xref: /openbmc/qemu/hw/s390x/s390-virtio-ccw.c (revision 646b5378)
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/boards.h"
19 #include "hw/s390x/s390-virtio-hcall.h"
20 #include "hw/s390x/sclp.h"
21 #include "hw/s390x/s390_flic.h"
22 #include "hw/s390x/ioinst.h"
23 #include "hw/s390x/css.h"
24 #include "virtio-ccw.h"
25 #include "qemu/config-file.h"
26 #include "qemu/ctype.h"
27 #include "qemu/error-report.h"
28 #include "qemu/option.h"
29 #include "qemu/qemu-print.h"
30 #include "qemu/units.h"
31 #include "hw/s390x/s390-pci-bus.h"
32 #include "sysemu/reset.h"
33 #include "hw/s390x/storage-keys.h"
34 #include "hw/s390x/storage-attributes.h"
35 #include "hw/s390x/event-facility.h"
36 #include "ipl.h"
37 #include "hw/s390x/s390-virtio-ccw.h"
38 #include "hw/s390x/css-bridge.h"
39 #include "hw/s390x/ap-bridge.h"
40 #include "migration/register.h"
41 #include "cpu_models.h"
42 #include "hw/nmi.h"
43 #include "hw/qdev-properties.h"
44 #include "hw/s390x/tod.h"
45 #include "sysemu/sysemu.h"
46 #include "sysemu/cpus.h"
47 #include "target/s390x/kvm/pv.h"
48 #include "migration/blocker.h"
49 #include "qapi/visitor.h"
50 #include "hw/s390x/cpu-topology.h"
51 #include CONFIG_DEVICES
52 
53 static Error *pv_mig_blocker;
54 
55 static S390CPU *s390x_new_cpu(const char *typename, uint32_t core_id,
56                               Error **errp)
57 {
58     S390CPU *cpu = S390_CPU(object_new(typename));
59     S390CPU *ret = NULL;
60 
61     if (!object_property_set_int(OBJECT(cpu), "core-id", core_id, errp)) {
62         goto out;
63     }
64     if (!qdev_realize(DEVICE(cpu), NULL, errp)) {
65         goto out;
66     }
67     ret = cpu;
68 
69 out:
70     object_unref(OBJECT(cpu));
71     return ret;
72 }
73 
74 static void s390_init_cpus(MachineState *machine)
75 {
76     MachineClass *mc = MACHINE_GET_CLASS(machine);
77     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
78     int i;
79 
80     if (machine->smp.threads > s390mc->max_threads) {
81         error_report("S390 does not support more than %d threads.",
82                      s390mc->max_threads);
83         exit(1);
84     }
85 
86     /* initialize possible_cpus */
87     mc->possible_cpu_arch_ids(machine);
88 
89     for (i = 0; i < machine->smp.cpus; i++) {
90         s390x_new_cpu(machine->cpu_type, i, &error_fatal);
91     }
92 }
93 
94 static const char *const reset_dev_types[] = {
95     TYPE_VIRTUAL_CSS_BRIDGE,
96     "s390-sclp-event-facility",
97     "s390-flic",
98     "diag288",
99     TYPE_S390_PCI_HOST_BRIDGE,
100     TYPE_AP_BRIDGE,
101 };
102 
103 static void subsystem_reset(void)
104 {
105     DeviceState *dev;
106     int i;
107 
108     /*
109      * ISM firmware is sensitive to unexpected changes to the IOMMU, which can
110      * occur during reset of the vfio-pci device (unmap of entire aperture).
111      * Ensure any passthrough ISM devices are reset now, while CPUs are paused
112      * but before vfio-pci cleanup occurs.
113      */
114     s390_pci_ism_reset();
115 
116     for (i = 0; i < ARRAY_SIZE(reset_dev_types); i++) {
117         dev = DEVICE(object_resolve_path_type("", reset_dev_types[i], NULL));
118         if (dev) {
119             device_cold_reset(dev);
120         }
121     }
122     if (s390_has_topology()) {
123         s390_topology_reset();
124     }
125 }
126 
127 static int virtio_ccw_hcall_notify(const uint64_t *args)
128 {
129     uint64_t subch_id = args[0];
130     uint64_t data = args[1];
131     SubchDev *sch;
132     VirtIODevice *vdev;
133     int cssid, ssid, schid, m;
134     uint16_t vq_idx = data;
135 
136     if (ioinst_disassemble_sch_ident(subch_id, &m, &cssid, &ssid, &schid)) {
137         return -EINVAL;
138     }
139     sch = css_find_subch(m, cssid, ssid, schid);
140     if (!sch || !css_subch_visible(sch)) {
141         return -EINVAL;
142     }
143 
144     vdev = virtio_ccw_get_vdev(sch);
145     if (vq_idx >= VIRTIO_QUEUE_MAX || !virtio_queue_get_num(vdev, vq_idx)) {
146         return -EINVAL;
147     }
148 
149     if (virtio_vdev_has_feature(vdev, VIRTIO_F_NOTIFICATION_DATA)) {
150         virtio_queue_set_shadow_avail_idx(virtio_get_queue(vdev, vq_idx),
151                                           (data >> 16) & 0xFFFF);
152     }
153 
154     virtio_queue_notify(vdev, vq_idx);
155     return 0;
156 }
157 
158 static int virtio_ccw_hcall_early_printk(const uint64_t *args)
159 {
160     uint64_t mem = args[0];
161     MachineState *ms = MACHINE(qdev_get_machine());
162 
163     if (mem < ms->ram_size) {
164         /* Early printk */
165         return 0;
166     }
167     return -EINVAL;
168 }
169 
170 static void virtio_ccw_register_hcalls(void)
171 {
172     s390_register_virtio_hypercall(KVM_S390_VIRTIO_CCW_NOTIFY,
173                                    virtio_ccw_hcall_notify);
174     /* Tolerate early printk. */
175     s390_register_virtio_hypercall(KVM_S390_VIRTIO_NOTIFY,
176                                    virtio_ccw_hcall_early_printk);
177 }
178 
179 static void s390_memory_init(MemoryRegion *ram)
180 {
181     MemoryRegion *sysmem = get_system_memory();
182 
183     /* allocate RAM for core */
184     memory_region_add_subregion(sysmem, 0, ram);
185 
186     /*
187      * Configure the maximum page size. As no memory devices were created
188      * yet, this is the page size of initial memory only.
189      */
190     s390_set_max_pagesize(qemu_maxrampagesize(), &error_fatal);
191     /* Initialize storage key device */
192     s390_skeys_init();
193     /* Initialize storage attributes device */
194     s390_stattrib_init();
195 }
196 
197 static void s390_init_ipl_dev(const char *kernel_filename,
198                               const char *kernel_cmdline,
199                               const char *initrd_filename, const char *firmware,
200                               bool enforce_bios)
201 {
202     Object *new = object_new(TYPE_S390_IPL);
203     DeviceState *dev = DEVICE(new);
204 
205     if (kernel_filename) {
206         qdev_prop_set_string(dev, "kernel", kernel_filename);
207     }
208     if (initrd_filename) {
209         qdev_prop_set_string(dev, "initrd", initrd_filename);
210     }
211     qdev_prop_set_string(dev, "cmdline", kernel_cmdline);
212     qdev_prop_set_string(dev, "firmware", firmware);
213     qdev_prop_set_bit(dev, "enforce_bios", enforce_bios);
214     object_property_add_child(qdev_get_machine(), TYPE_S390_IPL,
215                               new);
216     object_unref(new);
217     qdev_realize(dev, NULL, &error_fatal);
218 }
219 
220 static void s390_create_virtio_net(BusState *bus, const char *name)
221 {
222     DeviceState *dev;
223     int cnt = 0;
224 
225     while ((dev = qemu_create_nic_device(name, true, "virtio"))) {
226         g_autofree char *childname = g_strdup_printf("%s[%d]", name, cnt++);
227         object_property_add_child(OBJECT(bus), childname, OBJECT(dev));
228         qdev_realize_and_unref(dev, bus, &error_fatal);
229     }
230 }
231 
232 static void s390_create_sclpconsole(SCLPDevice *sclp,
233                                     const char *type, Chardev *chardev)
234 {
235     SCLPEventFacility *ef = sclp->event_facility;
236     BusState *ev_fac_bus = sclp_get_event_facility_bus(ef);
237     DeviceState *dev;
238 
239     dev = qdev_new(type);
240     object_property_add_child(OBJECT(ef), type, OBJECT(dev));
241     qdev_prop_set_chr(dev, "chardev", chardev);
242     qdev_realize_and_unref(dev, ev_fac_bus, &error_fatal);
243 }
244 
245 static void ccw_init(MachineState *machine)
246 {
247     MachineClass *mc = MACHINE_GET_CLASS(machine);
248     S390CcwMachineState *ms = S390_CCW_MACHINE(machine);
249     int ret;
250     VirtualCssBus *css_bus;
251     DeviceState *dev;
252 
253     ms->sclp = SCLP(object_new(TYPE_SCLP));
254     object_property_add_child(OBJECT(machine), TYPE_SCLP, OBJECT(ms->sclp));
255     qdev_realize_and_unref(DEVICE(ms->sclp), NULL, &error_fatal);
256 
257     /* init memory + setup max page size. Required for the CPU model */
258     s390_memory_init(machine->ram);
259 
260     /* init CPUs (incl. CPU model) early so s390_has_feature() works */
261     s390_init_cpus(machine);
262 
263     /* Need CPU model to be determined before we can set up PV */
264     if (machine->cgs) {
265         confidential_guest_kvm_init(machine->cgs, &error_fatal);
266     }
267 
268     s390_flic_init();
269 
270     /* init the SIGP facility */
271     s390_init_sigp();
272 
273     /* create AP bridge and bus(es) */
274     s390_init_ap();
275 
276     /* get a BUS */
277     css_bus = virtual_css_bus_init();
278     s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline,
279                       machine->initrd_filename,
280                       machine->firmware ?: "s390-ccw.img",
281                       true);
282 
283     dev = qdev_new(TYPE_S390_PCI_HOST_BRIDGE);
284     object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE,
285                               OBJECT(dev));
286     sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
287 
288     /* register hypercalls */
289     virtio_ccw_register_hcalls();
290 
291     s390_enable_css_support(s390_cpu_addr2state(0));
292 
293     ret = css_create_css_image(VIRTUAL_CSSID, true);
294     assert(ret == 0);
295 
296     css_register_vmstate();
297 
298     /* Create VirtIO network adapters */
299     s390_create_virtio_net(BUS(css_bus), mc->default_nic);
300 
301     /* init consoles */
302     if (serial_hd(0)) {
303         s390_create_sclpconsole(ms->sclp, "sclpconsole", serial_hd(0));
304     }
305     if (serial_hd(1)) {
306         s390_create_sclpconsole(ms->sclp, "sclplmconsole", serial_hd(1));
307     }
308 
309     /* init the TOD clock */
310     s390_init_tod();
311 }
312 
313 static void s390_cpu_plug(HotplugHandler *hotplug_dev,
314                         DeviceState *dev, Error **errp)
315 {
316     ERRP_GUARD();
317     MachineState *ms = MACHINE(hotplug_dev);
318     S390CPU *cpu = S390_CPU(dev);
319 
320     g_assert(!ms->possible_cpus->cpus[cpu->env.core_id].cpu);
321     ms->possible_cpus->cpus[cpu->env.core_id].cpu = CPU(dev);
322 
323     if (s390_has_topology()) {
324         s390_topology_setup_cpu(ms, cpu, errp);
325         if (*errp) {
326             return;
327         }
328     }
329 
330     if (dev->hotplugged) {
331         raise_irq_cpu_hotplug();
332     }
333 }
334 
335 static inline void s390_do_cpu_ipl(CPUState *cs, run_on_cpu_data arg)
336 {
337     S390CPU *cpu = S390_CPU(cs);
338 
339     s390_ipl_prepare_cpu(cpu);
340     s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu);
341 }
342 
343 static void s390_machine_unprotect(S390CcwMachineState *ms)
344 {
345     if (!s390_pv_vm_try_disable_async(ms)) {
346         s390_pv_vm_disable();
347     }
348     ms->pv = false;
349     migrate_del_blocker(&pv_mig_blocker);
350     ram_block_discard_disable(false);
351 }
352 
353 static int s390_machine_protect(S390CcwMachineState *ms)
354 {
355     Error *local_err = NULL;
356     int rc;
357 
358    /*
359     * Discarding of memory in RAM blocks does not work as expected with
360     * protected VMs. Sharing and unsharing pages would be required. Disable
361     * it for now, until until we have a solution to make at least Linux
362     * guests either support it (e.g., virtio-balloon) or fail gracefully.
363     */
364     rc = ram_block_discard_disable(true);
365     if (rc) {
366         error_report("protected VMs: cannot disable RAM discard");
367         return rc;
368     }
369 
370     error_setg(&pv_mig_blocker,
371                "protected VMs are currently not migratable.");
372     rc = migrate_add_blocker(&pv_mig_blocker, &local_err);
373     if (rc) {
374         ram_block_discard_disable(false);
375         error_report_err(local_err);
376         return rc;
377     }
378 
379     /* Create SE VM */
380     rc = s390_pv_vm_enable();
381     if (rc) {
382         ram_block_discard_disable(false);
383         migrate_del_blocker(&pv_mig_blocker);
384         return rc;
385     }
386 
387     ms->pv = true;
388 
389     /* Will return 0 if API is not available since it's not vital */
390     rc = s390_pv_query_info();
391     if (rc) {
392         goto out_err;
393     }
394 
395     /* Set SE header and unpack */
396     rc = s390_ipl_prepare_pv_header(&local_err);
397     if (rc) {
398         goto out_err;
399     }
400 
401     /* Decrypt image */
402     rc = s390_ipl_pv_unpack();
403     if (rc) {
404         goto out_err;
405     }
406 
407     /* Verify integrity */
408     rc = s390_pv_verify();
409     if (rc) {
410         goto out_err;
411     }
412     return rc;
413 
414 out_err:
415     if (local_err) {
416         error_report_err(local_err);
417     }
418     s390_machine_unprotect(ms);
419     return rc;
420 }
421 
422 static void s390_pv_prepare_reset(S390CcwMachineState *ms)
423 {
424     CPUState *cs;
425 
426     if (!s390_is_pv()) {
427         return;
428     }
429     /* Unsharing requires all cpus to be stopped */
430     CPU_FOREACH(cs) {
431         s390_cpu_set_state(S390_CPU_STATE_STOPPED, S390_CPU(cs));
432     }
433     s390_pv_unshare();
434     s390_pv_prep_reset();
435 }
436 
437 static void s390_machine_reset(MachineState *machine, ResetType type)
438 {
439     S390CcwMachineState *ms = S390_CCW_MACHINE(machine);
440     enum s390_reset reset_type;
441     CPUState *cs, *t;
442     S390CPU *cpu;
443 
444     /* get the reset parameters, reset them once done */
445     s390_ipl_get_reset_request(&cs, &reset_type);
446 
447     /* all CPUs are paused and synchronized at this point */
448     s390_cmma_reset();
449 
450     cpu = S390_CPU(cs);
451 
452     switch (reset_type) {
453     case S390_RESET_EXTERNAL:
454     case S390_RESET_REIPL:
455         /*
456          * Reset the subsystem which includes a AP reset. If a PV
457          * guest had APQNs attached the AP reset is a prerequisite to
458          * unprotecting since the UV checks if all APQNs are reset.
459          */
460         subsystem_reset();
461         if (s390_is_pv()) {
462             s390_machine_unprotect(ms);
463         }
464 
465         /*
466          * Device reset includes CPU clear resets so this has to be
467          * done AFTER the unprotect call above.
468          */
469         qemu_devices_reset(type);
470         s390_crypto_reset();
471 
472         /* configure and start the ipl CPU only */
473         run_on_cpu(cs, s390_do_cpu_ipl, RUN_ON_CPU_NULL);
474         break;
475     case S390_RESET_MODIFIED_CLEAR:
476         /*
477          * Subsystem reset needs to be done before we unshare memory
478          * and lose access to VIRTIO structures in guest memory.
479          */
480         subsystem_reset();
481         s390_crypto_reset();
482         s390_pv_prepare_reset(ms);
483         CPU_FOREACH(t) {
484             run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL);
485         }
486         run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL);
487         break;
488     case S390_RESET_LOAD_NORMAL:
489         /*
490          * Subsystem reset needs to be done before we unshare memory
491          * and lose access to VIRTIO structures in guest memory.
492          */
493         subsystem_reset();
494         s390_pv_prepare_reset(ms);
495         CPU_FOREACH(t) {
496             if (t == cs) {
497                 continue;
498             }
499             run_on_cpu(t, s390_do_cpu_reset, RUN_ON_CPU_NULL);
500         }
501         run_on_cpu(cs, s390_do_cpu_initial_reset, RUN_ON_CPU_NULL);
502         run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL);
503         break;
504     case S390_RESET_PV: /* Subcode 10 */
505         subsystem_reset();
506         s390_crypto_reset();
507 
508         CPU_FOREACH(t) {
509             if (t == cs) {
510                 continue;
511             }
512             run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL);
513         }
514         run_on_cpu(cs, s390_do_cpu_reset, RUN_ON_CPU_NULL);
515 
516         if (s390_machine_protect(ms)) {
517             s390_pv_inject_reset_error(cs);
518             /*
519              * Continue after the diag308 so the guest knows something
520              * went wrong.
521              */
522             s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu);
523             return;
524         }
525 
526         run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL);
527         break;
528     default:
529         g_assert_not_reached();
530     }
531 
532     CPU_FOREACH(t) {
533         run_on_cpu(t, s390_do_cpu_set_diag318, RUN_ON_CPU_HOST_ULONG(0));
534     }
535     s390_ipl_clear_reset_request();
536 }
537 
538 static void s390_machine_device_plug(HotplugHandler *hotplug_dev,
539                                      DeviceState *dev, Error **errp)
540 {
541     if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
542         s390_cpu_plug(hotplug_dev, dev, errp);
543     }
544 }
545 
546 static void s390_machine_device_unplug_request(HotplugHandler *hotplug_dev,
547                                                DeviceState *dev, Error **errp)
548 {
549     if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
550         error_setg(errp, "CPU hot unplug not supported on this machine");
551         return;
552     }
553 }
554 
555 static CpuInstanceProperties s390_cpu_index_to_props(MachineState *ms,
556                                                      unsigned cpu_index)
557 {
558     MachineClass *mc = MACHINE_GET_CLASS(ms);
559     const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms);
560 
561     assert(cpu_index < possible_cpus->len);
562     return possible_cpus->cpus[cpu_index].props;
563 }
564 
565 static const CPUArchIdList *s390_possible_cpu_arch_ids(MachineState *ms)
566 {
567     int i;
568     unsigned int max_cpus = ms->smp.max_cpus;
569 
570     if (ms->possible_cpus) {
571         g_assert(ms->possible_cpus && ms->possible_cpus->len == max_cpus);
572         return ms->possible_cpus;
573     }
574 
575     ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) +
576                                   sizeof(CPUArchId) * max_cpus);
577     ms->possible_cpus->len = max_cpus;
578     for (i = 0; i < ms->possible_cpus->len; i++) {
579         CpuInstanceProperties *props = &ms->possible_cpus->cpus[i].props;
580 
581         ms->possible_cpus->cpus[i].type = ms->cpu_type;
582         ms->possible_cpus->cpus[i].vcpus_count = 1;
583         ms->possible_cpus->cpus[i].arch_id = i;
584 
585         props->has_core_id = true;
586         props->core_id = i;
587         props->has_socket_id = true;
588         props->socket_id = s390_std_socket(i, &ms->smp);
589         props->has_book_id = true;
590         props->book_id = s390_std_book(i, &ms->smp);
591         props->has_drawer_id = true;
592         props->drawer_id = s390_std_drawer(i, &ms->smp);
593     }
594 
595     return ms->possible_cpus;
596 }
597 
598 static HotplugHandler *s390_get_hotplug_handler(MachineState *machine,
599                                                 DeviceState *dev)
600 {
601     if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
602         return HOTPLUG_HANDLER(machine);
603     }
604     return NULL;
605 }
606 
607 static void s390_nmi(NMIState *n, int cpu_index, Error **errp)
608 {
609     CPUState *cs = qemu_get_cpu(cpu_index);
610 
611     s390_cpu_restart(S390_CPU(cs));
612 }
613 
614 static ram_addr_t s390_fixup_ram_size(ram_addr_t sz)
615 {
616     /* same logic as in sclp.c */
617     int increment_size = 20;
618     ram_addr_t newsz;
619 
620     while ((sz >> increment_size) > MAX_STORAGE_INCREMENTS) {
621         increment_size++;
622     }
623     newsz = sz >> increment_size << increment_size;
624 
625     if (sz != newsz) {
626         qemu_printf("Ram size %" PRIu64 "MB was fixed up to %" PRIu64
627                     "MB to match machine restrictions. Consider updating "
628                     "the guest definition.\n", (uint64_t) (sz / MiB),
629                     (uint64_t) (newsz / MiB));
630     }
631     return newsz;
632 }
633 
634 static inline bool machine_get_aes_key_wrap(Object *obj, Error **errp)
635 {
636     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
637 
638     return ms->aes_key_wrap;
639 }
640 
641 static inline void machine_set_aes_key_wrap(Object *obj, bool value,
642                                             Error **errp)
643 {
644     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
645 
646     ms->aes_key_wrap = value;
647 }
648 
649 static inline bool machine_get_dea_key_wrap(Object *obj, Error **errp)
650 {
651     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
652 
653     return ms->dea_key_wrap;
654 }
655 
656 static inline void machine_set_dea_key_wrap(Object *obj, bool value,
657                                             Error **errp)
658 {
659     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
660 
661     ms->dea_key_wrap = value;
662 }
663 
664 static S390CcwMachineClass *current_mc;
665 
666 /*
667  * Get the class of the s390-ccw-virtio machine that is currently in use.
668  * Note: libvirt is using the "none" machine to probe for the features of the
669  * host CPU, so in case this is called with the "none" machine, the function
670  * returns the TYPE_S390_CCW_MACHINE base class. In this base class, all the
671  * various "*_allowed" variables are enabled, so that the *_allowed() wrappers
672  * below return the correct default value for the "none" machine.
673  *
674  * Attention! Do *not* add additional new wrappers for CPU features (e.g. like
675  * the ri_allowed() wrapper) via this mechanism anymore. CPU features should
676  * be handled via the CPU models, i.e. checking with cpu_model_allowed() during
677  * CPU initialization and s390_has_feat() later should be sufficient.
678  */
679 static S390CcwMachineClass *get_machine_class(void)
680 {
681     if (unlikely(!current_mc)) {
682         /*
683         * No s390 ccw machine was instantiated, we are likely to
684         * be called for the 'none' machine. The properties will
685         * have their after-initialization values.
686         */
687         current_mc = S390_CCW_MACHINE_CLASS(
688                      object_class_by_name(TYPE_S390_CCW_MACHINE));
689     }
690     return current_mc;
691 }
692 
693 bool ri_allowed(void)
694 {
695     return get_machine_class()->ri_allowed;
696 }
697 
698 bool cpu_model_allowed(void)
699 {
700     return get_machine_class()->cpu_model_allowed;
701 }
702 
703 bool hpage_1m_allowed(void)
704 {
705     return get_machine_class()->hpage_1m_allowed;
706 }
707 
708 static void machine_get_loadparm(Object *obj, Visitor *v,
709                                  const char *name, void *opaque,
710                                  Error **errp)
711 {
712     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
713     char *str = g_strndup((char *) ms->loadparm, sizeof(ms->loadparm));
714 
715     visit_type_str(v, name, &str, errp);
716     g_free(str);
717 }
718 
719 static void machine_set_loadparm(Object *obj, Visitor *v,
720                                  const char *name, void *opaque,
721                                  Error **errp)
722 {
723     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
724     char *val;
725 
726     if (!visit_type_str(v, name, &val, errp)) {
727         return;
728     }
729 
730     s390_ipl_fmt_loadparm(ms->loadparm, val, errp);
731 }
732 
733 static void ccw_machine_class_init(ObjectClass *oc, void *data)
734 {
735     MachineClass *mc = MACHINE_CLASS(oc);
736     NMIClass *nc = NMI_CLASS(oc);
737     HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc);
738     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
739 
740     s390mc->ri_allowed = true;
741     s390mc->cpu_model_allowed = true;
742     s390mc->hpage_1m_allowed = true;
743     s390mc->max_threads = 1;
744     mc->init = ccw_init;
745     mc->reset = s390_machine_reset;
746     mc->block_default_type = IF_VIRTIO;
747     mc->no_cdrom = 1;
748     mc->no_floppy = 1;
749     mc->no_parallel = 1;
750     mc->no_sdcard = 1;
751     mc->max_cpus = S390_MAX_CPUS;
752     mc->has_hotpluggable_cpus = true;
753     mc->smp_props.books_supported = true;
754     mc->smp_props.drawers_supported = true;
755     assert(!mc->get_hotplug_handler);
756     mc->get_hotplug_handler = s390_get_hotplug_handler;
757     mc->cpu_index_to_instance_props = s390_cpu_index_to_props;
758     mc->possible_cpu_arch_ids = s390_possible_cpu_arch_ids;
759     /* it is overridden with 'host' cpu *in kvm_arch_init* */
760     mc->default_cpu_type = S390_CPU_TYPE_NAME("qemu");
761     hc->plug = s390_machine_device_plug;
762     hc->unplug_request = s390_machine_device_unplug_request;
763     nc->nmi_monitor_handler = s390_nmi;
764     mc->default_ram_id = "s390.ram";
765     mc->default_nic = "virtio-net-ccw";
766 
767     object_class_property_add_bool(oc, "aes-key-wrap",
768                                    machine_get_aes_key_wrap,
769                                    machine_set_aes_key_wrap);
770     object_class_property_set_description(oc, "aes-key-wrap",
771             "enable/disable AES key wrapping using the CPACF wrapping key");
772 
773     object_class_property_add_bool(oc, "dea-key-wrap",
774                                    machine_get_dea_key_wrap,
775                                    machine_set_dea_key_wrap);
776     object_class_property_set_description(oc, "dea-key-wrap",
777             "enable/disable DEA key wrapping using the CPACF wrapping key");
778 
779     object_class_property_add(oc, "loadparm", "loadparm",
780                               machine_get_loadparm, machine_set_loadparm,
781                               NULL, NULL);
782     object_class_property_set_description(oc, "loadparm",
783             "Up to 8 chars in set of [A-Za-z0-9. ] (lower case chars converted"
784             " to upper case) to pass to machine loader, boot manager,"
785             " and guest kernel");
786 }
787 
788 static inline void s390_machine_initfn(Object *obj)
789 {
790     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
791 
792     ms->aes_key_wrap = true;
793     ms->dea_key_wrap = true;
794 }
795 
796 static const TypeInfo ccw_machine_info = {
797     .name          = TYPE_S390_CCW_MACHINE,
798     .parent        = TYPE_MACHINE,
799     .abstract      = true,
800     .instance_size = sizeof(S390CcwMachineState),
801     .instance_init = s390_machine_initfn,
802     .class_size = sizeof(S390CcwMachineClass),
803     .class_init    = ccw_machine_class_init,
804     .interfaces = (InterfaceInfo[]) {
805         { TYPE_NMI },
806         { TYPE_HOTPLUG_HANDLER},
807         { }
808     },
809 };
810 
811 #define DEFINE_CCW_MACHINE_IMPL(latest, ...)                                  \
812     static void MACHINE_VER_SYM(class_init, ccw, __VA_ARGS__)(                \
813         ObjectClass *oc,                                                      \
814         void *data)                                                           \
815     {                                                                         \
816         MachineClass *mc = MACHINE_CLASS(oc);                                 \
817         MACHINE_VER_SYM(class_options, ccw, __VA_ARGS__)(mc);                 \
818         mc->desc = "Virtual s390x machine (version " MACHINE_VER_STR(__VA_ARGS__) ")"; \
819         MACHINE_VER_DEPRECATION(__VA_ARGS__);                                 \
820         if (latest) {                                                         \
821             mc->alias = "s390-ccw-virtio";                                    \
822             mc->is_default = true;                                            \
823         }                                                                     \
824     }                                                                         \
825     static void MACHINE_VER_SYM(instance_init, ccw, __VA_ARGS__)(Object *obj) \
826     {                                                                         \
827         MachineState *machine = MACHINE(obj);                                 \
828         current_mc = S390_CCW_MACHINE_CLASS(MACHINE_GET_CLASS(machine));      \
829         MACHINE_VER_SYM(instance_options, ccw, __VA_ARGS__)(machine);         \
830     }                                                                         \
831     static const TypeInfo MACHINE_VER_SYM(info, ccw, __VA_ARGS__) =           \
832     {                                                                         \
833         .name = MACHINE_VER_TYPE_NAME("s390-ccw-virtio", __VA_ARGS__),        \
834         .parent = TYPE_S390_CCW_MACHINE,                                      \
835         .class_init = MACHINE_VER_SYM(class_init, ccw, __VA_ARGS__),          \
836         .instance_init = MACHINE_VER_SYM(instance_init, ccw, __VA_ARGS__),    \
837     };                                                                        \
838     static void MACHINE_VER_SYM(register, ccw, __VA_ARGS__)(void)             \
839     {                                                                         \
840         MACHINE_VER_DELETION(__VA_ARGS__);                                    \
841         type_register_static(&MACHINE_VER_SYM(info, ccw, __VA_ARGS__));       \
842     }                                                                         \
843     type_init(MACHINE_VER_SYM(register, ccw, __VA_ARGS__))
844 
845 #define DEFINE_CCW_MACHINE_AS_LATEST(major, minor) \
846     DEFINE_CCW_MACHINE_IMPL(true, major, minor)
847 
848 #define DEFINE_CCW_MACHINE(major, minor) \
849     DEFINE_CCW_MACHINE_IMPL(false, major, minor)
850 
851 
852 static void ccw_machine_9_2_instance_options(MachineState *machine)
853 {
854 }
855 
856 static void ccw_machine_9_2_class_options(MachineClass *mc)
857 {
858 }
859 DEFINE_CCW_MACHINE_AS_LATEST(9, 2);
860 
861 static void ccw_machine_9_1_instance_options(MachineState *machine)
862 {
863     ccw_machine_9_2_instance_options(machine);
864 }
865 
866 static void ccw_machine_9_1_class_options(MachineClass *mc)
867 {
868     ccw_machine_9_2_class_options(mc);
869     compat_props_add(mc->compat_props, hw_compat_9_1, hw_compat_9_1_len);
870 }
871 DEFINE_CCW_MACHINE(9, 1);
872 
873 static void ccw_machine_9_0_instance_options(MachineState *machine)
874 {
875     ccw_machine_9_1_instance_options(machine);
876 }
877 
878 static void ccw_machine_9_0_class_options(MachineClass *mc)
879 {
880     static GlobalProperty compat[] = {
881         { TYPE_QEMU_S390_FLIC, "migrate-all-state", "off", },
882     };
883 
884     ccw_machine_9_1_class_options(mc);
885     compat_props_add(mc->compat_props, hw_compat_9_0, hw_compat_9_0_len);
886     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
887 }
888 DEFINE_CCW_MACHINE(9, 0);
889 
890 static void ccw_machine_8_2_instance_options(MachineState *machine)
891 {
892     ccw_machine_9_0_instance_options(machine);
893 }
894 
895 static void ccw_machine_8_2_class_options(MachineClass *mc)
896 {
897     ccw_machine_9_0_class_options(mc);
898     compat_props_add(mc->compat_props, hw_compat_8_2, hw_compat_8_2_len);
899 }
900 DEFINE_CCW_MACHINE(8, 2);
901 
902 static void ccw_machine_8_1_instance_options(MachineState *machine)
903 {
904     ccw_machine_8_2_instance_options(machine);
905 }
906 
907 static void ccw_machine_8_1_class_options(MachineClass *mc)
908 {
909     ccw_machine_8_2_class_options(mc);
910     compat_props_add(mc->compat_props, hw_compat_8_1, hw_compat_8_1_len);
911     mc->smp_props.drawers_supported = false;
912     mc->smp_props.books_supported = false;
913 }
914 DEFINE_CCW_MACHINE(8, 1);
915 
916 static void ccw_machine_8_0_instance_options(MachineState *machine)
917 {
918     ccw_machine_8_1_instance_options(machine);
919 }
920 
921 static void ccw_machine_8_0_class_options(MachineClass *mc)
922 {
923     ccw_machine_8_1_class_options(mc);
924     compat_props_add(mc->compat_props, hw_compat_8_0, hw_compat_8_0_len);
925 }
926 DEFINE_CCW_MACHINE(8, 0);
927 
928 static void ccw_machine_7_2_instance_options(MachineState *machine)
929 {
930     ccw_machine_8_0_instance_options(machine);
931 }
932 
933 static void ccw_machine_7_2_class_options(MachineClass *mc)
934 {
935     ccw_machine_8_0_class_options(mc);
936     compat_props_add(mc->compat_props, hw_compat_7_2, hw_compat_7_2_len);
937 }
938 DEFINE_CCW_MACHINE(7, 2);
939 
940 static void ccw_machine_7_1_instance_options(MachineState *machine)
941 {
942     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V7_1 };
943 
944     ccw_machine_7_2_instance_options(machine);
945     s390_cpudef_featoff_greater(16, 1, S390_FEAT_PAIE);
946     s390_set_qemu_cpu_model(0x8561, 15, 1, qemu_cpu_feat);
947 }
948 
949 static void ccw_machine_7_1_class_options(MachineClass *mc)
950 {
951     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
952     static GlobalProperty compat[] = {
953         { TYPE_S390_PCI_DEVICE, "interpret", "off", },
954         { TYPE_S390_PCI_DEVICE, "forwarding-assist", "off", },
955     };
956 
957     ccw_machine_7_2_class_options(mc);
958     compat_props_add(mc->compat_props, hw_compat_7_1, hw_compat_7_1_len);
959     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
960     s390mc->max_threads = S390_MAX_CPUS;
961 }
962 DEFINE_CCW_MACHINE(7, 1);
963 
964 static void ccw_machine_7_0_instance_options(MachineState *machine)
965 {
966     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V7_0 };
967 
968     ccw_machine_7_1_instance_options(machine);
969     s390_set_qemu_cpu_model(0x8561, 15, 1, qemu_cpu_feat);
970 }
971 
972 static void ccw_machine_7_0_class_options(MachineClass *mc)
973 {
974     ccw_machine_7_1_class_options(mc);
975     compat_props_add(mc->compat_props, hw_compat_7_0, hw_compat_7_0_len);
976 }
977 DEFINE_CCW_MACHINE(7, 0);
978 
979 static void ccw_machine_6_2_instance_options(MachineState *machine)
980 {
981     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_2 };
982 
983     ccw_machine_7_0_instance_options(machine);
984     s390_set_qemu_cpu_model(0x3906, 14, 2, qemu_cpu_feat);
985 }
986 
987 static void ccw_machine_6_2_class_options(MachineClass *mc)
988 {
989     ccw_machine_7_0_class_options(mc);
990     compat_props_add(mc->compat_props, hw_compat_6_2, hw_compat_6_2_len);
991 }
992 DEFINE_CCW_MACHINE(6, 2);
993 
994 static void ccw_machine_6_1_instance_options(MachineState *machine)
995 {
996     ccw_machine_6_2_instance_options(machine);
997     s390_cpudef_featoff_greater(16, 1, S390_FEAT_NNPA);
998     s390_cpudef_featoff_greater(16, 1, S390_FEAT_VECTOR_PACKED_DECIMAL_ENH2);
999     s390_cpudef_featoff_greater(16, 1, S390_FEAT_BEAR_ENH);
1000     s390_cpudef_featoff_greater(16, 1, S390_FEAT_RDP);
1001     s390_cpudef_featoff_greater(16, 1, S390_FEAT_PAI);
1002 }
1003 
1004 static void ccw_machine_6_1_class_options(MachineClass *mc)
1005 {
1006     ccw_machine_6_2_class_options(mc);
1007     compat_props_add(mc->compat_props, hw_compat_6_1, hw_compat_6_1_len);
1008     mc->smp_props.prefer_sockets = true;
1009 }
1010 DEFINE_CCW_MACHINE(6, 1);
1011 
1012 static void ccw_machine_6_0_instance_options(MachineState *machine)
1013 {
1014     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_0 };
1015 
1016     ccw_machine_6_1_instance_options(machine);
1017     s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat);
1018 }
1019 
1020 static void ccw_machine_6_0_class_options(MachineClass *mc)
1021 {
1022     ccw_machine_6_1_class_options(mc);
1023     compat_props_add(mc->compat_props, hw_compat_6_0, hw_compat_6_0_len);
1024 }
1025 DEFINE_CCW_MACHINE(6, 0);
1026 
1027 static void ccw_machine_5_2_instance_options(MachineState *machine)
1028 {
1029     ccw_machine_6_0_instance_options(machine);
1030 }
1031 
1032 static void ccw_machine_5_2_class_options(MachineClass *mc)
1033 {
1034     ccw_machine_6_0_class_options(mc);
1035     compat_props_add(mc->compat_props, hw_compat_5_2, hw_compat_5_2_len);
1036 }
1037 DEFINE_CCW_MACHINE(5, 2);
1038 
1039 static void ccw_machine_5_1_instance_options(MachineState *machine)
1040 {
1041     ccw_machine_5_2_instance_options(machine);
1042 }
1043 
1044 static void ccw_machine_5_1_class_options(MachineClass *mc)
1045 {
1046     ccw_machine_5_2_class_options(mc);
1047     compat_props_add(mc->compat_props, hw_compat_5_1, hw_compat_5_1_len);
1048 }
1049 DEFINE_CCW_MACHINE(5, 1);
1050 
1051 static void ccw_machine_5_0_instance_options(MachineState *machine)
1052 {
1053     ccw_machine_5_1_instance_options(machine);
1054 }
1055 
1056 static void ccw_machine_5_0_class_options(MachineClass *mc)
1057 {
1058     ccw_machine_5_1_class_options(mc);
1059     compat_props_add(mc->compat_props, hw_compat_5_0, hw_compat_5_0_len);
1060 }
1061 DEFINE_CCW_MACHINE(5, 0);
1062 
1063 static void ccw_machine_4_2_instance_options(MachineState *machine)
1064 {
1065     ccw_machine_5_0_instance_options(machine);
1066 }
1067 
1068 static void ccw_machine_4_2_class_options(MachineClass *mc)
1069 {
1070     ccw_machine_5_0_class_options(mc);
1071     mc->fixup_ram_size = s390_fixup_ram_size;
1072     compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len);
1073 }
1074 DEFINE_CCW_MACHINE(4, 2);
1075 
1076 static void ccw_machine_4_1_instance_options(MachineState *machine)
1077 {
1078     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_1 };
1079     ccw_machine_4_2_instance_options(machine);
1080     s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat);
1081 }
1082 
1083 static void ccw_machine_4_1_class_options(MachineClass *mc)
1084 {
1085     ccw_machine_4_2_class_options(mc);
1086     compat_props_add(mc->compat_props, hw_compat_4_1, hw_compat_4_1_len);
1087 }
1088 DEFINE_CCW_MACHINE(4, 1);
1089 
1090 static void ccw_machine_4_0_instance_options(MachineState *machine)
1091 {
1092     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_0 };
1093     ccw_machine_4_1_instance_options(machine);
1094     s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat);
1095 }
1096 
1097 static void ccw_machine_4_0_class_options(MachineClass *mc)
1098 {
1099     ccw_machine_4_1_class_options(mc);
1100     compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len);
1101 }
1102 DEFINE_CCW_MACHINE(4, 0);
1103 
1104 static void ccw_machine_3_1_instance_options(MachineState *machine)
1105 {
1106     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V3_1 };
1107     ccw_machine_4_0_instance_options(machine);
1108     s390_cpudef_featoff_greater(14, 1, S390_FEAT_MULTIPLE_EPOCH);
1109     s390_cpudef_group_featoff_greater(14, 1, S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF);
1110     s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat);
1111 }
1112 
1113 static void ccw_machine_3_1_class_options(MachineClass *mc)
1114 {
1115     ccw_machine_4_0_class_options(mc);
1116     compat_props_add(mc->compat_props, hw_compat_3_1, hw_compat_3_1_len);
1117 }
1118 DEFINE_CCW_MACHINE(3, 1);
1119 
1120 static void ccw_machine_3_0_instance_options(MachineState *machine)
1121 {
1122     ccw_machine_3_1_instance_options(machine);
1123 }
1124 
1125 static void ccw_machine_3_0_class_options(MachineClass *mc)
1126 {
1127     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
1128 
1129     s390mc->hpage_1m_allowed = false;
1130     ccw_machine_3_1_class_options(mc);
1131     compat_props_add(mc->compat_props, hw_compat_3_0, hw_compat_3_0_len);
1132 }
1133 DEFINE_CCW_MACHINE(3, 0);
1134 
1135 static void ccw_machine_2_12_instance_options(MachineState *machine)
1136 {
1137     ccw_machine_3_0_instance_options(machine);
1138     s390_cpudef_featoff_greater(11, 1, S390_FEAT_PPA15);
1139     s390_cpudef_featoff_greater(11, 1, S390_FEAT_BPB);
1140 }
1141 
1142 static void ccw_machine_2_12_class_options(MachineClass *mc)
1143 {
1144     ccw_machine_3_0_class_options(mc);
1145     compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len);
1146 }
1147 DEFINE_CCW_MACHINE(2, 12);
1148 
1149 #ifdef CONFIG_S390X_LEGACY_CPUS
1150 
1151 static void ccw_machine_2_11_instance_options(MachineState *machine)
1152 {
1153     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 };
1154     ccw_machine_2_12_instance_options(machine);
1155 
1156     /* before 2.12 we emulated the very first z900 */
1157     s390_set_qemu_cpu_model(0x2064, 7, 1, qemu_cpu_feat);
1158 }
1159 
1160 static void ccw_machine_2_11_class_options(MachineClass *mc)
1161 {
1162     static GlobalProperty compat[] = {
1163         { TYPE_SCLP_EVENT_FACILITY, "allow_all_mask_sizes", "off", },
1164     };
1165 
1166     ccw_machine_2_12_class_options(mc);
1167     compat_props_add(mc->compat_props, hw_compat_2_11, hw_compat_2_11_len);
1168     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
1169 }
1170 DEFINE_CCW_MACHINE(2, 11);
1171 
1172 static void ccw_machine_2_10_instance_options(MachineState *machine)
1173 {
1174     ccw_machine_2_11_instance_options(machine);
1175 }
1176 
1177 static void ccw_machine_2_10_class_options(MachineClass *mc)
1178 {
1179     ccw_machine_2_11_class_options(mc);
1180     compat_props_add(mc->compat_props, hw_compat_2_10, hw_compat_2_10_len);
1181 }
1182 DEFINE_CCW_MACHINE(2, 10);
1183 
1184 static void ccw_machine_2_9_instance_options(MachineState *machine)
1185 {
1186     ccw_machine_2_10_instance_options(machine);
1187     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ESOP);
1188     s390_cpudef_featoff_greater(12, 1, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2);
1189     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ZPCI);
1190     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_INT_SUPPRESSION);
1191     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_EVENT_NOTIFICATION);
1192 }
1193 
1194 static void ccw_machine_2_9_class_options(MachineClass *mc)
1195 {
1196     static GlobalProperty compat[] = {
1197         { TYPE_S390_STATTRIB, "migration-enabled", "off", },
1198         { TYPE_S390_FLIC_COMMON, "migration-enabled", "off", },
1199     };
1200 
1201     ccw_machine_2_10_class_options(mc);
1202     compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len);
1203     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
1204     css_migration_enabled = false;
1205 }
1206 DEFINE_CCW_MACHINE(2, 9);
1207 
1208 static void ccw_machine_2_8_instance_options(MachineState *machine)
1209 {
1210     ccw_machine_2_9_instance_options(machine);
1211 }
1212 
1213 static void ccw_machine_2_8_class_options(MachineClass *mc)
1214 {
1215     static GlobalProperty compat[] = {
1216         { TYPE_S390_FLIC_COMMON, "adapter_routes_max_batch", "64", },
1217     };
1218 
1219     ccw_machine_2_9_class_options(mc);
1220     compat_props_add(mc->compat_props, hw_compat_2_8, hw_compat_2_8_len);
1221     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
1222 }
1223 DEFINE_CCW_MACHINE(2, 8);
1224 
1225 static void ccw_machine_2_7_instance_options(MachineState *machine)
1226 {
1227     ccw_machine_2_8_instance_options(machine);
1228 }
1229 
1230 static void ccw_machine_2_7_class_options(MachineClass *mc)
1231 {
1232     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
1233 
1234     s390mc->cpu_model_allowed = false;
1235     ccw_machine_2_8_class_options(mc);
1236     compat_props_add(mc->compat_props, hw_compat_2_7, hw_compat_2_7_len);
1237 }
1238 DEFINE_CCW_MACHINE(2, 7);
1239 
1240 static void ccw_machine_2_6_instance_options(MachineState *machine)
1241 {
1242     ccw_machine_2_7_instance_options(machine);
1243 }
1244 
1245 static void ccw_machine_2_6_class_options(MachineClass *mc)
1246 {
1247     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
1248     static GlobalProperty compat[] = {
1249         { TYPE_S390_IPL, "iplbext_migration", "off", },
1250          { TYPE_VIRTUAL_CSS_BRIDGE, "css_dev_path", "off", },
1251     };
1252 
1253     s390mc->ri_allowed = false;
1254     ccw_machine_2_7_class_options(mc);
1255     compat_props_add(mc->compat_props, hw_compat_2_6, hw_compat_2_6_len);
1256     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
1257 }
1258 DEFINE_CCW_MACHINE(2, 6);
1259 
1260 static void ccw_machine_2_5_instance_options(MachineState *machine)
1261 {
1262     ccw_machine_2_6_instance_options(machine);
1263 }
1264 
1265 static void ccw_machine_2_5_class_options(MachineClass *mc)
1266 {
1267     ccw_machine_2_6_class_options(mc);
1268     compat_props_add(mc->compat_props, hw_compat_2_5, hw_compat_2_5_len);
1269 }
1270 DEFINE_CCW_MACHINE(2, 5);
1271 
1272 static void ccw_machine_2_4_instance_options(MachineState *machine)
1273 {
1274     ccw_machine_2_5_instance_options(machine);
1275 }
1276 
1277 static void ccw_machine_2_4_class_options(MachineClass *mc)
1278 {
1279     static GlobalProperty compat[] = {
1280         { TYPE_S390_SKEYS, "migration-enabled", "off", },
1281         { "virtio-blk-ccw", "max_revision", "0", },
1282         { "virtio-balloon-ccw", "max_revision", "0", },
1283         { "virtio-serial-ccw", "max_revision", "0", },
1284         { "virtio-9p-ccw", "max_revision", "0", },
1285         { "virtio-rng-ccw", "max_revision", "0", },
1286         { "virtio-net-ccw", "max_revision", "0", },
1287         { "virtio-scsi-ccw", "max_revision", "0", },
1288         { "vhost-scsi-ccw", "max_revision", "0", },
1289     };
1290 
1291     ccw_machine_2_5_class_options(mc);
1292     compat_props_add(mc->compat_props, hw_compat_2_4, hw_compat_2_4_len);
1293     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
1294 }
1295 DEFINE_CCW_MACHINE(2, 4);
1296 
1297 #endif
1298 
1299 static void ccw_machine_register_types(void)
1300 {
1301     type_register_static(&ccw_machine_info);
1302 }
1303 
1304 type_init(ccw_machine_register_types)
1305