File:  [Qemu by Fabrice Bellard] / qemu / qemu-common.h
Revision 1.1.1.10 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 19:17:10 2018 UTC (2 years, 11 months ago) by root
Branches: qemu, MAIN
CVS tags: qemu1001, HEAD
qemu 1.0.1

    1: /* Common header file that is included by all of qemu.  */
    2: #ifndef QEMU_COMMON_H
    3: #define QEMU_COMMON_H
    4: 
    5: #include "compiler.h"
    6: #include "config-host.h"
    7: 
    8: #if defined(__arm__) || defined(__sparc__) || defined(__mips__) || defined(__hppa__) || defined(__ia64__)
    9: #define WORDS_ALIGNED
   10: #endif
   11: 
   12: #define TFR(expr) do { if ((expr) != -1) break; } while (errno == EINTR)
   13: 
   14: typedef struct QEMUTimer QEMUTimer;
   15: typedef struct QEMUFile QEMUFile;
   16: typedef struct DeviceState DeviceState;
   17: 
   18: struct Monitor;
   19: typedef struct Monitor Monitor;
   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 <sys/time.h>
   37: #include <assert.h>
   38: #include <signal.h>
   39: #include <glib.h>
   40: 
   41: #ifdef _WIN32
   42: #include "qemu-os-win32.h"
   43: #endif
   44: 
   45: #ifdef CONFIG_POSIX
   46: #include "qemu-os-posix.h"
   47: #endif
   48: 
   49: #ifndef O_LARGEFILE
   50: #define O_LARGEFILE 0
   51: #endif
   52: #ifndef O_BINARY
   53: #define O_BINARY 0
   54: #endif
   55: #ifndef MAP_ANONYMOUS
   56: #define MAP_ANONYMOUS MAP_ANON
   57: #endif
   58: #ifndef ENOMEDIUM
   59: #define ENOMEDIUM ENODEV
   60: #endif
   61: #if !defined(ENOTSUP)
   62: #define ENOTSUP 4096
   63: #endif
   64: #ifndef TIME_MAX
   65: #define TIME_MAX LONG_MAX
   66: #endif
   67: 
   68: #ifndef CONFIG_IOVEC
   69: #define CONFIG_IOVEC
   70: struct iovec {
   71:     void *iov_base;
   72:     size_t iov_len;
   73: };
   74: /*
   75:  * Use the same value as Linux for now.
   76:  */
   77: #define IOV_MAX		1024
   78: #else
   79: #include <sys/uio.h>
   80: #endif
   81: 
   82: typedef int (*fprintf_function)(FILE *f, const char *fmt, ...)
   83:     GCC_FMT_ATTR(2, 3);
   84: 
   85: #ifdef _WIN32
   86: #define fsync _commit
   87: #define lseek _lseeki64
   88: int qemu_ftruncate64(int, int64_t);
   89: #define ftruncate qemu_ftruncate64
   90: 
   91: static inline char *realpath(const char *path, char *resolved_path)
   92: {
   93:     _fullpath(resolved_path, path, _MAX_PATH);
   94:     return resolved_path;
   95: }
   96: #endif
   97: 
   98: /* icount */
   99: void configure_icount(const char *option);
  100: extern int use_icount;
  101: 
  102: /* FIXME: Remove NEED_CPU_H.  */
  103: #ifndef NEED_CPU_H
  104: 
  105: #include "osdep.h"
  106: #include "bswap.h"
  107: 
  108: #else
  109: 
  110: #include "cpu.h"
  111: 
  112: #endif /* !defined(NEED_CPU_H) */
  113: 
  114: /* main function, renamed */
  115: #if defined(CONFIG_COCOA)
  116: int qemu_main(int argc, char **argv, char **envp);
  117: #endif
  118: 
  119: void qemu_get_timedate(struct tm *tm, int offset);
  120: int qemu_timedate_diff(struct tm *tm);
  121: 
  122: /* cutils.c */
  123: void pstrcpy(char *buf, int buf_size, const char *str);
  124: char *pstrcat(char *buf, int buf_size, const char *s);
  125: int strstart(const char *str, const char *val, const char **ptr);
  126: int stristart(const char *str, const char *val, const char **ptr);
  127: int qemu_strnlen(const char *s, int max_len);
  128: time_t mktimegm(struct tm *tm);
  129: int qemu_fls(int i);
  130: int qemu_fdatasync(int fd);
  131: int fcntl_setfl(int fd, int flag);
  132: int qemu_parse_fd(const char *param);
  133: 
  134: /*
  135:  * strtosz() suffixes used to specify the default treatment of an
  136:  * argument passed to strtosz() without an explicit suffix.
  137:  * These should be defined using upper case characters in the range
  138:  * A-Z, as strtosz() will use qemu_toupper() on the given argument
  139:  * prior to comparison.
