From 0c42f392767d3592e1cf676857d398ef69be7c9c Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@suse.de>
Date: Wed, 30 Jan 2008 13:33:42 +0100
Subject: c_p_a(): do a simple self test at boot

When CONFIG_DEBUG_RODATA is enabled undo the ro mapping and redo it again.
This gives some simple testing for change_page_attr().

Signed-off-by: Andi Kleen <ak@suse.de>
Acked-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/Kconfig.debug | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'arch/x86/Kconfig.debug')

diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 9bb61e1aed69..38211ff0447f 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -204,4 +204,9 @@ config DEBUG_BOOT_PARAMS
 	help
 	  This option will cause struct boot_params to be exported via debugfs.
 
+config CPA_DEBUG
+	bool "CPA self test code"
+	help
+	  Do change_page_attr self tests at boot.
+
 endmenu
-- 
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