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xen: update xen_add_to_physmap interface 

Update struct xen_add_to_physmap to be in sync with Xen's version of the
structure.
The size field was introduced by:

changeset:   24164:707d27fe03e7
user:        Jean Guyader <jean.guyader@eu.citrix.com>
date:        Fri Nov 18 13:42:08 2011 +0000
summary:     mm: New XENMEM space, XENMAPSPACE_gmfn_range

According to the comment:

"This new field .size is located in the 16 bits padding between .domid
and .space in struct xen_add_to_physmap to stay compatible with older
versions."

Changes in v2:

- remove erroneous comment in the commit message.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
This commit is contained in:
Stefano Stabellini 2012-08-06 15:27:24 +01:00 committed by Konrad Rzeszutek Wilk
parent 7d0642b937
commit b58aaa4b0b
1 changed files with 3 additions and 0 deletions
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include/xen/interface/memory.h
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@ -163,6 +163,9 @@ struct xen_add_to_physmap {
/* Which domain to change the mapping for. */
domid_t domid;
/* Number of pages to go through for gmfn_range */
uint16_t size;
/* Source mapping space. */
#define XENMAPSPACE_shared_info 0 /* shared info page */
#define XENMAPSPACE_grant_table 1 /* grant table page */