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Date:   Fri, 30 Aug 2019 12:25:20 +0200
From:   Joerg Roedel <jroedel@suse.de>
To:     Thomas Gleixner <tglx@linutronix.de>
Cc:     LKML <linux-kernel@vger.kernel.org>, x86@kernel.org,
        Song Liu <songliubraving@fb.com>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        Andy Lutomirski <luto@kernel.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Rik van Riel <riel@surriel.com>
Subject: Re: [patch 2/2] x86/mm/pti: Do not invoke PTI functions when PTI is
 disabled
Message-ID: <20190830102520.GH17192@suse.de>
References: <20190828142445.454151604@linutronix.de>
 <20190828143124.063353972@linutronix.de>
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On Wed, Aug 28, 2019 at 04:24:47PM +0200, Thomas Gleixner wrote:
> --- a/arch/x86/mm/pti.c
> +++ b/arch/x86/mm/pti.c
> @@ -668,6 +668,8 @@ void __init pti_init(void)
>   */
>  void pti_finalize(void)
>  {
> +	if (!boot_cpu_has(X86_FEATURE_PTI))
> +		return;
>  	/*
>  	 * We need to clone everything (again) that maps parts of the
>  	 * kernel image.
>

Reviewed-by: Joerg Roedel <jroedel@suse.de>