[ PATCH 2.6.16-rc3-xen 1/3] sysfs: export Xen hypervisor attributesto sysfs

From: Mike D. Day
Date: Tue Feb 21 2006 - 09:34:34 EST


This series of patches is a module that exports Xen Hypervisor attributes
to sysfs. The directory structure created is:

+---sys
+---hypervisor
+---xen
+---version
+---major
+---minor
+---extra
+---compilation
+---by
+---date
+---compiler +---properties
+---changeset
+---capabilities
+---virt_start
+---translated_pm
+---writable_dt
+---writable_pt

The xen_sysfs module has a tri-state Kconfig so it can be built-in or
loaded as a module.

The module is in three patches:

Patch 1 (this patch) is a Xen file that is used by all OS kernels that run
on Xen. This includes linux, NetBSD, FreeBSD, Solaris, and others. Patch 1
adds #defined constants so that linux users of this file can avoid typedefs.

Patch 2 (follows) contains the Kconfig changes necessary to add this module
to the kernel build.

Patch 3 (follows) contains the source for the xen_sysfs module itself.

# HG changeset patch
# User mdday@xxxxxxxxxxxxxxxxxxxx
# Node ID d296aaf07bcb4141c6dc2a1bfa7d183f919c2167
# Parent a05e56904e7e5e86aae5a2e022621caaf7b3a6f5
define constants for array sizes. Allows linux users of this file to avoid #typedefs. Existing typedefs work as before.

signed-off-by: Mike D. Day <ncmike@xxxxxxxxxx>

diff -r a05e56904e7e -r d296aaf07bcb xen/include/public/version.h
--- a/xen/include/public/version.h Mon Feb 20 23:01:50 2006 +0000
+++ b/xen/include/public/version.h Tue Feb 21 08:11:03 2006 -0500
@@ -1,8 +1,8 @@
/******************************************************************************
* version.h
- * + *
* Xen version, type, and compile information.
- * + *
* Copyright (c) 2005, Nguyen Anh Quynh <aquynh@xxxxxxxxx>
* Copyright (c) 2005, Keir Fraser <keir@xxxxxxxxxxxxx>
*/
@@ -17,6 +17,7 @@

/* arg == xen_extraversion_t. */
#define XENVER_extraversion 1
+#define XENVER_EXTRAVERSION_LEN 16
typedef char xen_extraversion_t[16];

/* arg == xen_compile_info_t. */
@@ -29,9 +30,11 @@ typedef struct xen_compile_info {
} xen_compile_info_t;

#define XENVER_capabilities 3
+#define XENVER_CAPABILITIES_INFO_LEN 1024
typedef char xen_capabilities_info_t[1024];

#define XENVER_changeset 4
+#define XENVER_CSET_INFO_LEN 64
typedef char xen_changeset_info_t[64];

#define XENVER_platform_parameters 5


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