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 17 /** 18 * CPUListState: 19 * @cpu_fprintf: Print function. 20 * @file: File to print to using @cpu_fprint. 21 * 22 * State commonly used for iterating over CPU models. 23 */ 24 typedef struct CPUListState { 25 fprintf_function cpu_fprintf; 26 FILE *file; 27 } CPUListState; 28 29 #if !defined(CONFIG_USER_ONLY) 30 31 enum device_endian { 32 DEVICE_NATIVE_ENDIAN, 33 DEVICE_BIG_ENDIAN, 34 DEVICE_LITTLE_ENDIAN, 35 }; 36 37 /* address in the RAM (different from a physical address) */ 38 #if defined(CONFIG_XEN_BACKEND) 39 typedef uint64_t ram_addr_t; 40 # define RAM_ADDR_MAX UINT64_MAX 41 # define RAM_ADDR_FMT "%" PRIx64 42 #else 43 typedef uintptr_t ram_addr_t; 44 # define RAM_ADDR_MAX UINTPTR_MAX 45 # define RAM_ADDR_FMT "%" PRIxPTR 46 #endif 47 48 extern ram_addr_t ram_size; 49 50 /* memory API */ 51 52 typedef void CPUWriteMemoryFunc(void *opaque, hwaddr addr, uint32_t value); 53 typedef uint32_t CPUReadMemoryFunc(void *opaque, hwaddr addr); 54 55 void qemu_ram_remap(ram_addr_t addr, ram_addr_t length); 56 /* This should not be used by devices. */ 57 MemoryRegion *qemu_ram_addr_from_host(void *ptr, ram_addr_t *ram_addr); 58 void qemu_ram_set_idstr(ram_addr_t addr, const char *name, DeviceState *dev); 59 void qemu_ram_unset_idstr(ram_addr_t addr); 60 61 void cpu_physical_memory_rw(hwaddr addr, uint8_t *buf, 62 int len, int is_write); 63 static inline void cpu_physical_memory_read(hwaddr addr, 64 void *buf, int len) 65 { 66 cpu_physical_memory_rw(addr, buf, len, 0); 67 } 68 static inline void cpu_physical_memory_write(hwaddr addr, 69 const void *buf, int len) 70 { 71 cpu_physical_memory_rw(addr, (void *)buf, len, 1); 72 } 73 void *cpu_physical_memory_map(hwaddr addr, 74 hwaddr *plen, 75 int is_write); 76 void cpu_physical_memory_unmap(void *buffer, hwaddr len, 77 int is_write, hwaddr access_len); 78 void *cpu_register_map_client(void *opaque, void (*callback)(void *opaque)); 79 80 bool cpu_physical_memory_is_io(hwaddr phys_addr); 81 82 /* Coalesced MMIO regions are areas where write operations can be reordered. 83 * This usually implies that write operations are side-effect free. This allows 84 * batching which can make a major impact on performance when using 85 * virtualization. 86 */ 87 void qemu_flush_coalesced_mmio_buffer(void); 88 89 uint32_t ldub_phys(AddressSpace *as, hwaddr addr); 90 uint32_t lduw_le_phys(AddressSpace *as, hwaddr addr); 91 uint32_t lduw_be_phys(AddressSpace *as, hwaddr addr); 92 uint32_t ldl_le_phys(AddressSpace *as, hwaddr addr); 93 uint32_t ldl_be_phys(AddressSpace *as, hwaddr addr); 94 uint64_t ldq_le_phys(AddressSpace *as, hwaddr addr); 95 uint64_t ldq_be_phys(AddressSpace *as, hwaddr addr); 96 void stb_phys(AddressSpace *as, hwaddr addr, uint32_t val); 97 void stw_le_phys(AddressSpace *as, hwaddr addr, uint32_t val); 98 void stw_be_phys(AddressSpace *as, hwaddr addr, uint32_t val); 99 void stl_le_phys(AddressSpace *as, hwaddr addr, uint32_t val); 100 void stl_be_phys(AddressSpace *as, hwaddr addr, uint32_t val); 101 void stq_le_phys(AddressSpace *as, hwaddr addr, uint64_t val); 102 void stq_be_phys(AddressSpace *as, hwaddr addr, uint64_t val); 103 104 #ifdef NEED_CPU_H 105 uint32_t lduw_phys(AddressSpace *as, hwaddr addr); 106 uint32_t ldl_phys(AddressSpace *as, hwaddr addr); 107 uint64_t ldq_phys(AddressSpace *as, hwaddr addr); 108 void stl_phys_notdirty(AddressSpace *as, hwaddr addr, uint32_t val); 109 void stw_phys(AddressSpace *as, hwaddr addr, uint32_t val); 110 void stl_phys(AddressSpace *as, hwaddr addr, uint32_t val); 111 void stq_phys(AddressSpace *as, hwaddr addr, uint64_t val); 112 #endif 113 114 void cpu_physical_memory_write_rom(AddressSpace *as, hwaddr addr, 115 const uint8_t *buf, int len); 116 void cpu_flush_icache_range(hwaddr start, int len); 117 118 extern struct MemoryRegion io_mem_rom; 119 extern struct MemoryRegion io_mem_notdirty; 120 121 typedef void (RAMBlockIterFunc)(void *host_addr, 122 ram_addr_t offset, ram_addr_t length, void *opaque); 123 124 void qemu_ram_foreach_block(RAMBlockIterFunc func, void *opaque); 125 126 #endif 127 128 #endif /* !CPU_COMMON_H */ 129