From patchwork Thu Mar 18 17:11:11 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sami Tolvanen X-Patchwork-Id: 12148835 X-Patchwork-Delegate: bpf@iogearbox.net 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=-26.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=unavailable 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 8135AC41621 for ; Thu, 18 Mar 2021 17:12:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6D5C864F6B for ; Thu, 18 Mar 2021 17:12:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232546AbhCRRMU (ORCPT ); Thu, 18 Mar 2021 13:12:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33440 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232460AbhCRRLw (ORCPT ); Thu, 18 Mar 2021 13:11:52 -0400 Received: from mail-pg1-x54a.google.com (mail-pg1-x54a.google.com [IPv6:2607:f8b0:4864:20::54a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6765AC061762 for ; Thu, 18 Mar 2021 10:11:52 -0700 (PDT) Received: by mail-pg1-x54a.google.com with SMTP id m5so23003462pgu.21 for ; Thu, 18 Mar 2021 10:11:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=WZ2fsTX5FLJhX01BulIdj9aVU+u+1SaaqVDcWrlk7vo=; b=p/MDs2PDjsFiD6r2Ts6jM6BFyv2fovLwrbhh8l+TmOVc+XN/ujL2rtlnXKiP30RH8t S6UgRxg5+yaZATMiFP0V7CZXbXRNJuWO2POyPyc/+mNIGwUkdBn8lGC2KIC6cz2hh6sv CJDbF1wva6NSYjwFp6yOZ5B/8Wi6p/+1TbqSDvFzeJTm5qNOjQDlJzu+az351Kb6k01L 8H9aN9DLPhNUJmU3pg9aSJhzVGaGFQW4kJ4pkEcD6+oA15BQDjpnmOHp8Myq3XE58psG csbaakT5tvQ7HUsKigBvtgqMzAnRmEwTfvnkEOj9XxC1ys8T6tR9JZXH1i/okjccLokC xvsg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=WZ2fsTX5FLJhX01BulIdj9aVU+u+1SaaqVDcWrlk7vo=; b=NPiOmnYFvWOym2904wGUHgxkaBacc/g2+fFgL3omFrG0CyYEY9Vo5fIsD0fX+iC4vP /M08ooPefeIllBTSIk8xGOT8Q5HUsRw9G/hmvgeZdjvn4J0Vql4SLhkW0FQ20/HzNbMu Ih4MSM95IrmEcR3/KaZ5s+ybEjg0zP1RDPdFhQXwmBqLuaFoHdAStY0VTl98XIBIbYdJ 4trC8wvjJqVA/V8U7/1laCh26vPS32L55Jj4XvgvFIswKu9GC+qzOg19xdTr+/wRrvCq IV6sa1E6Pu4D1+bSR8PMbG15sOshUaxuwKS605sMEPkoCXyZsm1kvxd+Sa/IoI9UyMNo PFKw== X-Gm-Message-State: AOAM533f7ukkiS2QrH6gwkoJLzC5+96RdEkh9crfIBfaS4k1y449e0cQ gJiNk+mfRrBfJNLhz1u1k/V/uIjbCZ5lZpDI/BQ= X-Google-Smtp-Source: ABdhPJwVhIeJ7eN/c102kC0C0PDipbzyJDdK32hnyHrtAGB4zJkWiAPX1yDL/oR7lqAn8+vlGW94yr5eZySyWBFd8bM= X-Received: from samitolvanen1.mtv.corp.google.com ([2620:15c:201:2:c0d7:a7ba:fb41:a35a]) (user=samitolvanen job=sendgmr) by 2002:a17:902:aa8a:b029:e6:64bd:e29d with SMTP id d10-20020a170902aa8ab02900e664bde29dmr10716922plr.24.1616087511958; Thu, 18 Mar 2021 10:11:51 -0700 (PDT) Date: Thu, 18 Mar 2021 10:11:11 -0700 In-Reply-To: <20210318171111.706303-1-samitolvanen@google.com> Message-Id: <20210318171111.706303-18-samitolvanen@google.com> Mime-Version: 1.0 References: <20210318171111.706303-1-samitolvanen@google.com> X-Mailer: git-send-email 2.31.0.291.g576ba9dcdaf-goog Subject: [PATCH v2 17/17] arm64: allow CONFIG_CFI_CLANG to be selected From: Sami Tolvanen To: Kees Cook Cc: Nathan Chancellor , Nick Desaulniers , Masahiro Yamada , Will Deacon , Jessica Yu , Arnd Bergmann , Tejun Heo , "Paul E. McKenney" , Christoph Hellwig , bpf@vger.kernel.org, linux-hardening@vger.kernel.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kbuild@vger.kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Sami Tolvanen Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org Select ARCH_SUPPORTS_CFI_CLANG to allow CFI to be enabled. Signed-off-by: Sami Tolvanen Reviewed-by: Kees Cook --- arch/arm64/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 5656e7aacd69..2eefdbc3e3c9 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -75,6 +75,7 @@ config ARM64 select ARCH_SUPPORTS_SHADOW_CALL_STACK if CC_HAVE_SHADOW_CALL_STACK select ARCH_SUPPORTS_LTO_CLANG if CPU_LITTLE_ENDIAN select ARCH_SUPPORTS_LTO_CLANG_THIN + select ARCH_SUPPORTS_CFI_CLANG select ARCH_SUPPORTS_ATOMIC_RMW select ARCH_SUPPORTS_INT128 if CC_HAS_INT128 && (GCC_VERSION >= 50000 || CC_IS_CLANG) select ARCH_SUPPORTS_NUMA_BALANCING