From patchwork Tue Mar 23 20:39:46 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sami Tolvanen X-Patchwork-Id: 12159281 X-Patchwork-Delegate: kuba@kernel.org 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, 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 487BEC43617 for ; Tue, 23 Mar 2021 20:41:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 32D8A619CB for ; Tue, 23 Mar 2021 20:41:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233574AbhCWUkq (ORCPT ); Tue, 23 Mar 2021 16:40:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45098 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233582AbhCWUkX (ORCPT ); Tue, 23 Mar 2021 16:40:23 -0400 Received: from mail-qv1-xf49.google.com (mail-qv1-xf49.google.com [IPv6:2607:f8b0:4864:20::f49]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 56477C0613E8 for ; Tue, 23 Mar 2021 13:40:21 -0700 (PDT) Received: by mail-qv1-xf49.google.com with SMTP id dz17so8564qvb.14 for ; Tue, 23 Mar 2021 13:40:21 -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=WZ2fsTX5FLJhX01BulIdj9aVU+u+1SaaqVDcWrlk7vo=; b=ec/02RNqMxC3NtjfEqCKWLv4qwmQTmHrkXsCeNO2KBn8qSqKzTE24FKGqfuKH+TVkK X/VKFkbL4vsRYCrPeFIrZP8DeiwqKS96n7WGnqpK5r2/VAz0Iab+2cnLr9ixgbVx3i2+ bJO7ki2MVhZqoAWHQEzmE5B7oTVS3IIOSVMH6lZh48SF/0j7bgW6jHNwPIk8gKuBLJqR 4qQ5N4v6mKVofR2cSUqiTSphpJlczKzRN+vOPaGMsYJ3GFsS6r9eXFPtqA3WSVhoq05F zPIbSYNFmagSwu4VxL+cE8EfslHOGZyTYBOn5X3fzMMM4mw38aQ1r1FrLS9fBfhCQ2tj 1law== 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=e71rwiEZ9iMTsRW0UjZCI9yocHF5YslkqEBMIU8vuWKT4ZAkZQkpsN5JoLaY/DNQjj VqiusoyzFzUyTgiJDQMH8P22uWMUZXkoZzMEu/0mI+Kktuqf9l/CCm1mAlp2AGw9+uEn GM9eK8E/p6e2jX4eipxztN1zrF7cawC+8uRCw/OITS3HlkizIBd9do2JNgKvQKxbwjrv LPSuLEqcGcZzdhQy8jj268R6oO1kReRCY/yWZ59B+M9Tt1dBhIhQShsA/6wLHoriYNbU 38+QTIpKbxss2ehkxmIseHvMJ9eSNAk3BSp42oeqs1CdtMMhE+MQaWjowJ3wSCvUMcPD m1UA== X-Gm-Message-State: AOAM533SGVADKlVXii3ULqhOZw3GI2nDOB20sMNc6KUV07rshHwYDihk s/i7g7mJGFGVspF3/TQPDwetqvPOpwercDRD6/k= X-Google-Smtp-Source: ABdhPJyxpPvs3kGL5X0rhxaceHJDwoHelX5/WOAlmnNB1fMlzzx1j3iwVr8PFhB1zHKJQ3nkMRVGiRyWH5xdyb6dFU8= X-Received: from samitolvanen1.mtv.corp.google.com ([2620:15c:201:2:e9a3:260d:763b:67dc]) (user=samitolvanen job=sendgmr) by 2002:a0c:bec3:: with SMTP id f3mr6577376qvj.49.1616532020445; Tue, 23 Mar 2021 13:40:20 -0700 (PDT) Date: Tue, 23 Mar 2021 13:39:46 -0700 In-Reply-To: <20210323203946.2159693-1-samitolvanen@google.com> Message-Id: <20210323203946.2159693-18-samitolvanen@google.com> Mime-Version: 1.0 References: <20210323203946.2159693-1-samitolvanen@google.com> X-Mailer: git-send-email 2.31.0.291.g576ba9dcdaf-goog Subject: [PATCH v3 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 , Peter Zijlstra , 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