2 /* Common header file that is included by all of qemu. */
7 #include "config-host.h"
9 #if defined(__arm__) || defined(__sparc__) || defined(__mips__) || defined(__hppa__) || defined(__ia64__)
13 #define TFR(expr) do { if ((expr) != -1) break; } while (errno == EINTR)
15 typedef struct QEMUTimer QEMUTimer;
16 typedef struct QEMUFile QEMUFile;
17 typedef struct QEMUBH QEMUBH;
18 typedef struct DeviceState DeviceState;
21 typedef struct Monitor Monitor;
22 typedef struct MigrationParams MigrationParams;
24 /* we put basic includes here to avoid repeating them in device drivers */
45 #include "qemu-os-win32.h"
49 #include "qemu-os-posix.h"
59 #define MAP_ANONYMOUS MAP_ANON
62 #define ENOMEDIUM ENODEV
67 #if !defined(ECANCELED)
68 #define ECANCELED 4097
71 #define TIME_MAX LONG_MAX
74 /* HOST_LONG_BITS is the size of a native pointer in bits. */
75 #if UINTPTR_MAX == UINT32_MAX
76 # define HOST_LONG_BITS 32
77 #elif UINTPTR_MAX == UINT64_MAX
78 # define HOST_LONG_BITS 64
80 # error Unknown pointer size
90 * Use the same value as Linux for now.
97 typedef int (*fprintf_function)(FILE *f, const char *fmt, ...)
101 #define fsync _commit
103 # define lseek _lseeki64
105 int qemu_ftruncate64(int, int64_t);
106 #if !defined(ftruncate)
107 # define ftruncate qemu_ftruncate64
110 static inline char *realpath(const char *path, char *resolved_path)
112 _fullpath(resolved_path, path, _MAX_PATH);
113 return resolved_path;
118 void configure_icount(const char *option);
119 extern int use_icount;
121 /* FIXME: Remove NEED_CPU_H. */
131 #endif /* !defined(NEED_CPU_H) */
133 /* main function, renamed */
134 #if defined(CONFIG_COCOA)
135 int qemu_main(int argc, char **argv, char **envp);
138 void qemu_get_timedate(struct tm *tm, int offset);
139 int qemu_timedate_diff(struct tm *tm);
145 * Check whether @s is one of the standard strings which indicate
146 * that the user is asking for a list of the valid values for a
147 * command option like -cpu or -M. The current accepted strings
148 * are 'help' and '?'. '?' is deprecated (it is a shell wildcard
149 * which makes it annoying to use in a reliable way) but provided
150 * for backwards compatibility.
152 * Returns: true if @s is a request for a list.
154 static inline bool is_help_option(const char *s)
156 return !strcmp(s, "?") || !strcmp(s, "help");
160 void pstrcpy(char *buf, int buf_size, const char *str);
161 void strpadcpy(char *buf, int buf_size, const char *str, char pad);
162 char *pstrcat(char *buf, int buf_size, const char *s);
163 int strstart(const char *str, const char *val, const char **ptr);
164 int stristart(const char *str, const char *val, const char **ptr);
165 int qemu_strnlen(const char *s, int max_len);
166 time_t mktimegm(struct tm *tm);
168 int qemu_fdatasync(int fd);
169 int fcntl_setfl(int fd, int flag);
170 int qemu_parse_fd(const char *param);
173 * strtosz() suffixes used to specify the default treatment of an
174 * argument passed to strtosz() without an explicit suffix.
175 * These should be defined using upper case characters in the range
176 * A-Z, as strtosz() will use qemu_toupper() on the given argument
177 * prior to comparison.
