Messages in this thread | | | Date | Mon, 3 Nov 2014 11:01:49 +0000 | From | David Vrabel <> | Subject | Re: [Xen-devel] [PATCH v7 7/8] xen/arm/arm64: introduce xen_arch_need_swiotlb |
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On 03/11/14 10:45, Stefano Stabellini wrote: > On Mon, 27 Oct 2014, Stefano Stabellini wrote: >> Introduce an arch specific function to find out whether a particular dma >> mapping operation needs to bounce on the swiotlb buffer. >> >> On ARM and ARM64, if the page involved is a foreign page and the device >> is not coherent, we need to bounce because at unmap time we cannot >> execute any required cache maintenance operations (we don't know how to >> find the pfn from the mfn). >> >> No change of behaviour for x86. >> >> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> >> Acked-by: Ian Campbell <ian.campbell@citrix.com> > > Konrad, David, are you OK with the swiotlb-xen changes?
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
But swiotlb is Konrad's responsibility.
David
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