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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2C1A2CCA480 for ; Fri, 10 Jun 2022 23:36:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350952AbiFJXgS (ORCPT ); Fri, 10 Jun 2022 19:36:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57312 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1350467AbiFJXfl (ORCPT ); Fri, 10 Jun 2022 19:35:41 -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 F23AB28D69F for ; Fri, 10 Jun 2022 16:35:35 -0700 (PDT) Received: by mail-pg1-x54a.google.com with SMTP id d125-20020a636883000000b003db5e24db27so209804pgc.13 for ; Fri, 10 Jun 2022 16:35:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=NcjHS6Suh3OhItEG/2MZtt/0Xj5mN4IWKhqbfh52Rno=; b=B6yAU5GEe4pZv/48yh6WLaI6mEXb6q5ek/xHD3FNdQztYNNt1boCQdLPa1Eoj+bFb0 IcRpSoqgwJeACNDoRbvXik97hjTOzyv6MAX9mnUDXEqkFElRkH/mbVQthzGmVv0VoW5V shtnOK+4rpBrCbU/1qxNlqiQ4avMTDXPZlIVe27ivwDSoSZ5/Z5JaL0bIVD4AVFn2s1p sZG06EBIRR6jFQ7sHdn7SkltPOKCP9uyEidLrsiFZ+405A0pylIsgI5jzXJ1cCfkTtq8 CxkV/5qTOb+qnKBdhYYE1CE2cmC7lI7sRQut6bHug9ResZugpE1Kql3uyWJJqVhYd605 sRlA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=NcjHS6Suh3OhItEG/2MZtt/0Xj5mN4IWKhqbfh52Rno=; b=titXRC6U3FzUzdAE/cFzMSDjhPSnMoJ7d7h4bCxYIU/F5r5Dw0xJdxzf/6e4GLfoDA zN9HzBEUt4/XE/BctlgudlHOc9eDycLKFa0otlwGahXB5UIKbpnxGu0Kt/eHEPakFfXW G2IXdz5jencQIr4qDZJTflikOmSAW/6oZhy0P1zZCRJD3/7WrZ5diVwybUJ+cyryfd4V LscYWV0JcOVnkW3D08oOOZRWRp8o9BOgJBIhaBsX/yk10qIVTbYiTgxm5CqmcoFmLdkL 0Fc/TNAeVNg/LwqC/hk79T6SY/ZtfqNxuDeMgHM5FSuoK31qhrom5+Vi+c3BXOhCWd1+ ISlg== X-Gm-Message-State: AOAM531LSSwxFyxyJ0tkDHwjem3rm7XI+8OqAVfQQtyK1JCcjvBrBMKx PFfZyFrhLr9WsOZUwstqsConyT2DPOtS363aGDs+Z4gLtq0gpa2syb1HnsJ0IFve9wg2GvNwD5F JqZANp70pl4olooLXYvAGg03zqTLkd/FfyDIg8wi2jy9EpfdqXtmMSEmk2CP/NiLYLxKB9PJvlV QmkTv3boUu8A== X-Google-Smtp-Source: ABdhPJxw7oIAK8hGCeVcNE80HM7NhVBaTN+eR2hseQO0/X0b/4Yf1tGUnNUottQiVCVizuJeiQD04X+aq1KSVb7CZow= X-Received: from samitolvanen1.mtv.corp.google.com ([2620:15c:201:2:f464:6db6:3d47:ed14]) (user=samitolvanen job=sendgmr) by 2002:a05:6a00:1a01:b0:51c:d4f:c2a7 with SMTP id g1-20020a056a001a0100b0051c0d4fc2a7mr31838209pfv.45.1654904134785; Fri, 10 Jun 2022 16:35:34 -0700 (PDT) Date: Fri, 10 Jun 2022 16:35:01 -0700 In-Reply-To: <20220610233513.1798771-1-samitolvanen@google.com> Message-Id: <20220610233513.1798771-9-samitolvanen@google.com> Mime-Version: 1.0 References: <20220610233513.1798771-1-samitolvanen@google.com> X-Developer-Key: i=samitolvanen@google.com; a=openpgp; fpr=35CCFB63B283D6D3AEB783944CB5F6848BBC56EE X-Developer-Signature: v=1; a=openpgp-sha256; l=3850; h=from:subject; bh=5ZgbGJz2ZEVaG6LF/2peYBgvNX5g5T9rQB8ZfRmBxaI=; b=owEB7QES/pANAwAKAUy19oSLvFbuAcsmYgBio9Ut3swgrYqngHqwtC1wp3RKCDV4QKgDfNVLYTiJ 6dF63+OJAbMEAAEKAB0WIQQ1zPtjsoPW0663g5RMtfaEi7xW7gUCYqPVLQAKCRBMtfaEi7xW7qYDC/ 4uoZDVEdEW9ia3dPSZOELy1obJP3wjydRD7Jb2lRl1j9YRC2vDbdRegiY/dAhKBUZJIhMFxhi7Ucda KBRlntq1sn5muM0HQLQW+2VQgGVUy6eswi1cnBJhF5weOCA5Yq8JqmkzpXMwmDQ15lHhdhWygirOmo YoyTdzn+9slce2r9w2kr8H7tKHOPpmByY8iM3OzE+cVOW9MTkuNi95Nzrccd8sFj2MDWuqGOfStQVv Rucb8+Vw6DbdPiJsNzUi4iTPWKMGooEKDKoO40U7zAARl068qUIzJNawJ2xy4ljp+UtBszmuNETnQD T0ouk5BQa4iYf7b1d4cbdz19cbiD6tkWIB8qleILbqaLLwWo/Qy2osauXT85QiQLludzGxtOVgotdy WF/4UkWdBS756ZuBpa1lLxpYbC2IVBSAtVs0C8isRpIIUnIl6TuTi4N4f0HRZbiuuluaWnw9wFxsqA iUejEfd5Gi6gRpLlSxdqzBG0a1c1VsXlwbq5mZ1fkSado= X-Mailer: git-send-email 2.36.1.476.g0c4daa206d-goog Subject: [RFC PATCH v3 08/20] arm64: Add types to indirect called assembly functions From: Sami Tolvanen To: linux-kernel@vger.kernel.org Cc: Kees