mirror of
https://github.com/qemu/qemu.git
synced 2024-11-30 07:13:38 +08:00
41bd13afda
Currently there's no way to unregister a savevm callback, so e.g. if a NIC is hot-unplugged and a savevm is issued, we'll segfault. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7148 c046a42c-6fe2-441c-8c8c-71466251a162
258 lines
7.2 KiB
C
258 lines
7.2 KiB
C
/* Declarations for use by hardware emulation. */
|
|
#ifndef QEMU_HW_H
|
|
#define QEMU_HW_H
|
|
|
|
#include "qemu-common.h"
|
|
#include "irq.h"
|
|
|
|
/* VM Load/Save */
|
|
|
|
/* This function writes a chunk of data to a file at the given position.
|
|
* The pos argument can be ignored if the file is only being used for
|
|
* streaming. The handler should try to write all of the data it can.
|
|
*/
|
|
typedef int (QEMUFilePutBufferFunc)(void *opaque, const uint8_t *buf,
|
|
int64_t pos, int size);
|
|
|
|
/* Read a chunk of data from a file at the given position. The pos argument
|
|
* can be ignored if the file is only be used for streaming. The number of
|
|
* bytes actually read should be returned.
|
|
*/
|
|
typedef int (QEMUFileGetBufferFunc)(void *opaque, uint8_t *buf,
|
|
int64_t pos, int size);
|
|
|
|
/* Close a file and return an error code */
|
|
typedef int (QEMUFileCloseFunc)(void *opaque);
|
|
|
|
/* Called to determine if the file has exceeded it's bandwidth allocation. The
|
|
* bandwidth capping is a soft limit, not a hard limit.
|
|
*/
|
|
typedef int (QEMUFileRateLimit)(void *opaque);
|
|
|
|
QEMUFile *qemu_fopen_ops(void *opaque, QEMUFilePutBufferFunc *put_buffer,
|
|
QEMUFileGetBufferFunc *get_buffer,
|
|
QEMUFileCloseFunc *close,
|
|
QEMUFileRateLimit *rate_limit);
|
|
QEMUFile *qemu_fopen(const char *filename, const char *mode);
|
|
QEMUFile *qemu_fopen_socket(int fd);
|
|
QEMUFile *qemu_popen(FILE *popen_file, const char *mode);
|
|
QEMUFile *qemu_popen_cmd(const char *command, const char *mode);
|
|
void qemu_fflush(QEMUFile *f);
|
|
int qemu_fclose(QEMUFile *f);
|
|
void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, int size);
|
|
void qemu_put_byte(QEMUFile *f, int v);
|
|
|
|
static inline void qemu_put_ubyte(QEMUFile *f, unsigned int v)
|
|
{
|
|
qemu_put_byte(f, (int)v);
|
|
}
|
|
|
|
#define qemu_put_sbyte qemu_put_byte
|
|
|
|
void qemu_put_be16(QEMUFile *f, unsigned int v);
|
|
void qemu_put_be32(QEMUFile *f, unsigned int v);
|
|
void qemu_put_be64(QEMUFile *f, uint64_t v);
|
|
int qemu_get_buffer(QEMUFile *f, uint8_t *buf, int size);
|
|
int qemu_get_byte(QEMUFile *f);
|
|
|
|
static inline unsigned int qemu_get_ubyte(QEMUFile *f)
|
|
{
|
|
return (unsigned int)qemu_get_byte(f);
|
|
}
|
|
|
|
#define qemu_get_sbyte qemu_get_byte
|
|
|
|
unsigned int qemu_get_be16(QEMUFile *f);
|
|
