33
30
bool memory_region_access_valid(MemoryRegion *mr, hwaddr addr,
34
31
unsigned size, bool is_write);
36
ram_addr_t qemu_ram_alloc_from_ptr(ram_addr_t size, void *host,
38
ram_addr_t qemu_ram_alloc(ram_addr_t size, MemoryRegion *mr);
39
void *qemu_get_ram_ptr(ram_addr_t addr);
40
void qemu_ram_free(ram_addr_t addr);
41
void qemu_ram_free_from_ptr(ram_addr_t addr);
43
#define VGA_DIRTY_FLAG 0x01
44
#define CODE_DIRTY_FLAG 0x02
45
#define MIGRATION_DIRTY_FLAG 0x08
47
static inline int cpu_physical_memory_get_dirty_flags(ram_addr_t addr)
49
return ram_list.phys_dirty[addr >> TARGET_PAGE_BITS];
52
/* read dirty bit (return 0 or 1) */
53
static inline int cpu_physical_memory_is_dirty(ram_addr_t addr)
55
return cpu_physical_memory_get_dirty_flags(addr) == 0xff;
58
static inline int cpu_physical_memory_get_dirty(ram_addr_t start,
65
end = TARGET_PAGE_ALIGN(start + length);
66
start &= TARGET_PAGE_MASK;
67
for (addr = start; addr < end; addr += TARGET_PAGE_SIZE) {
68
ret |= cpu_physical_memory_get_dirty_flags(addr) & dirty_flags;
73
static inline int cpu_physical_memory_set_dirty_flags(ram_addr_t addr,
76
return ram_list.phys_dirty[addr >> TARGET_PAGE_BITS] |= dirty_flags;
79
static inline void cpu_physical_memory_set_dirty(ram_addr_t addr)
81
cpu_physical_memory_set_dirty_flags(addr, 0xff);
84
static inline int cpu_physical_memory_clear_dirty_flags(ram_addr_t addr,
87
int mask = ~dirty_flags;
89
return ram_list.phys_dirty[addr >> TARGET_PAGE_BITS] &= mask;
92
static inline void cpu_physical_memory_set_dirty_range(ram_addr_t start,
98
end = TARGET_PAGE_ALIGN(start + length);
99
start &= TARGET_PAGE_MASK;
100
for (addr = start; addr < end; addr += TARGET_PAGE_SIZE) {
101
cpu_physical_memory_set_dirty_flags(addr, dirty_flags);
103
xen_modified_memory(addr, length);
106
static inline void cpu_physical_memory_mask_dirty_range(ram_addr_t start,
110
ram_addr_t addr, end;
112
end = TARGET_PAGE_ALIGN(start + length);
113
start &= TARGET_PAGE_MASK;
114
for (addr = start; addr < end; addr += TARGET_PAGE_SIZE) {
115
cpu_physical_memory_clear_dirty_flags(addr, dirty_flags);
119
void cpu_physical_memory_reset_dirty(ram_addr_t start, ram_addr_t end,