[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;
typedef struct MigrationParams MigrationParams;

/* 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);

/**
 * is_help_option:
 * @s: string to test
 *
 * Check whether @s is one of the standard strings which indicate
 * that the user is asking for a list of the valid values for a
 * command option like -cpu or -M. The current accepted strings
 * are 'help' and '?'. '?' is deprecated (it is a shell wildcard
 * which makes it annoying to use in a reliable way) but provided
 * for backwards compatibility.
 *
 * Returns: true if @s is a request for a list.
 */
static inline bool is_help_option(const char *s)
{
    return !strcmp(s, "?") || !strcmp(s, "help");
}

/* cutils.c */
void pstrcpy(char *buf, int buf_size, const char *str);
void strpadcpy(char *buf, int buf_size, const char *str, char pad);
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 ISADevice ISADevice;
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;

typedef struct PCIHostDeviceAddress {
    unsigned int domain;
    unsigned int bus;
    unsigned int slot;
    unsigned int function;
} PCIHostDeviceAddress;

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);

/* 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;
316378e4 JK	19	typedef struct Monitor Monitor;
6607ae23	20	typedef struct MigrationParams MigrationParams;
316378e4	21
faf07963 PB	22	/* we put basic includes here to avoid repeating them in device drivers */
	23	#include <stdlib.h>
	24	#include <stdio.h>
	25	#include <stdarg.h>
11165820	26	#include <stdbool.h>
faf07963	27	#include <string.h>
c8906845	28	#include <strings.h>
faf07963 PB	29	#include <inttypes.h>
	30	#include <limits.h>
	31	#include <time.h>
	32	#include <ctype.h>
	33	#include <errno.h>
	34	#include <unistd.h>
	35	#include <fcntl.h>
	36	#include <sys/stat.h>
dcfd0865	37	#include <sys/time.h>
55616505	38	#include <assert.h>
86f69a92	39	#include <signal.h>
14015304	40	#include <glib.h>
faf07963	41
082b5557 BS	42	#ifdef _WIN32
	43	#include "qemu-os-win32.h"
	44	#endif
	45
	46	#ifdef CONFIG_POSIX
	47	#include "qemu-os-posix.h"
	48	#endif
	49
faf07963 PB	50	#ifndef O_LARGEFILE
	51	#define O_LARGEFILE 0
	52	#endif
	53	#ifndef O_BINARY
	54	#define O_BINARY 0
	55	#endif
0e74e66b JQ	56	#ifndef MAP_ANONYMOUS
	57	#define MAP_ANONYMOUS MAP_ANON
	58	#endif
faf07963 PB	59	#ifndef ENOMEDIUM
	60	#define ENOMEDIUM ENODEV
	61	#endif
4c955388	62	#if !defined(ENOTSUP)
2880bc32 JQ	63	#define ENOTSUP 4096
2880bc32 JQ	64	#endif
2084a8e3 PB	65	#if !defined(ECANCELED)
	66	#define ECANCELED 4097
	67	#endif
3c9405a0 GH	68	#ifndef TIME_MAX
	69	#define TIME_MAX LONG_MAX
	70	#endif
faf07963	71
c0fd260e SW	72	/* HOST_LONG_BITS is the size of a native pointer in bits. */
	73	#if UINTPTR_MAX == UINT32_MAX
	74	# define HOST_LONG_BITS 32
	75	#elif UINTPTR_MAX == UINT64_MAX
	76	# define HOST_LONG_BITS 64
	77	#else
	78	# error Unknown pointer size
	79	#endif
	80
6114fdb0 JQ	81	#ifndef CONFIG_IOVEC
6114fdb0 JQ	82	#define CONFIG_IOVEC
bf9298b9 AL	83	struct iovec {
	84	void *iov_base;
	85	size_t iov_len;
	86	};
e2a305fb CH	87	/*
	88	* Use the same value as Linux for now.
	89	*/
	90	#define IOV_MAX 1024
331dadde BS	91	#else
331dadde BS	92	#include <sys/uio.h>
bf9298b9 AL	93	#endif
bf9298b9 AL	94
f868445a SW	95	typedef int (fprintf_function)(FILE f, const char *fmt, ...)
