1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
#ifndef CPU_COMMON_H
#define CPU_COMMON_H
/* CPU interfaces that are target independent. */
#ifndef CONFIG_USER_ONLY
#include "exec/hwaddr.h"
#endif
/* The CPU list lock nests outside page_(un)lock or mmap_(un)lock */
void qemu_init_cpu_list(void);
void cpu_list_lock(void);
void cpu_list_unlock(void);
void tcg_flush_softmmu_tlb(CPUState *cs);
#if !defined(CONFIG_USER_ONLY)
enum device_endian {
DEVICE_NATIVE_ENDIAN,
DEVICE_BIG_ENDIAN,
DEVICE_LITTLE_ENDIAN,
};
#if defined(HOST_WORDS_BIGENDIAN)
#define DEVICE_HOST_ENDIAN DEVICE_BIG_ENDIAN
#else
#define DEVICE_HOST_ENDIAN DEVICE_LITTLE_ENDIAN
#endif
/* address in the RAM (different from a physical address) */
#if defined(CONFIG_XEN_BACKEND)
typedef uint64_t ram_addr_t;
# define RAM_ADDR_MAX UINT64_MAX
# define RAM_ADDR_FMT "%" PRIx64
#else
typedef uintptr_t ram_addr_t;
# define RAM_ADDR_MAX UINTPTR_MAX
# define RAM_ADDR_FMT "%" PRIxPTR
#endif
extern ram_addr_t ram_size;
/* memory API */
typedef void CPUWriteMemoryFunc(void *opaque, hwaddr addr, uint32_t value);
typedef uint32_t CPUReadMemoryFunc(void *opaque, hwaddr addr);
void qemu_ram_remap(ram_addr_t addr, ram_addr_t length);
/* This should not be used by devices. */
ram_addr_t qemu_ram_addr_from_host(void *ptr);
RAMBlock *qemu_ram_block_by_name(const char *name);
RAMBlock *qemu_ram_block_from_host(void *ptr, bool round_offset,
ram_addr_t *offset);
ram_addr_t qemu_ram_block_host_offset(RAMBlock *rb, void *host);
void qemu_ram_set_idstr(RAMBlock *block, const char *name, DeviceState *dev);
void qemu_ram_unset_idstr(RAMBlock *block);
const char *qemu_ram_get_idstr(RAMBlock *rb);
void *qemu_ram_get_host_addr(RAMBlock *rb);
ram_addr_t qemu_ram_get_offset(RAMBlock *rb);
ram_addr_t qemu_ram_get_used_length(RAMBlock *rb);
bool qemu_ram_is_shared(RAMBlock *rb);
bool qemu_ram_is_uf_zeroable(RAMBlock *rb);
void qemu_ram_set_uf_zeroable(RAMBlock *rb);
bool qemu_ram_is_migratable(RAMBlock *rb);
void qemu_ram_set_migratable(RAMBlock *rb);
void qemu_ram_unset_migratable(RAMBlock *rb);
size_t qemu_ram_pagesize(RAMBlock *block);
size_t qemu_ram_pagesize_largest(void);
void cpu_physical_memory_rw(hwaddr addr, uint8_t *buf,
hwaddr len, int is_write);
static inline void cpu_physical_memory_read(hwaddr addr,
void *buf, hwaddr len)
{
cpu_physical_memory_rw(addr, buf, len, 0);
}
static inline void cpu_physical_memory_write(hwaddr addr,
const void *buf, hwaddr len)
{
cpu_physical_memory_rw(addr, (void *)buf, len, 1);
}
void *cpu_physical_memory_map(hwaddr addr,
hwaddr *plen,
int is_write);
void cpu_physical_memory_unmap(void *buffer, hwaddr len,
int is_write, hwaddr access_len);
void cpu_register_map_client(QEMUBH *bh);
void cpu_unregister_map_client(QEMUBH *bh);
bool cpu_physical_memory_is_io(hwaddr phys_addr);
/* Coalesced MMIO regions are areas where write operations can be reordered.
* This usually implies that write operations are side-effect free. This allows
* batching which can make a major impact on performance when using
* virtualization.
*/
void qemu_flush_coalesced_mmio_buffer(void);
void cpu_flush_icache_range(hwaddr start, hwaddr len);
extern struct MemoryRegion io_mem_rom;
extern struct MemoryRegion io_mem_notdirty;
typedef int (RAMBlockIterFunc)(RAMBlock *rb, void *opaque);
int qemu_ram_foreach_block(RAMBlockIterFunc func, void *opaque);
int ram_block_discard_range(RAMBlock *rb, uint64_t start, size_t length);
#endif
#endif /* CPU_COMMON_H */
|
