DeviceListener device_listener;
hwaddr free_phys_offset;
const XenPhysmap *log_for_dirtybit;
+ /* Buffer used by xen_sync_dirty_bitmap */
+ unsigned long *dirty_bitmap;
Notifier exit;
Notifier suspend;
QLIST_REMOVE(physmap, list);
if (state->log_for_dirtybit == physmap) {
state->log_for_dirtybit = NULL;
+ g_free(state->dirty_bitmap);
+ state->dirty_bitmap = NULL;
}
g_free(physmap);
{
hwaddr npages = size >> TARGET_PAGE_BITS;
const int width = sizeof(unsigned long) * 8;
- unsigned long bitmap[DIV_ROUND_UP(npages, width)];
+ size_t bitmap_size = DIV_ROUND_UP(npages, width);
int rc, i, j;
const XenPhysmap *physmap = NULL;
if (state->log_for_dirtybit == NULL) {
state->log_for_dirtybit = physmap;
+ state->dirty_bitmap = g_new(unsigned long, bitmap_size);
} else if (state->log_for_dirtybit != physmap) {
/* Only one range for dirty bitmap can be tracked. */
return;
}
rc = xen_track_dirty_vram(xen_domid, start_addr >> TARGET_PAGE_BITS,
- npages, bitmap);
+ npages, state->dirty_bitmap);
if (rc < 0) {
#ifndef ENODATA
#define ENODATA ENOENT
return;
}
- for (i = 0; i < ARRAY_SIZE(bitmap); i++) {
- unsigned long map = bitmap[i];
+ for (i = 0; i < bitmap_size; i++) {
+ unsigned long map = state->dirty_bitmap[i];
while (map != 0) {
j = ctzl(map);
map &= ~(1ul << j);
if (old & ~new & (1 << DIRTY_MEMORY_VGA)) {
state->log_for_dirtybit = NULL;
+ g_free(state->dirty_bitmap);
+ state->dirty_bitmap = NULL;
/* Disable dirty bit tracking */
xen_track_dirty_vram(xen_domid, 0, 0, NULL);
}