diff options
Diffstat (limited to 'arch/s390/mm/init.c')
| -rw-r--r-- | arch/s390/mm/init.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c index 248a7101070..8053245fe25 100644 --- a/arch/s390/mm/init.c +++ b/arch/s390/mm/init.c @@ -112,8 +112,9 @@ void __init paging_init(void) init_mm.pgd = swapper_pg_dir; S390_lowcore.kernel_asce = __pa(init_mm.pgd) & PAGE_MASK; #ifdef CONFIG_64BIT - S390_lowcore.kernel_asce |= _ASCE_TYPE_REGION2 | _ASCE_TABLE_LENGTH; - pgd_type = _REGION2_ENTRY_EMPTY; + /* A three level page table (4TB) is enough for the kernel space. */ + S390_lowcore.kernel_asce |= _ASCE_TYPE_REGION3 | _ASCE_TABLE_LENGTH; + pgd_type = _REGION3_ENTRY_EMPTY; #else S390_lowcore.kernel_asce |= _ASCE_TABLE_LENGTH; pgd_type = _SEGMENT_ENTRY_EMPTY; |