Date: Tue, 27 Nov 2018 11:11:47 +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>, Andi Kleen <ak@...ux.intel.com> Cc: Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...hat.com>, Arnaldo Carvalho de Melo <acme@...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 v4 0/2] Documentation/admin-guide: introduce perf-security.rst file and extend perf_event_paranoid documentation To facilitate informed decision making by system administrators  to permit and manage access to Perf Events (perf_events) / Perf tool (Perf) , performance monitoring for multiple users perf-security.rst document suggested by Thomas Gleixner is introduced  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 ,. 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  --- 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 | 97 +++++++++++++++++++++ 2 files changed, 98 insertions(+) create mode 100644 Documentation/admin-guide/perf-security.rst --- Changes in v4: - added docs for perf_event related capabilities 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 ---  https://marc.info/?l=linux-kernel&m=153815883923913&w=2  http://man7.org/linux/man-pages/man2/perf_event_open.2.html  https://perf.wiki.kernel.org/index.php/Main_Page  https://marc.info/?l=linux-kernel&m=153837512226838&w=2  https://marc.info/?l=linux-kernel&m=153736008310781&w=2  https://lkml.org/lkml/2018/5/21/156
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