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Commit | Line | Data |
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bbf45ba5 HB |
1 | /* |
2 | * This program is free software; you can redistribute it and/or modify | |
3 | * it under the terms of the GNU General Public License, version 2, as | |
4 | * published by the Free Software Foundation. | |
5 | * | |
6 | * This program is distributed in the hope that it will be useful, | |
7 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
8 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
9 | * GNU General Public License for more details. | |
10 | * | |
11 | * You should have received a copy of the GNU General Public License | |
12 | * along with this program; if not, write to the Free Software | |
13 | * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. | |
14 | * | |
15 | * Copyright IBM Corp. 2007 | |
16 | * | |
17 | * Authors: Hollis Blanchard <hollisb@us.ibm.com> | |
18 | * Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com> | |
19 | */ | |
20 | ||
21 | #include <linux/errno.h> | |
22 | #include <linux/err.h> | |
23 | #include <linux/kvm_host.h> | |
bbf45ba5 | 24 | #include <linux/vmalloc.h> |
544c6761 | 25 | #include <linux/hrtimer.h> |
bbf45ba5 | 26 | #include <linux/fs.h> |
5a0e3ad6 | 27 | #include <linux/slab.h> |
eb1e4f43 | 28 | #include <linux/file.h> |
cbbc58d4 | 29 | #include <linux/module.h> |
bbf45ba5 HB |
30 | #include <asm/cputable.h> |
31 | #include <asm/uaccess.h> | |
32 | #include <asm/kvm_ppc.h> | |
83aae4a8 | 33 | #include <asm/tlbflush.h> |
371fefd6 | 34 | #include <asm/cputhreads.h> |
bd2be683 | 35 | #include <asm/irqflags.h> |
58ded420 | 36 | #include <asm/iommu.h> |
73e75b41 | 37 | #include "timing.h" |
5efdb4be | 38 | #include "irq.h" |
fad7b9b5 | 39 | #include "../mm/mmu_decl.h" |
bbf45ba5 | 40 | |
46f43c6e MT |
41 | #define CREATE_TRACE_POINTS |
42 | #include "trace.h" | |
43 | ||
cbbc58d4 AK |
44 | struct kvmppc_ops *kvmppc_hv_ops; |
45 | EXPORT_SYMBOL_GPL(kvmppc_hv_ops); | |
46 | struct kvmppc_ops *kvmppc_pr_ops; | |
47 | EXPORT_SYMBOL_GPL(kvmppc_pr_ops); | |
48 | ||
3a167bea | 49 | |
bbf45ba5 HB |
50 | int kvm_arch_vcpu_runnable(struct kvm_vcpu *v) |
51 | { | |
9202e076 | 52 | return !!(v->arch.pending_exceptions) || |
dfd4d47e | 53 | v->requests; |
bbf45ba5 HB |
54 | } |
55 | ||
b6d33834 CD |
56 | int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu) |
57 | { | |
58 | return 1; | |
59 | } | |
60 | ||
03d25c5b AG |
61 | /* |
62 | * Common checks before entering the guest world. Call with interrupts | |
63 | * disabled. | |
64 | * | |
7ee78855 AG |
65 | * returns: |
66 | * | |
67 | * == 1 if we're ready to go into guest state | |
68 | * <= 0 if we need to go back to the host with return value | |
03d25c5b AG |
69 | */ |
70 | int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu) | |
71 | { | |
6c85f52b SW |
72 | int r; |
73 | ||
74 | WARN_ON(irqs_disabled()); | |
75 | hard_irq_disable(); | |
03d25c5b | 76 | |
03d25c5b AG |
77 | while (true) { |
78 | if (need_resched()) { | |
79 | local_irq_enable(); | |
80 | cond_resched(); | |
6c85f52b | 81 | hard_irq_disable(); |
03d25c5b AG |
82 | continue; |
83 | } | |
84 | ||
85 | if (signal_pending(current)) { | |
7ee78855 AG |
86 | kvmppc_account_exit(vcpu, SIGNAL_EXITS); |
87 | vcpu->run->exit_reason = KVM_EXIT_INTR; | |
88 | r = -EINTR; | |
