From patchwork Thu Apr 8 18:28:43 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sami Tolvanen X-Patchwork-Id: 12192261 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=-16.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_ADSP_CUSTOM_MED,DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 680ACC433ED for ; Thu, 8 Apr 2021 18:36:13 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CB938610CB for ; Thu, 8 Apr 2021 18:36:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CB938610CB Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:Cc:To:From:Subject:References:Mime-Version: Message-Id:In-Reply-To:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=7NNLa+fFun6MQy9QdM9ZZ7J8ogYKjAqPY58feLsOpEM=; b=Vei/rwi3dJzgYl tmULnkHa+O9VVEWMX9NGmjlmJuzuDJiUsR6PpUYhoL15YE4l/X8mgOiXBkEUqc2tpSgiWq0vV08Bc ouwwRvfJsA1240Bopq42c85rJQJM3ufyKzRq+IfYOtHzb0LgXbh2s8iBMHDyq2nBekkPbNzeVbLF/ avsoAG0NjrNmNn1EAeypaNUc7VQeBxO38Hq9ZAwnvNjdUR3rpACrNLqq00QRgdYB3M+HFpV1DAQKN sF6wojY/Q4sS37JE3lNR0KfAcJ1VrBoJxtGHV8145RQQivdtpKPo4YriMmvF81XSb86Q5CshlrsUa 48JyXxS9hsX5duwL08Ig==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lUZTd-008x3w-Oz; Thu, 08 Apr 2021 18:34:02 +0000 Received: from mail-yb1-xb4a.google.com ([2607:f8b0:4864:20::b4a]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lUZP7-008up2-O5 for linux-arm-kernel@lists.infradead.org; Thu, 08 Apr 2021 18:29:23 +0000 Received: by mail-yb1-xb4a.google.com with SMTP id w9so2895832ybw.7 for ; Thu, 08 Apr 2021 11:29:21 -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=wpJei33p36j3KjjMHxyiKmG4dj3y1cwd0hIxQebiEdM=; b=a3nRPCcLgUjC8+dAsZsjnXIQNP/rwy/DDjL0mVaRLZUSJLKjLCe23/7r3jufcOURP2 YfreigpdbzFmBPynu7ev4x2f9hGuOwXl1gQNFI+p2gMnNBATgfM6aNqo8eWkwib0f/8F EUNhOz40NxYK4iX4IsYefTQK+m8Ly9vO79flGB3PdZreeWclK/3HsvQa2Eu+zlw9dkH7 6qm5k1CF4uhU9Fd39Czmkl971aNRY+2JAKOGLjLe1yvMJopP7gW/T36sDYdpLNjW4pel /nYjwa7lv0PuEkaqdQpGCQ8z4533FqqU8pmp1ExKErObiCmjnfRuj5TuEngXRWPRbWkv GPuA== 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=wpJei33p36j3KjjMHxyiKmG4dj3y1cwd0hIxQebiEdM=; b=bRuu3+eBEBt7hehTj+LJcNyBo95oPPXm3lmX+ahIli3AsIGMyor72vZqtJKsTdQUlu aFpDSyQClfyQRkfSEAbKc8epngT+TPZkJ4nEq0Kz6nbcdTCGKdQHY+D/Wm0Oj1cuiz72 9ZnkTjvNYzya4NB2ZdCCl8bX7sLUaVMj2K0dMHMr8PIyVd16B8IbOtp9SkRbs2XwlRjq h3ZI201oRVl4GURkhPN1fy7cSIHB/bpL/HO0jRZ+bRU1XH+NqDK6BiEl58btngFbIwHI 6lwaatNuoMX94txBh9tmEjhzgOtj/ACoy78Jr5DMIj3JtxtSDbKOK0qNZ35QzCGoAqKB b8wg== X-Gm-Message-State: AOAM531ij+ol3QkZ0FvweDz2wEGXx5U5Q1EaEbX+PMtO7ZLa/27TDAcZ 6SdMDL68jn23wmK9qw2ZOg449uUkwCfwJm2eXsw= X-Google-Smtp-Source: ABdhPJy+nIguXtNRexvJIjrSyuROKE2OJGFq0G34E3vTRN1y9bOJbuovRIfl9/FQBpeHGk7p24GDKVlYncDOiGe0FU8= X-Received: from samitolvanen1.mtv.corp.google.com ([2620:15c:201:2:3560:8505:40a2:e021]) (user=samitolvanen job=sendgmr) by 2002:a25:cf16:: with SMTP id f22mr13542667ybg.342.1617906560306; Thu, 08 Apr 2021 11:29:20 -0700 (PDT) Date: Thu, 8 Apr 2021 11:28:43 -0700 In-Reply-To: <20210408182843.1754385-1-samitolvanen@google.com> Message-Id: <20210408182843.1754385-19-samitolvanen@google.com> Mime-Version: 1.0 References: <20210408182843.1754385-1-samitolvanen@google.com> X-Mailer: git-send-email 2.31.1.295.g9ea45b61b8-goog Subject: [PATCH v6 18/18] 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 , Peter Zijlstra , Sedat Dilek , Mark Rutland , Catalin Marinas , 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, clang-built-linux@googlegroups.com, Sami Tolvanen X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210408_192921_810561_8780F14C X-CRM114-Status: GOOD ( 10.51 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Select ARCH_SUPPORTS_CFI_CLANG to allow CFI to be enabled. Signed-off-by: Sami Tolvanen Reviewed-by: Kees Cook Tested-by: Nathan Chancellor --- arch/arm64/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index e4e1b6550115..d7395772b6b8 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