kvm-all: drop kvm_setup_guest_memory
[qemu/ar7.git] / hw / s390x / s390-virtio-ccw.c
bloba63b4e8c61773c7402a422006a7ab743cf26757c
1 /*
2 * virtio ccw machine
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
9 * directory.
12 #include "qemu/osdep.h"
13 #include "qapi/error.h"
14 #include "qemu-common.h"
15 #include "cpu.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"
28 #include "ipl.h"
29 #include "hw/s390x/s390-virtio-ccw.h"
30 #include "hw/s390x/css-bridge.h"
32 static const char *const reset_dev_types[] = {
33 TYPE_VIRTUAL_CSS_BRIDGE,
34 "s390-sclp-event-facility",
35 "s390-flic",
36 "diag288",
39 void subsystem_reset(void)
41 DeviceState *dev;
42 int i;
44 for (i = 0; i < ARRAY_SIZE(reset_dev_types); i++) {
45 dev = DEVICE(object_resolve_path_type("", reset_dev_types[i], NULL));
46 if (dev) {
47 qdev_reset_all(dev);
52 static int virtio_ccw_hcall_notify(const uint64_t *args)
54 uint64_t subch_id = args[0];
55 uint64_t queue = args[1];
56 SubchDev *sch;
57 int cssid, ssid, schid, m;
59 if (ioinst_disassemble_sch_ident(subch_id, &m, &cssid, &ssid, &schid)) {
60 return -EINVAL;
62 sch = css_find_subch(m, cssid, ssid, schid);
63 if (!sch || !css_subch_visible(sch)) {
64 return -EINVAL;
66 if (queue >= VIRTIO_CCW_QUEUE_MAX) {
67 return -EINVAL;
69 virtio_queue_notify(virtio_ccw_get_vdev(sch), queue);
70 return 0;
74 static int virtio_ccw_hcall_early_printk(const uint64_t *args)
76 uint64_t mem = args[0];
78 if (mem < ram_size) {
79 /* Early printk */
80 return 0;
82 return -EINVAL;
85 static void virtio_ccw_register_hcalls(void)
87 s390_register_virtio_hypercall(KVM_S390_VIRTIO_CCW_NOTIFY,
88 virtio_ccw_hcall_notify);
89 /* Tolerate early printk. */
90 s390_register_virtio_hypercall(KVM_S390_VIRTIO_NOTIFY,
91 virtio_ccw_hcall_early_printk);
94 void s390_memory_init(ram_addr_t mem_size)
96 MemoryRegion *sysmem = get_system_memory();
97 MemoryRegion *ram = g_new(MemoryRegion, 1);
99 /* allocate RAM for core */
100 memory_region_allocate_system_memory(ram, NULL, "s390.ram", mem_size);
101 memory_region_add_subregion(sysmem, 0, ram);
103 /* Initialize storage key device */
104 s390_skeys_init();
107 static void ccw_init(MachineState *machine)
109 int ret;
110 VirtualCssBus *css_bus;
111 DeviceState *dev;
113 s390_sclp_init();
114 s390_memory_init(machine->ram_size);
116 /* get a BUS */
117 css_bus = virtual_css_bus_init();
118 s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline,
119 machine->initrd_filename, "s390-ccw.img", true);
120 s390_flic_init();
122 dev = qdev_create(NULL, TYPE_S390_PCI_HOST_BRIDGE);
123 object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE,
124 OBJECT(dev), NULL);
125 qdev_init_nofail(dev);
127 /* register hypercalls */
128 virtio_ccw_register_hcalls();
130 /* init CPUs */
131 s390_init_cpus(machine);
133 if (kvm_enabled()) {
134 kvm_s390_enable_css_support(s390_cpu_addr2state(0));
137 * Create virtual css and set it as default so that non mcss-e
138 * enabled guests only see virtio devices.
