RE: [Xen-devel] [PATCH] enhance HVM xentrace

["Li, Xin B" <xin.b.li@xxxxxxxxx>]

>>I was wondering how useful these are at all. It's a bit random and
>>undocumented.
>
>Two usages for us currently:
>1) debug, for some specific bugs it's very useful, for example, the
>issue that win2k can't boot are identified by using xentrace.
>2) outline some specific guest behavior, for example, how HVM guest are
>using it's PIC/LAPIC, so that we may find some optimization
>possibilites.
>
>> If it's useful perhaps it should be extended into a generic
>>HVM mechanism and define some processor-agnostic enumerations 
>>for exit-code reasons and so on.
>
>If we could have it, it's really good.
>But for now, I think it's hard and we still need more experiences.
>-Xin
>


The perl script to parse VMX xentrace data is attached, it helps to
shape VMX VMExit, I think maybe we can put it into tools/xentrace/
But 2 obviously issues:
1) it's specific to VMX currently, and the patch to encode shadow
information into XenTrace data is still in our hand since it's ugly :-(.
2) schdule data are not well parsed yet :-(

-Xin

parse_vmx_xentrace.pl
Description: parse_vmx_xentrace.pl

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