	96	GCC_FMT_ATTR(2, 3);
	97
faf07963	98	#ifdef _WIN32
faf07963	99	#define fsync _commit
371c6489 SW	100	#if !defined(lseek)
	101	# define lseek _lseeki64
	102	#endif
64b85a8f	103	int qemu_ftruncate64(int, int64_t);
371c6489 SW	104	#if !defined(ftruncate)
	105	# define ftruncate qemu_ftruncate64
	106	#endif
faf07963	107
faf07963 PB	108	static inline char realpath(const char path, char *resolved_path)
	109	{
	110	_fullpath(resolved_path, path, _MAX_PATH);
	111	return resolved_path;
	112	}
faf07963 PB	113	#endif
faf07963 PB	114
946fb27c PB	115	/* icount */
	116	void configure_icount(const char *option);
	117	extern int use_icount;
	118
faf07963 PB	119	/* FIXME: Remove NEED_CPU_H. */
	120	#ifndef NEED_CPU_H
	121
faf07963 PB	122	#include "osdep.h"
	123	#include "bswap.h"
	124
	125	#else
	126
	127	#include "cpu.h"
	128
	129	#endif /* !defined(NEED_CPU_H) */
	130
3bbbee18 AF	131	/* main function, renamed */
	132	#if defined(CONFIG_COCOA)
	133	int qemu_main(int argc, char argv, char envp);
	134	#endif
	135
f6503059 AZ	136	void qemu_get_timedate(struct tm *tm, int offset);
	137	int qemu_timedate_diff(struct tm *tm);
	138
c8057f95 PM	139	/**
	140	* is_help_option:
	141	* @s: string to test
	142	*
	143	* Check whether @s is one of the standard strings which indicate
	144	* that the user is asking for a list of the valid values for a
	145	* command option like -cpu or -M. The current accepted strings
	146	* are 'help' and '?'. '?' is deprecated (it is a shell wildcard
	147	* which makes it annoying to use in a reliable way) but provided
	148	* for backwards compatibility.
	149	*
	150	* Returns: true if @s is a request for a list.
	151	*/
	152	static inline bool is_help_option(const char *s)
	153	{
	154	return !strcmp(s, "?") \|\| !strcmp(s, "help");
	155	}
	156
faf07963 PB	157	/* cutils.c */
faf07963 PB	158	void pstrcpy(char buf, int buf_size, const char str);
2a025ae4	159	void strpadcpy(char buf, int buf_size, const char str, char pad);
faf07963 PB	160	char pstrcat(char buf, int buf_size, const char *s);
	161	int strstart(const char str, const char val, const char **ptr);
	162	int stristart(const char str, const char val, const char **ptr);
d43277c5	163	int qemu_strnlen(const char *s, int max_len);
faf07963	164	time_t mktimegm(struct tm *tm);
ad46db9a	165	int qemu_fls(int i);
6f1953c4	166	int qemu_fdatasync(int fd);
db1a4972	167	int fcntl_setfl(int fd, int flag);
443916d1	168	int qemu_parse_fd(const char *param);
d8427002	169
d7142456 JS	170	/*
	171	* strtosz() suffixes used to specify the default treatment of an
	172	* argument passed to strtosz() without an explicit suffix.
	173	* These should be defined using upper case characters in the range
	174	* A-Z, as strtosz() will use qemu_toupper() on the given argument
	175	* prior to comparison.
