Fix xen build

Makefile.am

@@ -5,6 +5,12 @@ else
 XEN_BUILD_TAG=
 endif
 
+if WITH_XEN490
+XEN490_BUILD_TAG=with_xen490
+else
+XEN490_BUILD_TAG=
+endif
+
 if WITH_LIBVIRT
 LIBVIRT_BUILD_TAG=with_libvirt
 else
@@ -13,7 +19,7 @@ endif
 
 COMMIT=`git describe --dirty --always --tags 2> /dev/null || true`
 GOLDFLAGS="-X main.gitCommit=${COMMIT} -X main.version=${VERSION}"
-HYPER_BULD_TAGS=$(XEN_BUILD_TAG) $(LIBVIRT_BUILD_TAG)
+HYPER_BULD_TAGS=$(XEN_BUILD_TAG) $(XEN490_BUILD_TAG) $(LIBVIRT_BUILD_TAG)
 
 all-local: build-runv
 clean-local:

configure.ac

@@ -70,11 +70,23 @@ if test "x$with_xen" != "xno" ; then
     fi
 fi
 
+XEN_REQUIRED="4.5.0"
+XENPV_REQUIRED="4.9.0"
+
+if test "$with_xen" = yes; then
+	PKG_CHECK_MODULES([xenlight], [xenlight >= $XEN_REQUIRED], [with_xen=yes], [with_xen=no])
+	PKG_CHECK_MODULES([xenlight], [xenlight >= $XENPV_REQUIRED], [with_xen490=yes], [with_xen490=no])
+fi
+
 if test "x$with_xen" != "xno" ; then
-    AC_DEFINE_UNQUOTED([WITH_XEN], 1, [run hyperd with xen])
+    AC_DEFINE_UNQUOTED([WITH_XEN], 1, [run runv with xen])
+fi
+if test "x$with_xen490" = "xyes" ; then
+    AC_DEFINE_UNQUOTED([WITH_XEN490], 1, [run runv with xen 4.9 or above])
 fi
 
 AM_CONDITIONAL([WITH_XEN], [test "x$with_xen" == "xyes"])
+AM_CONDITIONAL([WITH_XEN490], [test "x$with_xen490" == "xyes"])
 
 AC_CONFIG_FILES([Makefile])
 

hypervisor/xen/xen.go

@@ -255,7 +255,7 @@ func (xc *XenContext) AddNic(ctx *hypervisor.VmContext, host *hypervisor.HostNic
 		glog.V(1).Infof("add network for %d - ip: %s, br: %s, gw: %s, dev: %s, hw: %s", xc.domId, guest.Ipaddr,
 			host.Bridge, host.Bridge, dev, hw.String())
 
-		res := HyperxlNicAdd(xc.driver.Ctx, (uint32)(xc.domId), guest.Ipaddr[0], host.Bridge, host.Bridge, dev, []byte(hw))
+		res := HyperxlNicAdd(xc.driver.Ctx, (uint32)(xc.domId), guest.Ipaddr, host.Bridge, host.Bridge, dev, []byte(hw))
 		if res != 0 {
 			glog.V(1).Infof("nic %s insert succeeded [faked] ", guest.Device)
 			result <- callback

hypervisor/xenpv/xenpv.go

@@ -1,4 +1,4 @@
-// +build linux,with_xen
+// +build linux,with_xen490
 
 package xenpv
 

hypervisor/xenpv/xenpv_unsupported.go

@@ -1,4 +1,4 @@
-// +build !with_xen
+// +build !with_xen490
 
 package xenpv
 

lib/runvxenlight/xenlight-runv.go

@@ -1,4 +1,4 @@
-// +build linux,with_xen
+// +build linux,with_xen490
 
 /*
  *
@@ -54,13 +54,25 @@ static int runvxl_domain_create_new(libxl_ctx *ctx, runvxl_domain_config *config
     libxl_domain_config_init(&d_config);
 
     d_config.num_p9s = 1;
+#ifndef LIBXL_HAVE_P9S
+//this flag is introduce since tag 4.10.0-rc1, introduce a field rename
     d_config.p9 = malloc(sizeof(libxl_device_p9));
     if (d_config.p9 == NULL) {
         return -1;
     }
     d_config.p9->tag = config->p9_tag;
     d_config.p9->path = config->p9_path;
     d_config.p9->security_model = "none";
+#else //LIBXL_HAVE_P9S
+    d_config.p9s = malloc(sizeof(libxl_device_p9));
+    if (d_config.p9s == NULL) {
+        return -1;
+    }
+    d_config.p9s->tag = config->p9_tag;
+    d_config.p9s->path = config->p9_path;
+    d_config.p9s->security_model = "none";
+#endif //LIBXL_HAVE_P9S
+
 
     d_config.num_channels = 2;
     d_config.channels = malloc(sizeof(libxl_device_channel) * 2);

lib/runvxenlight/xenlight.go

@@ -1,3 +1,5 @@
+// +build linux,with_xen490
+
 /*
  * Copyright (C) 2016 George W. Dunlap, Citrix Systems UK Ltd
  *