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xen-devel
[Xen-devel] Re: [GIT PULL] xen: swiotlb support for Xen dom0
Ingo Molnar wrote:
* Jeremy Fitzhardinge <jeremy@xxxxxxxx> 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.
I will regenerate the branch with the acks (and Joerg made some comments
which I'll address too).
J
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