[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
#if !defined(ECANCELED)
#define ECANCELED 4097
#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

/* 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 MSIMessage MSIMessage;
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 a (part of) iovec down a socket, yielding when the socket is full, or
 * Receives data into a (part of) iovec from a socket,
 * yielding when there is no data in the socket.
 * The same interface as qemu_sendv_recvv(), with added yielding.
 * XXX should mark these as coroutine_fn
 */
ssize_t qemu_co_sendv_recvv(int sockfd, struct iovec *iov, unsigned iov_cnt,
                            size_t offset, size_t bytes, bool do_send);
#define qemu_co_recvv(sockfd, iov, iov_cnt, offset, bytes) \
  qemu_co_sendv_recvv(sockfd, iov, iov_cnt, offset, bytes, false)
#define qemu_co_sendv(sockfd, iov, iov_cnt, offset, bytes) \
  qemu_co_sendv_recvv(sockfd, iov, iov_cnt, offset, bytes, true)

/**
 * The same as above, but with just a single buffer
 */
ssize_t qemu_co_send_recv(int sockfd, void *buf, size_t bytes, bool do_send);
#define qemu_co_recv(sockfd, buf, bytes) \
  qemu_co_send_recv(sockfd, buf, bytes, false)
#define qemu_co_send(sockfd, buf, bytes) \
  qemu_co_send_recv(sockfd, buf, bytes, true)

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_concat(QEMUIOVector *dst,
                       QEMUIOVector *src, size_t soffset, size_t sbytes);
void qemu_iovec_destroy(QEMUIOVector *qiov);
void qemu_iovec_reset(QEMUIOVector *qiov);
size_t qemu_iovec_to_buf(QEMUIOVector *qiov, size_t offset,
                         void *buf, size_t bytes);
size_t qemu_iovec_from_buf(QEMUIOVector *qiov, size_t offset,
                           const void *buf, size_t bytes);
size_t qemu_iovec_memset(QEMUIOVector *qiov, size_t offset,
                         int fillc, size_t bytes);

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
faf07963 PB	1	/* Common header file that is included by all of qemu. */
	2	#ifndef QEMU_COMMON_H
	3	#define QEMU_COMMON_H
	4
5c026320	5	#include "compiler.h"
beb6f0de KW	6	#include "config-host.h"
beb6f0de KW	7
332ae28d PB	8	#if defined(__arm__) \|\| defined(__sparc__) \|\| defined(__mips__) \|\| defined(__hppa__) \|\| defined(__ia64__)
	9	#define WORDS_ALIGNED
	10	#endif
	11
082b5557	12	#define TFR(expr) do { if ((expr) != -1) break; } while (errno == EINTR)
24ebf5f3	13
29e922b6 BS	14	typedef struct QEMUTimer QEMUTimer;
29e922b6 BS	15	typedef struct QEMUFile QEMUFile;
92a16d7a	16	typedef struct DeviceState DeviceState;
29e922b6	17
316378e4 JK	18	struct Monitor;
	19	typedef struct Monitor Monitor;
	20
faf07963 PB	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>
11165820	25	#include <stdbool.h>
faf07963	26	#include <string.h>
c8906845	27	#include <strings.h>
faf07963 PB	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>
dcfd0865	36	#include <sys/time.h>
55616505	37	#include <assert.h>
86f69a92	38	#include <signal.h>
14015304	39	#include <glib.h>
faf07963	40
082b5557 BS	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
faf07963 PB	49	#ifndef O_LARGEFILE
	50	#define O_LARGEFILE 0
	51	#endif
	52	#ifndef O_BINARY
	53	#define O_BINARY 0
	54	#endif
0e74e66b JQ	55	#ifndef MAP_ANONYMOUS
	56	#define MAP_ANONYMOUS MAP_ANON
	57	#endif
faf07963 PB	58	#ifndef ENOMEDIUM
	59	#define ENOMEDIUM ENODEV
	60	#endif
4c955388	61	#if !defined(ENOTSUP)
2880bc32 JQ	62	#define ENOTSUP 4096
2880bc32 JQ	63	#endif
2084a8e3 PB	64	#if !defined(ECANCELED)
	65	#define ECANCELED 4097
	66	#endif
3c9405a0 GH	67	#ifndef TIME_MAX
	68	#define TIME_MAX LONG_MAX
	69	#endif
faf07963	70
c0fd260e SW	71	/* HOST_LONG_BITS is the size of a native pointer in bits. */
	72	#if UINTPTR_MAX == UINT32_MAX
	73	# define HOST_LONG_BITS 32
	74	#elif UINTPTR_MAX == UINT64_MAX
	75	# define HOST_LONG_BITS 64
	76	#else
	77	# error Unknown pointer size
	78	#endif
	79
6114fdb0 JQ	80	#ifndef CONFIG_IOVEC
6114fdb0 JQ	81	#define CONFIG_IOVEC
bf9298b9 AL	82	struct iovec {
	83	void *iov_base;
	84	size_t iov_len;
	85	};
e2a305fb CH	86	/*
	87	* Use the same value as Linux for now.
