xref: /openbmc/qemu/hw/s390x/s390-virtio-ccw.c (revision 4985d876)
1 /*
2  * virtio ccw machine
3  *
4  * Copyright 2012, 2020 IBM Corp.
5  * Copyright (c) 2009 Alexander Graf <agraf@suse.de>
6  * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
7  *            Janosch Frank <frankja@linux.ibm.com>
8  *
9  * This work is licensed under the terms of the GNU GPL, version 2 or (at
10  * your option) any later version. See the COPYING file in the top-level
11  * directory.
12  */
13 
14 #include "qemu/osdep.h"
15 #include "qapi/error.h"
16 #include "exec/ram_addr.h"
17 #include "exec/confidential-guest-support.h"
18 #include "hw/s390x/s390-virtio-hcall.h"
19 #include "hw/s390x/sclp.h"
20 #include "hw/s390x/s390_flic.h"
21 #include "hw/s390x/ioinst.h"
22 #include "hw/s390x/css.h"
23 #include "virtio-ccw.h"
24 #include "qemu/config-file.h"
25 #include "qemu/ctype.h"
26 #include "qemu/error-report.h"
27 #include "qemu/option.h"
28 #include "qemu/qemu-print.h"
29 #include "qemu/units.h"
30 #include "hw/s390x/s390-pci-bus.h"
31 #include "sysemu/reset.h"
32 #include "hw/s390x/storage-keys.h"
33 #include "hw/s390x/storage-attributes.h"
34 #include "hw/s390x/event-facility.h"
35 #include "ipl.h"
36 #include "hw/s390x/s390-virtio-ccw.h"
37 #include "hw/s390x/css-bridge.h"
38 #include "hw/s390x/ap-bridge.h"
39 #include "migration/register.h"
40 #include "cpu_models.h"
41 #include "hw/nmi.h"
42 #include "hw/qdev-properties.h"
43 #include "hw/s390x/tod.h"
44 #include "sysemu/sysemu.h"
45 #include "sysemu/cpus.h"
46 #include "target/s390x/kvm/pv.h"
47 #include "migration/blocker.h"
48 #include "qapi/visitor.h"
49 #include "hw/s390x/cpu-topology.h"
50 
51 static Error *pv_mig_blocker;
52 
53 static S390CPU *s390x_new_cpu(const char *typename, uint32_t core_id,
54                               Error **errp)
55 {
56     S390CPU *cpu = S390_CPU(object_new(typename));
57     S390CPU *ret = NULL;
58 
59     if (!object_property_set_int(OBJECT(cpu), "core-id", core_id, errp)) {
60         goto out;
61     }
62     if (!qdev_realize(DEVICE(cpu), NULL, errp)) {
63         goto out;
64     }
65     ret = cpu;
66 
67 out:
68     object_unref(OBJECT(cpu));
69     return ret;
70 }
71 
72 static void s390_init_cpus(MachineState *machine)
73 {
74     MachineClass *mc = MACHINE_GET_CLASS(machine);
75     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
76     int i;
77 
78     if (machine->smp.threads > s390mc->max_threads) {
79         error_report("S390 does not support more than %d threads.",
80                      s390mc->max_threads);
81         exit(1);
82     }
83 
84     /* initialize possible_cpus */
85     mc->possible_cpu_arch_ids(machine);
86 
87     for (i = 0; i < machine->smp.cpus; i++) {
88         s390x_new_cpu(machine->cpu_type, i, &error_fatal);
89     }
90 }
91 
92 static const char *const reset_dev_types[] = {
93     TYPE_VIRTUAL_CSS_BRIDGE,
94     "s390-sclp-event-facility",
95     "s390-flic",
96     "diag288",
97     TYPE_S390_PCI_HOST_BRIDGE,
98     TYPE_AP_BRIDGE,
99 };
100 
101 static void subsystem_reset(void)
102 {
103     DeviceState *dev;
104     int i;
105 
106     /*
107      * ISM firmware is sensitive to unexpected changes to the IOMMU, which can
108      * occur during reset of the vfio-pci device (unmap of entire aperture).
109      * Ensure any passthrough ISM devices are reset now, while CPUs are paused
110      * but before vfio-pci cleanup occurs.
111      */
112     s390_pci_ism_reset();
113 
114     for (i = 0; i < ARRAY_SIZE(reset_dev_types); i++) {
115         dev = DEVICE(object_resolve_path_type("", reset_dev_types[i], NULL));
116         if (dev) {
117             device_cold_reset(dev);
118         }
119     }
120     if (s390_has_topology()) {
121         s390_topology_reset();
122     }
123 }
124 
125 static int virtio_ccw_hcall_notify(const uint64_t *args)
126 {
127     uint64_t subch_id = args[0];
128     uint64_t queue = args[1];
129     SubchDev *sch;
130     int cssid, ssid, schid, m;
131 
132     if (ioinst_disassemble_sch_ident(subch_id, &m, &cssid, &ssid, &schid)) {
133         return -EINVAL;
134     }
135     sch = css_find_subch(m, cssid, ssid, schid);
136     if (!sch || !css_subch_visible(sch)) {
137         return -EINVAL;
138     }
139     if (queue >= VIRTIO_QUEUE_MAX) {
140         return -EINVAL;
141     }
142     virtio_queue_notify(virtio_ccw_get_vdev(sch), queue);
143     return 0;
144 
145 }
146 
147 static int virtio_ccw_hcall_early_printk(const uint64_t *args)
148 {
149     uint64_t mem = args[0];
150     MachineState *ms = MACHINE(qdev_get_machine());
151 
152     if (mem < ms->ram_size) {
153         /* Early printk */
154         return 0;
155     }
156     return -EINVAL;
157 }
158 
159 static void virtio_ccw_register_hcalls(void)
160 {
161     s390_register_virtio_hypercall(KVM_S390_VIRTIO_CCW_NOTIFY,
162                                    virtio_ccw_hcall_notify);
163     /* Tolerate early printk. */
164     s390_register_virtio_hypercall(KVM_S390_VIRTIO_NOTIFY,
165                                    virtio_ccw_hcall_early_printk);
166 }
167 
168 static void s390_memory_init(MemoryRegion *ram)
169 {
170     MemoryRegion *sysmem = get_system_memory();
171 
172     /* allocate RAM for core */
173     memory_region_add_subregion(sysmem, 0, ram);
174 
175     /*
176      * Configure the maximum page size. As no memory devices were created
177      * yet, this is the page size of initial memory only.
