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From: Avi Kivity <avi@redhat.com>
To: Chris Wright <chrisw@sous-sol.org>
Cc: Anthony Liguori <anthony@codemonkey.ws>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	kvm@vger.kernel.org
Subject: Re: [PATCH corrected RFC] uio: add generic driver for PCI 2.3	devices
Date: Sun, 12 Jul 2009 09:17:01 +0300	[thread overview]
Message-ID: <4A597FDD.7040205@redhat.com> (raw)
In-Reply-To: <20090710022229.GF30379@sequoia.sous-sol.org>

On 07/10/2009 05:22 AM, Chris Wright wrote:
>> I know it's not strictly needed for PCI pass through, but it would be
>> useful to register the IO regions via UIO.  The userspace implementation
>> would then use UIO strictly instead of poking the sysfs pci info
>> directly.  I think that ends up being cleaner.
>>      
>
> I don't see what the advantage is?
>    

Have a single fd represent the assigned device, so security can be 
concentrated at that point.  Some privileged server can then hand out 
the fd to qemu.

-- 
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.


  reply	other threads:[~2009-07-12  6:16 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-07-09 11:48 [PATCH corrected RFC] uio: add generic driver for PCI 2.3 devices Michael S. Tsirkin
2009-07-09 14:54 ` Anthony Liguori
2009-07-09 18:12   ` Michael S. Tsirkin
2009-07-09 20:14     ` Anthony Liguori
2009-07-09 20:21       ` Michael S. Tsirkin
2009-07-10  2:22   ` Chris Wright
2009-07-12  6:17     ` Avi Kivity [this message]
2009-07-10  2:19 ` Chris Wright
2009-07-10 13:56   ` Michael S. Tsirkin
2009-07-09 18:13 Michael S. Tsirkin

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