Linux-side availability of live migration functionality

diff --git a/linux_module/palacios.h b/linux_module/palacios.h
index 43ffa57..fd5a188 100644 (file)
--- a/linux_module/palacios.h
+++ b/linux_module/palacios.h
@@ -31,6 +31,9 @@
 
 #define V3_VM_MOVE_CORE 33
 
+#define V3_VM_SEND    34
+#define V3_VM_RECEIVE 35
+
 #define V3_VM_FB_INPUT 257
 #define V3_VM_FB_QUERY 258
 

diff --git a/linux_module/vm.c b/linux_module/vm.c
index 1e9b275..b14cff4 100644 (file)
--- a/linux_module/vm.c
+++ b/linux_module/vm.c
@@ -209,6 +209,53 @@ static long v3_vm_ioctl(struct file * filp,
            break;
        }
 #endif
+
+#ifdef V3_CONFIG_LIVE_MIGRATION  
+       case V3_VM_SEND: {
+           struct v3_chkpt_info chkpt_info;
+           void __user * argp = (void __user *)arg;
+           
+           memset(&chkpt_info,0, sizeof(struct v3_chkpt_info));
+           
+           if(copy_from_user(&chkpt_info, argp, sizeof(struct v3_chkpt_info))){
+               WARNING("Copy from user error getting checkpoint info\n");
+               return -EFAULT;
+           }
+           
+           
+           NOTICE("Sending (live-migrating) Guest to %s:%s\n",chkpt_info.store, chkpt_info.url); 
+           
+           if (v3_send_vm(guest->v3_ctx, chkpt_info.store, chkpt_info.url) == -1) {
+               WARNING("Error sending VM\n");
+               return -EFAULT;
+           }
+           
+           break;
+       }
+
+       case V3_VM_RECEIVE: {
+           struct v3_chkpt_info chkpt_info;
+           void __user * argp = (void __user *)arg;
+           
+           memset(&chkpt_info,0, sizeof(struct v3_chkpt_info));
+
+           if(copy_from_user(&chkpt_info, argp, sizeof(struct v3_chkpt_info))){
+               WARNING("Copy from user error getting checkpoint info\n");
+               return -EFAULT;
+           }
+           
+           
+           NOTICE("Receiving (live-migrating) Guest to %s:%s\n",chkpt_info.store, chkpt_info.url);
+           
+           if (v3_receive_vm(guest->v3_ctx, chkpt_info.store, chkpt_info.url) == -1) {
+               WARNING("Error receiving VM\n");
+               return -EFAULT;
+           }
+           
+           break;
+       }
+#endif
+
        case V3_VM_DEBUG: {
            struct v3_debug_cmd cmd;
            struct v3_debug_event evt;