root / qemu-common.h @ e0d9c6f9
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/* Common header file that is included by all of qemu. */
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#ifndef QEMU_COMMON_H
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#define QEMU_COMMON_H
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#include "config-host.h" |
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#define QEMU_NORETURN __attribute__ ((__noreturn__))
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#ifdef CONFIG_GCC_ATTRIBUTE_WARN_UNUSED_RESULT
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#define QEMU_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
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#else
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#define QEMU_WARN_UNUSED_RESULT
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#endif
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#define QEMU_BUILD_BUG_ON(x) typedef char __build_bug_on__##__LINE__[(x)?-1:1]; |
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typedef struct QEMUTimer QEMUTimer; |
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typedef struct QEMUFile QEMUFile; |
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typedef struct QEMUBH QEMUBH; |
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typedef struct DeviceState DeviceState; |
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/* we put basic includes here to avoid repeating them in device drivers */
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#include <stdlib.h> |
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#include <stdio.h> |
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#include <stdarg.h> |
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#include <stdbool.h> |
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#include <string.h> |
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#include <strings.h> |
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#include <inttypes.h> |
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#include <limits.h> |
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#include <time.h> |
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#include <ctype.h> |
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#include <errno.h> |
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#include <unistd.h> |
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#include <fcntl.h> |
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#include <sys/stat.h> |
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#include <assert.h> |
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#ifndef O_LARGEFILE
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#define O_LARGEFILE 0 |
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#endif
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#ifndef O_BINARY
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#define O_BINARY 0 |
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#endif
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#ifndef MAP_ANONYMOUS
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#define MAP_ANONYMOUS MAP_ANON
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#endif
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#ifndef ENOMEDIUM
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#define ENOMEDIUM ENODEV
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#endif
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#if !defined(ENOTSUP)
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#define ENOTSUP 4096 |
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#endif
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#ifndef TIME_MAX
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#define TIME_MAX LONG_MAX
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#endif
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#ifndef CONFIG_IOVEC
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#define CONFIG_IOVEC
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struct iovec {
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void *iov_base;
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size_t iov_len; |
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}; |
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/*
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* Use the same value as Linux for now.
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*/
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#define IOV_MAX 1024 |
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#else
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#include <sys/uio.h> |
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#endif
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#if defined __GNUC__
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# if (__GNUC__ < 4) || \ |
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defined(__GNUC_MINOR__) && (__GNUC__ == 4) && (__GNUC_MINOR__ < 4) |
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/* gcc versions before 4.4.x don't support gnu_printf, so use printf. */
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# define GCC_ATTR __attribute__((__unused__, format(printf, 1, 2))) |
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# define GCC_FMT_ATTR(n, m) __attribute__((format(printf, n, m)))
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# else
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/* Use gnu_printf when supported (qemu uses standard format strings). */
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# define GCC_ATTR __attribute__((__unused__, format(gnu_printf, 1, 2))) |
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# define GCC_FMT_ATTR(n, m) __attribute__((format(gnu_printf, n, m)))
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# endif
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#else
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#define GCC_ATTR /**/ |
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#define GCC_FMT_ATTR(n, m)
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#endif
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typedef int (*fprintf_function)(FILE *f, const char *fmt, ...) |
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GCC_FMT_ATTR(2, 3); |
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#ifdef _WIN32
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#define fsync _commit
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#define lseek _lseeki64
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int qemu_ftruncate64(int, int64_t); |
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#define ftruncate qemu_ftruncate64
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static inline char *realpath(const char *path, char *resolved_path) |
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{ |
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_fullpath(resolved_path, path, _MAX_PATH); |
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return resolved_path;
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} |
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#define PRId64 "I64d" |
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#define PRIx64 "I64x" |
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#define PRIu64 "I64u" |
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#define PRIo64 "I64o" |
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#endif
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/* FIXME: Remove NEED_CPU_H. */
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#ifndef NEED_CPU_H
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#include <setjmp.h> |
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#include "osdep.h" |
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#include "bswap.h" |
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#else
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#include "cpu.h" |
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#endif /* !defined(NEED_CPU_H) */ |
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/* bottom halves */
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typedef void QEMUBHFunc(void *opaque); |
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void async_context_push(void); |
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void async_context_pop(void); |
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int get_async_context_id(void); |
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QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque);
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void qemu_bh_schedule(QEMUBH *bh);
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/* Bottom halfs that are scheduled from a bottom half handler are instantly
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* invoked. This can create an infinite loop if a bottom half handler
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* schedules itself. qemu_bh_schedule_idle() avoids this infinite loop by
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* ensuring that the bottom half isn't executed until the next main loop
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* iteration.
