1 /* Common header file that is included by all of qemu. */
5 #include "config-host.h"
7 #define QEMU_NORETURN __attribute__ ((__noreturn__))
8 #ifdef CONFIG_GCC_ATTRIBUTE_WARN_UNUSED_RESULT
9 #define QEMU_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
11 #define QEMU_WARN_UNUSED_RESULT
14 #define QEMU_BUILD_BUG_ON(x) typedef char __build_bug_on__##__LINE__[(x)?-1:1];
16 typedef struct QEMUTimer QEMUTimer;
17 typedef struct QEMUFile QEMUFile;
18 typedef struct QEMUBH QEMUBH;
19 typedef struct DeviceState DeviceState;
21 /* we put basic includes here to avoid repeating them in device drivers */
45 #define MAP_ANONYMOUS MAP_ANON
48 #define ENOMEDIUM ENODEV
61 * Use the same value as Linux for now.
69 # if (__GNUC__ < 4) || \
70 defined(__GNUC_MINOR__) && (__GNUC__ == 4) && (__GNUC_MINOR__ < 4)
71 /* gcc versions before 4.4.x don't support gnu_printf, so use printf. */
72 # define GCC_ATTR __attribute__((__unused__, format(printf, 1, 2)))
73 # define GCC_FMT_ATTR(n, m) __attribute__((format(printf, n, m)))
75 /* Use gnu_printf when supported (qemu uses standard format strings). */
76 # define GCC_ATTR __attribute__((__unused__, format(gnu_printf, 1, 2)))
77 # define GCC_FMT_ATTR(n, m) __attribute__((format(gnu_printf, n, m)))
81 #define GCC_FMT_ATTR(n, m)
84 typedef int (*fprintf_function)(FILE *f, const char *fmt, ...)
89 #define lseek _lseeki64
90 extern int qemu_ftruncate64(int, int64_t);
91 #define ftruncate qemu_ftruncate64
93 static inline char *realpath(const char *path, char *resolved_path)
95 _fullpath(resolved_path, path, _MAX_PATH);
100 #define PRIx64 "I64x"
101 #define PRIu64 "I64u"
102 #define PRIo64 "I64o"
105 /* FIXME: Remove NEED_CPU_H. */
116 #endif /* !defined(NEED_CPU_H) */
119 typedef void QEMUBHFunc(void *opaque);
121 void async_context_push(void);
122 void async_context_pop(void);
123 int get_async_context_id(void);
125 QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque);
126 void qemu_bh_schedule(QEMUBH *bh);
127 /* Bottom halfs that are scheduled from a bottom half handler are instantly
128 * invoked. This can create an infinite loop if a bottom half handler
129 * schedules itself. qemu_bh_schedule_idle() avoids this infinite loop by
130 * ensuring that the bottom half isn't executed until the next main loop
133 void qemu_bh_schedule_idle(QEMUBH *bh);
134 void qemu_bh_cancel(QEMUBH *bh);
135 void qemu_bh_delete(QEMUBH *bh);
136 int qemu_bh_poll(void);
137 void qemu_bh_update_timeout(int *timeout);
139 void qemu_get_timedate(struct tm *tm, int offset);
140 int qemu_timedate_diff(struct tm *tm);
143 void pstrcpy(char *buf, int buf_size, const char *str);
144 char *pstrcat(char *buf, int buf_size, const char *s);
145 int strstart(const char *str, const char *val, const char **ptr);
146 int stristart(const char *str, const char *val, const char **ptr);
147 int qemu_strnlen(const char *s, int max_len);
148 time_t mktimegm(struct tm *tm);
150 int qemu_fdatasync(int fd);
151 int fcntl_setfl(int fd, int flag);
154 void init_paths(const char *prefix);
155 const char *path(const char *pathname);
157 #define qemu_isalnum(c) isalnum((unsigned char)(c))
158 #define qemu_isalpha(c) isalpha((unsigned char)(c))
159 #define qemu_iscntrl(c) iscntrl((unsigned char)(c))
160 #define qemu_isdigit(c) isdigit((unsigned char)(c))
161 #define qemu_isgraph(c) isgraph((unsigned char)(c))
162 #define qemu_islower(c) islower((unsigned char)(c))
163 #define qemu_isprint(c) isprint((unsigned char)(c))
164 #define qemu_ispunct(c) ispunct((unsigned char)(c))
165 #define qemu_isspace(c) isspace((unsigned char)(c))
166 #define qemu_isupper(c) isupper((unsigned char)(c))
167 #define qemu_isxdigit(c) isxdigit((unsigned char)(c))
168 #define qemu_tolower(c) tolower((unsigned char)(c))
169 #define qemu_toupper(c) toupper((unsigned char)(c))
170 #define qemu_isascii(c) isascii((unsigned char)(c))
171 #define qemu_toascii(c) toascii((unsigned char)(c))
173 void *qemu_malloc(size_t size);
174 void *qemu_realloc(void *ptr, size_t size);
175 void *qemu_mallocz(size_t size);
176 void qemu_free(void *ptr);
177 char *qemu_strdup(const char *str);
178 char *qemu_strndup(const char *str, size_t size);
180 void qemu_mutex_lock_iothread(void);
181 void qemu_mutex_unlock_iothread(void);
