Messages in this thread | | | Date | Fri, 19 Dec 2008 11:47:42 +0900 | Subject | Re: [PATCH 00 of 14] swiotlb/x86: lay groundwork for xen dom0 use of swiotlb | From | FUJITA Tomonori <> |
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On Thu, 18 Dec 2008 12:17:54 -0600 Becky Bruce <beckyb@kernel.crashing.org> 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.
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