Signed-off-by: Joerg Roedel <joerg.roedel@xxxxxxx>
---
arch/x86/kvm/svm.c | 12 +++++++++---
1 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index b720b02..27d26c3 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -49,11 +49,17 @@ MODULE_LICENSE("GPL");
#define DEBUGCTL_RESERVED_BITS (~(0x3fULL))
-/* Turn on to get debugging output*/
-/* #define NESTED_DEBUG */
+/* Turn on to get debugging output for nested svm */
+#undef NESTED_DEBUG
#ifdef NESTED_DEBUG
-#define nsvm_printk(fmt, args...) printk(KERN_INFO fmt, ## args)
+
+static int nested_dbg;
+module_param(nested_dbg, bool, 0644);
+
+#define nsvm_printk(fmt, args...) \
+ if (nested_dbg) \
+ printk(KERN_INFO fmt, ## args)
#else
#define nsvm_printk(fmt, args...) do {} while(0)
#endif
--
1.6.3.3
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