Commit | Line | Data |
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b0c632db HC |
1 | /* |
2 | * s390host.c -- hosting zSeries kernel virtual machines | |
3 | * | |
628eb9b8 | 4 | * Copyright IBM Corp. 2008,2009 |
b0c632db HC |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License (version 2 only) | |
8 | * as published by the Free Software Foundation. | |
9 | * | |
10 | * Author(s): Carsten Otte <cotte@de.ibm.com> | |
11 | * Christian Borntraeger <borntraeger@de.ibm.com> | |
12 | * Heiko Carstens <heiko.carstens@de.ibm.com> | |
628eb9b8 | 13 | * Christian Ehrhardt <ehrhardt@de.ibm.com> |
b0c632db HC |
14 | */ |
15 | ||
16 | #include <linux/compiler.h> | |
17 | #include <linux/err.h> | |
18 | #include <linux/fs.h> | |
ca872302 | 19 | #include <linux/hrtimer.h> |
b0c632db HC |
20 | #include <linux/init.h> |
21 | #include <linux/kvm.h> | |
22 | #include <linux/kvm_host.h> | |
23 | #include <linux/module.h> | |
24 | #include <linux/slab.h> | |
ba5c1e9b | 25 | #include <linux/timer.h> |
cbb870c8 | 26 | #include <asm/asm-offsets.h> |
b0c632db HC |
27 | #include <asm/lowcore.h> |
28 | #include <asm/pgtable.h> | |
f5daba1d | 29 | #include <asm/nmi.h> |
a0616cde | 30 | #include <asm/switch_to.h> |
8f2abe6a | 31 | #include "kvm-s390.h" |
b0c632db HC |
32 | #include "gaccess.h" |
33 | ||
34 | #define VCPU_STAT(x) offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU | |
35 | ||
36 | struct kvm_stats_debugfs_item debugfs_entries[] = { | |
37 | { "userspace_handled", VCPU_STAT(exit_userspace) }, | |
0eaeafa1 | 38 | { "exit_null", VCPU_STAT(exit_null) }, |
8f2abe6a CB |
39 | { "exit_validity", VCPU_STAT(exit_validity) }, |
40 | { "exit_stop_request", VCPU_STAT(exit_stop_request) }, | |
41 | { "exit_external_request", VCPU_STAT(exit_external_request) }, | |
42 | { "exit_external_interrupt", VCPU_STAT(exit_external_interrupt) }, | |
ba5c1e9b CO |
43 | { "exit_instruction", VCPU_STAT(exit_instruction) }, |
44 | { "exit_program_interruption", VCPU_STAT(exit_program_interruption) }, | |
45 | { "exit_instr_and_program_int", VCPU_STAT(exit_instr_and_program) }, | |
f5e10b09 | 46 | { "instruction_lctlg", VCPU_STAT(instruction_lctlg) }, |
ba5c1e9b CO |
47 | { "instruction_lctl", VCPU_STAT(instruction_lctl) }, |
48 | { "deliver_emergency_signal", VCPU_STAT(deliver_emergency_signal) }, | |
7697e71f | 49 | { "deliver_external_call", VCPU_STAT(deliver_external_call) }, |
ba5c1e9b CO |
50 | { "deliver_service_signal", VCPU_STAT(deliver_service_signal) }, |
51 | { "deliver_virtio_interrupt", VCPU_STAT(deliver_virtio_interrupt) }, | |
52 | { "deliver_stop_signal", VCPU_STAT(deliver_stop_signal) }, | |
53 | { "deliver_prefix_signal", VCPU_STAT(deliver_prefix_signal) }, | |
54 | { "deliver_restart_signal", VCPU_STAT(deliver_restart_signal) }, | |
55 | { "deliver_program_interruption", VCPU_STAT(deliver_program_int) }, | |
56 | { "exit_wait_state", VCPU_STAT(exit_wait_state) }, | |
453423dc CB |
57 | { "instruction_stidp", VCPU_STAT(instruction_stidp) }, |
58 | { "instruction_spx", VCPU_STAT(instruction_spx) }, | |
59 | { "instruction_stpx", VCPU_STAT(instruction_stpx) }, | |
60 | { "instruction_stap", VCPU_STAT(instruction_stap) }, | |
61 | { "instruction_storage_key", VCPU_STAT(instruction_storage_key) }, | |
62 | { "instruction_stsch", VCPU_STAT(instruction_stsch) }, | |
63 | { "instruction_chsc", VCPU_STAT(instruction_chsc) }, | |
64 | { "instruction_stsi", VCPU_STAT(instruction_stsi) }, | |
65 | { "instruction_stfl", VCPU_STAT(instruction_stfl) }, | |
bb25b9ba | 66 | { "instruction_tprot", VCPU_STAT(instruction_tprot) }, |
5288fbf0 | 67 | { "instruction_sigp_sense", VCPU_STAT(instruction_sigp_sense) }, |
bd59d3a4 | 68 | { "instruction_sigp_sense_running", VCPU_STAT(instruction_sigp_sense_running) }, |
7697e71f | 69 | { "instruction_sigp_external_call", VCPU_STAT(instruction_sigp_external_call) }, |
5288fbf0 CB |
70 | { "instruction_sigp_emergency", VCPU_STAT(instruction_sigp_emergency) }, |
71 | { "instruction_sigp_stop", VCPU_STAT(instruction_sigp_stop) }, | |
72 | { "instruction_sigp_set_arch", VCPU_STAT(instruction_sigp_arch) }, | |
73 | { "instruction_sigp_set_prefix", VCPU_STAT(instruction_sigp_prefix) }, | |
74 | { "instruction_sigp_restart", VCPU_STAT(instruction_sigp_restart) }, | |
388186bc | 75 | { "diagnose_10", VCPU_STAT(diagnose_10) }, |
e28acfea | 76 | { "diagnose_44", VCPU_STAT(diagnose_44) }, |
41628d33 | 77 | { "diagnose_9c", VCPU_STAT(diagnose_9c) }, |
b0c632db HC |
78 | { NULL } |
79 | }; | |
80 | ||
ef50f7ac | 81 | static unsigned long long *facilities; |
b0c632db HC |
82 | |
83 | /* Section: not file related */ | |
10474ae8 | 84 | int kvm_arch_hardware_enable(void *garbage) |
b0c632db HC |
85 | { |
86 | /* every s390 is virtualization enabled ;-) */ | |
10474ae8 | 87 | return 0; |
b0c632db HC |
88 | } |
89 | ||
90 | void kvm_arch_hardware_disable(void *garbage) | |
91 | { | |
92 | } | |
93 | ||
b0c632db HC |
94 | int kvm_arch_hardware_setup(void) |
95 | { | |
96 | return 0; | |
97 | } | |
98 | ||
99 | void kvm_arch_hardware_unsetup(void) | |
100 | { | |
101 | } | |
102 | ||
103 | void kvm_arch_check_processor_compat(void *rtn) | |
104 | { | |
105 | } | |
106 | ||
107 | int kvm_arch_init(void *opaque) | |
108 | { | |
109 | return 0; | |
110 | } | |
111 | ||
112 | void kvm_arch_exit(void) | |
113 | { | |
114 | } | |
115 | ||
116 | /* Section: device related */ | |
117 | long kvm_arch_dev_ioctl(struct file *filp, | |
118 | unsigned int ioctl, unsigned long arg) | |
119 | { | |
120 | if (ioctl == KVM_S390_ENABLE_SIE) | |
121 | return s390_enable_sie(); | |
122 | return -EINVAL; | |
123 | } | |
124 | ||
125 | int kvm_dev_ioctl_check_extension(long ext) | |
126 | { | |
d7b0b5eb CO |
127 | int r; |
128 | ||
2bd0ac4e | 129 | switch (ext) { |
d7b0b5eb | 130 | case KVM_CAP_S390_PSW: |
b6cf8788 | 131 | case KVM_CAP_S390_GMAP: |
52e16b18 | 132 | case KVM_CAP_SYNC_MMU: |
1efd0f59 CO |
133 | #ifdef CONFIG_KVM_S390_UCONTROL |
134 | case KVM_CAP_S390_UCONTROL: | |
135 | #endif | |
60b413c9 | 136 | case KVM_CAP_SYNC_REGS: |
d7b0b5eb CO |
137 | r = 1; |
138 | break; | |
e726b1bd CB |
139 | case KVM_CAP_NR_VCPUS: |
140 | case KVM_CAP_MAX_VCPUS: | |
141 | r = KVM_MAX_VCPUS; | |
142 | break; | |
2bd0ac4e | 143 | default: |
d7b0b5eb | 144 | r = 0; |
2bd0ac4e | 145 | } |
d7b0b5eb | 146 | return r; |
b0c632db HC |
147 | } |
148 | ||
149 | /* Section: vm related */ | |
150 | /* | |
151 | * Get (and clear) the dirty memory log for a memory slot. | |
152 | */ | |
153 | int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, | |
154 | struct kvm_dirty_log *log) | |
155 | { | |
156 | return 0; | |
157 | } | |
158 | ||
159 | long kvm_arch_vm_ioctl(struct file *filp, | |
160 | unsigned int ioctl, unsigned long arg) | |
161 | { | |
162 | struct kvm *kvm = filp->private_data; | |
163 | void __user *argp = (void __user *)arg; | |
164 | int r; | |
165 | ||
166 | switch (ioctl) { | |
ba5c1e9b CO |
167 | case KVM_S390_INTERRUPT: { |
168 | struct kvm_s390_interrupt s390int; | |
169 | ||
170 | r = -EFAULT; | |
171 | if (copy_from_user(&s390int, argp, sizeof(s390int))) | |
172 | break; | |
173 | r = kvm_s390_inject_vm(kvm, &s390int); | |
174 | break; | |
175 | } | |
b0c632db | 176 | default: |
367e1319 | 177 | r = -ENOTTY; |
b0c632db HC |
178 | } |
179 | ||
180 | return r; | |
181 | } | |
182 | ||
e08b9637 | 183 | int kvm_arch_init_vm(struct kvm *kvm, unsigned long type) |
b0c632db | 184 | { |
b0c632db HC |
185 | int rc; |
186 | char debug_name[16]; | |
187 | ||
e08b9637 CO |
188 | rc = -EINVAL; |
189 | #ifdef CONFIG_KVM_S390_UCONTROL | |
190 | if (type & ~KVM_VM_S390_UCONTROL) | |
191 | goto out_err; | |
192 | if ((type & KVM_VM_S390_UCONTROL) && (!capable(CAP_SYS_ADMIN))) | |
193 | goto out_err; | |
194 | #else | |
195 | if (type) | |
196 | goto out_err; | |
197 | #endif | |
198 | ||
b0c632db HC |
199 | rc = s390_enable_sie(); |
200 | if (rc) | |
d89f5eff | 201 | goto out_err; |
b0c632db | 202 | |
b290411a CO |
203 | rc = -ENOMEM; |
204 | ||
b0c632db HC |
205 | kvm->arch.sca = (struct sca_block *) get_zeroed_page(GFP_KERNEL); |
206 | if (!kvm->arch.sca) | |
d89f5eff | 207 | goto out_err; |
b0c632db HC |
208 | |
209 | sprintf(debug_name, "kvm-%u", current->pid); | |
210 | ||
211 | kvm->arch.dbf = debug_register(debug_name, 8, 2, 8 * sizeof(long)); | |
212 | if (!kvm->arch.dbf) | |
213 | goto out_nodbf; | |
214 | ||
ba5c1e9b CO |
215 | spin_lock_init(&kvm->arch.float_int.lock); |
216 | INIT_LIST_HEAD(&kvm->arch.float_int.list); | |
217 | ||
b0c632db HC |
218 | debug_register_view(kvm->arch.dbf, &debug_sprintf_view); |
219 | VM_EVENT(kvm, 3, "%s", "vm created"); | |
220 | ||
e08b9637 CO |
221 | if (type & KVM_VM_S390_UCONTROL) { |
222 | kvm->arch.gmap = NULL; | |