Cook , Josh Poimboeuf , Peter Zijlstra , x86@kernel.org, Catalin Marinas , Will Deacon , Mark Rutland , Nathan Chancellor , Nick Desaulniers , Joao Moreira , Sedat Dilek , Steven Rostedt , linux-hardening@vger.kernel.org, linux-arm-kernel@lists.infradead.org, llvm@lists.linux.dev, Sami Tolvanen Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org With CONFIG_CFI_CLANG, assembly functions indirectly called from C code must be annotated with type identifiers to pass CFI checking. Use SYM_TYPED_FUNC_START for the indirectly called functions. Signed-off-by: Sami Tolvanen Reviewed-by: Kees Cook --- arch/arm64/crypto/ghash-ce-core.S | 5 +++-- arch/arm64/crypto/sm3-ce-core.S | 3 ++- arch/arm64/kernel/cpu-reset.S | 5 +++-- arch/arm64/mm/proc.S | 5 +++-- 4 files changed, 11 insertions(+), 7 deletions(-) diff --git a/arch/arm64/crypto/ghash-ce-core.S b/arch/arm64/crypto/ghash-ce-core.S index 7868330dd54e..ebe5558929b7 100644 --- a/arch/arm64/crypto/ghash-ce-core.S +++ b/arch/arm64/crypto/ghash-ce-core.S @@ -6,6 +6,7 @@ */ #include +#include #include SHASH .req v0 @@ -350,11 +351,11 @@ CPU_LE( rev64 T1.16b, T1.16b ) * void pmull_ghash_update(int blocks, u64 dg[], const char *src, * struct ghash_key const *k, const char *head) */ -SYM_FUNC_START(pmull_ghash_update_p64) +SYM_TYPED_FUNC_START(pmull_ghash_update_p64) __pmull_ghash p64 SYM_FUNC_END(pmull_ghash_update_p64) -SYM_FUNC_START(pmull_ghash_update_p8) +SYM_TYPED_FUNC_START(pmull_ghash_update_p8) __pmull_ghash p8 SYM_FUNC_END(pmull_ghash_update_p8) diff --git a/arch/arm64/crypto/sm3-ce-core.S b/arch/arm64/crypto/sm3-ce-core.S index ef97d3187cb7..ca70cfacd0d0 100644 --- a/arch/arm64/crypto/sm3-ce-core.S +++ b/arch/arm64/crypto/sm3-ce-core.S @@ -6,6 +6,7 @@ */ #include +#include #include .irp b, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 @@ -73,7 +74,7 @@ * int blocks) */ .text -SYM_FUNC_START(sm3_ce_transform) +SYM_TYPED_FUNC_START(sm3_ce_transform) /* load state */ ld1 {v8.4s-v9.4s}, [x0] rev64 v8.4s, v8.4s diff --git a/arch/arm64/kernel/cpu-reset.S b/arch/arm64/kernel/cpu-reset.S index 48a8af97faa9..6b752fe89745 100644 --- a/arch/arm64/kernel/cpu-reset.S +++ b/arch/arm64/kernel/cpu-reset.S @@ -8,6 +8,7 @@ */ #include +#include #include #include #include @@ -28,7 +29,7 @@ * branch to what would be the reset vector. It must be executed with the * flat identity mapping. */ -SYM_CODE_START(cpu_soft_restart) +SYM_TYPED_FUNC_START(cpu_soft_restart) mov_q x12, INIT_SCTLR_EL1_MMU_OFF pre_disable_mmu_workaround /* @@ -47,6 +48,6 @@ SYM_CODE_START(cpu_soft_restart) mov x1, x3 // arg1 mov x2, x4 // arg2 br x8 -SYM_CODE_END(cpu_soft_restart) +SYM_FUNC_END(cpu_soft_restart) .popsection diff --git a/arch/arm64/mm/proc.S b/arch/arm64/mm/proc.S index 50bbed947bec..dfa715315551 100644 --- a/arch/arm64/mm/proc.S +++ b/arch/arm64/mm/proc.S @@ -10,6 +10,7 @@ #include #include #include +#include #include #include #include @@ -184,7 +185,7 @@ SYM_FUNC_END(cpu_do_resume) * This is the low-level counterpart to cpu_replace_ttbr1, and should not be * called by anything else. It can only be executed from a TTBR0 mapping. */ -SYM_FUNC_START(idmap_cpu_replace_ttbr1) +SYM_TYPED_FUNC_START(idmap_cpu_replace_ttbr1) save_and_disable_daif flags=x2 __idmap_cpu_set_reserved_ttbr1 x1, x3 @@ -224,7 +225,7 @@ SYM_FUNC_END(idmap_cpu_replace_ttbr1) */ __idmap_kpti_flag: .long 1 -SYM_FUNC_START(idmap_kpti_install_ng_mappings) +SYM_TYPED_FUNC_START(idmap_kpti_install_ng_mappings) cpu .req w0 num_cpus .req w1 swapper_pa .req x2 -- 2.36.1.476.g0c4daa206d-goog