From patchwork Thu Aug 29 13:34:51 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pu Lehui X-Patchwork-Id: 13783267 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 656D315AD9E; Thu, 29 Aug 2024 13:32:14 +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=1724938335; cv=none; b=NipKyCuMbUujvXlJGyv/h0kBM91271DH9VOE8LZkgDn3i6Q8n5kTy8yESwDdAV8ANns9/1DkhmsLhWDZoRofeqgDp7SHeOewP3n7Bk0teQ15UpIYdobC/k/ed/zlLg02BnyKZknbUtfPviD7R/0p6hnkoxfeoZbMzduMksRXNHw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724938335; c=relaxed/simple; bh=pt8DeVgzhEoqMDw3Dq1NJzRLClJjn1gCLMW96uOriy8=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=LacrYuk+2XjGTksGJz9utS4UoVsOcyjZp3+6fZpuPE07FN5v59DmSx1OlSQBGQdXp0YIfmqHQ/FcWEPhWzzXuMhT7f7nwUIGfDuHDetM0M2XGgckQ58LTWiEKMN0eGPMe6K1sVRPuijwVq6Kd06ObeDOt4kUzh7uNIfDqzPwAjs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com; spf=none 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=none smtp.mailfrom=huaweicloud.com Received: from mail.maildlp.com (unknown [172.19.163.235]) by dggsgout12.his.huawei.com (SkyGuard) with ESMTP id 4Wvhyj0MX2z4f3jcv; Thu, 29 Aug 2024 21:31:57 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.252]) by mail.maildlp.com (Postfix) with ESMTP id B0FC31A06DA; Thu, 29 Aug 2024 21:32:11 +0800 (CST) Received: from ultra.huawei.com (unknown [10.90.53.71]) by APP3 (Coremail) with SMTP id _Ch0CgBXurhbeNBmFVXQCw--.7237S2; Thu, 29 Aug 2024 21:32:11 +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 13:34:51 +0000 Message-Id: <20240829133453.882259-1-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: _Ch0CgBXurhbeNBmFVXQCw--.7237S2 X-Coremail-Antispam: 1UD129KBjvdXoWrKr1xAr4xGry8Wr4DWr1UGFg_yoW3GrgE9w 48ur97Ars5ur98tF15Wr15CrZFkw45Wr15Wr4DJrW3tr1DArs8JFsYk34UJasxWF4rWayf Ca9rX34fAr1avjkaLaAFLSUrUUUUbb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbIxYFVCjjxCrM7AC8VAFwI0_Xr0_Wr1l1xkIjI8I6I8E6xAIw20E Y4v20xvaj40_Wr0E3s1l1IIY67AEw4v_Jr0_Jr4l8cAvFVAK0II2c7xJM28CjxkF64kEwV A0rcxSw2x7M28EF7xvwVC0I7IYx2IY67AKxVW5JVW7JwA2z4x0Y4vE2Ix0cI8IcVCY1x02 67AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVAFwI0_GcCE3s1l84ACjcxK6I8E87Iv6xkF7I 0E14v26rxl6s0DM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40E x7xfMcIj6xIIjxv20xvE14v26r106r15McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x 0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64vIr41lFIxGxcIEc7CjxVA2Y2ka0xkIwI1lc7CjxVAa w2AFwI0_Wrv_ZF1l42xK82IYc2Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxV Aqx4xG67AKxVWUJVWUGwC20s026x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r4a 6rW5MIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAIcVC0I7IYx2IY6x kF7I0E14v26F4j6r4UJwCI42IY6xAIw20EY4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAF wI0_Jr0_Gr1lIxAIcVC2z280aVCY1x0267AKxVW8JVW8JrUvcSsGvfC2KfnxnUUI43ZEXa 7IU0l1v3UUUUU== 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(-)