6fe7a5bba7
This simplifies check for no commpage to a NULL pointer
check, rather than reserved values for LO_COMMPAGE and
HI_COMMPAGE.
Unify {LO,HI}_COMMPAGE into a single COMMPAGE define.
Acked-by: Warner Losh <imp@bsdimp.com>
Tested-by: Helge Deller <deller@gmx.de>
Reviewed-by: Helge Deller <deller@gmx.de>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>