Re: [Xen-ia64-devel] [RFC] paravirtualize stock swiotlb

[Isaku Yamahata <yamahata@xxxxxxxxxxxxx>]

On Fri, Apr 27, 2007 at 06:13:07PM -0600, Alex Williamson wrote:
> 
>   We need to get to a CONFIG_IA64_GENERIC kernel working, and the first
> step to doing that seems to be fixing our usage of the i386 swiotlb and
> pci-dma-xen.  The patch below paravirtualizes lib/swiotlb.c and rips out
> a lot of the code we had around for supporting the i386 versions.  It
> should be a little more straight-forward to switch to the generic kernel
> flavor after this.  This hasn't had much testing, so please don't run
> this on a machine with data you care about.  I'm running it with
> swiotlb=force to try to exercise it, and it's holding up well.  Comments
> welcome.  Thanks,

Hi Alex.
I fully agree with you that going to CONFIG_IA64_GENERIC instead
of CONFIG_IA64_DIG is the way.
Jan Beulich of Novel is trying the same issue as
"swiotlb abstraction (e.g. for Xen)".
Although I don't know its current status though, you may want to 
talk with him. Or you already did?

-- 
yamahata

_______________________________________________
Xen-ia64-devel mailing list
Xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-ia64-devel