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xen-devel
RE: [Xen-devel] [PATCH] Use lib/swiotlb code for x86_64 SWIOTLB
> I can't see how this can work: First, the way the change is
> done i386 will also use that file (and then
> arch/i386/kernel/swiotlb.c should also be deleted by
> the patch).
That wasn't intentional. i386 can still use the
arch/i386 code.
> Second, there's nothing Xen specific anymore in that file, not
> even the contiguous region creation (the sole difference to
> plain 2.6.20 is the use of virt_to_bus/bus_to_virt). I think
> the first patch should be really just a move of
> arch/i386/kernel/swiotlb.c to lib/swiotlb-xen.c, nothing else.
This should be an improved version of lib/swiotlb.c as
lib/swiotlb-xen.c, with correct code to make the mappings
contiguous.
-Mark Langsdorf
AMD, Inc.
lib-swiotlb-on-x86_64.patch
Description: lib-swiotlb-on-x86_64.patch
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