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/*
* QEMU physical memory interfaces (target independent).
*
* Copyright (c) 2003 Fabrice Bellard
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef QEMU_SYSTEM_PHYSMEM_H
#define QEMU_SYSTEM_PHYSMEM_H
#include "exec/hwaddr.h"
#include "exec/ramlist.h"
#define DIRTY_CLIENTS_ALL ((1 << DIRTY_MEMORY_NUM) - 1)
#define DIRTY_CLIENTS_NOCODE (DIRTY_CLIENTS_ALL & ~(1 << DIRTY_MEMORY_CODE))
bool physical_memory_get_dirty_flag(ram_addr_t addr, unsigned client);
bool physical_memory_is_clean(ram_addr_t addr);
uint8_t physical_memory_range_includes_clean(ram_addr_t start,
ram_addr_t length,
uint8_t mask);
void physical_memory_set_dirty_flag(ram_addr_t addr, unsigned client);
void physical_memory_set_dirty_range(ram_addr_t start, ram_addr_t length,
uint8_t mask);
/*
* Contrary to physical_memory_sync_dirty_bitmap() this function returns
* the number of dirty pages in @bitmap passed as argument. On the other hand,
* physical_memory_sync_dirty_bitmap() returns newly dirtied pages that
* weren't set in the global migration bitmap.
*/
uint64_t physical_memory_set_dirty_lebitmap(unsigned long *bitmap,
ram_addr_t start,
ram_addr_t pages);
void physical_memory_dirty_bits_cleared(ram_addr_t start, ram_addr_t length);
bool physical_memory_test_and_clear_dirty(ram_addr_t start,
ram_addr_t length,
unsigned client);
DirtyBitmapSnapshot *
physical_memory_snapshot_and_clear_dirty(MemoryRegion *mr, hwaddr offset,
hwaddr length, unsigned client);
bool physical_memory_snapshot_get_dirty(DirtyBitmapSnapshot *snap,
ram_addr_t start,
ram_addr_t length);
#endif
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