include/sysemu/dirtylimit.h

   1 /*
   2  * Dirty page rate limit common functions
   3  *
   4  * Copyright (c) 2022 CHINA TELECOM CO.,LTD.
   5  *
   6  * Authors:
   7  *  Hyman Huang(黄勇) <huangy81@chinatelecom.cn>
   8  *
   9  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  10  * See the COPYING file in the top-level directory.
  11  */
  12 #ifndef QEMU_DIRTYRLIMIT_H
  13 #define QEMU_DIRTYRLIMIT_H
  14
  15 #define DIRTYLIMIT_CALC_TIME_MS         1000    /* 1000ms */
  16
  17 int64_t vcpu_dirty_rate_get(int cpu_index);
  18 void vcpu_dirty_rate_stat_start(void);
  19 void vcpu_dirty_rate_stat_stop(void);
  20 void vcpu_dirty_rate_stat_initialize(void);
  21 void vcpu_dirty_rate_stat_finalize(void);
  22
  23 void dirtylimit_state_lock(void);
  24 void dirtylimit_state_unlock(void);
  25 void dirtylimit_state_initialize(void);
  26 void dirtylimit_state_finalize(void);
  27 bool dirtylimit_in_service(void);
  28 bool dirtylimit_vcpu_index_valid(int cpu_index);
  29 void dirtylimit_process(void);
  30 void dirtylimit_change(bool start);
  31 void dirtylimit_set_vcpu(int cpu_index,
  32                          uint64_t quota,
  33                          bool enable);
  34 void dirtylimit_set_all(uint64_t quota,
  35                         bool enable);
  36 void dirtylimit_vcpu_execute(CPUState *cpu);
  37 uint64_t dirtylimit_throttle_time_per_round(void);
  38 uint64_t dirtylimit_ring_full_time(void);
  39 #endif