1 #ifndef CPU_COMMON_H 2 #define CPU_COMMON_H 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 /* The CPU list lock nests outside tb_lock/tb_unlock. */ 27 void qemu_init_cpu_list(void); 28 void cpu_list_lock(void); 29 void cpu_list_unlock(void); 30 31 #if !defined(CONFIG_USER_ONLY) 32 33 enum device_endian { 34 DEVICE_NATIVE_ENDIAN, 35 DEVICE_BIG_ENDIAN, 36 DEVICE_LITTLE_ENDIAN, 37 }; 38 39 /* address in the RAM (different from a physical address) */ 40 #if defined(CONFIG_XEN_BACKEND) 41 typedef uint64_t ram_addr_t; 42 # define RAM_ADDR_MAX UINT64_MAX 43 # define RAM_ADDR_FMT "%" PRIx64 44 #else 45 typedef uintptr_t ram_addr_t; 46 # define RAM_ADDR_MAX UINTPTR_MAX 47 # define RAM_ADDR_FMT "%" PRIxPTR 48 #endif 49 50 extern ram_addr_t ram_size; 51 52 /* memory API */ 53 54 typedef void CPUWriteMemoryFunc(void *opaque, hwaddr addr, uint32_t value); 55 typedef uint32_t CPUReadMemoryFunc(void *opaque, hwaddr addr); 56 57 void qemu_ram_remap(ram_addr_t addr, ram_addr_t length); 58 /* This should not be used by devices. */ 59 ram_addr_t qemu_ram_addr_from_host(void *ptr); 60 RAMBlock *qemu_ram_block_by_name(const char *name); 61 RAMBlock *qemu_ram_block_from_host(void *ptr, bool round_offset, 62 ram_addr_t *offset); 63 void qemu_ram_set_idstr(RAMBlock *block, const char *name, DeviceState *dev); 64 void qemu_ram_unset_idstr(RAMBlock *block); 65 const char *qemu_ram_get_idstr(RAMBlock *rb); 66 67 void cpu_physical_memory_rw(hwaddr addr, uint8_t *buf, 68 int len, int is_write); 69 static inline void cpu_physical_memory_read(hwaddr addr, 70 void *buf, int len) 71 { 72 cpu_physical_memory_rw(addr, buf, len, 0); 73 } 74 static inline void cpu_physical_memory_write(hwaddr addr, 75 const void *buf, int len) 76 { 77 cpu_physical_memory_rw(addr, (void *)buf, len, 1); 78 } 79 void *cpu_physical_memory_map(hwaddr addr, 80 hwaddr *plen, 81 int is_write); 82 void cpu_physical_memory_unmap(void *buffer, hwaddr len, 83 int is_write, hwaddr access_len); 84 void cpu_register_map_client(QEMUBH *bh); 85 void cpu_unregister_map_client(QEMUBH *bh); 86 87 bool cpu_physical_memory_is_io(hwaddr phys_addr); 88 89 /* Coalesced MMIO regions are areas where write operations can be reordered. 90 * This usually implies that write operations are side-effect free. This allows 91 * batching which can make a major impact on performance when using 92 * virtualization. 93 */ 94 void qemu_flush_coalesced_mmio_buffer(void); 95 96 uint32_t ldub_phys(AddressSpace *as, hwaddr addr); 97 uint32_t lduw_le_phys(AddressSpace *as, hwaddr addr); 98 uint32_t lduw_be_phys(AddressSpace *as, hwaddr addr); 99 uint32_t ldl_le_phys(AddressSpace *as, hwaddr addr); 100 uint32_t ldl_be_phys(AddressSpace *as, hwaddr addr); 101 uint64_t ldq_le_phys(AddressSpace *as, hwaddr addr); 102 uint64_t ldq_be_phys(AddressSpace *as, hwaddr addr); 103 void stb_phys(AddressSpace *as, hwaddr addr, uint32_t val); 104 void stw_le_phys(AddressSpace *as, hwaddr addr, uint32_t val); 105 void stw_be_phys(AddressSpace *as, hwaddr addr, uint32_t val); 106 void stl_le_phys(AddressSpace *as, hwaddr addr, uint32_t val); 107 void stl_be_phys(AddressSpace *as, hwaddr addr, uint32_t val); 108 void stq_le_phys(AddressSpace *as, hwaddr addr, uint64_t val); 109 void stq_be_phys(AddressSpace *as, hwaddr addr, uint64_t val); 110 111 void cpu_physical_memory_write_rom(AddressSpace *as, hwaddr addr, 112 const uint8_t *buf, int len); 113 void cpu_flush_icache_range(hwaddr start, int len); 114 115 extern struct MemoryRegion io_mem_rom; 116 extern struct MemoryRegion io_mem_notdirty; 117 118 typedef int (RAMBlockIterFunc)(const char *block_name, void *host_addr, 119 ram_addr_t offset, ram_addr_t length, void *opaque); 120 121 int qemu_ram_foreach_block(RAMBlockIterFunc func, void *opaque); 122 123 #endif 124 125 #endif /* CPU_COMMON_H */ 126