	88	*/
	89	#define IOV_MAX 1024
331dadde BS	90	#else
331dadde BS	91	#include <sys/uio.h>
bf9298b9 AL	92	#endif
bf9298b9 AL	93
f868445a SW	94	typedef int (fprintf_function)(FILE f, const char *fmt, ...)
	95	GCC_FMT_ATTR(2, 3);
	96
faf07963	97	#ifdef _WIN32
faf07963	98	#define fsync _commit
371c6489 SW	99	#if !defined(lseek)
	100	# define lseek _lseeki64
	101	#endif
64b85a8f	102	int qemu_ftruncate64(int, int64_t);
371c6489 SW	103	#if !defined(ftruncate)
	104	# define ftruncate qemu_ftruncate64
	105	#endif
faf07963	106
faf07963 PB	107	static inline char realpath(const char path, char *resolved_path)
	108	{
	109	_fullpath(resolved_path, path, _MAX_PATH);
	110	return resolved_path;
	111	}
faf07963 PB	112	#endif
faf07963 PB	113
946fb27c PB	114	/* icount */
	115	void configure_icount(const char *option);
	116	extern int use_icount;
	117
faf07963 PB	118	/* FIXME: Remove NEED_CPU_H. */
	119	#ifndef NEED_CPU_H
	120
faf07963 PB	121	#include "osdep.h"
	122	#include "bswap.h"
	123
	124	#else
	125
	126	#include "cpu.h"
	127
	128	#endif /* !defined(NEED_CPU_H) */
	129
3bbbee18 AF	130	/* main function, renamed */
	131	#if defined(CONFIG_COCOA)
	132	int qemu_main(int argc, char argv, char envp);
	133	#endif
	134
f6503059 AZ	135	void qemu_get_timedate(struct tm *tm, int offset);
	136	int qemu_timedate_diff(struct tm *tm);
	137
faf07963 PB	138	/* cutils.c */
	139	void pstrcpy(char buf, int buf_size, const char str);
	140	char pstrcat(char buf, int buf_size, const char *s);
	141	int strstart(const char str, const char val, const char **ptr);
	142	int stristart(const char str, const char val, const char **ptr);
d43277c5	143	int qemu_strnlen(const char *s, int max_len);
faf07963	144	time_t mktimegm(struct tm *tm);
ad46db9a	145	int qemu_fls(int i);
6f1953c4	146	int qemu_fdatasync(int fd);
db1a4972	147	int fcntl_setfl(int fd, int flag);
443916d1	148	int qemu_parse_fd(const char *param);
d8427002	149
d7142456 JS	150	/*
	151	* strtosz() suffixes used to specify the default treatment of an
	152	* argument passed to strtosz() without an explicit suffix.
	153	* These should be defined using upper case characters in the range
	154	* A-Z, as strtosz() will use qemu_toupper() on the given argument
	155	* prior to comparison.