223 | } else { | |
224 | kvm->arch.gmap = gmap_alloc(current->mm); | |
225 | if (!kvm->arch.gmap) | |
226 | goto out_nogmap; | |
227 | } | |
d89f5eff | 228 | return 0; |
598841ca CO |
229 | out_nogmap: |
230 | debug_unregister(kvm->arch.dbf); | |
b0c632db HC |
231 | out_nodbf: |
232 | free_page((unsigned long)(kvm->arch.sca)); | |
d89f5eff JK |
233 | out_err: |
234 | return rc; | |
b0c632db HC |
235 | } |
236 | ||
d329c035 CB |
237 | void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu) |
238 | { | |
239 | VCPU_EVENT(vcpu, 3, "%s", "free cpu"); | |
58f9460b CO |
240 | if (!kvm_is_ucontrol(vcpu->kvm)) { |
241 | clear_bit(63 - vcpu->vcpu_id, | |
242 | (unsigned long *) &vcpu->kvm->arch.sca->mcn); | |
243 | if (vcpu->kvm->arch.sca->cpu[vcpu->vcpu_id].sda == | |
244 | (__u64) vcpu->arch.sie_block) | |
245 | vcpu->kvm->arch.sca->cpu[vcpu->vcpu_id].sda = 0; | |
246 | } | |
abf4a71e | 247 | smp_mb(); |
27e0393f CO |
248 | |
249 | if (kvm_is_ucontrol(vcpu->kvm)) | |
250 | gmap_free(vcpu->arch.gmap); | |
251 | ||
d329c035 | 252 | free_page((unsigned long)(vcpu->arch.sie_block)); |
6692cef3 | 253 | kvm_vcpu_uninit(vcpu); |
d329c035 CB |
254 | kfree(vcpu); |
255 | } | |
256 | ||
257 | static void kvm_free_vcpus(struct kvm *kvm) | |
258 | { | |
259 | unsigned int i; | |
988a2cae | 260 | struct kvm_vcpu *vcpu; |
d329c035 | 261 | |
988a2cae GN |
262 | kvm_for_each_vcpu(i, vcpu, kvm) |
263 | kvm_arch_vcpu_destroy(vcpu); | |
264 | ||
265 | mutex_lock(&kvm->lock); | |
266 | for (i = 0; i < atomic_read(&kvm->online_vcpus); i++) | |
267 | kvm->vcpus[i] = NULL; | |
268 | ||
269 | atomic_set(&kvm->online_vcpus, 0); | |
270 | mutex_unlock(&kvm->lock); | |
d329c035 CB |
271 | } |
272 | ||
ad8ba2cd SY |
273 | void kvm_arch_sync_events(struct kvm *kvm) |
274 | { | |
275 | } | |
276 | ||
b0c632db HC |
277 | void kvm_arch_destroy_vm(struct kvm *kvm) |
278 | { | |
d329c035 | 279 | kvm_free_vcpus(kvm); |
b0c632db | 280 | free_page((unsigned long)(kvm->arch.sca)); |
d329c035 | 281 | debug_unregister(kvm->arch.dbf); |
27e0393f CO |
282 | if (!kvm_is_ucontrol(kvm)) |
283 | gmap_free(kvm->arch.gmap); | |
b0c632db HC |
284 | } |
285 | ||
286 | /* Section: vcpu related */ | |
287 | int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu) | |
288 | { | |
27e0393f CO |
289 | if (kvm_is_ucontrol(vcpu->kvm)) { |
290 | vcpu->arch.gmap = gmap_alloc(current->mm); | |
291 | if (!vcpu->arch.gmap) | |
292 | return -ENOMEM; | |
293 | return 0; | |
294 | } | |
295 | ||
598841ca | 296 | vcpu->arch.gmap = vcpu->kvm->arch.gmap; |
59674c1a CB |
297 | vcpu->run->kvm_valid_regs = KVM_SYNC_PREFIX | |
298 | KVM_SYNC_GPRS | | |
9eed0735 CB |
299 | KVM_SYNC_ACRS | |
300 | KVM_SYNC_CRS; | |
b0c632db HC |
301 | return 0; |
302 | } | |
303 | ||
304 | void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) | |
305 | { | |
6692cef3 | 306 | /* Nothing todo */ |
b0c632db HC |
307 | } |
308 | ||
309 | void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu) | |
310 | { | |
311 | save_fp_regs(&vcpu->arch.host_fpregs); | |
312 | save_access_regs(vcpu->arch.host_acrs); | |
313 | vcpu->arch.guest_fpregs.fpc &= FPC_VALID_MASK; | |
314 | restore_fp_regs(&vcpu->arch.guest_fpregs); | |
59674c1a | 315 | restore_access_regs(vcpu->run->s.regs.acrs); |
480e5926 | 316 | gmap_enable(vcpu->arch.gmap); |
9e6dabef | 317 | atomic_set_mask(CPUSTAT_RUNNING, &vcpu->arch.sie_block->cpuflags); |
b0c632db HC |
318 | } |
319 | ||
320 | void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu) | |
321 | { | |
9e6dabef | 322 | atomic_clear_mask(CPUSTAT_RUNNING, &vcpu->arch.sie_block->cpuflags); |
480e5926 | 323 | gmap_disable(vcpu->arch.gmap); |
b0c632db | 324 | save_fp_regs(&vcpu->arch.guest_fpregs); |
59674c1a | 325 | save_access_regs(vcpu->run->s.regs.acrs); |
b0c632db HC |
326 | restore_fp_regs(&vcpu->arch.host_fpregs); |
327 | restore_access_regs(vcpu->arch.host_acrs); | |
328 | } | |
329 | ||
330 | static void kvm_s390_vcpu_initial_reset(struct kvm_vcpu *vcpu) | |
331 | { | |
332 | /* this equals initial cpu reset in pop, but we don't switch to ESA */ | |
333 | vcpu->arch.sie_block->gpsw.mask = 0UL; | |
334 | vcpu->arch.sie_block->gpsw.addr = 0UL; | |
8d26cf7b | 335 | kvm_s390_set_prefix(vcpu, 0); |
b0c632db HC |
336 | vcpu->arch.sie_block->cputm = 0UL; |
337 | vcpu->arch.sie_block->ckc = 0UL; | |
338 | vcpu->arch.sie_block->todpr = 0; | |
