Re: passing through SMBus

[Andrew Cooper <andrew.cooper3@citrix.com>]

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On 14/11/2013 19:30, Shailesh Kumar wrote:
> I am looking for passingthrough the SMBus to the guest.
>
>

Please do not drop xen-devel from the CC line, and please do not top-post.

Passing though the host SMBus to a VM is almost certainly going to cause
issues.  dom0 will likely be using bits and pieces on the SMBus itself.

How are you trying to connect to your windows VM ?

~Andrew

> On Thu, Nov 14, 2013 at 2:55 AM, Andrew Cooper
> <andrew.cooper3@citrix.com <mailto:andrew.cooper3@citrix.com>> wrote:
>
>     On 14/11/13 03:03, Shailesh Kumar wrote:
>>     Hi All, 
>>
>>     I have a windows 7 as my domU and some windows based drivers are
>>     not fully functional (like: touchpad-driver etc ) because they
>>     are SMBus based. I was looking at a way to passthrough the SMBus
>>     at 00:1f.03 on south bridge ( 00:1f.0), I was debugging at
>>     pt-graphics.c and understand that it is detecting the south
>>     bridge and passing it through but the other functions for the
>>     same dev-id are not getting passed through. Seeking help if
>>     someone can help me to get the function '3' also pass through.
>>
>>     I am using Xen-4.2.0 and dom-0 linux kernel is 3.9.4. My dom-0 is
>>     Fedora-17-64bit based.
>>
>>     thanks 
>>     tsk
>
>     Do you mean that you are looking to pass through the host SMBus to
>     a guest, or that you are looking for qemu to emulate an SMBus?
>
>     ~Andrew
>
>


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