178      */
179     s390_set_max_pagesize(qemu_maxrampagesize(), &error_fatal);
180     /* Initialize storage key device */
181     s390_skeys_init();
182     /* Initialize storage attributes device */
183     s390_stattrib_init();
184 }
185 
186 static void s390_init_ipl_dev(const char *kernel_filename,
187                               const char *kernel_cmdline,
188                               const char *initrd_filename, const char *firmware,
189                               const char *netboot_fw, bool enforce_bios)
190 {
191     Object *new = object_new(TYPE_S390_IPL);
192     DeviceState *dev = DEVICE(new);
193     char *netboot_fw_prop;
194 
195     if (kernel_filename) {
196         qdev_prop_set_string(dev, "kernel", kernel_filename);
197     }
198     if (initrd_filename) {
199         qdev_prop_set_string(dev, "initrd", initrd_filename);
200     }
201     qdev_prop_set_string(dev, "cmdline", kernel_cmdline);
202     qdev_prop_set_string(dev, "firmware", firmware);
203     qdev_prop_set_bit(dev, "enforce_bios", enforce_bios);
204     netboot_fw_prop = object_property_get_str(new, "netboot_fw", &error_abort);
205     if (!strlen(netboot_fw_prop)) {
206         qdev_prop_set_string(dev, "netboot_fw", netboot_fw);
207     }
208     g_free(netboot_fw_prop);
209     object_property_add_child(qdev_get_machine(), TYPE_S390_IPL,
210                               new);
211     object_unref(new);
212     qdev_realize(dev, NULL, &error_fatal);
213 }
214 
215 static void s390_create_virtio_net(BusState *bus, const char *name)
216 {
217     DeviceState *dev;
218 
219     while ((dev = qemu_create_nic_device(name, true, "virtio"))) {
220         qdev_realize_and_unref(dev, bus, &error_fatal);
221     }
222 }
223 
224 static void s390_create_sclpconsole(SCLPDevice *sclp,
225                                     const char *type, Chardev *chardev)
226 {
227     SCLPEventFacility *ef = sclp->event_facility;
228     BusState *ev_fac_bus = sclp_get_event_facility_bus(ef);
229     DeviceState *dev;
230 
231     dev = qdev_new(type);
232     object_property_add_child(OBJECT(ef), type, OBJECT(dev));
233     qdev_prop_set_chr(dev, "chardev", chardev);
234     qdev_realize_and_unref(dev, ev_fac_bus, &error_fatal);
235 }
236 
237 static void ccw_init(MachineState *machine)
238 {
239     MachineClass *mc = MACHINE_GET_CLASS(machine);
240     S390CcwMachineState *ms = S390_CCW_MACHINE(machine);
241     int ret;
242     VirtualCssBus *css_bus;
243     DeviceState *dev;
244 
245     ms->sclp = SCLP(object_new(TYPE_SCLP));
246     object_property_add_child(OBJECT(machine), TYPE_SCLP, OBJECT(ms->sclp));
247     qdev_realize_and_unref(DEVICE(ms->sclp), NULL, &error_fatal);
248 
249     /* init memory + setup max page size. Required for the CPU model */
250     s390_memory_init(machine->ram);
251 
252     /* init CPUs (incl. CPU model) early so s390_has_feature() works */
253     s390_init_cpus(machine);
254 
255     /* Need CPU model to be determined before we can set up PV */
256     if (machine->cgs) {
257         confidential_guest_kvm_init(machine->cgs, &error_fatal);
258     }
259 
260     s390_flic_init();
261 
262     /* init the SIGP facility */
263     s390_init_sigp();
264 
265     /* create AP bridge and bus(es) */
266     s390_init_ap();
267 
268     /* get a BUS */
269     css_bus = virtual_css_bus_init();
270     s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline,
271                       machine->initrd_filename,
272                       machine->firmware ?: "s390-ccw.img",
273                       "s390-netboot.img", true);
274 
275     dev = qdev_new(TYPE_S390_PCI_HOST_BRIDGE);
276     object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE,
277                               OBJECT(dev));
278     sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
279 
280     /* register hypercalls */
281     virtio_ccw_register_hcalls();
282 
283     s390_enable_css_support(s390_cpu_addr2state(0));
284 
285     ret = css_create_css_image(VIRTUAL_CSSID, true);
286     assert(ret == 0);
287 
288     css_register_vmstate();
289 
290     /* Create VirtIO network adapters */
291     s390_create_virtio_net(BUS(css_bus), mc->default_nic);
292 
293     /* init consoles */
294     if (serial_hd(0)) {
295         s390_create_sclpconsole(ms->sclp, "sclpconsole", serial_hd(0));
296     }
297     if (serial_hd(1)) {
298         s390_create_sclpconsole(ms->sclp, "sclplmconsole", serial_hd(1));
299     }
300 
301     /* init the TOD clock */
302     s390_init_tod();
303 }
304 
305 static void s390_cpu_plug(HotplugHandler *hotplug_dev,
306                         DeviceState *dev, Error **errp)
307 {
308     ERRP_GUARD();
309     MachineState *ms = MACHINE(hotplug_dev);
310     S390CPU *cpu = S390_CPU(dev);
311 
312     g_assert(!ms->possible_cpus->cpus[cpu->env.core_id].cpu);
313     ms->possible_cpus->cpus[cpu->env.core_id].cpu = CPU(dev);
314 
315     if (s390_has_topology()) {
316         s390_topology_setup_cpu(ms, cpu, errp);
317         if (*errp) {
318             return;
319         }
320     }
321 
322     if (dev->hotplugged) {
323         raise_irq_cpu_hotplug();
324     }
325 }
326 
327 static inline void s390_do_cpu_ipl(CPUState *cs, run_on_cpu_data arg)
328 {
329     S390CPU *cpu = S390_CPU(cs);
330 
331     s390_ipl_prepare_cpu(cpu);
332     s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu);
333 }
334 
335 static void s390_machine_unprotect(S390CcwMachineState *ms)
336 {
337     if (!s390_pv_vm_try_disable_async(ms)) {
338         s390_pv_vm_disable();
339     }
340     ms->pv = false;
341     migrate_del_blocker(&pv_mig_blocker);
342     ram_block_discard_disable(false);
343 }
344 
345 static int s390_machine_protect(S390CcwMachineState *ms)
346 {
347     Error *local_err = NULL;
348     int rc;
349 
350    /*
351     * Discarding of memory in RAM blocks does not work as expected with
352     * protected VMs. Sharing and unsharing pages would be required. Disable
353     * it for now, until until we have a solution to make at least Linux
354     * guests either support it (e.g., virtio-balloon) or fail gracefully.
