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];
15 #define TFR(expr) do { if ((expr) != -1) break; } while (errno == EINTR)
17 typedef struct QEMUTimer QEMUTimer;
18 typedef struct QEMUFile QEMUFile;
19 typedef struct QEMUBH QEMUBH;
20 typedef struct DeviceState DeviceState;
23 typedef struct Monitor Monitor;
25 /* we put basic includes here to avoid repeating them in device drivers */
44 #include "qemu-os-win32.h"
48 #include "qemu-os-posix.h"
58 #define MAP_ANONYMOUS MAP_ANON
61 #define ENOMEDIUM ENODEV
67 #define TIME_MAX LONG_MAX
77 * Use the same value as Linux for now.
85 # if (__GNUC__ < 4) || \
86 defined(__GNUC_MINOR__) && (__GNUC__ == 4) && (__GNUC_MINOR__ < 4)
87 /* gcc versions before 4.4.x don't support gnu_printf, so use printf. */
88 # define GCC_ATTR __attribute__((__unused__, format(printf, 1, 2)))
89 # define GCC_FMT_ATTR(n, m) __attribute__((format(printf, n, m)))
91 /* Use gnu_printf when supported (qemu uses standard format strings). */
92 # define GCC_ATTR __attribute__((__unused__, format(gnu_printf, 1, 2)))
93 # define GCC_FMT_ATTR(n, m) __attribute__((format(gnu_printf, n, m)))
97 #define GCC_FMT_ATTR(n, m)
100 typedef int (*fprintf_function)(FILE *f, const char *fmt, ...)
104 #define fsync _commit
105 #define lseek _lseeki64
106 int qemu_ftruncate64(int, int64_t);
107 #define ftruncate qemu_ftruncate64
109 static inline char *realpath(const char *path, char *resolved_path)
111 _fullpath(resolved_path, path, _MAX_PATH);
112 return resolved_path;
115 #define PRId64 "I64d"
116 #define PRIx64 "I64x"
117 #define PRIu64 "I64u"
118 #define PRIo64 "I64o"
121 /* FIXME: Remove NEED_CPU_H. */
132 #endif /* !defined(NEED_CPU_H) */
135 typedef void QEMUBHFunc(void *opaque);
137 void async_context_push(void);
138 void async_context_pop(void);
139 int get_async_context_id(void);
141 QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque);
142 void qemu_bh_schedule(QEMUBH *bh);
143 /* Bottom halfs that are scheduled from a bottom half handler are instantly
144 * invoked. This can create an infinite loop if a bottom half handler
145 * schedules itself. qemu_bh_schedule_idle() avoids this infinite loop by
146 * ensuring that the bottom half isn't executed until the next main loop
149 void qemu_bh_schedule_idle(QEMUBH *bh);
150 void qemu_bh_cancel(QEMUBH *bh);
151 void qemu_bh_delete(QEMUBH *bh);
152 int qemu_bh_poll(void);
153 void qemu_bh_update_timeout(int *timeout);
155 void qemu_get_timedate(struct tm *tm, int offset);
156 int qemu_timedate_diff(struct tm *tm);
159 void pstrcpy(char *buf, int buf_size, const char *str);
160 char *pstrcat(char *buf, int buf_size, const char *s);
161 int strstart(const char *str, const char *val, const char **ptr);
162 int stristart(const char *str, const char *val, const char **ptr);
163 int qemu_strnlen(const char *s, int max_len);
164 time_t mktimegm(struct tm *tm);
166 int qemu_fdatasync(int fd);
167 int fcntl_setfl(int fd, int flag);
170 * strtosz() suffixes used to specify the default treatment of an
171 * argument passed to strtosz() without an explicit suffix.
172 * These should be defined using upper case characters in the range
173 * A-Z, as strtosz() will use qemu_toupper() on the given argument
174 * prior to comparison.
