On Sat, 2008-01-19 at 19:57 +0100, Andi Kleen wrote: > On Saturday 19 January 2008 19:15:48 Ian Campbell wrote: > > diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c > > index 6f5c74a..b3721fd 100644 > > --- a/arch/x86/xen/time.c > > +++ b/arch/x86/xen/time.c > > @@ -592,7 +592,7 @@ __init void xen_time_init(void) > > set_normalized_timespec(&wall_to_monotonic, > > -xtime.tv_sec, -xtime.tv_nsec); > > > > - setup_clear_cpu_cap(X86_FEATURE_TSC); > > + setup_force_cpu_cap(X86_FEATURE_TSC); > > Actually that would be only needed if someone else disabled TSC explicitely > before. > > Simply deleting this should be sufficient. Does this patch work for you?
Yes. > It would break if someone passes notsc to a Xen kernel, but then a lot of > options make the kernel > break if you don't know what you're doing so that doesn't seem like a big > issue. I'm happy either way. I think the Xen paravirt subsystem will use TSC where it has to due to the Xen architecture regardless of this setting. Ian. -- Ian Campbell Good day for overcoming obstacles. Try a steeplechase. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
