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/*
* QEMU System Emulator
*
* Copyright (c) 2003-2008 Fabrice Bellard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef TIMERS_STATE_H
#define TIMERS_STATE_H
/* timers state, for sharing between icount and cpu-timers */
typedef struct TimersState {
/* Protected by BQL. */
int64_t cpu_ticks_prev;
int64_t cpu_ticks_offset;
/*
* Protect fields that can be respectively read outside the
* BQL, and written from multiple threads.
*/
QemuSeqLock vm_clock_seqlock;
QemuSpin vm_clock_lock;
int16_t cpu_ticks_enabled;
/* Conversion factor from emulated instructions to virtual clock ticks. */
int16_t icount_time_shift;
/* Icount delta used for shift auto adjust. */
int64_t last_delta;
/* Compensate for varying guest execution speed. */
int64_t qemu_icount_bias;
int64_t vm_clock_warp_start;
int64_t cpu_clock_offset;
/* Only written by TCG thread */
int64_t qemu_icount;
/* for adjusting icount */
QEMUTimer *icount_rt_timer;
QEMUTimer *icount_vm_timer;
QEMUTimer *icount_warp_timer;
} TimersState;
extern TimersState timers_state;
/*
* icount needs this internal from cpu-timers when adjusting the icount shift.
*/
int64_t cpu_get_clock_locked(void);
#endif /* TIMERS_STATE_H */
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