179 #define STRTOSZ_DEFSUFFIX_TB 'T'
180 #define STRTOSZ_DEFSUFFIX_GB 'G'
181 #define STRTOSZ_DEFSUFFIX_MB 'M'
182 #define STRTOSZ_DEFSUFFIX_KB 'K'
183 #define STRTOSZ_DEFSUFFIX_B 'B'
184 int64_t strtosz(const char *nptr, char **end);
185 int64_t strtosz_suffix(const char *nptr, char **end, const char default_suffix);
186 int64_t strtosz_suffix_unit(const char *nptr, char **end,
187 const char default_suffix, int64_t unit);
190 void init_paths(const char *prefix);
191 const char *path(const char *pathname);
193 #define qemu_isalnum(c) isalnum((unsigned char)(c))
194 #define qemu_isalpha(c) isalpha((unsigned char)(c))
195 #define qemu_iscntrl(c) iscntrl((unsigned char)(c))
196 #define qemu_isdigit(c) isdigit((unsigned char)(c))
197 #define qemu_isgraph(c) isgraph((unsigned char)(c))
198 #define qemu_islower(c) islower((unsigned char)(c))
199 #define qemu_isprint(c) isprint((unsigned char)(c))
200 #define qemu_ispunct(c) ispunct((unsigned char)(c))
201 #define qemu_isspace(c) isspace((unsigned char)(c))
202 #define qemu_isupper(c) isupper((unsigned char)(c))
203 #define qemu_isxdigit(c) isxdigit((unsigned char)(c))
204 #define qemu_tolower(c) tolower((unsigned char)(c))
205 #define qemu_toupper(c) toupper((unsigned char)(c))
206 #define qemu_isascii(c) isascii((unsigned char)(c))
207 #define qemu_toascii(c) toascii((unsigned char)(c))
209 void *qemu_oom_check(void *ptr);
211 int qemu_open(const char *name, int flags, ...);
212 int qemu_close(int fd);
213 ssize_t qemu_write_full(int fd, const void *buf, size_t count)
214 QEMU_WARN_UNUSED_RESULT;
215 ssize_t qemu_send_full(int fd, const void *buf, size_t count, int flags)
216 QEMU_WARN_UNUSED_RESULT;
217 ssize_t qemu_recv_full(int fd, void *buf, size_t count, int flags)
218 QEMU_WARN_UNUSED_RESULT;
221 int qemu_pipe(int pipefd[2]);
225 /* MinGW needs type casts for the 'buf' and 'optval' arguments. */
226 #define qemu_getsockopt(sockfd, level, optname, optval, optlen) \
227 getsockopt(sockfd, level, optname, (void *)optval, optlen)
228 #define qemu_setsockopt(sockfd, level, optname, optval, optlen) \
229 setsockopt(sockfd, level, optname, (const void *)optval, optlen)
230 #define qemu_recv(sockfd, buf, len, flags) recv(sockfd, (void *)buf, len, flags)
231 #define qemu_sendto(sockfd, buf, len, flags, destaddr, addrlen) \
232 sendto(sockfd, (const void *)buf, len, flags, destaddr, addrlen)
234 #define qemu_getsockopt(sockfd, level, optname, optval, optlen) \
235 getsockopt(sockfd, level, optname, optval, optlen)
236 #define qemu_setsockopt(sockfd, level, optname, optval, optlen) \
237 setsockopt(sockfd, level, optname, optval, optlen)
238 #define qemu_recv(sockfd, buf, len, flags) recv(sockfd, buf, len, flags)
239 #define qemu_sendto(sockfd, buf, len, flags, destaddr, addrlen) \
240 sendto(sockfd, buf, len, flags, destaddr, addrlen)
243 /* Error handling. */
245 void QEMU_NORETURN hw_error(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
247 struct ParallelIOArg {
252 typedef int (*DMA_transfer_handler) (void *opaque, int nchan, int pos, int size);
254 /* A load of opaque types so that device init declarations don't have to
255 pull in all the real definitions. */
256 typedef struct NICInfo NICInfo;
257 typedef struct HCIInfo HCIInfo;
258 typedef struct AudioState AudioState;
259 typedef struct BlockDriverState BlockDriverState;
260 typedef struct DriveInfo DriveInfo;
261 typedef struct DisplayState DisplayState;
262 typedef struct DisplayChangeListener DisplayChangeListener;
263 typedef struct DisplaySurface DisplaySurface;
264 typedef struct DisplayAllocator DisplayAllocator;
265 typedef struct PixelFormat PixelFormat;
266 typedef struct TextConsole TextConsole;
267 typedef TextConsole QEMUConsole;
268 typedef struct CharDriverState CharDriverState;
269 typedef struct MACAddr MACAddr;
270 typedef struct NetClientState NetClientState;
271 typedef struct i2c_bus i2c_bus;
272 typedef struct ISABus ISABus;
273 typedef struct ISADevice ISADevice;
274 typedef struct SMBusDevice SMBusDevice;
275 typedef struct PCIHostState PCIHostState;
276 typedef struct PCIExpressHost PCIExpressHost;
277 typedef struct PCIBus PCIBus;
278 typedef struct PCIDevice PCIDevice;
279 typedef struct PCIExpressDevice PCIExpressDevice;
280 typedef struct PCIBridge PCIBridge;
281 typedef struct PCIEAERMsg PCIEAERMsg;
282 typedef struct PCIEAERLog PCIEAERLog;
283 typedef struct PCIEAERErr PCIEAERErr;
284 typedef struct PCIEPort PCIEPort;
285 typedef struct PCIESlot PCIESlot;
286 typedef struct MSIMessage MSIMessage;
287 typedef struct SerialState SerialState;
288 typedef struct IRQState *qemu_irq;
289 typedef struct PCMCIACardState PCMCIACardState;
290 typedef struct MouseTransformInfo MouseTransformInfo;
291 typedef struct uWireSlave uWireSlave;
292 typedef struct I2SCodec I2SCodec;
293 typedef struct SSIBus SSIBus;
294 typedef struct EventNotifier EventNotifier;
295 typedef struct VirtIODevice VirtIODevice;
296 typedef struct QEMUSGList QEMUSGList;
297 typedef struct SHPCDevice SHPCDevice;
299 typedef uint64_t pcibus_t;
301 typedef enum LostTickPolicy {
309 typedef struct PCIHostDeviceAddress {
313 unsigned int function;
314 } PCIHostDeviceAddress;
316 void tcg_exec_init(unsigned long tb_size);
317 bool tcg_enabled(void);
319 void cpu_exec_init_all(void);
322 void cpu_save(QEMUFile *f, void *opaque);
323 int cpu_load(QEMUFile *f, void *opaque, int version_id);
326 void qemu_cpu_kick_self(void);
329 struct qemu_work_item {
330 struct qemu_work_item *next;
331 void (*func)(void *data);
336 #ifdef CONFIG_USER_ONLY
337 #define qemu_init_vcpu(env) do { } while (0)
339 void qemu_init_vcpu(void *env);
344 * Sends a (part of) iovec down a socket, yielding when the socket is full, or
345 * Receives data into a (part of) iovec from a socket,
346 * yielding when there is no data in the socket.
