linux-kernel - Re: [PATCH v7 7/7] perf/amd/iommu: Enable support for multiple IOMMUs

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: <20170113114925.x6f4r5qcidksnfes@pd.tnic>
Date:   Fri, 13 Jan 2017 12:49:25 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Suravee Suthikulpanit <Suravee.Suthikulpanit@....com>
Cc:     linux-kernel@...r.kernel.org, iommu@...ts.linux-foundation.org,
        joro@...tes.org, peterz@...radead.org, mingo@...hat.com
Subject: Re: [PATCH v7 7/7] perf/amd/iommu: Enable support for multiple IOMMUs

On Fri, Jan 13, 2017 at 05:24:01PM +0700, Suravee Suthikulpanit wrote:
> IIUC, Perf tools looks at the /sys/devices/xxxxx to identify
> availalble PMUs. Are you planning to have perf tools look at
> /sys/devices/system/iommu/xxx instead?

No, I'm planning to understand what do you mean exactly. Because the
PMUs are, as I'm being pointed to, here:

#define EVENT_SOURCE_DEVICE_PATH "/bus/event_source/devices/"

Do you mean that, per chance?

-- 
Regards/Gruss,
    Boris.

Good mailing practices for 400: avoid top-posting and trim the reply.