355     */
356     rc = ram_block_discard_disable(true);
357     if (rc) {
358         error_report("protected VMs: cannot disable RAM discard");
359         return rc;
360     }
361 
362     error_setg(&pv_mig_blocker,
363                "protected VMs are currently not migratable.");
364     rc = migrate_add_blocker(&pv_mig_blocker, &local_err);
365     if (rc) {
366         ram_block_discard_disable(false);
367         error_report_err(local_err);
368         return rc;
369     }
370 
371     /* Create SE VM */
372     rc = s390_pv_vm_enable();
373     if (rc) {
374         ram_block_discard_disable(false);
375         migrate_del_blocker(&pv_mig_blocker);
376         return rc;
377     }
378 
379     ms->pv = true;
380 
381     /* Will return 0 if API is not available since it's not vital */
382     rc = s390_pv_query_info();
383     if (rc) {
384         goto out_err;
385     }
386 
387     /* Set SE header and unpack */
388     rc = s390_ipl_prepare_pv_header(&local_err);
389     if (rc) {
390         goto out_err;
391     }
392 
393     /* Decrypt image */
394     rc = s390_ipl_pv_unpack();
395     if (rc) {
396         goto out_err;
397     }
398 
399     /* Verify integrity */
400     rc = s390_pv_verify();
401     if (rc) {
402         goto out_err;
403     }
404     return rc;
405 
406 out_err:
407     if (local_err) {
408         error_report_err(local_err);
409     }
410     s390_machine_unprotect(ms);
411     return rc;
412 }
413 
414 static void s390_pv_prepare_reset(S390CcwMachineState *ms)
415 {
416     CPUState *cs;
417 
418     if (!s390_is_pv()) {
419         return;
420     }
421     /* Unsharing requires all cpus to be stopped */
422     CPU_FOREACH(cs) {
423         s390_cpu_set_state(S390_CPU_STATE_STOPPED, S390_CPU(cs));
424     }
425     s390_pv_unshare();
426     s390_pv_prep_reset();
427 }
428 
429 static void s390_machine_reset(MachineState *machine, ShutdownCause reason)
430 {
431     S390CcwMachineState *ms = S390_CCW_MACHINE(machine);
432     enum s390_reset reset_type;
433     CPUState *cs, *t;
434     S390CPU *cpu;
435 
436     /* get the reset parameters, reset them once done */
437     s390_ipl_get_reset_request(&cs, &reset_type);
438 
439     /* all CPUs are paused and synchronized at this point */
440     s390_cmma_reset();
441 
442     cpu = S390_CPU(cs);
443 
444     switch (reset_type) {
445     case S390_RESET_EXTERNAL:
446     case S390_RESET_REIPL:
447         /*
448          * Reset the subsystem which includes a AP reset. If a PV
449          * guest had APQNs attached the AP reset is a prerequisite to
450          * unprotecting since the UV checks if all APQNs are reset.
451          */
452         subsystem_reset();
453         if (s390_is_pv()) {
454             s390_machine_unprotect(ms);
455         }
456 
457         /*
458          * Device reset includes CPU clear resets so this has to be
459          * done AFTER the unprotect call above.
460          */
461         qemu_devices_reset(reason);
462         s390_crypto_reset();
463 
464         /* configure and start the ipl CPU only */
465         run_on_cpu(cs, s390_do_cpu_ipl, RUN_ON_CPU_NULL);
466         break;
467     case S390_RESET_MODIFIED_CLEAR:
468         /*
469          * Subsystem reset needs to be done before we unshare memory
470          * and lose access to VIRTIO structures in guest memory.
471          */
472         subsystem_reset();
473         s390_crypto_reset();
474         s390_pv_prepare_reset(ms);
475         CPU_FOREACH(t) {
476             run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL);
477         }
478         run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL);
479         break;
480     case S390_RESET_LOAD_NORMAL:
481         /*
482          * Subsystem reset needs to be done before we unshare memory
483          * and lose access to VIRTIO structures in guest memory.
484          */
485         subsystem_reset();
486         s390_pv_prepare_reset(ms);
487         CPU_FOREACH(t) {
488             if (t == cs) {
489                 continue;
490             }
491             run_on_cpu(t, s390_do_cpu_reset, RUN_ON_CPU_NULL);
492         }
493         run_on_cpu(cs, s390_do_cpu_initial_reset, RUN_ON_CPU_NULL);
494         run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL);
495         break;
496     case S390_RESET_PV: /* Subcode 10 */
497         subsystem_reset();
498         s390_crypto_reset();
499 
500         CPU_FOREACH(t) {
501             if (t == cs) {
502                 continue;
503             }
504             run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL);
505         }
506         run_on_cpu(cs, s390_do_cpu_reset, RUN_ON_CPU_NULL);
507 
508         if (s390_machine_protect(ms)) {
509             s390_pv_inject_reset_error(cs);
510             /*
511              * Continue after the diag308 so the guest knows something
512              * went wrong.
