Skip to content
Newer
Older
100644 369 lines (315 sloc) 10.4 KB
68396ea @rmustacc Initial commit of d32e8d0b8d9e0ef7cf7ab2e74548982972789dfc from qemu-kvm
rmustacc authored Jun 24, 2011
1 /* Common header file that is included by all of qemu. */
2 #ifndef QEMU_COMMON_H
3 #define QEMU_COMMON_H
4
5 #include "config-host.h"
6
7 #define QEMU_NORETURN __attribute__ ((__noreturn__))
8 #ifdef CONFIG_GCC_ATTRIBUTE_WARN_UNUSED_RESULT
9 #define QEMU_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
10 #else
11 #define QEMU_WARN_UNUSED_RESULT
12 #endif
13
14 #define QEMU_BUILD_BUG_ON(x) typedef char __build_bug_on__##__LINE__[(x)?-1:1];
15
16 typedef struct QEMUTimer QEMUTimer;
17 typedef struct QEMUFile QEMUFile;
18 typedef struct QEMUBH QEMUBH;
19 typedef struct DeviceState DeviceState;
20
21 /* we put basic includes here to avoid repeating them in device drivers */
22 #include <stdlib.h>
23 #include <stdio.h>
24 #include <stdarg.h>
25 #include <stdbool.h>
26 #include <string.h>
27 #include <strings.h>
28 #include <inttypes.h>
29 #include <limits.h>
30 #include <time.h>
31 #include <ctype.h>
32 #include <errno.h>
33 #include <unistd.h>
34 #include <fcntl.h>
35 #include <sys/stat.h>
36 #include <assert.h>
37
38 #ifndef O_LARGEFILE
39 #define O_LARGEFILE 0
40 #endif
41 #ifndef O_BINARY
42 #define O_BINARY 0
43 #endif
44 #ifndef MAP_ANONYMOUS
45 #define MAP_ANONYMOUS MAP_ANON
46 #endif
47 #ifndef ENOMEDIUM
48 #define ENOMEDIUM ENODEV
49 #endif
50 #if !defined(ENOTSUP)
51 #define ENOTSUP 4096
52 #endif
53 #ifndef TIME_MAX
54 #define TIME_MAX LONG_MAX
55 #endif
56
57 #ifndef CONFIG_IOVEC
58 #define CONFIG_IOVEC
59 struct iovec {
60 void *iov_base;
61 size_t iov_len;
62 };
63 /*
64 * Use the same value as Linux for now.
65 */
66 #define IOV_MAX 1024
67 #else
68 #include <sys/uio.h>
69 #endif
70
71 #if defined __GNUC__
72 # if (__GNUC__ < 4) || \
73 defined(__GNUC_MINOR__) && (__GNUC__ == 4) && (__GNUC_MINOR__ < 4)
74 /* gcc versions before 4.4.x don't support gnu_printf, so use printf. */
75 # define GCC_ATTR __attribute__((__unused__, format(printf, 1, 2)))
76 # define GCC_FMT_ATTR(n, m) __attribute__((format(printf, n, m)))
77 # else
78 /* Use gnu_printf when supported (qemu uses standard format strings). */
79 # define GCC_ATTR __attribute__((__unused__, format(gnu_printf, 1, 2)))
80 # define GCC_FMT_ATTR(n, m) __attribute__((format(gnu_printf, n, m)))
81 # endif
82 #else
83 #define GCC_ATTR /**/
84 #define GCC_FMT_ATTR(n, m)
85 #endif
86
87 typedef int (*fprintf_function)(FILE *f, const char *fmt, ...)
88 GCC_FMT_ATTR(2, 3);
89
90 #ifdef _WIN32
91 #define fsync _commit
92 #define lseek _lseeki64
93 int qemu_ftruncate64(int, int64_t);
94 #define ftruncate qemu_ftruncate64
95
96 static inline char *realpath(const char *path, char *resolved_path)
97 {
98 _fullpath(resolved_path, path, _MAX_PATH);
99 return resolved_path;
100 }
101
102 #define PRId64 "I64d"
103 #define PRIx64 "I64x"
104 #define PRIu64 "I64u"
105 #define PRIo64 "I64o"
106 #endif
107
108 /* FIXME: Remove NEED_CPU_H. */
109 #ifndef NEED_CPU_H
110
111 #include <setjmp.h>
112 #include "osdep.h"
113 #include "bswap.h"
114
115 #else
116
117 #include "cpu.h"
118
119 #endif /* !defined(NEED_CPU_H) */
120
121 /* bottom halves */
122 typedef void QEMUBHFunc(void *opaque);
123
124 void async_context_push(void);
125 void async_context_pop(void);
126 int get_async_context_id(void);
127
128 QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque);
129 void qemu_bh_schedule(QEMUBH *bh);
130 /* Bottom halfs that are scheduled from a bottom half handler are instantly
131 * invoked. This can create an infinite loop if a bottom half handler
132 * schedules itself. qemu_bh_schedule_idle() avoids this infinite loop by
133 * ensuring that the bottom half isn't executed until the next main loop
134 * iteration.
