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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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