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authorPierre Morel <pmorel@linux.ibm.com>2022-11-03 18:01:41 +0100
committerThomas Huth <thuth@redhat.com>2022-11-06 12:38:57 +0100
commit6393b29966fce3c0e47746a9646ae439e7fd0728 (patch)
tree1aa7d776bfe1568091f34de3eab37ede658b7f13 /include
parent1fd396e32288bbf536483c74b68cb3ee86005a9f (diff)
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s390x/cpu topology: add max_threads machine class attribute
The S390 CPU topology accepts the smp.threads argument while in reality it does not effectively allow multthreading. Let's keep this behavior for machines older than 7.2 and refuse to use threads in newer machines until multithreading is really exposed to the guest by the machine. Signed-off-by: Pierre Morel <pmorel@linux.ibm.com> Message-Id: <20221103170150.20789-3-pmorel@linux.ibm.com> [thuth: Small fixes to the commit description] Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'include')
-rw-r--r--include/hw/s390x/s390-virtio-ccw.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/hw/s390x/s390-virtio-ccw.h b/include/hw/s390x/s390-virtio-ccw.h
index 8a0090a..4f8a39a 100644
--- a/include/hw/s390x/s390-virtio-ccw.h
+++ b/include/hw/s390x/s390-virtio-ccw.h
@@ -40,6 +40,7 @@ struct S390CcwMachineClass {
bool cpu_model_allowed;
bool css_migration_enabled;
bool hpage_1m_allowed;
+ int max_threads;
};
/* runtime-instrumentation allowed by the machine */