tree 9583ce35ae19ba85cc34ffe2f5b64e7d99045cbe
parent 56bbe686693df7edcca18d1808edd80609e63c31
author Martin Schwidefsky <schwidefsky@de.ibm.com> 1366188819 +0200
committer Martin Schwidefsky <schwidefsky@de.ibm.com> 1367583672 +0200

s390/mm: add pte invalidation notifier for kvm

Add a notifier for kvm to get control before a page table entry is
invalidated. The notifier is only called for ptes of an address space
with pgstes that have been explicitly marked to require notification.
Kvm will use this to get control before prefix pages of virtual CPU
are unmapped.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>