unsigned int qemu_get_be32(QEMUFile *f);
|
|
uint64_t qemu_get_be64(QEMUFile *f);
|
|
int qemu_file_rate_limit(QEMUFile *f);
|
|
int qemu_file_has_error(QEMUFile *f);
|
|
void qemu_file_set_error(QEMUFile *f);
|
|
|
|
/* Try to send any outstanding data. This function is useful when output is
|
|
* halted due to rate limiting or EAGAIN errors occur as it can be used to
|
|
* resume output. */
|
|
void qemu_file_put_notify(QEMUFile *f);
|
|
|
|
static inline void qemu_put_be64s(QEMUFile *f, const uint64_t *pv)
|
|
{
|
|
qemu_put_be64(f, *pv);
|
|
}
|
|
|
|
static inline void qemu_put_be32s(QEMUFile *f, const uint32_t *pv)
|
|
{
|
|
qemu_put_be32(f, *pv);
|
|
}
|
|
|
|
static inline void qemu_put_be16s(QEMUFile *f, const uint16_t *pv)
|
|
{
|
|
qemu_put_be16(f, *pv);
|
|
}
|
|
|
|
static inline void qemu_put_8s(QEMUFile *f, const uint8_t *pv)
|
|
{
|
|
qemu_put_byte(f, *pv);
|
|
}
|
|
|
|
static inline void qemu_get_be64s(QEMUFile *f, uint64_t *pv)
|
|
{
|
|
*pv = qemu_get_be64(f);
|
|
}
|
|
|
|
static inline void qemu_get_be32s(QEMUFile *f, uint32_t *pv)
|
|
{
|
|
*pv = qemu_get_be32(f);
|
|
}
|
|
|
|
static inline void qemu_get_be16s(QEMUFile *f, uint16_t *pv)
|
|
{
|
|
*pv = qemu_get_be16(f);
|
|
}
|
|
|
|
static inline void qemu_get_8s(QEMUFile *f, uint8_t *pv)
|
|
{
|
|
*pv = qemu_get_byte(f);
|
|
}
|
|
|
|
// Signed versions for type safety
|
|
static inline void qemu_put_sbuffer(QEMUFile *f, const int8_t *buf, int size)
|
|
{
|
|
qemu_put_buffer(f, (const uint8_t *)buf, size);
|
|
}
|
|
|
|
static inline void qemu_put_sbe16(QEMUFile *f, int v)
|
|
{
|
|
qemu_put_be16(f, (unsigned int)v);
|
|
}
|
|
|
|
static inline void qemu_put_sbe32(QEMUFile *f, int v)
|
|
{
|
|
qemu_put_be32(f, (unsigned int)v);
|
|
}
|
|
|
|
static inline void qemu_put_sbe64(QEMUFile *f, int64_t v)
|
|
{
|
|
qemu_put_be64(f, (uint64_t)v);
|
|
}
|
|
|
|
static inline size_t qemu_get_sbuffer(QEMUFile *f, int8_t *buf, int size)
|
|
{
|
|
return qemu_get_buffer(f, (uint8_t *)buf, size);
|
|
}
|
|
|
|
static inline int qemu_get_sbe16(QEMUFile *f)
|
|
{
|
|
return (int)qemu_get_be16(f);
|
|
}
|
|
|
|
static inline int qemu_get_sbe32(QEMUFile *f)
|
|
{
|
|
return (int)qemu_get_be32(f);
|
|
}
|
|
|
|
static inline int64_t qemu_get_sbe64(QEMUFile *f)
|
|
{
|
|
return (int64_t)qemu_get_be64(f);
|
|
}
|
|
|
|
static inline void qemu_put_s8s(QEMUFile *f, const int8_t *pv)
|
|
{
|
|
qemu_put_8s(f, (const uint8_t *)pv);
|
|
}
|
|
|
|
static inline void qemu_put_sbe16s(QEMUFile *f, const int16_t *pv)
|
|
{
|
|
qemu_put_be16s(f, (const uint16_t *)pv);
|
|
}
|
|
|
|
static inline void qemu_put_sbe32s(QEMUFile *f, const int32_t *pv)
|
|
{
|
|
qemu_put_be32s(f, (const uint32_t *)pv);
|
|
}
|
|
|
|
static inline void qemu_put_sbe64s(QEMUFile *f, const int64_t *pv)
|
|
{
|
|
qemu_put_be64s(f, (const uint64_t *)pv);
|
|
}
|
|
|
|
static inline void qemu_get_s8s(QEMUFile *f, int8_t *pv)
|
|
{
|
|
qemu_get_8s(f, (uint8_t *)pv);
|
|
}
|
|
|
|
static inline void qemu_get_sbe16s(QEMUFile *f, int16_t *pv)
|
|
{
|
|
qemu_get_be16s(f, (uint16_t *)pv);
|
|
}
|
|
|
|
static inline void qemu_get_sbe32s(QEMUFile *f, int32_t *pv)
|
|
{
|
|
qemu_get_be32s(f, (uint32_t *)pv);
|
|
}
|
|
|
|
static inline void qemu_get_sbe64s(QEMUFile *f, int64_t *pv)
|
|
{
|
|
qemu_get_be64s(f, (uint64_t *)pv);
|
|
}
|
|
|
|
#ifdef NEED_CPU_H
|
|
#if TARGET_LONG_BITS == 64
|
|
#define qemu_put_betl qemu_put_be64
|
|
#define qemu_get_betl qemu_get_be64
|
|
#define qemu_put_betls qemu_put_be64s
|
|
#define qemu_get_betls qemu_get_be64s
|
|
#define qemu_put_sbetl qemu_put_sbe64
|
|
#define qemu_get_sbetl qemu_get_sbe64
|
|
#define qemu_put_sbetls qemu_put_sbe64s
|
|
#define qemu_get_sbetls qemu_get_sbe64s
|
|
#else
|
|
#define qemu_put_betl qemu_put_be32
|
|
#define qemu_get_betl qemu_get_be32
|
|
#define qemu_put_betls qemu_put_be32s
|
|
#define qemu_get_betls qemu_get_be32s
|
|
#define qemu_put_sbetl qemu_put_sbe32
|
|
#define qemu_get_sbetl qemu_get_sbe32
|
|
#define qemu_put_sbetls qemu_put_sbe32s
|
|
#define qemu_get_sbetls qemu_get_sbe32s
|
|
#endif
|
|
#endif
|
|
|
|
int64_t qemu_ftell(QEMUFile *f);
|
|
int64_t qemu_fseek(QEMUFile *f, int64_t pos, int whence);
|
|
|
|
typedef void SaveStateHandler(QEMUFile *f, void *opaque);
|
|
typedef int SaveLiveStateHandler(QEMUFile *f, int stage, void *opaque);
|
|
typedef int LoadStateHandler(QEMUFile *f, void *opaque, int version_id);
|
|
|
|
int register_savevm(const char *idstr,
|
|
int instance_id,
|
|
int version_id,
|
|
SaveStateHandler *save_state,
|
|
LoadStateHandler *load_state,
|
|
void *opaque);
|
|
|
|
int register_savevm_live(const char *idstr,
|
|
int instance_id,
|
|
int version_id,
|
|
SaveLiveStateHandler *save_live_state,
|
|
SaveStateHandler *save_state,
|
|
LoadStateHandler *load_state,
|
|
void *opaque);
|
|
|
|
void unregister_savevm(const char *idstr, void *opaque);
|
|
|
|
typedef void QEMUResetHandler(void *opaque);
|
|
|
|
void qemu_register_reset(QEMUResetHandler *func, void *opaque);
|
|
|
|
/* handler to set the boot_device for a specific type of QEMUMachine */
|
|
/* return 0 if success */
|
|
typedef int QEMUBootSetHandler(void *opaque, const char *boot_device);
|
|
void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque);
|
|
|
|
/* These should really be in isa.h, but are here to make pc.h happy. */
|
|
typedef void (IOPortWriteFunc)(void *opaque, uint32_t address, uint32_t data);
|
|
typedef uint32_t (IOPortReadFunc)(void *opaque, uint32_t address);
|
|
|
|
#endif
|