513              */
514             s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu);
515             return;
516         }
517 
518         run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL);
519         break;
520     default:
521         g_assert_not_reached();
522     }
523 
524     CPU_FOREACH(t) {
525         run_on_cpu(t, s390_do_cpu_set_diag318, RUN_ON_CPU_HOST_ULONG(0));
526     }
527     s390_ipl_clear_reset_request();
528 }
529 
530 static void s390_machine_device_plug(HotplugHandler *hotplug_dev,
531                                      DeviceState *dev, Error **errp)
532 {
533     if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
534         s390_cpu_plug(hotplug_dev, dev, errp);
535     }
536 }
537 
538 static void s390_machine_device_unplug_request(HotplugHandler *hotplug_dev,
539                                                DeviceState *dev, Error **errp)
540 {
541     if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
542         error_setg(errp, "CPU hot unplug not supported on this machine");
543         return;
544     }
545 }
546 
547 static CpuInstanceProperties s390_cpu_index_to_props(MachineState *ms,
548                                                      unsigned cpu_index)
549 {
550     MachineClass *mc = MACHINE_GET_CLASS(ms);
551     const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms);
552 
553     assert(cpu_index < possible_cpus->len);
554     return possible_cpus->cpus[cpu_index].props;
555 }
556 
557 static const CPUArchIdList *s390_possible_cpu_arch_ids(MachineState *ms)
558 {
559     int i;
560     unsigned int max_cpus = ms->smp.max_cpus;
561 
562     if (ms->possible_cpus) {
563         g_assert(ms->possible_cpus && ms->possible_cpus->len == max_cpus);
564         return ms->possible_cpus;
565     }
566 
567     ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) +
568                                   sizeof(CPUArchId) * max_cpus);
569     ms->possible_cpus->len = max_cpus;
570     for (i = 0; i < ms->possible_cpus->len; i++) {
571         CpuInstanceProperties *props = &ms->possible_cpus->cpus[i].props;
572 
573         ms->possible_cpus->cpus[i].type = ms->cpu_type;
574         ms->possible_cpus->cpus[i].vcpus_count = 1;
575         ms->possible_cpus->cpus[i].arch_id = i;
576 
577         props->has_core_id = true;
578         props->core_id = i;
579         props->has_socket_id = true;
580         props->socket_id = s390_std_socket(i, &ms->smp);
581         props->has_book_id = true;
582         props->book_id = s390_std_book(i, &ms->smp);
583         props->has_drawer_id = true;
584         props->drawer_id = s390_std_drawer(i, &ms->smp);
585     }
586 
587     return ms->possible_cpus;
588 }
589 
590 static HotplugHandler *s390_get_hotplug_handler(MachineState *machine,
591                                                 DeviceState *dev)
592 {
593     if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
594         return HOTPLUG_HANDLER(machine);
595     }
596     return NULL;
597 }
598 
599 static void s390_nmi(NMIState *n, int cpu_index, Error **errp)
600 {
601     CPUState *cs = qemu_get_cpu(cpu_index);
602 
603     s390_cpu_restart(S390_CPU(cs));
604 }
605 
606 static ram_addr_t s390_fixup_ram_size(ram_addr_t sz)
607 {
608     /* same logic as in sclp.c */
609     int increment_size = 20;
610     ram_addr_t newsz;
611 
612     while ((sz >> increment_size) > MAX_STORAGE_INCREMENTS) {
613         increment_size++;
614     }
615     newsz = sz >> increment_size << increment_size;
616 
617     if (sz != newsz) {
618         qemu_printf("Ram size %" PRIu64 "MB was fixed up to %" PRIu64
619                     "MB to match machine restrictions. Consider updating "
620                     "the guest definition.\n", (uint64_t) (sz / MiB),
621                     (uint64_t) (newsz / MiB));
622     }
623     return newsz;
624 }
625 
626 static inline bool machine_get_aes_key_wrap(Object *obj, Error **errp)
627 {
628     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
629 
630     return ms->aes_key_wrap;
631 }
632 
633 static inline void machine_set_aes_key_wrap(Object *obj, bool value,
634                                             Error **errp)
635 {
636     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
637 
638     ms->aes_key_wrap = value;
639 }
640 
641 static inline bool machine_get_dea_key_wrap(Object *obj, Error **errp)
642 {
643     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
644 
645     return ms->dea_key_wrap;
646 }
647 
648 static inline void machine_set_dea_key_wrap(Object *obj, bool value,
649                                             Error **errp)
650 {
651     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
652 
653     ms->dea_key_wrap = value;
654 }
655 
656 static S390CcwMachineClass *current_mc;
657 
658 /*
659  * Get the class of the s390-ccw-virtio machine that is currently in use.
660  * Note: libvirt is using the "none" machine to probe for the features of the
661  * host CPU, so in case this is called with the "none" machine, the function
662  * returns the TYPE_S390_CCW_MACHINE base class. In this base class, all the
663  * various "*_allowed" variables are enabled, so that the *_allowed() wrappers
664  * below return the correct default value for the "none" machine.
665  *
666  * Attention! Do *not* add additional new wrappers for CPU features (e.g. like
667  * the ri_allowed() wrapper) via this mechanism anymore. CPU features should
668  * be handled via the CPU models, i.e. checking with cpu_model_allowed() during
669  * CPU initialization and s390_has_feat() later should be sufficient.
670  */
671 static S390CcwMachineClass *get_machine_class(void)
672 {
673     if (unlikely(!current_mc)) {
674         /*
675         * No s390 ccw machine was instantiated, we are likely to
676         * be called for the 'none' machine. The properties will
677         * have their after-initialization values.
678         */
679         current_mc = S390_CCW_MACHINE_CLASS(
680                      object_class_by_name(TYPE_S390_CCW_MACHINE));
681     }
682     return current_mc;
683 }
684 
685 bool ri_allowed(void)
686 {
687     return get_machine_class()->ri_allowed;
688 }
689 
690 bool cpu_model_allowed(void)
691 {
692     return get_machine_class()->cpu_model_allowed;
693 }
694 
695 bool hpage_1m_allowed(void)
696 {
697     return get_machine_class()->hpage_1m_allowed;
698 }
699 
700 static void machine_get_loadparm(Object *obj, Visitor *v,
701                                  const char *name, void *opaque,
702                                  Error **errp)
703 {
704     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
705     char *str = g_strndup((char *) ms->loadparm, sizeof(ms->loadparm));
706 
707     visit_type_str(v, name, &str, errp);
708     g_free(str);
709 }
710 
711 static void machine_set_loadparm(Object *obj, Visitor *v,
712                                  const char *name, void *opaque,
713                                  Error **errp)
714 {
715     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
716     char *val;
717     int i;
718 
719     if (!visit_type_str(v, name, &val, errp)) {
720         return;
721     }
722 
723     for (i = 0; i < sizeof(ms->loadparm) && val[i]; i++) {
724         uint8_t c = qemu_toupper(val[i]); /* mimic HMC */
725 
726         if (('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || (c == '.') ||
727             (c == ' ')) {
728             ms->loadparm[i] = c;
729         } else {
730             error_setg(errp, "LOADPARM: invalid character '%c' (ASCII 0x%02x)",
731                        c, c);
732             return;
733         }
734     }
735 
736     for (; i < sizeof(ms->loadparm); i++) {
737         ms->loadparm[i] = ' '; /* pad right with spaces */
738     }
739 }
740 
741 static void ccw_machine_class_init(ObjectClass *oc, void *data)
742 {
743     MachineClass *mc = MACHINE_CLASS(oc);
744     NMIClass *nc = NMI_CLASS(oc);
745     HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc);
746     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
747 
748     s390mc->ri_allowed = true;
749     s390mc->cpu_model_allowed = true;
750     s390mc->hpage_1m_allowed = true;
751     s390mc->max_threads = 1;
752     mc->init = ccw_init;
753     mc->reset = s390_machine_reset;
754     mc->block_default_type = IF_VIRTIO;
755     mc->no_cdrom = 1;
756     mc->no_floppy = 1;
757     mc->no_parallel = 1;
758     mc->no_sdcard = 1;
759     mc->max_cpus = S390_MAX_CPUS;
760     mc->has_hotpluggable_cpus = true;
761     mc->smp_props.books_supported = true;
762     mc->smp_props.drawers_supported = true;
763     assert(!mc->get_hotplug_handler);
764     mc->get_hotplug_handler = s390_get_hotplug_handler;
765     mc->cpu_index_to_instance_props = s390_cpu_index_to_props;
766     mc->possible_cpu_arch_ids = s390_possible_cpu_arch_ids;
767     /* it is overridden with 'host' cpu *in kvm_arch_init* */
768     mc->default_cpu_type = S390_CPU_TYPE_NAME("qemu");
769     hc->plug = s390_machine_device_plug;
770     hc->unplug_request = s390_machine_device_unplug_request;
771     nc->nmi_monitor_handler = s390_nmi;
772     mc->default_ram_id = "s390.ram";
773     mc->default_nic = "virtio-net-ccw";
774 
775     object_class_property_add_bool(oc, "aes-key-wrap",
776                                    machine_get_aes_key_wrap,
777                                    machine_set_aes_key_wrap);
778     object_class_property_set_description(oc, "aes-key-wrap",
779             "enable/disable AES key wrapping using the CPACF wrapping key");
780 
781     object_class_property_add_bool(oc, "dea-key-wrap",
782                                    machine_get_dea_key_wrap,
783                                    machine_set_dea_key_wrap);
784     object_class_property_set_description(oc, "dea-key-wrap",
785             "enable/disable DEA key wrapping using the CPACF wrapping key");
786 
787     object_class_property_add(oc, "loadparm", "loadparm",
788                               machine_get_loadparm, machine_set_loadparm,
789                               NULL, NULL);
790     object_class_property_set_description(oc, "loadparm",
791             "Up to 8 chars in set of [A-Za-z0-9. ] (lower case chars converted"
792             " to upper case) to pass to machine loader, boot manager,"
793             " and guest kernel");
794 }
795 
796 static inline void s390_machine_initfn(Object *obj)
797 {
798     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
799 
800     ms->aes_key_wrap = true;
801     ms->dea_key_wrap = true;
802 }
803 
804 static const TypeInfo ccw_machine_info = {
805     .name          = TYPE_S390_CCW_MACHINE,
806     .parent        = TYPE_MACHINE,
807     .abstract      = true,
808     .instance_size = sizeof(S390CcwMachineState),
809     .instance_init = s390_machine_initfn,
810     .class_size = sizeof(S390CcwMachineClass),
811     .class_init    = ccw_machine_class_init,
812     .interfaces = (InterfaceInfo[]) {
813         { TYPE_NMI },
814         { TYPE_HOTPLUG_HANDLER},
815         { }
816     },
817 };
818 
819 #define DEFINE_CCW_MACHINE(suffix, verstr, latest)                            \
820     static void ccw_machine_##suffix##_class_init(ObjectClass *oc,            \
821                                                   void *data)                 \
822     {                                                                         \
823         MachineClass *mc = MACHINE_CLASS(oc);                                 \
824         ccw_machine_##suffix##_class_options(mc);                             \
825         mc->desc = "Virtual s390x machine (version " verstr ")";              \
826         if (latest) {                                                         \
