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Currently we'll always generate a cluster node no matter user has specified '-smp clusters=X' or not. Cluster is an optional level and will participant the building of Linux scheduling domains and only appears on a few platforms. It's unncessary to always build it when it cannot reflect the real topology on platforms having no cluster implementation and to avoid affecting the linux scheduling domains in the VM. So only generate the cluster topology in ACPI PPTT when the user has specified it explicitly in -smp. Tested qemu-system-aarch64 with `-smp 8` and linux 6.1-rc1, without this patch: estuary:/sys/devices/system/cpu/cpu0/topology$ cat cluster_* ff # cluster_cpus 0-7 # cluster_cpus_list 56 # cluster_id with this patch: estuary:/sys/devices/system/cpu/cpu0/topology$ cat cluster_* ff # cluster_cpus 0-7 # cluster_cpus_list 36 # cluster_id, with no cluster node kernel will make it to physical package id Acked-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Yanan Wang <wangyanan55@huawei.com> Tested-by: Yanan Wang <wangyanan55@huawei.com> Signed-off-by: Yicong Yang <yangyicong@hisilicon.com> Message-Id: <20221229065513.55652-3-yangyicong@huawei.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> |
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| .. | ||
| acpi-cpu-hotplug-stub.c | ||
| acpi-mem-hotplug-stub.c | ||
| acpi-nvdimm-stub.c | ||
| acpi-pci-hotplug-stub.c | ||
| acpi-stub.c | ||
| acpi-x86-stub.c | ||
| acpi_interface.c | ||
| aml-build-stub.c | ||
| aml-build.c | ||
| bios-linker-loader.c | ||
| core.c | ||
| cpu.c | ||
| cpu_hotplug.c | ||
| cxl-stub.c | ||
| cxl.c | ||
| erst.c | ||
| generic_event_device.c | ||
| ghes-stub.c | ||
| ghes.c | ||
| hmat.c | ||
| hmat.h | ||
| ich9.c | ||
| ich9_tco.c | ||
| ipmi-stub.c | ||
| ipmi.c | ||
| Kconfig | ||
| memory_hotplug.c | ||
| meson.build | ||
| nvdimm.c | ||
| pci.c | ||
| pcihp.c | ||
| piix4.c | ||
| tpm.c | ||
| trace-events | ||
| trace.h | ||
| utils.c | ||
| viot.c | ||
| viot.h | ||
| vmgenid.c | ||