From patchwork Fri Feb 4 04:19:46 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ilya Leoshkevich X-Patchwork-Id: 12734770 X-Patchwork-Delegate: bpf@iogearbox.net 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 E7025C433FE for ; Fri, 4 Feb 2022 04:20:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242842AbiBDEUd (ORCPT ); Thu, 3 Feb 2022 23:20:33 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:62282 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S232223AbiBDEU3 (ORCPT ); Thu, 3 Feb 2022 23:20:29 -0500 Received: from pps.filterd (m0098414.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 21441eE9028363; Fri, 4 Feb 2022 04:20:07 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=pp1; bh=Ja3OC2q3TDApsQm4GnQZqFA0Yp1B1OYhdYj+AGkaqKY=; b=KcGJwmiTd6i42o+w0wxSESZ+1y79QgmTiJV0ABLTn0qYQaiTZwWDyVny1K9HcBeVWclf E0pfrowaWqGaOCo5jDOL4slHx2+sZyMEQCIxZgej/oXs8BPol4Ei9WLM3RJwA/cPHy3T aQ65sxh3oS8/rAbWy9jWUJFVollonrWDiKLnKRXzgzFNAyhKU1fqk/FQq/CcBTP3lFBo EikDkwsDLClIcqT95BotkKC+5e23aQREBoU/A8uc/Xd6M22gyeB+MXEH3Xx5/sqc+3j2 HVHwjj7K1bcPhXa24kKzq/dk0ejkf5/wAJNXWeeJhsy+DT0Tr9EpXgHmDZPpP+JFAPMV 6A== Received: from pps.reinject (localhost [127.0.0.1]) by mx0b-001b2d01.pphosted.com with ESMTP id 3e0vrrg8v8-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 04 Feb 2022 04:20:06 +0000 Received: from m0098414.ppops.net (m0098414.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.43/8.16.0.43) with SMTP id 2144K6PG029819; Fri, 4 Feb 2022 04:20:06 GMT Received: from ppma03ams.nl.ibm.com (62.31.33a9.ip4.static.sl-reverse.com [169.51.49.98]) by mx0b-001b2d01.pphosted.com with ESMTP id 3e0vrrg8uq-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 04 Feb 2022 04:20:06 +0000 Received: from pps.filterd (ppma03ams.nl.ibm.com [127.0.0.1]) by ppma03ams.nl.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 2144DbAN019588; Fri, 4 Feb 2022 04:20:04 GMT Received: from b06avi18626390.portsmouth.uk.ibm.com (b06avi18626390.portsmouth.uk.ibm.com [9.149.26.192]) by ppma03ams.nl.ibm.com with ESMTP id 3e0r0sh58t-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 04 Feb 2022 04:20:04 +0000 Received: from d06av23.portsmouth.uk.ibm.com (d06av23.portsmouth.uk.ibm.com [9.149.105.59]) by b06avi18626390.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 2144A4tc45875546 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 4 Feb 2022 04:10:04 GMT Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E92F0A4055; Fri, 4 Feb 2022 04:19:58 +0000 (GMT) Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 54FDCA4040; Fri, 4 Feb 2022 04:19:58 +0000 (GMT) Received: from heavy.lan (unknown [9.171.78.41]) by d06av23.portsmouth.uk.ibm.com (Postfix) with ESMTP; Fri, 4 Feb 2022 04:19:58 +0000 (GMT) From: Ilya Leoshkevich To: Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Heiko Carstens , Vasily Gorbik , Christian Borntraeger , Alexander Gordeev , Catalin Marinas , Michael Ellerman , Paul Walmsley Cc: bpf@vger.kernel.org, Ilya Leoshkevich Subject: [PATCH bpf-next v2 01/10] arm64/bpf: Add orig_x0 to user_pt_regs Date: Fri, 4 Feb 2022 05:19:46 +0100 Message-Id: <20220204041955.1958263-2-iii@linux.ibm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220204041955.1958263-1-iii@linux.ibm.com> References: <20220204041955.1958263-1-iii@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: ldkQRlB6T9oa2nRS7LE-PDHro68mSAzx X-Proofpoint-ORIG-GUID: Qcp83zqBMww_JgmFTRc5DCIRNFCy2lML X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.816,Hydra:6.0.425,FMLib:17.11.62.513 definitions=2022-02-04_01,2022-02-03_01,2021-12-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 spamscore=0 mlxlogscore=978 priorityscore=1501 phishscore=0 suspectscore=0 impostorscore=0 bulkscore=0 clxscore=1015 malwarescore=0 adultscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2201110000 definitions=main-2202040019 Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net orig_x0 is needed in order to access the first syscall argument from eBPF programs. Signed-off-by: Ilya Leoshkevich --- arch/arm64/include/asm/ptrace.h | 2 +- arch/arm64/include/uapi/asm/ptrace.h | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm64/include/asm/ptrace.h b/arch/arm64/include/asm/ptrace.h index 41b332c054ab..1be22f7870f8 100644 --- a/arch/arm64/include/asm/ptrace.h +++ b/arch/arm64/include/asm/ptrace.h @@ -183,9 +183,9 @@ struct pt_regs { u64 sp; u64 pc; u64 pstate; + u64 orig_x0; }; }; - u64 orig_x0; #ifdef __AARCH64EB__ u32 unused2; s32 syscallno; diff --git a/arch/arm64/include/uapi/asm/ptrace.h b/arch/arm64/include/uapi/asm/ptrace.h index 758ae984ff97..3c118c5b0893 100644 --- a/arch/arm64/include/uapi/asm/ptrace.h +++ b/arch/arm64/include/uapi/asm/ptrace.h @@ -90,6 +90,7 @@ struct user_pt_regs { __u64 sp; __u64 pc; __u64 pstate; + __u64 orig_x0; }; struct user_fpsimd_state {