339 | memset(vcpu->arch.sie_block->gcr, 0, 16 * sizeof(__u64)); | |
340 | vcpu->arch.sie_block->gcr[0] = 0xE0UL; | |
341 | vcpu->arch.sie_block->gcr[14] = 0xC2000000UL; | |
342 | vcpu->arch.guest_fpregs.fpc = 0; | |
343 | asm volatile("lfpc %0" : : "Q" (vcpu->arch.guest_fpregs.fpc)); | |
344 | vcpu->arch.sie_block->gbea = 1; | |
345 | } | |
346 | ||
347 | int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu) | |
348 | { | |
9e6dabef CH |
349 | atomic_set(&vcpu->arch.sie_block->cpuflags, CPUSTAT_ZARCH | |
350 | CPUSTAT_SM | | |
351 | CPUSTAT_STOPPED); | |
fc34531d | 352 | vcpu->arch.sie_block->ecb = 6; |
b0c632db | 353 | vcpu->arch.sie_block->eca = 0xC1002001U; |
ef50f7ac | 354 | vcpu->arch.sie_block->fac = (int) (long) facilities; |
ca872302 CB |
355 | hrtimer_init(&vcpu->arch.ckc_timer, CLOCK_REALTIME, HRTIMER_MODE_ABS); |
356 | tasklet_init(&vcpu->arch.tasklet, kvm_s390_tasklet, | |
357 | (unsigned long) vcpu); | |
358 | vcpu->arch.ckc_timer.function = kvm_s390_idle_wakeup; | |
453423dc | 359 | get_cpu_id(&vcpu->arch.cpu_id); |
92e6ecf3 | 360 | vcpu->arch.cpu_id.version = 0xff; |
b0c632db HC |
361 | return 0; |
362 | } | |
363 | ||
364 | struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, | |
365 | unsigned int id) | |
366 | { | |
4d47555a CO |
367 | struct kvm_vcpu *vcpu; |
368 | int rc = -EINVAL; | |
369 | ||
370 | if (id >= KVM_MAX_VCPUS) | |
371 | goto out; | |
372 | ||
373 | rc = -ENOMEM; | |
b0c632db | 374 | |
4d47555a | 375 | vcpu = kzalloc(sizeof(struct kvm_vcpu), GFP_KERNEL); |
b0c632db | 376 | if (!vcpu) |
4d47555a | 377 | goto out; |
b0c632db | 378 | |
180c12fb CB |
379 | vcpu->arch.sie_block = (struct kvm_s390_sie_block *) |
380 | get_zeroed_page(GFP_KERNEL); | |
b0c632db HC |
381 | |
382 | if (!vcpu->arch.sie_block) | |
383 | goto out_free_cpu; | |
384 | ||
385 | vcpu->arch.sie_block->icpua = id; | |
58f9460b CO |
386 | if (!kvm_is_ucontrol(kvm)) { |
387 | if (!kvm->arch.sca) { | |
388 | WARN_ON_ONCE(1); | |
389 | goto out_free_cpu; | |
390 | } | |
391 | if (!kvm->arch.sca->cpu[id].sda) | |
392 | kvm->arch.sca->cpu[id].sda = | |
393 | (__u64) vcpu->arch.sie_block; | |
394 | vcpu->arch.sie_block->scaoh = | |
395 | (__u32)(((__u64)kvm->arch.sca) >> 32); | |
396 | vcpu->arch.sie_block->scaol = (__u32)(__u64)kvm->arch.sca; | |
397 | set_bit(63 - id, (unsigned long *) &kvm->arch.sca->mcn); | |
398 | } | |
b0c632db | 399 | |
ba5c1e9b CO |
400 | spin_lock_init(&vcpu->arch.local_int.lock); |
401 | INIT_LIST_HEAD(&vcpu->arch.local_int.list); | |
402 | vcpu->arch.local_int.float_int = &kvm->arch.float_int; | |
b037a4f3 | 403 | spin_lock(&kvm->arch.float_int.lock); |
ba5c1e9b CO |
404 | kvm->arch.float_int.local_int[id] = &vcpu->arch.local_int; |
405 | init_waitqueue_head(&vcpu->arch.local_int.wq); | |
5288fbf0 | 406 | vcpu->arch.local_int.cpuflags = &vcpu->arch.sie_block->cpuflags; |
b037a4f3 | 407 | spin_unlock(&kvm->arch.float_int.lock); |
ba5c1e9b | 408 | |
b0c632db HC |
409 | rc = kvm_vcpu_init(vcpu, kvm, id); |
410 | if (rc) | |
7b06bf2f | 411 | goto out_free_sie_block; |
b0c632db HC |
412 | VM_EVENT(kvm, 3, "create cpu %d at %p, sie block at %p", id, vcpu, |
413 | vcpu->arch.sie_block); | |
414 | ||
b0c632db | 415 | return vcpu; |
7b06bf2f WY |
416 | out_free_sie_block: |
417 | free_page((unsigned long)(vcpu->arch.sie_block)); | |
b0c632db HC |
418 | out_free_cpu: |
419 | kfree(vcpu); | |
4d47555a | 420 | out: |
b0c632db HC |
421 | return ERR_PTR(rc); |
422 | } | |
423 | ||
b0c632db HC |
424 | int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu) |
425 | { | |
426 | /* kvm common code refers to this, but never calls it */ | |
427 | BUG(); | |
428 | return 0; | |
429 | } | |
430 | ||
b6d33834 CD |
431 | int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu) |
432 | { | |
433 | /* kvm common code refers to this, but never calls it */ | |
434 | BUG(); | |
435 | return 0; | |
436 | } | |
437 | ||
438 | ||
b0c632db HC |
439 | static int kvm_arch_vcpu_ioctl_initial_reset(struct kvm_vcpu *vcpu) |
440 | { | |
b0c632db | 441 | kvm_s390_vcpu_initial_reset(vcpu); |
b0c632db HC |
442 | return 0; |
443 | } | |
444 | ||
445 | int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) | |
446 | { | |
5a32c1af | 447 | memcpy(&vcpu->run->s.regs.gprs, ®s->gprs, sizeof(regs->gprs)); |
b0c632db HC |
448 | return 0; |
449 | } | |
450 | ||