03d25c5b AG |
89 | break; |
90 | } | |
91 | ||
5bd1cf11 SW |
92 | vcpu->mode = IN_GUEST_MODE; |
93 | ||
94 | /* | |
95 | * Reading vcpu->requests must happen after setting vcpu->mode, | |
96 | * so we don't miss a request because the requester sees | |
97 | * OUTSIDE_GUEST_MODE and assumes we'll be checking requests | |
98 | * before next entering the guest (and thus doesn't IPI). | |
489153c7 LT |
99 | * This also orders the write to mode from any reads |
100 | * to the page tables done while the VCPU is running. | |
101 | * Please see the comment in kvm_flush_remote_tlbs. | |
5bd1cf11 | 102 | */ |
03d25c5b | 103 | smp_mb(); |
5bd1cf11 | 104 | |
03d25c5b AG |
105 | if (vcpu->requests) { |
106 | /* Make sure we process requests preemptable */ | |
107 | local_irq_enable(); | |
108 | trace_kvm_check_requests(vcpu); | |
7c973a2e | 109 | r = kvmppc_core_check_requests(vcpu); |
6c85f52b | 110 | hard_irq_disable(); |
7c973a2e AG |
111 | if (r > 0) |
112 | continue; | |
113 | break; | |
03d25c5b AG |
114 | } |
115 | ||
116 | if (kvmppc_core_prepare_to_enter(vcpu)) { | |
117 | /* interrupts got enabled in between, so we | |
118 | are back at square 1 */ | |
119 | continue; | |
120 | } | |
121 | ||
6edaa530 | 122 | guest_enter_irqoff(); |
6c85f52b | 123 | return 1; |
03d25c5b AG |
124 | } |
125 | ||
6c85f52b SW |
126 | /* return to host */ |
127 | local_irq_enable(); | |
03d25c5b AG |
128 | return r; |
129 | } | |
2ba9f0d8 | 130 | EXPORT_SYMBOL_GPL(kvmppc_prepare_to_enter); |
03d25c5b | 131 | |
5deb8e7a AG |
132 | #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE) |
133 | static void kvmppc_swab_shared(struct kvm_vcpu *vcpu) | |
134 | { | |
135 | struct kvm_vcpu_arch_shared *shared = vcpu->arch.shared; | |
136 | int i; | |
137 | ||
138 | shared->sprg0 = swab64(shared->sprg0); | |
139 | shared->sprg1 = swab64(shared->sprg1); | |
140 | shared->sprg2 = swab64(shared->sprg2); | |
141 | shared->sprg3 = swab64(shared->sprg3); | |
142 | shared->srr0 = swab64(shared->srr0); | |
143 | shared->srr1 = swab64(shared->srr1); | |
144 | shared->dar = swab64(shared->dar); | |
145 | shared->msr = swab64(shared->msr); | |
146 | shared->dsisr = swab32(shared->dsisr); | |
147 | shared->int_pending = swab32(shared->int_pending); | |
148 | for (i = 0; i < ARRAY_SIZE(shared->sr); i++) | |
149 | shared->sr[i] = swab32(shared->sr[i]); | |
150 | } | |
151 | #endif | |
152 | ||
2a342ed5 AG |
153 | int kvmppc_kvm_pv(struct kvm_vcpu *vcpu) |
154 | { | |
155 | int nr = kvmppc_get_gpr(vcpu, 11); | |
156 | int r; | |
157 | unsigned long __maybe_unused param1 = kvmppc_get_gpr(vcpu, 3); | |
158 | unsigned long __maybe_unused param2 = kvmppc_get_gpr(vcpu, 4); | |
159 | unsigned long __maybe_unused param3 = kvmppc_get_gpr(vcpu, 5); | |
160 | unsigned long __maybe_unused param4 = kvmppc_get_gpr(vcpu, 6); | |
161 | unsigned long r2 = 0; | |
162 | ||
5deb8e7a | 163 | if (!(kvmppc_get_msr(vcpu) & MSR_SF)) { |
2a342ed5 AG |
164 | /* 32 bit mode */ |
165 | param1 &= 0xffffffff; | |
166 | param2 &= 0xffffffff; | |
167 | param3 &= 0xffffffff; | |
168 | param4 &= 0xffffffff; | |
169 | } | |
170 | ||
171 | switch (nr) { | |
fdcf8bd7 | 172 | case KVM_HCALL_TOKEN(KVM_HC_PPC_MAP_MAGIC_PAGE): |
5fc87407 | 173 | { |
5deb8e7a AG |
174 | #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE) |
175 | /* Book3S can be little endian, find it out here */ | |
