s390/memory hotplug: use pfmf instruction to initialize storage keys
Move and rename init_storage_keys() to pageattr.c, so it can also be
used from the sclp memory hotplug code in order to initialize
storage keys.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index b1f2be9..cfdad57 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -777,40 +777,6 @@
#endif
}
-static void __init init_storage_keys(unsigned long start, unsigned long end)
-{
- unsigned long boundary, function, size;
-
- while (start < end) {
- if (MACHINE_HAS_EDAT2) {
- /* set storage keys for a 2GB frame */
- function = 0x22000 | PAGE_DEFAULT_KEY;
- size = 1UL << 31;
- boundary = (start + size) & ~(size - 1);
- if (boundary <= end) {
- do {
- start = pfmf(function, start);
- } while (start < boundary);
- continue;
- }
- }
- if (MACHINE_HAS_EDAT1) {
- /* set storage keys for a 1MB frame */
- function = 0x21000 | PAGE_DEFAULT_KEY;
- size = 1UL << 20;
- boundary = (start + size) & ~(size - 1);
- if (boundary <= end) {
- do {
- start = pfmf(function, start);
- } while (start < boundary);
- continue;
- }
- }
- page_set_storage_key(start, PAGE_DEFAULT_KEY, 0);
- start += PAGE_SIZE;
- }
-}
-
static void __init setup_memory(void)
{
unsigned long bootmap_size;
@@ -889,7 +855,7 @@
memblock_add_node(PFN_PHYS(start_chunk),
PFN_PHYS(end_chunk - start_chunk), 0);
pfn = max(start_chunk, start_pfn);
- init_storage_keys(PFN_PHYS(pfn), PFN_PHYS(end_chunk));
+ storage_key_init_range(PFN_PHYS(pfn), PFN_PHYS(end_chunk));
}
psw_set_key(PAGE_DEFAULT_KEY);