xen_modified_memory(start, length);
}
+static inline void cpu_physical_memory_set_dirty_lebitmap(unsigned long *bitmap,
+ ram_addr_t start,
+ ram_addr_t pages)
+{
+ unsigned int i, j;
+ unsigned long page_number, c;
+ hwaddr addr;
+ ram_addr_t ram_addr;
+ unsigned int len = (pages + HOST_LONG_BITS - 1) / HOST_LONG_BITS;
+ unsigned long hpratio = getpagesize() / TARGET_PAGE_SIZE;
+
+ /*
+ * bitmap-traveling is faster than memory-traveling (for addr...)
+ * especially when most of the memory is not dirty.
+ */
+ for (i = 0; i < len; i++) {
+ if (bitmap[i] != 0) {
+ c = leul_to_cpu(bitmap[i]);
+ do {
+ j = ffsl(c) - 1;
+ c &= ~(1ul << j);
+ page_number = (i * HOST_LONG_BITS + j) * hpratio;
+ addr = page_number * TARGET_PAGE_SIZE;
+ ram_addr = start + addr;
+ cpu_physical_memory_set_dirty_range(ram_addr,
+ TARGET_PAGE_SIZE * hpratio);
+ } while (c != 0);
+ }
+ }
+}
+
static inline void cpu_physical_memory_clear_dirty_range(ram_addr_t start,
ram_addr_t length,
unsigned client)
static int kvm_get_dirty_pages_log_range(MemoryRegionSection *section,
unsigned long *bitmap)
{
- unsigned int i, j;
- unsigned long page_number, c;
- hwaddr addr;
ram_addr_t start = section->offset_within_region + section->mr->ram_addr;
- ram_addr_t ram_addr;
- unsigned int pages = int128_get64(section->size) / getpagesize();
- unsigned int len = (pages + HOST_LONG_BITS - 1) / HOST_LONG_BITS;
- unsigned long hpratio = getpagesize() / TARGET_PAGE_SIZE;
+ ram_addr_t pages = int128_get64(section->size) / getpagesize();
- /*
- * bitmap-traveling is faster than memory-traveling (for addr...)
- * especially when most of the memory is not dirty.
- */
- for (i = 0; i < len; i++) {
- if (bitmap[i] != 0) {
- c = leul_to_cpu(bitmap[i]);
- do {
- j = ffsl(c) - 1;
- c &= ~(1ul << j);
- page_number = (i * HOST_LONG_BITS + j) * hpratio;
- addr = page_number * TARGET_PAGE_SIZE;
- ram_addr = start + addr;
- cpu_physical_memory_set_dirty_range(ram_addr,
- TARGET_PAGE_SIZE * hpratio);
- } while (c != 0);
- }
- }
+ cpu_physical_memory_set_dirty_lebitmap(bitmap, start, pages);
return 0;
}