451 | int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) | |
452 | { | |
5a32c1af | 453 | memcpy(®s->gprs, &vcpu->run->s.regs.gprs, sizeof(regs->gprs)); |
b0c632db HC |
454 | return 0; |
455 | } | |
456 | ||
457 | int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, | |
458 | struct kvm_sregs *sregs) | |
459 | { | |
59674c1a | 460 | memcpy(&vcpu->run->s.regs.acrs, &sregs->acrs, sizeof(sregs->acrs)); |
b0c632db | 461 | memcpy(&vcpu->arch.sie_block->gcr, &sregs->crs, sizeof(sregs->crs)); |
59674c1a | 462 | restore_access_regs(vcpu->run->s.regs.acrs); |
b0c632db HC |
463 | return 0; |
464 | } | |
465 | ||
466 | int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, | |
467 | struct kvm_sregs *sregs) | |
468 | { | |
59674c1a | 469 | memcpy(&sregs->acrs, &vcpu->run->s.regs.acrs, sizeof(sregs->acrs)); |
b0c632db | 470 | memcpy(&sregs->crs, &vcpu->arch.sie_block->gcr, sizeof(sregs->crs)); |
b0c632db HC |
471 | return 0; |
472 | } | |
473 | ||
474 | int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu) | |
475 | { | |
b0c632db | 476 | memcpy(&vcpu->arch.guest_fpregs.fprs, &fpu->fprs, sizeof(fpu->fprs)); |
85175587 | 477 | vcpu->arch.guest_fpregs.fpc = fpu->fpc & FPC_VALID_MASK; |
7eef87dc | 478 | restore_fp_regs(&vcpu->arch.guest_fpregs); |
b0c632db HC |
479 | return 0; |
480 | } | |
481 | ||
482 | int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu) | |
483 | { | |
b0c632db HC |
484 | memcpy(&fpu->fprs, &vcpu->arch.guest_fpregs.fprs, sizeof(fpu->fprs)); |
485 | fpu->fpc = vcpu->arch.guest_fpregs.fpc; | |
b0c632db HC |
486 | return 0; |
487 | } | |
488 | ||
489 | static int kvm_arch_vcpu_ioctl_set_initial_psw(struct kvm_vcpu *vcpu, psw_t psw) | |
490 | { | |
491 | int rc = 0; | |
492 | ||
9e6dabef | 493 | if (!(atomic_read(&vcpu->arch.sie_block->cpuflags) & CPUSTAT_STOPPED)) |
b0c632db | 494 | rc = -EBUSY; |
d7b0b5eb CO |
495 | else { |
496 | vcpu->run->psw_mask = psw.mask; | |
497 | vcpu->run->psw_addr = psw.addr; | |
498 | } | |
b0c632db HC |
499 | return rc; |
500 | } | |
501 | ||
502 | int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu, | |
503 | struct kvm_translation *tr) | |
504 | { | |
505 | return -EINVAL; /* not implemented yet */ | |
506 | } | |
507 | ||
d0bfb940 JK |
508 | int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, |
509 | struct kvm_guest_debug *dbg) | |
b0c632db HC |
510 | { |
511 | return -EINVAL; /* not implemented yet */ | |
512 | } | |
513 | ||
62d9f0db MT |
514 | int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, |
515 | struct kvm_mp_state *mp_state) | |
516 | { | |
517 | return -EINVAL; /* not implemented yet */ | |
518 | } | |
519 | ||
520 | int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, | |
521 | struct kvm_mp_state *mp_state) | |
522 | { | |
523 | return -EINVAL; /* not implemented yet */ | |
524 | } | |
525 | ||
e168bf8d | 526 | static int __vcpu_run(struct kvm_vcpu *vcpu) |
b0c632db | 527 | { |
e168bf8d CO |
528 | int rc; |
529 | ||
5a32c1af | 530 | memcpy(&vcpu->arch.sie_block->gg14, &vcpu->run->s.regs.gprs[14], 16); |
b0c632db HC |
531 | |
532 | if (need_resched()) | |
533 | schedule(); | |
534 | ||
71cde587 CB |
535 | if (test_thread_flag(TIF_MCCK_PENDING)) |
536 | s390_handle_mcck(); | |
537 | ||
d6b6d166 CO |
538 | if (!kvm_is_ucontrol(vcpu->kvm)) |
539 | kvm_s390_deliver_pending_interrupts(vcpu); | |
0ff31867 | 540 | |
b0c632db HC |
541 | vcpu->arch.sie_block->icptcode = 0; |
542 | local_irq_disable(); | |
543 | kvm_guest_enter(); | |
544 | local_irq_enable(); | |
545 | VCPU_EVENT(vcpu, 6, "entering sie flags %x", | |
546 | atomic_read(&vcpu->arch.sie_block->cpuflags)); | |
5a32c1af | 547 | rc = sie64a(vcpu->arch.sie_block, vcpu->run->s.regs.gprs); |
e168bf8d CO |
548 | if (rc) { |
549 | if (kvm_is_ucontrol(vcpu->kvm)) { | |
550 | rc = SIE_INTERCEPT_UCONTROL; | |
551 | } else { | |
552 | VCPU_EVENT(vcpu, 3, "%s", "fault in sie instruction"); | |
553 | kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING); | |
554 | rc = 0; | |
555 | } | |
1f0d0f09 | 556 | } |
b0c632db HC |
557 | VCPU_EVENT(vcpu, 6, "exit sie icptcode %d", |
558 | vcpu->arch.sie_block->icptcode); | |
559 | local_irq_disable(); | |
560 | kvm_guest_exit(); | |
561 | local_irq_enable(); | |
562 | ||
5a32c1af | 563 | memcpy(&vcpu->run->s.regs.gprs[14], &vcpu->arch.sie_block->gg14, 16); |
e168bf8d | 564 | return rc; |
b0c632db HC |
565 | } |
566 | ||
567 | int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) | |
568 | { | |
8f2abe6a | 569 | int rc; |
b0c632db HC |
570 | sigset_t sigsaved; |
571 | ||
9ace903d | 572 | rerun_vcpu: |
b0c632db HC |
573 | if (vcpu->sigset_active) |
574 | sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved); | |
575 | ||
9e6dabef | 576 | atomic_clear_mask(CPUSTAT_STOPPED, &vcpu->arch.sie_block->cpuflags); |
b0c632db | 577 | |
ba5c1e9b CO |
578 | BUG_ON(vcpu->kvm->arch.float_int.local_int[vcpu->vcpu_id] == NULL); |
579 | ||
8f2abe6a CB |
580 | switch (kvm_run->exit_reason) { |
581 | case KVM_EXIT_S390_SIEIC: | |
8f2abe6a | 582 | case KVM_EXIT_UNKNOWN: |
9ace903d | 583 | case KVM_EXIT_INTR: |
8f2abe6a | 584 | case KVM_EXIT_S390_RESET: |
e168bf8d | 585 | case KVM_EXIT_S390_UCONTROL: |
8f2abe6a CB |
586 | break; |
587 | default: | |
588 | BUG(); | |
589 | } | |
590 | ||
d7b0b5eb CO |
591 | vcpu->arch.sie_block->gpsw.mask = kvm_run->psw_mask; |
592 | vcpu->arch.sie_block->gpsw.addr = kvm_run->psw_addr; | |
60b413c9 CB |
593 | if (kvm_run->kvm_dirty_regs & KVM_SYNC_PREFIX) { |
594 | kvm_run->kvm_dirty_regs &= ~KVM_SYNC_PREFIX; | |
595 | kvm_s390_set_prefix(vcpu, kvm_run->s.regs.prefix); | |
596 | } | |
9eed0735 CB |
597 | if (kvm_run->kvm_dirty_regs & KVM_SYNC_CRS) { |
598 | kvm_run->kvm_dirty_regs &= ~KVM_SYNC_CRS; | |
599 | memcpy(&vcpu->arch.sie_block->gcr, &kvm_run->s.regs.crs, 128); | |
600 | kvm_s390_set_prefix(vcpu, kvm_run->s.regs.prefix); | |
601 | } | |
d7b0b5eb | 602 | |
dab4079d | 603 | might_fault(); |
8f2abe6a CB |
604 | |
605 | do { | |
e168bf8d CO |
606 | rc = __vcpu_run(vcpu); |
607 | if (rc) | |
608 | break; | |
c0d744a9 CO |
609 | if (kvm_is_ucontrol(vcpu->kvm)) |
610 | rc = -EOPNOTSUPP; | |
611 | else | |
612 | rc = kvm_handle_sie_intercept(vcpu); | |
8f2abe6a CB |
613 | } while (!signal_pending(current) && !rc); |
614 | ||
9ace903d CE |
615 | if (rc == SIE_INTERCEPT_RERUNVCPU) |
616 | goto rerun_vcpu; | |
617 | ||
b1d16c49 CE |
618 | if (signal_pending(current) && !rc) { |
619 | kvm_run->exit_reason = KVM_EXIT_INTR; | |
8f2abe6a | 620 | rc = -EINTR; |
b1d16c49 | 621 | } |
8f2abe6a | 622 | |
e168bf8d CO |
623 | #ifdef CONFIG_KVM_S390_UCONTROL |
624 | if (rc == SIE_INTERCEPT_UCONTROL) { | |
625 | kvm_run->exit_reason = KVM_EXIT_S390_UCONTROL; | |
626 | kvm_run->s390_ucontrol.trans_exc_code = | |
627 | current->thread.gmap_addr; | |
628 | kvm_run->s390_ucontrol.pgm_code = 0x10; | |
629 | rc = 0; | |
630 | } | |
631 | #endif | |
632 | ||
b8e660b8 | 633 | if (rc == -EOPNOTSUPP) { |
8f2abe6a CB |
634 | /* intercept cannot be handled in-kernel, prepare kvm-run */ |
635 | kvm_run->exit_reason = KVM_EXIT_S390_SIEIC; | |
636 | kvm_run->s390_sieic.icptcode = vcpu->arch.sie_block->icptcode; | |
8f2abe6a CB |
637 | kvm_run->s390_sieic.ipa = vcpu->arch.sie_block->ipa; |
638 | kvm_run->s390_sieic.ipb = vcpu->arch.sie_block->ipb; | |
639 | rc = 0; | |
640 | } | |
641 | ||
642 | if (rc == -EREMOTE) { | |
643 | /* intercept was handled, but userspace support is needed | |
644 | * kvm_run has been prepared by the handler */ | |
645 | rc = 0; | |
646 | } | |
b0c632db | 647 | |
d7b0b5eb CO |
648 | kvm_run->psw_mask = vcpu->arch.sie_block->gpsw.mask; |
649 | kvm_run->psw_addr = vcpu->arch.sie_block->gpsw.addr; | |
60b413c9 | 650 | kvm_run->s.regs.prefix = vcpu->arch.sie_block->prefix; |
9eed0735 | 651 | memcpy(&kvm_run->s.regs.crs, &vcpu->arch.sie_block->gcr, 128); |
d7b0b5eb | 652 | |
b0c632db HC |
653 | if (vcpu->sigset_active) |
654 | sigprocmask(SIG_SETMASK, &sigsaved, NULL); | |
655 | ||
b0c632db | 656 | vcpu->stat.exit_userspace++; |
7e8e6ab4 | 657 | return rc; |
b0c632db HC |
658 | } |
659 | ||
092670cd | 660 | static int __guestcopy(struct kvm_vcpu *vcpu, u64 guestdest, void *from, |
b0c632db HC |
661 | unsigned long n, int prefix) |
662 | { | |
663 | if (prefix) | |
664 | return copy_to_guest(vcpu, guestdest, from, n); | |
665 | else | |
666 | return copy_to_guest_absolute(vcpu, guestdest, from, n); | |
667 | } | |
668 | ||
669 | /* | |
670 | * store status at address | |
671 | * we use have two special cases: | |
672 | * KVM_S390_STORE_STATUS_NOADDR: -> 0x1200 on 64 bit | |
673 | * KVM_S390_STORE_STATUS_PREFIXED: -> prefix | |
674 | */ | |
971eb77f | 675 | int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr) |
b0c632db | 676 | { |
092670cd | 677 | unsigned char archmode = 1; |
