diff options
| author | Bastian Blank <waldi@debian.org> | 2011-12-10 22:29:48 +0400 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2011-12-16 22:29:41 +0400 |
| commit | e9f0fec3f5d406c500861da779d16a779a110055 (patch) | |
| tree | 54746773f093c060f1112ad1d8067d37010b92a3 /include/xen | |
| parent | 2fb3683e7b164ee2b324039f7c9d90fe5b1a259b (diff) | |
| download | linux-e9f0fec3f5d406c500861da779d16a779a110055.tar.xz | |
xen: Add xenbus_backend device
Access for xenstored to the event channel and pre-allocated ring is
managed via xenfs. This adds its own character device featuring mmap
for the ring and an ioctl for the event channel.
Signed-off-by: Bastian Blank <waldi@debian.org>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'include/xen')
| -rw-r--r-- | include/xen/xenbus_dev.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/include/xen/xenbus_dev.h b/include/xen/xenbus_dev.h new file mode 100644 index 000000000000..ac5f0fe47ed9 --- /dev/null +++ b/include/xen/xenbus_dev.h @@ -0,0 +1,41 @@ +/****************************************************************************** + * evtchn.h + * + * Interface to /dev/xen/xenbus_backend. + * + * Copyright (c) 2011 Bastian Blank <waldi@debian.org> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation; or, when distributed + * separately from the Linux kernel or incorporated into other + * software packages, subject to the following license: + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this source file (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, modify, + * merge, publish, distribute, sublicense, and/or sell copies of the Software, + * and to permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#ifndef __LINUX_XEN_XENBUS_DEV_H__ +#define __LINUX_XEN_XENBUS_DEV_H__ + +#include <linux/ioctl.h> + +#define IOCTL_XENBUS_BACKEND_EVTCHN \ + _IOC(_IOC_NONE, 'B', 0, 0) + +#endif /* __LINUX_XEN_XENBUS_DEV_H__ */ |