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From: Anthony Liguori <anthony-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
To: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
Cc: kvm-devel
	<kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>,
	lguest <lguest-mnsaURCQ41sdnm+yROfE0A@public.gmane.org>,
	virtualization-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
Subject: Re: [kvm-devel] [RFC PATCH 0/4] Inter-guest virtio I/O example with lguest
Date: Thu, 20 Mar 2008 10:52:27 -0500	[thread overview]
Message-ID: <47E2883B.7050108@codemonkey.ws> (raw)
In-Reply-To: <47E28482.9010501-atKUWr5tajBWk0Htik3J/w@public.gmane.org>

Avi Kivity wrote:
>
> I disagree.  A driver domain is shared between multiple guests, and if 
> one of the guests manages to break into qemu then it can see other 
> guest's data.

You still don't strictly need to do things in the kernel if this is your 
concern.  You can have another process map both guest's address spaces 
and do the copying on behalf of each guest if you're paranoid about 
escaping into QEMU.

> [Driver domains are a horrible idea IMO, but that's another story]

I don't disagree :-)

Regards,

Anthony Liguori

  parent reply	other threads:[~2008-03-20 15:52 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-03-20  5:59 [RFC PATCH 0/4] Inter-guest virtio I/O example with lguest Rusty Russell
     [not found] ` <200803201659.14344.rusty-8n+1lVoiYb80n/F98K4Iww@public.gmane.org>
2008-03-20  6:05   ` [RFC PATCH 1/5] lguest: mmap backing file Rusty Russell
     [not found]     ` <200803201705.44422.rusty-8n+1lVoiYb80n/F98K4Iww@public.gmane.org>
2008-03-20  6:22       ` [RFC PATCH 2/5] lguest: Encapsulate Guest memory ready for dealing with other Guests Rusty Russell
2008-03-20  6:36         ` [RFC PATCH 3/5] lguest: separate out virtqueue info from device info Rusty Russell
     [not found]           ` <200803201736.01883.rusty-8n+1lVoiYb80n/F98K4Iww@public.gmane.org>
2008-03-20  6:40             ` [RFC PATCH 4/5] lguest: ignore bad virtqueues Rusty Russell
2008-03-20  6:45               ` [RFC PATCH 5/5] lguest: Inter-guest networking Rusty Russell
2008-03-20 14:04       ` [kvm-devel] [RFC PATCH 1/5] lguest: mmap backing file Anthony Liguori
     [not found]         ` <47E26EE1.5030706-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
2008-03-20 14:32           ` Paul TBBle Hampson
2008-03-20 15:07           ` Avi Kivity
2008-03-20 15:24             ` Anthony Liguori
2008-03-20 22:12           ` [kvm-devel] " Rusty Russell
2008-03-20 23:46             ` Anthony Liguori
2008-03-23  9:11               ` Avi Kivity
2008-03-20  8:16     ` [Lguest] " Tim Post
     [not found]       ` <1206000960.6873.124.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2008-03-20 14:07         ` Paul TBBle Hampson
2008-03-21  0:29         ` Rusty Russell
2008-03-20  6:54   ` [kvm-devel] [RFC PATCH 0/4] Inter-guest virtio I/O example with lguest Avi Kivity
     [not found]     ` <47E20A35.2000600-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2008-03-20 13:55       ` Anthony Liguori
     [not found]         ` <47E26CC1.8080900-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
2008-03-20 14:27           ` Avi Kivity
     [not found]             ` <47E27461.4090404-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2008-03-20 14:39               ` Anthony Liguori
2008-03-20 14:55                 ` Avi Kivity
2008-03-20 15:05                   ` Anthony Liguori
2008-03-20 15:36                     ` Avi Kivity
     [not found]                       ` <47E28482.9010501-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2008-03-20 15:52                         ` Anthony Liguori [this message]
2008-03-20 22:14     ` Rusty Russell
2008-03-20 14:11   ` [kvm-devel] " Anthony Liguori
2008-03-23 12:05     ` Rusty Russell

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