diff options
| author | Michael S. Tsirkin <mst@redhat.com> | 2013-08-19 17:26:52 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2013-08-21 00:18:39 +0300 |
| commit | 0851c9f75ccb0baf28f5bf901b9ffe3c91fcf969 (patch) | |
| tree | 87334710c73cdace76979bd9762c7eb35fd843b2 /arch_init.c | |
| parent | c0b4cc1f9f4df9d7459dc778e64f00a4e781fd88 (diff) | |
arch_init: align MR size to target page size
Migration code assumes that each MR is a multiple of TARGET_PAGE_SIZE:
MR size is divided by TARGET_PAGE_SIZE, so if it isn't migration
never completes.
But this isn't really required for regions set up with
memory_region_init_ram, since that calls qemu_ram_alloc
which aligns size up using TARGET_PAGE_ALIGN.
Align MR size up to full target page sizes, this way
migration completes even if we create a RAM MR
which is not a full target page size.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Diffstat (limited to 'arch_init.c')
| -rw-r--r-- | arch_init.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch_init.c b/arch_init.c index 68a7ab784f..ac8eb593c9 100644 --- a/arch_init.c +++ b/arch_init.c @@ -342,7 +342,8 @@ ram_addr_t migration_bitmap_find_and_reset_dirty(MemoryRegion *mr, { unsigned long base = mr->ram_addr >> TARGET_PAGE_BITS; unsigned long nr = base + (start >> TARGET_PAGE_BITS); - unsigned long size = base + (int128_get64(mr->size) >> TARGET_PAGE_BITS); + uint64_t mr_size = TARGET_PAGE_ALIGN(memory_region_size(mr)); + unsigned long size = base + (mr_size >> TARGET_PAGE_BITS); unsigned long next; |