linux-stable/arch/s390/mm
Heiko Carstens b193d2d4d0 s390/mm: split lowcore pages with set_memory_4k()
Use set_memory_4k() to split lowcore pages within the kernel mapping
instead of using the quite subtle !addr check within modify_pmd_table()
and modify_pud_table() to prevent large pages for address zero.

With this lowcore might be mapped with 1MB / 2GB frames and only later
will be split. This way this mapping is handled like every other.

Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2022-09-07 14:04:52 +02:00
..
cmm.c s390/cmm: add missing virt_to_phys() conversion 2021-12-10 16:14:25 +01:00
dump_pagetables.c Revert "s390/smp,ptdump: add absolute lowcore markers" 2022-08-06 09:13:28 +02:00
extable.c s390/uaccess: use exception handler to zero result on get_user() failure 2022-06-01 12:03:17 +02:00
extmem.c s390/extmem: remove stale -ENOSPC comment and handling 2020-07-03 10:49:16 +02:00
fault.c s390/mm: remove unused access parameter from do_fault_error() 2022-08-30 22:00:33 +02:00
gmap.c KVM: s390: pv: refactor s390_reset_acc 2022-07-13 14:42:11 +00:00
hugetlbpage.c s390/mm,hugetlb: don't use pte_val()/pXd_val() as lvalue 2022-03-01 21:05:10 +01:00
init.c Revert "s390/smp: rework absolute lowcore access" 2022-08-06 09:24:07 +02:00
kasan_init.c s390/mm: use set_pXd()/set_pte() helper functions everywhere 2022-03-01 21:05:10 +01:00
maccess.c Revert "s390/smp: rework absolute lowcore access" 2022-08-06 09:24:07 +02:00
Makefile s390/extable: move extable related functions to mm/extable.c 2022-03-08 00:33:00 +01:00
mmap.c s390/mm: enable ARCH_HAS_VM_GET_PAGE_PROT 2022-07-17 17:14:40 -07:00
page-states.c s390/extable: move EX_TABLE define to asm-extable.h 2022-03-08 00:33:00 +01:00
pageattr.c s390/mm,pageattr: don't use pte_val()/pXd_val() as lvalue 2022-03-01 21:05:10 +01:00
pgalloc.c s390/mm: use CRST_ALLOC_ORDER instead of number 2022-02-09 22:56:04 +01:00
pgtable.c s390/mm: use non-quiescing sske for KVM switch to keyed guest 2022-06-01 12:03:16 +02:00
vmem.c s390/mm: split lowcore pages with set_memory_4k() 2022-09-07 14:04:52 +02:00