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| author | Julien Grall <julien.grall@citrix.com> | 2015-06-19 19:49:03 +0300 |
|---|---|---|
| committer | David Vrabel <david.vrabel@citrix.com> | 2015-10-23 16:20:33 +0300 |
| commit | 008c320a96d218712043f8db0111d5472697785c (patch) | |
| tree | ad1140a3a51567e5bb14b71fe002ba40db3bf681 /Documentation/prctl | |
| parent | 1084b1988d22dc165c9dbbc2b0e057f9248ac4db (diff) | |
| download | linux-008c320a96d218712043f8db0111d5472697785c.tar.xz | |
xen/grant: Introduce helpers to split a page into grant
Currently, a grant is always based on the Xen page granularity (i.e
4KB). When Linux is using a different page granularity, a single page
will be split between multiple grants.
The new helpers will be in charge of splitting the Linux page into grants
and call a function given by the caller on each grant.
Also provide an helper to count the number of grants within a given
contiguous region.
Note that the x86/include/asm/xen/page.h is now including
xen/interface/grant_table.h rather than xen/grant_table.h. It's
necessary because xen/grant_table.h depends on asm/xen/page.h and will
break the compilation. Furthermore, only definition in
interface/grant_table.h is required.
Signed-off-by: Julien Grall <julien.grall@citrix.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Diffstat (limited to 'Documentation/prctl')
0 files changed, 0 insertions, 0 deletions