alt_debug
for (i = 0; i < ARRAY_SIZE(alt_debug.facilities); i++)
alt_debug.facilities[i] = -1UL;
for (i = 0; i < ARRAY_SIZE(alt_debug.mfeatures); i++)
alt_debug.mfeatures[i] = -1UL;
alt_debug.spec = 1;
__clear_facility(nr, alt_debug.facilities);
__set_facility(nr, alt_debug.facilities);
__clear_machine_feature(nr, alt_debug.mfeatures);
__set_machine_feature(nr, alt_debug.mfeatures);
static struct alt_debug __bootdata_preserved(alt_debug);
struct alt_debug *d;
d = &alt_debug;