[qemu.git] / qemu-common.h

/* Common header file that is included by all of qemu.  */
#ifndef QEMU_COMMON_H
#define QEMU_COMMON_H

#include "compiler.h"
#include "config-host.h"

#if defined(__arm__) || defined(__sparc__) || defined(__mips__) || defined(__hppa__) || defined(__ia64__)
#define WORDS_ALIGNED
#endif

#define TFR(expr) do { if ((expr) != -1) break; } while (errno == EINTR)

typedef struct QEMUTimer QEMUTimer;
typedef struct QEMUFile QEMUFile;
typedef struct DeviceState DeviceState;

struct Monitor;
typedef struct Monitor Monitor;

/* we put basic includes here to avoid repeating them in device drivers */
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <stdbool.h>
#include <string.h>
#include <strings.h>
#include <inttypes.h>
#include <limits.h>
#include <time.h>
#include <ctype.h>
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <assert.h>
#include <signal.h>
#include <glib.h>

#ifdef _WIN32
#include "qemu-os-win32.h"
#endif

#ifdef CONFIG_POSIX
#include "qemu-os-posix.h"
#endif

#ifndef O_LARGEFILE
#define O_LARGEFILE 0
#endif
#ifndef O_BINARY
#define O_BINARY 0
#endif
#ifndef MAP_ANONYMOUS
#define MAP_ANONYMOUS MAP_ANON
#endif
#ifndef ENOMEDIUM
#define ENOMEDIUM ENODEV
#endif
#if !defined(ENOTSUP)
#define ENOTSUP 4096
#endif
#ifndef TIME_MAX
#define TIME_MAX LONG_MAX
#endif

/* HOST_LONG_BITS is the size of a native pointer in bits. */
#if UINTPTR_MAX == UINT32_MAX
# define HOST_LONG_BITS 32
#elif UINTPTR_MAX == UINT64_MAX
# define HOST_LONG_BITS 64
#else
# error Unknown pointer size
#endif

#ifndef CONFIG_IOVEC
#define CONFIG_IOVEC
struct iovec {
    void *iov_base;
    size_t iov_len;
};
/*
 * Use the same value as Linux for now.
 */
#define IOV_MAX		1024
#else
#include <sys/uio.h>
#endif

typedef int (*fprintf_function)(FILE *f, const char *fmt, ...)
    GCC_FMT_ATTR(2, 3);

#ifdef _WIN32
#define fsync _commit
#if !defined(lseek)
# define lseek _lseeki64
#endif
int qemu_ftruncate64(int, int64_t);
#if !defined(ftruncate)
# define ftruncate qemu_ftruncate64
#endif

static inline char *realpath(const char *path, char *resolved_path)
{
    _fullpath(resolved_path, path, _MAX_PATH);
    return resolved_path;
}
#endif

/* icount */
void configure_icount(const char *option);
extern int use_icount;

/* FIXME: Remove NEED_CPU_H.  */
#ifndef NEED_CPU_H

#include "osdep.h"
#include "bswap.h"

#else

#include "cpu.h"

#endif /* !defined(NEED_CPU_H) */

/* main function, renamed */
#if defined(CONFIG_COCOA)
int qemu_main(int argc, char **argv, char **envp);
#endif

void qemu_get_timedate(struct tm *tm, int offset);
int qemu_timedate_diff(struct tm *tm);

/* cutils.c */
void pstrcpy(char *buf, int buf_size, const char *str);
char *pstrcat(char *buf, int buf_size, const char *s);
int strstart(const char *str, const char *val, const char **ptr);
int stristart(const char *str, const char *val, const char **ptr);
int qemu_strnlen(const char *s, int max_len);
time_t mktimegm(struct tm *tm);
int qemu_fls(int i);
int qemu_fdatasync(int fd);
int fcntl_setfl(int fd, int flag);
int qemu_parse_fd(const char *param);

/*
 * strtosz() suffixes used to specify the default treatment of an
 * argument passed to strtosz() without an explicit suffix.
 * These should be defined using upper case characters in the range
 * A-Z, as strtosz() will use qemu_toupper() on the given argument
 * prior to comparison.
 */
#define STRTOSZ_DEFSUFFIX_TB	'T'
#define STRTOSZ_DEFSUFFIX_GB	'G'
#define STRTOSZ_DEFSUFFIX_MB	'M'
#define STRTOSZ_DEFSUFFIX_KB	'K'
#define STRTOSZ_DEFSUFFIX_B	'B'
int64_t strtosz(const char *nptr, char **end);
int64_t strtosz_suffix(const char *nptr, char **end, const char default_suffix);
int64_t strtosz_suffix_unit(const char *nptr, char **end,
                            const char default_suffix, int64_t unit);

/* path.c */
void init_paths(const char *prefix);
const char *path(const char *pathname);

#define qemu_isalnum(c)		isalnum((unsigned char)(c))
#define qemu_isalpha(c)		isalpha((unsigned char)(c))
#define qemu_iscntrl(c)		iscntrl((unsigned char)(c))
#define qemu_isdigit(c)		isdigit((unsigned char)(c))
#define qemu_isgraph(c)		isgraph((unsigned char)(c))
#define qemu_islower(c)		islower((unsigned char)(c))
#define qemu_isprint(c)		isprint((unsigned char)(c))
#define qemu_ispunct(c)		ispunct((unsigned char)(c))
#define qemu_isspace(c)		isspace((unsigned char)(c))
#define qemu_isupper(c)		isupper((unsigned char)(c))
#define qemu_isxdigit(c)	isxdigit((unsigned char)(c))
#define qemu_tolower(c)		tolower((unsigned char)(c))
#define qemu_toupper(c)		toupper((unsigned char)(c))
#define qemu_isascii(c)		isascii((unsigned char)(c))
#define qemu_toascii(c)		toascii((unsigned char)(c))

void *qemu_oom_check(void *ptr);

int qemu_open(const char *name, int flags, ...);
ssize_t qemu_write_full(int fd, const void *buf, size_t count)
    QEMU_WARN_UNUSED_RESULT;
ssize_t qemu_send_full(int fd, const void *buf, size_t count, int flags)
    QEMU_WARN_UNUSED_RESULT;
ssize_t qemu_recv_full(int fd, void *buf, size_t count, int flags)
    QEMU_WARN_UNUSED_RESULT;

#ifndef _WIN32
int qemu_eventfd(int pipefd[2]);
int qemu_pipe(int pipefd[2]);
#endif

#ifdef _WIN32
#define qemu_recv(sockfd, buf, len, flags) recv(sockfd, (void *)buf, len, flags)
#else
#define qemu_recv(sockfd, buf, len, flags) recv(sockfd, buf, len, flags)
#endif

int qemu_recvv(int sockfd, struct iovec *iov, int len, int iov_offset);
int qemu_sendv(int sockfd, struct iovec *iov, int len, int iov_offset);

/* Error handling.  */

void QEMU_NORETURN hw_error(const char *fmt, ...) GCC_FMT_ATTR(1, 2);

struct ParallelIOArg {
    void *buffer;
    int count;
};

typedef int (*DMA_transfer_handler) (void *opaque, int nchan, int pos, int size);