	156	*/
d8427002 JS	157	#define STRTOSZ_DEFSUFFIX_TB 'T'
	158	#define STRTOSZ_DEFSUFFIX_GB 'G'
	159	#define STRTOSZ_DEFSUFFIX_MB 'M'
	160	#define STRTOSZ_DEFSUFFIX_KB 'K'
	161	#define STRTOSZ_DEFSUFFIX_B 'B'
70b4f4bb JS	162	int64_t strtosz(const char nptr, char *end);
70b4f4bb JS	163	int64_t strtosz_suffix(const char nptr, char *end, const char default_suffix);
a732e1ba JR	164	int64_t strtosz_suffix_unit(const char nptr, char *end,
a732e1ba JR	165	const char default_suffix, int64_t unit);
faf07963	166
37022086 BS	167	/* path.c */
	168	void init_paths(const char *prefix);
	169	const char path(const char pathname);
	170
cd390083 BS	171	#define qemu_isalnum(c) isalnum((unsigned char)(c))
	172	#define qemu_isalpha(c) isalpha((unsigned char)(c))
	173	#define qemu_iscntrl(c) iscntrl((unsigned char)(c))
	174	#define qemu_isdigit(c) isdigit((unsigned char)(c))
	175	#define qemu_isgraph(c) isgraph((unsigned char)(c))
	176	#define qemu_islower(c) islower((unsigned char)(c))
	177	#define qemu_isprint(c) isprint((unsigned char)(c))
	178	#define qemu_ispunct(c) ispunct((unsigned char)(c))
	179	#define qemu_isspace(c) isspace((unsigned char)(c))
	180	#define qemu_isupper(c) isupper((unsigned char)(c))
	181	#define qemu_isxdigit(c) isxdigit((unsigned char)(c))
	182	#define qemu_tolower(c) tolower((unsigned char)(c))
	183	#define qemu_toupper(c) toupper((unsigned char)(c))
	184	#define qemu_isascii(c) isascii((unsigned char)(c))
	185	#define qemu_toascii(c) toascii((unsigned char)(c))
	186
b152aa84	187	void qemu_oom_check(void ptr);
ca10f867	188
40ff6d7e	189	int qemu_open(const char *name, int flags, ...);
7c7c0629 JQ	190	ssize_t qemu_write_full(int fd, const void *buf, size_t count)
7c7c0629 JQ	191	QEMU_WARN_UNUSED_RESULT;
993295fe PB	192	ssize_t qemu_send_full(int fd, const void *buf, size_t count, int flags)
993295fe PB	193	QEMU_WARN_UNUSED_RESULT;
8c5135f9	194	ssize_t qemu_recv_full(int fd, void *buf, size_t count, int flags)
993295fe	195	QEMU_WARN_UNUSED_RESULT;
40ff6d7e KW	196
40ff6d7e KW	197	#ifndef _WIN32
f3dfda61	198	int qemu_eventfd(int pipefd[2]);
40ff6d7e KW	199	int qemu_pipe(int pipefd[2]);
	200	#endif
	201
00aa0040 BS	202	#ifdef _WIN32
	203	#define qemu_recv(sockfd, buf, len, flags) recv(sockfd, (void *)buf, len, flags)
	204	#else
	205	#define qemu_recv(sockfd, buf, len, flags) recv(sockfd, buf, len, flags)
	206	#endif
	207
87ecb68b PB	208	/* Error handling. */
87ecb68b PB	209
e5924d89	210	void QEMU_NORETURN hw_error(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
87ecb68b	211
87ecb68b PB	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;
1ae26a18	222	typedef struct HCIInfo HCIInfo;
87ecb68b PB	223	typedef struct AudioState AudioState;
87ecb68b PB	224	typedef struct BlockDriverState BlockDriverState;
2446333c	225	typedef struct DriveInfo DriveInfo;
87ecb68b	226	typedef struct DisplayState DisplayState;
7d957bd8 AL	227	typedef struct DisplayChangeListener DisplayChangeListener;
7d957bd8 AL	228	typedef struct DisplaySurface DisplaySurface;
7b5d76da	229	typedef struct DisplayAllocator DisplayAllocator;
7d957bd8	230	typedef struct PixelFormat PixelFormat;
