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/******************************************************************************
* time.h
*
* Copyright (c) 2002-2003 Rolf Neugebauer
* Copyright (c) 2002-2005 K A Fraser
*/
#ifndef __XEN_TIME_H__
#define __XEN_TIME_H__
#include <xen/types.h>
#include <public/xen.h>
#include <asm/time.h>
extern int init_xen_time(void);
extern void cstate_restore_tsc(void);
extern unsigned long cpu_khz;
struct domain;
/*
* System Time
* 64 bit value containing the nanoseconds elapsed since boot time.
* This value is adjusted by frequency drift.
* NOW() returns the current time.
* The other macros are for convenience to approximate short intervals
* of real time into system time
*/
typedef s64 s_time_t;
s_time_t get_s_time(void);
unsigned long get_localtime(struct domain *d);
struct tm {
int tm_sec; /* seconds */
int tm_min; /* minutes */
int tm_hour; /* hours */
int tm_mday; /* day of the month */
int tm_mon; /* month */
int tm_year; /* year */
int tm_wday; /* day of the week */
int tm_yday; /* day in the year */
int tm_isdst; /* daylight saving time */
};
struct tm gmtime(unsigned long t);
#define SYSTEM_TIME_HZ 1000000000ULL
#define NOW() ((s_time_t)get_s_time())
#define SECONDS(_s) ((s_time_t)((_s) * 1000000000ULL))
#define MILLISECS(_ms) ((s_time_t)((_ms) * 1000000ULL))
#define MICROSECS(_us) ((s_time_t)((_us) * 1000ULL))
#define STIME_MAX ((s_time_t)((uint64_t)~0ull>>1))
extern void update_vcpu_system_time(struct vcpu *v);
extern void update_domain_wallclock_time(struct domain *d);
extern void do_settime(
unsigned long secs, unsigned long nsecs, u64 system_time_base);
extern void send_timer_event(struct vcpu *v);
void domain_set_time_offset(struct domain *d, int32_t time_offset_seconds);
#endif /* __XEN_TIME_H__ */
/*
* Local variables:
* mode: C
* c-set-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/
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