Update both files for disk io limits.
[qemu-dev-zwu.git] / cpu-common.h
blobbb0adf6be42d07bfc1bb078ae1ecb32433ffb1be
1 #ifndef CPU_COMMON_H
2 #define CPU_COMMON_H 1
4 /* CPU interfaces that are target indpendent. */
6 #if defined(__arm__) || defined(__sparc__) || defined(__mips__) || defined(__hppa__) || defined(__ia64__)
7 #define WORDS_ALIGNED
8 #endif
10 #ifdef TARGET_PHYS_ADDR_BITS
11 #include "targphys.h"
12 #endif
14 #ifndef NEED_CPU_H
15 #include "poison.h"
16 #endif
18 #include "bswap.h"
19 #include "qemu-queue.h"
21 #if !defined(CONFIG_USER_ONLY)
23 enum device_endian {
24 DEVICE_NATIVE_ENDIAN,
25 DEVICE_BIG_ENDIAN,
26 DEVICE_LITTLE_ENDIAN,
29 /* address in the RAM (different from a physical address) */
30 typedef unsigned long ram_addr_t;
32 /* memory API */
34 typedef void CPUWriteMemoryFunc(void *opaque, target_phys_addr_t addr, uint32_t value);
35 typedef uint32_t CPUReadMemoryFunc(void *opaque, target_phys_addr_t addr);
37 void cpu_register_physical_memory_log(target_phys_addr_t start_addr,
38 ram_addr_t size,
39 ram_addr_t phys_offset,
40 ram_addr_t region_offset,
41 bool log_dirty);
43 static inline void cpu_register_physical_memory_offset(target_phys_addr_t start_addr,
44 ram_addr_t size,
45 ram_addr_t phys_offset,
46 ram_addr_t region_offset)
48 cpu_register_physical_memory_log(start_addr, size, phys_offset,
49 region_offset, false);
52 static inline void cpu_register_physical_memory(target_phys_addr_t start_addr,
53 ram_addr_t size,
54 ram_addr_t phys_offset)
56 cpu_register_physical_memory_offset(start_addr, size, phys_offset, 0);
59 ram_addr_t cpu_get_physical_page_desc(target_phys_addr_t addr);
60 ram_addr_t qemu_ram_alloc_from_ptr(DeviceState *dev, const char *name,
61 ram_addr_t size, void *host);
62 ram_addr_t qemu_ram_alloc(DeviceState *dev, const char *name, ram_addr_t size);
63 void qemu_ram_unmap(ram_addr_t addr);
64 void qemu_ram_free(ram_addr_t addr);
65 void qemu_ram_free_from_ptr(ram_addr_t addr);
66 void qemu_ram_remap(ram_addr_t addr, ram_addr_t length);
67 /* This should only be used for ram local to a device. */
68 void *qemu_get_ram_ptr(ram_addr_t addr);
69 /* Same but slower, to use for migration, where the order of
70 * RAMBlocks must not change. */
71 void *qemu_safe_ram_ptr(ram_addr_t addr);
72 void qemu_put_ram_ptr(void *addr);
73 /* This should not be used by devices. */
74 int qemu_ram_addr_from_host(void *ptr, ram_addr_t *ram_addr);
75 ram_addr_t qemu_ram_addr_from_host_nofail(void *ptr);
77 int cpu_register_io_memory(CPUReadMemoryFunc * const *mem_read,
78 CPUWriteMemoryFunc * const *mem_write,
79 void *opaque, enum device_endian endian);
80 void cpu_unregister_io_memory(int table_address);
82 void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf,
83 int len, int is_write);
84 static inline void cpu_physical_memory_read(target_phys_addr_t addr,
85 void *buf, int len)
87 cpu_physical_memory_rw(addr, buf, len, 0);
89 static inline void cpu_physical_memory_write(target_phys_addr_t addr,
90 const void *buf, int len)
92 cpu_physical_memory_rw(addr, (void *)buf, len, 1);
94 void *cpu_physical_memory_map(target_phys_addr_t addr,
95 target_phys_addr_t *plen,
96 int is_write);
97 void cpu_physical_memory_unmap(void *buffer, target_phys_addr_t len,
98 int is_write, target_phys_addr_t access_len);
99 void *cpu_register_map_client(void *opaque, void (*callback)(void *opaque));
100 void cpu_unregister_map_client(void *cookie);
102 struct CPUPhysMemoryClient;
103 typedef struct CPUPhysMemoryClient CPUPhysMemoryClient;
104 struct CPUPhysMemoryClient {
105 void (*set_memory)(struct CPUPhysMemoryClient *client,
106 target_phys_addr_t start_addr,
107 ram_addr_t size,
108 ram_addr_t phys_offset,
109 bool log_dirty);
110 int (*sync_dirty_bitmap)(struct CPUPhysMemoryClient *client,
111 target_phys_addr_t start_addr,
112 target_phys_addr_t end_addr);
113 int (*migration_log)(struct CPUPhysMemoryClient *client,
114 int enable);
115 int (*log_start)(struct CPUPhysMemoryClient *client,
116 target_phys_addr_t phys_addr, ram_addr_t size);
117 int (*log_stop)(struct CPUPhysMemoryClient *client,
118 target_phys_addr_t phys_addr, ram_addr_t size);
119 QLIST_ENTRY(CPUPhysMemoryClient) list;
122 void cpu_register_phys_memory_client(CPUPhysMemoryClient *);
123 void cpu_unregister_phys_memory_client(CPUPhysMemoryClient *);
125 /* Coalesced MMIO regions are areas where write operations can be reordered.
126 * This usually implies that write operations are side-effect free. This allows
127 * batching which can make a major impact on performance when using
128 * virtualization.
130 void qemu_register_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size);
132 void qemu_unregister_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size);
134 void qemu_flush_coalesced_mmio_buffer(void);
136 uint32_t ldub_phys(target_phys_addr_t addr);
137 uint32_t lduw_phys(target_phys_addr_t addr);
138 uint32_t ldl_phys(target_phys_addr_t addr);
139 uint64_t ldq_phys(target_phys_addr_t addr);
140 void stl_phys_notdirty(target_phys_addr_t addr, uint32_t val);
141 void stq_phys_notdirty(target_phys_addr_t addr, uint64_t val);
142 void stb_phys(target_phys_addr_t addr, uint32_t val);
143 void stw_phys(target_phys_addr_t addr, uint32_t val);
144 void stl_phys(target_phys_addr_t addr, uint32_t val);
145 void stq_phys(target_phys_addr_t addr, uint64_t val);
147 void cpu_physical_memory_write_rom(target_phys_addr_t addr,
148 const uint8_t *buf, int len);
150 #define IO_MEM_SHIFT 3
152 #define IO_MEM_RAM (0 << IO_MEM_SHIFT) /* hardcoded offset */
153 #define IO_MEM_ROM (1 << IO_MEM_SHIFT) /* hardcoded offset */
154 #define IO_MEM_UNASSIGNED (2 << IO_MEM_SHIFT)
155 #define IO_MEM_NOTDIRTY (3 << IO_MEM_SHIFT)
157 /* Acts like a ROM when read and like a device when written. */
158 #define IO_MEM_ROMD (1)
159 #define IO_MEM_SUBPAGE (2)
161 #endif
163 #endif /* !CPU_COMMON_H */