[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-devel] [PATCH] xen: fix MSR xentrace output


  • To: Christoph Egger <Christoph.Egger@xxxxxxx>
  • From: George Dunlap <dunlapg@xxxxxxxxx>
  • Date: Tue, 3 Aug 2010 17:48:21 +0100
  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
  • Delivery-date: Tue, 03 Aug 2010 09:49:07 -0700
  • Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type :content-transfer-encoding; b=O9m51LaTC3vAdeaQEwtO3NTEk83T7kNAD9HjYse2lZNrq3wb9fBZvVyfAKTJrgqTDp Xh4nV7d/neA279KOqrGPE/lgrjjTOv7/QJ3PhTsjFTR4XJ/Y+0YkkHBSGYo/lE2ueYcS d7sSuXd3CAMGVPKGLVmSs5N69p0zKLvU4KoOw=
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

And, why are you moving the trace things around?  In the write case,
you're pointlessly duplicating code.

I can see the point of adding a case for failed reads, so you can see
what the msr address was that failed.  But in that case I'd probably
trace a value of 0 or -1 for msr content.

 -George

On Tue, Aug 3, 2010 at 5:39 PM, George Dunlap <dunlapg@xxxxxxxxx> wrote:
> NACK for discussion.
>
> What do you mean they're "mixed up"?  Putting the 64-bit value first
> makes it easy to define a structure you can just point directly at the
> binary data.  If xentrace_format is different, wouldnt' it be easier
> to change it than the hypervisor?
>
>  -George
>
>
> On Tue, Aug 3, 2010 at 5:24 PM, Christoph Egger <Christoph.Egger@xxxxxxx> 
> wrote:
>>
>> Hi!
>>
>> Attached patch corrects MSR read/write trace output.
>> Also avoid duplicate MSR read/write lines in xentrace output.
>> MSR and value are mixed up.
>>
>> Signed-off-by: Christoph Egger <Christoph.Egger@xxxxxxx>
>>
>> --
>> ---to satisfy European Law for business letters:
>> Advanced Micro Devices GmbH
>> Einsteinring 24, 85609 Dornach b. Muenchen
>> Geschaeftsfuehrer: Alberto Bozzo, Andrew Bowd
>> Sitz: Dornach, Gemeinde Aschheim, Landkreis Muenchen
>> Registergericht Muenchen, HRB Nr. 43632
>>
>> _______________________________________________
>> Xen-devel mailing list
>> Xen-devel@xxxxxxxxxxxxxxxxxxx
>> http://lists.xensource.com/xen-devel
>>
>>
>

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel


 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.