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SubjectRe: [PATCH RFC V2 4/5] kvm guest : Added configuration support to enable debug information for KVM Guests
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@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>
> ---
> 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.

--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.



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