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Message-ID: <6cfb235a-59bc-48f0-3425-59c5b6431b12@linux.intel.com>
Date: Mon, 26 Nov 2018 11:57:11 +0300
From: Alexey Budankov <alexey.budankov@...ux.intel.com>
To: Jonatan Corbet <corbet@....net>, Thomas Gleixner <tglx@...utronix.de>,
Kees Cook <keescook@...omium.org>, Jann Horn <jannh@...gle.com>,
Ingo Molnar <mingo@...hat.com>, Peter Zijlstra <peterz@...radead.org>,
Arnaldo Carvalho de Melo <acme@...nel.org>, Andi Kleen <ak@...ux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...hat.com>, Namhyung Kim <namhyung@...nel.org>,
Mark Rutland <mark.rutland@....com>, Tvrtko Ursulin <tursulin@...ulin.net>,
linux-kernel <linux-kernel@...r.kernel.org>,
"kernel-hardening@...ts.openwall.com" <kernel-hardening@...ts.openwall.com>,
"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>
Subject: [PATCH v3 0/2] Documentation/admin-guide: introduce perf-security.rst
file and extend perf_event_paranoid documentation
To facilitate informed decision making by system administrators [1]
to permit and manage access to Perf Events (perf_events) / Perf tool
(Perf) [2],[3] performance monitoring for multiple users perf-security.rst
document suggested by Thomas Gleixner is introduced [4] that:
a) states perf_events/Perf access security concerns for multi user environment
b) refers to base Linux access control and management principles
c) extends documentation of possible perf_event_paranoid knob settings
The file serves as single knowledge source for perf_events/Perf security and
access control related matter according to decisions, discussion and
PoC prototype previously made here [5],[6].
The file can later be extended with information describing:
a) perf_events/Perf usage models and its security implications
b) perf_events/Perf user interface, its changes and related security implications
c) security related implications of monitoring by a specific perf_events PMU [2]
---
Alexey Budankov (2):
Documentation/admin-guide: introduce perf-security.rst file
Documentation/admin-guide: update admin-guide index.rst
Documentation/admin-guide/index.rst | 1 +
Documentation/admin-guide/perf-security.rst | 77 +++++++++++++++++++++
2 files changed, 78 insertions(+)
create mode 100644 Documentation/admin-guide/perf-security.rst
---
Changes in v3:
- toning down of the markup for "scope, access and resource"
- adding definite article for "Linux implementation"
Changes in v2:
- reverted patches order in the set to avoid CI issue
- replaced old PCL referencing by PE (Perf Events)
- skipped >=3 setting documentation at the moment
---
[1] https://marc.info/?l=linux-kernel&m=153815883923913&w=2
[2] http://man7.org/linux/man-pages/man2/perf_event_open.2.html
[3] https://perf.wiki.kernel.org/index.php/Main_Page
[4] https://marc.info/?l=linux-kernel&m=153837512226838&w=2
[5] https://marc.info/?l=linux-kernel&m=153736008310781&w=2
[6] https://lkml.org/lkml/2018/5/21/156
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