xref: /openbmc/qemu/hw/s390x/s390-virtio-ccw.c (revision 414b180d)
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 queue = args[1];
131     SubchDev *sch;
132     int cssid, ssid, schid, m;
133 
134     if (ioinst_disassemble_sch_ident(subch_id, &m, &cssid, &ssid, &schid)) {
135         return -EINVAL;
136     }
137     sch = css_find_subch(m, cssid, ssid, schid);
138     if (!sch || !css_subch_visible(sch)) {
139         return -EINVAL;
140     }
141     if (queue >= VIRTIO_QUEUE_MAX) {
142         return -EINVAL;
143     }
144     virtio_queue_notify(virtio_ccw_get_vdev(sch), queue);
145     return 0;
146 
147 }
148 
149 static int virtio_ccw_hcall_early_printk(const uint64_t *args)
150 {
151     uint64_t mem = args[0];
152     MachineState *ms = MACHINE(qdev_get_machine());
153 
154     if (mem < ms->ram_size) {
155         /* Early printk */
156         return 0;
157     }
158     return -EINVAL;
159 }
160 
161 static void virtio_ccw_register_hcalls(void)
162 {
163     s390_register_virtio_hypercall(KVM_S390_VIRTIO_CCW_NOTIFY,
164                                    virtio_ccw_hcall_notify);
165     /* Tolerate early printk. */
166     s390_register_virtio_hypercall(KVM_S390_VIRTIO_NOTIFY,
167                                    virtio_ccw_hcall_early_printk);
168 }
169 
170 static void s390_memory_init(MemoryRegion *ram)
171 {
172     MemoryRegion *sysmem = get_system_memory();
173 
174     /* allocate RAM for core */
175     memory_region_add_subregion(sysmem, 0, ram);
176 
177     /*
178      * Configure the maximum page size. As no memory devices were created
179      * yet, this is the page size of initial memory only.
180      */
181     s390_set_max_pagesize(qemu_maxrampagesize(), &error_fatal);
182     /* Initialize storage key device */
183     s390_skeys_init();
184     /* Initialize storage attributes device */
185     s390_stattrib_init();
186 }
187 
188 static void s390_init_ipl_dev(const char *kernel_filename,
189                               const char *kernel_cmdline,
190                               const char *initrd_filename, const char *firmware,
191                               const char *netboot_fw, bool enforce_bios)
192 {
193     Object *new = object_new(TYPE_S390_IPL);
194     DeviceState *dev = DEVICE(new);
195     char *netboot_fw_prop;
196 
197     if (kernel_filename) {
198         qdev_prop_set_string(dev, "kernel", kernel_filename);
199     }
200     if (initrd_filename) {
201         qdev_prop_set_string(dev, "initrd", initrd_filename);
202     }
203     qdev_prop_set_string(dev, "cmdline", kernel_cmdline);
204     qdev_prop_set_string(dev, "firmware", firmware);
205     qdev_prop_set_bit(dev, "enforce_bios", enforce_bios);
206     netboot_fw_prop = object_property_get_str(new, "netboot_fw", &error_abort);
207     if (!strlen(netboot_fw_prop)) {
208         qdev_prop_set_string(dev, "netboot_fw", netboot_fw);
209     }
210     g_free(netboot_fw_prop);
211     object_property_add_child(qdev_get_machine(), TYPE_S390_IPL,
212                               new);
213     object_unref(new);
214     qdev_realize(dev, NULL, &error_fatal);
215 }
216 
217 static void s390_create_virtio_net(BusState *bus, const char *name)
218 {
219     DeviceState *dev;
220     int cnt = 0;
221 
222     while ((dev = qemu_create_nic_device(name, true, "virtio"))) {
223         g_autofree char *childname = g_strdup_printf("%s[%d]", name, cnt++);
224         object_property_add_child(OBJECT(bus), childname, OBJECT(dev));
225         qdev_realize_and_unref(dev, bus, &error_fatal);
226     }
227 }
228 
229 static void s390_create_sclpconsole(SCLPDevice *sclp,
230                                     const char *type, Chardev *chardev)
231 {
232     SCLPEventFacility *ef = sclp->event_facility;
233     BusState *ev_fac_bus = sclp_get_event_facility_bus(ef);
234     DeviceState *dev;
235 
236     dev = qdev_new(type);
237     object_property_add_child(OBJECT(ef), type, OBJECT(dev));
238     qdev_prop_set_chr(dev, "chardev", chardev);
239     qdev_realize_and_unref(dev, ev_fac_bus, &error_fatal);
240 }
241 
242 static void ccw_init(MachineState *machine)
243 {
244     MachineClass *mc = MACHINE_GET_CLASS(machine);
245     S390CcwMachineState *ms = S390_CCW_MACHINE(machine);
246     int ret;
247     VirtualCssBus *css_bus;
248     DeviceState *dev;
249 
250     ms->sclp = SCLP(object_new(TYPE_SCLP));
251     object_property_add_child(OBJECT(machine), TYPE_SCLP, OBJECT(ms->sclp));
252     qdev_realize_and_unref(DEVICE(ms->sclp), NULL, &error_fatal);
253 
254     /* init memory + setup max page size. Required for the CPU model */
255     s390_memory_init(machine->ram);
256 
257     /* init CPUs (incl. CPU model) early so s390_has_feature() works */
258     s390_init_cpus(machine);
259 
260     /* Need CPU model to be determined before we can set up PV */
261     if (machine->cgs) {
262         confidential_guest_kvm_init(machine->cgs, &error_fatal);
263     }
264 
265     s390_flic_init();
266 
267     /* init the SIGP facility */
268     s390_init_sigp();
269 
270     /* create AP bridge and bus(es) */
271     s390_init_ap();
272 
273     /* get a BUS */
274     css_bus = virtual_css_bus_init();
275     s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline,
276                       machine->initrd_filename,
277                       machine->firmware ?: "s390-ccw.img",
278                       "s390-netboot.img", true);
279 
280     dev = qdev_new(TYPE_S390_PCI_HOST_BRIDGE);
281     object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE,
282                               OBJECT(dev));
283     sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
284 
285     /* register hypercalls */
286     virtio_ccw_register_hcalls();
287 
288     s390_enable_css_support(s390_cpu_addr2state(0));
289 
290     ret = css_create_css_image(VIRTUAL_CSSID, true);
291     assert(ret == 0);
292 
293     css_register_vmstate();
294 
295     /* Create VirtIO network adapters */
296     s390_create_virtio_net(BUS(css_bus), mc->default_nic);
297 
298     /* init consoles */
299     if (serial_hd(0)) {
300         s390_create_sclpconsole(ms->sclp, "sclpconsole", serial_hd(0));
301     }
302     if (serial_hd(1)) {
303         s390_create_sclpconsole(ms->sclp, "sclplmconsole", serial_hd(1));
304     }
305 
306     /* init the TOD clock */
307     s390_init_tod();
308 }
309 
310 static void s390_cpu_plug(HotplugHandler *hotplug_dev,
311                         DeviceState *dev, Error **errp)
312 {
313     ERRP_GUARD();
314     MachineState *ms = MACHINE(hotplug_dev);
315     S390CPU *cpu = S390_CPU(dev);
316 
317     g_assert(!ms->possible_cpus->cpus[cpu->env.core_id].cpu);
318     ms->possible_cpus->cpus[cpu->env.core_id].cpu = CPU(dev);
319 
320     if (s390_has_topology()) {
321         s390_topology_setup_cpu(ms, cpu, errp);
322         if (*errp) {
323             return;
324         }
325     }
326 
327     if (dev->hotplugged) {
328         raise_irq_cpu_hotplug();
329     }
330 }
331 
332 static inline void s390_do_cpu_ipl(CPUState *cs, run_on_cpu_data arg)
333 {
334     S390CPU *cpu = S390_CPU(cs);
335 
336     s390_ipl_prepare_cpu(cpu);
337     s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu);
338 }
339 
340 static void s390_machine_unprotect(S390CcwMachineState *ms)
341 {
342     if (!s390_pv_vm_try_disable_async(ms)) {
343         s390_pv_vm_disable();
344     }
345     ms->pv = false;
346     migrate_del_blocker(&pv_mig_blocker);
347     ram_block_discard_disable(false);
348 }
349 
350 static int s390_machine_protect(S390CcwMachineState *ms)
351 {
352     Error *local_err = NULL;
353     int rc;
354 
355    /*
356     * Discarding of memory in RAM blocks does not work as expected with
357     * protected VMs. Sharing and unsharing pages would be required. Disable
358     * it for now, until until we have a solution to make at least Linux
359     * guests either support it (e.g., virtio-balloon) or fail gracefully.
360     */
361     rc = ram_block_discard_disable(true);
362     if (rc) {
363         error_report("protected VMs: cannot disable RAM discard");
364         return rc;
365     }
366 
367     error_setg(&pv_mig_blocker,
368                "protected VMs are currently not migratable.");
369     rc = migrate_add_blocker(&pv_mig_blocker, &local_err);
370     if (rc) {
371         ram_block_discard_disable(false);
372         error_report_err(local_err);
373         return rc;
374     }
375 
376     /* Create SE VM */
377     rc = s390_pv_vm_enable();
378     if (rc) {
379         ram_block_discard_disable(false);
380         migrate_del_blocker(&pv_mig_blocker);
381         return rc;
382     }
383 
384     ms->pv = true;
385 
386     /* Will return 0 if API is not available since it's not vital */
387     rc = s390_pv_query_info();
388     if (rc) {
389         goto out_err;
390     }
391 
392     /* Set SE header and unpack */
393     rc = s390_ipl_prepare_pv_header(&local_err);
394     if (rc) {
395         goto out_err;
396     }
397 
398     /* Decrypt image */
399     rc = s390_ipl_pv_unpack();
400     if (rc) {
401         goto out_err;
402     }
403 
404     /* Verify integrity */
405     rc = s390_pv_verify();
406     if (rc) {
407         goto out_err;
408     }
409     return rc;
410 
411 out_err:
412     if (local_err) {
413         error_report_err(local_err);
414     }
415     s390_machine_unprotect(ms);
416     return rc;
417 }
418 
419 static void s390_pv_prepare_reset(S390CcwMachineState *ms)
420 {
421     CPUState *cs;
422 
423     if (!s390_is_pv()) {
424         return;
425     }
426     /* Unsharing requires all cpus to be stopped */
427     CPU_FOREACH(cs) {
428         s390_cpu_set_state(S390_CPU_STATE_STOPPED, S390_CPU(cs));
429     }
430     s390_pv_unshare();
431     s390_pv_prep_reset();
432 }
433 
434 static void s390_machine_reset(MachineState *machine, ShutdownCause reason)
435 {
436     S390CcwMachineState *ms = S390_CCW_MACHINE(machine);
437     enum s390_reset reset_type;
438     CPUState *cs, *t;
439     S390CPU *cpu;
440 
441     /* get the reset parameters, reset them once done */
442     s390_ipl_get_reset_request(&cs, &reset_type);
443 
444     /* all CPUs are paused and synchronized at this point */
445     s390_cmma_reset();
446 
447     cpu = S390_CPU(cs);
448 
449     switch (reset_type) {
450     case S390_RESET_EXTERNAL:
451     case S390_RESET_REIPL:
452         /*
453          * Reset the subsystem which includes a AP reset. If a PV
454          * guest had APQNs attached the AP reset is a prerequisite to
455          * unprotecting since the UV checks if all APQNs are reset.
456          */
457         subsystem_reset();
458         if (s390_is_pv()) {
459             s390_machine_unprotect(ms);
460         }
461 
462         /*
463          * Device reset includes CPU clear resets so this has to be
464          * done AFTER the unprotect call above.
465          */
466         qemu_devices_reset(reason);
467         s390_crypto_reset();
468 
469         /* configure and start the ipl CPU only */
470         run_on_cpu(cs, s390_do_cpu_ipl, RUN_ON_CPU_NULL);
471         break;
472     case S390_RESET_MODIFIED_CLEAR:
473         /*
474          * Subsystem reset needs to be done before we unshare memory
475          * and lose access to VIRTIO structures in guest memory.
476          */
477         subsystem_reset();
478         s390_crypto_reset();
479         s390_pv_prepare_reset(ms);
480         CPU_FOREACH(t) {
481             run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL);
482         }
483         run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL);
484         break;
485     case S390_RESET_LOAD_NORMAL:
486         /*
487          * Subsystem reset needs to be done before we unshare memory
488          * and lose access to VIRTIO structures in guest memory.
489          */
490         subsystem_reset();
491         s390_pv_prepare_reset(ms);
492         CPU_FOREACH(t) {
493             if (t == cs) {
494                 continue;
495             }
496             run_on_cpu(t, s390_do_cpu_reset, RUN_ON_CPU_NULL);
497         }
498         run_on_cpu(cs, s390_do_cpu_initial_reset, RUN_ON_CPU_NULL);
499         run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL);
500         break;
501     case S390_RESET_PV: /* Subcode 10 */
502         subsystem_reset();
503         s390_crypto_reset();
504 
505         CPU_FOREACH(t) {
506             if (t == cs) {
507                 continue;
508             }
509             run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL);
510         }
511         run_on_cpu(cs, s390_do_cpu_reset, RUN_ON_CPU_NULL);
512 
513         if (s390_machine_protect(ms)) {
514             s390_pv_inject_reset_error(cs);
515             /*
516              * Continue after the diag308 so the guest knows something
517              * went wrong.
518              */
519             s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu);
520             return;
521         }
522 
523         run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL);
524         break;
525     default:
526         g_assert_not_reached();
527     }
528 
529     CPU_FOREACH(t) {
530         run_on_cpu(t, s390_do_cpu_set_diag318, RUN_ON_CPU_HOST_ULONG(0));
531     }
532     s390_ipl_clear_reset_request();
533 }
534 
535 static void s390_machine_device_plug(HotplugHandler *hotplug_dev,
536                                      DeviceState *dev, Error **errp)
537 {
538     if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
539         s390_cpu_plug(hotplug_dev, dev, errp);
540     }
541 }
542 
543 static void s390_machine_device_unplug_request(HotplugHandler *hotplug_dev,
544                                                DeviceState *dev, Error **errp)
545 {
546     if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
547         error_setg(errp, "CPU hot unplug not supported on this machine");
548         return;
549     }
550 }
551 
552 static CpuInstanceProperties s390_cpu_index_to_props(MachineState *ms,
553                                                      unsigned cpu_index)
554 {
555     MachineClass *mc = MACHINE_GET_CLASS(ms);
556     const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms);
557 
558     assert(cpu_index < possible_cpus->len);
559     return possible_cpus->cpus[cpu_index].props;
560 }
561 
562 static const CPUArchIdList *s390_possible_cpu_arch_ids(MachineState *ms)
563 {
564     int i;
565     unsigned int max_cpus = ms->smp.max_cpus;
566 
567     if (ms->possible_cpus) {
568         g_assert(ms->possible_cpus && ms->possible_cpus->len == max_cpus);
569         return ms->possible_cpus;
570     }
571 
572     ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) +
573                                   sizeof(CPUArchId) * max_cpus);
574     ms->possible_cpus->len = max_cpus;
575     for (i = 0; i < ms->possible_cpus->len; i++) {
576         CpuInstanceProperties *props = &ms->possible_cpus->cpus[i].props;
577 
578         ms->possible_cpus->cpus[i].type = ms->cpu_type;
579         ms->possible_cpus->cpus[i].vcpus_count = 1;
580         ms->possible_cpus->cpus[i].arch_id = i;
581 
582         props->has_core_id = true;
583         props->core_id = i;
584         props->has_socket_id = true;
585         props->socket_id = s390_std_socket(i, &ms->smp);
586         props->has_book_id = true;
587         props->book_id = s390_std_book(i, &ms->smp);
588         props->has_drawer_id = true;
589         props->drawer_id = s390_std_drawer(i, &ms->smp);
590     }
591 
592     return ms->possible_cpus;
593 }
594 
595 static HotplugHandler *s390_get_hotplug_handler(MachineState *machine,
596                                                 DeviceState *dev)
597 {
598     if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
599         return HOTPLUG_HANDLER(machine);
600     }
601     return NULL;
602 }
603 
604 static void s390_nmi(NMIState *n, int cpu_index, Error **errp)
605 {
606     CPUState *cs = qemu_get_cpu(cpu_index);
607 
608     s390_cpu_restart(S390_CPU(cs));
609 }
610 
611 static ram_addr_t s390_fixup_ram_size(ram_addr_t sz)
612 {
613     /* same logic as in sclp.c */
614     int increment_size = 20;
615     ram_addr_t newsz;
616 
617     while ((sz >> increment_size) > MAX_STORAGE_INCREMENTS) {
618         increment_size++;
619     }
620     newsz = sz >> increment_size << increment_size;
621 
622     if (sz != newsz) {
623         qemu_printf("Ram size %" PRIu64 "MB was fixed up to %" PRIu64
624                     "MB to match machine restrictions. Consider updating "
625                     "the guest definition.\n", (uint64_t) (sz / MiB),
626                     (uint64_t) (newsz / MiB));
627     }
628     return newsz;
629 }
630 
631 static inline bool machine_get_aes_key_wrap(Object *obj, Error **errp)
632 {
633     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
634 
635     return ms->aes_key_wrap;
636 }
637 
638 static inline void machine_set_aes_key_wrap(Object *obj, bool value,
639                                             Error **errp)
640 {
641     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
642 
643     ms->aes_key_wrap = value;
644 }
645 
646 static inline bool machine_get_dea_key_wrap(Object *obj, Error **errp)
647 {
648     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
649 
650     return ms->dea_key_wrap;
651 }
652 
653 static inline void machine_set_dea_key_wrap(Object *obj, bool value,
654                                             Error **errp)
655 {
656     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
657 
658     ms->dea_key_wrap = value;
659 }
660 
661 static S390CcwMachineClass *current_mc;
662 
663 /*
664  * Get the class of the s390-ccw-virtio machine that is currently in use.
665  * Note: libvirt is using the "none" machine to probe for the features of the
666  * host CPU, so in case this is called with the "none" machine, the function
667  * returns the TYPE_S390_CCW_MACHINE base class. In this base class, all the
668  * various "*_allowed" variables are enabled, so that the *_allowed() wrappers
669  * below return the correct default value for the "none" machine.
670  *
671  * Attention! Do *not* add additional new wrappers for CPU features (e.g. like
672  * the ri_allowed() wrapper) via this mechanism anymore. CPU features should
673  * be handled via the CPU models, i.e. checking with cpu_model_allowed() during
674  * CPU initialization and s390_has_feat() later should be sufficient.
675  */
676 static S390CcwMachineClass *get_machine_class(void)
677 {
678     if (unlikely(!current_mc)) {
679         /*
680         * No s390 ccw machine was instantiated, we are likely to
681         * be called for the 'none' machine. The properties will
682         * have their after-initialization values.
683         */
684         current_mc = S390_CCW_MACHINE_CLASS(
685                      object_class_by_name(TYPE_S390_CCW_MACHINE));
686     }
687     return current_mc;
688 }
689 
690 bool ri_allowed(void)
691 {
692     return get_machine_class()->ri_allowed;
693 }
694 
695 bool cpu_model_allowed(void)
696 {
697     return get_machine_class()->cpu_model_allowed;
698 }
699 
700 bool hpage_1m_allowed(void)
701 {
702     return get_machine_class()->hpage_1m_allowed;
703 }
704 
705 static void machine_get_loadparm(Object *obj, Visitor *v,
706                                  const char *name, void *opaque,
707                                  Error **errp)
708 {
709     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
710     char *str = g_strndup((char *) ms->loadparm, sizeof(ms->loadparm));
711 
712     visit_type_str(v, name, &str, errp);
713     g_free(str);
714 }
715 
716 static void machine_set_loadparm(Object *obj, Visitor *v,
717                                  const char *name, void *opaque,
718                                  Error **errp)
719 {
720     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
721     char *val;
722     int i;
723 
724     if (!visit_type_str(v, name, &val, errp)) {
725         return;
726     }
727 
728     for (i = 0; i < sizeof(ms->loadparm) && val[i]; i++) {
729         uint8_t c = qemu_toupper(val[i]); /* mimic HMC */
730 
731         if (('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || (c == '.') ||
732             (c == ' ')) {
733             ms->loadparm[i] = c;
734         } else {
735             error_setg(errp, "LOADPARM: invalid character '%c' (ASCII 0x%02x)",
736                        c, c);
737             return;
738         }
739     }
740 
741     for (; i < sizeof(ms->loadparm); i++) {
742         ms->loadparm[i] = ' '; /* pad right with spaces */
743     }
744 }
745 
746 static void ccw_machine_class_init(ObjectClass *oc, void *data)
747 {
748     MachineClass *mc = MACHINE_CLASS(oc);
749     NMIClass *nc = NMI_CLASS(oc);
750     HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc);
751     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
752 
753     s390mc->ri_allowed = true;
754     s390mc->cpu_model_allowed = true;
755     s390mc->hpage_1m_allowed = true;
756     s390mc->max_threads = 1;
757     mc->init = ccw_init;
758     mc->reset = s390_machine_reset;
759     mc->block_default_type = IF_VIRTIO;
760     mc->no_cdrom = 1;
761     mc->no_floppy = 1;
762     mc->no_parallel = 1;
763     mc->no_sdcard = 1;
764     mc->max_cpus = S390_MAX_CPUS;
765     mc->has_hotpluggable_cpus = true;
766     mc->smp_props.books_supported = true;
767     mc->smp_props.drawers_supported = true;
768     assert(!mc->get_hotplug_handler);
769     mc->get_hotplug_handler = s390_get_hotplug_handler;
770     mc->cpu_index_to_instance_props = s390_cpu_index_to_props;
771     mc->possible_cpu_arch_ids = s390_possible_cpu_arch_ids;
772     /* it is overridden with 'host' cpu *in kvm_arch_init* */
773     mc->default_cpu_type = S390_CPU_TYPE_NAME("qemu");
774     hc->plug = s390_machine_device_plug;
775     hc->unplug_request = s390_machine_device_unplug_request;
776     nc->nmi_monitor_handler = s390_nmi;
777     mc->default_ram_id = "s390.ram";
778     mc->default_nic = "virtio-net-ccw";
779 
780     object_class_property_add_bool(oc, "aes-key-wrap",
781                                    machine_get_aes_key_wrap,
782                                    machine_set_aes_key_wrap);
783     object_class_property_set_description(oc, "aes-key-wrap",
784             "enable/disable AES key wrapping using the CPACF wrapping key");
785 
786     object_class_property_add_bool(oc, "dea-key-wrap",
787                                    machine_get_dea_key_wrap,
788                                    machine_set_dea_key_wrap);
789     object_class_property_set_description(oc, "dea-key-wrap",
790             "enable/disable DEA key wrapping using the CPACF wrapping key");
791 
792     object_class_property_add(oc, "loadparm", "loadparm",
793                               machine_get_loadparm, machine_set_loadparm,
794                               NULL, NULL);
795     object_class_property_set_description(oc, "loadparm",
796             "Up to 8 chars in set of [A-Za-z0-9. ] (lower case chars converted"
797             " to upper case) to pass to machine loader, boot manager,"
798             " and guest kernel");
799 }
800 
801 static inline void s390_machine_initfn(Object *obj)
802 {
803     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
804 
805     ms->aes_key_wrap = true;
806     ms->dea_key_wrap = true;
807 }
808 
809 static const TypeInfo ccw_machine_info = {
810     .name          = TYPE_S390_CCW_MACHINE,
811     .parent        = TYPE_MACHINE,
812     .abstract      = true,
813     .instance_size = sizeof(S390CcwMachineState),
814     .instance_init = s390_machine_initfn,
815     .class_size = sizeof(S390CcwMachineClass),
816     .class_init    = ccw_machine_class_init,
817     .interfaces = (InterfaceInfo[]) {
818         { TYPE_NMI },
819         { TYPE_HOTPLUG_HANDLER},
820         { }
821     },
822 };
823 
824 #define DEFINE_CCW_MACHINE_IMPL(latest, ...)                                  \
825     static void MACHINE_VER_SYM(class_init, ccw, __VA_ARGS__)(                \
826         ObjectClass *oc,                                                      \
827         void *data)                                                           \
828     {                                                                         \
829         MachineClass *mc = MACHINE_CLASS(oc);                                 \
830         MACHINE_VER_SYM(class_options, ccw, __VA_ARGS__)(mc);                 \
831         mc->desc = "Virtual s390x machine (version " MACHINE_VER_STR(__VA_ARGS__) ")"; \
832         MACHINE_VER_DEPRECATION(__VA_ARGS__);                                 \
833         if (latest) {                                                         \
834             mc->alias = "s390-ccw-virtio";                                    \
835             mc->is_default = true;                                            \
836         }                                                                     \
837     }                                                                         \
838     static void MACHINE_VER_SYM(instance_init, ccw, __VA_ARGS__)(Object *obj) \
839     {                                                                         \
840         MachineState *machine = MACHINE(obj);                                 \
841         current_mc = S390_CCW_MACHINE_CLASS(MACHINE_GET_CLASS(machine));      \
842         MACHINE_VER_SYM(instance_options, ccw, __VA_ARGS__)(machine);         \
843     }                                                                         \
844     static const TypeInfo MACHINE_VER_SYM(info, ccw, __VA_ARGS__) =           \
845     {                                                                         \
846         .name = MACHINE_VER_TYPE_NAME("s390-ccw-virtio", __VA_ARGS__),        \
847         .parent = TYPE_S390_CCW_MACHINE,                                      \
848         .class_init = MACHINE_VER_SYM(class_init, ccw, __VA_ARGS__),          \
849         .instance_init = MACHINE_VER_SYM(instance_init, ccw, __VA_ARGS__),    \
850     };                                                                        \
851     static void MACHINE_VER_SYM(register, ccw, __VA_ARGS__)(void)             \
852     {                                                                         \
853         MACHINE_VER_DELETION(__VA_ARGS__);                                    \
854         type_register_static(&MACHINE_VER_SYM(info, ccw, __VA_ARGS__));       \
855     }                                                                         \
856     type_init(MACHINE_VER_SYM(register, ccw, __VA_ARGS__))
857 
858 #define DEFINE_CCW_MACHINE_AS_LATEST(major, minor) \
859     DEFINE_CCW_MACHINE_IMPL(true, major, minor)
860 
861 #define DEFINE_CCW_MACHINE(major, minor) \
862     DEFINE_CCW_MACHINE_IMPL(false, major, minor)
863 
864 
865 static void ccw_machine_9_1_instance_options(MachineState *machine)
866 {
867 }
868 
869 static void ccw_machine_9_1_class_options(MachineClass *mc)
870 {
871 }
872 DEFINE_CCW_MACHINE_AS_LATEST(9, 1);
873 
874 static void ccw_machine_9_0_instance_options(MachineState *machine)
875 {
876     ccw_machine_9_1_instance_options(machine);
877 }
878 
879 static void ccw_machine_9_0_class_options(MachineClass *mc)
880 {
881     static GlobalProperty compat[] = {
882         { TYPE_QEMU_S390_FLIC, "migrate-all-state", "off", },
883     };
884 
885     ccw_machine_9_1_class_options(mc);
886     compat_props_add(mc->compat_props, hw_compat_9_0, hw_compat_9_0_len);
887     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
888 }
889 DEFINE_CCW_MACHINE(9, 0);
890 
891 static void ccw_machine_8_2_instance_options(MachineState *machine)
892 {
893     ccw_machine_9_0_instance_options(machine);
894 }
895 
896 static void ccw_machine_8_2_class_options(MachineClass *mc)
897 {
898     ccw_machine_9_0_class_options(mc);
899     compat_props_add(mc->compat_props, hw_compat_8_2, hw_compat_8_2_len);
900 }
901 DEFINE_CCW_MACHINE(8, 2);
902 
903 static void ccw_machine_8_1_instance_options(MachineState *machine)
904 {
905     ccw_machine_8_2_instance_options(machine);
906 }
907 
908 static void ccw_machine_8_1_class_options(MachineClass *mc)
909 {
910     ccw_machine_8_2_class_options(mc);
911     compat_props_add(mc->compat_props, hw_compat_8_1, hw_compat_8_1_len);
912     mc->smp_props.drawers_supported = false;
913     mc->smp_props.books_supported = false;
914 }
915 DEFINE_CCW_MACHINE(8, 1);
916 
917 static void ccw_machine_8_0_instance_options(MachineState *machine)
918 {
919     ccw_machine_8_1_instance_options(machine);
920 }
921 
922 static void ccw_machine_8_0_class_options(MachineClass *mc)
923 {
924     ccw_machine_8_1_class_options(mc);
925     compat_props_add(mc->compat_props, hw_compat_8_0, hw_compat_8_0_len);
926 }
927 DEFINE_CCW_MACHINE(8, 0);
928 
929 static void ccw_machine_7_2_instance_options(MachineState *machine)
930 {
931     ccw_machine_8_0_instance_options(machine);
932 }
933 
934 static void ccw_machine_7_2_class_options(MachineClass *mc)
935 {
936     ccw_machine_8_0_class_options(mc);
937     compat_props_add(mc->compat_props, hw_compat_7_2, hw_compat_7_2_len);
938 }
939 DEFINE_CCW_MACHINE(7, 2);
940 
941 static void ccw_machine_7_1_instance_options(MachineState *machine)
942 {
943     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V7_1 };
944 
945     ccw_machine_7_2_instance_options(machine);
946     s390_cpudef_featoff_greater(16, 1, S390_FEAT_PAIE);
947     s390_set_qemu_cpu_model(0x8561, 15, 1, qemu_cpu_feat);
948 }
949 
950 static void ccw_machine_7_1_class_options(MachineClass *mc)
951 {
952     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
953     static GlobalProperty compat[] = {
954         { TYPE_S390_PCI_DEVICE, "interpret", "off", },
955         { TYPE_S390_PCI_DEVICE, "forwarding-assist", "off", },
956     };
957 
958     ccw_machine_7_2_class_options(mc);
959     compat_props_add(mc->compat_props, hw_compat_7_1, hw_compat_7_1_len);
960     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
961     s390mc->max_threads = S390_MAX_CPUS;
962 }
963 DEFINE_CCW_MACHINE(7, 1);
964 
965 static void ccw_machine_7_0_instance_options(MachineState *machine)
966 {
967     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V7_0 };
968 
969     ccw_machine_7_1_instance_options(machine);
970     s390_set_qemu_cpu_model(0x8561, 15, 1, qemu_cpu_feat);
971 }
972 
973 static void ccw_machine_7_0_class_options(MachineClass *mc)
974 {
975     ccw_machine_7_1_class_options(mc);
976     compat_props_add(mc->compat_props, hw_compat_7_0, hw_compat_7_0_len);
977 }
978 DEFINE_CCW_MACHINE(7, 0);
979 
980 static void ccw_machine_6_2_instance_options(MachineState *machine)
981 {
982     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_2 };
983 
984     ccw_machine_7_0_instance_options(machine);
985     s390_set_qemu_cpu_model(0x3906, 14, 2, qemu_cpu_feat);
986 }
987 
988 static void ccw_machine_6_2_class_options(MachineClass *mc)
989 {
990     ccw_machine_7_0_class_options(mc);
991     compat_props_add(mc->compat_props, hw_compat_6_2, hw_compat_6_2_len);
992 }
993 DEFINE_CCW_MACHINE(6, 2);
994 
995 static void ccw_machine_6_1_instance_options(MachineState *machine)
996 {
997     ccw_machine_6_2_instance_options(machine);
998     s390_cpudef_featoff_greater(16, 1, S390_FEAT_NNPA);
999     s390_cpudef_featoff_greater(16, 1, S390_FEAT_VECTOR_PACKED_DECIMAL_ENH2);
1000     s390_cpudef_featoff_greater(16, 1, S390_FEAT_BEAR_ENH);
1001     s390_cpudef_featoff_greater(16, 1, S390_FEAT_RDP);
1002     s390_cpudef_featoff_greater(16, 1, S390_FEAT_PAI);
1003 }
1004 
1005 static void ccw_machine_6_1_class_options(MachineClass *mc)
1006 {
1007     ccw_machine_6_2_class_options(mc);
1008     compat_props_add(mc->compat_props, hw_compat_6_1, hw_compat_6_1_len);
1009     mc->smp_props.prefer_sockets = true;
1010 }
1011 DEFINE_CCW_MACHINE(6, 1);
1012 
1013 static void ccw_machine_6_0_instance_options(MachineState *machine)
1014 {
1015     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_0 };
1016 
1017     ccw_machine_6_1_instance_options(machine);
1018     s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat);
1019 }
1020 
1021 static void ccw_machine_6_0_class_options(MachineClass *mc)
1022 {
1023     ccw_machine_6_1_class_options(mc);
1024     compat_props_add(mc->compat_props, hw_compat_6_0, hw_compat_6_0_len);
1025 }
1026 DEFINE_CCW_MACHINE(6, 0);
1027 
1028 static void ccw_machine_5_2_instance_options(MachineState *machine)
1029 {
1030     ccw_machine_6_0_instance_options(machine);
1031 }
1032 
1033 static void ccw_machine_5_2_class_options(MachineClass *mc)
1034 {
1035     ccw_machine_6_0_class_options(mc);
1036     compat_props_add(mc->compat_props, hw_compat_5_2, hw_compat_5_2_len);
1037 }
1038 DEFINE_CCW_MACHINE(5, 2);
1039 
1040 static void ccw_machine_5_1_instance_options(MachineState *machine)
1041 {
1042     ccw_machine_5_2_instance_options(machine);
1043 }
1044 
1045 static void ccw_machine_5_1_class_options(MachineClass *mc)
1046 {
1047     ccw_machine_5_2_class_options(mc);
1048     compat_props_add(mc->compat_props, hw_compat_5_1, hw_compat_5_1_len);
1049 }
1050 DEFINE_CCW_MACHINE(5, 1);
1051 
1052 static void ccw_machine_5_0_instance_options(MachineState *machine)
1053 {
1054     ccw_machine_5_1_instance_options(machine);
1055 }
1056 
1057 static void ccw_machine_5_0_class_options(MachineClass *mc)
1058 {
1059     ccw_machine_5_1_class_options(mc);
1060     compat_props_add(mc->compat_props, hw_compat_5_0, hw_compat_5_0_len);
1061 }
1062 DEFINE_CCW_MACHINE(5, 0);
1063 
1064 static void ccw_machine_4_2_instance_options(MachineState *machine)
1065 {
1066     ccw_machine_5_0_instance_options(machine);
1067 }
1068 
1069 static void ccw_machine_4_2_class_options(MachineClass *mc)
1070 {
1071     ccw_machine_5_0_class_options(mc);
1072     mc->fixup_ram_size = s390_fixup_ram_size;
1073     compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len);
1074 }
1075 DEFINE_CCW_MACHINE(4, 2);
1076 
1077 static void ccw_machine_4_1_instance_options(MachineState *machine)
1078 {
1079     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_1 };
1080     ccw_machine_4_2_instance_options(machine);
1081     s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat);
1082 }
1083 
1084 static void ccw_machine_4_1_class_options(MachineClass *mc)
1085 {
1086     ccw_machine_4_2_class_options(mc);
1087     compat_props_add(mc->compat_props, hw_compat_4_1, hw_compat_4_1_len);
1088 }
1089 DEFINE_CCW_MACHINE(4, 1);
1090 
1091 static void ccw_machine_4_0_instance_options(MachineState *machine)
1092 {
1093     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_0 };
1094     ccw_machine_4_1_instance_options(machine);
1095     s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat);
1096 }
1097 
1098 static void ccw_machine_4_0_class_options(MachineClass *mc)
1099 {
1100     ccw_machine_4_1_class_options(mc);
1101     compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len);
1102 }
1103 DEFINE_CCW_MACHINE(4, 0);
1104 
1105 static void ccw_machine_3_1_instance_options(MachineState *machine)
1106 {
1107     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V3_1 };
1108     ccw_machine_4_0_instance_options(machine);
1109     s390_cpudef_featoff_greater(14, 1, S390_FEAT_MULTIPLE_EPOCH);
1110     s390_cpudef_group_featoff_greater(14, 1, S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF);
1111     s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat);
1112 }
1113 
1114 static void ccw_machine_3_1_class_options(MachineClass *mc)
1115 {
1116     ccw_machine_4_0_class_options(mc);
1117     compat_props_add(mc->compat_props, hw_compat_3_1, hw_compat_3_1_len);
1118 }
1119 DEFINE_CCW_MACHINE(3, 1);
1120 
1121 static void ccw_machine_3_0_instance_options(MachineState *machine)
1122 {
1123     ccw_machine_3_1_instance_options(machine);
1124 }
1125 
1126 static void ccw_machine_3_0_class_options(MachineClass *mc)
1127 {
1128     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
1129 
1130     s390mc->hpage_1m_allowed = false;
1131     ccw_machine_3_1_class_options(mc);
1132     compat_props_add(mc->compat_props, hw_compat_3_0, hw_compat_3_0_len);
1133 }
1134 DEFINE_CCW_MACHINE(3, 0);
1135 
1136 static void ccw_machine_2_12_instance_options(MachineState *machine)
1137 {
1138     ccw_machine_3_0_instance_options(machine);
1139     s390_cpudef_featoff_greater(11, 1, S390_FEAT_PPA15);
1140     s390_cpudef_featoff_greater(11, 1, S390_FEAT_BPB);
1141 }
1142 
1143 static void ccw_machine_2_12_class_options(MachineClass *mc)
1144 {
1145     ccw_machine_3_0_class_options(mc);
1146     compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len);
1147 }
1148 DEFINE_CCW_MACHINE(2, 12);
1149 
1150 #ifdef CONFIG_S390X_LEGACY_CPUS
1151 
1152 static void ccw_machine_2_11_instance_options(MachineState *machine)
1153 {
1154     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 };
1155     ccw_machine_2_12_instance_options(machine);
1156 
1157     /* before 2.12 we emulated the very first z900 */
1158     s390_set_qemu_cpu_model(0x2064, 7, 1, qemu_cpu_feat);
1159 }
1160 
1161 static void ccw_machine_2_11_class_options(MachineClass *mc)
1162 {
1163     static GlobalProperty compat[] = {
1164         { TYPE_SCLP_EVENT_FACILITY, "allow_all_mask_sizes", "off", },
1165     };
1166 
1167     ccw_machine_2_12_class_options(mc);
1168     compat_props_add(mc->compat_props, hw_compat_2_11, hw_compat_2_11_len);
1169     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
1170 }
1171 DEFINE_CCW_MACHINE(2, 11);
1172 
1173 static void ccw_machine_2_10_instance_options(MachineState *machine)
1174 {
1175     ccw_machine_2_11_instance_options(machine);
1176 }
1177 
1178 static void ccw_machine_2_10_class_options(MachineClass *mc)
1179 {
1180     ccw_machine_2_11_class_options(mc);
1181     compat_props_add(mc->compat_props, hw_compat_2_10, hw_compat_2_10_len);
1182 }
1183 DEFINE_CCW_MACHINE(2, 10);
1184 
1185 static void ccw_machine_2_9_instance_options(MachineState *machine)
1186 {
1187     ccw_machine_2_10_instance_options(machine);
1188     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ESOP);
1189     s390_cpudef_featoff_greater(12, 1, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2);
1190     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ZPCI);
1191     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_INT_SUPPRESSION);
1192     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_EVENT_NOTIFICATION);
1193 }
1194 
1195 static void ccw_machine_2_9_class_options(MachineClass *mc)
1196 {
1197     static GlobalProperty compat[] = {
1198         { TYPE_S390_STATTRIB, "migration-enabled", "off", },
1199         { TYPE_S390_FLIC_COMMON, "migration-enabled", "off", },
1200     };
1201 
1202     ccw_machine_2_10_class_options(mc);
1203     compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len);
1204     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
1205     css_migration_enabled = false;
1206 }
1207 DEFINE_CCW_MACHINE(2, 9);
1208 
1209 static void ccw_machine_2_8_instance_options(MachineState *machine)
1210 {
1211     ccw_machine_2_9_instance_options(machine);
1212 }
1213 
1214 static void ccw_machine_2_8_class_options(MachineClass *mc)
1215 {
1216     static GlobalProperty compat[] = {
1217         { TYPE_S390_FLIC_COMMON, "adapter_routes_max_batch", "64", },
1218     };
1219 
1220     ccw_machine_2_9_class_options(mc);
1221     compat_props_add(mc->compat_props, hw_compat_2_8, hw_compat_2_8_len);
1222     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
1223 }
1224 DEFINE_CCW_MACHINE(2, 8);
1225 
1226 static void ccw_machine_2_7_instance_options(MachineState *machine)
1227 {
1228     ccw_machine_2_8_instance_options(machine);
1229 }
1230 
1231 static void ccw_machine_2_7_class_options(MachineClass *mc)
1232 {
1233     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
1234 
1235     s390mc->cpu_model_allowed = false;
1236     ccw_machine_2_8_class_options(mc);
1237     compat_props_add(mc->compat_props, hw_compat_2_7, hw_compat_2_7_len);
1238 }
1239 DEFINE_CCW_MACHINE(2, 7);
1240 
1241 static void ccw_machine_2_6_instance_options(MachineState *machine)
1242 {
1243     ccw_machine_2_7_instance_options(machine);
1244 }
1245 
1246 static void ccw_machine_2_6_class_options(MachineClass *mc)
1247 {
1248     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
1249     static GlobalProperty compat[] = {
1250         { TYPE_S390_IPL, "iplbext_migration", "off", },
1251          { TYPE_VIRTUAL_CSS_BRIDGE, "css_dev_path", "off", },
1252     };
1253 
1254     s390mc->ri_allowed = false;
1255     ccw_machine_2_7_class_options(mc);
1256     compat_props_add(mc->compat_props, hw_compat_2_6, hw_compat_2_6_len);
1257     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
1258 }
1259 DEFINE_CCW_MACHINE(2, 6);
1260 
1261 static void ccw_machine_2_5_instance_options(MachineState *machine)
1262 {
1263     ccw_machine_2_6_instance_options(machine);
1264 }
1265 
1266 static void ccw_machine_2_5_class_options(MachineClass *mc)
1267 {
1268     ccw_machine_2_6_class_options(mc);
1269     compat_props_add(mc->compat_props, hw_compat_2_5, hw_compat_2_5_len);
1270 }
1271 DEFINE_CCW_MACHINE(2, 5);
1272 
1273 static void ccw_machine_2_4_instance_options(MachineState *machine)
1274 {
1275     ccw_machine_2_5_instance_options(machine);
1276 }
1277 
1278 static void ccw_machine_2_4_class_options(MachineClass *mc)
1279 {
1280     static GlobalProperty compat[] = {
1281         { TYPE_S390_SKEYS, "migration-enabled", "off", },
1282         { "virtio-blk-ccw", "max_revision", "0", },
1283         { "virtio-balloon-ccw", "max_revision", "0", },
1284         { "virtio-serial-ccw", "max_revision", "0", },
1285         { "virtio-9p-ccw", "max_revision", "0", },
1286         { "virtio-rng-ccw", "max_revision", "0", },
1287         { "virtio-net-ccw", "max_revision", "0", },
1288         { "virtio-scsi-ccw", "max_revision", "0", },
1289         { "vhost-scsi-ccw", "max_revision", "0", },
1290     };
1291 
1292     ccw_machine_2_5_class_options(mc);
1293     compat_props_add(mc->compat_props, hw_compat_2_4, hw_compat_2_4_len);
1294     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
1295 }
1296 DEFINE_CCW_MACHINE(2, 4);
1297 
1298 #endif
1299 
1300 static void ccw_machine_register_types(void)
1301 {
1302     type_register_static(&ccw_machine_info);
1303 }
1304 
1305 type_init(ccw_machine_register_types)
1306