1 /* Common header file that is included by all of qemu. */
6 #include "config-host.h"
8 #if defined(__arm__) || defined(__sparc__) || defined(__mips__) || defined(__hppa__) || defined(__ia64__)
12 #define TFR(expr) do { if ((expr) != -1) break; } while (errno == EINTR)
14 typedef struct QEMUTimer QEMUTimer;
15 typedef struct QEMUFile QEMUFile;
16 typedef struct DeviceState DeviceState;
19 typedef struct Monitor Monitor;
20 typedef struct MigrationParams MigrationParams;
22 /* we put basic includes here to avoid repeating them in device drivers */
43 #include "qemu-os-win32.h"
47 #include "qemu-os-posix.h"
57 #define MAP_ANONYMOUS MAP_ANON
60 #define ENOMEDIUM ENODEV
65 #if !defined(ECANCELED)
66 #define ECANCELED 4097
69 #define TIME_MAX LONG_MAX
72 /* HOST_LONG_BITS is the size of a native pointer in bits. */
73 #if UINTPTR_MAX == UINT32_MAX
74 # define HOST_LONG_BITS 32
75 #elif UINTPTR_MAX == UINT64_MAX
76 # define HOST_LONG_BITS 64
78 # error Unknown pointer size
88 * Use the same value as Linux for now.
95 typedef int (*fprintf_function)(FILE *f, const char *fmt, ...)
101 # define lseek _lseeki64
103 int qemu_ftruncate64(int, int64_t);
104 #if !defined(ftruncate)
105 # define ftruncate qemu_ftruncate64
108 static inline char *realpath(const char *path, char *resolved_path)
110 _fullpath(resolved_path, path, _MAX_PATH);
111 return resolved_path;
116 void configure_icount(const char *option);
117 extern int use_icount;
119 /* FIXME: Remove NEED_CPU_H. */
129 #endif /* !defined(NEED_CPU_H) */
131 /* main function, renamed */
132 #if defined(CONFIG_COCOA)
133 int qemu_main(int argc, char **argv, char **envp);
136 void qemu_get_timedate(struct tm *tm, int offset);
137 int qemu_timedate_diff(struct tm *tm);
140 void pstrcpy(char *buf, int buf_size, const char *str);
141 char *pstrcat(char *buf, int buf_size, const char *s);
142 int strstart(const char *str, const char *val, const char **ptr);
143 int stristart(const char *str, const char *val, const char **ptr);
144 int qemu_strnlen(const char *s, int max_len);
145 time_t mktimegm(struct tm *tm);
147 int qemu_fdatasync(int fd);
148 int fcntl_setfl(int fd, int flag);
149 int qemu_parse_fd(const char *param);
152 * strtosz() suffixes used to specify the default treatment of an
153 * argument passed to strtosz() without an explicit suffix.
154 * These should be defined using upper case characters in the range
155 * A-Z, as strtosz() will use qemu_toupper() on the given argument
156 * prior to comparison.
158 #define STRTOSZ_DEFSUFFIX_TB 'T'
159 #define STRTOSZ_DEFSUFFIX_GB 'G'
160 #define STRTOSZ_DEFSUFFIX_MB 'M'
161 #define STRTOSZ_DEFSUFFIX_KB 'K'
162 #define STRTOSZ_DEFSUFFIX_B 'B'
163 int64_t strtosz(const char *nptr, char **end);
164 int64_t strtosz_suffix(const char *nptr, char **end, const char default_suffix);
165 int64_t strtosz_suffix_unit(const char *nptr, char **end,
166 const char default_suffix, int64_t unit);
169 void init_paths(const char *prefix);
170 const char *path(const char *pathname);
172 #define qemu_isalnum(c) isalnum((unsigned char)(c))
173 #define qemu_isalpha(c) isalpha((unsigned char)(c))
174 #define qemu_iscntrl(c) iscntrl((unsigned char)(c))
175 #define qemu_isdigit(c) isdigit((unsigned char)(c))
176 #define qemu_isgraph(c) isgraph((unsigned char)(c))
177 #define qemu_islower(c) islower((unsigned char)(c))
178 #define qemu_isprint(c) isprint((unsigned char)(c))
179 #define qemu_ispunct(c) ispunct((unsigned char)(c))
180 #define qemu_isspace(c) isspace((unsigned char)(c))
181 #define qemu_isupper(c) isupper((unsigned char)(c))
182 #define qemu_isxdigit(c) isxdigit((unsigned char)(c))
183 #define qemu_tolower(c) tolower((unsigned char)(c))
184 #define qemu_toupper(c) toupper((unsigned char)(c))
185 #define qemu_isascii(c) isascii((unsigned char)(c))
