Lines Matching full:grant

34  * GRANT TABLE REPRESENTATION
37 /* Some rough guidelines on accessing and updating grant-table entries
44  * Introducing a valid entry into the grant table:
62  *  which can set a timeout on the use of a grant entry and take necessary
71  *  [*] If GTF_transfer_committed is set then the grant entry is 'committed'.
72  *      The guest must /not/ modify the grant entry until the address of the
88  * Reference to a grant entry in a specified domain's grant table.
93  * A grant table comprises a packed array of grant entries in one or more
100  * Version 1 of the grant table entry structure is maintained purely
116  * Type of grant entry.
117  *  GTF_invalid: This grant entry grants no privileges.
133  *  GTF_reading: Grant entry is currently mapped for reading by @domid. [XEN]
134  *  GTF_writing: Grant entry is currently mapped for writing by @domid. [XEN]
135  *  GTF_sub_page: Grant access to only a subrange of the page.  @domid
136  *                will only be allowed to copy from the grant, and not
152  *      it must /not/ modify the grant entry until GTF_transfer_completed is
164  * Version 2 grant table entries.  These fulfil the same role as
169  * The interface by which domains use grant references does not depend
170  * on the grant table version in use by the other domain.
174  * Version 1 and version 2 grant entries share a common prefix.  The
184  * Version 2 of the grant entry structure, here is a union because three
206      * If the grant type is GTF_grant_access and GTF_sub_page is set,
218      * If the grant is GTF_transitive, @domid is allowed to use the
219      * grant @gref in domain @trans_domid, as if it was the local
221      * with the original grant.
236  * GRANT TABLE QUERIES AND USES
240  * Handle to track a mapping created via a grant reference.
245  * GNTTABOP_map_grant_ref: Map the grant entry (<dom>,<ref>) for access
259  *     to be accounted to the correct grant reference!
276  * GNTTABOP_unmap_grant_ref: Destroy one or more grant-reference mappings
298  * GNTTABOP_setup_table: Set up a grant table for <dom> comprising at least
304  *  3. Xen may not support more than a single grant-table page per domain.
318  * GNTTABOP_dump_table: Dump the contents of the grant table to the
352  * grant references. the foreign domain has to grant read/write access
353  * in its grant table.
356  * or grant reference).
360  * grant appropriate access to their pages to the third party.
392  * grant table.
409  * GNTTABOP_unmap_and_replace: Destroy one or more grant-reference mappings
431  * GNTTABOP_set_version: Request a particular version of the grant
445  * GNTTABOP_get_status_frames: Get the list of frames used to store grant
446  * status for <dom>. In grant format version 2, the status is separated
447  * from the other shared grant fields to allow more efficient synchronization
468  * GNTTABOP_get_version: Get the grant table version which is in
491     uint16_t offset;   /* offset from start of grant */
492     uint16_t length;   /* size within the grant */
503  /* Map the grant entry for access by I/O devices. */
506  /* Map the grant entry for access by host CPUs. */
556     "invalid grant reference",                  \