471 lines
14 KiB
C
471 lines
14 KiB
C
|
|
/* 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);
|
|
int qemu_parse_fdset(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, ...);
|
|
int qemu_close(int fd);
|
|
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
|
|
/* MinGW needs type casts for the 'buf' and 'optval' arguments. */
|
|
#define qemu_getsockopt(sockfd, level, optname, optval, optlen) \
|
|
getsockopt(sockfd, level, optname, (void *)optval, optlen)
|
|
#define qemu_setsockopt(sockfd, level, optname, optval, optlen) \
|
|
setsockopt(sockfd, level, optname, (const void *)optval, optlen)
|
|
#define qemu_recv(sockfd, buf, len, flags) recv(sockfd, (void *)buf, len, flags)
|
|
#define qemu_sendto(sockfd, buf, len, flags, destaddr, addrlen) \
|
|
sendto(sockfd, (const void *)buf, len, flags, destaddr, addrlen)
|
|
#else
|
|
#define qemu_getsockopt(sockfd, level, optname, optval, optlen) \
|
|
getsockopt(sockfd, level, optname, optval, optlen)
|
|
#define qemu_setsockopt(sockfd, level, optname, optval, optlen) \
|
|
setsockopt(sockfd, level, optname, optval, optlen)
|
|
#define qemu_recv(sockfd, buf, len, flags) recv(sockfd, buf, len, flags)
|
|
#define qemu_sendto(sockfd, buf, len, flags, destaddr, addrlen) \
|
|
sendto(sockfd, buf, len, flags, destaddr, addrlen)
|
|
#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 NetClientState NetClientState;
|
|
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);
|
|
const char *qemu_get_vm_name(void);
|
|
|
|
#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))
|
|
|
|
static inline bool is_power_of_2(uint64_t value)
|
|
{
|
|
if (!value) {
|
|
return 0;
|
|
}
|
|
|
|
return !(value & (value - 1));
|
|
}
|
|
|
|
/* round down to the nearest power of 2*/
|
|
int64_t pow2floor(int64_t value);
|
|
|
|
#include "module.h"
|
|
|
|
/*
|
|
* Implementation of ULEB128 (http://en.wikipedia.org/wiki/LEB128)
|
|
* Input is limited to 14-bit numbers
|
|
*/
|
|
|
|
int uleb128_encode_small(uint8_t *out, uint32_t n);
|
|
int uleb128_decode_small(const uint8_t *in, uint32_t *n);
|
|
|
|
#endif
|