xref: /qemu/hw/s390x/s390-virtio-ccw.c (revision 73b49878)
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 "hw/s390x/s390-virtio-hcall.h"
18 #include "hw/s390x/sclp.h"
19 #include "hw/s390x/s390_flic.h"
20 #include "hw/s390x/ioinst.h"
21 #include "hw/s390x/css.h"
22 #include "virtio-ccw.h"
23 #include "qemu/config-file.h"
24 #include "qemu/ctype.h"
25 #include "qemu/error-report.h"
26 #include "qemu/option.h"
27 #include "qemu/qemu-print.h"
28 #include "qemu/units.h"
29 #include "hw/s390x/s390-pci-bus.h"
30 #include "sysemu/reset.h"
31 #include "hw/s390x/storage-keys.h"
32 #include "hw/s390x/storage-attributes.h"
33 #include "hw/s390x/event-facility.h"
34 #include "ipl.h"
35 #include "hw/s390x/s390-virtio-ccw.h"
36 #include "hw/s390x/css-bridge.h"
37 #include "hw/s390x/ap-bridge.h"
38 #include "migration/register.h"
39 #include "cpu_models.h"
40 #include "hw/nmi.h"
41 #include "hw/qdev-properties.h"
42 #include "hw/s390x/tod.h"
43 #include "sysemu/sysemu.h"
44 #include "sysemu/cpus.h"
45 #include "target/s390x/kvm/pv.h"
46 #include "migration/blocker.h"
47 #include "qapi/visitor.h"
48 #include "hw/s390x/cpu-topology.h"
49 
50 static Error *pv_mig_blocker;
51 
52 S390CPU *s390_cpu_addr2state(uint16_t cpu_addr)
53 {
54     static MachineState *ms;
55 
56     if (!ms) {
57         ms = MACHINE(qdev_get_machine());
58         g_assert(ms->possible_cpus);
59     }
60 
61     /* CPU address corresponds to the core_id and the index */
62     if (cpu_addr >= ms->possible_cpus->len) {
63         return NULL;
64     }
65     return S390_CPU(ms->possible_cpus->cpus[cpu_addr].cpu);
66 }
67 
68 static S390CPU *s390x_new_cpu(const char *typename, uint32_t core_id,
69                               Error **errp)
70 {
71     S390CPU *cpu = S390_CPU(object_new(typename));
72     S390CPU *ret = NULL;
73 
74     if (!object_property_set_int(OBJECT(cpu), "core-id", core_id, errp)) {
75         goto out;
76     }
77     if (!qdev_realize(DEVICE(cpu), NULL, errp)) {
78         goto out;
79     }
80     ret = cpu;
81 
82 out:
83     object_unref(OBJECT(cpu));
84     return ret;
85 }
86 
87 static void s390_init_cpus(MachineState *machine)
88 {
89     MachineClass *mc = MACHINE_GET_CLASS(machine);
90     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
91     int i;
92 
93     if (machine->smp.threads > s390mc->max_threads) {
94         error_report("S390 does not support more than %d threads.",
95                      s390mc->max_threads);
96         exit(1);
97     }
98 
99     /* initialize possible_cpus */
100     mc->possible_cpu_arch_ids(machine);
101 
102     for (i = 0; i < machine->smp.cpus; i++) {
103         s390x_new_cpu(machine->cpu_type, i, &error_fatal);
104     }
105 }
106 
107 static const char *const reset_dev_types[] = {
108     TYPE_VIRTUAL_CSS_BRIDGE,
109     "s390-sclp-event-facility",
110     "s390-flic",
111     "diag288",
112     TYPE_S390_PCI_HOST_BRIDGE,
113     TYPE_AP_BRIDGE,
114 };
115 
116 static void subsystem_reset(void)
117 {
118     DeviceState *dev;
119     int i;
120 
121     /*
122      * ISM firmware is sensitive to unexpected changes to the IOMMU, which can
123      * occur during reset of the vfio-pci device (unmap of entire aperture).
124      * Ensure any passthrough ISM devices are reset now, while CPUs are paused
125      * but before vfio-pci cleanup occurs.
126      */
127     s390_pci_ism_reset();
128 
129     for (i = 0; i < ARRAY_SIZE(reset_dev_types); i++) {
130         dev = DEVICE(object_resolve_path_type("", reset_dev_types[i], NULL));
131         if (dev) {
132             device_cold_reset(dev);
133         }
134     }
135     if (s390_has_topology()) {
136         s390_topology_reset();
137     }
138 }
139 
140 static int virtio_ccw_hcall_notify(const uint64_t *args)
141 {
142     uint64_t subch_id = args[0];
143     uint64_t queue = args[1];
144     SubchDev *sch;
145     int cssid, ssid, schid, m;
146 
147     if (ioinst_disassemble_sch_ident(subch_id, &m, &cssid, &ssid, &schid)) {
148         return -EINVAL;
149     }
150     sch = css_find_subch(m, cssid, ssid, schid);
151     if (!sch || !css_subch_visible(sch)) {
152         return -EINVAL;
153     }
154     if (queue >= VIRTIO_QUEUE_MAX) {
155         return -EINVAL;
156     }
157     virtio_queue_notify(virtio_ccw_get_vdev(sch), queue);
158     return 0;
159 
160 }
161 
162 static int virtio_ccw_hcall_early_printk(const uint64_t *args)
163 {
164     uint64_t mem = args[0];
165     MachineState *ms = MACHINE(qdev_get_machine());
166 
167     if (mem < ms->ram_size) {
168         /* Early printk */
169         return 0;
170     }
171     return -EINVAL;
172 }
173 
174 static void virtio_ccw_register_hcalls(void)
175 {
176     s390_register_virtio_hypercall(KVM_S390_VIRTIO_CCW_NOTIFY,
177                                    virtio_ccw_hcall_notify);
178     /* Tolerate early printk. */
179     s390_register_virtio_hypercall(KVM_S390_VIRTIO_NOTIFY,
180                                    virtio_ccw_hcall_early_printk);
181 }
182 
183 static void s390_memory_init(MemoryRegion *ram)
184 {
185     MemoryRegion *sysmem = get_system_memory();
186 
187     /* allocate RAM for core */
188     memory_region_add_subregion(sysmem, 0, ram);
189 
190     /*
191      * Configure the maximum page size. As no memory devices were created
192      * yet, this is the page size of initial memory only.