	176	*/
d8427002 JS	177	#define STRTOSZ_DEFSUFFIX_TB 'T'
	178	#define STRTOSZ_DEFSUFFIX_GB 'G'
	179	#define STRTOSZ_DEFSUFFIX_MB 'M'
	180	#define STRTOSZ_DEFSUFFIX_KB 'K'
	181	#define STRTOSZ_DEFSUFFIX_B 'B'
70b4f4bb JS	182	int64_t strtosz(const char nptr, char *end);
70b4f4bb JS	183	int64_t strtosz_suffix(const char nptr, char *end, const char default_suffix);
a732e1ba JR	184	int64_t strtosz_suffix_unit(const char nptr, char *end,
a732e1ba JR	185	const char default_suffix, int64_t unit);
faf07963	186
37022086 BS	187	/* path.c */
	188	void init_paths(const char *prefix);
	189	const char path(const char pathname);
	190
cd390083 BS	191	#define qemu_isalnum(c) isalnum((unsigned char)(c))
	192	#define qemu_isalpha(c) isalpha((unsigned char)(c))
	193	#define qemu_iscntrl(c) iscntrl((unsigned char)(c))
	194	#define qemu_isdigit(c) isdigit((unsigned char)(c))
	195	#define qemu_isgraph(c) isgraph((unsigned char)(c))
	196	#define qemu_islower(c) islower((unsigned char)(c))
	197	#define qemu_isprint(c) isprint((unsigned char)(c))
	198	#define qemu_ispunct(c) ispunct((unsigned char)(c))
	199	#define qemu_isspace(c) isspace((unsigned char)(c))
	200	#define qemu_isupper(c) isupper((unsigned char)(c))
	201	#define qemu_isxdigit(c) isxdigit((unsigned char)(c))
	202	#define qemu_tolower(c) tolower((unsigned char)(c))
	203	#define qemu_toupper(c) toupper((unsigned char)(c))
	204	#define qemu_isascii(c) isascii((unsigned char)(c))
	205	#define qemu_toascii(c) toascii((unsigned char)(c))
	206
b152aa84	207	void qemu_oom_check(void ptr);
ca10f867	208
40ff6d7e	209	int qemu_open(const char *name, int flags, ...);
7c7c0629 JQ	210	ssize_t qemu_write_full(int fd, const void *buf, size_t count)
7c7c0629 JQ	211	QEMU_WARN_UNUSED_RESULT;
993295fe PB	212	ssize_t qemu_send_full(int fd, const void *buf, size_t count, int flags)
993295fe PB	213	QEMU_WARN_UNUSED_RESULT;
8c5135f9	214	ssize_t qemu_recv_full(int fd, void *buf, size_t count, int flags)
993295fe	215	QEMU_WARN_UNUSED_RESULT;
40ff6d7e KW	216
40ff6d7e KW	217	#ifndef _WIN32
f3dfda61	218	int qemu_eventfd(int pipefd[2]);
40ff6d7e KW	219	int qemu_pipe(int pipefd[2]);
	220	#endif
	221
00aa0040 BS	222	#ifdef _WIN32
	223	#define qemu_recv(sockfd, buf, len, flags) recv(sockfd, (void *)buf, len, flags)
	224	#else
	225	#define qemu_recv(sockfd, buf, len, flags) recv(sockfd, buf, len, flags)
	226	#endif
	227
87ecb68b PB	228	/* Error handling. */
87ecb68b PB	229
e5924d89	230	void QEMU_NORETURN hw_error(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
87ecb68b	231
87ecb68b PB	232	struct ParallelIOArg {
	233	void *buffer;
	234	int count;
	235	};
	236
	237	typedef int (DMA_transfer_handler) (void opaque, int nchan, int pos, int size);
	238
	239	/* A load of opaque types so that device init declarations don't have to
	240	pull in all the real definitions. */
	241	typedef struct NICInfo NICInfo;
1ae26a18	242	typedef struct HCIInfo HCIInfo;
87ecb68b PB	243	typedef struct AudioState AudioState;
87ecb68b PB	244	typedef struct BlockDriverState BlockDriverState;
2446333c	245	typedef struct DriveInfo DriveInfo;
87ecb68b	246	typedef struct DisplayState DisplayState;
7d957bd8 AL	247	typedef struct DisplayChangeListener DisplayChangeListener;
7d957bd8 AL	248	typedef struct DisplaySurface DisplaySurface;
7b5d76da	249	typedef struct DisplayAllocator DisplayAllocator;
