Re: IOMMU and graphics cards

David Woodhouse
2009-07-06T12:26:31Z

On Fri, 2009-05-08 at 11:35 +0200, Joerg Roedel wrote:
> The other way to achieve consistency is to remove the workaround from
> VT-d code which significantly increases the chance to get the broken
> stuff fixed. David?

It's gone from 2.6.31-rc2, but even the in-tree drivers break, so I
think we have to put it back for 2.6.31 (I've sent Linus the pull
request already).

I do intend to remove it again for 2.6.32 though, and I filed
http://bugzilla.kernel.org/show_bug.cgi?id=13721

For now it's got a clearer description ("Workaround broken graphics
drivers") and defaults to 'n'.

--
David Woodhouse Open Source Technology Centre
David.Woodhouse@intel.com Intel Corporation