186 #define qemu_toascii(c) toascii((unsigned char)(c))
188 void *qemu_oom_check(void *ptr);
190 int qemu_open(const char *name, int flags, ...);
191 ssize_t qemu_write_full(int fd, const void *buf, size_t count)
192 QEMU_WARN_UNUSED_RESULT;
193 ssize_t qemu_send_full(int fd, const void *buf, size_t count, int flags)
194 QEMU_WARN_UNUSED_RESULT;
195 ssize_t qemu_recv_full(int fd, void *buf, size_t count, int flags)
196 QEMU_WARN_UNUSED_RESULT;
199 int qemu_eventfd(int pipefd[2]);
200 int qemu_pipe(int pipefd[2]);
204 #define qemu_recv(sockfd, buf, len, flags) recv(sockfd, (void *)buf, len, flags)
206 #define qemu_recv(sockfd, buf, len, flags) recv(sockfd, buf, len, flags)
209 /* Error handling. */
211 void QEMU_NORETURN hw_error(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
213 struct ParallelIOArg {
218 typedef int (*DMA_transfer_handler) (void *opaque, int nchan, int pos, int size);
220 /* A load of opaque types so that device init declarations don't have to
221 pull in all the real definitions. */
222 typedef struct NICInfo NICInfo;
223 typedef struct HCIInfo HCIInfo;
224 typedef struct AudioState AudioState;
225 typedef struct BlockDriverState BlockDriverState;
226 typedef struct DriveInfo DriveInfo;
227 typedef struct DisplayState DisplayState;
228 typedef struct DisplayChangeListener DisplayChangeListener;
229 typedef struct DisplaySurface DisplaySurface;
230 typedef struct DisplayAllocator DisplayAllocator;
231 typedef struct PixelFormat PixelFormat;
232 typedef struct TextConsole TextConsole;
233 typedef TextConsole QEMUConsole;
234 typedef struct CharDriverState CharDriverState;
235 typedef struct MACAddr MACAddr;
236 typedef struct VLANState VLANState;
237 typedef struct VLANClientState VLANClientState;
238 typedef struct i2c_bus i2c_bus;
239 typedef struct ISABus ISABus;
240 typedef struct ISADevice ISADevice;
241 typedef struct SMBusDevice SMBusDevice;
242 typedef struct PCIHostState PCIHostState;
243 typedef struct PCIExpressHost PCIExpressHost;
244 typedef struct PCIBus PCIBus;
245 typedef struct PCIDevice PCIDevice;
246 typedef struct PCIExpressDevice PCIExpressDevice;
247 typedef struct PCIBridge PCIBridge;
248 typedef struct PCIEAERMsg PCIEAERMsg;
249 typedef struct PCIEAERLog PCIEAERLog;
250 typedef struct PCIEAERErr PCIEAERErr;
251 typedef struct PCIEPort PCIEPort;
252 typedef struct PCIESlot PCIESlot;
253 typedef struct MSIMessage MSIMessage;
254 typedef struct SerialState SerialState;
255 typedef struct IRQState *qemu_irq;
256 typedef struct PCMCIACardState PCMCIACardState;
257 typedef struct MouseTransformInfo MouseTransformInfo;
258 typedef struct uWireSlave uWireSlave;
259 typedef struct I2SCodec I2SCodec;
260 typedef struct SSIBus SSIBus;
261 typedef struct EventNotifier EventNotifier;
262 typedef struct VirtIODevice VirtIODevice;
263 typedef struct QEMUSGList QEMUSGList;
264 typedef struct SHPCDevice SHPCDevice;
266 typedef uint64_t pcibus_t;
268 typedef enum LostTickPolicy {
276 typedef struct PCIHostDeviceAddress {
280 unsigned int function;
281 } PCIHostDeviceAddress;
283 void tcg_exec_init(unsigned long tb_size);
284 bool tcg_enabled(void);
286 void cpu_exec_init_all(void);
289 void cpu_save(QEMUFile *f, void *opaque);
290 int cpu_load(QEMUFile *f, void *opaque, int version_id);
293 void qemu_cpu_kick(void *env);
294 void qemu_cpu_kick_self(void);
295 int qemu_cpu_is_self(void *env);
296 bool all_cpu_threads_idle(void);
299 struct qemu_work_item {
300 struct qemu_work_item *next;
301 void (*func)(void *data);
306 #ifdef CONFIG_USER_ONLY
307 #define qemu_init_vcpu(env) do { } while (0)
309 void qemu_init_vcpu(void *env);
314 * Sends a (part of) iovec down a socket, yielding when the socket is full, or
315 * Receives data into a (part of) iovec from a socket,
316 * yielding when there is no data in the socket.
