Re: [Xen-devel] Question regarding SLAB corruption

[Keir Fraser <keir@xxxxxxxxxxxxx>]

On 9/7/07 23:30, "Keir Fraser" <keir@xxxxxxxxxxxxx> wrote:

>> And is there any more intelligent way to give big chunks of system
>> memory to a PCI device for exclusive use?
> 
> Perhaps dma_alloc_coherent/pci_alloc_consistent? These always return
> machine-contiguous memory. I'm not sure if their use in this way would be an
> abuse of the DMA API, though.

By which I mean: if you were using them instead of alloc_pages *only*
because they guarantee you machine-contiguous memory when running on Xen,
then that would probably be an abuse of the DMA-API.

OTOH, it may just be pointing out places in the driver where
pci_alloc_consistent would be a very suitable API function to be using.

 -- Keir


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