  140:  */
  141: #define STRTOSZ_DEFSUFFIX_TB	'T'
  142: #define STRTOSZ_DEFSUFFIX_GB	'G'
  143: #define STRTOSZ_DEFSUFFIX_MB	'M'
  144: #define STRTOSZ_DEFSUFFIX_KB	'K'
  145: #define STRTOSZ_DEFSUFFIX_B	'B'
  146: int64_t strtosz(const char *nptr, char **end);
  147: int64_t strtosz_suffix(const char *nptr, char **end, const char default_suffix);
  148: int64_t strtosz_suffix_unit(const char *nptr, char **end,
  149:                             const char default_suffix, int64_t unit);
  150: 
  151: /* path.c */
  152: void init_paths(const char *prefix);
  153: const char *path(const char *pathname);
  154: 
  155: #define qemu_isalnum(c)		isalnum((unsigned char)(c))
  156: #define qemu_isalpha(c)		isalpha((unsigned char)(c))
  157: #define qemu_iscntrl(c)		iscntrl((unsigned char)(c))
  158: #define qemu_isdigit(c)		isdigit((unsigned char)(c))
  159: #define qemu_isgraph(c)		isgraph((unsigned char)(c))
  160: #define qemu_islower(c)		islower((unsigned char)(c))
  161: #define qemu_isprint(c)		isprint((unsigned char)(c))
  162: #define qemu_ispunct(c)		ispunct((unsigned char)(c))
  163: #define qemu_isspace(c)		isspace((unsigned char)(c))
  164: #define qemu_isupper(c)		isupper((unsigned char)(c))
  165: #define qemu_isxdigit(c)	isxdigit((unsigned char)(c))
  166: #define qemu_tolower(c)		tolower((unsigned char)(c))
  167: #define qemu_toupper(c)		toupper((unsigned char)(c))
  168: #define qemu_isascii(c)		isascii((unsigned char)(c))
  169: #define qemu_toascii(c)		toascii((unsigned char)(c))
  170: 
  171: void *qemu_oom_check(void *ptr);
  172: 
  173: int qemu_open(const char *name, int flags, ...);
  174: ssize_t qemu_write_full(int fd, const void *buf, size_t count)
  175:     QEMU_WARN_UNUSED_RESULT;
  176: void qemu_set_cloexec(int fd);
  177: 
  178: #ifndef _WIN32
  179: int qemu_eventfd(int pipefd[2]);
  180: int qemu_pipe(int pipefd[2]);
  181: #endif
  182: 
  183: #ifdef _WIN32
  184: #define qemu_recv(sockfd, buf, len, flags) recv(sockfd, (void *)buf, len, flags)
  185: #else
  186: #define qemu_recv(sockfd, buf, len, flags) recv(sockfd, buf, len, flags)
  187: #endif
  188: 
  189: /* Error handling.  */
  190: 
  191: void QEMU_NORETURN hw_error(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
  192: 
  193: struct ParallelIOArg {
  194:     void *buffer;
  195:     int count;
  196: };
  197: 
  198: typedef int (*DMA_transfer_handler) (void *opaque, int nchan, int pos, int size);
  199: 
  200: /* A load of opaque types so that device init declarations don't have to
  201:    pull in all the real definitions.  */
  202: typedef struct NICInfo NICInfo;
  203: typedef struct HCIInfo HCIInfo;
  204: typedef struct AudioState AudioState;
  205: typedef struct BlockDriverState BlockDriverState;
  206: typedef struct DriveInfo DriveInfo;
  207: typedef struct DisplayState DisplayState;
  208: typedef struct DisplayChangeListener DisplayChangeListener;
  209: typedef struct DisplaySurface DisplaySurface;
  210: typedef struct DisplayAllocator DisplayAllocator;
  211: typedef struct PixelFormat PixelFormat;
  212: typedef struct TextConsole TextConsole;
  213: typedef TextConsole QEMUConsole;
  214: typedef struct CharDriverState CharDriverState;
  215: typedef struct MACAddr MACAddr;
  216: typedef struct VLANState VLANState;
  217: typedef struct VLANClientState VLANClientState;
  218: typedef struct i2c_bus i2c_bus;
  219: typedef struct i2c_slave i2c_slave;
  220: typedef struct SMBusDevice SMBusDevice;
  221: typedef struct PCIHostState PCIHostState;
  222: typedef struct PCIExpressHost PCIExpressHost;
  223: typedef struct PCIBus PCIBus;
  224: typedef struct PCIDevice PCIDevice;
  225: typedef struct PCIExpressDevice PCIExpressDevice;
  226: typedef struct PCIBridge PCIBridge;
  227: typedef struct PCIEAERMsg PCIEAERMsg;
  228: typedef struct PCIEAERLog PCIEAERLog;
  229: typedef struct PCIEAERErr PCIEAERErr;
  230: typedef struct PCIEPort PCIEPort;
  231: typedef struct PCIESlot PCIESlot;
  232: typedef struct SerialState SerialState;