176 #define STRTOSZ_DEFSUFFIX_TB 'T'
177 #define STRTOSZ_DEFSUFFIX_GB 'G'
178 #define STRTOSZ_DEFSUFFIX_MB 'M'
179 #define STRTOSZ_DEFSUFFIX_KB 'K'
180 #define STRTOSZ_DEFSUFFIX_B 'B'
181 int64_t strtosz(const char *nptr, char **end);
182 int64_t strtosz_suffix(const char *nptr, char **end, const char default_suffix);
185 void init_paths(const char *prefix);
186 const char *path(const char *pathname);
188 #define qemu_isalnum(c) isalnum((unsigned char)(c))
189 #define qemu_isalpha(c) isalpha((unsigned char)(c))
190 #define qemu_iscntrl(c) iscntrl((unsigned char)(c))
191 #define qemu_isdigit(c) isdigit((unsigned char)(c))
192 #define qemu_isgraph(c) isgraph((unsigned char)(c))
193 #define qemu_islower(c) islower((unsigned char)(c))
194 #define qemu_isprint(c) isprint((unsigned char)(c))
195 #define qemu_ispunct(c) ispunct((unsigned char)(c))
196 #define qemu_isspace(c) isspace((unsigned char)(c))
197 #define qemu_isupper(c) isupper((unsigned char)(c))
198 #define qemu_isxdigit(c) isxdigit((unsigned char)(c))
199 #define qemu_tolower(c) tolower((unsigned char)(c))
200 #define qemu_toupper(c) toupper((unsigned char)(c))
201 #define qemu_isascii(c) isascii((unsigned char)(c))
202 #define qemu_toascii(c) toascii((unsigned char)(c))
205 /* ffs() in oslib-win32.c for WIN32, strings.h for the rest of the world */
209 void *qemu_oom_check(void *ptr);
210 void *qemu_malloc(size_t size);
211 void *qemu_realloc(void *ptr, size_t size);
212 void *qemu_mallocz(size_t size);
213 void qemu_free(void *ptr);
214 char *qemu_strdup(const char *str);
215 char *qemu_strndup(const char *str, size_t size);
217 void qemu_mutex_lock_iothread(void);
218 void qemu_mutex_unlock_iothread(void);
220 int qemu_open(const char *name, int flags, ...);
221 ssize_t qemu_write_full(int fd, const void *buf, size_t count)
222 QEMU_WARN_UNUSED_RESULT;
223 void qemu_set_cloexec(int fd);
226 int qemu_add_child_watch(pid_t pid);
227 int qemu_eventfd(int pipefd[2]);
228 int qemu_pipe(int pipefd[2]);
231 /* Error handling. */
233 void QEMU_NORETURN hw_error(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
236 typedef void IOReadHandler(void *opaque, const uint8_t *buf, int size);
237 typedef int IOCanReadHandler(void *opaque);
238 typedef void IOHandler(void *opaque);
240 void qemu_iohandler_fill(int *pnfds, fd_set *readfds, fd_set *writefds, fd_set *xfds);
241 void qemu_iohandler_poll(fd_set *readfds, fd_set *writefds, fd_set *xfds, int rc);
243 struct ParallelIOArg {
248 typedef int (*DMA_transfer_handler) (void *opaque, int nchan, int pos, int size);
250 /* A load of opaque types so that device init declarations don't have to
251 pull in all the real definitions. */
252 typedef struct NICInfo NICInfo;
253 typedef struct HCIInfo HCIInfo;
254 typedef struct AudioState AudioState;
255 typedef struct BlockDriverState BlockDriverState;
256 typedef struct DriveInfo DriveInfo;
257 typedef struct DisplayState DisplayState;
258 typedef struct DisplayChangeListener DisplayChangeListener;
259 typedef struct DisplaySurface DisplaySurface;
260 typedef struct DisplayAllocator DisplayAllocator;
261 typedef struct PixelFormat PixelFormat;
262 typedef struct TextConsole TextConsole;
263 typedef TextConsole QEMUConsole;
264 typedef struct CharDriverState CharDriverState;
265 typedef struct MACAddr MACAddr;
266 typedef struct VLANState VLANState;
267 typedef struct VLANClientState VLANClientState;
268 typedef struct i2c_bus i2c_bus;
