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RE: [Xen-devel] FLR Patch for Xen 4.0
- To: Bei Guan <gbtju85@xxxxxxxxx>
- From: "Han, Weidong" <weidong.han@xxxxxxxxx>
- Date: Thu, 13 May 2010 10:37:14 +0800
- Accept-language: en-US
- Acceptlanguage: en-US
- Cc: Xen Devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
- Delivery-date: Wed, 12 May 2010 19:38:00 -0700
- List-id: Xen developer discussion <xen-devel.lists.xensource.com>
- Thread-index: AcryRME91YJVzFBkT2ucMd34CtbA6wAAFa9g
- Thread-topic: [Xen-devel] FLR Patch for Xen 4.0
I didn’t try it recently. I think it should still work.
Regards,
Weidong
From: Bei Guan [mailto:gbtju85@xxxxxxxxx]
Sent: Thursday, May 13, 2010 10:34 AM
To: Han, Weidong
Cc: Xen Devel
Subject: Re: [Xen-devel] FLR Patch for Xen 4.0
Have you test the nVidia Geforce 8400 GS
PCI Express x16 in xen4.0, which Mr. Teo Enming have test in xen 3.5-unstable
branch wich some patch.
2010/5/10 Han, Weidong <weidong.han@xxxxxxxxx>
If the device doesn’t
support FLR capability, there will be a default reset for it, e.g. Dstate
transition. But it doesn’t guarantee to work. For your ATI card, we
didn’t try with it. Likely it cannot work. nVidia Quadro FX 3800 and IGD
on Intel platforms (e.g. Q35 and Q45) were tested and works on current Xen
upstream. Some other gfx cards may work with extra patches (e.g. 1:1 map
vBAR and pBAR). There were many emails to discuss it in xen-devel mailing list,
you’d better to find and read those emails.
Regards,
Weidong
From: Bei Guan [mailto:gbtju85@xxxxxxxxx]
Sent: Monday, May 10, 2010 4:53 PM
To: Han, Weidong
Cc: Xen Devel
Subject: Re: [Xen-devel] FLR Patch for Xen 4.0
My VGA hardware is as following. Can I find a patch to make it
support pci passthrough?
#lspci
……
01:00.0 VGA compatible controller: ATI Technologies Inc Mobility Radeon HD 3450
Xen4.0 can not support the ATI adapters defaultly, is it? Because my VGA passthrough
can not work correctly.
2010/5/10 Han, Weidong <weidong.han@xxxxxxxxx>
There were several patches
checked into xen for pci passthru, you can find relevant code in
tools/python/xen/xend/server/pciif.py.
Regards,
Weidong
Hi,
Is there a FLR patch for xen 4.0 PCI Passthrought ?
Thanks.
gavin
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