87ecb68b	231	typedef struct TextConsole TextConsole;
c60e08d9	232	typedef TextConsole QEMUConsole;
87ecb68b	233	typedef struct CharDriverState CharDriverState;
76d32cba	234	typedef struct MACAddr MACAddr;
87ecb68b	235	typedef struct VLANState VLANState;
f7105843	236	typedef struct VLANClientState VLANClientState;
87ecb68b	237	typedef struct i2c_bus i2c_bus;
48a18b3c	238	typedef struct ISABus ISABus;
87ecb68b	239	typedef struct SMBusDevice SMBusDevice;
fb47a2e9 IY	240	typedef struct PCIHostState PCIHostState;
fb47a2e9 IY	241	typedef struct PCIExpressHost PCIExpressHost;
87ecb68b PB	242	typedef struct PCIBus PCIBus;
87ecb68b PB	243	typedef struct PCIDevice PCIDevice;
0428527c	244	typedef struct PCIExpressDevice PCIExpressDevice;
68f79994	245	typedef struct PCIBridge PCIBridge;
34e65944 IY	246	typedef struct PCIEAERMsg PCIEAERMsg;
	247	typedef struct PCIEAERLog PCIEAERLog;
	248	typedef struct PCIEAERErr PCIEAERErr;
bc20ba98 IY	249	typedef struct PCIEPort PCIEPort;
bc20ba98 IY	250	typedef struct PCIESlot PCIESlot;
14de9bab	251	typedef struct MSIMessage MSIMessage;
87ecb68b PB	252	typedef struct SerialState SerialState;
87ecb68b PB	253	typedef struct IRQState *qemu_irq;
bc24a225 PB	254	typedef struct PCMCIACardState PCMCIACardState;
	255	typedef struct MouseTransformInfo MouseTransformInfo;
	256	typedef struct uWireSlave uWireSlave;
	257	typedef struct I2SCodec I2SCodec;
90d37239	258	typedef struct SSIBus SSIBus;
2292b339	259	typedef struct EventNotifier EventNotifier;
2be24aaa	260	typedef struct VirtIODevice VirtIODevice;
d35bf9ad	261	typedef struct QEMUSGList QEMUSGList;
1dc324d2	262	typedef struct SHPCDevice SHPCDevice;
87ecb68b	263
186993ee MT	264	typedef uint64_t pcibus_t;
186993ee MT	265
4e4fa398 JK	266	typedef enum LostTickPolicy {
	267	LOST_TICK_DISCARD,
	268	LOST_TICK_DELAY,
	269	LOST_TICK_MERGE,
	270	LOST_TICK_SLEW,
1ce05125	271	LOST_TICK_MAX
4e4fa398 JK	272	} LostTickPolicy;
4e4fa398 JK	273
d5ab9713 JK	274	void tcg_exec_init(unsigned long tb_size);
	275	bool tcg_enabled(void);
	276
	277	void cpu_exec_init_all(void);
d2053c3c	278
b3c7724c PB	279	/* CPU save/load. */
	280	void cpu_save(QEMUFile f, void opaque);
	281	int cpu_load(QEMUFile f, void opaque, int version_id);
	282
8edac960 AL	283	/* Unblock cpu */
8edac960 AL	284	void qemu_cpu_kick(void *env);
46d62fac	285	void qemu_cpu_kick_self(void);
b7680cb6	286	int qemu_cpu_is_self(void *env);
ab33fcda	287	bool all_cpu_threads_idle(void);
8edac960	288
e82bcec2 MT	289	/* work queue */
	290	struct qemu_work_item {
	291	struct qemu_work_item *next;
	292	void (func)(void data);
	293	void *data;
	294	int done;
	295	};
	296
0bf46a40 AL	297	#ifdef CONFIG_USER_ONLY
	298	#define qemu_init_vcpu(env) do { } while (0)
	299	#else
	300	void qemu_init_vcpu(void *env);
	301	#endif
	302
8c5135f9 PB	303
8c5135f9 PB	304	/**
2fc8ae1d MT	305	* Sends a (part of) iovec down a socket, yielding when the socket is full, or
	306	* Receives data into a (part of) iovec from a socket,
	307	* yielding when there is no data in the socket.
	308	* The same interface as qemu_sendv_recvv(), with added yielding.
