From: Kyle Hale <kh@u.northwestern.edu>
Date: Wed, 27 Jun 2012 23:48:39 +0000 (-0500)
Subject: don't allow launch of an already running VM
X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=commitdiff_plain;h=36973b53a5876a555eb59be0b0fb5f1f49686696;p=palacios.releases.git

don't allow launch of an already running VM
---

diff --git a/palacios/src/palacios/vmm.c b/palacios/src/palacios/vmm.c
index 1bd489b..30fa2e6 100644
--- a/palacios/src/palacios/vmm.c
+++ b/palacios/src/palacios/vmm.c
@@ -255,6 +255,14 @@ int v3_start_vm(struct v3_vm_info * vm, unsigned int cpu_mask) {
     uint32_t avail_cores = 0;
     int vcore_id = 0;
 
+
+    if (vm->run_state == VM_RUNNING ||
+        vm->run_state == VM_INVALID ||
+        vm->run_state == VM_ERROR) {
+        PrintError("VM has already been launched (state=%d)\n", (int)vm->run_state);
+        return -1;
+    }
+
     /// CHECK IF WE ARE MULTICORE ENABLED....
 
     V3_Print("V3 --  Starting VM (%u cores)\n", vm->num_cores);