palacios/src/palacios/vmm_time.c

   1 #include "palacios/vmm_time.h"
   2 #include "palacios/vmm.h"
   3
   4
   5 void v3_init_time(struct vm_time * time_state) {
   6   ullong_t cpu_khz = 0;
   7
   8   V3_CPU_KHZ(cpu_khz);
   9   time_state->cpu_freq = cpu_khz;
  10
  11   PrintDebug("CPU KHZ = HI=%x LO=%x\n", (uint_t)(cpu_khz >> 32), (uint_t)cpu_khz);
  12
  13   time_state->guest_tsc = 0;
  14   time_state->cached_host_tsc = 0;
  15   // time_state->pending_cycles = 0;
  16
  17   INIT_LIST_HEAD(&(time_state->timers));
  18   time_state->num_timers = 0;
  19 }
  20
  21
  22 int v3_add_timer(struct guest_info * info, struct vm_timer_ops * ops, void * private_data) {
  23   struct vm_timer * timer = NULL;
  24   timer = (struct vm_timer *)V3_Malloc(sizeof(struct vm_timer));
  25   V3_ASSERT(timer != NULL);
  26
  27   timer->ops = ops;
  28   timer->private_data = private_data;
  29
  30   list_add(&(timer->timer_link), &(info->time_state.timers));
  31   info->time_state.num_timers++;
  32
  33   return 0;
  34 }
  35
  36
  37 int v3_remove_timer(struct guest_info * info, struct vm_timer * timer) {
  38   list_del(&(timer->timer_link));
  39   info->time_state.num_timers--;
  40
  41   V3_Free(timer);
  42   return 0;
  43 }
  44
  45
  46
  47 void v3_update_time(struct guest_info * info, ullong_t cycles) {
  48   struct vm_timer * tmp_timer;
  49
  50   info->time_state.guest_tsc += cycles;
  51
  52   list_for_each_entry(tmp_timer, &(info->time_state.timers), timer_link) {
  53     tmp_timer->ops->update_time(cycles, info->time_state.cpu_freq, tmp_timer->private_data);
  54   }
  55
  56
  57
  58   //info->time_state.pending_cycles = 0;
  59 }