  233: typedef struct IRQState *qemu_irq;
  234: typedef struct PCMCIACardState PCMCIACardState;
  235: typedef struct MouseTransformInfo MouseTransformInfo;
  236: typedef struct uWireSlave uWireSlave;
  237: typedef struct I2SCodec I2SCodec;
  238: typedef struct SSIBus SSIBus;
  239: typedef struct EventNotifier EventNotifier;
  240: typedef struct VirtIODevice VirtIODevice;
  241: typedef struct QEMUSGList QEMUSGList;
  242: 
  243: typedef uint64_t pcibus_t;
  244: 
  245: void tcg_exec_init(unsigned long tb_size);
  246: bool tcg_enabled(void);
  247: 
  248: void cpu_exec_init_all(void);
  249: 
  250: /* CPU save/load.  */
  251: void cpu_save(QEMUFile *f, void *opaque);
  252: int cpu_load(QEMUFile *f, void *opaque, int version_id);
  253: 
  254: /* Unblock cpu */
  255: void qemu_cpu_kick(void *env);
  256: void qemu_cpu_kick_self(void);
  257: int qemu_cpu_is_self(void *env);
  258: bool all_cpu_threads_idle(void);
  259: 
  260: /* work queue */
  261: struct qemu_work_item {
  262:     struct qemu_work_item *next;
  263:     void (*func)(void *data);
  264:     void *data;
  265:     int done;
  266: };
  267: 
  268: #ifdef CONFIG_USER_ONLY
  269: #define qemu_init_vcpu(env) do { } while (0)
  270: #else
  271: void qemu_init_vcpu(void *env);
  272: #endif
  273: 
  274: typedef struct QEMUIOVector {
  275:     struct iovec *iov;
  276:     int niov;
  277:     int nalloc;
  278:     size_t size;
  279: } QEMUIOVector;
  280: 
  281: void qemu_iovec_init(QEMUIOVector *qiov, int alloc_hint);
  282: void qemu_iovec_init_external(QEMUIOVector *qiov, struct iovec *iov, int niov);
  283: void qemu_iovec_add(QEMUIOVector *qiov, void *base, size_t len);
  284: void qemu_iovec_copy(QEMUIOVector *dst, QEMUIOVector *src, uint64_t skip,
  285:     size_t size);
  286: void qemu_iovec_concat(QEMUIOVector *dst, QEMUIOVector *src, size_t size);
  287: void qemu_iovec_destroy(QEMUIOVector *qiov);
  288: void qemu_iovec_reset(QEMUIOVector *qiov);
  289: void qemu_iovec_to_buffer(QEMUIOVector *qiov, void *buf);
  290: void qemu_iovec_from_buffer(QEMUIOVector *qiov, const void *buf, size_t count);
  291: void qemu_iovec_memset(QEMUIOVector *qiov, int c, size_t count);
  292: void qemu_iovec_memset_skip(QEMUIOVector *qiov, int c, size_t count,
  293:                             size_t skip);
  294: 
  295: void qemu_progress_init(int enabled, float min_skip);
  296: void qemu_progress_end(void);
  297: void qemu_progress_print(float delta, int max);
  298: 
  299: #define QEMU_FILE_TYPE_BIOS   0
  300: #define QEMU_FILE_TYPE_KEYMAP 1
  301: char *qemu_find_file(int type, const char *name);
  302: 
  303: /* OS specific functions */
  304: void os_setup_early_signal_handling(void);
  305: char *os_find_datadir(const char *argv0);
  306: void os_parse_cmd_args(int index, const char *optarg);
  307: void os_pidfile_error(void);
  308: 
  309: /* Convert a byte between binary and BCD.  */
  310: static inline uint8_t to_bcd(uint8_t val)
  311: {
  312:     return ((val / 10) << 4) | (val % 10);
  313: }
  314: 
  315: static inline uint8_t from_bcd(uint8_t val)
  316: {
  317:     return ((val >> 4) * 10) + (val & 0x0f);
  318: }
  319: 
  320: /* compute with 96 bit intermediate result: (a*b)/c */
  321: static inline uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
  322: {
  323:     union {
  324:         uint64_t ll;
  325:         struct {
  326: #ifdef HOST_WORDS_BIGENDIAN
  327:             uint32_t high, low;
  328: #else
  329:             uint32_t low, high;
  330: #endif
  331:         } l;
  332:     } u, res;
  333:     uint64_t rl, rh;
  334: 
  335:     u.ll = a;
  336:     rl = (uint64_t)u.l.low * (uint64_t)b;
  337:     rh = (uint64_t)u.l.high * (uint64_t)b;
  338:     rh += (rl >> 32);
  339:     res.l.high = rh / c;
  340:     res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
  341:     return res.ll;
  342: }
  343: 
  344: #include "module.h"
  345: 
  346: #endif

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