176 | int shared_big_endian = true; | |
177 | if (vcpu->arch.intr_msr & MSR_LE) | |
178 | shared_big_endian = false; | |
179 | if (shared_big_endian != vcpu->arch.shared_big_endian) | |
180 | kvmppc_swab_shared(vcpu); | |
181 | vcpu->arch.shared_big_endian = shared_big_endian; | |
182 | #endif | |
183 | ||
f3383cf8 AG |
184 | if (!(param2 & MAGIC_PAGE_FLAG_NOT_MAPPED_NX)) { |
185 | /* | |
186 | * Older versions of the Linux magic page code had | |
187 | * a bug where they would map their trampoline code | |
188 | * NX. If that's the case, remove !PR NX capability. | |
189 | */ | |
190 | vcpu->arch.disable_kernel_nx = true; | |
191 | kvm_make_request(KVM_REQ_TLB_FLUSH, vcpu); | |
192 | } | |
193 | ||
194 | vcpu->arch.magic_page_pa = param1 & ~0xfffULL; | |
195 | vcpu->arch.magic_page_ea = param2 & ~0xfffULL; | |
5fc87407 | 196 | |
89b68c96 AG |
197 | #ifdef CONFIG_PPC_64K_PAGES |
198 | /* | |
199 | * Make sure our 4k magic page is in the same window of a 64k | |
200 | * page within the guest and within the host's page. | |
201 | */ | |
202 | if ((vcpu->arch.magic_page_pa & 0xf000) != | |
203 | ((ulong)vcpu->arch.shared & 0xf000)) { | |
204 | void *old_shared = vcpu->arch.shared; | |
205 | ulong shared = (ulong)vcpu->arch.shared; | |
206 | void *new_shared; | |
207 | ||
208 | shared &= PAGE_MASK; | |
209 | shared |= vcpu->arch.magic_page_pa & 0xf000; | |
210 | new_shared = (void*)shared; | |
211 | memcpy(new_shared, old_shared, 0x1000); | |
212 | vcpu->arch.shared = new_shared; | |
213 | } | |
214 | #endif | |
215 | ||
b5904972 | 216 | r2 = KVM_MAGIC_FEAT_SR | KVM_MAGIC_FEAT_MAS0_TO_SPRG7; |
7508e16c | 217 | |
fdcf8bd7 | 218 | r = EV_SUCCESS; |
5fc87407 AG |
219 | break; |
220 | } | |
fdcf8bd7 SY |
221 | case KVM_HCALL_TOKEN(KVM_HC_FEATURES): |
222 | r = EV_SUCCESS; | |
bf7ca4bd | 223 | #if defined(CONFIG_PPC_BOOK3S) || defined(CONFIG_KVM_E500V2) |
5fc87407 AG |
224 | r2 |= (1 << KVM_FEATURE_MAGIC_PAGE); |
225 | #endif | |
2a342ed5 AG |
226 | |
227 | /* Second return value is in r4 */ | |
2a342ed5 | 228 | break; |
9202e076 LYB |
229 | case EV_HCALL_TOKEN(EV_IDLE): |
230 | r = EV_SUCCESS; | |
231 | kvm_vcpu_block(vcpu); | |
232 | clear_bit(KVM_REQ_UNHALT, &vcpu->requests); | |
233 | break; | |
2a342ed5 | 234 | default: |
fdcf8bd7 | 235 | r = EV_UNIMPLEMENTED; |
2a342ed5 AG |
236 | break; |
237 | } | |
238 | ||
7508e16c AG |
239 | kvmppc_set_gpr(vcpu, 4, r2); |
240 | ||
2a342ed5 AG |
241 | return r; |
242 | } | |
2ba9f0d8 | 243 | EXPORT_SYMBOL_GPL(kvmppc_kvm_pv); |
bbf45ba5 | 244 | |
af8f38b3 AG |
245 | int kvmppc_sanity_check(struct kvm_vcpu *vcpu) |
246 | { | |
247 | int r = false; | |
248 | ||
249 | /* We have to know what CPU to virtualize */ | |
250 | if (!vcpu->arch.pvr) | |
251 | goto out; | |
252 | ||
253 | /* PAPR only works with book3s_64 */ | |
254 | if ((vcpu->arch.cpu_type != KVM_CPU_3S_64) && vcpu->arch.papr_enabled) | |
255 | goto out; | |
256 | ||
af8f38b3 | 257 | /* HV KVM can only do PAPR mode for now */ |
a78b55d1 | 258 | if (!vcpu->arch.papr_enabled && is_kvmppc_hv_enabled(vcpu->kvm)) |
af8f38b3 | 259 | goto out; |
af8f38b3 | 260 | |
d30f6e48 SW |
261 | #ifdef CONFIG_KVM_BOOKE_HV |
262 | if (!cpu_has_feature(CPU_FTR_EMB_HV)) | |
263 | goto out; | |
264 | #endif | |
265 | ||
af8f38b3 AG |
266 | r = true; |
267 | ||
268 | out: | |
269 | vcpu->arch.sane = r; | |