/* A load of opaque types so that device init declarations don't have to
   pull in all the real definitions.  */
typedef struct NICInfo NICInfo;
typedef struct HCIInfo HCIInfo;
typedef struct AudioState AudioState;
typedef struct BlockDriverState BlockDriverState;
typedef struct DriveInfo DriveInfo;
typedef struct DisplayState DisplayState;
typedef struct DisplayChangeListener DisplayChangeListener;
typedef struct DisplaySurface DisplaySurface;
typedef struct DisplayAllocator DisplayAllocator;
typedef struct PixelFormat PixelFormat;
typedef struct TextConsole TextConsole;
typedef TextConsole QEMUConsole;
typedef struct CharDriverState CharDriverState;
typedef struct MACAddr MACAddr;
typedef struct VLANState VLANState;
typedef struct VLANClientState VLANClientState;
typedef struct i2c_bus i2c_bus;
typedef struct ISABus ISABus;
typedef struct SMBusDevice SMBusDevice;
typedef struct PCIHostState PCIHostState;
typedef struct PCIExpressHost PCIExpressHost;
typedef struct PCIBus PCIBus;
typedef struct PCIDevice PCIDevice;
typedef struct PCIExpressDevice PCIExpressDevice;
typedef struct PCIBridge PCIBridge;
typedef struct PCIEAERMsg PCIEAERMsg;
typedef struct PCIEAERLog PCIEAERLog;
typedef struct PCIEAERErr PCIEAERErr;
typedef struct PCIEPort PCIEPort;
typedef struct PCIESlot PCIESlot;
typedef struct SerialState SerialState;
typedef struct IRQState *qemu_irq;
typedef struct PCMCIACardState PCMCIACardState;
typedef struct MouseTransformInfo MouseTransformInfo;
typedef struct uWireSlave uWireSlave;
typedef struct I2SCodec I2SCodec;
typedef struct SSIBus SSIBus;
typedef struct EventNotifier EventNotifier;
typedef struct VirtIODevice VirtIODevice;
typedef struct QEMUSGList QEMUSGList;
typedef struct SHPCDevice SHPCDevice;

typedef uint64_t pcibus_t;

typedef enum LostTickPolicy {
    LOST_TICK_DISCARD,
    LOST_TICK_DELAY,
    LOST_TICK_MERGE,
    LOST_TICK_SLEW,
    LOST_TICK_MAX
} LostTickPolicy;

void tcg_exec_init(unsigned long tb_size);
bool tcg_enabled(void);

void cpu_exec_init_all(void);

/* CPU save/load.  */
void cpu_save(QEMUFile *f, void *opaque);
int cpu_load(QEMUFile *f, void *opaque, int version_id);

/* Unblock cpu */
void qemu_cpu_kick(void *env);
void qemu_cpu_kick_self(void);
int qemu_cpu_is_self(void *env);
bool all_cpu_threads_idle(void);

/* work queue */
struct qemu_work_item {
    struct qemu_work_item *next;
    void (*func)(void *data);
    void *data;
    int done;
};

#ifdef CONFIG_USER_ONLY
#define qemu_init_vcpu(env) do { } while (0)
#else
void qemu_init_vcpu(void *env);
#endif

/**
 * Sends an iovec (or optionally a part of it) down a socket, yielding
 * when the socket is full.
 */
int qemu_co_sendv(int sockfd, struct iovec *iov,
                  int len, int iov_offset);

/**
 * Receives data into an iovec (or optionally into a part of it) from
 * a socket, yielding when there is no data in the socket.
 */
int qemu_co_recvv(int sockfd, struct iovec *iov,
                  int len, int iov_offset);


/**
 * Sends a buffer down a socket, yielding when the socket is full.
 */
int qemu_co_send(int sockfd, void *buf, int len);

/**
 * Receives data into a buffer from a socket, yielding when there
 * is no data in the socket.
 */
int qemu_co_recv(int sockfd, void *buf, int len);


typedef struct QEMUIOVector {
    struct iovec *iov;
    int niov;
    int nalloc;
    size_t size;
} QEMUIOVector;

void qemu_iovec_init(QEMUIOVector *qiov, int alloc_hint);
void qemu_iovec_init_external(QEMUIOVector *qiov, struct iovec *iov, int niov);
void qemu_iovec_add(QEMUIOVector *qiov, void *base, size_t len);
void qemu_iovec_copy(QEMUIOVector *dst, QEMUIOVector *src, uint64_t skip,
    size_t size);
void qemu_iovec_concat(QEMUIOVector *dst, QEMUIOVector *src, size_t size);
void qemu_iovec_destroy(QEMUIOVector *qiov);
void qemu_iovec_reset(QEMUIOVector *qiov);
void qemu_iovec_to_buffer(QEMUIOVector *qiov, void *buf);
void qemu_iovec_from_buffer(QEMUIOVector *qiov, const void *buf, size_t count);
void qemu_iovec_memset(QEMUIOVector *qiov, int c, size_t count);
void qemu_iovec_memset_skip(QEMUIOVector *qiov, int c, size_t count,
                            size_t skip);

bool buffer_is_zero(const void *buf, size_t len);

void qemu_progress_init(int enabled, float min_skip);
void qemu_progress_end(void);
void qemu_progress_print(float delta, int max);

