4 /* CPU interfaces that are target independent. */
6 #ifndef CONFIG_USER_ONLY
7 #include "exec/hwaddr.h"
11 #include "exec/poison.h"
14 #include "qemu/bswap.h"
15 #include "qemu/queue.h"
16 #include "qemu/fprintf-fn.h"
17 #include "qemu/typedefs.h"
21 * @cpu_fprintf: Print function.
22 * @file: File to print to using @cpu_fprint.
24 * State commonly used for iterating over CPU models.
26 typedef struct CPUListState {
27 fprintf_function cpu_fprintf;
31 typedef enum MMUAccessType {
37 #if !defined(CONFIG_USER_ONLY)
45 /* address in the RAM (different from a physical address) */
46 #if defined(CONFIG_XEN_BACKEND)
47 typedef uint64_t ram_addr_t;
48 # define RAM_ADDR_MAX UINT64_MAX
49 # define RAM_ADDR_FMT "%" PRIx64
51 typedef uintptr_t ram_addr_t;
52 # define RAM_ADDR_MAX UINTPTR_MAX
53 # define RAM_ADDR_FMT "%" PRIxPTR
56 extern ram_addr_t ram_size;
57 ram_addr_t get_current_ram_size(void);
61 typedef void CPUWriteMemoryFunc(void *opaque, hwaddr addr, uint32_t value);
62 typedef uint32_t CPUReadMemoryFunc(void *opaque, hwaddr addr);
64 void qemu_ram_remap(ram_addr_t addr, ram_addr_t length);
65 /* This should not be used by devices. */
66 MemoryRegion *qemu_ram_addr_from_host(void *ptr, ram_addr_t *ram_addr);
67 RAMBlock *qemu_ram_block_by_name(const char *name);
68 RAMBlock *qemu_ram_block_from_host(void *ptr, bool round_offset,
69 ram_addr_t *ram_addr, ram_addr_t *offset);
70 void qemu_ram_set_idstr(ram_addr_t addr, const char *name, DeviceState *dev);
71 void qemu_ram_unset_idstr(ram_addr_t addr);
72 const char *qemu_ram_get_idstr(RAMBlock *rb);
74 void cpu_physical_memory_rw(hwaddr addr, uint8_t *buf,
75 int len, int is_write);
76 static inline void cpu_physical_memory_read(hwaddr addr,
79 cpu_physical_memory_rw(addr, buf, len, 0);
81 static inline void cpu_physical_memory_write(hwaddr addr,
82 const void *buf, int len)
84 cpu_physical_memory_rw(addr, (void *)buf, len, 1);
86 void *cpu_physical_memory_map(hwaddr addr,
89 void cpu_physical_memory_unmap(void *buffer, hwaddr len,
90 int is_write, hwaddr access_len);
91 void cpu_register_map_client(QEMUBH *bh);
92 void cpu_unregister_map_client(QEMUBH *bh);
94 bool cpu_physical_memory_is_io(hwaddr phys_addr);
96 /* Coalesced MMIO regions are areas where write operations can be reordered.
97 * This usually implies that write operations are side-effect free. This allows
98 * batching which can make a major impact on performance when using
101 void qemu_flush_coalesced_mmio_buffer(void);
103 uint32_t ldub_phys(AddressSpace *as, hwaddr addr);
104 uint32_t lduw_le_phys(AddressSpace *as, hwaddr addr);
105 uint32_t lduw_be_phys(AddressSpace *as, hwaddr addr);
106 uint32_t ldl_le_phys(AddressSpace *as, hwaddr addr);
107 uint32_t ldl_be_phys(AddressSpace *as, hwaddr addr);
108 uint64_t ldq_le_phys(AddressSpace *as, hwaddr addr);
109 uint64_t ldq_be_phys(AddressSpace *as, hwaddr addr);
110 void stb_phys(AddressSpace *as, hwaddr addr, uint32_t val);
111 void stw_le_phys(AddressSpace *as, hwaddr addr, uint32_t val);
112 void stw_be_phys(AddressSpace *as, hwaddr addr, uint32_t val);
113 void stl_le_phys(AddressSpace *as, hwaddr addr, uint32_t val);
114 void stl_be_phys(AddressSpace *as, hwaddr addr, uint32_t val);
115 void stq_le_phys(AddressSpace *as, hwaddr addr, uint64_t val);
116 void stq_be_phys(AddressSpace *as, hwaddr addr, uint64_t val);
119 uint32_t lduw_phys(AddressSpace *as, hwaddr addr);
120 uint32_t ldl_phys(AddressSpace *as, hwaddr addr);
121 uint64_t ldq_phys(AddressSpace *as, hwaddr addr);
122 void stl_phys_notdirty(AddressSpace *as, hwaddr addr, uint32_t val);
123 void stw_phys(AddressSpace *as, hwaddr addr, uint32_t val);
124 void stl_phys(AddressSpace *as, hwaddr addr, uint32_t val);
125 void stq_phys(AddressSpace *as, hwaddr addr, uint64_t val);
128 void cpu_physical_memory_write_rom(AddressSpace *as, hwaddr addr,
129 const uint8_t *buf, int len);
130 void cpu_flush_icache_range(hwaddr start, int len);
132 extern struct MemoryRegion io_mem_rom;
133 extern struct MemoryRegion io_mem_notdirty;
135 typedef int (RAMBlockIterFunc)(const char *block_name, void *host_addr,
136 ram_addr_t offset, ram_addr_t length, void *opaque);
138 int qemu_ram_foreach_block(RAMBlockIterFunc func, void *opaque);
142 #endif /* !CPU_COMMON_H */