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| author | Wei Liu <wei.liu2@citrix.com> | 2012-03-01 16:37:18 +0000 |
|---|---|---|
| committer | Wei Liu <wei.liu2@citrix.com> | 2012-03-01 16:37:18 +0000 |
| commit | e09b7cbbdc5675d5237be5cd46fbcc55ffa64a4d (patch) | |
| tree | c172fb9fbfb0db3763aaf8641ce8d9260afa1d00 /xen/common/grant_table.c | |
| parent | 39eb9768411ef1ff0905297c1cc95fde8d0ee49c (diff) | |
| download | xen-e09b7cbbdc5675d5237be5cd46fbcc55ffa64a4d.tar.gz xen-e09b7cbbdc5675d5237be5cd46fbcc55ffa64a4d.tar.bz2 xen-e09b7cbbdc5675d5237be5cd46fbcc55ffa64a4d.zip | |
Grant table: fix a bug when grant copying a previous grant mapped page.
In grant table version 2, when we create a non-transitive mapping from
DomU to Dom0, we need to set active entry's trans_domain and
trans_ref. Otherwise when we grant copy from this previous mapped
ref, preemption count will get messed up.
See changeset 22994:299ed79acecf for more information.
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Committed-by: Keir Fraser <keir@xen.org>
Diffstat (limited to 'xen/common/grant_table.c')
| -rw-r--r-- | xen/common/grant_table.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/xen/common/grant_table.c b/xen/common/grant_table.c index 4d637833d6..28a256197e 100644 --- a/xen/common/grant_table.c +++ b/xen/common/grant_table.c @@ -585,6 +585,8 @@ __gnttab_map_grant_ref( act->start = 0; act->length = PAGE_SIZE; act->is_sub_page = 0; + act->trans_domain = rd; + act->trans_gref = op->ref; } } |