From: Muli Ben-Yehuda <muli@il.ibm.com>
To: Byron Stanoszek <bstanoszek@comtime.com>
Cc: Amit Shah <amit.shah@qumranet.com>, kvm@vger.kernel.org
Subject: Re: VT-d support for device assignment
Date: Fri, 22 Aug 2008 19:08:54 +0300 [thread overview]
Message-ID: <20080822160854.GF6885@il.ibm.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0808220952110.3686@winds.org>
On Fri, Aug 22, 2008 at 09:54:13AM -0400, Byron Stanoszek wrote:
> Is it possible to log any physical PCI accesses from the guest?
> This could be handy for reverse-engineering device drivers, among
> other things.
With PCI passthrough It is possible in theory to log mmio's and pio's
executed by the guest, as well as interrupts delivered to the guest,
although it will have a performance impact. It is not possible to log
DMAs in a simple manner, but you could hook up a PCI analyzer to get
the missing bits.
Cheers,
Muli
--
Workshop on I/O Virtualization (WIOV '08)
Co-located with OSDI '08, Dec 2008, San Diego, CA
http://www.usenix.org/wiov08
next prev parent reply other threads:[~2008-08-22 16:09 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-22 7:10 VT-d support for device assignment Amit Shah
2008-08-22 7:10 ` [PATCH] VT-d: changes to support KVM Amit Shah
2008-08-22 7:10 ` [PATCH] KVM: Device Assignment with VT-d Amit Shah
2008-08-23 16:21 ` [PATCH] VT-d: changes to support KVM Jesse Barnes
2008-08-22 13:54 ` VT-d support for device assignment Byron Stanoszek
2008-08-22 15:32 ` Amit Shah
2008-08-22 18:29 ` Muli Ben-Yehuda
2008-08-22 18:37 ` Avi Kivity
2008-08-22 19:09 ` Muli Ben-Yehuda
2008-08-22 16:08 ` Muli Ben-Yehuda [this message]
2008-08-22 18:12 ` Avi Kivity
2008-08-22 18:23 ` Muli Ben-Yehuda
2008-08-22 18:21 ` Avi Kivity
2008-08-22 18:28 ` Muli Ben-Yehuda
2008-08-23 9:12 ` Amit Shah
2008-08-23 9:33 ` Avi Kivity
2008-08-23 9:49 ` Amit Shah
2008-08-24 10:01 ` Avi Kivity
2008-08-23 9:50 ` Muli Ben-Yehuda
2008-08-23 9:55 ` Muli Ben-Yehuda
2008-08-24 10:02 ` Avi Kivity
2008-08-23 9:57 ` Muli Ben-Yehuda
2008-08-23 10:25 ` Amit Shah
2008-08-23 10:40 ` Muli Ben-Yehuda
2008-08-23 11:11 ` Amit Shah
2008-08-23 12:11 ` Muli Ben-Yehuda
2008-08-23 14:01 ` Amit Shah
2008-09-01 13:08 ` Joerg Roedel
-- strict thread matches above, loose matches on Subject: below --
2008-09-09 15:37 Amit Shah
2008-09-14 0:46 ` Avi Kivity
2008-09-23 18:57 ` Jesse Barnes
2008-09-09 14:44 Amit Shah
2008-09-09 13:50 Han, Weidong
2008-08-26 8:55 Amit Shah
2008-08-26 9:10 ` Avi Kivity
2008-08-26 14:11 ` Amit Shah
2008-08-26 14:38 ` Avi Kivity
2008-08-21 11:10 Ben-Ami Yassour
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