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=-6.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 AE486C11F6A for ; Thu, 1 Jul 2021 19:46:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9104B61410 for ; Thu, 1 Jul 2021 19:46:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233516AbhGATsg (ORCPT ); Thu, 1 Jul 2021 15:48:36 -0400 Received: from mail.kernel.org ([198.145.29.99]:49514 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229894AbhGATsd (ORCPT ); Thu, 1 Jul 2021 15:48:33 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id DF76361405; Thu, 1 Jul 2021 19:45:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1625168762; bh=NPkS1ghP8adWFqTQtg/FLb8BIjLGbYN/OQB5Qfuakjo=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=DLRuk6JalTWH0mDWe7EC6fEfJgk7g+FtSBLJIHt3CgATtLxj6XtPeCTq1tI3bQyrv cxr5ZW7XgFfP8OByZ0B3m3xBX8mb80llXmuMrmvd/xsrKFX3PS+KUb4PLbe7ixozuF khnSIEHvGcHyXCrzuuXrvY+NU6x0e3+QsYlrrehReV7nmaUIqeG+k4SMS07BoFPdIX iKwlf/Uebmy9o7NcjKDER/Zk2Xn7UzksS4vLCPs9VzPc79S8AE8zn/JzV5YjvTCuEA kEiaxXjNS4zH3vakx6EY5YRJzmSZSyNxtIJWbDXdDjGv9bZpw7fRe84JgjjorHHx/u Az/6ZOpQvvGkQ== Date: Thu, 1 Jul 2021 22:45:52 +0300 From: Mike Rapoport To: Dave Hansen Cc: x86@kernel.org, "H. Peter Anvin" , Andy Lutomirski , Andy Shevchenko , Ard Biesheuvel , Baoquan He , Borislav Petkov , Darren Hart , Dave Young , Hugh Dickins , Ingo Molnar , Jonathan Corbet , Lianbo Jiang , Mike Rapoport , Randy Dunlap , Thomas Gleixner , linux-doc@vger.kernel.org, linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org, platform-driver-x86@vger.kernel.org Subject: Re: [PATCH 1/3] x86/setup: always reserve the first 1M of RAM Message-ID: References: <20210601075354.5149-1-rppt@kernel.org> <20210601075354.5149-2-rppt@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jul 01, 2021 at 10:15:29AM -0700, Dave Hansen wrote: > On 6/1/21 12:53 AM, Mike Rapoport wrote: > > There are BIOSes that are known to corrupt the memory under 1M, or more > > precisely under 640K because the memory above 640K is anyway reserved for > > the EGA/VGA frame buffer and BIOS. > > Should there have been a Cc: stable@ on this? > > Seems like the kind of thing we'd want backported. The commit this patch is fixing (a799c2bd29d1) went to v5.13-rc1, so there is no need to backport it. -- Sincerely yours, Mike.