From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D43EBC433FE for ; Mon, 7 Feb 2022 21:19:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238087AbiBGVTl (ORCPT ); Mon, 7 Feb 2022 16:19:41 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45378 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231264AbiBGVTh (ORCPT ); Mon, 7 Feb 2022 16:19:37 -0500 Received: from mail-pj1-x1035.google.com (mail-pj1-x1035.google.com [IPv6:2607:f8b0:4864:20::1035]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2F86EC06173B for ; Mon, 7 Feb 2022 13:19:37 -0800 (PST) Received: by mail-pj1-x1035.google.com with SMTP id on2so5807937pjb.4 for ; Mon, 07 Feb 2022 13:19:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=pdFN1ZKsA/YSf3iQfelOyB5WGeNlhqGxKv0TjnYhqCw=; b=hGP2z8WlqXW91XSk1T+J/0Fo1BNWKmusXsyof4H8KgNs72J9pJKnvxlUoezJY4h2X2 Sr9MFA0oeHSSVv73r42USLZrOWrOUCIVOlmdpqMijvS6WQpbTwVFf91QMXwjThIolVo0 3X/sm+d1zY1DauWA/+SbpQTkDuSGu1z6QeSXY= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=pdFN1ZKsA/YSf3iQfelOyB5WGeNlhqGxKv0TjnYhqCw=; b=Q1o+gMM1QUEdZc3uInu7EGMnZURtAZHJFq8QcBETQ18jPgBtODkcjk3fmUtgsW+RBX lEZ3eYkV+fC4hT5lK/GtgkRmdS5mowx8Hy4mIVzIL7RDMDJ/7UOOTAztsEkJmSqmLzx7 kpZ6rSaRHa8j1udr3+x8A3EZNpnc2MebI6Vwt2/S8HcdcCdB1HdjLQjZomdAPkMAnzn4 qqnUQ9LmUgyRToaIGWvGeMbYsC2kn71JpXE524HnVyB2DgGsmopl0K099Dg9wzN4xs/h CnXspH9an47zlJlZ8pBuqRNYUj/RZNJlAvXoa7BusmdpUHzIk8uJPP04ZS+jsPiyerEk OuNg== X-Gm-Message-State: AOAM531+smI5N6hMiOVrbTYBKy1K1SCBd43Fag8+hFyjI3iu5Lj4LcPA fvK9ZW+eKOwaWGHPfrgVS+cOhhUjX47YgQ== X-Google-Smtp-Source: ABdhPJymf2h+6EaVKb8/3BSQSEdv13EBA0Lx1vE86AVMgBddqJ2jeXxg3Bg3b4zVwzdlUgbqsFy0Kg== X-Received: by 2002:a17:902:ce8a:: with SMTP id f10mr1164071plg.35.1644268776718; Mon, 07 Feb 2022 13:19:36 -0800 (PST) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id 8sm264182pjs.39.2022.02.07.13.19.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Feb 2022 13:19:36 -0800 (PST) Date: Mon, 7 Feb 2022 13:19:35 -0800 From: Kees Cook To: Martin Fernandez Cc: linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org, platform-driver-x86@vger.kernel.org, linux-mm@kvack.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, ardb@kernel.org, dvhart@infradead.org, andy@infradead.org, gregkh@linuxfoundation.org, rafael@kernel.org, rppt@kernel.org, akpm@linux-foundation.org, daniel.gutson@eclypsium.com, hughsient@gmail.com, alex.bazhaniuk@eclypsium.com, alison.schofield@intel.com Subject: Re: [PATCH v6 2/6] mm/mmzone: Tag pg_data_t with crypto capabilities Message-ID: <202202071319.846BFE23@keescook> References: <20220203164328.203629-1-martin.fernandez@eclypsium.com> <20220203164328.203629-3-martin.fernandez@eclypsium.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220203164328.203629-3-martin.fernandez@eclypsium.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 Seems reasonable, and doesn't grow the structure size. :) Reviewed-by: Kees Cook -- Kees Cook