PMU-based telemetry extension to monitor guest and host behavior

[palacios.git] / palacios / src / palacios / svm.c

diff --git a/palacios/src/palacios/svm.c b/palacios/src/palacios/svm.c
index 448e5af..b54ab19 100644 (file)
--- a/palacios/src/palacios/svm.c
+++ b/palacios/src/palacios/svm.c
@@ -694,12 +694,18 @@ int v3_svm_enter(struct guest_info * info) {
        uint64_t entry_tsc = 0;
        uint64_t exit_tsc = 0;
        
+#ifdef V3_CONFIG_PMU_TELEMETRY
+       v3_pmu_telemetry_enter(info);
+#endif
        rdtscll(entry_tsc);
 
        v3_svm_launch((vmcb_t *)V3_PAddr(info->vmm_data), &(info->vm_regs), (vmcb_t *)host_vmcbs[V3_Get_CPU()]);
 
        rdtscll(exit_tsc);
 
+#ifdef V3_CONFIG_PMU_TELEMETRY
+       v3_pmu_telemetry_exit(info);
+#endif
        guest_cycles = exit_tsc - entry_tsc;
     }
 
@@ -829,6 +835,10 @@ int v3_start_svm_guest(struct guest_info * info) {
     
     v3_start_time(info);
 
+#ifdef V3_CONFIG_PMU_TELEMETRY
+    v3_pmu_telemetry_start(info);
+#endif
+
     while (1) {
 
        if (info->vm_info->run_state == VM_STOPPED) {
@@ -892,6 +902,9 @@ int v3_start_svm_guest(struct guest_info * info) {
        
     }
 
+#ifdef V3_CONFIG_PMU_TELEMETRY
+    v3_pmu_telemetry_end(info);
+#endif
     // Need to take down the other cores on error... 
 
     return 0;