linux-kernel - Re: [PATCH v7 18/18] x86/fsgsbase/64: Add documentation for FSGSBASE

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Date:   Sun, 16 Jun 2019 20:48:00 +0000
From:   "Bae, Chang Seok" <chang.seok.bae@...el.com>
To:     Thomas Gleixner <tglx@...utronix.de>
CC:     Andy Lutomirski <luto@...nel.org>, Ingo Molnar <mingo@...nel.org>,
        "H . Peter Anvin" <hpa@...or.com>, Andi Kleen <ak@...ux.intel.com>,
        "Shankar, Ravi V" <ravi.v.shankar@...el.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Randy Dunlap <rdunlap@...radead.org>,
        "x86@...nel.org" <x86@...nel.org>, Jonathan Corbet <corbet@....net>
Subject: Re: [PATCH v7 18/18] x86/fsgsbase/64: Add documentation for FSGSBASE


> On Jun 16, 2019, at 09:05, Thomas Gleixner <tglx@...utronix.de> wrote:
> 
> On Sun, 16 Jun 2019, Bae, Chang Seok wrote:
>> 
>> Thanks. This is the diff though.
>> ...
> 
> WHAT? How is this related ?

No. Sigh on me.. Instead of the garbage, I hoped to point out these small version things.
(The delta against the WIP.x86/cpu branch)

diff --git a/Documentation/x86/x86_64/fsgs.rst b/Documentation/x86/x86_64/fsgs.rst
index 380c0b5..d5588e00 100644
--- a/Documentation/x86/x86_64/fsgs.rst
+++ b/Documentation/x86/x86_64/fsgs.rst
@@ -125,7 +125,7 @@ FSGSBASE instructions enablement
 FSGSBASE instructions compiler support
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-GCC version 4.6.4 and newer provide instrinsics for the FSGSBASE
+GCC version 6 and newer provide instrinsics for the FSGSBASE
 instructions. Clang supports them as well.
 
   =================== ===========================
@@ -141,7 +141,7 @@ code and the compiler option -mfsgsbase has to be added.
 Compiler support for FS/GS based addressing
 -------------------------------------------
 
-GCC version 6 and newer provide support for FS/GS based addressing via
+GCC version 4.6.4 and newer provide support for FS/GS based addressing via
 Named Address Spaces. GCC implements the following address space
 identifiers for x86: