1 #ifndef CPU_COMMON_H 2 #define CPU_COMMON_H 1 3 4 /* CPU interfaces that are target independent. */ 5 6 #ifndef CONFIG_USER_ONLY 7 #include "exec/hwaddr.h" 8 #endif 9 10 #include "qemu/bswap.h" 11 #include "qemu/queue.h" 12 #include "qemu/fprintf-fn.h" 13 14 /** 15 * CPUListState: 16 * @cpu_fprintf: Print function. 17 * @file: File to print to using @cpu_fprint. 18 * 19 * State commonly used for iterating over CPU models. 20 */ 21 typedef struct CPUListState { 22 fprintf_function cpu_fprintf; 23 FILE *file; 24 } CPUListState; 25 26 typedef enum MMUAccessType { 27 MMU_DATA_LOAD = 0, 28 MMU_DATA_STORE = 1, 29 MMU_INST_FETCH = 2 30 } MMUAccessType; 31 32 #if !defined(CONFIG_USER_ONLY) 33 34 enum device_endian { 35 DEVICE_NATIVE_ENDIAN, 36 DEVICE_BIG_ENDIAN, 37 DEVICE_LITTLE_ENDIAN, 38 }; 39 40 /* address in the RAM (different from a physical address) */ 41 #if defined(CONFIG_XEN_BACKEND) 42 typedef uint64_t ram_addr_t; 43 # define RAM_ADDR_MAX UINT64_MAX 44 # define RAM_ADDR_FMT "%" PRIx64 45 #else 46 typedef uintptr_t ram_addr_t; 47 # define RAM_ADDR_MAX UINTPTR_MAX 48 # define RAM_ADDR_FMT "%" PRIxPTR 49 #endif 50 51 extern ram_addr_t ram_size; 52 53 /* memory API */ 54 55 typedef void CPUWriteMemoryFunc(void *opaque, hwaddr addr, uint32_t value); 56 typedef uint32_t CPUReadMemoryFunc(void *opaque, hwaddr addr); 57 58 void qemu_ram_remap(ram_addr_t addr, ram_addr_t length); 59 /* This should not be used by devices. */ 60 ram_addr_t qemu_ram_addr_from_host(void *ptr); 61 RAMBlock *qemu_ram_block_by_name(const char *name); 62 RAMBlock *qemu_ram_block_from_host(void *ptr, bool round_offset, 63 ram_addr_t *offset); 64 void qemu_ram_set_idstr(RAMBlock *block, const char *name, DeviceState *dev); 65 void qemu_ram_unset_idstr(RAMBlock *block); 66 const char *qemu_ram_get_idstr(RAMBlock *rb); 67 68 void cpu_physical_memory_rw(hwaddr addr, uint8_t *buf, 69 int len, int is_write); 70 static inline void cpu_physical_memory_read(hwaddr addr, 71 void *buf, int len) 72 { 73 cpu_physical_memory_rw(addr, buf, len, 0); 74 } 75 static inline void cpu_physical_memory_write(hwaddr addr, 76 const void *buf, int len) 77 { 78 cpu_physical_memory_rw(addr, (void *)buf, len, 1); 79 } 80 void *cpu_physical_memory_map(hwaddr addr, 81 hwaddr *plen, 82 int is_write); 83 void cpu_physical_memory_unmap(void *buffer, hwaddr len, 84 int is_write, hwaddr access_len); 85 void cpu_register_map_client(QEMUBH *bh); 86 void cpu_unregister_map_client(QEMUBH *bh); 87 88 bool cpu_physical_memory_is_io(hwaddr phys_addr); 89 90 /* Coalesced MMIO regions are areas where write operations can be reordered. 91 * This usually implies that write operations are side-effect free. This allows 92 * batching which can make a major impact on performance when using 93 * virtualization. 94 */ 95 void qemu_flush_coalesced_mmio_buffer(void); 96 97 uint32_t ldub_phys(AddressSpace *as, hwaddr addr); 98 uint32_t lduw_le_phys(AddressSpace *as, hwaddr addr); 99 uint32_t lduw_be_phys(AddressSpace *as, hwaddr addr); 100 uint32_t ldl_le_phys(AddressSpace *as, hwaddr addr); 101 uint32_t ldl_be_phys(AddressSpace *as, hwaddr addr); 102 uint64_t ldq_le_phys(AddressSpace *as, hwaddr addr); 103 uint64_t ldq_be_phys(AddressSpace *as, hwaddr addr); 104 void stb_phys(AddressSpace *as, hwaddr addr, uint32_t val); 105 void stw_le_phys(AddressSpace *as, hwaddr addr, uint32_t val); 106 void stw_be_phys(AddressSpace *as, hwaddr addr, uint32_t val); 107 void stl_le_phys(AddressSpace *as, hwaddr addr, uint32_t val); 108 void stl_be_phys(AddressSpace *as, hwaddr addr, uint32_t val); 109 void stq_le_phys(AddressSpace *as, hwaddr addr, uint64_t val); 110 void stq_be_phys(AddressSpace *as, hwaddr addr, uint64_t val); 111 112 void cpu_physical_memory_write_rom(AddressSpace *as, hwaddr addr, 113 const uint8_t *buf, int len); 114 void cpu_flush_icache_range(hwaddr start, int len); 115 116 extern struct MemoryRegion io_mem_rom; 117 extern struct MemoryRegion io_mem_notdirty; 118 119 typedef int (RAMBlockIterFunc)(const char *block_name, void *host_addr, 120 ram_addr_t offset, ram_addr_t length, void *opaque); 121 122 int qemu_ram_foreach_block(RAMBlockIterFunc func, void *opaque); 123 124 #endif 125 126 #endif /* !CPU_COMMON_H */ 127