Re: help? need to enable VT-d for 2.6.27

[David Ahern <dsahern@gmail.com>]

On 08/30/2011 10:29 AM, Chris Friesen wrote:
> 
> I'm in a bit of an odd situation.  We run an embedded version of linux
> on many different boards with different vendor agreements so it's
> painful to upgrade kernel versions.
> 
> I've been asked to provide VT-d support for KVM on our kernel (primarily
> for mapping NIC VFs into the guests), and I'm trying to figure out my
> best option to get a working implementation.

I've had pains with VF passthrough with as late as a Fedora 14 kernel
(2.6.35). Ended up punting and moving to 2.6.39.

> 
> Looking at the kvm git tree, kvm-77 seems to be based off 2.6.27. Should
> I look at porting that?

By 2.6.27 do you mean WRL3 or something else?

David

> 
> Would I be better off just scanning for anything VT-d related in 2.6.28
> and backporting it?
> 
> Are there any better options?  Any advice you could provide would be
> appreciated.
> 
> Thanks,
> Chris
> 
>