On 10/24/2012 05:13 PM, Marcelo Tosatti wrote: > Index: vsyscall/arch/x86/Kconfig > =================================================================== > --- vsyscall.orig/arch/x86/Kconfig > +++ vsyscall/arch/x86/Kconfig > @@ -632,6 +632,13 @@ config PARAVIRT_SPINLOCKS > > config PARAVIRT_CLOCK > bool > +config PARAVIRT_CLOCK_VSYSCALL > + bool "Paravirt clock vsyscall support" > + depends on PARAVIRT_CLOCK && GENERIC_TIME_VSYSCALL > + ---help--- > + Enable performance critical clock related system calls to > + be executed in userspace, provided that the hypervisor > + supports it. > > endif Besides debugging, what is the point in having this as an extra-selectable? Is there any case in which a virtual machine has code for this, but may decide to run without it ? I believe all this code in vsyscall should be wrapped in PARAVIRT_CLOCK only. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
