xref: /openbmc/qemu/hw/s390x/s390-virtio-ccw.c (revision 4921d0a7)
1 /*
2  * virtio ccw machine
3  *
4  * Copyright 2012, 2020 IBM Corp.
5  * Copyright (c) 2009 Alexander Graf <agraf@suse.de>
6  * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
7  *            Janosch Frank <frankja@linux.ibm.com>
8  *
9  * This work is licensed under the terms of the GNU GPL, version 2 or (at
10  * your option) any later version. See the COPYING file in the top-level
11  * directory.
12  */
13 
14 #include "qemu/osdep.h"
15 #include "qapi/error.h"
16 #include "exec/ram_addr.h"
17 #include "exec/confidential-guest-support.h"
18 #include "hw/s390x/s390-virtio-hcall.h"
19 #include "hw/s390x/sclp.h"
20 #include "hw/s390x/s390_flic.h"
21 #include "hw/s390x/ioinst.h"
22 #include "hw/s390x/css.h"
23 #include "virtio-ccw.h"
24 #include "qemu/config-file.h"
25 #include "qemu/ctype.h"
26 #include "qemu/error-report.h"
27 #include "qemu/option.h"
28 #include "qemu/qemu-print.h"
29 #include "qemu/units.h"
30 #include "hw/s390x/s390-pci-bus.h"
31 #include "sysemu/reset.h"
32 #include "hw/s390x/storage-keys.h"
33 #include "hw/s390x/storage-attributes.h"
34 #include "hw/s390x/event-facility.h"
35 #include "ipl.h"
36 #include "hw/s390x/s390-virtio-ccw.h"
37 #include "hw/s390x/css-bridge.h"
38 #include "hw/s390x/ap-bridge.h"
39 #include "migration/register.h"
40 #include "cpu_models.h"
41 #include "hw/nmi.h"
42 #include "hw/qdev-properties.h"
43 #include "hw/s390x/tod.h"
44 #include "sysemu/sysemu.h"
45 #include "sysemu/cpus.h"
46 #include "target/s390x/kvm/pv.h"
47 #include "migration/blocker.h"
48 #include "qapi/visitor.h"
49 #include "hw/s390x/cpu-topology.h"
50 
51 static Error *pv_mig_blocker;
52 
53 S390CPU *s390_cpu_addr2state(uint16_t cpu_addr)
54 {
55     static MachineState *ms;
56 
57     if (!ms) {
58         ms = MACHINE(qdev_get_machine());
59         g_assert(ms->possible_cpus);
60     }
61 
62     /* CPU address corresponds to the core_id and the index */
63     if (cpu_addr >= ms->possible_cpus->len) {
64         return NULL;
65     }
66     return S390_CPU(ms->possible_cpus->cpus[cpu_addr].cpu);
67 }
68 
69 static S390CPU *s390x_new_cpu(const char *typename, uint32_t core_id,
70                               Error **errp)
71 {
72     S390CPU *cpu = S390_CPU(object_new(typename));
73     S390CPU *ret = NULL;
74 
75     if (!object_property_set_int(OBJECT(cpu), "core-id", core_id, errp)) {
76         goto out;
77     }
78     if (!qdev_realize(DEVICE(cpu), NULL, errp)) {
79         goto out;
80     }
81     ret = cpu;
82 
83 out:
84     object_unref(OBJECT(cpu));
85     return ret;
86 }
87 
88 static void s390_init_cpus(MachineState *machine)
89 {
90     MachineClass *mc = MACHINE_GET_CLASS(machine);
91     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
92     int i;
93 
94     if (machine->smp.threads > s390mc->max_threads) {
95         error_report("S390 does not support more than %d threads.",
96                      s390mc->max_threads);
97         exit(1);
98     }
99 
100     /* initialize possible_cpus */
101     mc->possible_cpu_arch_ids(machine);
102 
103     for (i = 0; i < machine->smp.cpus; i++) {
104         s390x_new_cpu(machine->cpu_type, i, &error_fatal);
105     }
106 }
107 
108 static const char *const reset_dev_types[] = {
109     TYPE_VIRTUAL_CSS_BRIDGE,
110     "s390-sclp-event-facility",
111     "s390-flic",
112     "diag288",
113     TYPE_S390_PCI_HOST_BRIDGE,
114     TYPE_AP_BRIDGE,
115 };
116 
117 static void subsystem_reset(void)
118 {
119     DeviceState *dev;
120     int i;
121 
122     /*
123      * ISM firmware is sensitive to unexpected changes to the IOMMU, which can
124      * occur during reset of the vfio-pci device (unmap of entire aperture).
125      * Ensure any passthrough ISM devices are reset now, while CPUs are paused
126      * but before vfio-pci cleanup occurs.
127      */
128     s390_pci_ism_reset();
129 
130     for (i = 0; i < ARRAY_SIZE(reset_dev_types); i++) {
131         dev = DEVICE(object_resolve_path_type("", reset_dev_types[i], NULL));
132         if (dev) {
133             device_cold_reset(dev);
134         }
135     }
136     if (s390_has_topology()) {
137         s390_topology_reset();
138     }
139 }
140 
141 static int virtio_ccw_hcall_notify(const uint64_t *args)
142 {
143     uint64_t subch_id = args[0];
144     uint64_t queue = args[1];
145     SubchDev *sch;
146     int cssid, ssid, schid, m;
147 
148     if (ioinst_disassemble_sch_ident(subch_id, &m, &cssid, &ssid, &schid)) {
149         return -EINVAL;
150     }
151     sch = css_find_subch(m, cssid, ssid, schid);
152     if (!sch || !css_subch_visible(sch)) {
153         return -EINVAL;
154     }
155     if (queue >= VIRTIO_QUEUE_MAX) {
156         return -EINVAL;
157     }
158     virtio_queue_notify(virtio_ccw_get_vdev(sch), queue);
159     return 0;
160 
161 }
162 
163 static int virtio_ccw_hcall_early_printk(const uint64_t *args)
164 {
165     uint64_t mem = args[0];
166     MachineState *ms = MACHINE(qdev_get_machine());
167 
168     if (mem < ms->ram_size) {
169         /* Early printk */
170         return 0;
171     }
172     return -EINVAL;
173 }
174 
175 static void virtio_ccw_register_hcalls(void)
176 {
177     s390_register_virtio_hypercall(KVM_S390_VIRTIO_CCW_NOTIFY,
178                                    virtio_ccw_hcall_notify);
179     /* Tolerate early printk. */
180     s390_register_virtio_hypercall(KVM_S390_VIRTIO_NOTIFY,
181                                    virtio_ccw_hcall_early_printk);
182 }
183 
184 static void s390_memory_init(MemoryRegion *ram)
185 {
186     MemoryRegion *sysmem = get_system_memory();
187 
188     /* allocate RAM for core */
189     memory_region_add_subregion(sysmem, 0, ram);
190 
191     /*
192      * Configure the maximum page size. As no memory devices were created
193      * yet, this is the page size of initial memory only.
