From: Alexey Budankov <alexey.budankov@linux.intel.com>
To: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Alexei Starovoitov <ast@kernel.org>,
Ingo Molnar <mingo@redhat.com>, James Morris <jmorris@namei.org>,
Serge Hallyn <serge@hallyn.com>, Jiri Olsa <jolsa@redhat.com>,
Song Liu <songliubraving@fb.com>, Andi Kleen <ak@linux.intel.com>,
Stephane Eranian <eranian@google.com>,
Igor Lubashev <ilubashe@akamai.com>,
Thomas Gleixner <tglx@linutronix.de>,
linux-kernel <linux-kernel@vger.kernel.org>,
"linux-security-module@vger.kernel.org"
<linux-security-module@vger.kernel.org>,
"selinux@vger.kernel.org" <selinux@vger.kernel.org>,
"intel-gfx@lists.freedesktop.org"
<intel-gfx@lists.freedesktop.org>,
"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>,
linux-man@vger.kernel.org
Subject: Re: [PATCH v8 04/12] perf tool: extend Perf tool with CAP_PERFMON capability support
Date: Sat, 4 Apr 2020 11:18:01 +0300 [thread overview]
Message-ID: <ab15a8af-26a6-f8e7-cd7a-6b3fde99eaf9@linux.intel.com> (raw)
In-Reply-To: <CAM9d7cgRczLcyUi1y96a=87Hh3BhFgRUS8Kw=DBg4C0hVYj2HQ@mail.gmail.com>
Hi Namhyung,
On 04.04.2020 5:18, Namhyung Kim wrote:
> Hello,
>
> On Thu, Apr 2, 2020 at 5:47 PM Alexey Budankov
> <alexey.budankov@linux.intel.com> wrote:
>>
>>
>> Extend error messages to mention CAP_PERFMON capability as an option
>> to substitute CAP_SYS_ADMIN capability for secure system performance
>> monitoring and observability operations. Make perf_event_paranoid_check()
>> and __cmd_ftrace() to be aware of CAP_PERFMON capability.
>>
>> CAP_PERFMON implements the principal of least privilege for performance
>> monitoring and observability operations (POSIX IEEE 1003.1e 2.2.2.39
>> principle of least privilege: A security design principle that states
>> that a process or program be granted only those privileges (e.g.,
>> capabilities) necessary to accomplish its legitimate function, and only
>> for the time that such privileges are actually required)
>>
>> For backward compatibility reasons access to perf_events subsystem remains
>> open for CAP_SYS_ADMIN privileged processes but CAP_SYS_ADMIN usage for
>> secure perf_events monitoring is discouraged with respect to CAP_PERFMON
>> capability.
>>
>> Signed-off-by: Alexey Budankov <alexey.budankov@linux.intel.com>
>> Reviewed-by: James Morris <jamorris@linux.microsoft.com>
>
> Acked-by: Namhyung Kim <namhyung@kernel.org>
Thanks! I appreciate you involvement and effort.
~Alexey
>
> Thanks
> Namhyung
>
WARNING: multiple messages have this Message-ID (diff)
From: Alexey Budankov <alexey.budankov@linux.intel.com>
To: Namhyung Kim <namhyung@kernel.org>
Cc: linux-man@vger.kernel.org, Song Liu <songliubraving@fb.com>,
Andi Kleen <ak@linux.intel.com>,
"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
"intel-gfx@lists.freedesktop.org"
<intel-gfx@lists.freedesktop.org>,
Igor Lubashev <ilubashe@akamai.com>,
Alexei Starovoitov <ast@kernel.org>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
James Morris <jmorris@namei.org>,
"selinux@vger.kernel.org" <selinux@vger.kernel.org>,
"linux-security-module@vger.kernel.org"
<linux-security-module@vger.kernel.org>,
Ingo Molnar <mingo@redhat.com>,
Stephane Eranian <eranian@google.com>,
Thomas Gleixner <tglx@linutronix.de>,
Jiri Olsa <jolsa@redhat.com>, Serge Hallyn <serge@hallyn.com>
Subject: Re: [Intel-gfx] [PATCH v8 04/12] perf tool: extend Perf tool with CAP_PERFMON capability support
Date: Sat, 4 Apr 2020 11:18:01 +0300 [thread overview]
Message-ID: <ab15a8af-26a6-f8e7-cd7a-6b3fde99eaf9@linux.intel.com> (raw)
In-Reply-To: <CAM9d7cgRczLcyUi1y96a=87Hh3BhFgRUS8Kw=DBg4C0hVYj2HQ@mail.gmail.com>
Hi Namhyung,
On 04.04.2020 5:18, Namhyung Kim wrote:
> Hello,
>
> On Thu, Apr 2, 2020 at 5:47 PM Alexey Budankov
> <alexey.budankov@linux.intel.com> wrote:
>>
>>
>> Extend error messages to mention CAP_PERFMON capability as an option
>> to substitute CAP_SYS_ADMIN capability for secure system performance
>> monitoring and observability operations. Make perf_event_paranoid_check()
>> and __cmd_ftrace() to be aware of CAP_PERFMON capability.
>>
>> CAP_PERFMON implements the principal of least privilege for performance
>> monitoring and observability operations (POSIX IEEE 1003.1e 2.2.2.39
>> principle of least privilege: A security design principle that states
>> that a process or program be granted only those privileges (e.g.,
>> capabilities) necessary to accomplish its legitimate function, and only
>> for the time that such privileges are actually required)
>>
>> For backward compatibility reasons access to perf_events subsystem remains
>> open for CAP_SYS_ADMIN privileged processes but CAP_SYS_ADMIN usage for
>> secure perf_events monitoring is discouraged with respect to CAP_PERFMON
>> capability.
>>
>> Signed-off-by: Alexey Budankov <alexey.budankov@linux.intel.com>
>> Reviewed-by: James Morris <jamorris@linux.microsoft.com>
>
> Acked-by: Namhyung Kim <namhyung@kernel.org>
Thanks! I appreciate you involvement and effort.
~Alexey
>
> Thanks
> Namhyung
>
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
next prev parent reply other threads:[~2020-04-04 8:18 UTC|newest]
Thread overview: 118+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-02 8:42 [PATCH v8 00/12] Introduce CAP_PERFMON to secure system performance monitoring and observability Alexey Budankov
2020-04-02 8:42 ` [Intel-gfx] " Alexey Budankov
2020-04-02 8:45 ` [PATCH v8 01/12] capabilities: introduce CAP_PERFMON to kernel and user space Alexey Budankov
2020-04-02 8:45 ` [Intel-gfx] " Alexey Budankov
2020-04-22 12:17 ` [tip: perf/core] capabilities: Introduce " tip-bot2 for Alexey Budankov
2020-04-22 12:17 ` [Intel-gfx] " tip-bot2 for Alexey Budankov
2020-04-02 8:46 ` [PATCH v8 02/12] perf/core: open access to the core for CAP_PERFMON privileged process Alexey Budankov
2020-04-02 8:46 ` [Intel-gfx] " Alexey Budankov
2020-04-22 12:17 ` [tip: perf/core] perf/core: Open " tip-bot2 for Alexey Budankov
2020-04-22 12:17 ` [Intel-gfx] " tip-bot2 for Alexey Budankov
2020-04-02 8:47 ` [PATCH v8 03/12] perf/core: open access to probes " Alexey Budankov
2020-04-02 8:47 ` [Intel-gfx] " Alexey Budankov
2020-04-22 12:17 ` [tip: perf/core] " tip-bot2 for Alexey Budankov
2020-04-22 12:17 ` [Intel-gfx] " tip-bot2 for Alexey Budankov
2020-04-02 8:47 ` [PATCH v8 04/12] perf tool: extend Perf tool with CAP_PERFMON capability support Alexey Budankov
2020-04-02 8:47 ` [Intel-gfx] " Alexey Budankov
2020-04-03 11:08 ` Jiri Olsa
2020-04-03 11:08 ` [Intel-gfx] " Jiri Olsa
2020-04-03 13:08 ` Alexey Budankov
2020-04-03 13:08 ` [Intel-gfx] " Alexey Budankov
2020-04-04 2:18 ` Namhyung Kim
2020-04-04 2:18 ` [Intel-gfx] " Namhyung Kim
2020-04-04 8:18 ` Alexey Budankov [this message]
2020-04-04 8:18 ` Alexey Budankov
2020-04-22 12:17 ` [tip: perf/core] perf tools: Support CAP_PERFMON capability tip-bot2 for Alexey Budankov
2020-04-22 12:17 ` [Intel-gfx] " tip-bot2 for Alexey Budankov
2020-04-02 8:48 ` [PATCH v8 05/12] drm/i915/perf: open access for CAP_PERFMON privileged process Alexey Budankov
2020-04-02 8:48 ` [Intel-gfx] " Alexey Budankov
2020-04-22 12:17 ` [tip: perf/core] drm/i915/perf: Open " tip-bot2 for Alexey Budankov
2020-04-22 12:17 ` [Intel-gfx] " tip-bot2 for Alexey Budankov
2020-04-02 8:48 ` [PATCH v8 06/12] trace/bpf_trace: open " Alexey Budankov
2020-04-02 8:48 ` [Intel-gfx] " Alexey Budankov
2020-04-22 12:17 ` [tip: perf/core] trace/bpf_trace: Open " tip-bot2 for Alexey Budankov
2020-04-22 12:17 ` [Intel-gfx] " tip-bot2 for Alexey Budankov
2020-04-02 8:49 ` [PATCH v8 07/12] powerpc/perf: open " Alexey Budankov
2020-04-02 8:49 ` [Intel-gfx] " Alexey Budankov
2020-04-22 12:17 ` [tip: perf/core] " tip-bot2 for Alexey Budankov
2020-04-22 12:17 ` [Intel-gfx] " tip-bot2 for Alexey Budankov
2020-04-02 8:50 ` [PATCH v8 08/12] parisc/perf: " Alexey Budankov
2020-04-02 8:50 ` [Intel-gfx] " Alexey Budankov
2020-04-22 12:17 ` [tip: perf/core] " tip-bot2 for Alexey Budankov
2020-04-22 12:17 ` [Intel-gfx] " tip-bot2 for Alexey Budankov
2020-04-02 8:51 ` [PATCH v8 09/12] drivers/perf: " Alexey Budankov
2020-04-02 8:51 ` [Intel-gfx] " Alexey Budankov
2020-04-22 12:17 ` [tip: perf/core] drivers/perf: Open " tip-bot2 for Alexey Budankov
2020-04-22 12:17 ` [Intel-gfx] " tip-bot2 for Alexey Budankov
2020-04-02 8:53 ` [PATCH v8 10/12] drivers/oprofile: open " Alexey Budankov
2020-04-02 8:53 ` [Intel-gfx] " Alexey Budankov
2020-04-22 12:17 ` [tip: perf/core] drivers/oprofile: Open " tip-bot2 for Alexey Budankov
2020-04-22 12:17 ` [Intel-gfx] " tip-bot2 for Alexey Budankov
2020-04-02 8:54 ` [PATCH v8 11/12] doc/admin-guide: update perf-security.rst with CAP_PERFMON information Alexey Budankov
2020-04-02 8:54 ` [Intel-gfx] " Alexey Budankov
2020-04-22 12:17 ` [tip: perf/core] doc/admin-guide: Update " tip-bot2 for Alexey Budankov
2020-04-22 12:17 ` [Intel-gfx] " tip-bot2 for Alexey Budankov
2020-04-02 8:54 ` [PATCH v8 12/12] doc/admin-guide: update kernel.rst " Alexey Budankov
2020-04-02 8:54 ` [Intel-gfx] " Alexey Budankov
2020-04-05 14:10 ` Arnaldo Carvalho de Melo
2020-04-05 14:10 ` [Intel-gfx] " Arnaldo Carvalho de Melo
2020-04-05 14:41 ` Alexey Budankov
2020-04-05 14:41 ` [Intel-gfx] " Alexey Budankov
2020-04-05 14:54 ` Alexey Budankov
2020-04-05 14:54 ` [Intel-gfx] " Alexey Budankov
2020-04-05 15:05 ` Arnaldo Carvalho de Melo
2020-04-05 15:05 ` [Intel-gfx] " Arnaldo Carvalho de Melo
2020-04-05 15:51 ` Alexey Budankov
2020-04-05 15:51 ` [Intel-gfx] " Alexey Budankov
2020-04-22 12:17 ` [tip: perf/core] " tip-bot2 for Alexey Budankov
2020-04-22 12:17 ` [Intel-gfx] " tip-bot2 for Alexey Budankov
2020-04-02 9:37 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Introduce CAP_PERFMON to secure system performance monitoring and observability (rev5) Patchwork
2020-04-02 10:02 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2020-04-03 11:24 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork
2020-04-05 16:00 ` [Intel-gfx] ✗ Fi.CI.BUILD: failure for Introduce CAP_PERFMON to secure system performance monitoring and observability (rev6) Patchwork
2020-04-07 14:30 ` [PATCH v8 00/12] Introduce CAP_PERFMON to secure system performance monitoring and observability Arnaldo Carvalho de Melo
