linux-kernel - Re: [PATCH 3/5] x86/mce: Use msr_ops in prepare

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Message-ID: <YU2LwHEhv0bWj4lS@zn.tnic>
Date:   Fri, 24 Sep 2021 10:26:40 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Smita Koralahalli <Smita.KoralahalliChannabasappa@....com>
Cc:     x86@...nel.org, linux-edac@...r.kernel.org,
        linux-kernel@...r.kernel.org, Tony Luck <tony.luck@...el.com>,
        "H . Peter Anvin" <hpa@...or.com>, yazen.ghannam@....com
Subject: Re: [PATCH 3/5] x86/mce: Use msr_ops in prepare_msrs()

On Wed, Sep 15, 2021 at 06:27:37PM -0500, Smita Koralahalli wrote:
> Replace MCx_{STATUS, ADDR, MISC} macros with msr_ops.
> 
> Also, restructure the code to avoid multiple initializations for MCA
> registers. SMCA machines define a different set of MSRs for MCA registers
> and msr_ops initializes appropriate MSRs for SMCA and legacy processors.
> 
> Initialize MCA_MISC and MCA_SYND registers at the end after initializing
> MCx_{STATUS, DESTAT} which is further explained in the next patch.
> 
> Make msr_ops exportable in order to be accessible from mce-inject module.
> 
> Signed-off-by: Smita Koralahalli <Smita.KoralahalliChannabasappa@....com>
> ---
>  arch/x86/kernel/cpu/mce/core.c   |  1 +
>  arch/x86/kernel/cpu/mce/inject.c | 27 +++++++++++++--------------
>  2 files changed, 14 insertions(+), 14 deletions(-)

https://git.kernel.org/tip/8121b8f947be0033f567619be204639a50cad298

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette