4 * Copyright 2012 IBM Corp.
5 * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
7 * This work is licensed under the terms of the GNU GPL, version 2 or (at
8 * your option) any later version. See the COPYING file in the top-level
12 #include "qemu/osdep.h"
13 #include "qapi/error.h"
14 #include "qemu-common.h"
16 #include "hw/boards.h"
17 #include "exec/address-spaces.h"
18 #include "s390-virtio.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 "s390-pci-bus.h"
26 #include "hw/s390x/storage-keys.h"
27 #include "hw/compat.h"
29 #include "hw/s390x/s390-virtio-ccw.h"
31 static const char *const reset_dev_types
[] = {
33 "s390-sclp-event-facility",
38 void subsystem_reset(void)
43 for (i
= 0; i
< ARRAY_SIZE(reset_dev_types
); i
++) {
44 dev
= DEVICE(object_resolve_path_type("", reset_dev_types
[i
], NULL
));
51 static int virtio_ccw_hcall_notify(const uint64_t *args
)
53 uint64_t subch_id
= args
[0];
54 uint64_t queue
= args
[1];
56 int cssid
, ssid
, schid
, m
;
58 if (ioinst_disassemble_sch_ident(subch_id
, &m
, &cssid
, &ssid
, &schid
)) {
61 sch
= css_find_subch(m
, cssid
, ssid
, schid
);
62 if (!sch
|| !css_subch_visible(sch
)) {
65 if (queue
>= VIRTIO_CCW_QUEUE_MAX
) {
68 virtio_queue_notify(virtio_ccw_get_vdev(sch
), queue
);
73 static int virtio_ccw_hcall_early_printk(const uint64_t *args
)
75 uint64_t mem
= args
[0];
84 static void virtio_ccw_register_hcalls(void)
86 s390_register_virtio_hypercall(KVM_S390_VIRTIO_CCW_NOTIFY
,
87 virtio_ccw_hcall_notify
);
88 /* Tolerate early printk. */
89 s390_register_virtio_hypercall(KVM_S390_VIRTIO_NOTIFY
,
90 virtio_ccw_hcall_early_printk
);
93 void s390_memory_init(ram_addr_t mem_size
)
95 MemoryRegion
*sysmem
= get_system_memory();
96 MemoryRegion
*ram
= g_new(MemoryRegion
, 1);
98 /* allocate RAM for core */
99 memory_region_allocate_system_memory(ram
, NULL
, "s390.ram", mem_size
);
100 memory_region_add_subregion(sysmem
, 0, ram
);
102 /* Initialize storage key device */
106 static void ccw_init(MachineState
*machine
)
109 VirtualCssBus
*css_bus
;
113 s390_memory_init(machine
->ram_size
);
116 css_bus
= virtual_css_bus_init();
117 s390_init_ipl_dev(machine
->kernel_filename
, machine
->kernel_cmdline
,
118 machine
->initrd_filename
, "s390-ccw.img", true);
121 dev
= qdev_create(NULL
, TYPE_S390_PCI_HOST_BRIDGE
);
122 object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE
,
124 qdev_init_nofail(dev
);
126 /* register hypercalls */
127 virtio_ccw_register_hcalls();
130 s390_init_cpus(machine
);
133 kvm_s390_enable_css_support(s390_cpu_addr2state(0));
136 * Create virtual css and set it as default so that non mcss-e
137 * enabled guests only see virtio devices.
