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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Fri, 6 Mar 2020 11:48:31 -0000 Received: from d06av26.portsmouth.uk.ibm.com (d06av26.portsmouth.uk.ibm.com [9.149.105.62]) by b06cxnps4074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 026BmUkg51249198 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 6 Mar 2020 11:48:30 GMT Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id BFBFBAE051; Fri, 6 Mar 2020 11:48:30 +0000 (GMT) Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8F405AE04D; Fri, 6 Mar 2020 11:48:30 +0000 (GMT) Received: from oc7455500831.ibm.com (unknown [9.152.224.141]) by d06av26.portsmouth.uk.ibm.com (Postfix) with ESMTP; Fri, 6 Mar 2020 11:48:30 +0000 (GMT) Subject: Re: [PATCH v6 03/18] s390x: protvirt: Support unpack facility To: Janosch Frank , qemu-devel@nongnu.org References: <20200304114231.23493-1-frankja@linux.ibm.com> <20200304114231.23493-4-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: <20200304114231.23493-4-frankja@linux.ibm.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 x-cbid: 20030611-0028-0000-0000-000003E1751D X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 20030611-0029-0000-0000-000024A6AD31 Message-Id: <41dabcca-2840-7420-5a46-bd9e6e575f12@de.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.572 definitions=2020-03-06_03:2020-03-06, 2020-03-06 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 clxscore=1015 mlxscore=0 phishscore=0 mlxlogscore=999 suspectscore=0 lowpriorityscore=0 impostorscore=0 bulkscore=0 spamscore=0 adultscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2003060085 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 04.03.20 12:42, Janosch Frank wrote: [...] > diff --git a/target/s390x/cpu.c b/target/s390x/cpu.c > index 3dd396e870..69b1cc5dfc 100644 > --- a/target/s390x/cpu.c > +++ b/target/s390x/cpu.c > @@ -37,6 +37,8 @@ > #include "sysemu/hw_accel.h" > #include "hw/qdev-properties.h" > #ifndef CONFIG_USER_ONLY > +#include "hw/s390x/s390-virtio-ccw.h" > +#include "hw/s390x/pv.h" > #include "hw/boards.h" > #include "sysemu/arch_init.h" > #include "sysemu/sysemu.h" > @@ -191,6 +193,7 @@ static void s390_cpu_realizefn(DeviceState *dev, Error **errp) > > #if !defined(CONFIG_USER_ONLY) > MachineState *ms = MACHINE(qdev_get_machine()); > + S390CcwMachineState *ccw = S390_CCW_MACHINE(ms); > unsigned int max_cpus = ms->smp.max_cpus; > if (cpu->env.core_id >= max_cpus) { > error_setg(&err, "Unable to add CPU with core-id: %" PRIu32 I messed this up and this can break for the none machine. Something like this on top: diff --git a/target/s390x/cpu.c b/target/s390x/cpu.c index 7840e784f1..1b42b0fa25 100644 --- a/target/s390x/cpu.c +++ b/target/s390x/cpu.c @@ -181,6 +181,18 @@ static void s390_cpu_disas_set_info(CPUState *cpu, disassemble_info *info) info->print_insn = print_insn_s390; } +static bool machine_is_pv(MachineState *ms) +{ + Object *obj; + + /* we have to bail out for the "none" machine */ + obj = object_dynamic_cast(OBJECT(ms), TYPE_S390_CCW_MACHINE); + if (!obj) { + return false; + } + return S390_CCW_MACHINE(obj)->pv; +} + static void s390_cpu_realizefn(DeviceState *dev, Error **errp) { CPUState *cs = CPU(dev); @@ -198,7 +210,6 @@ static void s390_cpu_realizefn(DeviceState *dev, Error **errp) #if !defined(CONFIG_USER_ONLY) MachineState *ms = MACHINE(qdev_get_machine()); - S390CcwMachineState *ccw = S390_CCW_MACHINE(ms); unsigned int max_cpus = ms->smp.max_cpus; if (cpu->env.core_id >= max_cpus) { error_setg(&err, "Unable to add CPU with core-id: %" PRIu32 @@ -213,7 +224,7 @@ static void s390_cpu_realizefn(DeviceState *dev, Error **errp) goto out; } - cpu->env.pv = ccw->pv; + cpu->env.pv = machine_is_pv(ms); /* sync cs->cpu_index and env->core_id. The latter is needed for TCG. */ cs->cpu_index = cpu->env.core_id; #endif