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SubjectRe: [GIT PULL] xen: swiotlb support for Xen dom0

* Jeremy Fitzhardinge <> wrote:

> Hi Ingo,
> This branch adds the swiotlb hooks for Xen dom0. We use swiotlb
> to handle various device drivers which assume that multipage DMA
> transfers which are contigious in kernel memory are also
> contigious in machine memory (mostly lower-performance devices, as
> high-performance ones already do a good job of scatter-gather).
> Following Fujita's suggestion, these changes remove a lot of the
> placeholder stubs in arch/x86/kernel/pci-swiotlb.c and moves them
> into the Xen-specific arch/x86/xen/pci-swiotlb.c. (It still
> relies on overriding the weak functions defined in lib/swiotlb.c.)
> The following changes since commit 2af252ab26150b4411889c9eaf1af4c5bf03de78:
> Jeremy Fitzhardinge (1):
> xen: checkpatch cleanups

Would be nice to have a pull request for this with Fujita-san's acks
embedded in the commits, and with a tree based against tip:x86/xen.


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