Re: [Xen-devel] passing through SMBus

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

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@xxxxxxxxxx> 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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