[v1,0/2] : Documentation/admin-guide: introduce perf-security.rst file and extend perf_event_paranoid documentation

Message

Alexey Budankov Nov. 19, 2018, 5:37 a.m. UTC

To facilitate informed decision making by system administrators [1]
to permit and manage access to PCL/Perf [2],[3] performance monitoring 
for multiple users perf-security.rst document suggested by Thomas Gleixner 
is introduced [4] that:

a) states PCL/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 PCL/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) PCL/Perf usage models and its security implications
b) PCL/Perf user interface, its changes and related security implications
c) security related implications of monitoring by a specific PCL PMU [2]

---
 Alexey Budankov (2):
	Documentation/admin-guide: update admin-guide index.rst
	Documentation/admin-guide: introduce perf-security.rst file

 Documentation/admin-guide/index.rst         |  1 +
 Documentation/admin-guide/perf-security.rst | 83 +++++++++++++++++++++++++++++
 2 files changed, 84 insertions(+)

---
[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