X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fsvm.c;h=975010f47348b7a3ec41e62da9eb744041c7b007;hb=5759b7f644b659d0dbde6f5a7e21a88514cbe32d;hp=a88ff0e097a525125fba75abb7311f88264f18ba;hpb=3a0ee76fe3accce60ae161615cadc6e56cac008b;p=palacios.git

diff --git a/palacios/src/palacios/svm.c b/palacios/src/palacios/svm.c
index a88ff0e..975010f 100644
--- a/palacios/src/palacios/svm.c
+++ b/palacios/src/palacios/svm.c
@@ -64,7 +64,15 @@ extern int v3_svm_launch(vmcb_t * vmcb, struct v3_gprs * vm_regs, vmcb_t * host_
 
 
 static vmcb_t * Allocate_VMCB() {
-    vmcb_t * vmcb_page = (vmcb_t *)V3_VAddr(V3_AllocPages(1));
+    vmcb_t * vmcb_page = NULL;
+    addr_t vmcb_pa = (addr_t)V3_AllocPages(1);
+
+    if ((void *)vmcb_pa == NULL) {
+	PrintError("Error allocating VMCB\n");
+	return NULL;
+    }
+
+    vmcb_page = (vmcb_t *)V3_VAddr((void *)vmcb_pa);
 
     memset(vmcb_page, 0, 4096);
 
@@ -279,6 +287,11 @@ int v3_init_svm_vmcb(struct guest_info * info, v3_vm_class_t vm_class) {
     PrintDebug("Allocating VMCB\n");
     info->vmm_data = (void*)Allocate_VMCB();
     
+    if (info->vmm_data == NULL) {
+	PrintError("Could not allocate VMCB, Exiting...\n");
+	return -1;
+    }
+
     if (vm_class == V3_PC_VM) {
 	PrintDebug("Initializing VMCB (addr=%p)\n", (void *)info->vmm_data);
 	Init_VMCB_BIOS((vmcb_t*)(info->vmm_data), info);
@@ -427,7 +440,6 @@ int v3_svm_enter(struct guest_info * info) {
     vmcb_saved_state_t * guest_state = GET_VMCB_SAVE_STATE_AREA((vmcb_t*)(info->vmm_data)); 
     addr_t exit_code = 0, exit_info1 = 0, exit_info2 = 0;
 
-    v3_update_timers(info);
     v3_adjust_time(info);
 
     // Conditionally yield the CPU if the timeslice has expired
@@ -480,6 +492,7 @@ int v3_svm_enter(struct guest_info * info) {
     }
 #endif
 
+    v3_update_timers(info);
     guest_ctrl->TSC_OFFSET = v3_tsc_host_offset(&info->time_state);
 
     //V3_Print("Calling v3_svm_launch\n");