270 | return r ? 0 : -EINVAL; | |
271 | } | |
2ba9f0d8 | 272 | EXPORT_SYMBOL_GPL(kvmppc_sanity_check); |
af8f38b3 | 273 | |
bbf45ba5 HB |
274 | int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu) |
275 | { | |
276 | enum emulation_result er; | |
277 | int r; | |
278 | ||
d69614a2 | 279 | er = kvmppc_emulate_loadstore(vcpu); |
bbf45ba5 HB |
280 | switch (er) { |
281 | case EMULATE_DONE: | |
282 | /* Future optimization: only reload non-volatiles if they were | |
283 | * actually modified. */ | |
284 | r = RESUME_GUEST_NV; | |
285 | break; | |
51f04726 MC |
286 | case EMULATE_AGAIN: |
287 | r = RESUME_GUEST; | |
288 | break; | |
bbf45ba5 HB |
289 | case EMULATE_DO_MMIO: |
290 | run->exit_reason = KVM_EXIT_MMIO; | |
291 | /* We must reload nonvolatiles because "update" load/store | |
292 | * instructions modify register state. */ | |
293 | /* Future optimization: only reload non-volatiles if they were | |
294 | * actually modified. */ | |
295 | r = RESUME_HOST_NV; | |
296 | break; | |
297 | case EMULATE_FAIL: | |
51f04726 MC |
298 | { |
299 | u32 last_inst; | |
300 | ||
8d0eff63 | 301 | kvmppc_get_last_inst(vcpu, INST_GENERIC, &last_inst); |
bbf45ba5 | 302 | /* XXX Deliver Program interrupt to guest. */ |
51f04726 | 303 | pr_emerg("%s: emulation failed (%08x)\n", __func__, last_inst); |
bbf45ba5 HB |
304 | r = RESUME_HOST; |
305 | break; | |
51f04726 | 306 | } |
bbf45ba5 | 307 | default: |
5a33169e AG |
308 | WARN_ON(1); |
309 | r = RESUME_GUEST; | |
bbf45ba5 HB |
310 | } |
311 | ||
312 | return r; | |
313 | } | |
2ba9f0d8 | 314 | EXPORT_SYMBOL_GPL(kvmppc_emulate_mmio); |
bbf45ba5 | 315 | |
35c4a733 AG |
316 | int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, |
317 | bool data) | |
318 | { | |
c12fb43c | 319 | ulong mp_pa = vcpu->arch.magic_page_pa & KVM_PAM & PAGE_MASK; |
35c4a733 AG |
320 | struct kvmppc_pte pte; |
321 | int r; | |
322 | ||
323 | vcpu->stat.st++; | |
324 | ||
325 | r = kvmppc_xlate(vcpu, *eaddr, data ? XLATE_DATA : XLATE_INST, | |
326 | XLATE_WRITE, &pte); | |
327 | if (r < 0) | |
328 | return r; | |
329 | ||
330 | *eaddr = pte.raddr; | |
331 | ||
332 | if (!pte.may_write) | |
333 | return -EPERM; | |
334 | ||
c12fb43c AG |
335 | /* Magic page override */ |
336 | if (kvmppc_supports_magic_page(vcpu) && mp_pa && | |
337 | ((pte.raddr & KVM_PAM & PAGE_MASK) == mp_pa) && | |
338 | !(kvmppc_get_msr(vcpu) & MSR_PR)) { | |
339 | void *magic = vcpu->arch.shared; | |
340 | magic += pte.eaddr & 0xfff; | |
341 | memcpy(magic, ptr, size); | |
342 | return EMULATE_DONE; | |
343 | } | |
344 | ||
35c4a733 AG |
345 | if (kvm_write_guest(vcpu->kvm, pte.raddr, ptr, size)) |
346 | return EMULATE_DO_MMIO; | |
347 | ||
348 | return EMULATE_DONE; | |
349 | } | |
350 | EXPORT_SYMBOL_GPL(kvmppc_st); | |
351 | ||
352 | int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, | |
353 | bool data) | |
354 | { | |
c12fb43c | 355 | ulong mp_pa = vcpu->arch.magic_page_pa & KVM_PAM & PAGE_MASK; |
35c4a733 | 356 | struct kvmppc_pte pte; |
35c4a733 AG |
357 | int rc; |
358 | ||
359 | vcpu->stat.ld++; | |
360 | ||
361 | rc = kvmppc_xlate(vcpu, *eaddr, data ? XLATE_DATA : XLATE_INST, | |
362 | XLATE_READ, &pte); | |
363 | if (rc) | |
364 | return rc; | |
365 | ||
366 | *eaddr = pte.raddr; | |
367 | ||
368 | if (!pte.may_read) | |
369 | return -EPERM; | |
370 | ||
371 | if (!data && !pte.may_execute) | |
