ISA_HOLE_START
#define ISA_HOLE_LENGTH (0x100000-ISA_HOLE_START)
|| ((pa) >= ISA_HOLE_START && (pa) <= 0x100000 - (width)))
for (pt = (pt_entry_t *)vm86pa + atop(ISA_HOLE_START), a = 0;
*pt = (ISA_HOLE_START + ptoa(a)) | PG_RW | PG_U | PG_A |
#define ISA_HOLE_LENGTH (0x100000-ISA_HOLE_START)