#define QEMU_FILE_TYPE_BIOS   0
#define QEMU_FILE_TYPE_KEYMAP 1
char *qemu_find_file(int type, const char *name);

/* OS specific functions */
void os_setup_early_signal_handling(void);
char *os_find_datadir(const char *argv0);
void os_parse_cmd_args(int index, const char *optarg);
void os_pidfile_error(void);

/* Convert a byte between binary and BCD.  */
static inline uint8_t to_bcd(uint8_t val)
{
    return ((val / 10) << 4) | (val % 10);
}

static inline uint8_t from_bcd(uint8_t val)
{
    return ((val >> 4) * 10) + (val & 0x0f);
}

/* compute with 96 bit intermediate result: (a*b)/c */
static inline uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
{
    union {
        uint64_t ll;
        struct {
#ifdef HOST_WORDS_BIGENDIAN
            uint32_t high, low;
#else
            uint32_t low, high;
#endif
        } l;
    } u, res;
    uint64_t rl, rh;

    u.ll = a;
    rl = (uint64_t)u.l.low * (uint64_t)b;
    rh = (uint64_t)u.l.high * (uint64_t)b;
    rh += (rl >> 32);
    res.l.high = rh / c;
    res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
    return res.ll;
}

/* Round number down to multiple */
#define QEMU_ALIGN_DOWN(n, m) ((n) / (m) * (m))

/* Round number up to multiple */
#define QEMU_ALIGN_UP(n, m) QEMU_ALIGN_DOWN((n) + (m) - 1, (m))

#include "module.h"

