From patchwork Thu Aug 29 13:32:50 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pu Lehui X-Patchwork-Id: 13783265 Received: from dggsgout12.his.huawei.com (dggsgout12.his.huawei.com [45.249.212.56]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 267231AD9CD; Thu, 29 Aug 2024 13:30:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.56 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724938220; cv=none; b=LP7y91X7CvTHz4LEIW0IHCt6p/PEel68cHY8RCPU+lfmyc1JRmQAP2++GjeWDJaBRkuGAG+GN2NB4EPe6pTAnXxUrOF03kEnW5e3tsfOTWhmUSFPq6KFa8CqZVGFLxBgOn/qgn83QQE1SMHSda+tKUod/57a8CMPFdg9Ts4tkZU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724938220; c=relaxed/simple; bh=pt8DeVgzhEoqMDw3Dq1NJzRLClJjn1gCLMW96uOriy8=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=d518UTe8XFeXwd+nCVddnpkg56CBM92akXldymkVKwCssm6Vi3DGH82O7SEWua3OrZ6JQIGTyMNoL709XTtF4+/Vt9YmdRLLPMefBTB4FwInbiK3eroDX819pRa6ucYKpUx6nPoB/8hChXceI7/nokMqmKXF5WFBuEKI2aIpx20= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com; spf=pass smtp.mailfrom=huaweicloud.com; arc=none smtp.client-ip=45.249.212.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huaweicloud.com Received: from mail.maildlp.com (unknown [172.19.163.216]) by dggsgout12.his.huawei.com (SkyGuard) with ESMTP id 4WvhwS1ZBNz4f3jXw; Thu, 29 Aug 2024 21:30:00 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.112]) by mail.maildlp.com (Postfix) with ESMTP id D6D921A1673; Thu, 29 Aug 2024 21:30:14 +0800 (CST) Received: from ultra.huawei.com (unknown [10.90.53.71]) by APP1 (Coremail) with SMTP id cCh0CgDHHE_jd9Bm48_bCw--.51956S2; Thu, 29 Aug 2024 21:30:12 +0800 (CST) From: Pu Lehui To: bpf@vger.kernel.org, linux-riscv@lists.infradead.org, netdev@vger.kernel.org Cc: =?utf-8?b?QmrDtnJuIFTDtnBlbA==?= , Ilya Leoshkevich , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , 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 0/2] Fix accessing first syscall argument on RV64 Date: Thu, 29 Aug 2024 13:32:50 +0000 Message-Id: <20240829133253.882133-1-pulehui@huaweicloud.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: cCh0CgDHHE_jd9Bm48_bCw--.51956S2 X-Coremail-Antispam: 1UD129KBjvdXoWrKr1xAr4xGry8Wr4DWr1UGFg_yoW3GrgE9w 48ur97Ars5ur98tF15Wr15CrZFkw45Wr15Wr4DJrW3tr1DArs8JFsYk34UJasxWF4rWayf Ca9rX34fAr1avjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbxkYFVCjjxCrM7AC8VAFwI0_Xr0_Wr1l1xkIjI8I6I8E6xAIw20E Y4v20xvaj40_Wr0E3s1l1IIY67AEw4v_Jr0_Jr4l8cAvFVAK0II2c7xJM28CjxkF64kEwV A0rcxSw2x7M28EF7xvwVC0I7IYx2IY67AKxVW5JVW7JwA2z4x0Y4vE2Ix0cI8IcVCY1x02 67AKxVW8JVWxJwA2z4x0Y4vEx4A2jsIE14v26rxl6s0DM28EF7xvwVC2z280aVCY1x0267 AKxVW0oVCq3wAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80 ewAv7VC0I7IYx2IY67AKxVWUJVWUGwAv7VC2z280aVAFwI0_Jr0_Gr1lOx8S6xCaFVCjc4 AY6r1j6r4UM4x0Y48IcxkI7VAKI48JM4IIrI8v6xkF7I0E8cxan2IY04v7MxkF7I0En4kS 14v26r4a6rW5MxAIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E5I 8CrVAFwI0_Jr0_Jr4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVW8ZVWr XwCIc40Y0x0EwIxGrwCI42IY6xIIjxv20xvE14v26r1j6r1xMIIF0xvE2Ix0cI8IcVCY1x 0267AKxVW8JVWxJwCI42IY6xAIw20EY4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_ Jr0_Gr1lIxAIcVC2z280aVCY1x0267AKxVW8JVW8JrUvcSsGvfC2KfnxnUUI43ZEXa7IU0 s2-5UUUUU== X-CM-SenderInfo: psxovxtxl6x35dzhxuhorxvhhfrp/ X-Patchwork-Delegate: bpf@iogearbox.net 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] Pu Lehui (2): libbpf: Fix accessing first syscall argument on RV64 selftests/bpf: Skip case involving first arg in bpf_syscall_macro on RV64 tools/lib/bpf/bpf_tracing.h | 9 ++++++++- .../selftests/bpf/prog_tests/test_bpf_syscall_macro.c | 2 +- tools/testing/selftests/bpf/progs/bpf_syscall_macro.c | 2 +- 3 files changed, 10 insertions(+), 3 deletions(-)