exec: round up size on MR resize
Block size must fundamentally be a multiple of target page size.
Aligning automatically removes need to worry about the alignment
from callers.
Note: the only caller of qemu_ram_resize (acpi) already happens to have
size padded to a power of 2, but we would like to drop the padding in
ACPI core, and don't want to expose target page size knowledge to ACPI.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Paolo Bonzini <ponzini@redhat.com>
diff --git a/exec.c b/exec.c
index c85321a..6a5adab 100644
--- a/exec.c
+++ b/exec.c
@@ -1347,6 +1347,8 @@
assert(block);
+ newsize = TARGET_PAGE_ALIGN(newsize);
+
if (block->used_length == newsize) {
return 0;
}