b0c632db HC |
678 | int prefix; |
679 | ||
680 | if (addr == KVM_S390_STORE_STATUS_NOADDR) { | |
681 | if (copy_to_guest_absolute(vcpu, 163ul, &archmode, 1)) | |
682 | return -EFAULT; | |
683 | addr = SAVE_AREA_BASE; | |
684 | prefix = 0; | |
685 | } else if (addr == KVM_S390_STORE_STATUS_PREFIXED) { | |
686 | if (copy_to_guest(vcpu, 163ul, &archmode, 1)) | |
687 | return -EFAULT; | |
688 | addr = SAVE_AREA_BASE; | |
689 | prefix = 1; | |
690 | } else | |
691 | prefix = 0; | |
692 | ||
f64ca217 | 693 | if (__guestcopy(vcpu, addr + offsetof(struct save_area, fp_regs), |
b0c632db HC |
694 | vcpu->arch.guest_fpregs.fprs, 128, prefix)) |
695 | return -EFAULT; | |
696 | ||
f64ca217 | 697 | if (__guestcopy(vcpu, addr + offsetof(struct save_area, gp_regs), |
5a32c1af | 698 | vcpu->run->s.regs.gprs, 128, prefix)) |
b0c632db HC |
699 | return -EFAULT; |
700 | ||
f64ca217 | 701 | if (__guestcopy(vcpu, addr + offsetof(struct save_area, psw), |
b0c632db HC |
702 | &vcpu->arch.sie_block->gpsw, 16, prefix)) |
703 | return -EFAULT; | |
704 | ||
f64ca217 | 705 | if (__guestcopy(vcpu, addr + offsetof(struct save_area, pref_reg), |
b0c632db HC |
706 | &vcpu->arch.sie_block->prefix, 4, prefix)) |
707 | return -EFAULT; | |
708 | ||
709 | if (__guestcopy(vcpu, | |
f64ca217 | 710 | addr + offsetof(struct save_area, fp_ctrl_reg), |
b0c632db HC |
711 | &vcpu->arch.guest_fpregs.fpc, 4, prefix)) |
712 | return -EFAULT; | |
713 | ||
f64ca217 | 714 | if (__guestcopy(vcpu, addr + offsetof(struct save_area, tod_reg), |
b0c632db HC |
715 | &vcpu->arch.sie_block->todpr, 4, prefix)) |
716 | return -EFAULT; | |
717 | ||
f64ca217 | 718 | if (__guestcopy(vcpu, addr + offsetof(struct save_area, timer), |
b0c632db HC |
719 | &vcpu->arch.sie_block->cputm, 8, prefix)) |
720 | return -EFAULT; | |
721 | ||
f64ca217 | 722 | if (__guestcopy(vcpu, addr + offsetof(struct save_area, clk_cmp), |
b0c632db HC |
723 | &vcpu->arch.sie_block->ckc, 8, prefix)) |
724 | return -EFAULT; | |
725 | ||
f64ca217 | 726 | if (__guestcopy(vcpu, addr + offsetof(struct save_area, acc_regs), |
59674c1a | 727 | &vcpu->run->s.regs.acrs, 64, prefix)) |
b0c632db HC |
728 | return -EFAULT; |
729 | ||
730 | if (__guestcopy(vcpu, | |
f64ca217 | 731 | addr + offsetof(struct save_area, ctrl_regs), |
b0c632db HC |
732 | &vcpu->arch.sie_block->gcr, 128, prefix)) |
733 | return -EFAULT; | |
734 | return 0; | |
735 | } | |
736 | ||
b0c632db HC |
737 | long kvm_arch_vcpu_ioctl(struct file *filp, |
738 | unsigned int ioctl, unsigned long arg) | |
739 | { | |
740 | struct kvm_vcpu *vcpu = filp->private_data; | |
741 | void __user *argp = (void __user *)arg; | |
bc923cc9 | 742 | long r; |
b0c632db | 743 | |
93736624 AK |
744 | switch (ioctl) { |
745 | case KVM_S390_INTERRUPT: { | |
ba5c1e9b CO |
746 | struct kvm_s390_interrupt s390int; |
747 | ||
93736624 | 748 | r = -EFAULT; |
ba5c1e9b | 749 | if (copy_from_user(&s390int, argp, sizeof(s390int))) |
93736624 AK |
750 | break; |
751 | r = kvm_s390_inject_vcpu(vcpu, &s390int); | |
752 | break; | |
ba5c1e9b | 753 | } |
b0c632db | 754 | case KVM_S390_STORE_STATUS: |
bc923cc9 AK |
755 | r = kvm_s390_vcpu_store_status(vcpu, arg); |
756 | break; | |
b0c632db HC |
757 | case KVM_S390_SET_INITIAL_PSW: { |
758 | psw_t psw; | |
759 | ||
bc923cc9 | 760 | r = -EFAULT; |
b0c632db | 761 | if (copy_from_user(&psw, argp, sizeof(psw))) |
bc923cc9 AK |
762 | break; |
763 | r = kvm_arch_vcpu_ioctl_set_initial_psw(vcpu, psw); | |
764 | break; | |
b0c632db HC |
765 | } |
766 | case KVM_S390_INITIAL_RESET: | |
bc923cc9 AK |
767 | r = kvm_arch_vcpu_ioctl_initial_reset(vcpu); |
768 | break; | |
27e0393f CO |
769 | #ifdef CONFIG_KVM_S390_UCONTROL |
770 | case KVM_S390_UCAS_MAP: { | |
771 | struct kvm_s390_ucas_mapping ucasmap; | |
772 | ||
773 | if (copy_from_user(&ucasmap, argp, sizeof(ucasmap))) { | |
774 | r = -EFAULT; | |
775 | break; | |
776 | } | |
777 | ||
778 | if (!kvm_is_ucontrol(vcpu->kvm)) { | |
779 | r = -EINVAL; | |
780 | break; | |
781 | } | |
782 | ||
783 | r = gmap_map_segment(vcpu->arch.gmap, ucasmap.user_addr, | |
784 | ucasmap.vcpu_addr, ucasmap.length); | |
785 | break; | |
786 | } | |
787 | case KVM_S390_UCAS_UNMAP: { | |
788 | struct kvm_s390_ucas_mapping ucasmap; | |
789 | ||
790 | if (copy_from_user(&ucasmap, argp, sizeof(ucasmap))) { | |
791 | r = -EFAULT; | |
792 | break; | |
793 | } | |
794 | ||
