From: david.vrabel@citrix.com (David Vrabel) Date: Tue, 8 Jul 2014 17:16:50 +0100 Subject: [PATCH v2 1/3] xen/arm: introduce XENFEAT_grant_map_11 In-Reply-To: <1404834132-15847-1-git-send-email-stefano.stabellini@eu.citrix.com> References: <1404834132-15847-1-git-send-email-stefano.stabellini@eu.citrix.com> Message-ID: <53BC1972.9050907@citrix.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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