827             mc->alias = "s390-ccw-virtio";                                    \
828             mc->is_default = true;                                            \
829         }                                                                     \
830     }                                                                         \
831     static void ccw_machine_##suffix##_instance_init(Object *obj)             \
832     {                                                                         \
833         MachineState *machine = MACHINE(obj);                                 \
834         current_mc = S390_CCW_MACHINE_CLASS(MACHINE_GET_CLASS(machine));          \
835         ccw_machine_##suffix##_instance_options(machine);                     \
836     }                                                                         \
837     static const TypeInfo ccw_machine_##suffix##_info = {                     \
838         .name = MACHINE_TYPE_NAME("s390-ccw-virtio-" verstr),                 \
839         .parent = TYPE_S390_CCW_MACHINE,                                      \
840         .class_init = ccw_machine_##suffix##_class_init,                      \
841         .instance_init = ccw_machine_##suffix##_instance_init,                \
842     };                                                                        \
843     static void ccw_machine_register_##suffix(void)                           \
844     {                                                                         \
845         type_register_static(&ccw_machine_##suffix##_info);                   \
846     }                                                                         \
847     type_init(ccw_machine_register_##suffix)
848 
849 static void ccw_machine_9_1_instance_options(MachineState *machine)
850 {
851 }
852 
853 static void ccw_machine_9_1_class_options(MachineClass *mc)
854 {
855 }
856 DEFINE_CCW_MACHINE(9_1, "9.1", true);
857 
858 static void ccw_machine_9_0_instance_options(MachineState *machine)
859 {
860     ccw_machine_9_1_instance_options(machine);
861 }
862 
863 static void ccw_machine_9_0_class_options(MachineClass *mc)
864 {
865     ccw_machine_9_1_class_options(mc);
866     compat_props_add(mc->compat_props, hw_compat_9_0, hw_compat_9_0_len);
867 }
868 DEFINE_CCW_MACHINE(9_0, "9.0", false);
869 
870 static void ccw_machine_8_2_instance_options(MachineState *machine)
871 {
872     ccw_machine_9_0_instance_options(machine);
873 }
874 
875 static void ccw_machine_8_2_class_options(MachineClass *mc)
876 {
877     ccw_machine_9_0_class_options(mc);
878     compat_props_add(mc->compat_props, hw_compat_8_2, hw_compat_8_2_len);
879 }
880 DEFINE_CCW_MACHINE(8_2, "8.2", false);
881 
882 static void ccw_machine_8_1_instance_options(MachineState *machine)
883 {
884     ccw_machine_8_2_instance_options(machine);
885 }
886 
887 static void ccw_machine_8_1_class_options(MachineClass *mc)
888 {
889     ccw_machine_8_2_class_options(mc);
890     compat_props_add(mc->compat_props, hw_compat_8_1, hw_compat_8_1_len);
891     mc->smp_props.drawers_supported = false;
892     mc->smp_props.books_supported = false;
893 }
894 DEFINE_CCW_MACHINE(8_1, "8.1", false);
895 
896 static void ccw_machine_8_0_instance_options(MachineState *machine)
897 {
898     ccw_machine_8_1_instance_options(machine);
899 }
900 
901 static void ccw_machine_8_0_class_options(MachineClass *mc)
902 {
903     ccw_machine_8_1_class_options(mc);
904     compat_props_add(mc->compat_props, hw_compat_8_0, hw_compat_8_0_len);
905 }
906 DEFINE_CCW_MACHINE(8_0, "8.0", false);
907 
908 static void ccw_machine_7_2_instance_options(MachineState *machine)
909 {
910     ccw_machine_8_0_instance_options(machine);
911 }
912 
913 static void ccw_machine_7_2_class_options(MachineClass *mc)
914 {
915     ccw_machine_8_0_class_options(mc);
916     compat_props_add(mc->compat_props, hw_compat_7_2, hw_compat_7_2_len);
917 }
918 DEFINE_CCW_MACHINE(7_2, "7.2", false);
919 
920 static void ccw_machine_7_1_instance_options(MachineState *machine)
921 {
922     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V7_1 };
923 
924     ccw_machine_7_2_instance_options(machine);
925     s390_cpudef_featoff_greater(16, 1, S390_FEAT_PAIE);
926     s390_set_qemu_cpu_model(0x8561, 15, 1, qemu_cpu_feat);
927 }
928 
929 static void ccw_machine_7_1_class_options(MachineClass *mc)
930 {
931     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
932     static GlobalProperty compat[] = {
933         { TYPE_S390_PCI_DEVICE, "interpret", "off", },
934         { TYPE_S390_PCI_DEVICE, "forwarding-assist", "off", },
935     };
936 
937     ccw_machine_7_2_class_options(mc);
938     compat_props_add(mc->compat_props, hw_compat_7_1, hw_compat_7_1_len);
939     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
940     s390mc->max_threads = S390_MAX_CPUS;
941 }
942 DEFINE_CCW_MACHINE(7_1, "7.1", false);
943 
944 static void ccw_machine_7_0_instance_options(MachineState *machine)
945 {
946     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V7_0 };
947 
948     ccw_machine_7_1_instance_options(machine);
949     s390_set_qemu_cpu_model(0x8561, 15, 1, qemu_cpu_feat);
950 }
951 
952 static void ccw_machine_7_0_class_options(MachineClass *mc)
953 {
954     ccw_machine_7_1_class_options(mc);
955     compat_props_add(mc->compat_props, hw_compat_7_0, hw_compat_7_0_len);
956 }
957 DEFINE_CCW_MACHINE(7_0, "7.0", false);
958 
959 static void ccw_machine_6_2_instance_options(MachineState *machine)
960 {
961     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_2 };
962 
963     ccw_machine_7_0_instance_options(machine);
964     s390_set_qemu_cpu_model(0x3906, 14, 2, qemu_cpu_feat);
965 }
966 
967 static void ccw_machine_6_2_class_options(MachineClass *mc)
968 {
