s390/mm: add (non)secure page access exceptions handlers

Add exceptions handlers performing transparent transition of non-secure
pages to secure (import) upon guest access and secure pages to
non-secure (export) upon hypervisor access.

Signed-off-by: Vasily Gorbik <[email protected]>
[[email protected]: adding checks for failures]
Signed-off-by: Janosch Frank <[email protected]>
[[email protected]:  adding a check for gmap fault]
Signed-off-by: Claudio Imbrenda <[email protected]>
Acked-by: David Hildenbrand <[email protected]>
Acked-by: Cornelia Huck <[email protected]>
Reviewed-by: Christian Borntraeger <[email protected]>
[[email protected]: patch merging, splitting, fixing]
Signed-off-by: Christian Borntraeger <[email protected]>

0 files changed, 0 insertions, 0 deletions