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    Subject[tip:x86/spinlocks] kvm guest : Add configuration support to enable debug information for KVM Guests
    Commit-ID:  20a89c88f7d2458e12f66d7850cf17deec7daa1c
    Gitweb: http://git.kernel.org/tip/20a89c88f7d2458e12f66d7850cf17deec7daa1c
    Author: Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>
    AuthorDate: Tue, 6 Aug 2013 17:15:01 +0530
    Committer: H. Peter Anvin <hpa@linux.intel.com>
    CommitDate: Thu, 8 Aug 2013 16:07:30 -0700

    kvm guest : Add configuration support to enable debug information for KVM Guests

    Signed-off-by: Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>
    Link: http://lkml.kernel.org/r/20130806114501.20643.5734.sendpatchset@codeblue.in.ibm.com
    Signed-off-by: Suzuki Poulose <suzuki@in.ibm.com>
    Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
    Acked-by: Gleb Natapov <gleb@redhat.com>
    Acked-by: Ingo Molnar <mingo@kernel.org>
    Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
    ---
    arch/x86/Kconfig | 9 +++++++++
    1 file changed, 9 insertions(+)

    diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
    index 112e712..b1fb846 100644
    --- a/arch/x86/Kconfig
    +++ b/arch/x86/Kconfig
    @@ -657,6 +657,15 @@ config KVM_GUEST
    underlying device model, the host provides the guest with
    timing infrastructure such as time of day, and system time

    +config KVM_DEBUG_FS
    + bool "Enable debug information for KVM Guests in debugfs"
    + depends on KVM_GUEST && DEBUG_FS
    + 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"

    config PARAVIRT_TIME_ACCOUNTING

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