347 * The same interface as qemu_sendv_recvv(), with added yielding.
348 * XXX should mark these as coroutine_fn
350 ssize_t qemu_co_sendv_recvv(int sockfd, struct iovec *iov, unsigned iov_cnt,
351 size_t offset, size_t bytes, bool do_send);
352 #define qemu_co_recvv(sockfd, iov, iov_cnt, offset, bytes) \
353 qemu_co_sendv_recvv(sockfd, iov, iov_cnt, offset, bytes, false)
354 #define qemu_co_sendv(sockfd, iov, iov_cnt, offset, bytes) \
355 qemu_co_sendv_recvv(sockfd, iov, iov_cnt, offset, bytes, true)
358 * The same as above, but with just a single buffer
360 ssize_t qemu_co_send_recv(int sockfd, void *buf, size_t bytes, bool do_send);
361 #define qemu_co_recv(sockfd, buf, bytes) \
362 qemu_co_send_recv(sockfd, buf, bytes, false)
363 #define qemu_co_send(sockfd, buf, bytes) \
364 qemu_co_send_recv(sockfd, buf, bytes, true)
366 typedef struct QEMUIOVector {
373 void qemu_iovec_init(QEMUIOVector *qiov, int alloc_hint);
374 void qemu_iovec_init_external(QEMUIOVector *qiov, struct iovec *iov, int niov);
375 void qemu_iovec_add(QEMUIOVector *qiov, void *base, size_t len);
376 void qemu_iovec_concat(QEMUIOVector *dst,
377 QEMUIOVector *src, size_t soffset, size_t sbytes);
378 void qemu_iovec_destroy(QEMUIOVector *qiov);
379 void qemu_iovec_reset(QEMUIOVector *qiov);
380 size_t qemu_iovec_to_buf(QEMUIOVector *qiov, size_t offset,
381 void *buf, size_t bytes);
382 size_t qemu_iovec_from_buf(QEMUIOVector *qiov, size_t offset,
383 const void *buf, size_t bytes);
384 size_t qemu_iovec_memset(QEMUIOVector *qiov, size_t offset,
385 int fillc, size_t bytes);
387 bool buffer_is_zero(const void *buf, size_t len);
389 void qemu_progress_init(int enabled, float min_skip);
390 void qemu_progress_end(void);
391 void qemu_progress_print(float delta, int max);
392 const char *qemu_get_vm_name(void);
394 #define QEMU_FILE_TYPE_BIOS 0
395 #define QEMU_FILE_TYPE_KEYMAP 1
396 char *qemu_find_file(int type, const char *name);
398 /* OS specific functions */
399 void os_setup_early_signal_handling(void);
400 char *os_find_datadir(const char *argv0);
401 void os_parse_cmd_args(int index, const char *optarg);
402 void os_pidfile_error(void);
404 /* Convert a byte between binary and BCD. */
405 static inline uint8_t to_bcd(uint8_t val)
407 return ((val / 10) << 4) | (val % 10);
410 static inline uint8_t from_bcd(uint8_t val)
412 return ((val >> 4) * 10) + (val & 0x0f);
415 /* compute with 96 bit intermediate result: (a*b)/c */
416 static inline uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
421 #ifdef HOST_WORDS_BIGENDIAN
431 rl = (uint64_t)u.l.low * (uint64_t)b;
432 rh = (uint64_t)u.l.high * (uint64_t)b;
435 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
439 /* Round number down to multiple */
440 #define QEMU_ALIGN_DOWN(n, m) ((n) / (m) * (m))
442 /* Round number up to multiple */
443 #define QEMU_ALIGN_UP(n, m) QEMU_ALIGN_DOWN((n) + (m) - 1, (m))
445 static inline bool is_power_of_2(uint64_t value)
451 return !(value & (value - 1));
454 /* round down to the nearest power of 2*/
455 int64_t pow2floor(int64_t value);
460 * Implementation of ULEB128 (http://en.wikipedia.org/wiki/LEB128)
461 * Input is limited to 14-bit numbers
464 int uleb128_encode_small(uint8_t *out, uint32_t n);
465 int uleb128_decode_small(const uint8_t *in, uint32_t *n);