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 X-Spam-Level: X-Spam-Status: No, score=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id ED5BCC48BDF for ; Fri, 18 Jun 2021 15:05:55 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 9920861369 for ; Fri, 18 Jun 2021 15:05:55 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9920861369 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=alien8.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 28AF36B007B; Fri, 18 Jun 2021 11:05:55 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 262256B007D; Fri, 18 Jun 2021 11:05:55 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 12A316B007E; Fri, 18 Jun 2021 11:05:55 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0239.hostedemail.com [216.40.44.239]) by kanga.kvack.org (Postfix) with ESMTP id D82B36B007B for ; Fri, 18 Jun 2021 11:05:54 -0400 (EDT) Received: from smtpin10.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 804FDF04D for ; Fri, 18 Jun 2021 15:05:54 +0000 (UTC) X-FDA: 78267169428.10.9FB4E99 Received: from mail.skyhub.de (mail.skyhub.de [5.9.137.197]) by imf11.hostedemail.com (Postfix) with ESMTP id 31299200110B for ; Fri, 18 Jun 2021 15:05:46 +0000 (UTC) Received: from zn.tnic (p200300ec2f0dd800f1d29af1870b9e89.dip0.t-ipconnect.de [IPv6:2003:ec:2f0d:d800:f1d2:9af1:870b:9e89]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id E16551EC0529; Fri, 18 Jun 2021 17:05:42 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1624028743; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=DAkmjtSEjAQW5/oSQSGY2SJZEOQXFtsl+lpahSbt7CM=; b=Ol1RhoAL2zOpnn55wSrncRMqg5PShyikP6yN9Dd9Spb+mo2L1xWn7DUx8YDT6MBohBRh4j r4JUcLI0Bq1CtLIQIkucqpI/IRSrlQ8P5Qg6k9hoOVYEc08pew3bLadc5ekrVfBLtZef1X N+VDfH4YnAnzuSIy9dUDc4cKbLo9mC4= Date: Fri, 18 Jun 2021 17:05:28 +0200 From: Borislav Petkov To: Brijesh Singh Cc: x86@kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, linux-efi@vger.kernel.org, platform-driver-x86@vger.kernel.org, linux-coco@lists.linux.dev, linux-mm@kvack.org, linux-crypto@vger.kernel.org, Thomas Gleixner , Ingo Molnar , Joerg Roedel , Tom Lendacky , "H. Peter Anvin" , Ard Biesheuvel , Paolo Bonzini , Sean Christopherson , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Andy Lutomirski , Dave Hansen , Sergio Lopez , Peter Gonda , Peter Zijlstra , Srinivas Pandruvada , David Rientjes , tony.luck@intel.com, npmccallum@redhat.com Subject: Re: [PATCH Part1 RFC v3 20/22] x86/boot: Add Confidential Computing address to setup_header Message-ID: References: <20210602140416.23573-1-brijesh.singh@amd.com> <20210602140416.23573-21-brijesh.singh@amd.com> <15568c80-c9a9-5602-d940-264af87bed98@amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <15568c80-c9a9-5602-d940-264af87bed98@amd.com> X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 31299200110B Authentication-Results: imf11.hostedemail.com; dkim=temperror ("DNS error when getting key") header.d=alien8.de header.s=dkim header.b=Ol1RhoAL; spf=temperror (imf11.hostedemail.com: error in processing during lookup of bp@alien8.de: DNS error) smtp.mailfrom=bp@alien8.de; dmarc=temperror reason="query timed out" header.from=alien8.de (policy=temperror) X-Stat-Signature: 4z6e1ct7skppjmyy6731rhnyzi3xb9jf X-HE-Tag: 1624028746-479660 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Fri, Jun 18, 2021 at 08:57:12AM -0500, Brijesh Singh wrote: > Don't have any strong reason to keep it separate, I can define a new > type and use the setup_data to pass this information. setup_data is exactly for use cases like that - pass a bunch of data to the kernel. So there's no need for a separate thing. Also see that kernel_info thing which got added recently for read_only data. Thx. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette