From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (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 814061B143C for ; Wed, 31 Jul 2024 12:24:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.163.156.1 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722428668; cv=none; b=kJzV9VMDzGBUE28KrZvJUOlsinZ1GAuZkC1AWxesi2nr582cDgtsiRpRBzyw6JgJ+Ty/xPSjDupr0xzN9a6FnVl2b7MOs5QT4eUGrEKgoa42Z8PoT2CgjmJ1pT5+OYkVrG897tvyoydJKojOAach65gLMEeNp94T0T7aXjmFXic= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722428668; c=relaxed/simple; bh=F0QOeVSZKKW8fxSeRnIqzISBslH2s/wWhPrPlLY2lVA=; h=Message-ID:Date:Subject:To:Cc:References:From:In-Reply-To: Content-Type:MIME-Version; b=A70dtUKx8z1TMkOtC2aF79/t6pLn5LDzLEZ4enPaQ/TvzFiweio/SAIgnLCeEEWGYnvyqsjedokjctpLMcCjc37I9Vpnx9i8XOicRSZM4wH2EAw+szi3HWrguOFuiuhbDstLmuOjpqPLAneLYnHxpnV1yw22/ouGebT/McMGM8Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com; spf=pass smtp.mailfrom=linux.ibm.com; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b=jcEfUFSe; arc=none smtp.client-ip=148.163.156.1 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b="jcEfUFSe" Received: from pps.filterd (m0356517.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46V9081m003246 for ; Wed, 31 Jul 2024 12:24:25 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h= message-id:date:subject:to:cc:references:from:in-reply-to :content-type:content-transfer-encoding:mime-version; s=pp1; bh= TFJOeUvZM/ij6r3rUbO18Dji2ehJtVYtpRF80Xiq4bk=; b=jcEfUFSeNc1pMak/ iB1rMxfUFcqfClZkrI8d6SRcV46gRSY20FFxnwynFGTDO3cStJf3kmdH23/fpZf+ MXrAqS0hP5dVP7ArIihiVcMkwG9r02UizireTpyHlCbixkqxSypqS/G5knirrGox /hq2HvKsgHn4oSdIKylxBBttwaxpv4IevfDPTapHKiyAVDzkgc0V1d0r/WyOq1jl 0gl+YZxpHaCvbDgL+aFhrmZ0CT8RAEan7VxKm4e4d+oCxUGB0Y0BMeL8sVcsBf12 6oQnlLvTK9TqOvRObLxruueXksn3u1/MRpjuGwjaTWiUC5CmMwQA4F1oJhih+9tJ uOPg/w== Received: from ppma13.dal12v.mail.ibm.com (dd.9e.1632.ip4.static.sl-reverse.com [50.22.158.221]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 40qj828dkk-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Wed, 31 Jul 2024 12:24:25 +0000 (GMT) Received: from pps.filterd (ppma13.dal12v.mail.ibm.com [127.0.0.1]) by ppma13.dal12v.mail.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 46V9PCCM003748 for ; Wed, 31 Jul 2024 12:24:24 GMT Received: from smtprelay01.fra02v.mail.ibm.com ([9.218.2.227]) by ppma13.dal12v.mail.ibm.com (PPS) with ESMTPS id 40ndemk5q1-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Wed, 31 Jul 2024 12:24:24 +0000 Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay01.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 46VCOJwt56885668 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 31 Jul 2024 12:24:21 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 166A62004B; Wed, 31 Jul 2024 12:24:19 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id F1C2020040; Wed, 31 Jul 2024 12:24:18 +0000 (GMT) Received: from [9.152.224.131] (unknown [9.152.224.131]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Wed, 31 Jul 2024 12:24:18 +0000 (GMT) Message-ID: Date: Wed, 31 Jul 2024 14:24:18 +0200 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] KVM: s390: fix validity interception issue when gisa is switched off To: Michael Mueller , linux-s390@vger.kernel.org Cc: frankja@linux.ibm.com, nrb@linux.ibm.com References: <20240731113102.849562-1-mimu@linux.ibm.com> Content-Language: en-US From: Christian Borntraeger In-Reply-To: <20240731113102.849562-1-mimu@linux.ibm.com> Content-Type: text/plain; charset=UTF-8; format=flowed X-TM-AS-GCONF: 00 X-Proofpoint-GUID: CdLdt391YkjFm-do7_qGBL6G64v7Y-pf X-Proofpoint-ORIG-GUID: CdLdt391YkjFm-do7_qGBL6G64v7Y-pf Content-Transfer-Encoding: 7bit X-Proofpoint-UnRewURL: 0 URL was un-rewritten Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-07-31_08,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 mlxscore=0 adultscore=0 mlxlogscore=999 lowpriorityscore=0 suspectscore=0 impostorscore=0 spamscore=0 clxscore=1015 malwarescore=0 bulkscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2407310091 Am 31.07.24 um 13:31 schrieb Michael Mueller: > The following validity interception occures when the gisa usage has been > switched off either by using kernel parameter "kvm.use_gisa=0" or by > setting the related sysfs attribute to N (echo N >/sys/module/kvm/ > parameters/use_gisa). > > The issue surfaces in the host kernel with the following kernel message as > soon a new kvm guest start has been attemted. > > kvm: unhandled validity intercept 0x1011 > WARNING: CPU: 0 PID: 781237 at arch/s390/kvm/intercept.c:101 kvm_handle_sie_intercept+0x42e/0x4d0 [kvm] > Modules linked in: vhost_net tap tun xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT xt_tcpudp nft_compat x_tables nf_nat_tftp nf_conntrack_tftp vfio_pci_core irqbypass vhost_vsock vmw_vsock_virtio_transport_common vsock vhost vhost_iotlb kvm nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables sunrpc mlx5_ib ib_uverbs ib_core mlx5_core uvdevice s390_trng eadm_sch vfio_ccw zcrypt_cex4 mdev vfio_iommu_type1 vfio sch_fq_codel drm i2c_core loop drm_panel_orientation_quirks configfs nfnetlink lcs ctcm fsm dm_service_time ghash_s390 prng chacha_s390 libchacha aes_s390 des_s390 libdes sha3_512_s390 sha3_256_s390 sha512_s390 sha256_s390 sha1_s390 sha_common dm_mirror dm_region_hash dm_log zfcp scsi_transport_fc scsi_dh_rdac scsi_dh_emc scsi_dh_alua pkey zcrypt dm_multipath rng_core autofs4 [last unloaded: vfio_pci] > CPU: 0 PID: 781237 Comm: CPU 0/KVM Not tainted 6.10.0-08682-gcad9f11498ea #6 > Hardware name: IBM 3931 A01 701 (LPAR) > Krnl PSW : 0704c00180000000 000003d93deb0122 (kvm_handle_sie_intercept+0x432/0x4d0 [kvm]) > R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:0 PM:0 RI:0 EA:3 > Krnl GPRS: 000003d900000027 000003d900000023 0000000000000028 000002cd00000000 > 000002d063a00900 00000359c6daf708 00000000000bebb5 0000000000001eff > 000002cfd82e9000 000002cfd80bc000 0000000000001011 000003d93deda412 > 000003ff8962df98 000003d93de77ce0 000003d93deb011e 00000359c6daf960 > Krnl Code: 000003d93deb0112: c020fffe7259 larl %r2,000003d93de7e5c4 > 000003d93deb0118: c0e53fa8beac brasl %r14,000003d9bd3c7e70 > #000003d93deb011e: af000000 mc 0,0 > >000003d93deb0122: a728ffea lhi %r2,-22 > 000003d93deb0126: a7f4fe24 brc 15,000003d93deafd6e > 000003d93deb012a: 9101f0b0 tm 176(%r15),1 > 000003d93deb012e: a774fe48 brc 7,000003d93deafdbe > 000003d93deb0132: 40a0f0ae sth %r10,174(%r15) > Call Trace: > [<000003d93deb0122>] kvm_handle_sie_intercept+0x432/0x4d0 [kvm] > ([<000003d93deb011e>] kvm_handle_sie_intercept+0x42e/0x4d0 [kvm]) > [<000003d93deacc10>] vcpu_post_run+0x1d0/0x3b0 [kvm] > [<000003d93deaceda>] __vcpu_run+0xea/0x2d0 [kvm] > [<000003d93dead9da>] kvm_arch_vcpu_ioctl_run+0x16a/0x430 [kvm] > [<000003d93de93ee0>] kvm_vcpu_ioctl+0x190/0x7c0 [kvm] > [<000003d9bd728b4e>] vfs_ioctl+0x2e/0x70 > [<000003d9bd72a092>] __s390x_sys_ioctl+0xc2/0xd0 > [<000003d9be0e9222>] __do_syscall+0x1f2/0x2e0 > [<000003d9be0f9a90>] system_call+0x70/0x98 > Last Breaking-Event-Address: > [<000003d9bd3c7f58>] __warn_printk+0xe8/0xf0 > > Cc: stable@vger.kernel.org > Reported-by: Christian Borntraeger > Closes: https://ibm-systems-z.slack.com/archives/C04BWBXSKEY/p1722280755665409 > Fixes: fe0ef0030463 ("KVM: s390: sort out physical vs virtual pointers usage") > Signed-off-by: Michael Mueller Tested-by: Christian Borntraeger