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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Wed, 26 Feb 2020 15:00:46 -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 01QF0jP842795060 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 26 Feb 2020 15:00:45 GMT Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D8B4642081; Wed, 26 Feb 2020 15:00:44 +0000 (GMT) Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A43F742047; Wed, 26 Feb 2020 15:00:44 +0000 (GMT) Received: from oc7455500831.ibm.com (unknown [9.152.224.219]) by d06av24.portsmouth.uk.ibm.com (Postfix) with ESMTP; Wed, 26 Feb 2020 15:00:44 +0000 (GMT) Subject: Re: [PATCH v5 06/18] s390x: protvirt: Handle diag 308 subcodes 0,1,3,4 To: Janosch Frank , qemu-devel@nongnu.org References: <20200226122038.61481-1-frankja@linux.ibm.com> <20200226122038.61481-7-frankja@linux.ibm.com> From: Christian Borntraeger Autocrypt: addr=borntraeger@de.ibm.com; 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Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: <20200226122038.61481-7-frankja@linux.ibm.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 x-cbid: 20022615-0020-0000-0000-000003ADCEF9 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 20022615-0021-0000-0000-00002205EA37 Message-Id: <7cf0c871-0107-23a9-0420-44ef5d5af015@de.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.572 definitions=2020-02-26_05:2020-02-26, 2020-02-26 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=805 phishscore=0 bulkscore=0 suspectscore=0 clxscore=1015 adultscore=0 lowpriorityscore=0 mlxscore=0 priorityscore=1501 malwarescore=0 impostorscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2002260108 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] X-Received-From: 148.163.158.5 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-s390x@nongnu.org, cohuck@redhat.com, david@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 26.02.20 13:20, Janosch Frank wrote: > As we now have access to the protection state of the cpus, we can > implement special handling of diag 308 subcodes for cpus in the > protected state. > > For subcodes 0 and 1 we need to unshare all pages before continuing, > so the guest doesn't accidentally expose data when dumping. > > For subcode 3/4 we tear down the protected VM and reboot into > unprotected mode. We do not provide a secure reboot. > > Before we can do the unshare calls, we need to mark all cpus as > stopped. > > Signed-off-by: Janosch Frank > --- > hw/s390x/s390-virtio-ccw.c | 37 ++++++++++++++++++++++++++++++++++--- > target/s390x/diag.c | 4 ++++ > 2 files changed, 38 insertions(+), 3 deletions(-) > > diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c > index 79f472c309..9983165b05 100644 > --- a/hw/s390x/s390-virtio-ccw.c > +++ b/hw/s390x/s390-virtio-ccw.c > @@ -335,6 +335,7 @@ static void s390_machine_unprotect(S390CcwMachineState *ms) > } > ms->pv = false; > } > + migrate_del_blocker(pv_mig_blocker); > } > and that part into patch 5?