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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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