kvm guest: Add configuration support to enable debug information for KVM Guests

Signed-off-by: Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1376058122-8248-14-git-send-email-raghavendra.kt@linux.vnet.ibm.com
Signed-off-by: Suzuki Poulose <suzuki@in.ibm.com>
Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Acked-by: Gleb Natapov <gleb@redhat.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 112e71264542..b1fb846e6dac 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -657,6 +657,15 @@ config KVM_GUEST
           underlying device model, the host provides the guest with
           timing infrastructure such as time of day, and system time
 
+config KVM_DEBUG_FS
+        bool "Enable debug information for KVM Guests in debugfs"
+        depends on KVM_GUEST && DEBUG_FS
+        default n
+        ---help---
+          This option enables collection of various statistics for KVM guest.
+          Statistics are displayed in debugfs filesystem. Enabling this option
+          may incur significant overhead.
+
 source "arch/x86/lguest/Kconfig"
 
 config PARAVIRT_TIME_ACCOUNTING