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*/
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void qemu_bh_schedule_idle(QEMUBH *bh);
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void qemu_bh_cancel(QEMUBH *bh);
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void qemu_bh_delete(QEMUBH *bh);
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int qemu_bh_poll(void); |
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void qemu_bh_update_timeout(int *timeout); |
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void qemu_get_timedate(struct tm *tm, int offset); |
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int qemu_timedate_diff(struct tm *tm); |
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/* cutils.c */
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void pstrcpy(char *buf, int buf_size, const char *str); |
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char *pstrcat(char *buf, int buf_size, const char *s); |
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int strstart(const char *str, const char *val, const char **ptr); |
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int stristart(const char *str, const char *val, const char **ptr); |
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int qemu_strnlen(const char *s, int max_len); |
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time_t mktimegm(struct tm *tm);
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int qemu_fls(int i); |
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int qemu_fdatasync(int fd); |
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int fcntl_setfl(int fd, int flag); |
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/*
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* strtosz() suffixes used to specify the default treatment of an
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* argument passed to strtosz() without an explicit suffix.
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* These should be defined using upper case characters in the range
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* A-Z, as strtosz() will use qemu_toupper() on the given argument
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* prior to comparison.
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*/
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#define STRTOSZ_DEFSUFFIX_TB 'T' |
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#define STRTOSZ_DEFSUFFIX_GB 'G' |
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#define STRTOSZ_DEFSUFFIX_MB 'M' |
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#define STRTOSZ_DEFSUFFIX_KB 'K' |
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#define STRTOSZ_DEFSUFFIX_B 'B' |
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int64_t strtosz(const char *nptr, char **end); |
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int64_t strtosz_suffix(const char *nptr, char **end, const char default_suffix); |
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/* path.c */
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void init_paths(const char *prefix); |
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const char *path(const char *pathname); |
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#define qemu_isalnum(c) isalnum((unsigned char)(c)) |
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#define qemu_isalpha(c) isalpha((unsigned char)(c)) |
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#define qemu_iscntrl(c) iscntrl((unsigned char)(c)) |
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#define qemu_isdigit(c) isdigit((unsigned char)(c)) |
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#define qemu_isgraph(c) isgraph((unsigned char)(c)) |
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#define qemu_islower(c) islower((unsigned char)(c)) |
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#define qemu_isprint(c) isprint((unsigned char)(c)) |
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#define qemu_ispunct(c) ispunct((unsigned char)(c)) |
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#define qemu_isspace(c) isspace((unsigned char)(c)) |
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#define qemu_isupper(c) isupper((unsigned char)(c)) |
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#define qemu_isxdigit(c) isxdigit((unsigned char)(c)) |
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#define qemu_tolower(c) tolower((unsigned char)(c)) |
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#define qemu_toupper(c) toupper((unsigned char)(c)) |
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#define qemu_isascii(c) isascii((unsigned char)(c)) |
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#define qemu_toascii(c) toascii((unsigned char)(c)) |
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#ifdef _WIN32
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/* ffs() in oslib-win32.c for WIN32, strings.h for the rest of the world */
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int ffs(int i); |
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#endif
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void *qemu_oom_check(void *ptr); |
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void *qemu_malloc(size_t size);
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void *qemu_realloc(void *ptr, size_t size); |
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void *qemu_mallocz(size_t size);
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void qemu_free(void *ptr); |
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char *qemu_strdup(const char *str); |
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char *qemu_strndup(const char *str, size_t size); |
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void qemu_mutex_lock_iothread(void); |
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void qemu_mutex_unlock_iothread(void); |
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int qemu_open(const char *name, int flags, ...); |
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ssize_t qemu_write_full(int fd, const void *buf, size_t count) |
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QEMU_WARN_UNUSED_RESULT; |
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void qemu_set_cloexec(int fd); |
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#ifndef _WIN32
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int qemu_eventfd(int pipefd[2]); |
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int qemu_pipe(int pipefd[2]); |
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#endif
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/* Error handling. */
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void QEMU_NORETURN hw_error(const char *fmt, ...) GCC_FMT_ATTR(1, 2); |
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/* IO callbacks. */
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typedef void IOReadHandler(void *opaque, const uint8_t *buf, int size); |
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typedef int IOCanReadHandler(void *opaque); |
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typedef void IOHandler(void *opaque); |
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struct ParallelIOArg {
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void *buffer;
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int count;
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}; |
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typedef int (*DMA_transfer_handler) (void *opaque, int nchan, int pos, int size); |
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/* A load of opaque types so that device init declarations don't have to
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pull in all the real definitions. */
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typedef struct NICInfo NICInfo; |
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typedef struct HCIInfo HCIInfo; |
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typedef struct AudioState AudioState; |
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typedef struct BlockDriverState BlockDriverState; |
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typedef struct DriveInfo DriveInfo; |
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typedef struct DisplayState DisplayState; |
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typedef struct DisplayChangeListener DisplayChangeListener; |
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typedef struct DisplaySurface DisplaySurface; |
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typedef struct DisplayAllocator DisplayAllocator; |
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typedef struct PixelFormat PixelFormat; |
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typedef struct TextConsole TextConsole; |
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typedef TextConsole QEMUConsole;
