Re: [Xen-devel] Xen 3.0 Status update

[Mark Williamson <mark.williamson@xxxxxxxxxxxx>]

> I have a patch that introduces zones into xen, and a hypercall to
> request dmaable memory, which i've made xen_contig_memory() use.
> Unfortunately, there still seems to be some places where kmallocs are
> done for dma buffers. (i tried putting all linux memory into ZONE_NORMAL
> and caught a couple of these places)

The Linux USB stack uses kmalloc-ed memory as DMA buffers as standard 
practice.  This should still be dealt with correctly by bounce buffer code, 
though.

Cheers,
Mark

> If the zones patch would be helpful i could clean it up and post it.
>
> sRp

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