Staging: rar_register: provide better explanation in Kconfig

Provides a better explanation of what this
driver is for in the Kconfig file

Signed-off-by: Mark Allyn <mark.a.allyn@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/rar_register/Kconfig b/drivers/staging/rar_register/Kconfig
index 17f8bf3bb41af980fed1a53c093afac15a1705b2..3f73839643e9fe0e5077ba95e00eb5ea3a73e5e6 100644 (file)
--- a/drivers/staging/rar_register/Kconfig
+++ b/drivers/staging/rar_register/Kconfig
@@ -14,4 +14,17 @@ config RAR_REGISTER
                contents of the restricted access region control
                registers.
 
+               The restricted access region control registers
+               (rar_registers) are used to pass address and
+               locking information on restricted access regions
+               to other drivers that use restricted access regions
+
+               The restricted access regions are regions of memory
+               on the Intel MID Platform that are not accessible to
+               the x86 processor, but are accessible to dedicated
+               processors on board peripheral devices.
+
+               The purpose of the restricted access regions is to
+               protect sensitive data from compromise by unauthorized
+               programs running on the x86 processor.
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