372 | return -ENOEXEC; | |
373 | ||
c12fb43c AG |
374 | /* Magic page override */ |
375 | if (kvmppc_supports_magic_page(vcpu) && mp_pa && | |
376 | ((pte.raddr & KVM_PAM & PAGE_MASK) == mp_pa) && | |
377 | !(kvmppc_get_msr(vcpu) & MSR_PR)) { | |
378 | void *magic = vcpu->arch.shared; | |
379 | magic += pte.eaddr & 0xfff; | |
380 | memcpy(ptr, magic, size); | |
381 | return EMULATE_DONE; | |
382 | } | |
383 | ||
c45c5514 AG |
384 | if (kvm_read_guest(vcpu->kvm, pte.raddr, ptr, size)) |
385 | return EMULATE_DO_MMIO; | |
35c4a733 AG |
386 | |
387 | return EMULATE_DONE; | |
35c4a733 AG |
388 | } |
389 | EXPORT_SYMBOL_GPL(kvmppc_ld); | |
390 | ||
13a34e06 | 391 | int kvm_arch_hardware_enable(void) |
bbf45ba5 | 392 | { |
10474ae8 | 393 | return 0; |
bbf45ba5 HB |
394 | } |
395 | ||
bbf45ba5 HB |
396 | int kvm_arch_hardware_setup(void) |
397 | { | |
398 | return 0; | |
399 | } | |
400 | ||
bbf45ba5 HB |
401 | void kvm_arch_check_processor_compat(void *rtn) |
402 | { | |
9dd921cf | 403 | *(int *)rtn = kvmppc_core_check_processor_compat(); |
bbf45ba5 HB |
404 | } |
405 | ||
e08b9637 | 406 | int kvm_arch_init_vm(struct kvm *kvm, unsigned long type) |
bbf45ba5 | 407 | { |
cbbc58d4 AK |
408 | struct kvmppc_ops *kvm_ops = NULL; |
409 | /* | |
410 | * if we have both HV and PR enabled, default is HV | |
411 | */ | |
412 | if (type == 0) { | |
413 | if (kvmppc_hv_ops) | |
414 | kvm_ops = kvmppc_hv_ops; | |
415 | else | |
416 | kvm_ops = kvmppc_pr_ops; | |
417 | if (!kvm_ops) | |
418 | goto err_out; | |
419 | } else if (type == KVM_VM_PPC_HV) { | |
420 | if (!kvmppc_hv_ops) | |
421 | goto err_out; | |
422 | kvm_ops = kvmppc_hv_ops; | |
423 | } else if (type == KVM_VM_PPC_PR) { | |
424 | if (!kvmppc_pr_ops) | |
425 | goto err_out; | |
426 | kvm_ops = kvmppc_pr_ops; | |
427 | } else | |
428 | goto err_out; | |
429 | ||
430 | if (kvm_ops->owner && !try_module_get(kvm_ops->owner)) | |
431 | return -ENOENT; | |
432 | ||
433 | kvm->arch.kvm_ops = kvm_ops; | |
f9e0554d | 434 | return kvmppc_core_init_vm(kvm); |
cbbc58d4 AK |
435 | err_out: |
436 | return -EINVAL; | |
bbf45ba5 HB |
437 | } |
438 | ||
d89f5eff | 439 | void kvm_arch_destroy_vm(struct kvm *kvm) |
bbf45ba5 HB |
440 | { |
441 | unsigned int i; | |
988a2cae | 442 | struct kvm_vcpu *vcpu; |
bbf45ba5 | 443 | |
e17769eb SW |
444 | #ifdef CONFIG_KVM_XICS |
445 | /* | |
446 | * We call kick_all_cpus_sync() to ensure that all | |
447 | * CPUs have executed any pending IPIs before we | |
448 | * continue and free VCPUs structures below. | |
449 | */ | |
450 | if (is_kvmppc_hv_enabled(kvm)) | |
451 | kick_all_cpus_sync(); | |
452 | #endif | |
453 | ||
988a2cae GN |
454 | kvm_for_each_vcpu(i, vcpu, kvm) |
455 | kvm_arch_vcpu_free(vcpu); | |
456 | ||
457 | mutex_lock(&kvm->lock); | |
458 | for (i = 0; i < atomic_read(&kvm->online_vcpus); i++) | |
459 | kvm->vcpus[i] = NULL; | |
460 | ||
461 | atomic_set(&kvm->online_vcpus, 0); | |
f9e0554d PM |
462 | |
463 | kvmppc_core_destroy_vm(kvm); | |
464 | ||
988a2cae | 465 | mutex_unlock(&kvm->lock); |
cbbc58d4 AK |
466 | |
467 | /* drop the module reference */ | |
468 | module_put(kvm->arch.kvm_ops->owner); | |
bbf45ba5 HB |
469 | } |
470 | ||
784aa3d7 | 471 | int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) |
bbf45ba5 HB |
472 | { |
473 | int r; | |
7a58777a | 474 | /* Assume we're using HV mode when the HV module is loaded */ |