139 ret
= css_create_css_image(VIRTUAL_CSSID
, true);
142 /* Create VirtIO network adapters */
143 s390_create_virtio_net(BUS(css_bus
), "virtio-net-ccw");
145 /* Register savevm handler for guest TOD clock */
146 register_savevm(NULL
, "todclock", 0, 1,
147 gtod_save
, gtod_load
, kvm_state
);
150 static void s390_cpu_plug(HotplugHandler
*hotplug_dev
,
151 DeviceState
*dev
, Error
**errp
)
154 S390CPU
*cpu
= S390_CPU(dev
);
155 CPUState
*cs
= CPU(dev
);
157 name
= g_strdup_printf("cpu[%i]", cpu
->env
.cpu_num
);
158 object_property_set_link(OBJECT(hotplug_dev
), OBJECT(cs
), name
,
163 static void s390_machine_device_plug(HotplugHandler
*hotplug_dev
,
164 DeviceState
*dev
, Error
**errp
)
166 if (object_dynamic_cast(OBJECT(dev
), TYPE_CPU
)) {
167 s390_cpu_plug(hotplug_dev
, dev
, errp
);
171 static HotplugHandler
*s390_get_hotplug_handler(MachineState
*machine
,
174 if (object_dynamic_cast(OBJECT(dev
), TYPE_CPU
)) {
175 return HOTPLUG_HANDLER(machine
);
180 static void s390_hot_add_cpu(const int64_t id
, Error
**errp
)
182 MachineState
*machine
= MACHINE(qdev_get_machine());
185 s390x_new_cpu(machine
->cpu_model
, id
, &err
);
186 error_propagate(errp
, err
);
189 static void ccw_machine_class_init(ObjectClass
*oc
, void *data
)
191 MachineClass
*mc
= MACHINE_CLASS(oc
);
192 NMIClass
*nc
= NMI_CLASS(oc
);
193 HotplugHandlerClass
*hc
= HOTPLUG_HANDLER_CLASS(oc
);
194 S390CcwMachineClass
*s390mc
= S390_MACHINE_CLASS(mc
);
196 s390mc
->ri_allowed
= true;
198 mc
->reset
= s390_machine_reset
;
199 mc
->hot_add_cpu
= s390_hot_add_cpu
;
200 mc
->block_default_type
= IF_VIRTIO
;
208 mc
->get_hotplug_handler
= s390_get_hotplug_handler
;
209 hc
->plug
= s390_machine_device_plug
;
210 nc
->nmi_monitor_handler
= s390_nmi
;
213 static inline bool machine_get_aes_key_wrap(Object
*obj
, Error
**errp
)
215 S390CcwMachineState
*ms
= S390_CCW_MACHINE(obj
);
217 return ms
->aes_key_wrap
;
220 static inline void machine_set_aes_key_wrap(Object
*obj
, bool value
,
223 S390CcwMachineState
*ms
= S390_CCW_MACHINE(obj
);
225 ms
->aes_key_wrap
= value
;
228 static inline bool machine_get_dea_key_wrap(Object
*obj
, Error
**errp
)
230 S390CcwMachineState
*ms
= S390_CCW_MACHINE(obj
);
232 return ms
->dea_key_wrap
;
235 static inline void machine_set_dea_key_wrap(Object
*obj
, bool value
,
238 S390CcwMachineState
*ms
= S390_CCW_MACHINE(obj
);
240 ms
->dea_key_wrap
= value
;
243 bool ri_allowed(void)
246 MachineClass
*mc
= MACHINE_GET_CLASS(qdev_get_machine());
247 if (object_class_dynamic_cast(OBJECT_CLASS(mc
),
248 TYPE_S390_CCW_MACHINE
)) {
249 S390CcwMachineClass
*s390mc
= S390_MACHINE_CLASS(mc
);
251 return s390mc
->ri_allowed
;
257 static inline void s390_machine_initfn(Object
*obj
)
259 object_property_add_bool(obj
, "aes-key-wrap",
260 machine_get_aes_key_wrap
,
261 machine_set_aes_key_wrap
, NULL
);
262 object_property_set_description(obj
, "aes-key-wrap",
263 "enable/disable AES key wrapping using the CPACF wrapping key",
265 object_property_set_bool(obj
, true, "aes-key-wrap", NULL
);
267 object_property_add_bool(obj
, "dea-key-wrap",
268 machine_get_dea_key_wrap
,
269 machine_set_dea_key_wrap
, NULL
);
270 object_property_set_description(obj
, "dea-key-wrap",
271 "enable/disable DEA key wrapping using the CPACF wrapping key",
273 object_property_set_bool(obj
, true, "dea-key-wrap", NULL
);
276 static const TypeInfo ccw_machine_info
