From: Diana Palsetia, Steve Rangel, and Mark Cartwright <dianapalsetia2015@u.northwestern.edu,steverangel@u.northwestern.edu,mcartwright@gmail.com>
Date: Thu, 19 Jul 2012 21:36:43 +0000 (-0500)
Subject: Linux-side availability of live migration functionality
X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=commitdiff_plain;h=4b9f54d875c87a0b06337fb64239278d6cfc02fa;p=palacios.git

Linux-side availability of live migration functionality
---

diff --git a/linux_module/palacios.h b/linux_module/palacios.h
index 43ffa57..fd5a188 100644
--- 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
--- 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;