This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
Home Products Support Community News


[Xen-devel] Re: [PATCH 00 of 14] swiotlb/x86: lay groundwork for xen dom

* FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx> wrote:

> On Thu, 18 Dec 2008 12:17:54 -0600
> Becky Bruce <beckyb@xxxxxxxxxxxxxxxxxxx> wrote:
> > > Can you be more specific? What architecture is plan to use highmem
> > > support in swiotlb?
> > 
> > 32-bit powerpc needs this support - I was actually about to push a  
> > similar set of patches.  We have several processors that support 36  
> > bits of physical address space and do not have any iommu capability.   
> > The rest of the kernel support for those processors is now in place,  
> > so swiotlb is the last piece of the puzzle for that to be fully  
> > functional.  I need to take a closer look at this series to see  
> > exactly what it's doing and how it differs from what I've been testing.
> Ah, thanks,
> Then I accept that highmem support in lib/swiotbl.c is generically 
> useful and we have to live with the ugly complication due to it.

Great! And we of course want to make the best possible job here - so 
whenever you notice any area that could be done better and less 
intrusively, please mention it.


Xen-devel mailing list

<Prev in Thread] Current Thread [Next in Thread>