194      */
195     s390_set_max_pagesize(qemu_maxrampagesize(), &error_fatal);
196     /* Initialize storage key device */
197     s390_skeys_init();
198     /* Initialize storage attributes device */
199     s390_stattrib_init();
200 }
201 
202 static void s390_init_ipl_dev(const char *kernel_filename,
203                               const char *kernel_cmdline,
204                               const char *initrd_filename, const char *firmware,
205                               const char *netboot_fw, bool enforce_bios)
206 {
207     Object *new = object_new(TYPE_S390_IPL);
208     DeviceState *dev = DEVICE(new);
209     char *netboot_fw_prop;
210 
211     if (kernel_filename) {
212         qdev_prop_set_string(dev, "kernel", kernel_filename);
213     }
214     if (initrd_filename) {
215         qdev_prop_set_string(dev, "initrd", initrd_filename);
216     }
217     qdev_prop_set_string(dev, "cmdline", kernel_cmdline);
218     qdev_prop_set_string(dev, "firmware", firmware);
219     qdev_prop_set_bit(dev, "enforce_bios", enforce_bios);
220     netboot_fw_prop = object_property_get_str(new, "netboot_fw", &error_abort);
221     if (!strlen(netboot_fw_prop)) {
222         qdev_prop_set_string(dev, "netboot_fw", netboot_fw);
223     }
224     g_free(netboot_fw_prop);
225     object_property_add_child(qdev_get_machine(), TYPE_S390_IPL,
226                               new);
227     object_unref(new);
228     qdev_realize(dev, NULL, &error_fatal);
229 }
230 
231 static void s390_create_virtio_net(BusState *bus, const char *name)
232 {
233     DeviceState *dev;
234 
235     while ((dev = qemu_create_nic_device(name, true, "virtio"))) {
236         qdev_realize_and_unref(dev, bus, &error_fatal);
237     }
238 }
239 
240 static void s390_create_sclpconsole(const char *type, Chardev *chardev)
241 {
242     DeviceState *dev;
243 
244     dev = qdev_new(type);
245     qdev_prop_set_chr(dev, "chardev", chardev);
246     qdev_realize_and_unref(dev, sclp_get_event_facility_bus(), &error_fatal);
247 }
248 
249 static void ccw_init(MachineState *machine)
250 {
251     MachineClass *mc = MACHINE_GET_CLASS(machine);
252     int ret;
253     VirtualCssBus *css_bus;
254     DeviceState *dev;
255 
256     s390_sclp_init();
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                       "s390-netboot.img", 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 
295     assert(ret == 0);
296     if (css_migration_enabled()) {
297         css_register_vmstate();
298     }
299 
300     /* Create VirtIO network adapters */
301     s390_create_virtio_net(BUS(css_bus), mc->default_nic);
302 
303     /* init consoles */
304     if (serial_hd(0)) {
305         s390_create_sclpconsole("sclpconsole", serial_hd(0));
306     }
307     if (serial_hd(1)) {
308         s390_create_sclpconsole("sclplmconsole", serial_hd(1));
309     }
310 
311     /* init the TOD clock */
312     s390_init_tod();
313 }
314 
315 static void s390_cpu_plug(HotplugHandler *hotplug_dev,
316                         DeviceState *dev, Error **errp)
317 {
318     ERRP_GUARD();
319     MachineState *ms = MACHINE(hotplug_dev);
320     S390CPU *cpu = S390_CPU(dev);
321 
322     g_assert(!ms->possible_cpus->cpus[cpu->env.core_id].cpu);
323     ms->possible_cpus->cpus[cpu->env.core_id].cpu = CPU(dev);
324 
325     if (s390_has_topology()) {
326         s390_topology_setup_cpu(ms, cpu, errp);
327         if (*errp) {
328             return;
329         }
330     }
331 
332     if (dev->hotplugged) {
333         raise_irq_cpu_hotplug();
334     }
335 }
336 
337 static inline void s390_do_cpu_ipl(CPUState *cs, run_on_cpu_data arg)
338 {
339     S390CPU *cpu = S390_CPU(cs);
340 
341     s390_ipl_prepare_cpu(cpu);
342     s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu);
343 }
344 
345 static void s390_machine_unprotect(S390CcwMachineState *ms)
346 {
347     if (!s390_pv_vm_try_disable_async(ms)) {
348         s390_pv_vm_disable();
349     }
350     ms->pv = false;
351     migrate_del_blocker(&pv_mig_blocker);
352     ram_block_discard_disable(false);
353 }
354 
355 static int s390_machine_protect(S390CcwMachineState *ms)
356 {
357     Error *local_err = NULL;
358     int rc;
359 
360    /*
361     * Discarding of memory in RAM blocks does not work as expected with
362     * protected VMs. Sharing and unsharing pages would be required. Disable
363     * it for now, until until we have a solution to make at least Linux
364     * guests either support it (e.g., virtio-balloon) or fail gracefully.
