diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index dff9edf..c356772 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -280,6 +280,17 @@
 	default "17" if HUGETLB_PAGE
 	default "11"
 
+config VIRT_CPU_ACCOUNTING
+	bool "Deterministic task and CPU time accounting"
+	default n
+	help
+	  Select this option to enable more accurate task and CPU time
+	  accounting.  This is done by reading a CPU counter on each
+	  kernel entry and exit and on transitions within the kernel
+	  between system, softirq and hardirq state, so there is a
+	  small performance impact.
+	  If in doubt, say N here.
+
 config SMP
 	bool "Symmetric multi-processing support"
 	help