3  * CPU Topology
14  *   guest with CPU and KVM specificity will be implemented inside
23 #include "target/s390x/cpu.h"
25 #include "hw/s390x/cpu-topology.h"
36     /* will be initialized after the CPU model is realized */
43  * @cpu: s390x CPU
56  * @cpu: s390x CPU
59  * for a cpu.
61 static int s390_socket_nb(S390CPU *cpu)  in s390_socket_nb()  argument
63     return s390_socket_nb_from_ids(cpu->env.drawer_id, cpu->env.book_id,  in s390_socket_nb()
64                                    cpu->env.socket_id);  in s390_socket_nb()
100  * Function codes 0 (horizontal) and 1 (vertical) define the CPU
106 void s390_handle_ptf(S390CPU *cpu, uint8_t r1, uintptr_t ra)  in s390_handle_ptf()  argument
109     CPUS390XState *env = &cpu->env;  in s390_handle_ptf()
136             setcc(cpu, 2);  in s390_handle_ptf()
141             setcc(cpu, 0);  in s390_handle_ptf()
153  * Generic reset for CPU topology, calls s390_topology_reset()
164  * @cpu: pointer to a S390CPU
168  * Passing a CPU with some, but not all, attributes set is considered
175  * CPU type and dedication have defaults values set in the
182 static bool s390_topology_cpu_default(S390CPU *cpu, Error **errp)  in s390_topology_cpu_default()  argument
185     CPUS390XState *env = &cpu->env;  in s390_topology_cpu_default()
205      * Medium when the CPU is not dedicated.  in s390_topology_cpu_default()
257         error_setg(errp, "A dedicated CPU implies high entitlement");  in s390_topology_check()
265  * @cpu: Current cpu
275 static bool s390_topology_need_report(S390CPU *cpu, int drawer_id,  in s390_topology_need_report()  argument
279     return cpu->env.drawer_id != drawer_id ||  in s390_topology_need_report()
280            cpu->env.book_id != book_id ||  in s390_topology_need_report()
281            cpu->env.socket_id != socket_id ||  in s390_topology_need_report()
282            cpu->env.entitlement != entitlement ||  in s390_topology_need_report()
283            cpu->env.dedicated != dedicated;  in s390_topology_need_report()
289  * @cpu: the CPU for which to update the properties from the environment.
292 static void s390_update_cpu_props(MachineState *ms, S390CPU *cpu)  in s390_update_cpu_props()  argument
296     props = &ms->possible_cpus->cpus[cpu->env.core_id].props;  in s390_update_cpu_props()
298     props->socket_id = cpu->env.socket_id;  in s390_update_cpu_props()
299     props->book_id = cpu->env.book_id;  in s390_update_cpu_props()
300     props->drawer_id = cpu->env.drawer_id;  in s390_update_cpu_props()
307  * @cpu: the new S390CPU to insert in the topology structure
310  * Called from CPU hotplug to check and setup the CPU attributes
311  * before the CPU is inserted in the topology.
313  * will be updated by KVM on creation of the new CPU.
315 void s390_topology_setup_cpu(MachineState *ms, S390CPU *cpu, Error **errp)  in s390_topology_setup_cpu()  argument
320      * We do not want to initialize the topology if the CPU model  in s390_topology_setup_cpu()
322      * the first CPU to be realized, which realizes the CPU model  in s390_topology_setup_cpu()
325      * s390_topology_setup_cpu() is called from the CPU hotplug.  in s390_topology_setup_cpu()
331     if (!s390_topology_cpu_default(cpu, errp)) {  in s390_topology_setup_cpu()
335     if (!s390_topology_check(cpu->env.socket_id, cpu->env.book_id,  in s390_topology_setup_cpu()
336                              cpu->env.drawer_id, cpu->env.entitlement,  in s390_topology_setup_cpu()
337                              cpu->env.dedicated, errp)) {  in s390_topology_setup_cpu()
342     entry = s390_socket_nb(cpu);  in s390_topology_setup_cpu()
352     s390_update_cpu_props(ms, cpu);  in s390_topology_setup_cpu()
368     S390CPU *cpu;  in s390_change_topology()  local
370     cpu = s390_cpu_addr2state(core_id);  in s390_change_topology()
371     if (!cpu) {  in s390_change_topology()
376     /* Get attributes not provided from cpu and verify the new topology */  in s390_change_topology()
378         socket_id = cpu->env.socket_id;  in s390_change_topology()
381         book_id = cpu->env.book_id;  in s390_change_topology()
384         drawer_id = cpu->env.drawer_id;  in s390_change_topology()
387         dedicated = cpu->env.dedicated;  in s390_change_topology()
393      * Medium when the CPU is not dedicated.  in s390_change_topology()
410     old_socket_entry = s390_socket_nb(cpu);  in s390_change_topology()
425     report_needed = s390_topology_need_report(cpu, drawer_id, book_id,  in s390_change_topology()
430     cpu->env.drawer_id = drawer_id;  in s390_change_topology()
431     cpu->env.book_id = book_id;  in s390_change_topology()
432     cpu->env.socket_id = socket_id;  in s390_change_topology()
433     cpu->env.dedicated = dedicated;  in s390_change_topology()
434     cpu->env.entitlement = entitlement;  in s390_change_topology()
437     s390_update_cpu_props(ms, cpu);  in s390_change_topology()