Re: [PATCH] x86 DMA: Handle devices assigned to the guest by the host

Muli Ben-Yehuda
2008-04-30T06:29:41Z

On Tue, Apr 29, 2008 at 01:37:29PM +0300, Amit Shah wrote:

> dma_alloc_coherent() doesn't call dma_ops->alloc_coherent in case no
> IOMMU translations are necessary.

I always thought this was a huge wart in the x86-64 DMA ops. Would
there be strong resistance to fixing it so that alloc_coherent
matches the way the other ops are used? This will eliminate the need
for this patch and will make other DMA ops implementations saner.

Cheers,
Muli