193      */
194     s390_set_max_pagesize(qemu_maxrampagesize(), &error_fatal);
195     /* Initialize storage key device */
196     s390_skeys_init();
197     /* Initialize storage attributes device */
198     s390_stattrib_init();
199 }
200 
201 static void s390_init_ipl_dev(const char *kernel_filename,
202                               const char *kernel_cmdline,
203                               const char *initrd_filename, const char *firmware,
204                               const char *netboot_fw, bool enforce_bios)
205 {
206     Object *new = object_new(TYPE_S390_IPL);
207     DeviceState *dev = DEVICE(new);
208     char *netboot_fw_prop;
209 
210     if (kernel_filename) {
211         qdev_prop_set_string(dev, "kernel", kernel_filename);
212     }
213     if (initrd_filename) {
214         qdev_prop_set_string(dev, "initrd", initrd_filename);
215     }
216     qdev_prop_set_string(dev, "cmdline", kernel_cmdline);
217     qdev_prop_set_string(dev, "firmware", firmware);
218     qdev_prop_set_bit(dev, "enforce_bios", enforce_bios);
219     netboot_fw_prop = object_property_get_str(new, "netboot_fw", &error_abort);
220     if (!strlen(netboot_fw_prop)) {
221         qdev_prop_set_string(dev, "netboot_fw", netboot_fw);
222     }
223     g_free(netboot_fw_prop);
224     object_property_add_child(qdev_get_machine(), TYPE_S390_IPL,
225                               new);
226     object_unref(new);
227     qdev_realize(dev, NULL, &error_fatal);
228 }
229 
230 static void s390_create_virtio_net(BusState *bus, const char *name)
231 {
232     int i;
233 
234     for (i = 0; i < nb_nics; i++) {
235         NICInfo *nd = &nd_table[i];
236         DeviceState *dev;
237 
238         qemu_check_nic_model(nd, "virtio");
239 
240         dev = qdev_new(name);
241         qdev_set_nic_properties(dev, nd);
242         qdev_realize_and_unref(dev, bus, &error_fatal);
243     }
244 }
245 
246 static void s390_create_sclpconsole(const char *type, Chardev *chardev)
247 {
248     DeviceState *dev;
249 
250     dev = qdev_new(type);
251     qdev_prop_set_chr(dev, "chardev", chardev);
252     qdev_realize_and_unref(dev, sclp_get_event_facility_bus(), &error_fatal);
253 }
254 
255 static void ccw_init(MachineState *machine)
256 {
257     MachineClass *mc = MACHINE_GET_CLASS(machine);
258     int ret;
259     VirtualCssBus *css_bus;
260     DeviceState *dev;
261 
262     s390_sclp_init();
263     /* init memory + setup max page size. Required for the CPU model */
264     s390_memory_init(machine->ram);
265 
266     /* init CPUs (incl. CPU model) early so s390_has_feature() works */
267     s390_init_cpus(machine);
268 
269     /* Need CPU model to be determined before we can set up PV */
270     s390_pv_init(machine->cgs, &error_fatal);
271 
272     s390_flic_init();
273 
274     /* init the SIGP facility */
275     s390_init_sigp();
276 
277     /* create AP bridge and bus(es) */
278     s390_init_ap();
279 
280     /* get a BUS */
281     css_bus = virtual_css_bus_init();
282     s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline,
283                       machine->initrd_filename,
284                       machine->firmware ?: "s390-ccw.img",
285                       "s390-netboot.img", true);
286 
287     dev = qdev_new(TYPE_S390_PCI_HOST_BRIDGE);
288     object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE,
289                               OBJECT(dev));
290     sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
291 
292     /* register hypercalls */
293     virtio_ccw_register_hcalls();
294 
295     s390_enable_css_support(s390_cpu_addr2state(0));
296 
297     ret = css_create_css_image(VIRTUAL_CSSID, true);
298 
299     assert(ret == 0);
300     if (css_migration_enabled()) {
301         css_register_vmstate();
302     }
303 
304     /* Create VirtIO network adapters */
305     s390_create_virtio_net(BUS(css_bus), mc->default_nic);
306 
307     /* init consoles */
308     if (serial_hd(0)) {
309         s390_create_sclpconsole("sclpconsole", serial_hd(0));
310     }
311     if (serial_hd(1)) {
312         s390_create_sclpconsole("sclplmconsole", serial_hd(1));
313     }
314 
315     /* init the TOD clock */
316     s390_init_tod();
317 }
318 
319 static void s390_cpu_plug(HotplugHandler *hotplug_dev,
320                         DeviceState *dev, Error **errp)
321 {
322     MachineState *ms = MACHINE(hotplug_dev);
323     S390CPU *cpu = S390_CPU(dev);
324     ERRP_GUARD();
325 
326     g_assert(!ms->possible_cpus->cpus[cpu->env.core_id].cpu);
327     ms->possible_cpus->cpus[cpu->env.core_id].cpu = OBJECT(dev);
328 
329     if (s390_has_topology()) {
330         s390_topology_setup_cpu(ms, cpu, errp);
331         if (*errp) {
332             return;
333         }
334     }
335 
336     if (dev->hotplugged) {
337         raise_irq_cpu_hotplug();
338     }
339 }
340 
341 static inline void s390_do_cpu_ipl(CPUState *cs, run_on_cpu_data arg)
342 {
343     S390CPU *cpu = S390_CPU(cs);
344 
345     s390_ipl_prepare_cpu(cpu);
346     s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu);
347 }
348 
349 static void s390_machine_unprotect(S390CcwMachineState *ms)
350 {
351     if (!s390_pv_vm_try_disable_async(ms)) {
352         s390_pv_vm_disable();
353     }
354     ms->pv = false;
355     migrate_del_blocker(&pv_mig_blocker);
356     ram_block_discard_disable(false);
357 }
358 
359 static int s390_machine_protect(S390CcwMachineState *ms)
360 {
361     Error *local_err = NULL;
362     int rc;
363 
364    /*
365     * Discarding of memory in RAM blocks does not work as expected with
366     * protected VMs. Sharing and unsharing pages would be required. Disable
367     * it for now, until until we have a solution to make at least Linux
368     * guests either support it (e.g., virtio-balloon) or fail gracefully.
