A guest executing an invalid invvpid instruction would hang
because the instruction pointer was not updated.

Reported-by: jmontleo@redhat.com
Tested-by: jmontleo@redhat.com
Cc: stable@vger.kernel.org
Fixes: 99b83ac8Reviewed-by: David Matlack <dmatlack@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>