From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.alien8.de (mail.alien8.de [65.109.113.108]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C3F83254AFE; Mon, 12 May 2025 11:01:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=65.109.113.108 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747047679; cv=none; b=R4e1htY9fGuvrbcnT8+se+RSQkJX7uKPc9cMmKBQCsDVPCE9VJZnYmRrbM34J/2kKub4lFKYAJRR3hpHaooxiUGtQBp2oyx6gHSkLjjKDVK9TKLxgJES/if2xY7husjdwNSQooQIyrFea6RAwHKPgYycF6mqMMxGpVktIf1I81A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747047679; c=relaxed/simple; bh=YgwBukWEosEIHWzTEsDv8Iae7lg5GArJS4aQGtAZfN8=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=CZ60vfGti6qZPQhfTAmXKPfgutvObMnBkQfvCGPfUXdaxpSui7UhKzulAYv3aUCm0zP4cwo8hGo7ycMqICBcVCXj3JvzOI703Up3FAUcwx5rBU498Y91wBoDCdWwVtGGiDjfpXEjxirP14ggjBEdU2512sXomyt5KBL9MWNd4uA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=alien8.de; spf=pass smtp.mailfrom=alien8.de; dkim=pass (4096-bit key) header.d=alien8.de header.i=@alien8.de header.b=SOXzQQjf; arc=none smtp.client-ip=65.109.113.108 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=alien8.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=alien8.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (4096-bit key) header.d=alien8.de header.i=@alien8.de header.b="SOXzQQjf" Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTP id 566C040E0240; Mon, 12 May 2025 11:01:15 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at mail.alien8.de Authentication-Results: mail.alien8.de (amavisd-new); dkim=pass (4096-bit key) header.d=alien8.de Received: from mail.alien8.de ([127.0.0.1]) by localhost (mail.alien8.de [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id hCkH_1Sc274B; Mon, 12 May 2025 11:01:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=alien8; t=1747047667; bh=QKy89tNXgNFis/DTzsa49kV8LAatgNLvxLkLTbLtMQM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=SOXzQQjfUzh0ZsJjQVsdz4u/Q2feLkgC9dHGooiJP2/NoWIh1lyvUwuWKTCSqd27W 0UBlCxD+8HbBifIkGFhRfoeCrupj2QfCdwlOk6lp2eEbwpZWaUvAu5eQNcVxytsM1a HKYoJE/a1k051Uzwbg5vPYqDQQoO26756rdlxro4cMGphAQU9ILbf2QGuAcch6gBlE 8lXCkke3xw84Mxed8spj6kFaQ0Eprx74WH1IsVmefTiv2BZaOD8Uzr8YKxpQI3IHA6 k3oCD+f/fCjrNug8aCtTvcm5gUmK7cbsxm0xi9O/2btNJt8NXtZEt+Gf9Rh/Gxoc9P TvHpKKvPuY002FwalJc5MvzNXCOVku6r77+FSm+uUfTrO0zFWmRd1OZBwf7QTnyAFN 6+v7FDJfnmYueF8nm7Ilh8wuYZLmpQJ3Xwz+i4MKuk0x+ylFunKlj75SMJdY0krOdG NZKFPCC0D7c2mp+kWj8wTx9wOcJnNmcVuCAsg06qSa5xBIfEtHSm0LCyBus/Vx3/gp 5yQSAZ5UrtlIxS78adQWAb79H1zHcICSeVkbUZNuOwr/4l/avnUmiPOFhIadbQHYN0 xlZVWphz8slfyFNcUIDNTLvm6aNJzGBe4joL663Wzk2UrVpGoPVTF5ODAy/bTYlgNt P3+Vw3G6wqKTlcN0TnqsmtSA= Received: from zn.tnic (p579690ee.dip0.t-ipconnect.de [87.150.144.238]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature ECDSA (P-256) server-digest SHA256) (No client certificate requested) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 41EF340E023B; Mon, 12 May 2025 11:00:56 +0000 (UTC) Date: Mon, 12 May 2025 13:00:49 +0200 From: Borislav Petkov To: Jiaqing Zhao Cc: Thomas Gleixner , Ingo Molnar , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Bernhard Kaindl , Andi Kleen , Li Fei , stable@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] x86/mtrr: Check if fixed-range MTRR exists in mtrr_save_fixed_ranges() Message-ID: <20250512110049.GCaCHU4feKMhVUmcMY@fat_crate.local> References: <20250509170633.3411169-2-jiaqing.zhao@linux.intel.com> <20250509173225.GDaB48KZvZSA9QLUaR@fat_crate.local> <0ec52e49-3996-48e2-a16b-5d7eb0a4c8a6@linux.intel.com> <1862275b-e7ca-4fa0-bdea-f739e90d9d22@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <1862275b-e7ca-4fa0-bdea-f739e90d9d22@linux.intel.com> On Mon, May 12, 2025 at 05:24:21PM +0800, Jiaqing Zhao wrote: > Actually it is happening on virtualized platform. A recent version of > ACRN hypervisor has removed emulated fixed-range MTRRs. Oh ok, nothing urgent then. Will queue it for the next merge window. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette