The
ae2810c4bb3b383176e8e1b33931b16c01483aab patch introduced
optimization for ram_list.dirty_memory update. However it can only
work correctly if hpratio is 1 as the @bitmap parameter stores 1 bits
per system page size (may vary, 4K or 64K on PPC64) and
ram_list.dirty_memory stores 1 bit per TARGET_PAGE_SIZE
(which is hardcoded to 4K).
This fixes hpratio!=1 case to fall back to the slow path.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Juan Quintela <quintela@redhat.com>
unsigned long page = BIT_WORD(start >> TARGET_PAGE_BITS);
/* start address is aligned at the start of a word? */
- if (((page * BITS_PER_LONG) << TARGET_PAGE_BITS) == start) {
+ if ((((page * BITS_PER_LONG) << TARGET_PAGE_BITS) == start) &&
+ (hpratio == 1)) {
long k;
long nr = BITS_TO_LONGS(pages);