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Thu, 9 Dec 2021 13:45:48 +0000 (GMT) Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5F9B811C050; Thu, 9 Dec 2021 13:45:47 +0000 (GMT) Received: from li-c6ac47cc-293c-11b2-a85c-d421c8e4747b.ibm.com.com (unknown [9.171.63.16]) by d06av25.portsmouth.uk.ibm.com (Postfix) with ESMTP; Thu, 9 Dec 2021 13:45:47 +0000 (GMT) From: Pierre Morel To: qemu-s390x@nongnu.org Subject: [PATCH v5 02/12] s390x: SCLP: reporting the maximum nested topology entries Date: Thu, 9 Dec 2021 14:46:33 +0100 Message-Id: <20211209134643.143866-3-pmorel@linux.ibm.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20211209134643.143866-1-pmorel@linux.ibm.com> References: <20211209134643.143866-1-pmorel@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: aWv139w0_ONYinVpE0bcZf4UC_hZHFsM X-Proofpoint-GUID: ul8qqHcWZFjsMt-SJkcudTdCKRR0vQk9 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.790,Hydra:6.0.425,FMLib:17.11.62.513 definitions=2021-12-09_04,2021-12-08_01,2021-12-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 adultscore=0 lowpriorityscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 impostorscore=0 clxscore=1015 priorityscore=1501 mlxscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2110150000 definitions=main-2112090075 Received-SPF: pass client-ip=148.163.158.5; envelope-from=pmorel@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_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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, ehabkost@redhat.com, kvm@vger.kernel.org, david@redhat.com, eblake@redhat.com, cohuck@redhat.com, richard.henderson@linaro.org, qemu-devel@nongnu.org, armbru@redhat.com, pasic@linux.ibm.com, borntraeger@de.ibm.com, mst@redhat.com, pbonzini@redhat.com, philmd@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" The maximum nested topology entries is used by the guest to know how many nested topology are available on the machine. Currently, reporting SCLP reports 0, which is the equivalent of reporting the default value of 2. Let's use the default SCLP value of 2 and increase this value in the future patches implementing higher levels. Signed-off-by: Pierre Morel --- hw/s390x/sclp.c | 1 + include/hw/s390x/sclp.h | 4 +++- 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/hw/s390x/sclp.c b/hw/s390x/sclp.c index 89c30a8a91..7797a45cef 100644 --- a/hw/s390x/sclp.c +++ b/hw/s390x/sclp.c @@ -125,6 +125,7 @@ static void read_SCP_info(SCLPDevice *sclp, SCCB *sccb) /* CPU information */ prepare_cpu_entries(machine, entries_start, &cpu_count); + read_info->stsi_parm = SCLP_READ_SCP_INFO_MNEST; read_info->entries_cpu = cpu_to_be16(cpu_count); read_info->offset_cpu = cpu_to_be16(offset_cpu); read_info->highest_cpu = cpu_to_be16(machine->smp.max_cpus - 1); diff --git a/include/hw/s390x/sclp.h b/include/hw/s390x/sclp.h index d3ade40a5a..c86c2c6619 100644 --- a/include/hw/s390x/sclp.h +++ b/include/hw/s390x/sclp.h @@ -116,7 +116,9 @@ typedef struct ReadInfo { SCCBHeader h; uint16_t rnmax; uint8_t rnsize; - uint8_t _reserved1[16 - 11]; /* 11-15 */ + uint8_t _reserved1[15 - 11]; /* 11-15 */ +#define SCLP_READ_SCP_INFO_MNEST 2 + uint8_t stsi_parm; uint16_t entries_cpu; /* 16-17 */ uint16_t offset_cpu; /* 18-19 */ uint8_t _reserved2[24 - 20]; /* 20-23 */