Re: [PATCH RFC V2 4/5] kvm guest : Added configuration support toenable debug information for KVM Guests

[Raghavendra K T]

On 10/24/2011 03:45 PM, Avi Kivity wrote:
> On 10/23/2011 09:07 PM, Raghavendra K T wrote:
> > Added configuration support to enable debug information
> > for KVM Guests in debugfs
> >
> > Signed-off-by: Srivatsa Vaddagiri<vatsa@xxxxxxxxxxxxxxxxxx>
> > Signed-off-by: Suzuki Poulose<suzuki@xxxxxxxxxx>
> > Signed-off-by: Raghavendra K T<raghavendra.kt@xxxxxxxxxxxxxxxxxx>
> > ---
> > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> > index 1f03f82..ed34269 100644
> > --- a/arch/x86/Kconfig
> > +++ b/arch/x86/Kconfig
> > @@ -562,6 +562,15 @@ config KVM_GUEST
> >   	  This option enables various optimizations for running under the KVM
> >   	  hypervisor.
> >
> > +config KVM_DEBUG_FS
> > +	bool "Enable debug information for KVM Guests in debugfs"
> > +	depends on KVM_GUEST
> > +	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"
>
> This might be better implemented through tracepoints, which an be
> enabled dynamically.
Interesting option. I 'll explore this one. Thanks for pointing.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/