From 97349135fea7f0ba8464534433df3bfd1dc0e9a6 Mon Sep 17 00:00:00 2001
From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Wed, 25 Jun 2008 00:19:14 -0400
Subject: x86/paravirt: add debugging for missing operations

Rather than just jumping to 0 when there's a missing operation, raise a BUG.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/Kconfig | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'arch/x86/Kconfig')

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 9441e46cb49..67e5275f03c 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -435,6 +435,13 @@ config PARAVIRT_CLOCK
 
 endif
 
+config PARAVIRT_DEBUG
+       bool "paravirt-ops debugging"
+       depends on PARAVIRT && DEBUG_KERNEL
+       help
+         Enable to debug paravirt_ops internals.  Specifically, BUG if
+	 a paravirt_op is missing when it is called.
+
 config MEMTEST
 	bool "Memtest"
 	depends on X86_64
-- 
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