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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen master] libxl: add FreeBSD OS support
commit 430b17b171a4bbbd7cdc0923ebd7598616f6bbc7
Author: Roger Pau Monne <roger.pau@xxxxxxxxxx>
AuthorDate: Mon Jun 2 17:08:18 2014 +0200
Commit: Ian Campbell <ian.campbell@xxxxxxxxxx>
CommitDate: Wed Jun 18 17:19:25 2014 +0100
libxl: add FreeBSD OS support
Create a new libxl_freebsd.c file that contains OS-specific bits used
by libxl.
This currently defines which backend to use to handle disks, and
which hotplug scripts to execute.
Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
Cc: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
---
tools/libxl/Makefile | 4 +
tools/libxl/libxl_freebsd.c | 133 +++++++++++++++++++++++++++++++++++++++++++
tools/libxl/libxl_osdeps.h | 5 ++
3 files changed, 142 insertions(+), 0 deletions(-)
diff --git a/tools/libxl/Makefile b/tools/libxl/Makefile
index 4cfa275..7fc42c8 100644
--- a/tools/libxl/Makefile
+++ b/tools/libxl/Makefile
@@ -52,10 +52,14 @@ else
ifeq ($(CONFIG_Linux),y)
LIBXL_OBJS-y += libxl_linux.o
else
+ifeq ($(CONFIG_FreeBSD),y)
+LIBXL_OBJS-y += libxl_freebsd.o
+else
$(error Your Operating System is not supported by libxenlight, \
please check libxl_linux.c and libxl_netbsd.c to see how to get it ported)
endif
endif
+endif
ifeq ($(FLEX),)
%.c %.h:: %.l
diff --git a/tools/libxl/libxl_freebsd.c b/tools/libxl/libxl_freebsd.c
new file mode 100644
index 0000000..e8b88b3
--- /dev/null
+++ b/tools/libxl/libxl_freebsd.c
@@ -0,0 +1,133 @@
+/*
+ * Copyright (C) 2014
+ * Author Roger Pau Monne <roger.pau@xxxxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation; version 2.1 only. with the special
+ * exception on linking described in file LICENSE.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ */
+
+#include "libxl_osdeps.h" /* must come before any other headers */
+
+#include "libxl_internal.h"
+
+int libxl__try_phy_backend(mode_t st_mode)
+{
+ if (S_ISREG(st_mode) || S_ISBLK(st_mode) || S_ISCHR(st_mode))
+ return 1;
+
+ return 0;
+}
+
+char *libxl__devid_to_localdev(libxl__gc *gc, int devid)
+{
+ /* TODO */
+ return NULL;
+}
+
+/* Hotplug scripts caller functions */
+static int libxl__hotplug_env_nic(libxl__gc *gc, libxl__device *dev, char
***env,
+ int num_exec)
+{
+ int nr = 0;
+ const int arraysize = 5;
+ libxl_nic_type type;
+
+ assert(dev->backend_kind == LIBXL__DEVICE_KIND_VIF);
+
+ /*
+ * On the first pass the PV interface is added to the bridge,
+ * on the second pass the tap interface will also be added.
+ */
+ type = num_exec == 0 ? LIBXL_NIC_TYPE_VIF : LIBXL_NIC_TYPE_VIF_IOEMU;
+
+ GCNEW_ARRAY(*env, arraysize);
+ (*env)[nr++] = "iface_dev";
+ (*env)[nr++] = (char *) libxl__device_nic_devname(gc, dev->domid,
+ dev->devid, type);
+ (*env)[nr++] = "emulated";
+ (*env)[nr++] = type == LIBXL_NIC_TYPE_VIF_IOEMU ? "1" : "0";
+ (*env)[nr++] = NULL;
+ assert(nr == arraysize);
+
+ return 0;
+}
+
+static int libxl__hotplug_nic(libxl__gc *gc, libxl__device *dev, char ***args,
+ libxl__device_action action)
+{
+ char *be_path = libxl__device_backend_path(gc, dev);
+ char *script;
+ int nr = 0, rc = 0, arraysize = 4;
+
+ assert(dev->backend_kind == LIBXL__DEVICE_KIND_VIF);
+
+ script = libxl__xs_read(gc, XBT_NULL,
+ GCSPRINTF("%s/%s", be_path, "script"));
+ if (!script) {
+ LOGEV(ERROR, errno, "unable to read script from %s", be_path);
+ rc = ERROR_FAIL;
+ goto out;
+ }
+
+ GCNEW_ARRAY(*args, arraysize);
+ (*args)[nr++] = script;
+ (*args)[nr++] = be_path;
+ (*args)[nr++] = GCSPRINTF("%s", action == LIBXL__DEVICE_ACTION_ADD ?
+ "add" : "remove");
+ (*args)[nr++] = NULL;
+ assert(nr == arraysize);
+
+out:
+ return rc;
+}
+
+int libxl__get_hotplug_script_info(libxl__gc *gc, libxl__device *dev,
+ char ***args, char ***env,
+ libxl__device_action action,
+ int num_exec)
+{
+ libxl_nic_type nictype;
+ int rc;
+
+ if (dev->backend_kind != LIBXL__DEVICE_KIND_VIF || num_exec == 2)
+ return 0;
+
+ rc = libxl__nic_type(gc, dev, &nictype);
+ if (rc) {
+ LOG(ERROR, "error when fetching nic type");
+ rc = ERROR_FAIL;
+ goto out;
+ }
+
+ /*
+ * For PV domains only one pass is needed (because there's no emulated
+ * interface). For HVM domains two passes are needed in order to add
+ * both the PV and the tap interfaces to the bridge.
+ */
+ if (nictype == LIBXL_NIC_TYPE_VIF && num_exec != 0) {
+ rc = 0;
+ goto out;
+ }
+
+ rc = libxl__hotplug_env_nic(gc, dev, env, num_exec);
+ if (rc)
+ goto out;
+
+ rc = libxl__hotplug_nic(gc, dev, args, action);
+ if (!rc) rc = 1;
+
+out:
+ return rc;
+}
+
+libxl_device_model_version libxl__default_device_model(libxl__gc *gc)
+{
+ return LIBXL_DEVICE_MODEL_VERSION_QEMU_XEN;
+}
diff --git a/tools/libxl/libxl_osdeps.h b/tools/libxl/libxl_osdeps.h
index aea83ee..08eaf0c 100644
--- a/tools/libxl/libxl_osdeps.h
+++ b/tools/libxl/libxl_osdeps.h
@@ -37,6 +37,11 @@
#include <pty.h>
#elif defined(__sun__)
#include <stropts.h>
+#elif defined(__FreeBSD__)
+#define SYSFS_PCI_DEV "/dev/null"
+#define SYSFS_PCIBACK_DRIVER "/dev/null"
+#define NETBACK_NIC_NAME "xnb%u.%d"
+#include <libutil.h>
#endif
#ifndef SYSFS_PCIBACK_DRIVER
--
generated by git-patchbot for /home/xen/git/xen.git#master
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