tree f67616115092b183d45bfa42f80b37efb5251eac
parent ecb6d6185b3ae40067330eb889977bf2a51f7429
author Paul Mackerras <paulus@samba.org> 1426844380 +1100
committer Alexander Graf <agraf@suse.de> 1426848153 +0100

KVM: PPC: Book3S HV: Fix instruction emulation

Commit 4a157d61b48c ("KVM: PPC: Book3S HV: Fix endianness of
instruction obtained from HEIR register") had the side effect that
we no longer reset vcpu->arch.last_inst to -1 on guest exit in
the cases where the instruction is not fetched from the guest.
This means that if instruction emulation turns out to be required
in those cases, the host will emulate the wrong instruction, since
vcpu->arch.last_inst will contain the last instruction that was
emulated.

This fixes it by making sure that vcpu->arch.last_inst is reset
to -1 in those cases.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>