#endif
Commit	Line	Data
	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	/* HOST_LONG_BITS is the size of a native pointer in bits. */
	69	#if UINTPTR_MAX == UINT32_MAX
	70	# define HOST_LONG_BITS 32
	71	#elif UINTPTR_MAX == UINT64_MAX
	72	# define HOST_LONG_BITS 64
	73	#else
	74	# error Unknown pointer size
	75	#endif
	76
	77	#ifndef CONFIG_IOVEC
	78	#define CONFIG_IOVEC
	79	struct iovec {
	80	void *iov_base;
	81	size_t iov_len;
	82	};
	83	/*
	84	* Use the same value as Linux for now.
	85	*/
	86	#define IOV_MAX 1024
	87	#else
	88	#include <sys/uio.h>
	89	#endif
	90
	91	typedef int (fprintf_function)(FILE f, const char *fmt, ...)
	92	GCC_FMT_ATTR(2, 3);
	93
	94	#ifdef _WIN32
	95	#define fsync _commit
	96	#if !defined(lseek)
	97	# define lseek _lseeki64
	98	#endif
	99	int qemu_ftruncate64(int, int64_t);
	100	#if !defined(ftruncate)
	101	# define ftruncate qemu_ftruncate64
	102	#endif
	103
	104	static inline char realpath(const char path, char *resolved_path)
	105	{
	106	_fullpath(resolved_path, path, _MAX_PATH);
	107	return resolved_path;
	108	}
	109	#endif
	110
	111	/* icount */
	112	void configure_icount(const char *option);
	113	extern int use_icount;
	114
	115	/* FIXME: Remove NEED_CPU_H. */
	116	#ifndef NEED_CPU_H
	117
	118	#include "osdep.h"
	119	#include "bswap.h"
	120
	121	#else
	122
	123	#include "cpu.h"
	124
	125	#endif /* !defined(NEED_CPU_H) */
	126
	127	/* main function, renamed */
	128	#if defined(CONFIG_COCOA)
	129	int qemu_main(int argc, char argv, char envp);
	130	#endif
	131
	132	void qemu_get_timedate(struct tm *tm, int offset);
	133	int qemu_timedate_diff(struct tm *tm);
	134
	135	/* cutils.c */
	136	void pstrcpy(char buf, int buf_size, const char str);
	137	char pstrcat(char buf, int buf_size, const char *s);
	138	int strstart(const char str, const char val, const char **ptr);
	139	int stristart(const char str, const char val, const char **ptr);
	140	int qemu_strnlen(const char *s, int max_len);
	141	time_t mktimegm(struct tm *tm);
	142	int qemu_fls(int i);
	143	int qemu_fdatasync(int fd);
	144	int fcntl_setfl(int fd, int flag);
	145	int qemu_parse_fd(const char *param);
	146
	147	/*
	148	* strtosz() suffixes used to specify the default treatment of an
	149	* argument passed to strtosz() without an explicit suffix.
	150	* These should be defined using upper case characters in the range
	151	* A-Z, as strtosz() will use qemu_toupper() on the given argument
	152	* prior to comparison.
	153	*/
	154	#define STRTOSZ_DEFSUFFIX_TB 'T'
	155	#define STRTOSZ_DEFSUFFIX_GB 'G'
	156	#define STRTOSZ_DEFSUFFIX_MB 'M'
	157	#define STRTOSZ_DEFSUFFIX_KB 'K'
	158	#define STRTOSZ_DEFSUFFIX_B 'B'
	159	int64_t strtosz(const char nptr, char *end);
	160	int64_t strtosz_suffix(const char nptr, char *end, const char default_suffix);
	161	int64_t strtosz_suffix_unit(const char nptr, char *end,
	162	const char default_suffix, int64_t unit);
	163
	164	/* path.c */
	165	void init_paths(const char *prefix);
	166	const char path(const char pathname);
	167
	168	#define qemu_isalnum(c) isalnum((unsigned char)(c))
	169	#define qemu_isalpha(c) isalpha((unsigned char)(c))
	170	#define qemu_iscntrl(c) iscntrl((unsigned char)(c))
	171	#define qemu_isdigit(c) isdigit((unsigned char)(c))
	172	#define qemu_isgraph(c) isgraph((unsigned char)(c))
	173	#define qemu_islower(c) islower((unsigned char)(c))
	174	#define qemu_isprint(c) isprint((unsigned char)(c))
	175	#define qemu_ispunct(c) ispunct((unsigned char)(c))
	176	#define qemu_isspace(c) isspace((unsigned char)(c))
	177	#define qemu_isupper(c) isupper((unsigned char)(c))
	178	#define qemu_isxdigit(c) isxdigit((unsigned char)(c))
	179	#define qemu_tolower(c) tolower((unsigned char)(c))
	180	#define qemu_toupper(c) toupper((unsigned char)(c))
	181	#define qemu_isascii(c) isascii((unsigned char)(c))