	309	* XXX should mark these as coroutine_fn
8c5135f9	310	*/
2fc8ae1d MT	311	ssize_t qemu_co_sendv_recvv(int sockfd, struct iovec *iov, unsigned iov_cnt,
	312	size_t offset, size_t bytes, bool do_send);
	313	#define qemu_co_recvv(sockfd, iov, iov_cnt, offset, bytes) \
	314	qemu_co_sendv_recvv(sockfd, iov, iov_cnt, offset, bytes, false)
	315	#define qemu_co_sendv(sockfd, iov, iov_cnt, offset, bytes) \
	316	qemu_co_sendv_recvv(sockfd, iov, iov_cnt, offset, bytes, true)
8c5135f9 PB	317
8c5135f9 PB	318	/**
2fc8ae1d	319	* The same as above, but with just a single buffer
8c5135f9	320	*/
2fc8ae1d MT	321	ssize_t qemu_co_send_recv(int sockfd, void *buf, size_t bytes, bool do_send);
	322	#define qemu_co_recv(sockfd, buf, bytes) \
	323	qemu_co_send_recv(sockfd, buf, bytes, false)
	324	#define qemu_co_send(sockfd, buf, bytes) \
	325	qemu_co_send_recv(sockfd, buf, bytes, true)
8c5135f9	326
44e3ee8a AL	327	typedef struct QEMUIOVector {
	328	struct iovec *iov;
	329	int niov;
	330	int nalloc;
249aa745	331	size_t size;
44e3ee8a AL	332	} QEMUIOVector;
	333
	334	void qemu_iovec_init(QEMUIOVector *qiov, int alloc_hint);
522584a5	335	void qemu_iovec_init_external(QEMUIOVector qiov, struct iovec iov, int niov);
44e3ee8a	336	void qemu_iovec_add(QEMUIOVector qiov, void base, size_t len);
1b093c48 MT	337	void qemu_iovec_concat(QEMUIOVector *dst,
1b093c48 MT	338	QEMUIOVector *src, size_t soffset, size_t sbytes);
44e3ee8a	339	void qemu_iovec_destroy(QEMUIOVector *qiov);
be959463	340	void qemu_iovec_reset(QEMUIOVector *qiov);
d5e6b161 MT	341	size_t qemu_iovec_to_buf(QEMUIOVector *qiov, size_t offset,
d5e6b161 MT	342	void *buf, size_t bytes);
03396148 MT	343	size_t qemu_iovec_from_buf(QEMUIOVector *qiov, size_t offset,
03396148 MT	344	const void *buf, size_t bytes);
3d9b4925 MT	345	size_t qemu_iovec_memset(QEMUIOVector *qiov, size_t offset,
3d9b4925 MT	346	int fillc, size_t bytes);
44e3ee8a	347
1a6d39fd SH	348	bool buffer_is_zero(const void *buf, size_t len);
1a6d39fd SH	349
6b837bc4 JS	350	void qemu_progress_init(int enabled, float min_skip);
6b837bc4 JS	351	void qemu_progress_end(void);
3bfe4dbf	352	void qemu_progress_print(float delta, int max);
6b837bc4	353
082b5557 BS	354	#define QEMU_FILE_TYPE_BIOS 0
	355	#define QEMU_FILE_TYPE_KEYMAP 1
	356	char qemu_find_file(int type, const char name);
	357
	358	/* OS specific functions */
	359	void os_setup_early_signal_handling(void);
	360	char os_find_datadir(const char argv0);
	361	void os_parse_cmd_args(int index, const char *optarg);
	362	void os_pidfile_error(void);
	363
abd0c6bd PB	364	/* Convert a byte between binary and BCD. */
	365	static inline uint8_t to_bcd(uint8_t val)
	366	{
	367	return ((val / 10) << 4) \| (val % 10);
	368	}
	369
	370	static inline uint8_t from_bcd(uint8_t val)
	371	{
	372	return ((val >> 4) * 10) + (val & 0x0f);
	373	}
	374
338b922e	375	/* compute with 96 bit intermediate result: (ab)/c /
	376	static inline uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
	377	{
	378	union {
	379	uint64_t ll;
	380	struct {
	381	#ifdef HOST_WORDS_BIGENDIAN
	382	uint32_t high, low;
	383	#else
	384	uint32_t low, high;
	385	#endif
	386	} l;
	387	} u, res;
	388	uint64_t rl, rh;
	389
	390	u.ll = a;
	391	rl = (uint64_t)u.l.low * (uint64_t)b;
	392	rh = (uint64_t)u.l.high * (uint64_t)b;
	393	rh += (rl >> 32);
	394	res.l.high = rh / c;
	395	res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
	396	return res.ll;
	397	}
	398
3951690a SH	399	/* Round number down to multiple */
	400	#define QEMU_ALIGN_DOWN(n, m) ((n) / (m) * (m))
	401
	402	/* Round number up to multiple */
	403	#define QEMU_ALIGN_UP(n, m) QEMU_ALIGN_DOWN((n) + (m) - 1, (m))
	404
0bfe3ca5 AL	405	#include "module.h"
0bfe3ca5 AL	406
faf07963	407	#endif