[PATCH v2 1/3] xen/arm: introduce XENFEAT_grant_map_11

David Vrabel david.vrabel at citrix.com
Tue Jul 8 09:16:50 PDT 2014


On 08/07/14 16:42, Stefano Stabellini wrote:
> The flag tells us that the hypervisor maps a grant page to guest
> physical address == machine address of the page in addition to the
> normal grant mapping address. It is needed to properly issue cache
> maintenance operation at the completion of a DMA operation involving a
> foreign grant.
[...]
> +/* Xen also maps grant references at pfn = mfn */
> +#define XENFEAT_grant_map_11              12

I keep reading this as "grant map eleven".  I think you've used this
abbreviation else where so you should probably keep it as-is.

I might have picked XENFEAT_grant_map_identity.

David




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