Mailing List Archive

# HG changeset patch
# User Roger Pau Monne <roger.pau@entel.upc.edu>
# Date 1317386335 -7200
# Node ID e3907ed912201e5270ff19265fab2c979b3929cc
# Parent a0f9c898470cedc6d9009fde182a5bd73e587a28
libxl: add support for image files for NetBSD

Created a helper function to detect if the OS is capable of using
image files as phy backends. Create two OS specific files, and
changed the Makefile to choose the correct one at compile time.

Signed-off-by: Roger Pau Monne <roger.pau@entel.upc.edu>

diff -r a0f9c898470c -r e3907ed91220 tools/libxl/Makefile
--- a/tools/libxl/Makefile Fri Sep 30 14:38:55 2011 +0200
+++ b/tools/libxl/Makefile Fri Sep 30 14:38:55 2011 +0200
@@ -32,6 +32,15 @@ endif
LIBXL_OBJS-$(CONFIG_X86) += libxl_cpuid.o
LIBXL_OBJS-$(CONFIG_IA64) += libxl_nocpuid.o

+ifeq ($(CONFIG_NetBSD),y)
+LIBXL_OBJS-y += libxl_netbsd.o
+else ifeq ($(CONFIG_Linux),y)
+LIBXL_OBJS-y += libxl_linux.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
+
LIBXL_LIBS += -lyajl

LIBXL_OBJS = flexarray.o libxl.o libxl_create.o libxl_dm.o libxl_pci.o \
diff -r a0f9c898470c -r e3907ed91220 tools/libxl/libxl_device.c
--- a/tools/libxl/libxl_device.c Fri Sep 30 14:38:55 2011 +0200
+++ b/tools/libxl/libxl_device.c Fri Sep 30 14:38:55 2011 +0200
@@ -138,15 +138,14 @@ static int disk_try_backend(disk_try_bac
a->disk->format == LIBXL_DISK_FORMAT_EMPTY)) {
goto bad_format;
}
- if (a->disk->format != LIBXL_DISK_FORMAT_EMPTY &&
- !S_ISBLK(a->stab.st_mode)) {
- LIBXL__LOG(ctx, LIBXL__LOG_DEBUG, "Disk vdev=%s, backend phy"
- " unsuitable as phys path not a block device",
- a->disk->vdev);
- return 0;
- }

- return backend;
+ if (libxl__try_phy_backend(a->stab.st_mode))
+ return backend;
+
+ LIBXL__LOG(ctx, LIBXL__LOG_DEBUG, "Disk vdev=%s, backend phy"
+ " unsuitable as phys path not a block device",
+ a->disk->vdev);
+ return 0;

case LIBXL_DISK_BACKEND_TAP:
if (!libxl__blktap_enabled(a->gc)) {
diff -r a0f9c898470c -r e3907ed91220 tools/libxl/libxl_internal.h
--- a/tools/libxl/libxl_internal.h Fri Sep 30 14:38:55 2011 +0200
+++ b/tools/libxl/libxl_internal.h Fri Sep 30 14:38:55 2011 +0200
@@ -252,6 +252,15 @@ _hidden int libxl__device_destroy(libxl_
_hidden int libxl__devices_destroy(libxl__gc *gc, uint32_t domid, int force);
_hidden int libxl__wait_for_backend(libxl__gc *gc, char *be_path, char *state);

+/*
+ * libxl__try_phy_backend - Check if there's support for the passed
+ * type of file using the PHY backend
+ * st_mode: mode_t of the file, as returned by stat function
+ *
+ * Returns 0 on success, and < 0 on error.
+ */
+_hidden int libxl__try_phy_backend(mode_t st_mode);
+
/* from libxl_pci */

_hidden int libxl__device_pci_add(libxl__gc *gc, uint32_t domid, libxl_device_pci *pcidev, int starting);
diff -r a0f9c898470c -r e3907ed91220 tools/libxl/libxl_linux.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/libxl/libxl_linux.c Fri Sep 30 14:38:55 2011 +0200
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2011
+ * Author Roger Pau Monne <roger.pau@entel.upc.edu>
+ *
+ * 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 <sys/stat.h>
+
+#include "libxl_internal.h"
+
+int libxl__try_phy_backend(mode_t st_mode)
+{
+ if (!S_ISBLK(st_mode)) {
+ return 0;
+ }
+
+ return 1;
+}
diff -r a0f9c898470c -r e3907ed91220 tools/libxl/libxl_netbsd.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/libxl/libxl_netbsd.c Fri Sep 30 14:38:55 2011 +0200
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2011
+ * Author Roger Pau Monne <roger.pau@entel.upc.edu>
+ *
+ * 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 <sys/stat.h>
+
+#include "libxl_internal.h"
+
+int libxl__try_phy_backend(mode_t st_mode)
+{
+ if (S_ISREG(st_mode) || S_ISBLK(st_mode))
+ return 1;
+
+ return 0;
+}

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