269 typedef struct i2c_slave i2c_slave;
270 typedef struct SMBusDevice SMBusDevice;
271 typedef struct PCIHostState PCIHostState;
272 typedef struct PCIExpressHost PCIExpressHost;
273 typedef struct PCIBus PCIBus;
274 typedef struct PCIDevice PCIDevice;
275 typedef struct PCIExpressDevice PCIExpressDevice;
276 typedef struct PCIBridge PCIBridge;
277 typedef struct PCIEAERMsg PCIEAERMsg;
278 typedef struct PCIEAERLog PCIEAERLog;
279 typedef struct PCIEAERErr PCIEAERErr;
280 typedef struct PCIEPort PCIEPort;
281 typedef struct PCIESlot PCIESlot;
282 typedef struct SerialState SerialState;
283 typedef struct IRQState *qemu_irq;
284 typedef struct PCMCIACardState PCMCIACardState;
285 typedef struct MouseTransformInfo MouseTransformInfo;
286 typedef struct uWireSlave uWireSlave;
287 typedef struct I2SCodec I2SCodec;
288 typedef struct SSIBus SSIBus;
289 typedef struct EventNotifier EventNotifier;
290 typedef struct VirtIODevice VirtIODevice;
292 typedef uint64_t pcibus_t;
294 void cpu_exec_init_all(unsigned long tb_size);
297 void cpu_save(QEMUFile *f, void *opaque);
298 int cpu_load(QEMUFile *f, void *opaque, int version_id);
300 /* Force QEMU to stop what it's doing and service IO */
301 void qemu_service_io(void);
303 /* Force QEMU to process pending events */
304 void qemu_notify_event(void);
307 void qemu_cpu_kick(void *env);
308 void qemu_cpu_kick_self(void);
309 int qemu_cpu_is_self(void *env);
310 bool all_cpu_threads_idle(void);
313 struct qemu_work_item {
314 struct qemu_work_item *next;
315 void (*func)(void *data);
320 #ifdef CONFIG_USER_ONLY
321 #define qemu_init_vcpu(env) do { } while (0)
323 void qemu_init_vcpu(void *env);
326 typedef struct QEMUIOVector {
333 void qemu_iovec_init(QEMUIOVector *qiov, int alloc_hint);
334 void qemu_iovec_init_external(QEMUIOVector *qiov, struct iovec *iov, int niov);
335 void qemu_iovec_add(QEMUIOVector *qiov, void *base, size_t len);
336 void qemu_iovec_copy(QEMUIOVector *dst, QEMUIOVector *src, uint64_t skip,
338 void qemu_iovec_concat(QEMUIOVector *dst, QEMUIOVector *src, size_t size);
339 void qemu_iovec_destroy(QEMUIOVector *qiov);
340 void qemu_iovec_reset(QEMUIOVector *qiov);
341 void qemu_iovec_to_buffer(QEMUIOVector *qiov, void *buf);
342 void qemu_iovec_from_buffer(QEMUIOVector *qiov, const void *buf, size_t count);
343 void qemu_iovec_memset(QEMUIOVector *qiov, int c, size_t count);
344 void qemu_iovec_memset_skip(QEMUIOVector *qiov, int c, size_t count,
347 void qemu_progress_init(int enabled, float min_skip);
348 void qemu_progress_end(void);
349 void qemu_progress_print(float percent, int max);
351 #define QEMU_FILE_TYPE_BIOS 0
352 #define QEMU_FILE_TYPE_KEYMAP 1
353 char *qemu_find_file(int type, const char *name);
355 /* OS specific functions */
356 void os_setup_early_signal_handling(void);
357 char *os_find_datadir(const char *argv0);
358 void os_parse_cmd_args(int index, const char *optarg);
359 void os_pidfile_error(void);
361 /* Convert a byte between binary and BCD. */
362 static inline uint8_t to_bcd(uint8_t val)
364 return ((val / 10) << 4) | (val % 10);
367 static inline uint8_t from_bcd(uint8_t val)
369 return ((val >> 4) * 10) + (val & 0x0f);
372 /* compute with 96 bit intermediate result: (a*b)/c */
373 static inline uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
378 #ifdef HOST_WORDS_BIGENDIAN
388 rl = (uint64_t)u.l.low * (uint64_t)b;
389 rh = (uint64_t)u.l.high * (uint64_t)b;
392 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;