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From: Andreas Hartmann <andihartmann@01019freenet.de>
To: Joerg Roedel <Joerg.Roedel@amd.com>
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: Wed, 11 Jul 2012 16:26:30 +0200
Message-ID: <201207111426.q6BEQTbh002928@mail.maya.org> (raw)
In-Reply-To: <20120606101105.GD757@amd.com>

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.

ping :-)

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


Thanks,
kind regards,
Andreas

  parent reply index

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-04 21:11 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
2012-07-11 14:26         ` Andreas Hartmann [this message]
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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