From patchwork Sat Aug 31 04:19:30 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pu Lehui X-Patchwork-Id: 13785925 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id DA375CD1293 for ; Sat, 31 Aug 2024 04:17:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=OdceXCJ3h8vgLOmW5looJN8aSSkynDl4k2SETFdVmYU=; b=Sq9Sikx6WbfSfx EnFnxZXzS1kOxElwIfcpXCobBDem+P7lrs0l7V6B6EzbJniUzyJSE3Nl8tnzcJ8gfqPB7AdYESA+P ZPeYFbCZds0NB635cwdjVDP9tNvoZrJRKwvjWTJYrm7AUKKbrxkc5xBqZqdf2D8F4jFxBs1I0OIiV Ig9VwxDTYTGIthjGYjrvMuW9FblCEGpywQRgL1Menay8fkHPBZTYZEuD7g+2WSrMZG4Q01qWuCSiA Ts9ze6tfQMINVAGfHwFqgcVECgNdN7SLGqF0+q3kbhD+6YU5BmiLAR99zo4EGe3RDbQLz/vaKdd08 +IsLIs3+94KJrJDPk05w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1skFXq-00000008UoT-3tMt; Sat, 31 Aug 2024 04:17:02 +0000 Received: from dggsgout11.his.huawei.com ([45.249.212.51]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1skFXm-00000008UmL-3qtd for linux-riscv@lists.infradead.org; Sat, 31 Aug 2024 04:17:01 +0000 Received: from mail.maildlp.com (unknown [172.19.163.216]) by dggsgout11.his.huawei.com (SkyGuard) with ESMTP id 4WwhY64pKPz4f3jkJ for ; Sat, 31 Aug 2024 12:16:42 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.75]) by mail.maildlp.com (Postfix) with ESMTP id BF8561A14EE for ; Sat, 31 Aug 2024 12:16:52 +0800 (CST) Received: from ultra.huawei.com (unknown [10.90.53.71]) by APP2 (Coremail) with SMTP id Syh0CgBnT74ymdJmoSHHDA--.65422S2; Sat, 31 Aug 2024 12:16:51 +0800 (CST) From: Pu Lehui To: bpf@vger.kernel.org, linux-riscv@lists.infradead.org, netdev@vger.kernel.org, Andrii Nakryiko Cc: =?utf-8?b?QmrDtnJuIFTDtnBlbA==?= , Ilya Leoshkevich , Alexei Starovoitov , Daniel Borkmann , Martin KaFai Lau , Eduard Zingerman , Song Liu , Yonghong Song , John Fastabend , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa , Puranjay Mohan , Palmer Dabbelt , Pu Lehui Subject: [PATCH bpf-next v3 0/4] Fix accessing first syscall argument on RV64 Date: Sat, 31 Aug 2024 04:19:30 +0000 Message-Id: <20240831041934.1629216-1-pulehui@huaweicloud.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-CM-TRANSID: Syh0CgBnT74ymdJmoSHHDA--.65422S2 X-Coremail-Antispam: 1UD129KBjvdXoWrKr1xAr4xGry8Wr4DWr1UGFg_yoWkZrcEkw 42yr93JrWrCrZxtF4fWr15CrWDK3yUJF18GF4DtrWfCw1xAr97XFsY9r90yas8Wa10gFZx Ga9rX34FvrnIvjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbIxYFVCjjxCrM7AC8VAFwI0_Xr0_Wr1l1xkIjI8I6I8E6xAIw20E Y4v20xvaj40_Wr0E3s1l1IIY67AEw4v_Jr0_Jr4l8cAvFVAK0II2c7xJM28CjxkF64kEwV A0rcxSw2x7M28EF7xvwVC0I7IYx2IY67AKxVW5JVW7JwA2z4x0Y4vE2Ix0cI8IcVCY1x02 67AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVAFwI0_GcCE3s1l84ACjcxK6I8E87Iv6xkF7I 0E14v26rxl6s0DM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40E x7xfMcIj6xIIjxv20xvE14v26r1j6r18McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x 0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64vIr41lFIxGxcIEc7CjxVA2Y2ka0xkIwI1lc7CjxVAa w2AFwI0_GFv_Wryl42xK82IYc2Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxV Aqx4xG67AKxVWUJVWUGwC20s026x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r4a 6rW5MIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAIcVC0I7IYx2IY6x kF7I0E14v26r4j6F4UMIIF0xvE42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AK xVW8JVWxJwCI42IY6I8E87Iv6xkF7I0E14v26r4UJVWxJrUvcSsGvfC2KfnxnUUI43ZEXa 7IU0s2-5UUUUU== X-CM-SenderInfo: psxovxtxl6x35dzhxuhorxvhhfrp/ X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240830_211659_237513_93409DC3 X-CRM114-Status: UNSURE ( 4.31 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On RV64, as Ilya mentioned before [0], the first syscall parameter should be accessed through orig_a0 (see arch/riscv64/include/asm/syscall.h), otherwise it will cause selftests like bpf_syscall_macro, vmlinux, test_lsm, etc. to fail on RV64. Link: https://lore.kernel.org/bpf/20220209021745.2215452-1-iii@linux.ibm.com [0] v3: - Fix test case error. v2: https://lore.kernel.org/all/20240831023646.1558629-1-pulehui@huaweicloud.com/ - Access first syscall argument with CO-RE direct read. (Andrii) v1: https://lore.kernel.org/all/20240829133453.882259-1-pulehui@huaweicloud.com/ Pu Lehui (4): libbpf: Access first syscall argument with CO-RE direct read on s390 libbpf: Access first syscall argument with CO-RE direct read on arm64 selftests/bpf: Enable test_bpf_syscall_macro:syscall_arg1 on s390 and arm64 libbpf: Fix accessing first syscall argument on RV64 tools/lib/bpf/bpf_tracing.h | 17 ++++++++++++----- .../bpf/prog_tests/test_bpf_syscall_macro.c | 4 ---- .../selftests/bpf/progs/bpf_syscall_macro.c | 2 -- 3 files changed, 12 insertions(+), 11 deletions(-)