linux-kernel - Re: [patch 12/14] x86/cpu: Prepare TSS.IST setup for guard pages

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Message-ID: <20190402165720.GD29004@linux.intel.com>
Date:   Tue, 2 Apr 2019 09:57:21 -0700
From:   Sean Christopherson <sean.j.christopherson@...el.com>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     LKML <linux-kernel@...r.kernel.org>, x86@...nel.org,
        Andy Lutomirski <luto@...nel.org>,
        Josh Poimboeuf <jpoimboe@...hat.com>
Subject: Re: [patch 12/14] x86/cpu: Prepare TSS.IST setup for guard pages

On Sun, Mar 31, 2019 at 11:40:32PM +0200, Thomas Gleixner wrote:
> Convert the TSS.IST setup code to use the cpu entry area information
> directly instead of assuming a linear mapping of the IST stacks.
> 
> The store to orig_ist[] is not longer required as there are no users
                             ^^^
                             no
> anymore.
> 
> This is the last preparatory step for IST guard pages.
> 
> Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
> ---