LXR qemu/include/exec/cpu-common.h

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