[PATCH 4.14 0/5] perf machine: Workaround missing maps for x86 PTI entry trampolines

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Subject: [PATCH 4.14 0/5] perf machine: Workaround missing maps for x86 PTI entry trampolines
From: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Date: Wed, 21 Nov 2018 15:52:42 +0200
Cc: Andy Lutomirski <luto@xxxxxxxxxx>, Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Organization: Intel Finland Oy, Registered Address: PL 281, 00181 Helsinki, Business Identity Code: 0357606 - 4, Domiciled in Helsinki

Hi

x86 PTI trampolines were backported to 4.14, refer
commit: c631a16e5b84521ae80ab10d47cd6ccd2afc6817 ("x86/entry/64:
Create a per-CPU SYSCALL entry trampoline")
so the corresponding perf tools workaround also needs to be backported.
Here are 5 patches for 4.14 stable backported from 4.18, to address that.

Regards
Adrian

Follow-Ups:
- Re: [PATCH 4.14 0/5] perf machine: Workaround missing maps for x86 PTI entry trampolines
  - From: Sasha Levin
- [PATCH 4.14 5/5] perf test code-reading: Fix perf_env setup for PTI entry trampolines
  - From: Adrian Hunter
- [PATCH 4.14 4/5] perf machine: Workaround missing maps for x86 PTI entry trampolines
  - From: Adrian Hunter
- [PATCH 4.14 3/5] perf machine: Add nr_cpus_avail()
  - From: Adrian Hunter
- [PATCH 4.14 2/5] perf tools: Fix kernel_start for PTI on x86
  - From: Adrian Hunter
- [PATCH 4.14 1/5] perf machine: Add machine__is() to identify machine arch
  - From: Adrian Hunter

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