xen/granttable: Introducing grant table V2 stucture

This patch introduces new structures of grant table V2, grant table V2 is an
extension from V1. Grant table is shared between guest and Xen, and Xen is
responsible to do corresponding work for grant operations, such as: figure
out guest's grant table version, perform different actions based on
different grant table version, etc. Although full-page structure of V2
is different from V1, it play the same role as V1.

Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Annie Li <annie.li@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/include/xen/grant_table.h b/include/xen/grant_table.h
index 11e2dfce42f8..c7a40f8d455a 100644
--- a/include/xen/grant_table.h
+++ b/include/xen/grant_table.h
@@ -145,8 +145,8 @@ gnttab_set_unmap_op(struct gnttab_unmap_grant_ref *unmap, phys_addr_t addr,
 
 int arch_gnttab_map_shared(unsigned long *frames, unsigned long nr_gframes,
                            unsigned long max_nr_gframes,
-                           struct grant_entry **__shared);
-void arch_gnttab_unmap_shared(struct grant_entry *shared,
+                           void **__shared);
+void arch_gnttab_unmap_shared(void *shared,
                               unsigned long nr_gframes);
 
 extern unsigned long xen_hvm_resume_frames;