[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
More information about the linux-arm-kernel
mailing list