Re: [Xen-devel] [PATCH v8 0/13] introduce GNTTABOP_cache_flush

[Catalin Marinas <catalin.marinas@xxxxxxx>]

On Mon, Nov 10, 2014 at 04:12:40PM +0000, Stefano Stabellini wrote:
> this patch series introduces support for GNTTABOP_cache_flush to perform
> cache maintenance operation on foreign pages and reverts the current
> code based on XENFEAT_grant_map_identity.
> 
> It also provides a very slow fallback by bouncing on the swiotlb buffer,
> in case the hypercall is not available.
> 
> v7 introduces a flag named dma_coherent in dev_archdata and an accessor
> function named is_device_dma_coherent in asm/dma-mapping.h under arm and
> arm64.

Apart from a few minor comments I gave already, the series looks fine to
me. Once addressed, you can add:

Reviewed-by: Catalin Marinas <catalin.marinas@xxxxxxx>

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