From: Anthony Liguori <anthony@codemonkey.ws>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH] mark nic as trusted
Date: Wed, 07 Jan 2009 11:53:47 -0600 [thread overview]
Message-ID: <4964EC2B.1080406@codemonkey.ws> (raw)
In-Reply-To: <20090107165050.GI3267@redhat.com>
Gleb Natapov wrote:
> On Wed, Jan 07, 2009 at 10:34:19AM -0600, Anthony Liguori wrote:
>
>> Gleb Natapov wrote:
>>
>>> This patch allows to mark specific nic as trusted by adding special
>>> PCI capability. "Trusted" means that it is used for communication
>>> between host and guest and no malicious entity can inject traffic
>>> to the nic.
>>>
>>> Signed-off-by: Gleb Natapov <gleb@redhat.com>
>>>
>>>
>> What utility does this have? Does this make Windows happy in some
>> special way?
>>
>>
> That is for secure guest<->host communication over network. Guest has to
> know somehow which link host uses for communication. If guest has no way
> to know this, another computer on untrusted network can pretend it is real
> host and "own" a guest.
>
So this is for vmchannel? How do you differentiate a real device with
that bit set compared to the vmchannel device?
Regards,
Anthony Liguori
> --
> Gleb.
>
>
>
next prev parent reply other threads:[~2009-01-07 17:53 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-07 14:26 [Qemu-devel] [PATCH] mark nic as trusted Gleb Natapov
2009-01-07 15:04 ` Mark McLoughlin
2009-01-07 15:19 ` Gleb Natapov
2009-01-07 15:41 ` Mark McLoughlin
2009-01-07 16:02 ` Gleb Natapov
2009-01-07 16:34 ` Anthony Liguori
2009-01-07 16:50 ` Gleb Natapov
2009-01-07 17:53 ` Anthony Liguori [this message]
2009-01-07 17:54 ` Anthony Liguori
2009-01-07 18:41 ` Gleb Natapov
2009-01-07 19:26 ` Anthony Liguori
2009-01-07 19:46 ` Gleb Natapov
2009-01-08 19:58 ` Anthony Liguori
2009-01-08 21:26 ` Gleb Natapov
2009-01-08 21:42 ` Anthony Liguori
2009-01-08 22:49 ` Jamie Lokier
2009-01-08 23:14 ` Dor Laor
2009-01-09 10:41 ` Daniel P. Berrange
2009-01-10 2:18 ` Jamie Lokier
2009-01-10 18:22 ` Anthony Liguori
2009-01-11 4:55 ` Jamie Lokier
2009-01-11 7:10 ` Blue Swirl
2009-01-11 14:08 ` Carl-Daniel Hailfinger
2009-01-11 15:07 ` Dor Laor
2009-01-11 15:34 ` Blue Swirl
2009-01-11 16:01 ` Dor Laor
2009-01-12 2:20 ` Jamie Lokier
2009-01-12 8:05 ` Gleb Natapov
2009-01-12 12:26 ` Dor Laor
2009-01-10 2:27 ` Jamie Lokier
2009-01-08 23:26 ` Anthony Liguori
2009-01-10 2:31 ` Jamie Lokier
2009-01-10 18:24 ` Anthony Liguori
2009-01-11 4:40 ` Jamie Lokier
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