tree d0d4cc753d4d58934c5986733d7340fe69e523de
parent 010c520e20413dfd567d568aba2b7238acd37e33
author Gleb Natapov <gleb@redhat.com> 1287048166 +0200
committer Avi Kivity <avi@redhat.com> 1294824099 +0200

KVM: Halt vcpu if page it tries to access is swapped out

If a guest accesses swapped out memory do not swap it in from vcpu thread
context. Schedule work to do swapping and put vcpu into halted state
instead.

Interrupts will still be delivered to the guest and if interrupt will
cause reschedule guest will continue to run another task.

[avi: remove call to get_user_pages_noio(), nacked by Linus; this
      makes everything synchrnous again]

Acked-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>