linux-kernel - Re: [patch 07/41] x86/fpu: Simplify PTRACE

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Message-ID: <b396ad22-8a1e-07a0-f744-9b443d63c593@kernel.org>
Date:   Fri, 11 Jun 2021 11:47:54 -0700
From:   Andy Lutomirski <luto@...nel.org>
To:     Thomas Gleixner <tglx@...utronix.de>,
        LKML <linux-kernel@...r.kernel.org>
Cc:     Dave Hansen <dave.hansen@...ux.intel.com>,
        Fenghua Yu <fenghua.yu@...el.com>,
        Tony Luck <tony.luck@...el.com>,
        Yu-cheng Yu <yu-cheng.yu@...el.com>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Borislav Petkov <bp@...e.de>,
        Peter Zijlstra <peterz@...radead.org>,
        Kan Liang <kan.liang@...ux.intel.com>
Subject: Re: [patch 07/41] x86/fpu: Simplify PTRACE_GETREGS code

On 6/11/21 9:15 AM, Thomas Gleixner wrote:
> From: Dave Hansen <dave.hansen@...ux.intel.com>
> 
> ptrace() has interfaces that let a ptracer inspect a ptracee's register state.
> This includes XSAVE state.  The ptrace() ABI includes a hardware-format XSAVE
> buffer for both the SETREGS and GETREGS interfaces.

Reviewed-by: Andy Lutomirski <luto@...nel.org>