From patchwork Thu Mar 10 11:25:42 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Janosch Frank X-Patchwork-Id: 12776180 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 3FD65C433EF for ; Thu, 10 Mar 2022 11:29:07 +0000 (UTC) Received: from localhost ([::1]:60320 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nSGyg-000740-3p for qemu-devel@archiver.kernel.org; Thu, 10 Mar 2022 06:29:06 -0500 Received: from eggs.gnu.org ([209.51.188.92]:49904) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nSGw3-0003yw-Kz; Thu, 10 Mar 2022 06:26:23 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:10262) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nSGw1-0007ct-KE; Thu, 10 Mar 2022 06:26:23 -0500 Received: from pps.filterd (m0098396.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 22AAXs2K024300; Thu, 10 Mar 2022 11:26:19 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : content-transfer-encoding : mime-version; s=pp1; bh=URf9PMiC+AukI7D6kiPgAODIiUiW7zKGtVFeuMhhzpo=; b=fZrXDXdBHsPgAecl2uc38qd+ASdLC1G9DkoGwMYbv65P9WydTOzMu4CPUW9mL1hsk8BZ RrT7B8RriM6B8mXqEUAnq0TaHdAnk/ACZGhxE9d+4slORRiYzUY9B9HmaZhEmfPx2s08 5sQC3N/HcSD1w5ooD04nOGiYZvsty2MZGc8MSM53xlPg2/mw8kYX8AbcSV7i0p6OaZkm 2MTxMV1chPvb3ehD43rE3nNrKlV32ni4IckxNvwXhoMJT7tgDMXaiWiX5ipHSc2yUOiT REtOBrBF5+4aADJW/3A5HN2i/YyUwaA8EQ84gwSm73h4yvBMQSHMMnvYY1s6dGl+3uZv ug== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com with ESMTP id 3eny19sexb-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 10 Mar 2022 11:26:19 +0000 Received: from m0098396.ppops.net (m0098396.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.43/8.16.0.43) with SMTP id 22AAepaq016240; Thu, 10 Mar 2022 11:26:19 GMT Received: from ppma03fra.de.ibm.com (6b.4a.5195.ip4.static.sl-reverse.com [149.81.74.107]) by mx0a-001b2d01.pphosted.com with ESMTP id 3eny19sevs-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 10 Mar 2022 11:26:19 +0000 Received: from pps.filterd (ppma03fra.de.ibm.com [127.0.0.1]) by ppma03fra.de.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 22ABEkKi007746; Thu, 10 Mar 2022 11:26:16 GMT Received: from b06cxnps3075.portsmouth.uk.ibm.com (d06relay10.portsmouth.uk.ibm.com [9.149.109.195]) by ppma03fra.de.ibm.com with ESMTP id 3enpk2x5rb-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 10 Mar 2022 11:26:16 +0000 Received: from d06av24.portsmouth.uk.ibm.com (mk.ibm.com [9.149.105.60]) by b06cxnps3075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 22ABQDCE33096082 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 10 Mar 2022 11:26:13 GMT Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id EC29542045; Thu, 10 Mar 2022 11:26:12 +0000 (GMT) Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id EF6CD42041; Thu, 10 Mar 2022 11:26:11 +0000 (GMT) Received: from linux6.. (unknown [9.114.12.104]) by d06av24.portsmouth.uk.ibm.com (Postfix) with ESMTP; Thu, 10 Mar 2022 11:26:11 +0000 (GMT) From: Janosch Frank To: qemu-devel@nongnu.org Subject: [PATCH 0/5] s390x: dump: Add PV dump support Date: Thu, 10 Mar 2022 11:25:42 +0000 Message-Id: <20220310112547.3823-1-frankja@linux.ibm.com> X-Mailer: git-send-email 2.32.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: kAK73JWV3zOx3hqG20VbPDtbo1GB4P3W X-Proofpoint-ORIG-GUID: tvylx7Is0Py6CtKUnvRrmGLxVtnaH_o9 X-Proofpoint-UnRewURL: 0 URL was un-rewritten MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.816,Hydra:6.0.425,FMLib:17.11.64.514 definitions=2022-03-10_03,2022-03-09_01,2022-02-23_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 adultscore=0 mlxlogscore=640 phishscore=0 mlxscore=0 spamscore=0 clxscore=1011 priorityscore=1501 impostorscore=0 malwarescore=0 suspectscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2202240000 definitions=main-2203100059 Received-SPF: pass client-ip=148.163.156.1; envelope-from=frankja@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: thuth@redhat.com, borntraeger@linux.ibm.com, cohuck@redhat.com, pasic@linux.ibm.com, qemu-s390x@nongnu.org, mhartmay@linux.ibm.com, pbonzini@redhat.com, marcandre.lureau@redhat.com, imbrenda@linux.ibm.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This is the qemu part of the PV dump support where we take the data that the KVM PV dump API gives us and put it into the ELF file for later processing. The encrypted PV cpu state is added as an additional note like the other architecture registers. The storage state and completion data however are put into their own sections. The storage state data provides one part of the puzzle needed to decrypt the memory and the completion data contains the other part as well as a key derivation seed for the encrypted cpu data. Based on: https://lore.kernel.org/qemu-devel/20220310110854.2701-1-frankja@linux.ibm.com/T/#t https://lore.kernel.org/qemu-devel/20220310111608.3362-2-frankja@linux.ibm.com/T/#t Personal notes: I still need to improve error management which will mean that the ioctl functions in hw/s390x/pv.c will need to be changed to return the rc/rrc. Janosch Frank (5): linux header sync s390x: Add protected dump cap s390x: Introduce PV query interface s390x: Add KVM PV dump interface s390x: pv: Add dump support dump/dump.c | 27 ---- hw/s390x/pv.c | 113 ++++++++++++++++ hw/s390x/s390-virtio-ccw.c | 5 + include/elf.h | 1 + include/hw/s390x/pv.h | 18 +++ include/sysemu/dump.h | 27 ++++ linux-headers/linux/kvm.h | 55 ++++++++ target/s390x/arch_dump.c | 247 ++++++++++++++++++++++++++++++----- target/s390x/kvm/kvm.c | 7 + target/s390x/kvm/kvm_s390x.h | 1 + 10 files changed, 443 insertions(+), 58 deletions(-)