135 */
136 void qemu_bh_schedule_idle(QEMUBH *bh);
137 void qemu_bh_cancel(QEMUBH *bh);
138 void qemu_bh_delete(QEMUBH *bh);
139 int qemu_bh_poll(void);
140 void qemu_bh_update_timeout(int *timeout);
141
142 void qemu_get_timedate(struct tm *tm, int offset);
143 int qemu_timedate_diff(struct tm *tm);
144
145 /* cutils.c */
146 void pstrcpy(char *buf, int buf_size, const char *str);
147 char *pstrcat(char *buf, int buf_size, const char *s);
148 int strstart(const char *str, const char *val, const char **ptr);
149 int stristart(const char *str, const char *val, const char **ptr);
150 int qemu_strnlen(const char *s, int max_len);
151 time_t mktimegm(struct tm *tm);
152 int qemu_fls(int i);
153 int qemu_fdatasync(int fd);
154 int fcntl_setfl(int fd, int flag);
155
156 /*
157 * strtosz() suffixes used to specify the default treatment of an
158 * argument passed to strtosz() without an explicit suffix.
159 * These should be defined using upper case characters in the range
160 * A-Z, as strtosz() will use qemu_toupper() on the given argument
161 * prior to comparison.
162 */
163 #define STRTOSZ_DEFSUFFIX_TB 'T'
164 #define STRTOSZ_DEFSUFFIX_GB 'G'
165 #define STRTOSZ_DEFSUFFIX_MB 'M'
166 #define STRTOSZ_DEFSUFFIX_KB 'K'
167 #define STRTOSZ_DEFSUFFIX_B 'B'
168 int64_t strtosz(const char *nptr, char **end);
169 int64_t strtosz_suffix(const char *nptr, char **end, const char default_suffix);
170
171 /* path.c */
172 void init_paths(const char *prefix);
173 const char *path(const char *pathname);
174
175 #define qemu_isalnum(c) isalnum((unsigned char)(c))
176 #define qemu_isalpha(c) isalpha((unsigned char)(c))
177 #define qemu_iscntrl(c) iscntrl((unsigned char)(c))
178 #define qemu_isdigit(c) isdigit((unsigned char)(c))
179 #define qemu_isgraph(c) isgraph((unsigned char)(c))
180 #define qemu_islower(c) islower((unsigned char)(c))
181 #define qemu_isprint(c) isprint((unsigned char)(c))
182 #define qemu_ispunct(c) ispunct((unsigned char)(c))
183 #define qemu_isspace(c) isspace((unsigned char)(c))
184 #define qemu_isupper(c) isupper((unsigned char)(c))
185 #define qemu_isxdigit(c) isxdigit((unsigned char)(c))
186 #define qemu_tolower(c) tolower((unsigned char)(c))
187 #define qemu_toupper(c) toupper((unsigned char)(c))
188 #define qemu_isascii(c) isascii((unsigned char)(c))
189 #define qemu_toascii(c) toascii((unsigned char)(c))
190
191 #ifdef _WIN32
192 /* ffs() in oslib-win32.c for WIN32, strings.h for the rest of the world */
193 int ffs(int i);
194 #endif
195
196 void *qemu_oom_check(void *ptr);
197 void *qemu_malloc(size_t size);
198 void *qemu_realloc(void *ptr, size_t size);
199 void *qemu_mallocz(size_t size);
200 void qemu_free(void *ptr);
201 char *qemu_strdup(const char *str);
202 char *qemu_strndup(const char *str, size_t size);
203
204 void qemu_mutex_lock_iothread(void);
205 void qemu_mutex_unlock_iothread(void);
206
207 int qemu_open(const char *name, int flags, ...);
208 ssize_t qemu_write_full(int fd, const void *buf, size_t count)
209 QEMU_WARN_UNUSED_RESULT;
210 void qemu_set_cloexec(int fd);
211
212 #ifndef _WIN32
213 int qemu_eventfd(int pipefd[2]);
214 int qemu_pipe(int pipefd[2]);
215 #endif
216
217 /* Error handling. */
218
219 void QEMU_NORETURN hw_error(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
220
221 /* IO callbacks. */
222 typedef void IOReadHandler(void *opaque, const uint8_t *buf, int size);
223 typedef int IOCanReadHandler(void *opaque);
224 typedef void IOHandler(void *opaque);
225
226 struct ParallelIOArg {
227 void *buffer;
228 int count;
229 };
230
231 typedef int (*DMA_transfer_handler) (void *opaque, int nchan, int pos, int size);
232
233 /* A load of opaque types so that device init declarations don't have to
234 pull in all the real definitions. */
235 typedef struct NICInfo NICInfo;
236 typedef struct HCIInfo HCIInfo;
237 typedef struct AudioState AudioState;
238 typedef struct BlockDriverState BlockDriverState;
239 typedef struct DriveInfo DriveInfo;
240 typedef struct DisplayState DisplayState;
241 typedef struct DisplayChangeListener DisplayChangeListener;
