From patchwork Thu Dec 2 22:32:09 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Lobakin X-Patchwork-Id: 12653715 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0CA2AC4321E for ; Thu, 2 Dec 2021 22:33:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349879AbhLBWgv (ORCPT ); Thu, 2 Dec 2021 17:36:51 -0500 Received: from mga12.intel.com ([192.55.52.136]:32073 "EHLO mga12.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349494AbhLBWgi (ORCPT ); Thu, 2 Dec 2021 17:36:38 -0500 X-IronPort-AV: E=McAfee;i="6200,9189,10186"; a="216877439" X-IronPort-AV: E=Sophos;i="5.87,282,1631602800"; d="scan'208";a="216877439" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Dec 2021 14:33:15 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.87,282,1631602800"; d="scan'208";a="541402390" Received: from irvmail001.ir.intel.com ([10.43.11.63]) by orsmga001.jf.intel.com with ESMTP; 02 Dec 2021 14:33:07 -0800 Received: from newjersey.igk.intel.com (newjersey.igk.intel.com [10.102.20.203]) by irvmail001.ir.intel.com (8.14.3/8.13.6/MailSET/Hub) with ESMTP id 1B2MWmYa028552; Thu, 2 Dec 2021 22:33:05 GMT From: Alexander Lobakin To: linux-hardening@vger.kernel.org, x86@kernel.org Cc: Alexander Lobakin , Jesse Brandeburg , Kristen Carlson Accardi , Kees Cook , Miklos Szeredi , Ard Biesheuvel , Tony Luck , Bruce Schlobohm , Jessica Yu , kernel test robot , Miroslav Benes , Evgenii Shatokhin , Jonathan Corbet , Masahiro Yamada , Michal Marek , Nick Desaulniers , Herbert Xu , "David S. Miller" , Thomas Gleixner , Will Deacon , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Andy Lutomirski , Peter Zijlstra , Arnd Bergmann , Josh Poimboeuf , Nathan Chancellor , Masami Hiramatsu , Marios Pomonis , Sami Tolvanen , linux-kernel@vger.kernel.org, linux-kbuild@vger.kernel.org, linux-arch@vger.kernel.org, live-patching@vger.kernel.org, llvm@lists.linux.dev Subject: [PATCH v8 09/14] x86/boot: allow FG-KASLR to be selected Date: Thu, 2 Dec 2021 23:32:09 +0100 Message-Id: <20211202223214.72888-10-alexandr.lobakin@intel.com> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211202223214.72888-1-alexandr.lobakin@intel.com> References: <20211202223214.72888-1-alexandr.lobakin@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kbuild@vger.kernel.org Now that we have full support of FG-KASLR from both kernel core and x86 code, allow FG-KASLR to be enabled for x86_64 if the "regular" KASLR is also turned on. Signed-off-by: Alexander Lobakin --- arch/x86/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 7399327d1eff..970a03c7588d 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -75,6 +75,7 @@ config X86 select ARCH_HAS_EARLY_DEBUG if KGDB select ARCH_HAS_ELF_RANDOMIZE select ARCH_HAS_FAST_MULTIPLIER + select ARCH_HAS_FG_KASLR if X86_64 && RANDOMIZE_BASE select ARCH_HAS_FILTER_PGPROT select ARCH_HAS_FORTIFY_SOURCE select ARCH_HAS_GCOV_PROFILE_ALL