xen: limit grant v2 interface to the v1 functionality

As there is currently no user for sub-page grants or transient grants
remove that functionality. This at once makes it possible to switch
from grant v2 to grant v1 without restrictions, as there is no loss of
functionality other than the limited frame number width related to
the switch.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>

1 files changed, 0 insertions, 25 deletions

diff --git a/include/xen/grant_table.h b/include/xen/grant_table.h
index dd6c7a32ee32..2e37741f6b8d 100644
--- a/include/xen/grant_table.h
+++ b/include/xen/grant_table.h
@@ -84,24 +84,6 @@ int gnttab_resume(void);
 
 int gnttab_grant_foreign_access(domid_t domid, unsigned long frame,
                                 int readonly);
-int gnttab_grant_foreign_access_subpage(domid_t domid, unsigned long frame,
-                                        int flags, unsigned page_off,
-                                        unsigned length);
-int gnttab_grant_foreign_access_trans(domid_t domid, int flags,
-                                      domid_t trans_domid,
-                                      grant_ref_t trans_gref);
-
-/*
- * Are sub-page grants available on this version of Xen?  Returns true if they
- * are, and false if they're not.
- */
-bool gnttab_subpage_grants_available(void);
-
-/*
- * Are transitive grants available on this version of Xen?  Returns true if they
- * are, and false if they're not.
- */
-bool gnttab_trans_grants_available(void);
 
 /*
  * End access through the given grant reference, iff the grant entry is no
@@ -148,13 +130,6 @@ void gnttab_cancel_free_callback(struct gnttab_free_callback *callback);
 
 void gnttab_grant_foreign_access_ref(grant_ref_t ref, domid_t domid,
                                      unsigned long frame, int readonly);
-int gnttab_grant_foreign_access_subpage_ref(grant_ref_t ref, domid_t domid,
-                                            unsigned long frame, int flags,
-                                            unsigned page_off,
-                                            unsigned length);
-int gnttab_grant_foreign_access_trans_ref(grant_ref_t ref, domid_t domid,
-                                          int flags, domid_t trans_domid,
-                                          grant_ref_t trans_gref);
 
 /* Give access to the first 4K of the page */
 static inline void gnttab_page_grant_foreign_access_ref_one(