242 typedef struct DisplaySurface DisplaySurface;
243 typedef struct DisplayAllocator DisplayAllocator;
244 typedef struct PixelFormat PixelFormat;
245 typedef struct TextConsole TextConsole;
246 typedef TextConsole QEMUConsole;
247 typedef struct CharDriverState CharDriverState;
248 typedef struct MACAddr MACAddr;
249 typedef struct VLANState VLANState;
250 typedef struct VLANClientState VLANClientState;
251 typedef struct i2c_bus i2c_bus;
252 typedef struct i2c_slave i2c_slave;
253 typedef struct SMBusDevice SMBusDevice;
254 typedef struct PCIHostState PCIHostState;
255 typedef struct PCIExpressHost PCIExpressHost;
256 typedef struct PCIBus PCIBus;
257 typedef struct PCIDevice PCIDevice;
258 typedef struct PCIExpressDevice PCIExpressDevice;
259 typedef struct PCIBridge PCIBridge;
260 typedef struct PCIEAERMsg PCIEAERMsg;
261 typedef struct PCIEAERLog PCIEAERLog;
262 typedef struct PCIEAERErr PCIEAERErr;
263 typedef struct PCIEPort PCIEPort;
264 typedef struct PCIESlot PCIESlot;
265 typedef struct SerialState SerialState;
266 typedef struct IRQState *qemu_irq;
267 typedef struct PCMCIACardState PCMCIACardState;
268 typedef struct MouseTransformInfo MouseTransformInfo;
269 typedef struct uWireSlave uWireSlave;
270 typedef struct I2SCodec I2SCodec;
271 typedef struct SSIBus SSIBus;
272 typedef struct EventNotifier EventNotifier;
273 typedef struct VirtIODevice VirtIODevice;
274
275 typedef uint64_t pcibus_t;
276
277 void cpu_exec_init_all(unsigned long tb_size);
278
279 /* CPU save/load. */
280 void cpu_save(QEMUFile *f, void *opaque);
281 int cpu_load(QEMUFile *f, void *opaque, int version_id);
282
283 /* Force QEMU to stop what it's doing and service IO */
284 void qemu_service_io(void);
285
286 /* Force QEMU to process pending events */
287 void qemu_notify_event(void);
288
289 /* Unblock cpu */
290 void qemu_cpu_kick(void *env);
291 int qemu_cpu_self(void *env);
292
293 /* work queue */
294 struct qemu_work_item {
295 struct qemu_work_item *next;
296 void (*func)(void *data);
297 void *data;
298 int done;
299 };
300
301 #ifdef CONFIG_USER_ONLY
302 #define qemu_init_vcpu(env) do { } while (0)
303 #else
304 void qemu_init_vcpu(void *env);
305 #endif
306
307 typedef struct QEMUIOVector {
308 struct iovec *iov;
309 int niov;
310 int nalloc;
311 size_t size;
312 } QEMUIOVector;
313
314 void qemu_iovec_init(QEMUIOVector *qiov, int alloc_hint);
315 void qemu_iovec_init_external(QEMUIOVector *qiov, struct iovec *iov, int niov);
316 void qemu_iovec_add(QEMUIOVector *qiov, void *base, size_t len);
317 void qemu_iovec_copy(QEMUIOVector *dst, QEMUIOVector *src, uint64_t skip,
318 size_t size);
319 void qemu_iovec_concat(QEMUIOVector *dst, QEMUIOVector *src, size_t size);
320 void qemu_iovec_destroy(QEMUIOVector *qiov);
321 void qemu_iovec_reset(QEMUIOVector *qiov);
322 void qemu_iovec_to_buffer(QEMUIOVector *qiov, void *buf);
323 void qemu_iovec_from_buffer(QEMUIOVector *qiov, const void *buf, size_t count);
324 void qemu_iovec_memset(QEMUIOVector *qiov, int c, size_t count);
325 void qemu_iovec_memset_skip(QEMUIOVector *qiov, int c, size_t count,
326 size_t skip);
327
328 struct Monitor;
329 typedef struct Monitor Monitor;
330
331 /* Convert a byte between binary and BCD. */
332 static inline uint8_t to_bcd(uint8_t val)
333 {
334 return ((val / 10) << 4) | (val % 10);
335 }
336
337 static inline uint8_t from_bcd(uint8_t val)
338 {
339 return ((val >> 4) * 10) + (val & 0x0f);
340 }
341
342 /* compute with 96 bit intermediate result: (a*b)/c */
343 static inline uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
344 {
345 union {
346 uint64_t ll;
347 struct {
348 #ifdef HOST_WORDS_BIGENDIAN
349 uint32_t high, low;
350 #else
351 uint32_t low, high;
352 #endif
353 } l;
354 } u, res;
355 uint64_t rl, rh;
356
357 u.ll = a;
358 rl = (uint64_t)u.l.low * (uint64_t)b;
359 rh = (uint64_t)u.l.high * (uint64_t)b;
360 rh += (rl >> 32);
361 res.l.high = rh / c;
362 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
363 return res.ll;
364 }
365
366 #include "module.h"
367
368 #endif
Something went wrong with that request. Please try again.