7d957bd8	250	typedef struct PixelFormat PixelFormat;
87ecb68b	251	typedef struct TextConsole TextConsole;
c60e08d9	252	typedef TextConsole QEMUConsole;
87ecb68b	253	typedef struct CharDriverState CharDriverState;
76d32cba	254	typedef struct MACAddr MACAddr;
87ecb68b	255	typedef struct VLANState VLANState;
f7105843	256	typedef struct VLANClientState VLANClientState;
87ecb68b	257	typedef struct i2c_bus i2c_bus;
48a18b3c	258	typedef struct ISABus ISABus;
dfc65f1f	259	typedef struct ISADevice ISADevice;
87ecb68b	260	typedef struct SMBusDevice SMBusDevice;
fb47a2e9 IY	261	typedef struct PCIHostState PCIHostState;
fb47a2e9 IY	262	typedef struct PCIExpressHost PCIExpressHost;
87ecb68b PB	263	typedef struct PCIBus PCIBus;
87ecb68b PB	264	typedef struct PCIDevice PCIDevice;
0428527c	265	typedef struct PCIExpressDevice PCIExpressDevice;
68f79994	266	typedef struct PCIBridge PCIBridge;
34e65944 IY	267	typedef struct PCIEAERMsg PCIEAERMsg;
	268	typedef struct PCIEAERLog PCIEAERLog;
	269	typedef struct PCIEAERErr PCIEAERErr;
bc20ba98 IY	270	typedef struct PCIEPort PCIEPort;
bc20ba98 IY	271	typedef struct PCIESlot PCIESlot;
14de9bab	272	typedef struct MSIMessage MSIMessage;
87ecb68b PB	273	typedef struct SerialState SerialState;
87ecb68b PB	274	typedef struct IRQState *qemu_irq;
bc24a225 PB	275	typedef struct PCMCIACardState PCMCIACardState;
	276	typedef struct MouseTransformInfo MouseTransformInfo;
	277	typedef struct uWireSlave uWireSlave;
	278	typedef struct I2SCodec I2SCodec;
90d37239	279	typedef struct SSIBus SSIBus;
2292b339	280	typedef struct EventNotifier EventNotifier;
2be24aaa	281	typedef struct VirtIODevice VirtIODevice;
d35bf9ad	282	typedef struct QEMUSGList QEMUSGList;
1dc324d2	283	typedef struct SHPCDevice SHPCDevice;
87ecb68b	284
186993ee MT	285	typedef uint64_t pcibus_t;
186993ee MT	286
4e4fa398 JK	287	typedef enum LostTickPolicy {
	288	LOST_TICK_DISCARD,
	289	LOST_TICK_DELAY,
	290	LOST_TICK_MERGE,
	291	LOST_TICK_SLEW,
1ce05125	292	LOST_TICK_MAX
4e4fa398 JK	293	} LostTickPolicy;
4e4fa398 JK	294
679042f0 AP	295	typedef struct PCIHostDeviceAddress {
	296	unsigned int domain;
	297	unsigned int bus;
	298	unsigned int slot;
	299	unsigned int function;
	300	} PCIHostDeviceAddress;
	301
d5ab9713 JK	302	void tcg_exec_init(unsigned long tb_size);
	303	bool tcg_enabled(void);
	304
	305	void cpu_exec_init_all(void);
d2053c3c	306
b3c7724c PB	307	/* CPU save/load. */
	308	void cpu_save(QEMUFile f, void opaque);
	309	int cpu_load(QEMUFile f, void opaque, int version_id);
	310
8edac960 AL	311	/* Unblock cpu */
8edac960 AL	312	void qemu_cpu_kick(void *env);
46d62fac	313	void qemu_cpu_kick_self(void);
b7680cb6	314	int qemu_cpu_is_self(void *env);
8edac960	315
e82bcec2 MT	316	/* work queue */
	317	struct qemu_work_item {
	318	struct qemu_work_item *next;
	319	void (func)(void data);
	320	void *data;
	321	int done;
	322	};
	323
0bf46a40 AL	324	#ifdef CONFIG_USER_ONLY
	325	#define qemu_init_vcpu(env) do { } while (0)
	326	#else
	327	void qemu_init_vcpu(void *env);
	328	#endif
	329
8c5135f9 PB	330
8c5135f9 PB	331	/**
2fc8ae1d MT	332	* Sends a (part of) iovec down a socket, yielding when the socket is full, or
	333	* Receives data into a (part of) iovec from a socket,
	334	* yielding when there is no data in the socket.
	335	* The same interface as qemu_sendv_recvv(), with added yielding.
