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xen-devel
[Xen-devel] Re: [PATCH RFC V2 4/5] kvm guest : Added configuration suppo
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To: |
Avi Kivity <avi@xxxxxxxxxx> |
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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: |
Raghavendra K T <raghukt@xxxxxxxxxxxxxxxxxx> |
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Date: |
Tue, 25 Oct 2011 23:41:54 +0530 |
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Cc: |
Raghavendra K T <raghavendra.kt@xxxxxxxxxxxxxxxxxx>, Gleb Natapov <gleb@xxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Virtualization <virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>, Dave Jiang <dave.jiang@xxxxxxxxx>, KVM <kvm@xxxxxxxxxxxxxxx>, x86@xxxxxxxxxx, Ingo Molnar <mingo@xxxxxxxxxx>, Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>, Srivatsa Vaddagiri <vatsa@xxxxxxxxxxxxxxxxxx>, Marcelo Tosatti <mtosatti@xxxxxxxxxx>, Xen <xen-devel@xxxxxxxxxxxxxxxxxxx>, Sedat Dilek <sedat.dilek@xxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Yinghai Lu <yinghai@xxxxxxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>, Greg Kroah-Hartman <gregkh@xxxxxxx>, LKML <linux-kernel@xxxxxxxxxxxxxxx>, Suzuki Poulose <suzuki@xxxxxxxxxxxxxxxxxx> |
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Delivery-date: |
Thu, 27 Oct 2011 04:41:34 -0700 |
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References: |
<20111023190307.16364.35381.sendpatchset@xxxxxxxxxxxxxxxxxxxx> <20111023190700.16364.7548.sendpatchset@xxxxxxxxxxxxxxxxxxxx> <4EA53AB2.9050805@xxxxxxxxxx> |
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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.
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