140 ret = css_create_css_image(VIRTUAL_CSSID, true);
141 assert(ret == 0);
143 /* Create VirtIO network adapters */
144 s390_create_virtio_net(BUS(css_bus), "virtio-net-ccw");
146 /* Register savevm handler for guest TOD clock */
147 register_savevm(NULL, "todclock", 0, 1,
148 gtod_save, gtod_load, kvm_state);
151 static void s390_cpu_plug(HotplugHandler *hotplug_dev,
152 DeviceState *dev, Error **errp)
154 gchar *name;
155 S390CPU *cpu = S390_CPU(dev);
156 CPUState *cs = CPU(dev);
158 name = g_strdup_printf("cpu[%i]", cpu->env.cpu_num);
159 object_property_set_link(OBJECT(hotplug_dev), OBJECT(cs), name,
160 errp);
161 g_free(name);
164 static void s390_machine_device_plug(HotplugHandler *hotplug_dev,
165 DeviceState *dev, Error **errp)
167 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
168 s390_cpu_plug(hotplug_dev, dev, errp);
172 static HotplugHandler *s390_get_hotplug_handler(MachineState *machine,
173 DeviceState *dev)
175 if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
176 return HOTPLUG_HANDLER(machine);
178 return NULL;
181 static void s390_hot_add_cpu(const int64_t id, Error **errp)
183 MachineState *machine = MACHINE(qdev_get_machine());
185 s390x_new_cpu(machine->cpu_model, id, errp);
188 static void ccw_machine_class_init(ObjectClass *oc, void *data)
190 MachineClass *mc = MACHINE_CLASS(oc);
191 NMIClass *nc = NMI_CLASS(oc);
192 HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc);
193 S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc);
195 s390mc->ri_allowed = true;
196 mc->init = ccw_init;
197 mc->reset = s390_machine_reset;
198 mc->hot_add_cpu = s390_hot_add_cpu;
199 mc->block_default_type = IF_VIRTIO;
200 mc->no_cdrom = 1;
201 mc->no_floppy = 1;
202 mc->no_serial = 1;
203 mc->no_parallel = 1;
204 mc->no_sdcard = 1;
205 mc->use_sclp = 1;
206 mc->max_cpus = 248;
207 mc->get_hotplug_handler = s390_get_hotplug_handler;
208 hc->plug = s390_machine_device_plug;
209 nc->nmi_monitor_handler = s390_nmi;
212 static inline bool machine_get_aes_key_wrap(Object *obj, Error **errp)
214 S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
216 return ms->aes_key_wrap;
219 static inline void machine_set_aes_key_wrap(Object *obj, bool value,
220 Error **errp)
222 S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
224 ms->aes_key_wrap = value;
227 static inline bool machine_get_dea_key_wrap(Object *obj, Error **errp)
229 S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
231 return ms->dea_key_wrap;
234 static inline void machine_set_dea_key_wrap(Object *obj, bool value,
235 Error **errp)
237 S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
239 ms->dea_key_wrap = value;
242 bool ri_allowed(void)
244 if (kvm_enabled()) {
245 MachineClass *mc = MACHINE_GET_CLASS(qdev_get_machine());
246 if (object_class_dynamic_cast(OBJECT_CLASS(mc),
247 TYPE_S390_CCW_MACHINE)) {
248 S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc);
250 return s390mc->ri_allowed;
253 * Make sure the "none" machine can have ri, otherwise it won't * be
254 * unlocked in KVM and therefore the host CPU model might be wrong.
256 return true;
258 return 0;
261 static inline void s390_machine_initfn(Object *obj)
263 object_property_add_bool(obj, "aes-key-wrap",
264 machine_get_aes_key_wrap,
265 machine_set_aes_key_wrap, NULL);
266 object_property_set_description(obj, "aes-key-wrap",
267 "enable/disable AES key wrapping using the CPACF wrapping key",
268 NULL);
269 object_property_set_bool(obj, true, "aes-key-wrap", NULL);
271 object_property_add_bool(obj, "dea-key-wrap",
272 machine_get_dea_key_wrap,
273 machine_set_dea_key_wrap, NULL);
274 object_property_set_description(obj, "dea-key-wrap",
275 "enable/disable DEA key wrapping using the CPACF wrapping key",
276 NULL);
277 object_property_set_bool(obj, true, "dea-key-wrap", NULL);
280 static const TypeInfo ccw_machine_info = {
281 .name = TYPE_S390_CCW_MACHINE,
282 .parent = TYPE_MACHINE,
283 .abstract = true,
284 .instance_size = sizeof(S390CcwMachineState),
285 .instance_init = s390_machine_initfn,
286 .class_size = sizeof(S390CcwMachineClass),
