linux-kernel - Re: perf/x86/intel/uncore

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <b2f5eaf7-066a-0492-a5fe-e4cc9b1161d0@linux.intel.com>
Date:   Fri, 25 Jan 2019 17:42:20 -0500
From:   "Liang, Kan" <kan.liang@...ux.intel.com>
To:     Song Liu <songliubraving@...com>
Cc:     lkml <linux-kernel@...r.kernel.org>
Subject: Re: perf/x86/intel/uncore



On 1/25/2019 5:24 PM, Song Liu wrote:
> I also noticed that uncore_pci_probe() returns at
> 
>          if (atomic_inc_return(&pmu->activeboxes) > 1)
>                  return 0;
> 
> for bus 1-7. So we only probed bus 0 (socket 0). Is this expected behavior?

We probed all, but only need to register PMU once.
It can be distinguished by cpumask. E.g. you may want to check 
"/sys/devices/uncore_imc_0/cpumask".


Thanks,
Kan