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Re: [Xen-devel] [PATCH v3] xen: make tracebuffer configurable
- To: George Dunlap <George.Dunlap@xxxxxxxxxx>
- From: chenbaodong <chenbaodong@xxxxxxxxxx>
- Date: Mon, 10 Jun 2019 09:00:53 +0800
- Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>, Wei Liu <wei.liu2@xxxxxxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>, Andrew Cooper <Andrew.Cooper3@xxxxxxxxxx>, "Tim \(Xen.org\)" <tim@xxxxxxx>, Julien Grall <julien.grall@xxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, Ian Jackson <Ian.Jackson@xxxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Mon, 10 Jun 2019 01:01:55 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 6/5/19 18:38, George Dunlap wrote:
On Jun 5, 2019, at 2:27 AM, Baodong Chen <chenbaodong@xxxxxxxxxx> wrote:
Xen internal running status(trace event) will be saved to
trace memory when enabled. trace event data and config params can be
read/changed by system control hypercall at run time.
Can be disabled for smaller code footprint.
Signed-off-by: Baodong Chen <chenbaodong@xxxxxxxxxx>
---
xen/common/Kconfig | 9 +++++++++
xen/common/Makefile | 2 +-
xen/include/xen/trace.h | 26 ++++++++++++++++++++++++++
3 files changed, 36 insertions(+), 1 deletion(-)
diff --git a/xen/common/Kconfig b/xen/common/Kconfig
index c838506..d908fe1 100644
--- a/xen/common/Kconfig
+++ b/xen/common/Kconfig
@@ -368,4 +368,13 @@ config DOM0_MEM
Leave empty if you are not sure what to specify.
+config TRACEBUFFER
+ bool "Enable tracing infrastructure" if EXPERT = "y"
+ default y
+ ---help---
+ Enable in tracing infrastructure and pre-defined tracepoints within
Xen.
Sorry, an editing mistake caused me to include a stray ‘in’ in this sentence
when I suggested this text. :-)
This could be removed on check-in. With that fixed, the commit message looks
OK to me.
Hello George,
sorry for the late reply.
Fixed according to your comments in v4.
-George
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