Lines Matching full:grant

17  * GRANT TABLE REPRESENTATION
20 /* Some rough guidelines on accessing and updating grant-table entries
23 …* http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=blob;f=drivers/xen/grant-table.c;…
28  * Introducing a valid entry into the grant table:
46  *  which can set a timeout on the use of a grant entry and take necessary
55  *  [*] If GTF_transfer_committed is set then the grant entry is 'committed'.
56  *      The guest must /not/ modify the grant entry until the address of the
72  * Reference to a grant entry in a specified domain's grant table.
77  * A grant table comprises a packed array of grant entries in one or more
84  * Version 1 of the grant table entry structure is maintained largely for
102 /* The first few grant table entries will be preserved across grant table
110  * Type of grant entry.
111  *  GTF_invalid: This grant entry grants no privileges.
127  *  GTF_reading: Grant entry is currently mapped for reading by @domid. [XEN]
128  *  GTF_writing: Grant entry is currently mapped for writing by @domid. [XEN]
131  *                             mappings of the grant [GST]
132  *  GTF_sub_page: Grant access to only a subrange of the page.  @domid
133  *                will only be allowed to copy from the grant, and not
155  *      it must /not/ modify the grant entry until GTF_transfer_completed is
167  * Version 2 grant table entries.  These fulfil the same role as
172  * The interface by which domains use grant references does not depend
173  * on the grant table version in use by the other domain.
177  * Version 1 and version 2 grant entries share a common prefix.  The
187  * Version 2 of the grant entry structure.
208      * If the grant type is GTF_grant_access and GTF_sub_page is set,
220      * If the grant is GTF_transitive, @domid is allowed to use the
221      * grant @gref in domain @trans_domid, as if it was the local
223      * with the original grant.
241  * GRANT TABLE QUERIES AND USES
260  * Handle to track a mapping created via a grant reference.
265  * GNTTABOP_map_grant_ref: Map the grant entry (<dom>,<ref>) for access
279  *     to be accounted to the correct grant reference!
295  * GNTTABOP_unmap_grant_ref: Destroy one or more grant-reference mappings
316  * GNTTABOP_setup_table: Set up a grant table for <dom> comprising at least
322  *  3. Xen may not support more than a single grant-table page per domain.
335  * GNTTABOP_dump_table: Dump the contents of the grant table to the
368  * grant references. the foreign domain has to grant read/write access
369  * in its grant table.
372  * or grant reference).
376  * grant appropriate access to their pages to the third party.
407  * grant table.
423  * GNTTABOP_unmap_and_replace: Destroy one or more grant-reference mappings
444  * GNTTABOP_set_version: Request a particular version of the grant
456  * GNTTABOP_get_status_frames: Get the list of frames used to store grant
457  * status for <dom>. In grant format version 2, the status is separated
458  * from the other shared grant fields to allow more efficient synchronization
478  * GNTTABOP_get_version: Get the grant table version which is in
491  * GNTTABOP_swap_grant_ref: Swap the contents of two grant entries.
511     uint16_t offset; /* offset from start of grant */
512     uint16_t length; /* size within the grant */
523  /* Map the grant entry for access by I/O devices. */
526  /* Map the grant entry for access by host CPUs. */
577     "invalid grant reference",                  \