linux-kernel - Re: [PATCH v3] x86/microcode/intel: Extend BDW late-loading with LLC size check

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Message-ID: <20180119120140.7l4dnosytqxh4cuj@pd.tnic>
Date:   Fri, 19 Jan 2018 13:01:40 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     "Luck, Tony" <tony.luck@...el.com>,
        Jia Zhang <zhang.jia@...ux.alibaba.com>
Cc:     "hmh@....eng.br" <hmh@....eng.br>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "hpa@...or.com" <hpa@...or.com>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "x86@...nel.org" <x86@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3] x86/microcode/intel: Extend BDW late-loading with LLC
 size check

On Fri, Jan 19, 2018 at 01:03:09AM +0000, Luck, Tony wrote:
> 	if (c->x86 == 6 &&
>  	    c->x86_model == INTEL_FAM6_BROADWELL_X &&
>  	    c->x86_mask == 0x01 &&
> +	    llc_size_per_core > 2621440 &&
>  	    c->microcode < 0x0b000021) {
>  		pr_err_once("Erratum BDF90: late loading with revision < 0x0b000021 (0x%x) disabled.\n", c->microcode);
>  		pr_err_once("Please consider either early loading through initrd/built-in or a potential BIOS update.\n");
> 
> This version looks good to me.
> 
> Acked-by: Tony Luck <tony.luck@...el.com>

Applied, thanks.

-- 
Regards/Gruss,
    Boris.

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