xen: add /sys/hypervisor support

Adds support for Xen info under /sys/hypervisor.  Taken from Novell 2.6.27
backport tree.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig
index 526187c8a12d..88bca1c42db4 100644
--- a/drivers/xen/Kconfig
+++ b/drivers/xen/Kconfig
@@ -41,3 +41,13 @@ config XEN_COMPAT_XENFS
          a xen platform.
          If in doubt, say yes.
 
+config XEN_SYS_HYPERVISOR
+       bool "Create xen entries under /sys/hypervisor"
+       depends on XEN && SYSFS
+       select SYS_HYPERVISOR
+       default y
+       help
+         Create entries under /sys/hypervisor describing the Xen
+         hypervisor environment.  When running native or in another
+         virtual environment, /sys/hypervisor will still be present,
+         but will have no xen contents.
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