tree 679077d072c9c0195a962a16f805bb228070a87c
parent c7addb902054195b995114df154e061c7d604f69
author Avi Kivity <avi@qumranet.com> 1190549449 +0200
committer Avi Kivity <avi@qumranet.com> 1201708368 +0200

KVM: MMU: Make flooding detection work when guest page faults are bypassed

When we allow guest page faults to reach the guests directly, we lose
the fault tracking which allows us to detect demand paging.  So we provide
an alternate mechnism by clearing the accessed bit when we set a pte, and
checking it later to see if the guest actually used it.

Signed-off-by: Avi Kivity <avi@qumranet.com>