cbbc58d4 | 475 | int hv_enabled = kvmppc_hv_ops ? 1 : 0; |
bbf45ba5 | 476 | |
7a58777a AG |
477 | if (kvm) { |
478 | /* | |
479 | * Hooray - we know which VM type we're running on. Depend on | |
480 | * that rather than the guess above. | |
481 | */ | |
482 | hv_enabled = is_kvmppc_hv_enabled(kvm); | |
483 | } | |
484 | ||
bbf45ba5 | 485 | switch (ext) { |
5ce941ee SW |
486 | #ifdef CONFIG_BOOKE |
487 | case KVM_CAP_PPC_BOOKE_SREGS: | |
f61c94bb | 488 | case KVM_CAP_PPC_BOOKE_WATCHDOG: |
1c810636 | 489 | case KVM_CAP_PPC_EPR: |
5ce941ee | 490 | #else |
e15a1137 | 491 | case KVM_CAP_PPC_SEGSTATE: |
1022fc3d | 492 | case KVM_CAP_PPC_HIOR: |
930b412a | 493 | case KVM_CAP_PPC_PAPR: |
5ce941ee | 494 | #endif |
18978768 | 495 | case KVM_CAP_PPC_UNSET_IRQ: |
7b4203e8 | 496 | case KVM_CAP_PPC_IRQ_LEVEL: |
71fbfd5f | 497 | case KVM_CAP_ENABLE_CAP: |
699a0ea0 | 498 | case KVM_CAP_ENABLE_CAP_VM: |
e24ed81f | 499 | case KVM_CAP_ONE_REG: |
0e673fb6 | 500 | case KVM_CAP_IOEVENTFD: |
5df554ad | 501 | case KVM_CAP_DEVICE_CTRL: |
de56a948 PM |
502 | r = 1; |
503 | break; | |
de56a948 | 504 | case KVM_CAP_PPC_PAIRED_SINGLES: |
ad0a048b | 505 | case KVM_CAP_PPC_OSI: |
15711e9c | 506 | case KVM_CAP_PPC_GET_PVINFO: |
bf7ca4bd | 507 | #if defined(CONFIG_KVM_E500V2) || defined(CONFIG_KVM_E500MC) |
dc83b8bc | 508 | case KVM_CAP_SW_TLB: |
eb1e4f43 | 509 | #endif |
699cc876 | 510 | /* We support this only for PR */ |
cbbc58d4 | 511 | r = !hv_enabled; |
e15a1137 | 512 | break; |
699cc876 | 513 | #ifdef CONFIG_KVM_MMIO |
588968b6 LV |
514 | case KVM_CAP_COALESCED_MMIO: |
515 | r = KVM_COALESCED_MMIO_PAGE_OFFSET; | |
516 | break; | |
54738c09 | 517 | #endif |
699cc876 AK |
518 | #ifdef CONFIG_KVM_MPIC |
519 | case KVM_CAP_IRQ_MPIC: | |
520 | r = 1; | |
521 | break; | |
522 | #endif | |
523 | ||
f31e65e1 | 524 | #ifdef CONFIG_PPC_BOOK3S_64 |
54738c09 | 525 | case KVM_CAP_SPAPR_TCE: |
58ded420 | 526 | case KVM_CAP_SPAPR_TCE_64: |
32fad281 | 527 | case KVM_CAP_PPC_ALLOC_HTAB: |
8e591cb7 | 528 | case KVM_CAP_PPC_RTAS: |
f2e91042 | 529 | case KVM_CAP_PPC_FIXUP_HCALL: |
699a0ea0 | 530 | case KVM_CAP_PPC_ENABLE_HCALL: |
5975a2e0 PM |
531 | #ifdef CONFIG_KVM_XICS |
532 | case KVM_CAP_IRQ_XICS: | |
533 | #endif | |
54738c09 DG |
534 | r = 1; |
535 | break; | |
f31e65e1 | 536 | #endif /* CONFIG_PPC_BOOK3S_64 */ |
699cc876 | 537 | #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE |
371fefd6 | 538 | case KVM_CAP_PPC_SMT: |
cbbc58d4 | 539 | if (hv_enabled) |
3102f784 | 540 | r = threads_per_subcore; |
699cc876 AK |
541 | else |
542 | r = 0; | |
371fefd6 | 543 | break; |
aa04b4cc | 544 | case KVM_CAP_PPC_RMA: |
c17b98cf | 545 | r = 0; |
aa04b4cc | 546 | break; |
e928e9cb ME |
547 | case KVM_CAP_PPC_HWRNG: |
548 | r = kvmppc_hwrng_present(); | |
549 | break; | |
f4800b1f | 550 | #endif |
342d3db7 | 551 | case KVM_CAP_SYNC_MMU: |
699cc876 | 552 | #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE |
c17b98cf | 553 | r = hv_enabled; |
f4800b1f AG |
554 | #elif defined(KVM_ARCH_WANT_MMU_NOTIFIER) |
555 | r = 1; | |
556 | #else | |
557 | r = 0; | |
a2932923 | 558 | #endif |
699cc876 AK |
559 | break; |
560 | #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE | |
a2932923 | 561 | case KVM_CAP_PPC_HTAB_FD: |
cbbc58d4 | 562 | r = hv_enabled; |
a2932923 | 563 | break; |
de56a948 | 564 | #endif |
b5434032 ME |