795 | if (!kvm_is_ucontrol(vcpu->kvm)) { | |
796 | r = -EINVAL; | |
797 | break; | |
798 | } | |
799 | ||
800 | r = gmap_unmap_segment(vcpu->arch.gmap, ucasmap.vcpu_addr, | |
801 | ucasmap.length); | |
802 | break; | |
803 | } | |
804 | #endif | |
ccc7910f CO |
805 | case KVM_S390_VCPU_FAULT: { |
806 | r = gmap_fault(arg, vcpu->arch.gmap); | |
807 | if (!IS_ERR_VALUE(r)) | |
808 | r = 0; | |
809 | break; | |
810 | } | |
b0c632db | 811 | default: |
3e6afcf1 | 812 | r = -ENOTTY; |
b0c632db | 813 | } |
bc923cc9 | 814 | return r; |
b0c632db HC |
815 | } |
816 | ||
5b1c1493 CO |
817 | int kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf) |
818 | { | |
819 | #ifdef CONFIG_KVM_S390_UCONTROL | |
820 | if ((vmf->pgoff == KVM_S390_SIE_PAGE_OFFSET) | |
821 | && (kvm_is_ucontrol(vcpu->kvm))) { | |
822 | vmf->page = virt_to_page(vcpu->arch.sie_block); | |
823 | get_page(vmf->page); | |
824 | return 0; | |
825 | } | |
826 | #endif | |
827 | return VM_FAULT_SIGBUS; | |
828 | } | |
829 | ||
db3fe4eb TY |
830 | void kvm_arch_free_memslot(struct kvm_memory_slot *free, |
831 | struct kvm_memory_slot *dont) | |
832 | { | |
833 | } | |
834 | ||
835 | int kvm_arch_create_memslot(struct kvm_memory_slot *slot, unsigned long npages) | |
836 | { | |
837 | return 0; | |
838 | } | |
839 | ||
b0c632db | 840 | /* Section: memory related */ |
f7784b8e MT |
841 | int kvm_arch_prepare_memory_region(struct kvm *kvm, |
842 | struct kvm_memory_slot *memslot, | |
843 | struct kvm_memory_slot old, | |
844 | struct kvm_userspace_memory_region *mem, | |
845 | int user_alloc) | |
b0c632db HC |
846 | { |
847 | /* A few sanity checks. We can have exactly one memory slot which has | |
848 | to start at guest virtual zero and which has to be located at a | |
849 | page boundary in userland and which has to end at a page boundary. | |
850 | The memory in userland is ok to be fragmented into various different | |
851 | vmas. It is okay to mmap() and munmap() stuff in this slot after | |
852 | doing this call at any time */ | |
853 | ||
628eb9b8 | 854 | if (mem->slot) |
b0c632db HC |
855 | return -EINVAL; |
856 | ||
857 | if (mem->guest_phys_addr) | |
858 | return -EINVAL; | |
859 | ||
598841ca | 860 | if (mem->userspace_addr & 0xffffful) |
b0c632db HC |
861 | return -EINVAL; |
862 | ||
598841ca | 863 | if (mem->memory_size & 0xffffful) |
b0c632db HC |
864 | return -EINVAL; |
865 | ||
2668dab7 CO |
866 | if (!user_alloc) |
867 | return -EINVAL; | |
868 | ||
f7784b8e MT |
869 | return 0; |
870 | } | |
871 | ||
872 | void kvm_arch_commit_memory_region(struct kvm *kvm, | |
873 | struct kvm_userspace_memory_region *mem, | |
874 | struct kvm_memory_slot old, | |
875 | int user_alloc) | |
876 | { | |
f7850c92 | 877 | int rc; |
f7784b8e | 878 | |
598841ca CO |
879 | |
880 | rc = gmap_map_segment(kvm->arch.gmap, mem->userspace_addr, | |
881 | mem->guest_phys_addr, mem->memory_size); | |
882 | if (rc) | |
f7850c92 | 883 | printk(KERN_WARNING "kvm-s390: failed to commit memory region\n"); |
598841ca | 884 | return; |
b0c632db HC |
885 | } |
886 | ||
34d4cb8f MT |
887 | void kvm_arch_flush_shadow(struct kvm *kvm) |
888 | { | |
889 | } | |
890 | ||
b0c632db HC |
891 | static int __init kvm_s390_init(void) |
892 | { | |
ef50f7ac | 893 | int ret; |
0ee75bea | 894 | ret = kvm_init(NULL, sizeof(struct kvm_vcpu), 0, THIS_MODULE); |
ef50f7ac CB |
895 | if (ret) |
896 | return ret; | |
897 | ||
898 | /* | |
899 | * guests can ask for up to 255+1 double words, we need a full page | |
25985edc | 900 | * to hold the maximum amount of facilities. On the other hand, we |
ef50f7ac CB |
901 | * only set facilities that are known to work in KVM. |
902 | */ | |
c2f0e8c8 | 903 | facilities = (unsigned long long *) get_zeroed_page(GFP_KERNEL|GFP_DMA); |
ef50f7ac CB |
904 | if (!facilities) { |
905 | kvm_exit(); | |
906 | return -ENOMEM; | |
907 | } | |
14375bc4 | 908 | memcpy(facilities, S390_lowcore.stfle_fac_list, 16); |
6d00d00b | 909 | facilities[0] &= 0xff00fff3f47c0000ULL; |
9950f8be | 910 | facilities[1] &= 0x201c000000000000ULL; |
ef50f7ac | 911 | return 0; |
b0c632db HC |
912 | } |
913 | ||
914 | static void __exit kvm_s390_exit(void) | |
915 | { | |
ef50f7ac | 916 | free_page((unsigned long) facilities); |
b0c632db HC |
917 | kvm_exit(); |
918 | } | |
919 | ||
920 | module_init(kvm_s390_init); | |
921 | module_exit(kvm_s390_exit); |