56 E26A 0B33  3D80 457E 82AE B0D8 735B
>
>
>

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel

WARNING - OLD ARCHIVES

xen-devel

Re: [Xen-devel] about grant table