365     */
366     rc = ram_block_discard_disable(true);
367     if (rc) {
368         error_report("protected VMs: cannot disable RAM discard");
369         return rc;
370     }
371 
372     error_setg(&pv_mig_blocker,
373                "protected VMs are currently not migratable.");
374     rc = migrate_add_blocker(&pv_mig_blocker, &local_err);
375     if (rc) {
376         ram_block_discard_disable(false);
377         error_report_err(local_err);
378         return rc;
379     }
380 
381     /* Create SE VM */
382     rc = s390_pv_vm_enable();
383     if (rc) {
384         ram_block_discard_disable(false);
385         migrate_del_blocker(&pv_mig_blocker);
386         return rc;
387     }
388 
389     ms->pv = true;
390 
391     /* Will return 0 if API is not available since it's not vital */
392     rc = s390_pv_query_info();
393     if (rc) {
394         goto out_err;
395     }
396 
397     /* Set SE header and unpack */
398     rc = s390_ipl_prepare_pv_header(&local_err);
399     if (rc) {
400         goto out_err;
401     }
402 
403     /* Decrypt image */
404     rc = s390_ipl_pv_unpack();
405     if (rc) {
406         goto out_err;
407     }
408 
409     /* Verify integrity */
410     rc = s390_pv_verify();
411     if (rc) {
412         goto out_err;
413     }
414     return rc;
415 
416 out_err:
417     if (local_err) {
418         error_report_err(local_err);
419     }
420     s390_machine_unprotect(ms);
421     return rc;
422 }
423 
424 static void s390_pv_prepare_reset(S390CcwMachineState *ms)
425 {
426     CPUState *cs;
427 
428     if (!s390_is_pv()) {
429         return;
430     }
431     /* Unsharing requires all cpus to be stopped */
432     CPU_FOREACH(cs) {
433         s390_cpu_set_state(S390_CPU_STATE_STOPPED, S390_CPU(cs));
434     }
435     s390_pv_unshare();
436     s390_pv_prep_reset();
437 }
438 
439 static void s390_machine_reset(MachineState *machine, ShutdownCause reason)
440 {
441     S390CcwMachineState *ms = S390_CCW_MACHINE(machine);
442     enum s390_reset reset_type;
443     CPUState *cs, *t;
444     S390CPU *cpu;
445 
446     /* get the reset parameters, reset them once done */
447     s390_ipl_get_reset_request(&cs, &reset_type);
448 
449     /* all CPUs are paused and synchronized at this point */
450     s390_cmma_reset();
451 
452     cpu = S390_CPU(cs);
453 
454     switch (reset_type) {
455     case S390_RESET_EXTERNAL:
456     case S390_RESET_REIPL:
457         /*
458          * Reset the subsystem which includes a AP reset. If a PV
459          * guest had APQNs attached the AP reset is a prerequisite to
460          * unprotecting since the UV checks if all APQNs are reset.
461          */
462         subsystem_reset();
463         if (s390_is_pv()) {
464             s390_machine_unprotect(ms);
465         }
466 
467         /*
468          * Device reset includes CPU clear resets so this has to be
469          * done AFTER the unprotect call above.
470          */
471         qemu_devices_reset(reason);
472         s390_crypto_reset();
473 
474         /* configure and start the ipl CPU only */
475         run_on_cpu(cs, s390_do_cpu_ipl, RUN_ON_CPU_NULL);
476         break;
477     case S390_RESET_MODIFIED_CLEAR:
478         /*
479          * Subsystem reset needs to be done before we unshare memory
480          * and lose access to VIRTIO structures in guest memory.
481          */
482         subsystem_reset();
483         s390_crypto_reset();
484         s390_pv_prepare_reset(ms);
485         CPU_FOREACH(t) {
486             run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL);
487         }
488         run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL);
489         break;
490     case S390_RESET_LOAD_NORMAL:
491         /*
492          * Subsystem reset needs to be done before we unshare memory
493          * and lose access to VIRTIO structures in guest memory.
494          */
495         subsystem_reset();
496         s390_pv_prepare_reset(ms);
497         CPU_FOREACH(t) {
498             if (t == cs) {
499                 continue;
500             }
501             run_on_cpu(t, s390_do_cpu_reset, RUN_ON_CPU_NULL);
502         }
503         run_on_cpu(cs, s390_do_cpu_initial_reset, RUN_ON_CPU_NULL);
504         run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL);
505         break;
506     case S390_RESET_PV: /* Subcode 10 */
507         subsystem_reset();
508         s390_crypto_reset();
509 
510         CPU_FOREACH(t) {
511             if (t == cs) {
512                 continue;
513             }
514             run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL);
515         }
516         run_on_cpu(cs, s390_do_cpu_reset, RUN_ON_CPU_NULL);
517 
518         if (s390_machine_protect(ms)) {
519             s390_pv_inject_reset_error(cs);
520             /*
521              * Continue after the diag308 so the guest knows something
522              * went wrong.
523              */
524             s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu);
525             return;
526         }
527 
528         run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL);
529         break;
530     default:
531         g_assert_not_reached();
532     }
533 
534     CPU_FOREACH(t) {
535         run_on_cpu(t, s390_do_cpu_set_diag318, RUN_ON_CPU_HOST_ULONG(0));
536     }
537     s390_ipl_clear_reset_request();
538 }
539 
540 static void s390_machine_device_plug(HotplugHandler *hotplug_dev,
541                                      DeviceState *dev, Error **errp)
542 {
543     if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
544         s390_cpu_plug(hotplug_dev, dev, errp);
545     }
546 }
547 
548 static void s390_machine_device_unplug_request(HotplugHandler *hotplug_dev,
549                                                DeviceState *dev, Error **errp)
550 {
551     if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
552         error_setg(errp, "CPU hot unplug not supported on this machine");
553         return;
554     }
555 }
556 
557 static CpuInstanceProperties s390_cpu_index_to_props(MachineState *ms,
558                                                      unsigned cpu_index)
559 {
560     MachineClass *mc = MACHINE_GET_CLASS(ms);
561     const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms);
562 
563     assert(cpu_index < possible_cpus->len);
564     return possible_cpus->cpus[cpu_index].props;
565 }
566 
567 static const CPUArchIdList *s390_possible_cpu_arch_ids(MachineState *ms)
568 {
569     int i;
570     unsigned int max_cpus = ms->smp.max_cpus;
571 
572     if (ms->possible_cpus) {
573         g_assert(ms->possible_cpus && ms->possible_cpus->len == max_cpus);
574         return ms->possible_cpus;
575     }
576 
577     ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) +
578                                   sizeof(CPUArchId) * max_cpus);
579     ms->possible_cpus->len = max_cpus;
580     for (i = 0; i < ms->possible_cpus->len; i++) {
581         CpuInstanceProperties *props = &ms->possible_cpus->cpus[i].props;
582 
583         ms->possible_cpus->cpus[i].type = ms->cpu_type;
584         ms->possible_cpus->cpus[i].vcpus_count = 1;
585         ms->possible_cpus->cpus[i].arch_id = i;
586 
587         props->has_core_id = true;
588         props->core_id = i;
589         props->has_socket_id = true;
590         props->socket_id = s390_std_socket(i, &ms->smp);
591         props->has_book_id = true;
592         props->book_id = s390_std_book(i, &ms->smp);
593         props->has_drawer_id = true;
594         props->drawer_id = s390_std_drawer(i, &ms->smp);
595     }
596 
597     return ms->possible_cpus;
598 }
599 
600 static HotplugHandler *s390_get_hotplug_handler(MachineState *machine,
601                                                 DeviceState *dev)
602 {
603     if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
604         return HOTPLUG_HANDLER(machine);
605     }
606     return NULL;
607 }
608 
609 static void s390_nmi(NMIState *n, int cpu_index, Error **errp)
610 {
611     CPUState *cs = qemu_get_cpu(cpu_index);
612 
613     s390_cpu_restart(S390_CPU(cs));
614 }
615 
616 static ram_addr_t s390_fixup_ram_size(ram_addr_t sz)
617 {
618     /* same logic as in sclp.c */
619     int increment_size = 20;
620     ram_addr_t newsz;
621 
622     while ((sz >> increment_size) > MAX_STORAGE_INCREMENTS) {
623         increment_size++;
624     }
625     newsz = sz >> increment_size << increment_size;
626 
627     if (sz != newsz) {
628         qemu_printf("Ram size %" PRIu64 "MB was fixed up to %" PRIu64
629                     "MB to match machine restrictions. Consider updating "
630                     "the guest definition.\n", (uint64_t) (sz / MiB),
631                     (uint64_t) (newsz / MiB));
632     }
633     return newsz;
634 }
635 
636 static inline bool machine_get_aes_key_wrap(Object *obj, Error **errp)
637 {
638     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
639 
640     return ms->aes_key_wrap;
641 }
642 
643 static inline void machine_set_aes_key_wrap(Object *obj, bool value,
644                                             Error **errp)
645 {
646     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
647 
648     ms->aes_key_wrap = value;
649 }
650 
651 static inline bool machine_get_dea_key_wrap(Object *obj, Error **errp)
652 {
653     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
654 
655     return ms->dea_key_wrap;
656 }
657 
658 static inline void machine_set_dea_key_wrap(Object *obj, bool value,
659                                             Error **errp)
660 {
661     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
662 
663     ms->dea_key_wrap = value;
664 }
665 
666 static S390CcwMachineClass *current_mc;
667 
668 /*
669  * Get the class of the s390-ccw-virtio machine that is currently in use.
670  * Note: libvirt is using the "none" machine to probe for the features of the
671  * host CPU, so in case this is called with the "none" machine, the function
672  * returns the TYPE_S390_CCW_MACHINE base class. In this base class, all the
673  * various "*_allowed" variables are enabled, so that the *_allowed() wrappers
674  * below return the correct default value for the "none" machine.
675  *
676  * Attention! Do *not* add additional new wrappers for CPU features (e.g. like
677  * the ri_allowed() wrapper) via this mechanism anymore. CPU features should
678  * be handled via the CPU models, i.e. checking with cpu_model_allowed() during
679  * CPU initialization and s390_has_feat() later should be sufficient.
680  */
681 static S390CcwMachineClass *get_machine_class(void)
682 {
683     if (unlikely(!current_mc)) {
684         /*
685         * No s390 ccw machine was instantiated, we are likely to
686         * be called for the 'none' machine. The properties will
687         * have their after-initialization values.
688         */
689         current_mc = S390_CCW_MACHINE_CLASS(
690                      object_class_by_name(TYPE_S390_CCW_MACHINE));
691     }
692     return current_mc;
693 }
694 
695 bool ri_allowed(void)
696 {
697     return get_machine_class()->ri_allowed;
698 }
699 
700 bool cpu_model_allowed(void)
701 {
702     return get_machine_class()->cpu_model_allowed;
703 }
704 
705 bool hpage_1m_allowed(void)
706 {
707     return get_machine_class()->hpage_1m_allowed;
708 }
709 
710 static void machine_get_loadparm(Object *obj, Visitor *v,
711                                  const char *name, void *opaque,
712                                  Error **errp)
713 {
714     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
715     char *str = g_strndup((char *) ms->loadparm, sizeof(ms->loadparm));
716 
717     visit_type_str(v, name, &str, errp);
718     g_free(str);
719 }
720 
721 static void machine_set_loadparm(Object *obj, Visitor *v,
722                                  const char *name, void *opaque,
723                                  Error **errp)
724 {
725     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
726     char *val;
727     int i;
728 
729     if (!visit_type_str(v, name, &val, errp)) {
730         return;
731     }
732 
733     for (i = 0; i < sizeof(ms->loadparm) && val[i]; i++) {
734         uint8_t c = qemu_toupper(val[i]); /* mimic HMC */
735 
736         if (('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || (c == '.') ||
737             (c == ' ')) {
738             ms->loadparm[i] = c;
739         } else {
740             error_setg(errp, "LOADPARM: invalid character '%c' (ASCII 0x%02x)",
741                        c, c);
742             return;
743         }
744     }
745 
746     for (; i < sizeof(ms->loadparm); i++) {
747         ms->loadparm[i] = ' '; /* pad right with spaces */
748     }
749 }
750 
751 static void ccw_machine_class_init(ObjectClass *oc, void *data)
752 {
753     MachineClass *mc = MACHINE_CLASS(oc);
754     NMIClass *nc = NMI_CLASS(oc);
755     HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc);
756     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
757 
758     s390mc->ri_allowed = true;
759     s390mc->cpu_model_allowed = true;
760     s390mc->css_migration_enabled = true;
761     s390mc->hpage_1m_allowed = true;
762     s390mc->max_threads = 1;
763     mc->init = ccw_init;
764     mc->reset = s390_machine_reset;
765     mc->block_default_type = IF_VIRTIO;
766     mc->no_cdrom = 1;
767     mc->no_floppy = 1;
768     mc->no_parallel = 1;
769     mc->no_sdcard = 1;
770     mc->max_cpus = S390_MAX_CPUS;
771     mc->has_hotpluggable_cpus = true;
772     mc->smp_props.books_supported = true;
773     mc->smp_props.drawers_supported = true;
774     assert(!mc->get_hotplug_handler);
775     mc->get_hotplug_handler = s390_get_hotplug_handler;
776     mc->cpu_index_to_instance_props = s390_cpu_index_to_props;
777     mc->possible_cpu_arch_ids = s390_possible_cpu_arch_ids;
778     /* it is overridden with 'host' cpu *in kvm_arch_init* */
779     mc->default_cpu_type = S390_CPU_TYPE_NAME("qemu");
780     hc->plug = s390_machine_device_plug;
781     hc->unplug_request = s390_machine_device_unplug_request;
782     nc->nmi_monitor_handler = s390_nmi;
783     mc->default_ram_id = "s390.ram";
784     mc->default_nic = "virtio-net-ccw";
785 
786     object_class_property_add_bool(oc, "aes-key-wrap",
787                                    machine_get_aes_key_wrap,
788                                    machine_set_aes_key_wrap);
789     object_class_property_set_description(oc, "aes-key-wrap",
790             "enable/disable AES key wrapping using the CPACF wrapping key");
791 
792     object_class_property_add_bool(oc, "dea-key-wrap",
793                                    machine_get_dea_key_wrap,
794                                    machine_set_dea_key_wrap);
795     object_class_property_set_description(oc, "dea-key-wrap",
796             "enable/disable DEA key wrapping using the CPACF wrapping key");
797 
798     object_class_property_add(oc, "loadparm", "loadparm",
799                               machine_get_loadparm, machine_set_loadparm,
800                               NULL, NULL);
801     object_class_property_set_description(oc, "loadparm",
802             "Up to 8 chars in set of [A-Za-z0-9. ] (lower case chars converted"
803             " to upper case) to pass to machine loader, boot manager,"
804             " and guest kernel");
805 }
806 
807 static inline void s390_machine_initfn(Object *obj)
808 {
809     S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
810 
811     ms->aes_key_wrap = true;
812     ms->dea_key_wrap = true;
813 }
814 
815 static const TypeInfo ccw_machine_info = {
816     .name          = TYPE_S390_CCW_MACHINE,
817     .parent        = TYPE_MACHINE,
818     .abstract      = true,
819     .instance_size = sizeof(S390CcwMachineState),
820     .instance_init = s390_machine_initfn,
821     .class_size = sizeof(S390CcwMachineClass),
822     .class_init    = ccw_machine_class_init,
823     .interfaces = (InterfaceInfo[]) {
824         { TYPE_NMI },
825         { TYPE_HOTPLUG_HANDLER},
826         { }
827     },
828 };
829 
830 bool css_migration_enabled(void)
831 {
832     return get_machine_class()->css_migration_enabled;
833 }
834 
835 #define DEFINE_CCW_MACHINE(suffix, verstr, latest)                            \
836     static void ccw_machine_##suffix##_class_init(ObjectClass *oc,            \
837                                                   void *data)                 \
838     {                                                                         \
839         MachineClass *mc = MACHINE_CLASS(oc);                                 \
840         ccw_machine_##suffix##_class_options(mc);                             \
841         mc->desc = "Virtual s390x machine (version " verstr ")";              \
842         if (latest) {                                                         \
843             mc->alias = "s390-ccw-virtio";                                    \
844             mc->is_default = true;                                            \
845         }                                                                     \
846     }                                                                         \
847     static void ccw_machine_##suffix##_instance_init(Object *obj)             \
848     {                                                                         \
849         MachineState *machine = MACHINE(obj);                                 \
850         current_mc = S390_CCW_MACHINE_CLASS(MACHINE_GET_CLASS(machine));          \
851         ccw_machine_##suffix##_instance_options(machine);                     \
852     }                                                                         \
853     static const TypeInfo ccw_machine_##suffix##_info = {                     \
854         .name = MACHINE_TYPE_NAME("s390-ccw-virtio-" verstr),                 \
855         .parent = TYPE_S390_CCW_MACHINE,                                      \
856         .class_init = ccw_machine_##suffix##_class_init,                      \
857         .instance_init = ccw_machine_##suffix##_instance_init,                \
858     };                                                                        \
859     static void ccw_machine_register_##suffix(void)                           \
860     {                                                                         \
861         type_register_static(&ccw_machine_##suffix##_info);                   \
862     }                                                                         \
863     type_init(ccw_machine_register_##suffix)
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(9_1, "9.1", true);
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     ccw_machine_9_1_class_options(mc);
882     compat_props_add(mc->compat_props, hw_compat_9_0, hw_compat_9_0_len);
883 }
884 DEFINE_CCW_MACHINE(9_0, "9.0", false);
885 
886 static void ccw_machine_8_2_instance_options(MachineState *machine)
887 {
888     ccw_machine_9_0_instance_options(machine);
889 }
890 
891 static void ccw_machine_8_2_class_options(MachineClass *mc)
892 {
893     ccw_machine_9_0_class_options(mc);
894     compat_props_add(mc->compat_props, hw_compat_8_2, hw_compat_8_2_len);
895 }
896 DEFINE_CCW_MACHINE(8_2, "8.2", false);
897 
898 static void ccw_machine_8_1_instance_options(MachineState *machine)
899 {
900     ccw_machine_8_2_instance_options(machine);
901 }
902 
903 static void ccw_machine_8_1_class_options(MachineClass *mc)
904 {
905     ccw_machine_8_2_class_options(mc);
906     compat_props_add(mc->compat_props, hw_compat_8_1, hw_compat_8_1_len);
907     mc->smp_props.drawers_supported = false;
908     mc->smp_props.books_supported = false;
909 }
910 DEFINE_CCW_MACHINE(8_1, "8.1", false);
911 
912 static void ccw_machine_8_0_instance_options(MachineState *machine)
913 {
914     ccw_machine_8_1_instance_options(machine);
915 }
916 
917 static void ccw_machine_8_0_class_options(MachineClass *mc)
918 {
919     ccw_machine_8_1_class_options(mc);
920     compat_props_add(mc->compat_props, hw_compat_8_0, hw_compat_8_0_len);
921 }
922 DEFINE_CCW_MACHINE(8_0, "8.0", false);
923 
924 static void ccw_machine_7_2_instance_options(MachineState *machine)
925 {
926     ccw_machine_8_0_instance_options(machine);
927 }
928 
929 static void ccw_machine_7_2_class_options(MachineClass *mc)
930 {
931     ccw_machine_8_0_class_options(mc);
932     compat_props_add(mc->compat_props, hw_compat_7_2, hw_compat_7_2_len);
933 }
934 DEFINE_CCW_MACHINE(7_2, "7.2", false);
935 
936 static void ccw_machine_7_1_instance_options(MachineState *machine)
937 {
938     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V7_1 };
939 
940     ccw_machine_7_2_instance_options(machine);
941     s390_cpudef_featoff_greater(16, 1, S390_FEAT_PAIE);
942     s390_set_qemu_cpu_model(0x8561, 15, 1, qemu_cpu_feat);
943 }
944 
945 static void ccw_machine_7_1_class_options(MachineClass *mc)
946 {
947     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
948     static GlobalProperty compat[] = {
949         { TYPE_S390_PCI_DEVICE, "interpret", "off", },
950         { TYPE_S390_PCI_DEVICE, "forwarding-assist", "off", },
951     };
952 
953     ccw_machine_7_2_class_options(mc);
954     compat_props_add(mc->compat_props, hw_compat_7_1, hw_compat_7_1_len);
955     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
956     s390mc->max_threads = S390_MAX_CPUS;
957 }
958 DEFINE_CCW_MACHINE(7_1, "7.1", false);
959 
960 static void ccw_machine_7_0_instance_options(MachineState *machine)
961 {
962     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V7_0 };
963 
964     ccw_machine_7_1_instance_options(machine);
965     s390_set_qemu_cpu_model(0x8561, 15, 1, qemu_cpu_feat);
966 }
967 
968 static void ccw_machine_7_0_class_options(MachineClass *mc)
969 {
970     ccw_machine_7_1_class_options(mc);
971     compat_props_add(mc->compat_props, hw_compat_7_0, hw_compat_7_0_len);
972 }
973 DEFINE_CCW_MACHINE(7_0, "7.0", false);
974 
975 static void ccw_machine_6_2_instance_options(MachineState *machine)
976 {
977     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_2 };
978 
979     ccw_machine_7_0_instance_options(machine);
980     s390_set_qemu_cpu_model(0x3906, 14, 2, qemu_cpu_feat);
981 }
982 
983 static void ccw_machine_6_2_class_options(MachineClass *mc)
984 {
985     ccw_machine_7_0_class_options(mc);
986     compat_props_add(mc->compat_props, hw_compat_6_2, hw_compat_6_2_len);
987 }
988 DEFINE_CCW_MACHINE(6_2, "6.2", false);
989 
990 static void ccw_machine_6_1_instance_options(MachineState *machine)
991 {
992     ccw_machine_6_2_instance_options(machine);
993     s390_cpudef_featoff_greater(16, 1, S390_FEAT_NNPA);
994     s390_cpudef_featoff_greater(16, 1, S390_FEAT_VECTOR_PACKED_DECIMAL_ENH2);
995     s390_cpudef_featoff_greater(16, 1, S390_FEAT_BEAR_ENH);
996     s390_cpudef_featoff_greater(16, 1, S390_FEAT_RDP);
997     s390_cpudef_featoff_greater(16, 1, S390_FEAT_PAI);
998 }
999 
1000 static void ccw_machine_6_1_class_options(MachineClass *mc)
1001 {
1002     ccw_machine_6_2_class_options(mc);
1003     compat_props_add(mc->compat_props, hw_compat_6_1, hw_compat_6_1_len);
1004     mc->smp_props.prefer_sockets = true;
1005 }
1006 DEFINE_CCW_MACHINE(6_1, "6.1", false);
1007 
1008 static void ccw_machine_6_0_instance_options(MachineState *machine)
1009 {
1010     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_0 };
1011 
1012     ccw_machine_6_1_instance_options(machine);
1013     s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat);
1014 }
1015 
1016 static void ccw_machine_6_0_class_options(MachineClass *mc)
1017 {
1018     ccw_machine_6_1_class_options(mc);
1019     compat_props_add(mc->compat_props, hw_compat_6_0, hw_compat_6_0_len);
1020 }
1021 DEFINE_CCW_MACHINE(6_0, "6.0", false);
1022 
1023 static void ccw_machine_5_2_instance_options(MachineState *machine)
1024 {
1025     ccw_machine_6_0_instance_options(machine);
1026 }
1027 
1028 static void ccw_machine_5_2_class_options(MachineClass *mc)
1029 {
1030     ccw_machine_6_0_class_options(mc);
1031     compat_props_add(mc->compat_props, hw_compat_5_2, hw_compat_5_2_len);
1032 }
1033 DEFINE_CCW_MACHINE(5_2, "5.2", false);
1034 
1035 static void ccw_machine_5_1_instance_options(MachineState *machine)
1036 {
1037     ccw_machine_5_2_instance_options(machine);
1038 }
1039 
1040 static void ccw_machine_5_1_class_options(MachineClass *mc)
1041 {
1042     ccw_machine_5_2_class_options(mc);
1043     compat_props_add(mc->compat_props, hw_compat_5_1, hw_compat_5_1_len);
1044 }
1045 DEFINE_CCW_MACHINE(5_1, "5.1", false);
1046 
1047 static void ccw_machine_5_0_instance_options(MachineState *machine)
1048 {
1049     ccw_machine_5_1_instance_options(machine);
1050 }
1051 
1052 static void ccw_machine_5_0_class_options(MachineClass *mc)
1053 {
1054     ccw_machine_5_1_class_options(mc);
1055     compat_props_add(mc->compat_props, hw_compat_5_0, hw_compat_5_0_len);
1056 }
1057 DEFINE_CCW_MACHINE(5_0, "5.0", false);
1058 
1059 static void ccw_machine_4_2_instance_options(MachineState *machine)
1060 {
1061     ccw_machine_5_0_instance_options(machine);
1062 }
1063 
1064 static void ccw_machine_4_2_class_options(MachineClass *mc)
1065 {
1066     ccw_machine_5_0_class_options(mc);
1067     mc->fixup_ram_size = s390_fixup_ram_size;
1068     compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len);
1069 }
1070 DEFINE_CCW_MACHINE(4_2, "4.2", false);
1071 
1072 static void ccw_machine_4_1_instance_options(MachineState *machine)
1073 {
1074     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_1 };
1075     ccw_machine_4_2_instance_options(machine);
1076     s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat);
1077 }
1078 
1079 static void ccw_machine_4_1_class_options(MachineClass *mc)
1080 {
1081     ccw_machine_4_2_class_options(mc);
1082     compat_props_add(mc->compat_props, hw_compat_4_1, hw_compat_4_1_len);
1083 }
1084 DEFINE_CCW_MACHINE(4_1, "4.1", false);
1085 
1086 static void ccw_machine_4_0_instance_options(MachineState *machine)
1087 {
1088     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_0 };
1089     ccw_machine_4_1_instance_options(machine);
1090     s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat);
1091 }
1092 
1093 static void ccw_machine_4_0_class_options(MachineClass *mc)
1094 {
1095     ccw_machine_4_1_class_options(mc);
1096     compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len);
1097 }
1098 DEFINE_CCW_MACHINE(4_0, "4.0", false);
1099 
1100 static void ccw_machine_3_1_instance_options(MachineState *machine)
1101 {
1102     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V3_1 };
1103     ccw_machine_4_0_instance_options(machine);
1104     s390_cpudef_featoff_greater(14, 1, S390_FEAT_MULTIPLE_EPOCH);
1105     s390_cpudef_group_featoff_greater(14, 1, S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF);
1106     s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat);
1107 }
1108 
1109 static void ccw_machine_3_1_class_options(MachineClass *mc)
1110 {
1111     ccw_machine_4_0_class_options(mc);
1112     compat_props_add(mc->compat_props, hw_compat_3_1, hw_compat_3_1_len);
1113 }
1114 DEFINE_CCW_MACHINE(3_1, "3.1", false);
1115 
1116 static void ccw_machine_3_0_instance_options(MachineState *machine)
1117 {
1118     ccw_machine_3_1_instance_options(machine);
1119 }
1120 
1121 static void ccw_machine_3_0_class_options(MachineClass *mc)
1122 {
1123     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
1124 
1125     s390mc->hpage_1m_allowed = false;
1126     ccw_machine_3_1_class_options(mc);
1127     compat_props_add(mc->compat_props, hw_compat_3_0, hw_compat_3_0_len);
1128 }
1129 DEFINE_CCW_MACHINE(3_0, "3.0", false);
1130 
1131 static void ccw_machine_2_12_instance_options(MachineState *machine)
1132 {
1133     ccw_machine_3_0_instance_options(machine);
1134     s390_cpudef_featoff_greater(11, 1, S390_FEAT_PPA15);
1135     s390_cpudef_featoff_greater(11, 1, S390_FEAT_BPB);
1136 }
1137 
1138 static void ccw_machine_2_12_class_options(MachineClass *mc)
1139 {
1140     ccw_machine_3_0_class_options(mc);
1141     compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len);
1142 }
1143 DEFINE_CCW_MACHINE(2_12, "2.12", false);
1144 
1145 static void ccw_machine_2_11_instance_options(MachineState *machine)
1146 {
1147     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 };
1148     ccw_machine_2_12_instance_options(machine);
1149 
1150     /* before 2.12 we emulated the very first z900 */
1151     s390_set_qemu_cpu_model(0x2064, 7, 1, qemu_cpu_feat);
1152 }
1153 
1154 static void ccw_machine_2_11_class_options(MachineClass *mc)
1155 {
1156     static GlobalProperty compat[] = {
1157         { TYPE_SCLP_EVENT_FACILITY, "allow_all_mask_sizes", "off", },
1158     };
1159 
1160     ccw_machine_2_12_class_options(mc);
1161     compat_props_add(mc->compat_props, hw_compat_2_11, hw_compat_2_11_len);
1162     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
1163 }
1164 DEFINE_CCW_MACHINE(2_11, "2.11", false);
1165 
1166 static void ccw_machine_2_10_instance_options(MachineState *machine)
1167 {
1168     ccw_machine_2_11_instance_options(machine);
1169 }
1170 
1171 static void ccw_machine_2_10_class_options(MachineClass *mc)
1172 {
1173     ccw_machine_2_11_class_options(mc);
1174     compat_props_add(mc->compat_props, hw_compat_2_10, hw_compat_2_10_len);
1175 }
1176 DEFINE_CCW_MACHINE(2_10, "2.10", false);
1177 
1178 static void ccw_machine_2_9_instance_options(MachineState *machine)
1179 {
1180     ccw_machine_2_10_instance_options(machine);
1181     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ESOP);
1182     s390_cpudef_featoff_greater(12, 1, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2);
1183     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ZPCI);
1184     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_INT_SUPPRESSION);
1185     s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_EVENT_NOTIFICATION);
1186 }
1187 
1188 static void ccw_machine_2_9_class_options(MachineClass *mc)
1189 {
1190     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
1191     static GlobalProperty compat[] = {
1192         { TYPE_S390_STATTRIB, "migration-enabled", "off", },
1193     };
1194 
1195     ccw_machine_2_10_class_options(mc);
1196     compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len);
1197     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
1198     s390mc->css_migration_enabled = false;
1199 }
1200 DEFINE_CCW_MACHINE(2_9, "2.9", false);
1201 
1202 static void ccw_machine_2_8_instance_options(MachineState *machine)
1203 {
1204     ccw_machine_2_9_instance_options(machine);
1205 }
1206 
1207 static void ccw_machine_2_8_class_options(MachineClass *mc)
1208 {
1209     static GlobalProperty compat[] = {
1210         { TYPE_S390_FLIC_COMMON, "adapter_routes_max_batch", "64", },
1211     };
1212 
1213     ccw_machine_2_9_class_options(mc);
1214     compat_props_add(mc->compat_props, hw_compat_2_8, hw_compat_2_8_len);
1215     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
1216 }
1217 DEFINE_CCW_MACHINE(2_8, "2.8", false);
1218 
1219 static void ccw_machine_2_7_instance_options(MachineState *machine)
1220 {
1221     ccw_machine_2_8_instance_options(machine);
1222 }
1223 
1224 static void ccw_machine_2_7_class_options(MachineClass *mc)
1225 {
1226     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
1227 
1228     s390mc->cpu_model_allowed = false;
1229     ccw_machine_2_8_class_options(mc);
1230     compat_props_add(mc->compat_props, hw_compat_2_7, hw_compat_2_7_len);
1231 }
1232 DEFINE_CCW_MACHINE(2_7, "2.7", false);
1233 
1234 static void ccw_machine_2_6_instance_options(MachineState *machine)
1235 {
1236     ccw_machine_2_7_instance_options(machine);
1237 }
1238 
1239 static void ccw_machine_2_6_class_options(MachineClass *mc)
1240 {
1241     S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
1242     static GlobalProperty compat[] = {
1243         { TYPE_S390_IPL, "iplbext_migration", "off", },
1244          { TYPE_VIRTUAL_CSS_BRIDGE, "css_dev_path", "off", },
1245     };
1246 
1247     s390mc->ri_allowed = false;
1248     ccw_machine_2_7_class_options(mc);
1249     compat_props_add(mc->compat_props, hw_compat_2_6, hw_compat_2_6_len);
1250     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
1251 }
1252 DEFINE_CCW_MACHINE(2_6, "2.6", false);
1253 
1254 static void ccw_machine_2_5_instance_options(MachineState *machine)
1255 {
1256     ccw_machine_2_6_instance_options(machine);
1257 }
1258 
1259 static void ccw_machine_2_5_class_options(MachineClass *mc)
1260 {
1261     ccw_machine_2_6_class_options(mc);
1262     compat_props_add(mc->compat_props, hw_compat_2_5, hw_compat_2_5_len);
1263 }
1264 DEFINE_CCW_MACHINE(2_5, "2.5", false);
1265 
1266 static void ccw_machine_2_4_instance_options(MachineState *machine)
1267 {
1268     ccw_machine_2_5_instance_options(machine);
1269 }
1270 
1271 static void ccw_machine_2_4_class_options(MachineClass *mc)
1272 {
1273     static GlobalProperty compat[] = {
1274         { TYPE_S390_SKEYS, "migration-enabled", "off", },
1275         { "virtio-blk-ccw", "max_revision", "0", },
1276         { "virtio-balloon-ccw", "max_revision", "0", },
1277         { "virtio-serial-ccw", "max_revision", "0", },
1278         { "virtio-9p-ccw", "max_revision", "0", },
1279         { "virtio-rng-ccw", "max_revision", "0", },
1280         { "virtio-net-ccw", "max_revision", "0", },
1281         { "virtio-scsi-ccw", "max_revision", "0", },
1282         { "vhost-scsi-ccw", "max_revision", "0", },
1283     };
1284 
1285     ccw_machine_2_5_class_options(mc);
1286     compat_props_add(mc->compat_props, hw_compat_2_4, hw_compat_2_4_len);
1287     compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
1288 }
1289 DEFINE_CCW_MACHINE(2_4, "2.4", false);
1290 
1291 static void ccw_machine_register_types(void)
1292 {
1293     type_register_static(&ccw_machine_info);
1294 }
1295 
1296 type_init(ccw_machine_register_types)
1297