2020-04-07 14:30 ` [Intel-gfx] " Arnaldo Carvalho de Melo
2020-04-07 14:35 ` Arnaldo Carvalho de Melo
2020-04-07 14:35 ` [Intel-gfx] " Arnaldo Carvalho de Melo
2020-04-07 14:54 ` Alexey Budankov
2020-04-07 14:54 ` [Intel-gfx] " Alexey Budankov
2020-04-07 16:36 ` Arnaldo Carvalho de Melo
2020-04-07 16:36 ` [Intel-gfx] " Arnaldo Carvalho de Melo
2020-04-07 16:40 ` Arnaldo Carvalho de Melo
2020-04-07 16:40 ` [Intel-gfx] " Arnaldo Carvalho de Melo
2020-04-07 17:17 ` Alexey Budankov
2020-04-07 17:17 ` [Intel-gfx] " Alexey Budankov
2020-04-07 16:52 ` Alexey Budankov
2020-04-07 16:52 ` [Intel-gfx] " Alexey Budankov
2020-04-07 17:02 ` Arnaldo Carvalho de Melo
2020-04-07 17:02 ` [Intel-gfx] " Arnaldo Carvalho de Melo
2020-04-07 17:32 ` Alexey Budankov
2020-04-07 17:32 ` [Intel-gfx] " Alexey Budankov
2020-04-07 16:56 ` Arnaldo Carvalho de Melo
2020-04-07 16:56 ` [Intel-gfx] " Arnaldo Carvalho de Melo
2020-04-07 17:23 ` Arnaldo Carvalho de Melo
2020-04-07 17:23 ` [Intel-gfx] " Arnaldo Carvalho de Melo
2020-04-22 19:18 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Introduce CAP_PERFMON to secure system performance monitoring and observability (rev18) Patchwork
2020-04-22 19:43 ` [Intel-gfx] ✗ Fi.CI.BAT: failure " Patchwork
2020-07-10 13:31 ` [PATCH v8 00/12] Introduce CAP_PERFMON to secure system performance monitoring and observability Ravi Bangoria
2020-07-10 13:31 ` [Intel-gfx] " Ravi Bangoria
2020-07-10 14:30 ` Alexey Budankov
2020-07-10 14:30 ` [Intel-gfx] " Alexey Budankov
2020-07-10 17:09 ` Arnaldo Carvalho de Melo
2020-07-10 17:09 ` [Intel-gfx] " Arnaldo Carvalho de Melo
2020-07-13 9:48 ` Alexey Budankov
2020-07-13 9:48 ` [Intel-gfx] " Alexey Budankov
2020-07-13 12:17 ` Arnaldo Carvalho de Melo
2020-07-13 12:17 ` [Intel-gfx] " Arnaldo Carvalho de Melo
2020-07-13 12:37 ` Alexey Budankov
2020-07-13 12:37 ` [Intel-gfx] " Alexey Budankov
2020-07-13 18:51 ` Arnaldo Carvalho de Melo
2020-07-13 18:51 ` [Intel-gfx] " Arnaldo Carvalho de Melo
2020-07-14 10:59 ` Peter Zijlstra
2020-07-14 10:59 ` [Intel-gfx] " Peter Zijlstra
2020-07-14 15:27 ` Arnaldo Carvalho de Melo
2020-07-14 15:27 ` [Intel-gfx] " Arnaldo Carvalho de Melo
2020-07-21 13:06 ` Alexey Budankov
2020-07-21 13:06 ` [Intel-gfx] " Alexey Budankov
2020-07-22 11:30 ` Arnaldo Carvalho de Melo
2020-07-22 11:30 ` [Intel-gfx] " Arnaldo Carvalho de Melo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=ab15a8af-26a6-f8e7-cd7a-6b3fde99eaf9@linux.intel.com \
--to=alexey.budankov@linux.intel.com \
--cc=acme@kernel.org \
--cc=ak@linux.intel.com \
--cc=ast@kernel.org \
--cc=eranian@google.com \
--cc=ilubashe@akamai.com \
--cc=intel-gfx@lists.freedesktop.org \
--cc=jmorris@namei.org \
--cc=jolsa@redhat.com \
--cc=linux-doc@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-man@vger.kernel.org \
--cc=linux-security-module@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=namhyung@kernel.org \
--cc=peterz@infradead.org \
--cc=selinux@vger.kernel.org \
--cc=serge@hallyn.com \
--cc=songliubraving@fb.com \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.