From: Joerg Roedel <Joerg.Roedel@amd.com>
To: Andreas Hartmann <andihartmann@01019freenet.de>
Cc: Alex Williamson <alex.williamson@redhat.com>,
Chris Sanders <sanders.chris@gmail.com>, <kvm@vger.kernel.org>
Subject: Re: AMD KVM Pci Passthrough reports device busy
Date: Mon, 25 Jun 2012 13:22:53 +0200 [thread overview]
Message-ID: <20120625112253.GT2624@amd.com> (raw)
In-Reply-To: <201206250555.q5P5ttZ4002091@mail.maya.org>
On Mon, Jun 25, 2012 at 07:55:55AM +0200, Andreas Hartmann wrote:
> Hello Joerg,
>
> Joerg Roedel wrote:
> > On Tue, Jun 05, 2012 at 08:27:05AM -0600, Alex Williamson wrote:
> >> Joerg, the question is whether the multifunction device above allows
> >> peer-to-peer between functions that could bypass the iommu. If not, we
> >> can make it the first entry in device specific acs enabled function I
> >> proposed:
> >>
> >> https://lkml.org/lkml/2012/5/30/438
> >>
> >> and it would greatly simplify assigning PCI devices on these systems
> >> with VFIO. Thanks,
> >
> > Hm, good question. I will ask around and let you know what I find out.
>
> May I please ask, if you meanwhile could get any information about
> potential peer-to-peer communication between the functions of the
> following multifunction device:
>
> 00:14.0 SMBus: Advanced Micro Devices [AMD] nee ATI SBx00 SMBus Controller (rev 42)
> 00:14.1 IDE interface: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 IDE Controller (rev 40) (prog-if 8a [Master SecP PriP])
> 00:14.2 Audio device: Advanced Micro Devices [AMD] nee ATI SBx00 Azalia (Intel HDA) (rev 40)
> 00:14.3 ISA bridge: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 LPC host controller (rev 40)
> 00:14.4 PCI bridge: Advanced Micro Devices [AMD] nee ATI SBx00 PCI to PCI Bridge (rev 40) (prog-if 01 [Subtractive decode])
> 00:14.5 USB controller: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB OHCI2 Controller (prog-if 10 [OHCI])
>
> 00:14.0 0c05: 1002:4385 (rev 42)
> 00:14.1 0101: 1002:439c (rev 40)
> 00:14.2 0403: 1002:4383 (rev 40)
> 00:14.3 0601: 1002:439d (rev 40)
> 00:14.4 0604: 1002:4384 (rev 40)
> 00:14.5 0c03: 1002:4399
I asked the 'supposed-to-be-resonsible-person' but didn't get a resonse
so far. I will ping them again.
Joerg
--
AMD Operating System Research Center
Advanced Micro Devices GmbH Einsteinring 24 85609 Dornach
General Managers: Alberto Bozzo
Registration: Dornach, Landkr. Muenchen; Registerger. Muenchen, HRB Nr. 43632
next prev parent reply other threads:[~2012-06-25 11:22 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-04 21:11 AMD KVM Pci Passthrough reports device busy Chris Sanders
2012-06-05 3:44 ` Alex Williamson
2012-06-05 10:39 ` Andreas Hartmann
2012-06-05 14:27 ` Alex Williamson
2012-06-05 15:17 ` Andreas Hartmann
2012-06-05 15:48 ` Alex Williamson
2012-06-05 15:58 ` Andreas Hartmann
2012-06-05 16:19 ` Alex Williamson
2012-06-05 16:55 ` Andreas Hartmann
2012-06-05 18:43 ` Alex Williamson
2012-06-05 20:37 ` Andreas Hartmann
2012-06-05 21:09 ` Alex Williamson
2012-06-05 22:02 ` Andreas Hartmann
2012-06-06 8:12 ` Andreas Hartmann
2012-06-06 8:46 ` Andreas Hartmann
2012-06-06 9:35 ` Andreas Hartmann
2012-06-06 16:39 ` Alex Williamson
2012-06-06 19:17 ` Andreas Hartmann
2012-06-06 10:11 ` Joerg Roedel
2012-06-25 5:55 ` Andreas Hartmann
2012-06-25 11:22 ` Joerg Roedel [this message]
2012-07-11 14:26 ` Andreas Hartmann
2012-07-11 16:58 ` Joerg Roedel
2012-07-11 19:32 ` Andreas Hartmann
2012-07-11 20:01 ` Alex Williamson
2012-06-06 1:32 ` sheng qiu
2012-06-06 3:07 ` Chris Sanders
2012-06-06 3:25 ` Alex Williamson
2012-06-06 3:31 ` Chris Sanders
2012-06-06 5:27 ` Alex Williamson
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