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Re: [PATCH v15 05/11] s390x/cpu topology: resetting the Topology-Change-

From: Thomas Huth
Subject: Re: [PATCH v15 05/11] s390x/cpu topology: resetting the Topology-Change-Report
Date: Mon, 6 Feb 2023 12:05:30 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.13.0

On 01/02/2023 14.20, Pierre Morel wrote:
During a subsystem reset the Topology-Change-Report is cleared
by the machine.
Let's ask KVM to clear the Modified Topology Change Report (MTCR)
bit of the SCA in the case of a subsystem reset.

Signed-off-by: Pierre Morel <pmorel@linux.ibm.com>
diff --git a/hw/s390x/cpu-topology.c b/hw/s390x/cpu-topology.c
index a80a1ebf22..cf63f3dd01 100644
--- a/hw/s390x/cpu-topology.c
+++ b/hw/s390x/cpu-topology.c
@@ -85,6 +85,18 @@ static void s390_topology_init(MachineState *ms)
      QTAILQ_INSERT_HEAD(&s390_topology.list, entry, next);
+ * s390_topology_reset:
+ *
+ * Generic reset for CPU topology, calls s390_topology_reset()
+ * s390_topology_reset() to reset the kernel Modified Topology

Duplicated s390_topology_reset() in the comment.

+ * change record.
+ */
+void s390_topology_reset(void)
+    s390_cpu_topology_reset();

With the nit fixed:
Reviewed-by: Thomas Huth <thuth@redhat.com>

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