| commit | 6666754b11297526c699f8df63c52d50c24fe946 | |
| author | Annie Li <annie.li@oracle.com> | |
| Mon, 12 Dec 2011 10:14:42 +0000 (12 18:14 +0800) | ||
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | |
| Fri, 16 Dec 2011 16:25:02 +0000 (16 11:25 -0500) | ||
| tree | cd850e009e16c4e1e64d91ab66617ac097c89104 | treesnapshot (tar.gz zip) |
| parent | 9dbc71d53ce4e0260d0a8307838cd9ebddc07a12 | commitdiff |
xen/granttable: Support sub-page grants
- They can't be used to map the page (so can only be used in a GNTTABOP_copy
hypercall).
- It's possible to grant access with a finer granularity than whole pages.
- Xen guarantees that they can be revoked quickly (a normal map grant can
only be revoked with the cooperation of the domain which has been granted
access).
Signed-off-by: Annie Li <annie.li@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
- They can't be used to map the page (so can only be used in a GNTTABOP_copy
hypercall).
- It's possible to grant access with a finer granularity than whole pages.
- Xen guarantees that they can be revoked quickly (a normal map grant can
only be revoked with the cooperation of the domain which has been granted
access).
Signed-off-by: Annie Li <annie.li@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
| drivers/xen/grant-table.c | diffblobblamehistory | |
| include/xen/grant_table.h | diffblobblamehistory |