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 #ifndef NEED_CPU_H 11 #include "exec/poison.h" 12 #endif 13 14 #include "qemu/bswap.h" 15 #include "qemu/queue.h" 16 #include "qemu/fprintf-fn.h" 17 #include "qemu/typedefs.h" 18 19 /** 20 * CPUListState: 21 * @cpu_fprintf: Print function. 22 * @file: File to print to using @cpu_fprint. 23 * 24 * State commonly used for iterating over CPU models. 25 */ 26 typedef struct CPUListState { 27 fprintf_function cpu_fprintf; 28 FILE *file; 29 } CPUListState; 30 31 typedef enum MMUAccessType { 32 MMU_DATA_LOAD = 0, 33 MMU_DATA_STORE = 1, 34 MMU_INST_FETCH = 2 35 } MMUAccessType; 36 37 #if !defined(CONFIG_USER_ONLY) 38 39 enum device_endian { 40 DEVICE_NATIVE_ENDIAN, 41 DEVICE_BIG_ENDIAN, 42 DEVICE_LITTLE_ENDIAN, 43 }; 44 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 50 #else 51 typedef uintptr_t ram_addr_t; 52 # define RAM_ADDR_MAX UINTPTR_MAX 53 # define RAM_ADDR_FMT "%" PRIxPTR 54 #endif 55 56 extern ram_addr_t ram_size; 57 ram_addr_t get_current_ram_size(void); 58 59 /* memory API */ 60 61 typedef void CPUWriteMemoryFunc(void *opaque, hwaddr addr, uint32_t value); 62 typedef uint32_t CPUReadMemoryFunc(void *opaque, hwaddr addr); 63 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 void qemu_ram_set_idstr(ram_addr_t addr, const char *name, DeviceState *dev); 68 void qemu_ram_unset_idstr(ram_addr_t addr); 69 70 void cpu_physical_memory_rw(hwaddr addr, uint8_t *buf, 71 int len, int is_write); 72 static inline void cpu_physical_memory_read(hwaddr addr, 73 void *buf, int len) 74 { 75 cpu_physical_memory_rw(addr, buf, len, 0); 76 } 77 static inline void cpu_physical_memory_write(hwaddr addr, 78 const void *buf, int len) 79 { 80 cpu_physical_memory_rw(addr, (void *)buf, len, 1); 81 } 82 void *cpu_physical_memory_map(hwaddr addr, 83 hwaddr *plen, 84 int is_write); 85 void cpu_physical_memory_unmap(void *buffer, hwaddr len, 86 int is_write, hwaddr access_len); 87 void cpu_register_map_client(QEMUBH *bh); 88 void cpu_unregister_map_client(QEMUBH *bh); 89 90 bool cpu_physical_memory_is_io(hwaddr phys_addr); 91 92 /* Coalesced MMIO regions are areas where write operations can be reordered. 93 * This usually implies that write operations are side-effect free. This allows 94 * batching which can make a major impact on performance when using 95 * virtualization. 96 */ 97 void qemu_flush_coalesced_mmio_buffer(void); 98 99 uint32_t ldub_phys(AddressSpace *as, hwaddr addr); 100 uint32_t lduw_le_phys(AddressSpace *as, hwaddr addr); 101 uint32_t lduw_be_phys(AddressSpace *as, hwaddr addr); 102 uint32_t ldl_le_phys(AddressSpace *as, hwaddr addr); 103 uint32_t ldl_be_phys(AddressSpace *as, hwaddr addr); 104 uint64_t ldq_le_phys(AddressSpace *as, hwaddr addr); 105 uint64_t ldq_be_phys(AddressSpace *as, hwaddr addr); 106 void stb_phys(AddressSpace *as, hwaddr addr, uint32_t val); 107 void stw_le_phys(AddressSpace *as, hwaddr addr, uint32_t val); 108 void stw_be_phys(AddressSpace *as, hwaddr addr, uint32_t val); 109 void stl_le_phys(AddressSpace *as, hwaddr addr, uint32_t val); 110 void stl_be_phys(AddressSpace *as, hwaddr addr, uint32_t val); 111 void stq_le_phys(AddressSpace *as, hwaddr addr, uint64_t val); 112 void stq_be_phys(AddressSpace *as, hwaddr addr, uint64_t val); 113 114 #ifdef NEED_CPU_H 115 uint32_t lduw_phys(AddressSpace *as, hwaddr addr); 116 uint32_t ldl_phys(AddressSpace *as, hwaddr addr); 117 uint64_t ldq_phys(AddressSpace *as, hwaddr addr); 118 void stl_phys_notdirty(AddressSpace *as, hwaddr addr, uint32_t val); 119 void stw_phys(AddressSpace *as, hwaddr addr, uint32_t val); 120 void stl_phys(AddressSpace *as, hwaddr addr, uint32_t val); 121 void stq_phys(AddressSpace *as, hwaddr addr, uint64_t val); 122 #endif 123 124 void cpu_physical_memory_write_rom(AddressSpace *as, hwaddr addr, 125 const uint8_t *buf, int len); 126 void cpu_flush_icache_range(hwaddr start, int len); 127 128 extern struct MemoryRegion io_mem_rom; 129 extern struct MemoryRegion io_mem_notdirty; 130 131 typedef int (RAMBlockIterFunc)(const char *block_name, void *host_addr, 132 ram_addr_t offset, ram_addr_t length, void *opaque); 133 134 int qemu_ram_foreach_block(RAMBlockIterFunc func, void *opaque); 135 136 #endif 137 138 #endif /* !CPU_COMMON_H */ 139