From: Daniel De Graaf <dgdegra@tycho.nsa.gov>
Date: Wed, 14 Dec 2011 20:12:10 +0000 (-0500)
Subject: xenbus: Use grant-table wrapper functions
X-Git-Tag: v3.3-rc1~129^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2946a52ac7d57c9d02db477e3684259d86446ea7;p=pandora-kernel.git

xenbus: Use grant-table wrapper functions

For xenbus_{map,unmap}_ring to work on HVM, the grant table operations
must be set up using the gnttab_set_{map,unmap}_op functions instead of
directly populating the fields of gnttab_map_grant_ref. These functions
simply populate the structure on paravirtualized Xen; however, on HVM
they must call __pa() on vaddr when populating op->host_addr because the
hypervisor cannot directly interpret guest-virtual addresses.

Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
[v1: Fixed cleanpatch error]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---

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