969     ccw_machine_7_0_class_options(mc);
970     compat_props_add(mc->compat_props, hw_compat_6_2, hw_compat_6_2_len);
971 }
972 DEFINE_CCW_MACHINE(6_2, "6.2", false);
973 
974 static void ccw_machine_6_1_instance_options(MachineState *machine)
975 {
976     ccw_machine_6_2_instance_options(machine);
977     s390_cpudef_featoff_greater(16, 1, S390_FEAT_NNPA);
978     s390_cpudef_featoff_greater(16, 1, S390_FEAT_VECTOR_PACKED_DECIMAL_ENH2);
979     s390_cpudef_featoff_greater(16, 1, S390_FEAT_BEAR_ENH);
980     s390_cpudef_featoff_greater(16, 1, S390_FEAT_RDP);
981     s390_cpudef_featoff_greater(16, 1, S390_FEAT_PAI);
982 }
983 
984 static void ccw_machine_6_1_class_options(MachineClass *mc)
985 {
986     ccw_machine_6_2_class_options(mc);
987     compat_props_add(mc->compat_props, hw_compat_6_1, hw_compat_6_1_len);
988     mc->smp_props.prefer_sockets = true;
989 }
990 DEFINE_CCW_MACHINE(6_1, "6.1", false);
991 
992 static void ccw_machine_6_0_instance_options(MachineState *machine)
993 {
994     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_0 };
995 
996     ccw_machine_6_1_instance_options(machine);
997     s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat);
998 }
999 
1000 static void ccw_machine_6_0_class_options(MachineClass *mc)
1001 {
1002     ccw_machine_6_1_class_options(mc);
1003     compat_props_add(mc->compat_props, hw_compat_6_0, hw_compat_6_0_len);
1004 }
1005 DEFINE_CCW_MACHINE(6_0, "6.0", false);
1006 
1007 static void ccw_machine_5_2_instance_options(MachineState *machine)
1008 {
1009     ccw_machine_6_0_instance_options(machine);
1010 }
1011 
1012 static void ccw_machine_5_2_class_options(MachineClass *mc)
1013 {
1014     ccw_machine_6_0_class_options(mc);
1015     compat_props_add(mc->compat_props, hw_compat_5_2, hw_compat_5_2_len);
1016 }
1017 DEFINE_CCW_MACHINE(5_2, "5.2", false);
1018 
1019 static void ccw_machine_5_1_instance_options(MachineState *machine)
1020 {
1021     ccw_machine_5_2_instance_options(machine);
1022 }
1023 
1024 static void ccw_machine_5_1_class_options(MachineClass *mc)
1025 {
1026     ccw_machine_5_2_class_options(mc);
1027     compat_props_add(mc->compat_props, hw_compat_5_1, hw_compat_5_1_len);
1028 }
1029 DEFINE_CCW_MACHINE(5_1, "5.1", false);
1030 
1031 static void ccw_machine_5_0_instance_options(MachineState *machine)
1032 {
1033     ccw_machine_5_1_instance_options(machine);
1034 }
1035 
1036 static void ccw_machine_5_0_class_options(MachineClass *mc)
1037 {
1038     ccw_machine_5_1_class_options(mc);
1039     compat_props_add(mc->compat_props, hw_compat_5_0, hw_compat_5_0_len);
1040 }
1041 DEFINE_CCW_MACHINE(5_0, "5.0", false);
1042 
1043 static void ccw_machine_4_2_instance_options(MachineState *machine)
1044 {
1045     ccw_machine_5_0_instance_options(machine);
1046 }
1047 
1048 static void ccw_machine_4_2_class_options(MachineClass *mc)
1049 {
1050     ccw_machine_5_0_class_options(mc);
1051     mc->fixup_ram_size = s390_fixup_ram_size;
1052     compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len);
1053 }
1054 DEFINE_CCW_MACHINE(4_2, "4.2", false);
1055 
1056 static void ccw_machine_4_1_instance_options(MachineState *machine)
1057 {
1058     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_1 };
1059     ccw_machine_4_2_instance_options(machine);
1060     s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat);
1061 }
1062 
1063 static void ccw_machine_4_1_class_options(MachineClass *mc)
1064 {
1065     ccw_machine_4_2_class_options(mc);
1066     compat_props_add(mc->compat_props, hw_compat_4_1, hw_compat_4_1_len);
1067 }
1068 DEFINE_CCW_MACHINE(4_1, "4.1", false);
1069 
1070 static void ccw_machine_4_0_instance_options(MachineState *machine)
1071 {
1072     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_0 };
1073     ccw_machine_4_1_instance_options(machine);
1074     s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat);
1075 }
1076 
1077 static void ccw_machine_4_0_class_options(MachineClass *mc)
1078 {
1079     ccw_machine_4_1_class_options(mc);
1080     compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len);
1081 }
1082 DEFINE_CCW_MACHINE(4_0, "4.0", false);
1083 
1084 static void ccw_machine_3_1_instance_options(MachineState *machine)
1085 {
1086     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V3_1 };
1087     ccw_machine_4_0_instance_options(machine);
1088     s390_cpudef_featoff_greater(14, 1, S390_FEAT_MULTIPLE_EPOCH);
1089     s390_cpudef_group_featoff_greater(14, 1, S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF);
1090     s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat);
1091 }
1092 
1093 static void ccw_machine_3_1_class_options(MachineClass *mc)
1094 {
1095     ccw_machine_4_0_class_options(mc);
1096     compat_props_add(mc->compat_props, hw_compat_3_1, hw_compat_3_1_len);
1097 }
1098 DEFINE_CCW_MACHINE(3_1, "3.1", false);
1099 
1100 static void ccw_machine_3_0_instance_options(MachineState *machine)
1101 {
1102     ccw_machine_3_1_instance_options(machine);
1103 }
1104 
1105 static void ccw_machine_3_0_class_options(MachineClass *mc)
1106 {
1107     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
1108 
1109     s390mc->hpage_1m_allowed = false;
1110     ccw_machine_3_1_class_options(mc);
1111     compat_props_add(mc->compat_props, hw_compat_3_0, hw_compat_3_0_len);
1112 }
1113 DEFINE_CCW_MACHINE(3_0, "3.0", false);
1114 
1115 static void ccw_machine_2_12_instance_options(MachineState *machine)
1116 {
1117     ccw_machine_3_0_instance_options(machine);
1118     s390_cpudef_featoff_greater(11, 1, S390_FEAT_PPA15);
1119     s390_cpudef_featoff_greater(11, 1, S390_FEAT_BPB);
1120 }
1121 
1122 static void ccw_machine_2_12_class_options(MachineClass *mc)
1123 {
1124     ccw_machine_3_0_class_options(mc);
1125     compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len);
1126 }