317 * The same interface as qemu_sendv_recvv(), with added yielding.
318 * XXX should mark these as coroutine_fn
320 ssize_t qemu_co_sendv_recvv(int sockfd, struct iovec *iov, unsigned iov_cnt,
321 size_t offset, size_t bytes, bool do_send);
322 #define qemu_co_recvv(sockfd, iov, iov_cnt, offset, bytes) \
323 qemu_co_sendv_recvv(sockfd, iov, iov_cnt, offset, bytes, false)
324 #define qemu_co_sendv(sockfd, iov, iov_cnt, offset, bytes) \
325 qemu_co_sendv_recvv(sockfd, iov, iov_cnt, offset, bytes, true)
328 * The same as above, but with just a single buffer
330 ssize_t qemu_co_send_recv(int sockfd, void *buf, size_t bytes, bool do_send);
331 #define qemu_co_recv(sockfd, buf, bytes) \
332 qemu_co_send_recv(sockfd, buf, bytes, false)
333 #define qemu_co_send(sockfd, buf, bytes) \
334 qemu_co_send_recv(sockfd, buf, bytes, true)
336 typedef struct QEMUIOVector {
343 void qemu_iovec_init(QEMUIOVector *qiov, int alloc_hint);
344 void qemu_iovec_init_external(QEMUIOVector *qiov, struct iovec *iov, int niov);
345 void qemu_iovec_add(QEMUIOVector *qiov, void *base, size_t len);
346 void qemu_iovec_concat(QEMUIOVector *dst,
347 QEMUIOVector *src, size_t soffset, size_t sbytes);
348 void qemu_iovec_destroy(QEMUIOVector *qiov);
349 void qemu_iovec_reset(QEMUIOVector *qiov);
350 size_t qemu_iovec_to_buf(QEMUIOVector *qiov, size_t offset,
351 void *buf, size_t bytes);
352 size_t qemu_iovec_from_buf(QEMUIOVector *qiov, size_t offset,
353 const void *buf, size_t bytes);
354 size_t qemu_iovec_memset(QEMUIOVector *qiov, size_t offset,
355 int fillc, size_t bytes);
357 bool buffer_is_zero(const void *buf, size_t len);
359 void qemu_progress_init(int enabled, float min_skip);
360 void qemu_progress_end(void);
361 void qemu_progress_print(float delta, int max);
363 #define QEMU_FILE_TYPE_BIOS 0
364 #define QEMU_FILE_TYPE_KEYMAP 1
365 char *qemu_find_file(int type, const char *name);
367 /* OS specific functions */
368 void os_setup_early_signal_handling(void);
369 char *os_find_datadir(const char *argv0);
370 void os_parse_cmd_args(int index, const char *optarg);
371 void os_pidfile_error(void);
373 /* Convert a byte between binary and BCD. */
374 static inline uint8_t to_bcd(uint8_t val)
376 return ((val / 10) << 4) | (val % 10);
379 static inline uint8_t from_bcd(uint8_t val)
381 return ((val >> 4) * 10) + (val & 0x0f);
384 /* compute with 96 bit intermediate result: (a*b)/c */
385 static inline uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
390 #ifdef HOST_WORDS_BIGENDIAN
400 rl = (uint64_t)u.l.low * (uint64_t)b;
401 rh = (uint64_t)u.l.high * (uint64_t)b;
404 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
408 /* Round number down to multiple */
409 #define QEMU_ALIGN_DOWN(n, m) ((n) / (m) * (m))
411 /* Round number up to multiple */
412 #define QEMU_ALIGN_UP(n, m) QEMU_ALIGN_DOWN((n) + (m) - 1, (m))