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From: Boris Ostrovsky <boris.ostrovsky@oracle.com>
To: Jan Beulich <JBeulich@suse.com>, Brendan Gregg <bgregg@netflix.com>
Cc: andrew.cooper3@citrix.com, kevin.tian@intel.com,
	dietmar.hahn@ts.fujitsu.com, jun.nakajima@intel.com,
	xen-devel@lists.xen.org
Subject: Re: [PATCH v5] x86/VPMU: implement ipc and arch filter flags
Date: Wed, 6 Jan 2016 09:16:47 -0500	[thread overview]
Message-ID: <568D21CF.3070104@oracle.com> (raw)
In-Reply-To: <568D0BDA02000078000C3E32@prv-mh.provo.novell.com>

On 01/06/2016 06:43 AM, Jan Beulich wrote:
>>>> On 05.01.16 at 02:43, <bgregg@netflix.com> wrote:
>> This introduces a way to have a restricted VPMU, by specifying one of two
>> predefined groups of PMCs to make available. For secure environments, this
>> allows the VPMU to be used without needing to enable all PMCs.
>>
>> Signed-off-by: Brendan Gregg <bgregg@netflix.com>
>> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
> Does this hold with ...
>
>> ---
>> Changes in v5:
>> * addressing review comments from Kevin:
>> * simplified BTS DS_AREA filter
>> * improvements to comments, incl. matching Intel SDM descriptions
> ... all of these?
>

Yes.

Note that this patch will conflict with 
http://lists.xenproject.org/archives/html/xen-devel/2015-12/msg02753.html (for 
'case MSR_IA32_PEBS_ENABLE' in core2_vpmu_do_wrmsr()). I can rebase it 
on top of Brendan's if you prefer.


-boris

  reply	other threads:[~2016-01-06 14:16 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-05  1:43 [PATCH v5] x86/VPMU: implement ipc and arch filter flags Brendan Gregg
2016-01-05  6:52 ` Tian, Kevin
2016-01-06 11:43 ` Jan Beulich
2016-01-06 14:16   ` Boris Ostrovsky [this message]
2016-01-07 14:12 ` Jan Beulich
2016-01-07 21:40   ` Brendan Gregg
2016-01-08  7:52     ` Jan Beulich

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