1127 DEFINE_CCW_MACHINE(2_12, "2.12", false);
1128 
1129 static void ccw_machine_2_11_instance_options(MachineState *machine)
1130 {
1131     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 };
1132     ccw_machine_2_12_instance_options(machine);
1133 
1134     /* before 2.12 we emulated the very first z900 */
1135     s390_set_qemu_cpu_model(0x2064, 7, 1, qemu_cpu_feat);
1136 }
1137 
1138 static void ccw_machine_2_11_class_options(MachineClass *mc)
1139 {
1140     static GlobalProperty compat[] = {
1141         { TYPE_SCLP_EVENT_FACILITY, "allow_all_mask_sizes", "off", },
1142     };
1143 
1144     ccw_machine_2_12_class_options(mc);
1145     compat_props_add(mc->compat_props, hw_compat_2_11, hw_compat_2_11_len);
1146     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
1147 }
1148 DEFINE_CCW_MACHINE(2_11, "2.11", false);
1149 
1150 static void ccw_machine_2_10_instance_options(MachineState *machine)
1151 {
1152     ccw_machine_2_11_instance_options(machine);
1153 }
1154 
1155 static void ccw_machine_2_10_class_options(MachineClass *mc)
1156 {
1157     ccw_machine_2_11_class_options(mc);
1158     compat_props_add(mc->compat_props, hw_compat_2_10, hw_compat_2_10_len);
1159 }
1160 DEFINE_CCW_MACHINE(2_10, "2.10", false);
1161 
1162 static void ccw_machine_2_9_instance_options(MachineState *machine)
1163 {
1164     ccw_machine_2_10_instance_options(machine);
1165     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ESOP);
1166     s390_cpudef_featoff_greater(12, 1, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2);
1167     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ZPCI);
1168     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_INT_SUPPRESSION);
1169     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_EVENT_NOTIFICATION);
1170 }
1171 
1172 static void ccw_machine_2_9_class_options(MachineClass *mc)
1173 {
1174     static GlobalProperty compat[] = {
1175         { TYPE_S390_STATTRIB, "migration-enabled", "off", },
1176         { TYPE_S390_FLIC_COMMON, "migration-enabled", "off", },
1177     };
1178 
1179     ccw_machine_2_10_class_options(mc);
1180     compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len);
1181     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
1182     css_migration_enabled = false;
1183 }
1184 DEFINE_CCW_MACHINE(2_9, "2.9", false);
1185 
1186 static void ccw_machine_2_8_instance_options(MachineState *machine)
1187 {
1188     ccw_machine_2_9_instance_options(machine);
1189 }
1190 
1191 static void ccw_machine_2_8_class_options(MachineClass *mc)
1192 {
1193     static GlobalProperty compat[] = {
1194         { TYPE_S390_FLIC_COMMON, "adapter_routes_max_batch", "64", },
1195     };
1196 
1197     ccw_machine_2_9_class_options(mc);
1198     compat_props_add(mc->compat_props, hw_compat_2_8, hw_compat_2_8_len);
1199     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
1200 }
1201 DEFINE_CCW_MACHINE(2_8, "2.8", false);
1202 
1203 static void ccw_machine_2_7_instance_options(MachineState *machine)
1204 {
1205     ccw_machine_2_8_instance_options(machine);
1206 }
1207 
1208 static void ccw_machine_2_7_class_options(MachineClass *mc)
1209 {
1210     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
1211 
1212     s390mc->cpu_model_allowed = false;
1213     ccw_machine_2_8_class_options(mc);
1214     compat_props_add(mc->compat_props, hw_compat_2_7, hw_compat_2_7_len);
1215 }
1216 DEFINE_CCW_MACHINE(2_7, "2.7", false);
1217 
1218 static void ccw_machine_2_6_instance_options(MachineState *machine)
1219 {
1220     ccw_machine_2_7_instance_options(machine);
1221 }
1222 
1223 static void ccw_machine_2_6_class_options(MachineClass *mc)
1224 {
1225     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
1226     static GlobalProperty compat[] = {
1227         { TYPE_S390_IPL, "iplbext_migration", "off", },
1228          { TYPE_VIRTUAL_CSS_BRIDGE, "css_dev_path", "off", },
1229     };
1230 
1231     s390mc->ri_allowed = false;
1232     ccw_machine_2_7_class_options(mc);
1233     compat_props_add(mc->compat_props, hw_compat_2_6, hw_compat_2_6_len);
1234     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
1235 }
1236 DEFINE_CCW_MACHINE(2_6, "2.6", false);
1237 
1238 static void ccw_machine_2_5_instance_options(MachineState *machine)
1239 {
1240     ccw_machine_2_6_instance_options(machine);
1241 }
1242 
1243 static void ccw_machine_2_5_class_options(MachineClass *mc)
1244 {
1245     ccw_machine_2_6_class_options(mc);
1246     compat_props_add(mc->compat_props, hw_compat_2_5, hw_compat_2_5_len);
1247 }
1248 DEFINE_CCW_MACHINE(2_5, "2.5", false);
1249 
1250 static void ccw_machine_2_4_instance_options(MachineState *machine)
1251 {
1252     ccw_machine_2_5_instance_options(machine);
1253 }
1254 
1255 static void ccw_machine_2_4_class_options(MachineClass *mc)
1256 {
1257     static GlobalProperty compat[] = {
1258         { TYPE_S390_SKEYS, "migration-enabled", "off", },
1259         { "virtio-blk-ccw", "max_revision", "0", },
1260         { "virtio-balloon-ccw", "max_revision", "0", },
1261         { "virtio-serial-ccw", "max_revision", "0", },
1262         { "virtio-9p-ccw", "max_revision", "0", },
1263         { "virtio-rng-ccw", "max_revision", "0", },
1264         { "virtio-net-ccw", "max_revision", "0", },
1265         { "virtio-scsi-ccw", "max_revision", "0", },
1266         { "vhost-scsi-ccw", "max_revision", "0", },
1267     };
1268 
1269     ccw_machine_2_5_class_options(mc);
1270     compat_props_add(mc->compat_props, hw_compat_2_4, hw_compat_2_4_len);
1271     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
1272 }
1273 DEFINE_CCW_MACHINE(2_4, "2.4", false);
1274 
1275 static void ccw_machine_register_types(void)
1276 {
1277     type_register_static(&ccw_machine_info);
1278 }
1279 
1280 type_init(ccw_machine_register_types)
1281