diff options
| author | Pierre Morel <pmorel@linux.ibm.com> | 2023-10-16 20:39:06 +0200 |
|---|---|---|
| committer | Thomas Huth <thuth@redhat.com> | 2023-10-20 07:16:53 +0200 |
| commit | 5de1aff2555275ef182197eddcadb276364ace38 (patch) | |
| tree | 0f13232b93a25ae2da23989fe9b8832b6c74857c /hw/s390x | |
| parent | 3da4aef81ca61c82c67b86af369ccd251607622e (diff) | |
CPU topology: extend with s390 specifics
S390 adds two new SMP levels, drawers and books to the CPU
topology.
S390 CPUs have specific topology features like dedication and
entitlement. These indicate to the guest information on host
vCPU scheduling and help the guest make better scheduling decisions.
Add the new levels to the relevant QAPI structs.
Add all the supported topology levels, dedication and entitlement
as properties to S390 CPUs.
Create machine-common.json so we can later include it in
machine-target.json also.
Signed-off-by: Pierre Morel <pmorel@linux.ibm.com>
Reviewed-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
Co-developed-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
Message-ID: <20231016183925.2384704-3-nsg@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'hw/s390x')
| -rw-r--r-- | hw/s390x/s390-virtio-ccw.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c index 2d75f2131f..c1123a9b45 100644 --- a/hw/s390x/s390-virtio-ccw.c +++ b/hw/s390x/s390-virtio-ccw.c @@ -744,6 +744,8 @@ static void ccw_machine_class_init(ObjectClass *oc, void *data) mc->no_sdcard = 1; mc->max_cpus = S390_MAX_CPUS; mc->has_hotpluggable_cpus = true; + mc->smp_props.books_supported = true; + mc->smp_props.drawers_supported = true; assert(!mc->get_hotplug_handler); mc->get_hotplug_handler = s390_get_hotplug_handler; mc->cpu_index_to_instance_props = s390_cpu_index_to_props; @@ -853,6 +855,8 @@ static void ccw_machine_8_1_class_options(MachineClass *mc) { ccw_machine_8_2_class_options(mc); compat_props_add(mc->compat_props, hw_compat_8_1, hw_compat_8_1_len); + mc->smp_props.drawers_supported = false; + mc->smp_props.books_supported = false; } DEFINE_CCW_MACHINE(8_1, "8.1", false); |