183 int qemu_open(const char *name, int flags, ...);
184 ssize_t qemu_write_full(int fd, const void *buf, size_t count)
185 QEMU_WARN_UNUSED_RESULT;
186 void qemu_set_cloexec(int fd);
189 int qemu_eventfd(int pipefd[2]);
190 int qemu_pipe(int pipefd[2]);
193 /* Error handling. */
195 void QEMU_NORETURN hw_error(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
198 typedef void IOReadHandler(void *opaque, const uint8_t *buf, int size);
199 typedef int IOCanReadHandler(void *opaque);
200 typedef void IOHandler(void *opaque);
202 struct ParallelIOArg {
207 typedef int (*DMA_transfer_handler) (void *opaque, int nchan, int pos, int size);
209 /* A load of opaque types so that device init declarations don't have to
210 pull in all the real definitions. */
211 typedef struct NICInfo NICInfo;
212 typedef struct HCIInfo HCIInfo;
213 typedef struct AudioState AudioState;
214 typedef struct BlockDriverState BlockDriverState;
215 typedef struct DriveInfo DriveInfo;
216 typedef struct DisplayState DisplayState;
217 typedef struct DisplayChangeListener DisplayChangeListener;
218 typedef struct DisplaySurface DisplaySurface;
219 typedef struct DisplayAllocator DisplayAllocator;
220 typedef struct PixelFormat PixelFormat;
221 typedef struct TextConsole TextConsole;
222 typedef TextConsole QEMUConsole;
223 typedef struct CharDriverState CharDriverState;
224 typedef struct MACAddr MACAddr;
225 typedef struct VLANState VLANState;
226 typedef struct VLANClientState VLANClientState;
227 typedef struct i2c_bus i2c_bus;
228 typedef struct i2c_slave i2c_slave;
229 typedef struct SMBusDevice SMBusDevice;
230 typedef struct PCIHostState PCIHostState;
231 typedef struct PCIExpressHost PCIExpressHost;
232 typedef struct PCIBus PCIBus;
233 typedef struct PCIDevice PCIDevice;
234 typedef struct SerialState SerialState;
235 typedef struct IRQState *qemu_irq;
236 typedef struct PCMCIACardState PCMCIACardState;
237 typedef struct MouseTransformInfo MouseTransformInfo;
238 typedef struct uWireSlave uWireSlave;
239 typedef struct I2SCodec I2SCodec;
240 typedef struct SSIBus SSIBus;
241 typedef struct EventNotifier EventNotifier;
242 typedef struct VirtIODevice VirtIODevice;
244 typedef uint64_t pcibus_t;
248 IF_IDE, IF_SCSI, IF_FLOPPY, IF_PFLASH, IF_MTD, IF_SD, IF_VIRTIO, IF_XEN,
250 } BlockInterfaceType;
252 void cpu_exec_init_all(unsigned long tb_size);
255 void cpu_save(QEMUFile *f, void *opaque);
256 int cpu_load(QEMUFile *f, void *opaque, int version_id);
258 /* Force QEMU to stop what it's doing and service IO */
259 void qemu_service_io(void);
261 /* Force QEMU to process pending events */
262 void qemu_notify_event(void);
265 void qemu_cpu_kick(void *env);
266 int qemu_cpu_self(void *env);
269 struct qemu_work_item {
270 struct qemu_work_item *next;
271 void (*func)(void *data);
276 #ifdef CONFIG_USER_ONLY
277 #define qemu_init_vcpu(env) do { } while (0)
279 void qemu_init_vcpu(void *env);
282 typedef struct QEMUIOVector {
289 void qemu_iovec_init(QEMUIOVector *qiov, int alloc_hint);
290 void qemu_iovec_init_external(QEMUIOVector *qiov, struct iovec *iov, int niov);
291 void qemu_iovec_add(QEMUIOVector *qiov, void *base, size_t len);
292 void qemu_iovec_copy(QEMUIOVector *dst, QEMUIOVector *src, uint64_t skip,
294 void qemu_iovec_concat(QEMUIOVector *dst, QEMUIOVector *src, size_t size);
295 void qemu_iovec_destroy(QEMUIOVector *qiov);
296 void qemu_iovec_reset(QEMUIOVector *qiov);
297 void qemu_iovec_to_buffer(QEMUIOVector *qiov, void *buf);
298 void qemu_iovec_from_buffer(QEMUIOVector *qiov, const void *buf, size_t count);
299 void qemu_iovec_memset(QEMUIOVector *qiov, int c, size_t count);
302 typedef struct Monitor Monitor;
304 /* Convert a byte between binary and BCD. */
305 static inline uint8_t to_bcd(uint8_t val)
307 return ((val / 10) << 4) | (val % 10);
310 static inline uint8_t from_bcd(uint8_t val)
312 return ((val >> 4) * 10) + (val & 0x0f);
315 /* compute with 96 bit intermediate result: (a*b)/c */
316 static inline uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
321 #ifdef HOST_WORDS_BIGENDIAN
331 rl = (uint64_t)u.l.low * (uint64_t)b;
332 rh = (uint64_t)u.l.high * (uint64_t)b;
335 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;