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authorStefano Stabellini <stefano.stabellini@eu.citrix.com>2010-12-10 14:54:44 +0000
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2011-01-11 14:32:00 -0500
commit289b777eac19c811b474593b4d2fd14e46340c23 (patch)
tree5474d85065eb539d51df994fbdfab5cd2cc0e400 /include
parentxen p2m: transparently change the p2m mappings in the m2p override (diff)
downloadlinux-dev-289b777eac19c811b474593b4d2fd14e46340c23.tar.xz
linux-dev-289b777eac19c811b474593b4d2fd14e46340c23.zip
xen: introduce gnttab_map_refs and gnttab_unmap_refs
gnttab_map_refs maps some grant refs and uses the new m2p override to set a proper m2p mapping for the granted pages. gnttab_unmap_refs unmaps the granted refs and removes th mappings from the m2p override. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'include')
-rw-r--r--include/xen/grant_table.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/xen/grant_table.h b/include/xen/grant_table.h
index 1821aa103d82..b1fab6b5b3ef 100644
--- a/include/xen/grant_table.h
+++ b/include/xen/grant_table.h
@@ -155,4 +155,9 @@ unsigned int gnttab_max_grant_frames(void);
#define gnttab_map_vaddr(map) ((void *)(map.host_virt_addr))
+int gnttab_map_refs(struct gnttab_map_grant_ref *map_ops,
+ struct page **pages, unsigned int count);
+int gnttab_unmap_refs(struct gnttab_unmap_grant_ref *unmap_ops,
+ struct page **pages, unsigned int count);
+
#endif /* __ASM_GNTTAB_H__ */