369     */
370     rc = ram_block_discard_disable(true);
371     if (rc) {
372         error_report("protected VMs: cannot disable RAM discard");
373         return rc;
374     }
375 
376     error_setg(&pv_mig_blocker,
377                "protected VMs are currently not migratable.");
378     rc = migrate_add_blocker(&pv_mig_blocker, &local_err);
379     if (rc) {
380         ram_block_discard_disable(false);
381         error_report_err(local_err);
382         return rc;
383     }
384 
385     /* Create SE VM */
386     rc = s390_pv_vm_enable();
387     if (rc) {
388         ram_block_discard_disable(false);
389         migrate_del_blocker(&pv_mig_blocker);
390         return rc;
391     }
392 
393     ms->pv = true;
394 
395     /* Will return 0 if API is not available since it's not vital */
396     rc = s390_pv_query_info();
397     if (rc) {
398         goto out_err;
399     }
400 
401     /* Set SE header and unpack */
402     rc = s390_ipl_prepare_pv_header(&local_err);
403     if (rc) {
404         goto out_err;
405     }
406 
407     /* Decrypt image */
408     rc = s390_ipl_pv_unpack();
409     if (rc) {
410         goto out_err;
411     }
412 
413     /* Verify integrity */
414     rc = s390_pv_verify();
415     if (rc) {
416         goto out_err;
417     }
418     return rc;
419 
420 out_err:
421     if (local_err) {
422         error_report_err(local_err);
423     }
424     s390_machine_unprotect(ms);
425     return rc;
426 }
427 
428 static void s390_pv_prepare_reset(S390CcwMachineState *ms)
429 {
430     CPUState *cs;
431 
432     if (!s390_is_pv()) {
433         return;
434     }
435     /* Unsharing requires all cpus to be stopped */
436     CPU_FOREACH(cs) {
437         s390_cpu_set_state(S390_CPU_STATE_STOPPED, S390_CPU(cs));
438     }
439     s390_pv_unshare();
440     s390_pv_prep_reset();
441 }
442 
443 static void s390_machine_reset(MachineState *machine, ShutdownCause reason)
444 {
445     S390CcwMachineState *ms = S390_CCW_MACHINE(machine);
446     enum s390_reset reset_type;
447     CPUState *cs, *t;
448     S390CPU *cpu;
449 
450     /* get the reset parameters, reset them once done */
451     s390_ipl_get_reset_request(&cs, &reset_type);
452 
453     /* all CPUs are paused and synchronized at this point */
454     s390_cmma_reset();
455 
456     cpu = S390_CPU(cs);
457 
458     switch (reset_type) {
459     case S390_RESET_EXTERNAL:
460     case S390_RESET_REIPL:
461         /*
462          * Reset the subsystem which includes a AP reset. If a PV
463          * guest had APQNs attached the AP reset is a prerequisite to
464          * unprotecting since the UV checks if all APQNs are reset.
465          */
466         subsystem_reset();
467         if (s390_is_pv()) {
468             s390_machine_unprotect(ms);
469         }
470 
471         /*
472          * Device reset includes CPU clear resets so this has to be
473          * done AFTER the unprotect call above.
474          */
475         qemu_devices_reset(reason);
476         s390_crypto_reset();
477 
478         /* configure and start the ipl CPU only */
479         run_on_cpu(cs, s390_do_cpu_ipl, RUN_ON_CPU_NULL);
480         break;
481     case S390_RESET_MODIFIED_CLEAR:
482         /*
483          * Subsystem reset needs to be done before we unshare memory
484          * and lose access to VIRTIO structures in guest memory.
485          */
486         subsystem_reset();
487         s390_crypto_reset();
488         s390_pv_prepare_reset(ms);
489         CPU_FOREACH(t) {
490             run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL);
491         }
492         run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL);
493         break;
494     case S390_RESET_LOAD_NORMAL:
495         /*
496          * Subsystem reset needs to be done before we unshare memory
497          * and lose access to VIRTIO structures in guest memory.
498          */
499         subsystem_reset();
500         s390_pv_prepare_reset(ms);
501         CPU_FOREACH(t) {
502             if (t == cs) {
503                 continue;
504             }
505             run_on_cpu(t, s390_do_cpu_reset, RUN_ON_CPU_NULL);
506         }
507         run_on_cpu(cs, s390_do_cpu_initial_reset, RUN_ON_CPU_NULL);
508         run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL);
509         break;
510     case S390_RESET_PV: /* Subcode 10 */
511         subsystem_reset();
512         s390_crypto_reset();
513 
514         CPU_FOREACH(t) {
515             if (t == cs) {
516                 continue;
517             }
518             run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL);
519         }
520         run_on_cpu(cs, s390_do_cpu_reset, RUN_ON_CPU_NULL);
521 
522         if (s390_machine_protect(ms)) {
523             s390_pv_inject_reset_error(cs);
524             /*
525              * Continue after the diag308 so the guest knows something
526              * went wrong.
