linux-kernel - Re: [PATCH V4 2/3] kallsyms, x86: Export addresses of PTI entry trampolines

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Date:   Wed, 6 Jun 2018 15:14:20 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Adrian Hunter <adrian.hunter@...el.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Ingo Molnar <mingo@...hat.com>,
        Andy Lutomirski <luto@...nel.org>,
        "H. Peter Anvin" <hpa@...or.com>, Andi Kleen <ak@...ux.intel.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Joerg Roedel <joro@...tes.org>, Jiri Olsa <jolsa@...hat.com>,
        linux-kernel@...r.kernel.org, x86@...nel.org
Subject: Re: [PATCH V4 2/3] kallsyms, x86: Export addresses of PTI entry
 trampolines

On Wed, Jun 06, 2018 at 03:54:10PM +0300, Adrian Hunter wrote:
> From: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
> 
> Currently, the addresses of PTI entry trampolines are not exported to user
> space. Kernel profiling tools need these addresses to identify the kernel
> code, so add a symbol and address for each CPU's PTI entry trampoline.
> 
> Signed-off-by: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
> Acked-by: Andi Kleen <ak@...ux.intel.com>

Thanks for the Changelog,

Acked-by: Peter Zijlstra (Intel) <peterz@...radead.org>