	182	#define qemu_toascii(c) toascii((unsigned char)(c))
	183
	184	void qemu_oom_check(void ptr);
	185
	186	int qemu_open(const char *name, int flags, ...);
	187	ssize_t qemu_write_full(int fd, const void *buf, size_t count)
	188	QEMU_WARN_UNUSED_RESULT;
	189	ssize_t qemu_send_full(int fd, const void *buf, size_t count, int flags)
	190	QEMU_WARN_UNUSED_RESULT;
	191	ssize_t qemu_recv_full(int fd, void *buf, size_t count, int flags)
	192	QEMU_WARN_UNUSED_RESULT;
	193
	194	#ifndef _WIN32
	195	int qemu_eventfd(int pipefd[2]);
	196	int qemu_pipe(int pipefd[2]);
	197	#endif
	198
	199	#ifdef _WIN32
	200	#define qemu_recv(sockfd, buf, len, flags) recv(sockfd, (void *)buf, len, flags)
	201	#else
	202	#define qemu_recv(sockfd, buf, len, flags) recv(sockfd, buf, len, flags)
	203	#endif
	204
	205	int qemu_recvv(int sockfd, struct iovec *iov, int len, int iov_offset);
	206	int qemu_sendv(int sockfd, struct iovec *iov, int len, int iov_offset);
	207
	208	/* Error handling. */
	209
	210	void QEMU_NORETURN hw_error(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
	211
	212	struct ParallelIOArg {
	213	void *buffer;
	214	int count;
	215	};
	216
	217	typedef int (DMA_transfer_handler) (void opaque, int nchan, int pos, int size);
	218
	219	/* A load of opaque types so that device init declarations don't have to
	220	pull in all the real definitions. */
	221	typedef struct NICInfo NICInfo;
	222	typedef struct HCIInfo HCIInfo;
	223	typedef struct AudioState AudioState;
	224	typedef struct BlockDriverState BlockDriverState;
	225	typedef struct DriveInfo DriveInfo;
	226	typedef struct DisplayState DisplayState;
	227	typedef struct DisplayChangeListener DisplayChangeListener;
	228	typedef struct DisplaySurface DisplaySurface;
	229	typedef struct DisplayAllocator DisplayAllocator;
	230	typedef struct PixelFormat PixelFormat;
	231	typedef struct TextConsole TextConsole;
	232	typedef TextConsole QEMUConsole;
	233	typedef struct CharDriverState CharDriverState;
	234	typedef struct MACAddr MACAddr;
	235	typedef struct VLANState VLANState;
	236	typedef struct VLANClientState VLANClientState;
	237	typedef struct i2c_bus i2c_bus;
	238	typedef struct ISABus ISABus;
	239	typedef struct SMBusDevice SMBusDevice;
	240	typedef struct PCIHostState PCIHostState;
	241	typedef struct PCIExpressHost PCIExpressHost;
	242	typedef struct PCIBus PCIBus;
	243	typedef struct PCIDevice PCIDevice;
	244	typedef struct PCIExpressDevice PCIExpressDevice;
	245	typedef struct PCIBridge PCIBridge;
	246	typedef struct PCIEAERMsg PCIEAERMsg;
	247	typedef struct PCIEAERLog PCIEAERLog;
	248	typedef struct PCIEAERErr PCIEAERErr;
	249	typedef struct PCIEPort PCIEPort;
	250	typedef struct PCIESlot PCIESlot;
	251	typedef struct SerialState SerialState;
	252	typedef struct IRQState *qemu_irq;
	253	typedef struct PCMCIACardState PCMCIACardState;
	254	typedef struct MouseTransformInfo MouseTransformInfo;
	255	typedef struct uWireSlave uWireSlave;
	256	typedef struct I2SCodec I2SCodec;
	257	typedef struct SSIBus SSIBus;
	258	typedef struct EventNotifier EventNotifier;
	259	typedef struct VirtIODevice VirtIODevice;
	260	typedef struct QEMUSGList QEMUSGList;
	261	typedef struct SHPCDevice SHPCDevice;
	262
	263	typedef uint64_t pcibus_t;
	264
	265	typedef enum LostTickPolicy {
	266	LOST_TICK_DISCARD,
	267	LOST_TICK_DELAY,
	268	LOST_TICK_MERGE,
	269	LOST_TICK_SLEW,
	270	LOST_TICK_MAX
	271	} LostTickPolicy;
	272
	273	void tcg_exec_init(unsigned long tb_size);
	274	bool tcg_enabled(void);
	275
	276	void cpu_exec_init_all(void);
	277
	278	/* CPU save/load. */
	279	void cpu_save(QEMUFile f, void opaque);
	280	int cpu_load(QEMUFile f, void opaque, int version_id);
	281
	282	/* Unblock cpu */
	283	void qemu_cpu_kick(void *env);
	284	void qemu_cpu_kick_self(void);
	285	int qemu_cpu_is_self(void *env);
	286	bool all_cpu_threads_idle(void);
	287
	288	/* work queue */
	289	struct qemu_work_item {
	290	struct qemu_work_item *next;
	291	void (func)(void data);
	292	void *data;
	293	int done;
	294	};
	295
	296	#ifdef CONFIG_USER_ONLY
	297	#define qemu_init_vcpu(env) do { } while (0)
	298	#else
	299	void qemu_init_vcpu(void *env);
	300	#endif
	301
	302	/**
	303	* Sends an iovec (or optionally a part of it) down a socket, yielding
	304	* when the socket is full.
	305	*/
	306	int qemu_co_sendv(int sockfd, struct iovec *iov,
	307	int len, int iov_offset);
	308
	309	/**
	310	* Receives data into an iovec (or optionally into a part of it) from
	311	* a socket, yielding when there is no data in the socket.
	312	*/
	313	int qemu_co_recvv(int sockfd, struct iovec *iov,
	314	int len, int iov_offset);
	315
	316
	317	/**
	318	* Sends a buffer down a socket, yielding when the socket is full.
	319	*/
	320	int qemu_co_send(int sockfd, void *buf, int len);
	321
	322	/**
	323	* Receives data into a buffer from a socket, yielding when there
	324	* is no data in the socket.
	325	*/
	326	int qemu_co_recv(int sockfd, void *buf, int len);
	327
	328
	329	typedef struct QEMUIOVector {
	330	struct iovec *iov;
	331	int niov;
	332	int nalloc;
	333	size_t size;
	334	} QEMUIOVector;
	335
	336	void qemu_iovec_init(QEMUIOVector *qiov, int alloc_hint);
	337	void qemu_iovec_init_external(QEMUIOVector qiov, struct iovec iov, int niov);
	338	void qemu_iovec_add(QEMUIOVector qiov, void base, size_t len);
	339	void qemu_iovec_copy(QEMUIOVector dst, QEMUIOVector src, uint64_t skip,
	340	size_t size);
	341	void qemu_iovec_concat(QEMUIOVector dst, QEMUIOVector src, size_t size);
	342	void qemu_iovec_destroy(QEMUIOVector *qiov);
	343	void qemu_iovec_reset(QEMUIOVector *qiov);
	344	void qemu_iovec_to_buffer(QEMUIOVector qiov, void buf);
	345	void qemu_iovec_from_buffer(QEMUIOVector qiov, const void buf, size_t count);
	346	void qemu_iovec_memset(QEMUIOVector *qiov, int c, size_t count);
	347	void qemu_iovec_memset_skip(QEMUIOVector *qiov, int c, size_t count,
	348	size_t skip);
	349
	350	bool buffer_is_zero(const void *buf, size_t len);
	351
	352	void qemu_progress_init(int enabled, float min_skip);
	353	void qemu_progress_end(void);
	354	void qemu_progress_print(float delta, int max);
	355
	356	#define QEMU_FILE_TYPE_BIOS 0
	357	#define QEMU_FILE_TYPE_KEYMAP 1
	358	char qemu_find_file(int type, const char name);
	359
	360	/* OS specific functions */
	361	void os_setup_early_signal_handling(void);
	362	char os_find_datadir(const char argv0);
	363	void os_parse_cmd_args(int index, const char *optarg);
	364	void os_pidfile_error(void);
	365
	366	/* Convert a byte between binary and BCD. */
	367	static inline uint8_t to_bcd(uint8_t val)
	368	{
	369	return ((val / 10) << 4) \| (val % 10);
	370	}
	371
	372	static inline uint8_t from_bcd(uint8_t val)
	373	{
	374	return ((val >> 4) * 10) + (val & 0x0f);
	375	}
	376
	377	/* compute with 96 bit intermediate result: (ab)/c /
	378	static inline uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
	379	{
	380	union {
	381	uint64_t ll;
	382	struct {
	383	#ifdef HOST_WORDS_BIGENDIAN
	384	uint32_t high, low;
	385	#else
	386	uint32_t low, high;
	387	#endif
	388	} l;
	389	} u, res;
	390	uint64_t rl, rh;
	391
	392	u.ll = a;
	393	rl = (uint64_t)u.l.low * (uint64_t)b;
	394	rh = (uint64_t)u.l.high * (uint64_t)b;
	395	rh += (rl >> 32);
	396	res.l.high = rh / c;
	397	res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
	398	return res.ll;
	399	}
	400
	401	/* Round number down to multiple */
	402	#define QEMU_ALIGN_DOWN(n, m) ((n) / (m) * (m))
	403
	404	/* Round number up to multiple */
	405	#define QEMU_ALIGN_UP(n, m) QEMU_ALIGN_DOWN((n) + (m) - 1, (m))
	406
	407	#include "module.h"
	408
	409	#endif