565 | case KVM_CAP_NR_VCPUS: |
566 | /* | |
567 | * Recommending a number of CPUs is somewhat arbitrary; we | |
568 | * return the number of present CPUs for -HV (since a host | |
569 | * will have secondary threads "offline"), and for other KVM | |
570 | * implementations just count online CPUs. | |
571 | */ | |
cbbc58d4 | 572 | if (hv_enabled) |
699cc876 AK |
573 | r = num_present_cpus(); |
574 | else | |
575 | r = num_online_cpus(); | |
b5434032 | 576 | break; |
bfec5c2c ND |
577 | case KVM_CAP_NR_MEMSLOTS: |
578 | r = KVM_USER_MEM_SLOTS; | |
579 | break; | |
b5434032 ME |
580 | case KVM_CAP_MAX_VCPUS: |
581 | r = KVM_MAX_VCPUS; | |
582 | break; | |
5b74716e BH |
583 | #ifdef CONFIG_PPC_BOOK3S_64 |
584 | case KVM_CAP_PPC_GET_SMMU_INFO: | |
585 | r = 1; | |
586 | break; | |
d3695aa4 AK |
587 | case KVM_CAP_SPAPR_MULTITCE: |
588 | r = 1; | |
589 | break; | |
5b74716e | 590 | #endif |
23528bb2 SB |
591 | case KVM_CAP_PPC_HTM: |
592 | r = cpu_has_feature(CPU_FTR_TM_COMP) && | |
593 | is_kvmppc_hv_enabled(kvm); | |
594 | break; | |
bbf45ba5 HB |
595 | default: |
596 | r = 0; | |
597 | break; | |
598 | } | |
599 | return r; | |
600 | ||
601 | } | |
602 | ||
603 | long kvm_arch_dev_ioctl(struct file *filp, | |
604 | unsigned int ioctl, unsigned long arg) | |
605 | { | |
606 | return -EINVAL; | |
607 | } | |
608 | ||
5587027c | 609 | void kvm_arch_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free, |
db3fe4eb TY |
610 | struct kvm_memory_slot *dont) |
611 | { | |
5587027c | 612 | kvmppc_core_free_memslot(kvm, free, dont); |
db3fe4eb TY |
613 | } |
614 | ||
5587027c AK |
615 | int kvm_arch_create_memslot(struct kvm *kvm, struct kvm_memory_slot *slot, |
616 | unsigned long npages) | |
db3fe4eb | 617 | { |
5587027c | 618 | return kvmppc_core_create_memslot(kvm, slot, npages); |
db3fe4eb TY |
619 | } |
620 | ||
f7784b8e | 621 | int kvm_arch_prepare_memory_region(struct kvm *kvm, |
462fce46 | 622 | struct kvm_memory_slot *memslot, |
09170a49 | 623 | const struct kvm_userspace_memory_region *mem, |
7b6195a9 | 624 | enum kvm_mr_change change) |
bbf45ba5 | 625 | { |
a66b48c3 | 626 | return kvmppc_core_prepare_memory_region(kvm, memslot, mem); |
bbf45ba5 HB |
627 | } |
628 | ||
f7784b8e | 629 | void kvm_arch_commit_memory_region(struct kvm *kvm, |
09170a49 | 630 | const struct kvm_userspace_memory_region *mem, |
8482644a | 631 | const struct kvm_memory_slot *old, |
f36f3f28 | 632 | const struct kvm_memory_slot *new, |
8482644a | 633 | enum kvm_mr_change change) |
f7784b8e | 634 | { |
f36f3f28 | 635 | kvmppc_core_commit_memory_region(kvm, mem, old, new); |
f7784b8e MT |
636 | } |
637 | ||
2df72e9b MT |
638 | void kvm_arch_flush_shadow_memslot(struct kvm *kvm, |
639 | struct kvm_memory_slot *slot) | |
34d4cb8f | 640 | { |
dfe49dbd | 641 | kvmppc_core_flush_memslot(kvm, slot); |
34d4cb8f MT |
642 | } |
643 | ||
bbf45ba5 HB |
644 | struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id) |
645 | { | |
73e75b41 HB |
646 | struct kvm_vcpu *vcpu; |
647 | vcpu = kvmppc_core_vcpu_create(kvm, id); | |
03cdab53 ME |
648 | if (!IS_ERR(vcpu)) { |
649 | vcpu->arch.wqp = &vcpu->wq; | |
06056bfb | 650 | kvmppc_create_vcpu_debugfs(vcpu, id); |
03cdab53 | 651 | } |
73e75b41 | 652 | return vcpu; |
bbf45ba5 HB |
653 | } |
654 | ||
31928aa5 | 655 | void kvm_arch_vcpu_postcreate(struct kvm_vcpu *vcpu) |
42897d86 | 656 | { |