287 .class_init = ccw_machine_class_init,
288 .interfaces = (InterfaceInfo[]) {
289 { TYPE_NMI },
290 { TYPE_HOTPLUG_HANDLER},
295 #define DEFINE_CCW_MACHINE(suffix, verstr, latest) \
296 static void ccw_machine_##suffix##_class_init(ObjectClass *oc, \
297 void *data) \
299 MachineClass *mc = MACHINE_CLASS(oc); \
300 ccw_machine_##suffix##_class_options(mc); \
301 mc->desc = "VirtIO-ccw based S390 machine v" verstr; \
302 if (latest) { \
303 mc->alias = "s390-ccw-virtio"; \
304 mc->is_default = 1; \
307 static void ccw_machine_##suffix##_instance_init(Object *obj) \
309 MachineState *machine = MACHINE(obj); \
310 ccw_machine_##suffix##_instance_options(machine); \
312 static const TypeInfo ccw_machine_##suffix##_info = { \
313 .name = MACHINE_TYPE_NAME("s390-ccw-virtio-" verstr), \
314 .parent = TYPE_S390_CCW_MACHINE, \
315 .class_init = ccw_machine_##suffix##_class_init, \
316 .instance_init = ccw_machine_##suffix##_instance_init, \
317 }; \
318 static void ccw_machine_register_##suffix(void) \
320 type_register_static(&ccw_machine_##suffix##_info); \
322 type_init(ccw_machine_register_##suffix)
324 #define CCW_COMPAT_2_7 \
325 HW_COMPAT_2_7
327 #define CCW_COMPAT_2_6 \
328 CCW_COMPAT_2_7 \
329 HW_COMPAT_2_6 \
331 .driver = TYPE_S390_IPL,\
332 .property = "iplbext_migration",\
333 .value = "off",\
334 }, {\
335 .driver = TYPE_VIRTUAL_CSS_BRIDGE,\
336 .property = "css_dev_path",\
337 .value = "off",\
340 #define CCW_COMPAT_2_5 \
341 CCW_COMPAT_2_6 \
342 HW_COMPAT_2_5
344 #define CCW_COMPAT_2_4 \
345 HW_COMPAT_2_4 \
347 .driver = TYPE_S390_SKEYS,\
348 .property = "migration-enabled",\
349 .value = "off",\
350 },{\
351 .driver = "virtio-blk-ccw",\
352 .property = "max_revision",\
353 .value = "0",\
354 },{\
355 .driver = "virtio-balloon-ccw",\
356 .property = "max_revision",\
357 .value = "0",\
358 },{\
359 .driver = "virtio-serial-ccw",\
360 .property = "max_revision",\
361 .value = "0",\
362 },{\
363 .driver = "virtio-9p-ccw",\
364 .property = "max_revision",\
365 .value = "0",\
366 },{\
367 .driver = "virtio-rng-ccw",\
368 .property = "max_revision",\
369 .value = "0",\
370 },{\
371 .driver = "virtio-net-ccw",\
372 .property = "max_revision",\
373 .value = "0",\
374 },{\
375 .driver = "virtio-scsi-ccw",\
376 .property = "max_revision",\
377 .value = "0",\
378 },{\
379 .driver = "vhost-scsi-ccw",\
380 .property = "max_revision",\
381 .value = "0",\
384 static void ccw_machine_2_8_instance_options(MachineState *machine)
388 static void ccw_machine_2_8_class_options(MachineClass *mc)
391 DEFINE_CCW_MACHINE(2_8, "2.8", true);
393 static void ccw_machine_2_7_instance_options(MachineState *machine)
395 ccw_machine_2_8_instance_options(machine);
398 static void ccw_machine_2_7_class_options(MachineClass *mc)
400 ccw_machine_2_8_class_options(mc);
401 SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_7);
403 DEFINE_CCW_MACHINE(2_7, "2.7", false);
405 static void ccw_machine_2_6_instance_options(MachineState *machine)
407 ccw_machine_2_7_instance_options(machine);
410 static void ccw_machine_2_6_class_options(MachineClass *mc)
412 S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc);
414 s390mc->ri_allowed = false;
415 ccw_machine_2_7_class_options(mc);
416 SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_6);
418 DEFINE_CCW_MACHINE(2_6, "2.6", false);
420 static void ccw_machine_2_5_instance_options(MachineState *machine)
422 ccw_machine_2_6_instance_options(machine);
425 static void ccw_machine_2_5_class_options(MachineClass *mc)
427 ccw_machine_2_6_class_options(mc);
428 SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_5);
430 DEFINE_CCW_MACHINE(2_5, "2.5", false);
432 static void ccw_machine_2_4_instance_options(MachineState *machine)
434 ccw_machine_2_5_instance_options(machine);
437 static void ccw_machine_2_4_class_options(MachineClass *mc)
439 ccw_machine_2_5_class_options(mc);
440 SET_MACHINE_COMPAT(mc, CCW_COMPAT_2_4);
442 DEFINE_CCW_MACHINE(2_4, "2.4", false);
444 static void ccw_machine_register_types(void)
446 type_register_static(&ccw_machine_info);
449 type_init(ccw_machine_register_types)