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xen-devel
[Xen-devel] Re: [PATCH RFC V2 4/5] kvm guest : Added configuration suppo
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To: |
Raghavendra K T <raghavendra.kt@xxxxxxxxxxxxxxxxxx> |
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Subject: |
[Xen-devel] Re: [PATCH RFC V2 4/5] kvm guest : Added configuration support to enable debug information for KVM Guests |
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From: |
Avi Kivity <avi@xxxxxxxxxx> |
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Date: |
Mon, 24 Oct 2011 12:15:14 +0200 |
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Cc: |
Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>, Dave Jiang <dave.jiang@xxxxxxxxx>, Gleb Natapov <gleb@xxxxxxxxxx>, KVM <kvm@xxxxxxxxxxxxxxx>, Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, LKML <linux-kernel@xxxxxxxxxxxxxxx>, Greg Kroah-Hartman <gregkh@xxxxxxx>, x86@xxxxxxxxxx, Virtualization <virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx>, Marcelo Tosatti <mtosatti@xxxxxxxxxx>, Suzuki Poulose <suzuki@xxxxxxxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Srivatsa Vaddagiri <vatsa@xxxxxxxxxxxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, Sedat Dilek <sedat.dilek@xxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Yinghai Lu <yinghai@xxxxxxxxxx>, Xen <xen-devel@xxxxxxxxxxxxxxxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> |
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Tue, 25 Oct 2011 09:54:40 -0700 |
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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.
--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.
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