X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fsvm.c;h=4a1b4044cd2d3bb1904da7cf5101cb176c764a54;hb=82b8b87c344fcd1eab22e3f3be5ad54cbb3f8f68;hp=6d8cdd28bfd350248c0ec029fd43c7cc4397bf65;hpb=50dd6f837443d6f5a8cfb2410f1f8d95e8367b6a;p=palacios.git

diff --git a/palacios/src/palacios/svm.c b/palacios/src/palacios/svm.c
index 6d8cdd2..4a1b404 100644
--- a/palacios/src/palacios/svm.c
+++ b/palacios/src/palacios/svm.c
@@ -277,10 +277,14 @@ static int start_svm_guest(struct guest_info *info) {
     //PrintDebugVMCB((vmcb_t*)(info->vmm_data));
     
     info->run_state = VM_RUNNING;
-    
+    rdtscll(info->yield_start_cycle);
+
+
     while (1) {
 	ullong_t tmp_tsc;
 	
+	// Conditionally yield the CPU if the timeslice has expired
+	v3_yield_cond(info);
 
 	/*
 	  PrintDebug("SVM Entry to CS=%p  rip=%p...\n", 
@@ -306,18 +310,24 @@ static int start_svm_guest(struct guest_info *info) {
 	// reenable global interrupts after vm exit
 	v3_stgi();
 
+
+	// Conditionally yield the CPU if the timeslice has expired
+	v3_yield_cond(info);
+
+
 	v3_update_time(info, tmp_tsc - info->time_state.cached_host_tsc);
 	num_exits++;
 	
 	if ((num_exits % 5000) == 0) {
 	    PrintDebug("SVM Exit number %d\n", num_exits);
 
+#ifdef CONFIG_PROFILE_VMM
 	    if (info->enable_profiler) {
 		v3_print_profile(info);
 	    }
+#endif
 	}
 
-     
 	if (v3_handle_svm_exit(info) != 0) {
 	    vmcb_ctrl_t * guest_ctrl = GET_VMCB_CTRL_AREA((vmcb_t*)(info->vmm_data));
 	    addr_t host_addr;