From patchwork Sat Aug 31 02:36:42 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pu Lehui X-Patchwork-Id: 13785907 Received: from dggsgout11.his.huawei.com (dggsgout11.his.huawei.com [45.249.212.51]) (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 2B36A19BB7; Sat, 31 Aug 2024 02:34:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.51 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725071653; cv=none; b=nVxUt4WELhU3BWGVILhb1CX4IoTEKAywbmxaBIZ0sCE62/ooEnwE/k/8FmASrthvT4zQUuWu1IJlAW/lB0VLWXneyctn6Cz5YE2hR9LpeZysUHOLOd8QSH9qmZFm+9/4nSNHru+LfXP4E7n01gXFWQ5S1XMCXj44owtLAHZjC+Y= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725071653; c=relaxed/simple; bh=UzmZp+a1cD8er+lfvb2uO3JfKl8PCAAouc5Ue+LLMz8=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=a43BPMdZg10EJQUnZU43gQV514AhHso85wPI/yFyWStAKW3ziNk7ULmr9K8sgxHduTjZuQUhzCRSvmq695/eICAANZsifmiiED27ZTKpW+2CxJg/q10wc2K3prBlzxhJnBRivM9hrzIjZiKH2Jq2/6NdCpuaAHVZtZzgfVVMl8g= 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=45.249.212.51 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 dggsgout11.his.huawei.com (SkyGuard) with ESMTP id 4WwfGS2Yjvz4f3kw5; Sat, 31 Aug 2024 10:33:52 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.128]) by mail.maildlp.com (Postfix) with ESMTP id F22CE1A1464; Sat, 31 Aug 2024 10:34:07 +0800 (CST) Received: from ultra.huawei.com (unknown [10.90.53.71]) by APP4 (Coremail) with SMTP id gCh0CgDXSYAagdJmoPLJDA--.24950S2; Sat, 31 Aug 2024 10:34:03 +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 v2 0/4] Fix accessing first syscall argument on RV64 Date: Sat, 31 Aug 2024 02:36:42 +0000 Message-Id: <20240831023646.1558629-1-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: gCh0CgDXSYAagdJmoPLJDA--.24950S2 X-Coremail-Antispam: 1UD129KBjvdXoWrKr1xAr4xGry8Wr4DWr1UGFg_yoW3uwbE9w 40yr97JrWrCrZxtF43Wr15CrWDKa1UJr1UWF4kJrWfJw45CryDJFsY93s0yas8Xa1IgFy3 Ca9rXrySvFnxXjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbxAYFVCjjxCrM7AC8VAFwI0_Xr0_Wr1l1xkIjI8I6I8E6xAIw20E Y4v20xvaj40_Wr0E3s1l1IIY67AEw4v_Jr0_Jr4l8cAvFVAK0II2c7xJM28CjxkF64kEwV A0rcxSw2x7M28EF7xvwVC0I7IYx2IY67AKxVW5JVW7JwA2z4x0Y4vE2Ix0cI8IcVCY1x02 67AKxVWxJVW8Jr1l84ACjcxK6I8E87Iv67AKxVW0oVCq3wA2z4x0Y4vEx4A2jsIEc7CjxV AFwI0_GcCE3s1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2 j2WlYx0E2Ix0cI8IcVAFwI0_Jr0_Jr4lYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE7x kEbVWUJVW8JwACjcxG0xvY0x0EwIxGrwACI402YVCY1x02628vn2kIc2xKxwCY1x0262kK e7AKxVW8ZVWrXwCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c 02F40E14v26r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_GFv_ WrylIxkGc2Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7 CjxVAFwI0_Gr0_Cr1lIxAIcVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v2 6r1j6r4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x07 jIksgUUUUU= 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 (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 ---- 2 files changed, 12 insertions(+), 9 deletions(-)