From: Pierre Morel <pmorel@linux.ibm.com>
To: qemu-s390x@nongnu.org
Cc: qemu-devel@nongnu.org, borntraeger@de.ibm.com,
pasic@linux.ibm.com, richard.henderson@linaro.org,
david@redhat.com, thuth@redhat.com, cohuck@redhat.com,
mst@redhat.com, pbonzini@redhat.com, kvm@vger.kernel.org,
ehabkost@redhat.com, marcel.apfelbaum@gmail.com,
eblake@redhat.com, armbru@redhat.com, seiden@linux.ibm.com,
nrb@linux.ibm.com, frankja@linux.ibm.com
Subject: [PATCH v9 01/10] s390x/cpus: Make absence of multithreading clear
Date: Fri, 2 Sep 2022 09:55:22 +0200 [thread overview]
Message-ID: <20220902075531.188916-2-pmorel@linux.ibm.com> (raw)
In-Reply-To: <20220902075531.188916-1-pmorel@linux.ibm.com>
S390x do not support multithreading in the guest.
Do not let admin falsely specify multithreading on QEMU
smp commandline.
Signed-off-by: Pierre Morel <pmorel@linux.ibm.com>
---
hw/s390x/s390-virtio-ccw.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
index 70229b102b..b5ca154e2f 100644
--- a/hw/s390x/s390-virtio-ccw.c
+++ b/hw/s390x/s390-virtio-ccw.c
@@ -86,6 +86,9 @@ static void s390_init_cpus(MachineState *machine)
MachineClass *mc = MACHINE_GET_CLASS(machine);
int i;
+ /* Explicitely do not support threads */
+ assert(machine->smp.threads == 1);
+
/* initialize possible_cpus */
mc->possible_cpu_arch_ids(machine);
--
2.31.1
next prev parent reply other threads:[~2022-09-02 7:58 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-02 7:55 [PATCH v9 00/10] s390x: CPU Topology Pierre Morel
2022-09-02 7:55 ` Pierre Morel [this message]
2022-09-05 11:32 ` [PATCH v9 01/10] s390x/cpus: Make absence of multithreading clear Nico Boehr
2022-09-05 15:10 ` Pierre Morel
2022-09-05 15:23 ` Janis Schoetterl-Glausch
2022-09-05 15:42 ` Pierre Morel
2022-09-27 9:44 ` Cédric Le Goater
2022-09-28 13:21 ` Pierre Morel
2022-09-28 16:16 ` Pierre Morel
2022-09-28 16:28 ` Cédric Le Goater
2022-10-11 7:21 ` Pierre Morel
2022-10-11 7:28 ` Cédric Le Goater
2022-09-28 18:11 ` Daniel P. Berrangé
2022-10-10 17:20 ` Pierre Morel
2022-09-02 7:55 ` [PATCH v9 02/10] s390x/cpu topology: core_id sets s390x CPU topology Pierre Morel
2022-09-05 18:11 ` Janis Schoetterl-Glausch
2022-09-12 15:34 ` Pierre Morel
2022-09-06 5:58 ` Nico Boehr
2022-09-12 15:40 ` Pierre Morel
2022-09-27 12:03 ` Cédric Le Goater
2022-09-28 13:15 ` Pierre Morel
2022-09-02 7:55 ` [PATCH v9 03/10] s390x/cpu topology: reporting the CPU topology to the guest Pierre Morel
2022-09-06 8:17 ` Nico Boehr
2022-09-28 10:03 ` Pierre Morel
2022-09-06 11:49 ` Janis Schoetterl-Glausch
2022-09-28 10:01 ` Pierre Morel
2022-09-07 10:26 ` Janis Schoetterl-Glausch
2022-09-28 9:07 ` Pierre Morel
2022-09-02 7:55 ` [PATCH v9 04/10] hw/core: introducing drawer and books for s390x Pierre Morel
2022-09-06 8:59 ` Markus Armbruster
2022-09-28 9:04 ` Pierre Morel
2022-09-28 9:06 ` Pierre Morel
2022-09-02 7:55 ` [PATCH v9 05/10] s390x/cpu: reporting drawers and books topology to the guest Pierre Morel
2022-09-07 10:36 ` Janis Schoetterl-Glausch
2022-09-28 8:55 ` Pierre Morel
2022-09-02 7:55 ` [PATCH v9 06/10] s390x/cpu_topology: resetting the Topology-Change-Report Pierre Morel
2022-09-06 8:27 ` Nico Boehr
2022-09-28 8:35 ` Pierre Morel
2022-09-08 7:57 ` Janis Schoetterl-Glausch
2022-09-28 8:46 ` Pierre Morel
2022-09-02 7:55 ` [PATCH v9 07/10] s390x/cpu_topology: CPU topology migration Pierre Morel
2022-09-08 18:04 ` Janis Schoetterl-Glausch
2022-09-28 8:34 ` Pierre Morel
2022-09-29 17:30 ` Pierre Morel
2022-09-02 7:55 ` [PATCH v9 08/10] target/s390x: interception of PTF instruction Pierre Morel
2022-09-09 16:50 ` Janis Schoetterl-Glausch
2022-09-28 13:34 ` Pierre Morel
2022-09-02 7:55 ` [PATCH v9 09/10] s390x/cpu_topology: activating CPU topology Pierre Morel
2022-09-05 15:29 ` Pierre Morel
2022-09-27 14:41 ` Cédric Le Goater
2022-09-28 8:15 ` Pierre Morel
2022-09-02 7:55 ` [PATCH v9 10/10] docs/s390x: document s390x cpu topology Pierre Morel
2022-09-12 13:41 ` Janis Schoetterl-Glausch
2022-09-28 8:19 ` Pierre Morel
2022-09-12 13:48 ` Janis Schoetterl-Glausch
2022-09-12 14:38 ` [PATCH v9 00/10] s390x: CPU Topology Janis Schoetterl-Glausch
2022-09-28 8:28 ` Pierre Morel
2022-11-16 16:51 ` Christian Borntraeger
2022-11-17 9:31 ` Pierre Morel
2022-11-17 16:38 ` Pierre Morel
2022-11-24 9:25 ` Pierre Morel
2022-11-27 10:50 ` Pierre Morel
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