28  * This file implements the APIC-ID-based CPU topology enumeration logic,
31  *   http://software.intel.com/en-us/articles/intel-64-architecture-processor-topology-enumeration/
42 #include "qapi/qapi-types-machine-common.h"
46  * APIC IDs can be 32-bit, but beware: APIC IDs > 255 require x2APIC support
71     count -= 1;  in apicid_bitwidth_for_count()
72     return count ? 32 - clz32(count) : 0;  in apicid_bitwidth_for_count()
78     return apicid_bitwidth_for_count(topo_info->threads_per_core);  in apicid_smt_width()
84     return apicid_bitwidth_for_count(topo_info->cores_per_module);  in apicid_core_width()
90     return apicid_bitwidth_for_count(topo_info->modules_per_die);  in apicid_module_width()
96     return apicid_bitwidth_for_count(topo_info->dies_per_pkg);  in apicid_die_width()
132     return (topo_ids->pkg_id  << apicid_pkg_offset(topo_info)) |  in x86_apicid_from_topo_ids()
133            (topo_ids->die_id  << apicid_die_offset(topo_info)) |  in x86_apicid_from_topo_ids()
134            (topo_ids->module_id << apicid_module_offset(topo_info)) |  in x86_apicid_from_topo_ids()
135            (topo_ids->core_id << apicid_core_offset(topo_info)) |  in x86_apicid_from_topo_ids()
136            topo_ids->smt_id;  in x86_apicid_from_topo_ids()
147     unsigned nr_dies = topo_info->dies_per_pkg;  in x86_topo_ids_from_idx()
148     unsigned nr_modules = topo_info->modules_per_die;  in x86_topo_ids_from_idx()
149     unsigned nr_cores = topo_info->cores_per_module;  in x86_topo_ids_from_idx()
150     unsigned nr_threads = topo_info->threads_per_core;  in x86_topo_ids_from_idx()
152     topo_ids->pkg_id = cpu_index / (nr_dies * nr_modules *  in x86_topo_ids_from_idx()
154     topo_ids->die_id = cpu_index / (nr_modules * nr_cores *  in x86_topo_ids_from_idx()
156     topo_ids->module_id = cpu_index / (nr_cores * nr_threads) %  in x86_topo_ids_from_idx()
158     topo_ids->core_id = cpu_index / nr_threads % nr_cores;  in x86_topo_ids_from_idx()
159     topo_ids->smt_id = cpu_index % nr_threads;  in x86_topo_ids_from_idx()
170     topo_ids->smt_id = apicid &  in x86_topo_ids_from_apicid()
172     topo_ids->core_id =  in x86_topo_ids_from_apicid()
175     topo_ids->module_id =  in x86_topo_ids_from_apicid()
178     topo_ids->die_id =  in x86_topo_ids_from_apicid()
181     topo_ids->pkg_id = apicid >> apicid_pkg_offset(topo_info);  in x86_topo_ids_from_apicid()
208     return topo_info->modules_per_die * topo_info->dies_per_pkg;  in x86_module_per_pkg()
213     return topo_info->cores_per_module * x86_module_per_pkg(topo_info);  in x86_cores_per_pkg()
218     return topo_info->threads_per_core * x86_cores_per_pkg(topo_info);  in x86_threads_per_pkg()
223     return topo_info->threads_per_core * topo_info->cores_per_module;  in x86_threads_per_module()
228     return x86_threads_per_module(topo_info) * topo_info->modules_per_die;  in x86_threads_per_die()