[Xen-devel] Re: [PATCH 3/9] xen: add hooks for mapping phys<->bus addresses in swiotlb

[FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx>]

On Thu,  7 May 2009 17:17:16 -0700
Jeremy Fitzhardinge <jeremy@xxxxxxxx> wrote:

> From: Ian Campbell <ian.campbell@xxxxxxxxxx>
> 
> Impact: Xen support for DMA
> 
> Add hooks to allow Xen to do translation between pfn and mfns for the swiotlb
> layer, so that dma actually ends up going to the proper machine pages.
> 
> Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
> Reviewed-by: "H. Peter Anvin" <hpa@xxxxxxxxx>
> Cc: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx>
> ---
>  arch/x86/kernel/pci-swiotlb.c |   10 ----------
>  arch/x86/xen/pci-swiotlb.c    |   18 ++++++++++++++++++
>  drivers/pci/xen-iommu.c       |   11 +++++++++++
>  include/xen/swiotlb.h         |    2 ++
>  4 files changed, 31 insertions(+), 10 deletions(-)

Acked-by: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx>

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