linux-kernel - Re: [PATCH v6 2/6] mm/mmzone: Tag pg_data

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Message-ID: <202202071319.846BFE23@keescook>
Date:   Mon, 7 Feb 2022 13:19:35 -0800
From:   Kees Cook <keescook@...omium.org>
To:     Martin Fernandez <martin.fernandez@...ypsium.com>
Cc:     linux-kernel@...r.kernel.org, linux-efi@...r.kernel.org,
        platform-driver-x86@...r.kernel.org, linux-mm@...ck.org,
        tglx@...utronix.de, mingo@...hat.com, bp@...en8.de,
        dave.hansen@...ux.intel.com, x86@...nel.org, hpa@...or.com,
        ardb@...nel.org, dvhart@...radead.org, andy@...radead.org,
        gregkh@...uxfoundation.org, rafael@...nel.org, rppt@...nel.org,
        akpm@...ux-foundation.org, daniel.gutson@...ypsium.com,
        hughsient@...il.com, alex.bazhaniuk@...ypsium.com,
        alison.schofield@...el.com
Subject: Re: [PATCH v6 2/6] mm/mmzone: Tag pg_data_t with crypto capabilities

On Thu, Feb 03, 2022 at 01:43:24PM -0300, Martin Fernandez wrote:
> Add a new member in the pg_data_t struct tell whether the node
> corresponding to that pg_data_t is able to do hardware memory encryption.
> 
> This will be read from sysfs.
> 
> Signed-off-by: Martin Fernandez <martin.fernandez@...ypsium.com>

Seems reasonable, and doesn't grow the structure size. :)

Reviewed-by: Kees Cook <keescook@...omium.org>

-- 
Kees Cook