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machine: Add helpers to get cores/threads per socket

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The number of cores/threads per socket are needed for smbios, and are
also useful for other modules.

Provide the helpers to wrap the calculation of cores/threads per socket
so that we can avoid calculation errors caused by other modules miss
topology changes.

Suggested-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Message-Id: <20230628135437.1145805-2-zhao1.liu@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Zhao Liu 2023-06-28 21:54:34 +08:00 committed by Michael S. Tsirkin
parent b6f53ae005
commit a1d027be95
2 changed files with 12 additions and 0 deletions
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10
hw/core/machine-smp.c
View File

@ -197,3 +197,13 @@ void machine_parse_smp_config(MachineState *ms,
return;
}
}
unsigned int machine_topo_get_cores_per_socket(const MachineState *ms)
{
return ms->smp.cores * ms->smp.clusters * ms->smp.dies;
}
unsigned int machine_topo_get_threads_per_socket(const MachineState *ms)
{
return ms->smp.threads * machine_topo_get_cores_per_socket(ms);
}

2
include/hw/boards.h
View File

@ -35,6 +35,8 @@ void machine_set_cpu_numa_node(MachineState *machine,
Error **errp);
void machine_parse_smp_config(MachineState *ms,
const SMPConfiguration *config, Error **errp);
unsigned int machine_topo_get_cores_per_socket(const MachineState *ms);
unsigned int machine_topo_get_threads_per_socket(const MachineState *ms);
/**
* machine_class_allow_dynamic_sysbus_dev: Add type to list of valid devices