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[23.128.96.19]) by mx.google.com with ESMTPS id s5si4439023pjr.111.2022.02.09.03.28.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 09 Feb 2022 03:28:46 -0800 (PST) Received-SPF: softfail (google.com: domain of transitioning linux-kernel-owner@vger.kernel.org does not designate 23.128.96.19 as permitted sender) client-ip=23.128.96.19; Authentication-Results: mx.google.com; dkim=pass header.i=@alien8.de header.s=dkim header.b=gGcQZyoY; spf=softfail (google.com: domain of transitioning linux-kernel-owner@vger.kernel.org does not designate 23.128.96.19 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alien8.de Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 8B1CEE01A2DF; Wed, 9 Feb 2022 01:50:45 -0800 (PST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347576AbiBGRc3 (ORCPT + 99 others); Mon, 7 Feb 2022 12:32:29 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47712 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1353792AbiBGR2P (ORCPT ); Mon, 7 Feb 2022 12:28:15 -0500 Received: from mail.skyhub.de (mail.skyhub.de [5.9.137.197]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2819EC0401D5 for ; Mon, 7 Feb 2022 09:28:15 -0800 (PST) Received: from zn.tnic (dslb-088-067-221-104.088.067.pools.vodafone-ip.de [88.67.221.104]) (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 8B1BC1EC01A9; Mon, 7 Feb 2022 18:28:09 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1644254889; 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=Mq5DqFrbAk4eLWGR1kCn5L7Kj+LnBRVB7faRQPyb3mA=; b=gGcQZyoYy4P5r5twm3QRWRVnPxg0ipO83eyZK9oA7n1CE4dLjLc9BHzZNPeIZVXuiGGs2Z pV7lER6Qwg6fVDMR+Tk559NHebu6gR1r3ycv/qPNoigDSebo49rJ7QsMe4SeOauzsw/Agi mRx8V9ZX/OXg94NuW/jCnbFMC61taz8= Date: Mon, 7 Feb 2022 18:28:04 +0100 From: Borislav Petkov To: Dave Hansen Cc: "Kirill A. Shutemov" , tglx@linutronix.de, mingo@redhat.com, luto@kernel.org, peterz@infradead.org, sathyanarayanan.kuppuswamy@linux.intel.com, aarcange@redhat.com, ak@linux.intel.com, dan.j.williams@intel.com, david@redhat.com, hpa@zytor.com, jgross@suse.com, jmattson@google.com, joro@8bytes.org, jpoimboe@redhat.com, knsathya@kernel.org, pbonzini@redhat.com, sdeep@vmware.com, seanjc@google.com, tony.luck@intel.com, vkuznets@redhat.com, wanpengli@tencent.com, x86@kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCHv2 22/29] x86/tdx: Make pages shared in ioremap() Message-ID: References: <20220124150215.36893-1-kirill.shutemov@linux.intel.com> <20220124150215.36893-23-kirill.shutemov@linux.intel.com> <1d77e91c-e151-7846-6cd4-6264236ca5ae@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <1d77e91c-e151-7846-6cd4-6264236ca5ae@intel.com> X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RDNS_NONE,SPF_HELO_NONE,T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Feb 07, 2022 at 08:57:39AM -0800, Dave Hansen wrote: > We can surely *do* this with cc_something() helpers. It's just not as > easy as making cc_set/cc_clear(). Sure, that's easy: cc_pgprot_{enc,dec}() or so. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette