*/
int v3_vmx_enter(struct guest_info * info) {
int ret = 0;
- uint64_t tmp_tsc = 0;
+ uint32_t tsc_offset_low, tsc_offset_high;
struct vmx_exit_info exit_info;
// Conditionally yield the CPU if the timeslice has expired
v3_yield_cond(info);
-
// v3_print_guest_state(info);
// disable global interrupts for vm state transition
vmcs_write(VMCS_GUEST_CR3, guest_cr3);
}
- // We do timer injection here to track real host time.
- rdtscll(tmp_tsc);
- v3_update_time(info, tmp_tsc - info->time_state.cached_host_tsc);
- rdtscll(info->time_state.cached_host_tsc);
+ v3_update_timers(info);
+ v3_resume_time(info);
+ tsc_offset_high =
+ (uint32_t)((info->time_state.host_offset >> 32) & 0xffffffff);
+ tsc_offset_low = (uint32_t)(info->time_state.host_offset & 0xffffffff);
+ check_vmcs_write(VMCS_TSC_OFFSET_HIGH, tsc_offset_high);
+ check_vmcs_write(VMCS_TSC_OFFSET, tsc_offset_low);
+
if (info->vm_info->run_state == VM_STOPPED) {
info->vm_info->run_state = VM_RUNNING;
ret = v3_vmx_launch(&(info->vm_regs), info, &(info->ctrl_regs));
return -1;
}
- // rdtscll(tmp_tsc);
- // v3_update_time(info, tmp_tsc - info->time_state.cached_host_tsc);
+ v3_pause_time(info);
+#ifdef OPTION_TIME_MASK_OVERHEAD
+ v3_offset_time(info, -VMX_ENTRY_OVERHEAD);
+#endif
info->num_exits++;
-
/* Update guest state */
v3_vmx_save_vmcs(info);
PrintDebug("Launching VMX guest\n");
- rdtscll(info->time_state.cached_host_tsc);
-
+ v3_start_time(info);
while (1) {
if (v3_vmx_enter(info) == -1) {