527              */
528             s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu);
529             return;
530         }
531 
532         run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL);
533         break;
534     default:
535         g_assert_not_reached();
536     }
537 
538     CPU_FOREACH(t) {
539         run_on_cpu(t, s390_do_cpu_set_diag318, RUN_ON_CPU_HOST_ULONG(0));
540     }
541     s390_ipl_clear_reset_request();
542 }
543 
544 static void s390_machine_device_plug(HotplugHandler *hotplug_dev,
545                                      DeviceState *dev, Error **errp)
546 {
547     if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
548         s390_cpu_plug(hotplug_dev, dev, errp);
549     }
550 }
551 
552 static void s390_machine_device_unplug_request(HotplugHandler *hotplug_dev,
553                                                DeviceState *dev, Error **errp)
554 {
555     if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
556         error_setg(errp, "CPU hot unplug not supported on this machine");
557         return;
558     }
559 }
560 
561 static CpuInstanceProperties s390_cpu_index_to_props(MachineState *ms,
562                                                      unsigned cpu_index)
563 {
564     MachineClass *mc = MACHINE_GET_CLASS(ms);
565     const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms);
566 
567     assert(cpu_index < possible_cpus->len);
568     return possible_cpus->cpus[cpu_index].props;
569 }
570 
571 static const CPUArchIdList *s390_possible_cpu_arch_ids(MachineState *ms)
572 {
573     int i;
574     unsigned int max_cpus = ms->smp.max_cpus;
575 
576     if (ms->possible_cpus) {
577         g_assert(ms->possible_cpus && ms->possible_cpus->len == max_cpus);
578         return ms->possible_cpus;
579     }
580 
581     ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) +
582                                   sizeof(CPUArchId) * max_cpus);
583     ms->possible_cpus->len = max_cpus;
584     for (i = 0; i < ms->possible_cpus->len; i++) {
585         CpuInstanceProperties *props = &ms->possible_cpus->cpus[i].props;
586 
587         ms->possible_cpus->cpus[i].type = ms->cpu_type;
588         ms->possible_cpus->cpus[i].vcpus_count = 1;
589         ms->possible_cpus->cpus[i].arch_id = i;
590 
591         props->has_core_id = true;
592         props->core_id = i;
593         props->has_socket_id = true;
594         props->socket_id = s390_std_socket(i, &ms->smp);
595         props->has_book_id = true;
596         props->book_id = s390_std_book(i, &ms->smp);
597         props->has_drawer_id = true;
598         props->drawer_id = s390_std_drawer(i, &ms->smp);
599     }
600 
601     return ms->possible_cpus;
602 }
603 
604 static HotplugHandler *s390_get_hotplug_handler(MachineState *machine,
605                                                 DeviceState *dev)
606 {
607     if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
608         return HOTPLUG_HANDLER(machine);
609     }
610     return NULL;
611 }
612 
613 static void s390_nmi(NMIState *n, int cpu_index, Error **errp)
614 {
615     CPUState *cs = qemu_get_cpu(cpu_index);
616 
617     s390_cpu_restart(S390_CPU(cs));
618 }
619 
620 static ram_addr_t s390_fixup_ram_size(ram_addr_t sz)
621 {
622     /* same logic as in sclp.c */
623     int increment_size = 20;
624     ram_addr_t newsz;
625 
626     while ((sz >> increment_size) > MAX_STORAGE_INCREMENTS) {
627         increment_size++;
628     }
629     newsz = sz >> increment_size << increment_size;
630 
631     if (sz != newsz) {
632         qemu_printf("Ram size %" PRIu64 "MB was fixed up to %" PRIu64
633                     "MB to match machine restrictions. Consider updating "
634                     "the guest definition.\n", (uint64_t) (sz / MiB),
635                     (uint64_t) (newsz / MiB));
636     }
637     return newsz;
638 }
639 
640 static inline bool machine_get_aes_key_wrap(Object *obj, Error **errp)
641 {
642     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
643 
644     return ms->aes_key_wrap;
645 }
646 
647 static inline void machine_set_aes_key_wrap(Object *obj, bool value,
648                                             Error **errp)
649 {
650     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
651 
652     ms->aes_key_wrap = value;
653 }
654 
655 static inline bool machine_get_dea_key_wrap(Object *obj, Error **errp)
656 {
657     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
658 
659     return ms->dea_key_wrap;
660 }
661 
662 static inline void machine_set_dea_key_wrap(Object *obj, bool value,
663                                             Error **errp)
664 {
665     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
666 
667     ms->dea_key_wrap = value;
668 }
669 
670 static S390CcwMachineClass *current_mc;
671 
672 /*
673  * Get the class of the s390-ccw-virtio machine that is currently in use.
674  * Note: libvirt is using the "none" machine to probe for the features of the
675  * host CPU, so in case this is called with the "none" machine, the function
676  * returns the TYPE_S390_CCW_MACHINE base class. In this base class, all the
677  * various "*_allowed" variables are enabled, so that the *_allowed() wrappers
678  * below return the correct default value for the "none" machine.
679  *
680  * Attention! Do *not* add additional new wrappers for CPU features (e.g. like
681  * the ri_allowed() wrapper) via this mechanism anymore. CPU features should
682  * be handled via the CPU models, i.e. checking with cpu_model_allowed() during
683  * CPU initialization and s390_has_feat() later should be sufficient.
684  */
685 static S390CcwMachineClass *get_machine_class(void)
686 {
687     if (unlikely(!current_mc)) {
688         /*
689         * No s390 ccw machine was instantiated, we are likely to
690         * be called for the 'none' machine. The properties will
691         * have their after-initialization values.
692         */
693         current_mc = S390_CCW_MACHINE_CLASS(
694                      object_class_by_name(TYPE_S390_CCW_MACHINE));
695     }
696     return current_mc;
697 }
698 
699 bool ri_allowed(void)
700 {
701     return get_machine_class()->ri_allowed;
702 }
703 
704 bool cpu_model_allowed(void)
705 {
706     return get_machine_class()->cpu_model_allowed;
707 }
708 
709 bool hpage_1m_allowed(void)
710 {
711     return get_machine_class()->hpage_1m_allowed;
712 }
713 
714 static void machine_get_loadparm(Object *obj, Visitor *v,
715                                  const char *name, void *opaque,
716                                  Error **errp)
717 {
718     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
719     char *str = g_strndup((char *) ms->loadparm, sizeof(ms->loadparm));
720 
721     visit_type_str(v, name, &str, errp);
722     g_free(str);
723 }
724 
725 static void machine_set_loadparm(Object *obj, Visitor *v,
726                                  const char *name, void *opaque,
727                                  Error **errp)
728 {
729     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
730     char *val;
731     int i;
732 
733     if (!visit_type_str(v, name, &val, errp)) {
734         return;
735     }
736 
737     for (i = 0; i < sizeof(ms->loadparm) && val[i]; i++) {
738         uint8_t c = qemu_toupper(val[i]); /* mimic HMC */
739 
740         if (('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || (c == '.') ||
741             (c == ' ')) {
742             ms->loadparm[i] = c;
743         } else {
744             error_setg(errp, "LOADPARM: invalid character '%c' (ASCII 0x%02x)",
745                        c, c);
746             return;
747         }
748     }
749 
750     for (; i < sizeof(ms->loadparm); i++) {
751         ms->loadparm[i] = ' '; /* pad right with spaces */
752     }
753 }
754 
755 static void ccw_machine_class_init(ObjectClass *oc, void *data)
756 {
757     MachineClass *mc = MACHINE_CLASS(oc);
758     NMIClass *nc = NMI_CLASS(oc);
759     HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc);
760     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
761 
762     s390mc->ri_allowed = true;
763     s390mc->cpu_model_allowed = true;
764     s390mc->css_migration_enabled = true;
765     s390mc->hpage_1m_allowed = true;
766     s390mc->max_threads = 1;
767     mc->init = ccw_init;
768     mc->reset = s390_machine_reset;
769     mc->block_default_type = IF_VIRTIO;
770     mc->no_cdrom = 1;
771     mc->no_floppy = 1;
772     mc->no_parallel = 1;
773     mc->no_sdcard = 1;
774     mc->max_cpus = S390_MAX_CPUS;
775     mc->has_hotpluggable_cpus = true;
776     mc->smp_props.books_supported = true;
777     mc->smp_props.drawers_supported = true;
778     assert(!mc->get_hotplug_handler);
779     mc->get_hotplug_handler = s390_get_hotplug_handler;
780     mc->cpu_index_to_instance_props = s390_cpu_index_to_props;
781     mc->possible_cpu_arch_ids = s390_possible_cpu_arch_ids;
782     /* it is overridden with 'host' cpu *in kvm_arch_init* */
783     mc->default_cpu_type = S390_CPU_TYPE_NAME("qemu");
784     hc->plug = s390_machine_device_plug;
785     hc->unplug_request = s390_machine_device_unplug_request;
786     nc->nmi_monitor_handler = s390_nmi;
787     mc->default_ram_id = "s390.ram";
788     mc->default_nic = "virtio-net-ccw";
789 
790     object_class_property_add_bool(oc, "aes-key-wrap",
791                                    machine_get_aes_key_wrap,
792                                    machine_set_aes_key_wrap);
793     object_class_property_set_description(oc, "aes-key-wrap",
794             "enable/disable AES key wrapping using the CPACF wrapping key");
795 
796     object_class_property_add_bool(oc, "dea-key-wrap",
797                                    machine_get_dea_key_wrap,
798                                    machine_set_dea_key_wrap);
799     object_class_property_set_description(oc, "dea-key-wrap",
800             "enable/disable DEA key wrapping using the CPACF wrapping key");
801 
802     object_class_property_add(oc, "loadparm", "loadparm",
803                               machine_get_loadparm, machine_set_loadparm,
804                               NULL, NULL);
805     object_class_property_set_description(oc, "loadparm",
806             "Up to 8 chars in set of [A-Za-z0-9. ] (lower case chars converted"
807             " to upper case) to pass to machine loader, boot manager,"
808             " and guest kernel");
809 }
810 
811 static inline void s390_machine_initfn(Object *obj)
812 {
813     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
814 
815     ms->aes_key_wrap = true;
816     ms->dea_key_wrap = true;
817 }
818 
819 static const TypeInfo ccw_machine_info = {
820     .name          = TYPE_S390_CCW_MACHINE,
821     .parent        = TYPE_MACHINE,
822     .abstract      = true,
823     .instance_size = sizeof(S390CcwMachineState),
824     .instance_init = s390_machine_initfn,
825     .class_size = sizeof(S390CcwMachineClass),
826     .class_init    = ccw_machine_class_init,
827     .interfaces = (InterfaceInfo[]) {
828         { TYPE_NMI },
829         { TYPE_HOTPLUG_HANDLER},
830         { }
831     },
832 };
833 
834 bool css_migration_enabled(void)
835 {
836     return get_machine_class()->css_migration_enabled;
837 }
838 
839 #define DEFINE_CCW_MACHINE(suffix, verstr, latest)                            \
840     static void ccw_machine_##suffix##_class_init(ObjectClass *oc,            \
841                                                   void *data)                 \
842     {                                                                         \
843         MachineClass *mc = MACHINE_CLASS(oc);                                 \
844         ccw_machine_##suffix##_class_options(mc);                             \
845         mc->desc = "Virtual s390x machine (version " verstr ")";              \
846         if (latest) {                                                         \
847             mc->alias = "s390-ccw-virtio";                                    \
848             mc->is_default = true;                                            \
849         }                                                                     \
850     }                                                                         \
851     static void ccw_machine_##suffix##_instance_init(Object *obj)             \
852     {                                                                         \
853         MachineState *machine = MACHINE(obj);                                 \
854         current_mc = S390_CCW_MACHINE_CLASS(MACHINE_GET_CLASS(machine));          \
855         ccw_machine_##suffix##_instance_options(machine);                     \
856     }                                                                         \
857     static const TypeInfo ccw_machine_##suffix##_info = {                     \
858         .name = MACHINE_TYPE_NAME("s390-ccw-virtio-" verstr),                 \
859         .parent = TYPE_S390_CCW_MACHINE,                                      \
860         .class_init = ccw_machine_##suffix##_class_init,                      \
861         .instance_init = ccw_machine_##suffix##_instance_init,                \
862     };                                                                        \
863     static void ccw_machine_register_##suffix(void)                           \
864     {                                                                         \
865         type_register_static(&ccw_machine_##suffix##_info);                   \
866     }                                                                         \
867     type_init(ccw_machine_register_##suffix)
868 
869 static void ccw_machine_9_0_instance_options(MachineState *machine)
870 {
871 }
872 
873 static void ccw_machine_9_0_class_options(MachineClass *mc)
874 {
875 }
876 DEFINE_CCW_MACHINE(9_0, "9.0", true);
877 
878 static void ccw_machine_8_2_instance_options(MachineState *machine)
879 {
880     ccw_machine_9_0_instance_options(machine);
881 }
882 
883 static void ccw_machine_8_2_class_options(MachineClass *mc)
884 {
885     ccw_machine_9_0_class_options(mc);
886     compat_props_add(mc->compat_props, hw_compat_8_2, hw_compat_8_2_len);
887 }
888 DEFINE_CCW_MACHINE(8_2, "8.2", false);
889 
890 static void ccw_machine_8_1_instance_options(MachineState *machine)
891 {
892     ccw_machine_8_2_instance_options(machine);
893 }
894 
895 static void ccw_machine_8_1_class_options(MachineClass *mc)
896 {
897     ccw_machine_8_2_class_options(mc);
898     compat_props_add(mc->compat_props, hw_compat_8_1, hw_compat_8_1_len);
899     mc->smp_props.drawers_supported = false;
900     mc->smp_props.books_supported = false;
901 }
902 DEFINE_CCW_MACHINE(8_1, "8.1", false);
903 
904 static void ccw_machine_8_0_instance_options(MachineState *machine)
905 {
906     ccw_machine_8_1_instance_options(machine);
907 }
908 
909 static void ccw_machine_8_0_class_options(MachineClass *mc)
910 {
911     ccw_machine_8_1_class_options(mc);
912     compat_props_add(mc->compat_props, hw_compat_8_0, hw_compat_8_0_len);
913 }
914 DEFINE_CCW_MACHINE(8_0, "8.0", false);
915 
916 static void ccw_machine_7_2_instance_options(MachineState *machine)
917 {
918     ccw_machine_8_0_instance_options(machine);
919 }
920 
921 static void ccw_machine_7_2_class_options(MachineClass *mc)
922 {
923     ccw_machine_8_0_class_options(mc);
924     compat_props_add(mc->compat_props, hw_compat_7_2, hw_compat_7_2_len);
925 }
926 DEFINE_CCW_MACHINE(7_2, "7.2", false);
927 
928 static void ccw_machine_7_1_instance_options(MachineState *machine)
929 {
930     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V7_1 };
931 
932     ccw_machine_7_2_instance_options(machine);
933     s390_cpudef_featoff_greater(16, 1, S390_FEAT_PAIE);
934     s390_set_qemu_cpu_model(0x8561, 15, 1, qemu_cpu_feat);
935 }
936 
937 static void ccw_machine_7_1_class_options(MachineClass *mc)
938 {
939     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
940     static GlobalProperty compat[] = {
941         { TYPE_S390_PCI_DEVICE, "interpret", "off", },
942         { TYPE_S390_PCI_DEVICE, "forwarding-assist", "off", },
943     };
944 
945     ccw_machine_7_2_class_options(mc);
946     compat_props_add(mc->compat_props, hw_compat_7_1, hw_compat_7_1_len);
947     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
948     s390mc->max_threads = S390_MAX_CPUS;
949 }
950 DEFINE_CCW_MACHINE(7_1, "7.1", false);
951 
952 static void ccw_machine_7_0_instance_options(MachineState *machine)
953 {
954     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V7_0 };
955 
956     ccw_machine_7_1_instance_options(machine);
957     s390_set_qemu_cpu_model(0x8561, 15, 1, qemu_cpu_feat);
958 }
959 
960 static void ccw_machine_7_0_class_options(MachineClass *mc)
961 {
962     ccw_machine_7_1_class_options(mc);
963     compat_props_add(mc->compat_props, hw_compat_7_0, hw_compat_7_0_len);
964 }
965 DEFINE_CCW_MACHINE(7_0, "7.0", false);
966 
967 static void ccw_machine_6_2_instance_options(MachineState *machine)
968 {
969     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_2 };
970 
971     ccw_machine_7_0_instance_options(machine);
972     s390_set_qemu_cpu_model(0x3906, 14, 2, qemu_cpu_feat);
973 }
974 
975 static void ccw_machine_6_2_class_options(MachineClass *mc)
976 {
977     ccw_machine_7_0_class_options(mc);
978     compat_props_add(mc->compat_props, hw_compat_6_2, hw_compat_6_2_len);
979 }
980 DEFINE_CCW_MACHINE(6_2, "6.2", false);
981 
982 static void ccw_machine_6_1_instance_options(MachineState *machine)
983 {
984     ccw_machine_6_2_instance_options(machine);
985     s390_cpudef_featoff_greater(16, 1, S390_FEAT_NNPA);
986     s390_cpudef_featoff_greater(16, 1, S390_FEAT_VECTOR_PACKED_DECIMAL_ENH2);
987     s390_cpudef_featoff_greater(16, 1, S390_FEAT_BEAR_ENH);
988     s390_cpudef_featoff_greater(16, 1, S390_FEAT_RDP);
989     s390_cpudef_featoff_greater(16, 1, S390_FEAT_PAI);
990 }
991 
992 static void ccw_machine_6_1_class_options(MachineClass *mc)
993 {
994     ccw_machine_6_2_class_options(mc);
995     compat_props_add(mc->compat_props, hw_compat_6_1, hw_compat_6_1_len);
996     mc->smp_props.prefer_sockets = true;
997 }
998 DEFINE_CCW_MACHINE(6_1, "6.1", false);
999 
1000 static void ccw_machine_6_0_instance_options(MachineState *machine)
1001 {
1002     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_0 };
1003 
1004     ccw_machine_6_1_instance_options(machine);
1005     s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat);
1006 }
1007 
1008 static void ccw_machine_6_0_class_options(MachineClass *mc)
1009 {
1010     ccw_machine_6_1_class_options(mc);
1011     compat_props_add(mc->compat_props, hw_compat_6_0, hw_compat_6_0_len);
1012 }
1013 DEFINE_CCW_MACHINE(6_0, "6.0", false);
1014 
1015 static void ccw_machine_5_2_instance_options(MachineState *machine)
1016 {
1017     ccw_machine_6_0_instance_options(machine);
1018 }
1019 
1020 static void ccw_machine_5_2_class_options(MachineClass *mc)
1021 {
1022     ccw_machine_6_0_class_options(mc);
1023     compat_props_add(mc->compat_props, hw_compat_5_2, hw_compat_5_2_len);
1024 }
1025 DEFINE_CCW_MACHINE(5_2, "5.2", false);
1026 
1027 static void ccw_machine_5_1_instance_options(MachineState *machine)
1028 {
1029     ccw_machine_5_2_instance_options(machine);
1030 }
1031 
1032 static void ccw_machine_5_1_class_options(MachineClass *mc)
1033 {
1034     ccw_machine_5_2_class_options(mc);
1035     compat_props_add(mc->compat_props, hw_compat_5_1, hw_compat_5_1_len);
1036 }
1037 DEFINE_CCW_MACHINE(5_1, "5.1", false);
1038 
1039 static void ccw_machine_5_0_instance_options(MachineState *machine)
1040 {
1041     ccw_machine_5_1_instance_options(machine);
1042 }
1043 
1044 static void ccw_machine_5_0_class_options(MachineClass *mc)
1045 {
1046     ccw_machine_5_1_class_options(mc);
1047     compat_props_add(mc->compat_props, hw_compat_5_0, hw_compat_5_0_len);
1048 }
1049 DEFINE_CCW_MACHINE(5_0, "5.0", false);
1050 
1051 static void ccw_machine_4_2_instance_options(MachineState *machine)
1052 {
1053     ccw_machine_5_0_instance_options(machine);
1054 }
1055 
1056 static void ccw_machine_4_2_class_options(MachineClass *mc)
1057 {
1058     ccw_machine_5_0_class_options(mc);
1059     mc->fixup_ram_size = s390_fixup_ram_size;
1060     compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len);
1061 }
1062 DEFINE_CCW_MACHINE(4_2, "4.2", false);
1063 
1064 static void ccw_machine_4_1_instance_options(MachineState *machine)
1065 {
1066     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_1 };
1067     ccw_machine_4_2_instance_options(machine);
1068     s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat);
1069 }
1070 
1071 static void ccw_machine_4_1_class_options(MachineClass *mc)
1072 {
1073     ccw_machine_4_2_class_options(mc);
1074     compat_props_add(mc->compat_props, hw_compat_4_1, hw_compat_4_1_len);
1075 }
1076 DEFINE_CCW_MACHINE(4_1, "4.1", false);
1077 
1078 static void ccw_machine_4_0_instance_options(MachineState *machine)
1079 {
1080     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_0 };
1081     ccw_machine_4_1_instance_options(machine);
1082     s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat);
1083 }
1084 
1085 static void ccw_machine_4_0_class_options(MachineClass *mc)
1086 {
1087     ccw_machine_4_1_class_options(mc);
1088     compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len);
1089 }
1090 DEFINE_CCW_MACHINE(4_0, "4.0", false);
1091 
1092 static void ccw_machine_3_1_instance_options(MachineState *machine)
1093 {
1094     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V3_1 };
1095     ccw_machine_4_0_instance_options(machine);
1096     s390_cpudef_featoff_greater(14, 1, S390_FEAT_MULTIPLE_EPOCH);
1097     s390_cpudef_group_featoff_greater(14, 1, S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF);
1098     s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat);
1099 }
1100 
1101 static void ccw_machine_3_1_class_options(MachineClass *mc)
1102 {
1103     ccw_machine_4_0_class_options(mc);
1104     compat_props_add(mc->compat_props, hw_compat_3_1, hw_compat_3_1_len);
1105 }
1106 DEFINE_CCW_MACHINE(3_1, "3.1", false);
1107 
1108 static void ccw_machine_3_0_instance_options(MachineState *machine)
1109 {
1110     ccw_machine_3_1_instance_options(machine);
1111 }
1112 
1113 static void ccw_machine_3_0_class_options(MachineClass *mc)
1114 {
1115     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
1116 
1117     s390mc->hpage_1m_allowed = false;
1118     ccw_machine_3_1_class_options(mc);
1119     compat_props_add(mc->compat_props, hw_compat_3_0, hw_compat_3_0_len);
1120 }
1121 DEFINE_CCW_MACHINE(3_0, "3.0", false);
1122 
1123 static void ccw_machine_2_12_instance_options(MachineState *machine)
1124 {
1125     ccw_machine_3_0_instance_options(machine);
1126     s390_cpudef_featoff_greater(11, 1, S390_FEAT_PPA15);
1127     s390_cpudef_featoff_greater(11, 1, S390_FEAT_BPB);
1128 }
1129 
1130 static void ccw_machine_2_12_class_options(MachineClass *mc)
1131 {
1132     ccw_machine_3_0_class_options(mc);
1133     compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len);
1134 }
1135 DEFINE_CCW_MACHINE(2_12, "2.12", false);
1136 
1137 static void ccw_machine_2_11_instance_options(MachineState *machine)
1138 {
1139     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 };
1140     ccw_machine_2_12_instance_options(machine);
1141 
1142     /* before 2.12 we emulated the very first z900 */
1143     s390_set_qemu_cpu_model(0x2064, 7, 1, qemu_cpu_feat);
1144 }
1145 
1146 static void ccw_machine_2_11_class_options(MachineClass *mc)
1147 {
1148     static GlobalProperty compat[] = {
1149         { TYPE_SCLP_EVENT_FACILITY, "allow_all_mask_sizes", "off", },
1150     };
1151 
1152     ccw_machine_2_12_class_options(mc);
1153     compat_props_add(mc->compat_props, hw_compat_2_11, hw_compat_2_11_len);
1154     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
1155 }
1156 DEFINE_CCW_MACHINE(2_11, "2.11", false);
1157 
1158 static void ccw_machine_2_10_instance_options(MachineState *machine)
1159 {
1160     ccw_machine_2_11_instance_options(machine);
1161 }
1162 
1163 static void ccw_machine_2_10_class_options(MachineClass *mc)
1164 {
1165     ccw_machine_2_11_class_options(mc);
1166     compat_props_add(mc->compat_props, hw_compat_2_10, hw_compat_2_10_len);
1167 }
1168 DEFINE_CCW_MACHINE(2_10, "2.10", false);
1169 
1170 static void ccw_machine_2_9_instance_options(MachineState *machine)
1171 {
1172     ccw_machine_2_10_instance_options(machine);
1173     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ESOP);
1174     s390_cpudef_featoff_greater(12, 1, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2);
1175     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ZPCI);
1176     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_INT_SUPPRESSION);
1177     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_EVENT_NOTIFICATION);
1178 }
1179 
1180 static void ccw_machine_2_9_class_options(MachineClass *mc)
1181 {
1182     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
1183     static GlobalProperty compat[] = {
1184         { TYPE_S390_STATTRIB, "migration-enabled", "off", },
1185     };
1186 
1187     ccw_machine_2_10_class_options(mc);
1188     compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len);
1189     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
1190     s390mc->css_migration_enabled = false;
1191 }
1192 DEFINE_CCW_MACHINE(2_9, "2.9", false);
1193 
1194 static void ccw_machine_2_8_instance_options(MachineState *machine)
1195 {
1196     ccw_machine_2_9_instance_options(machine);
1197 }
1198 
1199 static void ccw_machine_2_8_class_options(MachineClass *mc)
1200 {
1201     static GlobalProperty compat[] = {
1202         { TYPE_S390_FLIC_COMMON, "adapter_routes_max_batch", "64", },
1203     };
1204 
1205     ccw_machine_2_9_class_options(mc);
1206     compat_props_add(mc->compat_props, hw_compat_2_8, hw_compat_2_8_len);
1207     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
1208 }
1209 DEFINE_CCW_MACHINE(2_8, "2.8", false);
1210 
1211 static void ccw_machine_2_7_instance_options(MachineState *machine)
1212 {
1213     ccw_machine_2_8_instance_options(machine);
1214 }
1215 
1216 static void ccw_machine_2_7_class_options(MachineClass *mc)
1217 {
1218     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
1219 
1220     s390mc->cpu_model_allowed = false;
1221     ccw_machine_2_8_class_options(mc);
1222     compat_props_add(mc->compat_props, hw_compat_2_7, hw_compat_2_7_len);
1223 }
1224 DEFINE_CCW_MACHINE(2_7, "2.7", false);
1225 
1226 static void ccw_machine_2_6_instance_options(MachineState *machine)
1227 {
1228     ccw_machine_2_7_instance_options(machine);
1229 }
1230 
1231 static void ccw_machine_2_6_class_options(MachineClass *mc)
1232 {
1233     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
1234     static GlobalProperty compat[] = {
1235         { TYPE_S390_IPL, "iplbext_migration", "off", },
1236          { TYPE_VIRTUAL_CSS_BRIDGE, "css_dev_path", "off", },
1237     };
1238 
1239     s390mc->ri_allowed = false;
1240     ccw_machine_2_7_class_options(mc);
1241     compat_props_add(mc->compat_props, hw_compat_2_6, hw_compat_2_6_len);
1242     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
1243 }
1244 DEFINE_CCW_MACHINE(2_6, "2.6", false);
1245 
1246 static void ccw_machine_2_5_instance_options(MachineState *machine)
1247 {
1248     ccw_machine_2_6_instance_options(machine);
1249 }
1250 
1251 static void ccw_machine_2_5_class_options(MachineClass *mc)
1252 {
1253     ccw_machine_2_6_class_options(mc);
1254     compat_props_add(mc->compat_props, hw_compat_2_5, hw_compat_2_5_len);
1255 }
1256 DEFINE_CCW_MACHINE(2_5, "2.5", false);
1257 
1258 static void ccw_machine_2_4_instance_options(MachineState *machine)
1259 {
1260     ccw_machine_2_5_instance_options(machine);
1261 }
1262 
1263 static void ccw_machine_2_4_class_options(MachineClass *mc)
1264 {
1265     static GlobalProperty compat[] = {
1266         { TYPE_S390_SKEYS, "migration-enabled", "off", },
1267         { "virtio-blk-ccw", "max_revision", "0", },
1268         { "virtio-balloon-ccw", "max_revision", "0", },
1269         { "virtio-serial-ccw", "max_revision", "0", },
1270         { "virtio-9p-ccw", "max_revision", "0", },
1271         { "virtio-rng-ccw", "max_revision", "0", },
1272         { "virtio-net-ccw", "max_revision", "0", },
1273         { "virtio-scsi-ccw", "max_revision", "0", },
1274         { "vhost-scsi-ccw", "max_revision", "0", },
1275     };
1276 
1277     ccw_machine_2_5_class_options(mc);
1278     compat_props_add(mc->compat_props, hw_compat_2_4, hw_compat_2_4_len);
1279     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
1280 }
1281 DEFINE_CCW_MACHINE(2_4, "2.4", false);
1282 
1283 static void ccw_machine_register_types(void)
1284 {
1285     type_register_static(&ccw_machine_info);
1286 }
1287 
1288 type_init(ccw_machine_register_types)
1289