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=-3.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_GIT 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 B6DD0C47404 for ; Wed, 9 Oct 2019 10:55:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8E51E20B7C for ; Wed, 9 Oct 2019 10:55:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="qqpha/Te" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730893AbfJIKzX (ORCPT ); Wed, 9 Oct 2019 06:55:23 -0400 Received: from userp2130.oracle.com ([156.151.31.86]:42494 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725953AbfJIKzW (ORCPT ); Wed, 9 Oct 2019 06:55:22 -0400 Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x99An3EM076380; Wed, 9 Oct 2019 10:54:25 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id; s=corp-2019-08-05; bh=M33GVO9Y3jme01jHHD3zcMXHqJ6aM2z9oePhh2hkmuM=; b=qqpha/Te0Pky6KVXQk6AfDXZU2rXagKbsGeiW09MRWld8zjLm9/Ca+V9NZIcRUTcP1Hp w/n76C552Hetap0fxKNnEQ9LoesxXYBtHMlazkm5/rKaq8t+L67kAFN8CLu6yeVTWF0s wyiJP5m6Bqi94EcYz3RRLU2ytkAMDkl8YB0uNEe2vIYai8pcGNSnD+gpdHHpH6vRxPCs eSQmKOJRg8QQNG+Y/UYNW30dTChC2GdjjKcrtFeM7JLrbudajEHPoMJCfB5LpJeYwKZ4 FnUtQeYQkIpc4mTqkcxGD99Qz2QUOihkg5ZrrxY/v2c3vHt+xJIyNEqNfjvvzTUSaKIn +w== Received: from userp3020.oracle.com (userp3020.oracle.com [156.151.31.79]) by userp2130.oracle.com with ESMTP id 2vejkukb03-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 09 Oct 2019 10:54:25 +0000 Received: from pps.filterd (userp3020.oracle.com [127.0.0.1]) by userp3020.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x99AmbN2162723; Wed, 9 Oct 2019 10:54:24 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userp3020.oracle.com with ESMTP id 2vh5caap72-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 09 Oct 2019 10:54:24 +0000 Received: from abhmp0013.oracle.com (abhmp0013.oracle.com [141.146.116.19]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id x99AsHxQ031048; Wed, 9 Oct 2019 10:54:19 GMT Received: from tomti.i.net-space.pl (/10.175.167.68) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 09 Oct 2019 03:54:16 -0700 From: Daniel Kiper To: linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org, x86@kernel.org, xen-devel@lists.xenproject.org Cc: ard.biesheuvel@linaro.org, boris.ostrovsky@oracle.com, bp@alien8.de, corbet@lwn.net, dave.hansen@linux.intel.com, luto@kernel.org, peterz@infradead.org, eric.snowberg@oracle.com, hpa@zytor.com, jgross@suse.com, konrad.wilk@oracle.com, mingo@redhat.com, ross.philipson@oracle.com, tglx@linutronix.de Subject: [PATCH v3 0/3] x86/boot: Introduce the kernel_info et consortes Date: Wed, 9 Oct 2019 12:53:55 +0200 Message-Id: <20191009105358.32256-1-daniel.kiper@oracle.com> X-Mailer: git-send-email 2.11.0 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9404 signatures=668684 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=672 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1908290000 definitions=main-1910090101 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9404 signatures=668684 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1011 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=747 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1908290000 definitions=main-1910090101 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Due to very limited space in the setup_header this patch series introduces new kernel_info struct which will be used to convey information from the kernel to the bootloader. This way the boot protocol can be extended regardless of the setup_header limitations. Additionally, the patch series introduces some convenience features like the setup_indirect struct and the kernel_info.setup_type_max field. Daniel Documentation/x86/boot.rst | 168 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ arch/x86/boot/Makefile | 2 +- arch/x86/boot/compressed/Makefile | 4 +- arch/x86/boot/compressed/kaslr.c | 12 ++++++ arch/x86/boot/compressed/kernel_info.S | 22 +++++++++++ arch/x86/boot/header.S | 3 +- arch/x86/boot/tools/build.c | 5 +++ arch/x86/include/uapi/asm/bootparam.h | 16 +++++++- arch/x86/kernel/e820.c | 11 ++++++ arch/x86/kernel/kdebugfs.c | 20 ++++++++-- arch/x86/kernel/ksysfs.c | 30 ++++++++++---- arch/x86/kernel/setup.c | 4 ++ arch/x86/mm/ioremap.c | 11 ++++++ 13 files changed, 292 insertions(+), 16 deletions(-) Daniel Kiper (3): x86/boot: Introduce the kernel_info x86/boot: Introduce the kernel_info.setup_type_max x86/boot: Introduce the setup_indirect