= {
277 .name
= TYPE_S390_CCW_MACHINE
,
278 .parent
= TYPE_MACHINE
,
280 .instance_size
= sizeof(S390CcwMachineState
),
281 .instance_init
= s390_machine_initfn
,
282 .class_size
= sizeof(S390CcwMachineClass
),
283 .class_init
= ccw_machine_class_init
,
284 .interfaces
= (InterfaceInfo
[]) {
286 { TYPE_HOTPLUG_HANDLER
},
291 #define DEFINE_CCW_MACHINE(suffix, verstr, latest) \
292 static void ccw_machine_##suffix##_class_init(ObjectClass *oc, \
295 MachineClass *mc = MACHINE_CLASS(oc); \
296 ccw_machine_##suffix##_class_options(mc); \
297 mc->desc = "VirtIO-ccw based S390 machine v" verstr; \
299 mc->alias = "s390-ccw-virtio"; \
300 mc->is_default = 1; \
303 static void ccw_machine_##suffix##_instance_init(Object *obj) \
305 MachineState *machine = MACHINE(obj); \
306 ccw_machine_##suffix##_instance_options(machine); \
308 static const TypeInfo ccw_machine_##suffix##_info = { \
309 .name = MACHINE_TYPE_NAME("s390-ccw-virtio-" verstr), \
310 .parent = TYPE_S390_CCW_MACHINE, \
311 .class_init = ccw_machine_##suffix##_class_init, \
312 .instance_init = ccw_machine_##suffix##_instance_init, \
314 static void ccw_machine_register_##suffix(void) \
316 type_register_static(&ccw_machine_##suffix##_info); \
318 type_init(ccw_machine_register_##suffix)
320 #define CCW_COMPAT_2_6 \
323 .driver = TYPE_S390_IPL,\
324 .property = "iplbext_migration",\
328 #define CCW_COMPAT_2_5 \
332 #define CCW_COMPAT_2_4 \
335 .driver = TYPE_S390_SKEYS,\
336 .property = "migration-enabled",\
339 .driver = "virtio-blk-ccw",\
340 .property = "max_revision",\
343 .driver = "virtio-balloon-ccw",\
344 .property = "max_revision",\
347 .driver = "virtio-serial-ccw",\
348 .property = "max_revision",\
351 .driver = "virtio-9p-ccw",\
352 .property = "max_revision",\
355 .driver = "virtio-rng-ccw",\
356 .property = "max_revision",\
359 .driver = "virtio-net-ccw",\
360 .property = "max_revision",\
363 .driver = "virtio-scsi-ccw",\
364 .property = "max_revision",\
367 .driver = "vhost-scsi-ccw",\
368 .property = "max_revision",\
372 static void ccw_machine_2_7_instance_options(MachineState
*machine
)
376 static void ccw_machine_2_7_class_options(MachineClass
*mc
)
379 DEFINE_CCW_MACHINE(2_7
, "2.7", true);
381 static void ccw_machine_2_6_instance_options(MachineState
*machine
)
383 ccw_machine_2_7_instance_options(machine
);
386 static void ccw_machine_2_6_class_options(MachineClass
*mc
)
388 S390CcwMachineClass
*s390mc
= S390_MACHINE_CLASS(mc
);
390 s390mc
->ri_allowed
= false;
391 ccw_machine_2_7_class_options(mc
);
392 SET_MACHINE_COMPAT(mc
, CCW_COMPAT_2_6
);
394 DEFINE_CCW_MACHINE(2_6
, "2.6", false);
396 static void ccw_machine_2_5_instance_options(MachineState
*machine
)
398 ccw_machine_2_6_instance_options(machine
);
401 static void ccw_machine_2_5_class_options(MachineClass
*mc
)
403 ccw_machine_2_6_class_options(mc
);
404 SET_MACHINE_COMPAT(mc
, CCW_COMPAT_2_5
);
406 DEFINE_CCW_MACHINE(2_5
, "2.5", false);
408 static void ccw_machine_2_4_instance_options(MachineState
*machine
)
410 ccw_machine_2_5_instance_options(machine
);
413 static void ccw_machine_2_4_class_options(MachineClass
*mc
)
415 ccw_machine_2_5_class_options(mc
);
416 SET_MACHINE_COMPAT(mc
, CCW_COMPAT_2_4
);
418 DEFINE_CCW_MACHINE(2_4
, "2.4", false);
420 static void ccw_machine_register_types(void)
422 type_register_static(&ccw_machine_info
);
425 type_init(ccw_machine_register_types
)