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typedef struct CharDriverState CharDriverState; |
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typedef struct MACAddr MACAddr; |
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typedef struct VLANState VLANState; |
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typedef struct VLANClientState VLANClientState; |
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typedef struct i2c_bus i2c_bus; |
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typedef struct i2c_slave i2c_slave; |
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typedef struct SMBusDevice SMBusDevice; |
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typedef struct PCIHostState PCIHostState; |
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typedef struct PCIExpressHost PCIExpressHost; |
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typedef struct PCIBus PCIBus; |
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typedef struct PCIDevice PCIDevice; |
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typedef struct PCIExpressDevice PCIExpressDevice; |
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typedef struct PCIBridge PCIBridge; |
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typedef struct PCIEAERMsg PCIEAERMsg; |
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typedef struct PCIEAERLog PCIEAERLog; |
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typedef struct PCIEAERErr PCIEAERErr; |
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typedef struct PCIEPort PCIEPort; |
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typedef struct PCIESlot PCIESlot; |
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typedef struct SerialState SerialState; |
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typedef struct IRQState *qemu_irq; |
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typedef struct PCMCIACardState PCMCIACardState; |
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typedef struct MouseTransformInfo MouseTransformInfo; |
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typedef struct uWireSlave uWireSlave; |
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typedef struct I2SCodec I2SCodec; |
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typedef struct SSIBus SSIBus; |
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typedef struct EventNotifier EventNotifier; |
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typedef struct VirtIODevice VirtIODevice; |
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typedef uint64_t pcibus_t;
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void cpu_exec_init_all(unsigned long tb_size); |
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/* CPU save/load. */
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void cpu_save(QEMUFile *f, void *opaque); |
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int cpu_load(QEMUFile *f, void *opaque, int version_id); |
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/* Force QEMU to stop what it's doing and service IO */
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void qemu_service_io(void); |
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/* Force QEMU to process pending events */
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void qemu_notify_event(void); |
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/* Unblock cpu */
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void qemu_cpu_kick(void *env); |
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int qemu_cpu_self(void *env); |
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/* work queue */
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struct qemu_work_item {
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struct qemu_work_item *next;
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void (*func)(void *data); |
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void *data;
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int done;
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}; |
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#ifdef CONFIG_USER_ONLY
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#define qemu_init_vcpu(env) do { } while (0) |
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#else
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void qemu_init_vcpu(void *env); |
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#endif
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typedef struct QEMUIOVector { |
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struct iovec *iov;
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int niov;
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int nalloc;
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size_t size; |
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} QEMUIOVector; |
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void qemu_iovec_init(QEMUIOVector *qiov, int alloc_hint); |
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void qemu_iovec_init_external(QEMUIOVector *qiov, struct iovec *iov, int niov); |
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void qemu_iovec_add(QEMUIOVector *qiov, void *base, size_t len); |
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void qemu_iovec_copy(QEMUIOVector *dst, QEMUIOVector *src, uint64_t skip,
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size_t size); |
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void qemu_iovec_concat(QEMUIOVector *dst, QEMUIOVector *src, size_t size);
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void qemu_iovec_destroy(QEMUIOVector *qiov);
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void qemu_iovec_reset(QEMUIOVector *qiov);
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void qemu_iovec_to_buffer(QEMUIOVector *qiov, void *buf); |
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void qemu_iovec_from_buffer(QEMUIOVector *qiov, const void *buf, size_t count); |
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void qemu_iovec_memset(QEMUIOVector *qiov, int c, size_t count); |
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void qemu_iovec_memset_skip(QEMUIOVector *qiov, int c, size_t count, |
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size_t skip); |
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struct Monitor;
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typedef struct Monitor Monitor; |
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/* Convert a byte between binary and BCD. */
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static inline uint8_t to_bcd(uint8_t val) |
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{ |
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return ((val / 10) << 4) | (val % 10); |
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} |
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static inline uint8_t from_bcd(uint8_t val) |
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{ |
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return ((val >> 4) * 10) + (val & 0x0f); |
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} |
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/* compute with 96 bit intermediate result: (a*b)/c */
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static inline uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c) |
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{ |
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union {
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uint64_t ll; |
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struct {
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#ifdef HOST_WORDS_BIGENDIAN
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uint32_t high, low; |
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#else
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uint32_t low, high; |
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#endif
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} l; |
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} u, res; |
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uint64_t rl, rh; |
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u.ll = a; |
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rl = (uint64_t)u.l.low * (uint64_t)b; |
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rh = (uint64_t)u.l.high * (uint64_t)b; |
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rh += (rl >> 32);
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res.l.high = rh / c; |
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res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c; |
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return res.ll;
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} |
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#include "module.h" |
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#endif
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