tree 0bb2d4ee197011a92002a5cc32d19758a1e87ed0
parent cb404fe0898779ec5fe5e06e90aaddcf40aefad8
author Gleb Natapov <gleb@redhat.com> 1268918426 +0200
committer Avi Kivity <avi@redhat.com> 1274087789 +0300

KVM: x86 emulator: restart string instruction without going back to a guest.

Currently when string instruction is only partially complete we go back
to a guest mode, guest tries to reexecute instruction and exits again
and at this point emulation continues. Avoid all of this by restarting
instruction without going back to a guest mode, but return to a guest
mode each 1024 iterations to allow interrupt injection. Pending
exception causes immediate guest entry too.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>