}
/* get kvm's dirty pages bitmap and update qemu's */
-static int kvm_get_dirty_pages_log_range(MemoryRegionSection *section,
- unsigned long *bitmap)
+static void kvm_slot_sync_dirty_pages(KVMSlot *slot)
{
- ram_addr_t start = section->offset_within_region +
- memory_region_get_ram_addr(section->mr);
- ram_addr_t pages = int128_get64(section->size) / qemu_real_host_page_size;
+ ram_addr_t start = slot->ram_start_offset;
+ ram_addr_t pages = slot->memory_size / qemu_real_host_page_size;
- cpu_physical_memory_set_dirty_lebitmap(bitmap, start, pages);
- return 0;
+ cpu_physical_memory_set_dirty_lebitmap(slot->dirty_bmap, start, pages);
}
#define ALIGN(x, y) (((x)+(y)-1) & ~((y)-1))
KVMState *s = kvm_state;
KVMSlot *mem;
hwaddr start_addr, size;
- hwaddr slot_size, slot_offset = 0;
+ hwaddr slot_size;
size = kvm_align_section(section, &start_addr);
while (size) {
- MemoryRegionSection subsection = *section;
-
slot_size = MIN(kvm_max_slot_size, size);
mem = kvm_lookup_matching_slot(kml, start_addr, slot_size);
if (!mem) {
/* We don't have a slot if we want to trap every access. */
return;
}
-
if (kvm_slot_get_dirty_log(s, mem)) {
- subsection.offset_within_region += slot_offset;
- subsection.size = int128_make64(slot_size);
- kvm_get_dirty_pages_log_range(&subsection, d.dirty_bitmap);
+ kvm_slot_sync_dirty_pages(mem);
}
-
- slot_offset += slot_size;
start_addr += slot_size;
size -= slot_size;
}
int err;
MemoryRegion *mr = section->mr;
bool writeable = !mr->readonly && !mr->rom_device;
- hwaddr start_addr, size, slot_size;
+ hwaddr start_addr, size, slot_size, mr_offset;
+ ram_addr_t ram_start_offset;
void *ram;
if (!memory_region_is_ram(mr)) {
return;
}
- /* use aligned delta to align the ram address */
- ram = memory_region_get_ram_ptr(mr) + section->offset_within_region +
- (start_addr - section->offset_within_address_space);
+ /* The offset of the kvmslot within the memory region */
+ mr_offset = section->offset_within_region + start_addr -
+ section->offset_within_address_space;
+
+ /* use aligned delta to align the ram address and offset */
+ ram = memory_region_get_ram_ptr(mr) + mr_offset;
+ ram_start_offset = memory_region_get_ram_addr(mr) + mr_offset;
kvm_slots_lock();
mem->as_id = kml->as_id;
mem->memory_size = slot_size;
mem->start_addr = start_addr;
+ mem->ram_start_offset = ram_start_offset;
mem->ram = ram;
mem->flags = kvm_mem_flags(mr);
kvm_slot_init_dirty_bitmap(mem);
abort();
}
start_addr += slot_size;
+ ram_start_offset += slot_size;
ram += slot_size;
size -= slot_size;
} while (size);