	336	* XXX should mark these as coroutine_fn
8c5135f9	337	*/
2fc8ae1d MT	338	ssize_t qemu_co_sendv_recvv(int sockfd, struct iovec *iov, unsigned iov_cnt,
	339	size_t offset, size_t bytes, bool do_send);
	340	#define qemu_co_recvv(sockfd, iov, iov_cnt, offset, bytes) \
	341	qemu_co_sendv_recvv(sockfd, iov, iov_cnt, offset, bytes, false)
	342	#define qemu_co_sendv(sockfd, iov, iov_cnt, offset, bytes) \
	343	qemu_co_sendv_recvv(sockfd, iov, iov_cnt, offset, bytes, true)
8c5135f9 PB	344
8c5135f9 PB	345	/**
2fc8ae1d	346	* The same as above, but with just a single buffer
8c5135f9	347	*/
2fc8ae1d MT	348	ssize_t qemu_co_send_recv(int sockfd, void *buf, size_t bytes, bool do_send);
	349	#define qemu_co_recv(sockfd, buf, bytes) \
	350	qemu_co_send_recv(sockfd, buf, bytes, false)
	351	#define qemu_co_send(sockfd, buf, bytes) \
	352	qemu_co_send_recv(sockfd, buf, bytes, true)
8c5135f9	353
44e3ee8a AL	354	typedef struct QEMUIOVector {
	355	struct iovec *iov;
	356	int niov;
	357	int nalloc;
249aa745	358	size_t size;
44e3ee8a AL	359	} QEMUIOVector;
	360
	361	void qemu_iovec_init(QEMUIOVector *qiov, int alloc_hint);
522584a5	362	void qemu_iovec_init_external(QEMUIOVector qiov, struct iovec iov, int niov);
44e3ee8a	363	void qemu_iovec_add(QEMUIOVector qiov, void base, size_t len);
1b093c48 MT	364	void qemu_iovec_concat(QEMUIOVector *dst,
1b093c48 MT	365	QEMUIOVector *src, size_t soffset, size_t sbytes);
44e3ee8a	366	void qemu_iovec_destroy(QEMUIOVector *qiov);
be959463	367	void qemu_iovec_reset(QEMUIOVector *qiov);
d5e6b161 MT	368	size_t qemu_iovec_to_buf(QEMUIOVector *qiov, size_t offset,
d5e6b161 MT	369	void *buf, size_t bytes);
03396148 MT	370	size_t qemu_iovec_from_buf(QEMUIOVector *qiov, size_t offset,
03396148 MT	371	const void *buf, size_t bytes);
3d9b4925 MT	372	size_t qemu_iovec_memset(QEMUIOVector *qiov, size_t offset,
3d9b4925 MT	373	int fillc, size_t bytes);
44e3ee8a	374
1a6d39fd SH	375	bool buffer_is_zero(const void *buf, size_t len);
1a6d39fd SH	376
6b837bc4 JS	377	void qemu_progress_init(int enabled, float min_skip);
6b837bc4 JS	378	void qemu_progress_end(void);
3bfe4dbf	379	void qemu_progress_print(float delta, int max);
6b837bc4	380
082b5557 BS	381	#define QEMU_FILE_TYPE_BIOS 0
	382	#define QEMU_FILE_TYPE_KEYMAP 1
	383	char qemu_find_file(int type, const char name);
	384
	385	/* OS specific functions */
	386	void os_setup_early_signal_handling(void);
	387	char os_find_datadir(const char argv0);
	388	void os_parse_cmd_args(int index, const char *optarg);
	389	void os_pidfile_error(void);
	390
abd0c6bd PB	391	/* Convert a byte between binary and BCD. */
	392	static inline uint8_t to_bcd(uint8_t val)
	393	{
	394	return ((val / 10) << 4) \| (val % 10);
	395	}
	396
	397	static inline uint8_t from_bcd(uint8_t val)
	398	{
	399	return ((val >> 4) * 10) + (val & 0x0f);
	400	}
	401
338b922e	402	/* compute with 96 bit intermediate result: (ab)/c /
	403	static inline uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
	404	{
	405	union {
	406	uint64_t ll;
	407	struct {
	408	#ifdef HOST_WORDS_BIGENDIAN
	409	uint32_t high, low;
	410	#else
	411	uint32_t low, high;
	412	#endif
	413	} l;
	414	} u, res;
	415	uint64_t rl, rh;
	416
	417	u.ll = a;
	418	rl = (uint64_t)u.l.low * (uint64_t)b;
	419	rh = (uint64_t)u.l.high * (uint64_t)b;
	420	rh += (rl >> 32);
	421	res.l.high = rh / c;
	422	res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
	423	return res.ll;
	424	}
	425
3951690a SH	426	/* Round number down to multiple */
	427	#define QEMU_ALIGN_DOWN(n, m) ((n) / (m) * (m))
	428
	429	/* Round number up to multiple */
	430	#define QEMU_ALIGN_UP(n, m) QEMU_ALIGN_DOWN((n) + (m) - 1, (m))
	431
0bfe3ca5 AL	432	#include "module.h"
0bfe3ca5 AL	433
faf07963	434	#endif