42897d86 MT |
657 | } |
658 | ||
bbf45ba5 HB |
659 | void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu) |
660 | { | |
a595405d AG |
661 | /* Make sure we're not using the vcpu anymore */ |
662 | hrtimer_cancel(&vcpu->arch.dec_timer); | |
a595405d | 663 | |
73e75b41 | 664 | kvmppc_remove_vcpu_debugfs(vcpu); |
eb1e4f43 SW |
665 | |
666 | switch (vcpu->arch.irq_type) { | |
667 | case KVMPPC_IRQ_MPIC: | |
668 | kvmppc_mpic_disconnect_vcpu(vcpu->arch.mpic, vcpu); | |
669 | break; | |
bc5ad3f3 BH |
670 | case KVMPPC_IRQ_XICS: |
671 | kvmppc_xics_free_icp(vcpu); | |
672 | break; | |
eb1e4f43 SW |
673 | } |
674 | ||
db93f574 | 675 | kvmppc_core_vcpu_free(vcpu); |
bbf45ba5 HB |
676 | } |
677 | ||
678 | void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu) | |
679 | { | |
680 | kvm_arch_vcpu_free(vcpu); | |
681 | } | |
682 | ||
683 | int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu) | |
684 | { | |
9dd921cf | 685 | return kvmppc_core_pending_dec(vcpu); |
bbf45ba5 HB |
686 | } |
687 | ||
5358a963 | 688 | static enum hrtimer_restart kvmppc_decrementer_wakeup(struct hrtimer *timer) |
544c6761 AG |
689 | { |
690 | struct kvm_vcpu *vcpu; | |
691 | ||
692 | vcpu = container_of(timer, struct kvm_vcpu, arch.dec_timer); | |
d02d4d15 | 693 | kvmppc_decrementer_func(vcpu); |
544c6761 AG |
694 | |
695 | return HRTIMER_NORESTART; | |
696 | } | |
697 | ||
bbf45ba5 HB |
698 | int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu) |
699 | { | |
f61c94bb BB |
700 | int ret; |
701 | ||
544c6761 | 702 | hrtimer_init(&vcpu->arch.dec_timer, CLOCK_REALTIME, HRTIMER_MODE_ABS); |
544c6761 | 703 | vcpu->arch.dec_timer.function = kvmppc_decrementer_wakeup; |
de56a948 | 704 | vcpu->arch.dec_expires = ~(u64)0; |
bbf45ba5 | 705 | |
09000adb BB |
706 | #ifdef CONFIG_KVM_EXIT_TIMING |
707 | mutex_init(&vcpu->arch.exit_timing_lock); | |
708 | #endif | |
f61c94bb BB |
709 | ret = kvmppc_subarch_vcpu_init(vcpu); |
710 | return ret; | |
bbf45ba5 HB |
711 | } |
712 | ||
713 | void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) | |
714 | { | |
ecc0981f | 715 | kvmppc_mmu_destroy(vcpu); |
f61c94bb | 716 | kvmppc_subarch_vcpu_uninit(vcpu); |
bbf45ba5 HB |
717 | } |
718 | ||
719 | void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu) | |
720 | { | |
eab17672 SW |
721 | #ifdef CONFIG_BOOKE |
722 | /* | |
723 | * vrsave (formerly usprg0) isn't used by Linux, but may | |
724 | * be used by the guest. | |
725 | * | |
726 | * On non-booke this is associated with Altivec and | |
727 | * is handled by code in book3s.c. | |
728 | */ | |
729 | mtspr(SPRN_VRSAVE, vcpu->arch.vrsave); | |
730 | #endif | |
9dd921cf | 731 | kvmppc_core_vcpu_load(vcpu, cpu); |
bbf45ba5 HB |
732 | } |
733 | ||
734 | void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu) | |
735 | { | |
9dd921cf | 736 | kvmppc_core_vcpu_put(vcpu); |
eab17672 SW |
737 | #ifdef CONFIG_BOOKE |
738 | vcpu->arch.vrsave = mfspr(SPRN_VRSAVE); | |
739 | #endif | |
bbf45ba5 HB |
740 | } |
741 | ||
bbf45ba5 HB |
742 | static void kvmppc_complete_mmio_load(struct kvm_vcpu *vcpu, |
743 | struct kvm_run *run) | |
744 | { | |
69b61833 | 745 | u64 uninitialized_var(gpr); |
bbf45ba5 | 746 | |
8e5b26b5 | 747 | if (run->mmio.len > sizeof(gpr)) { |
bbf45ba5 HB |
748 | printk(KERN_ERR "bad MMIO length: %d\n", run->mmio.len); |
749 | return; | |
750 | } | |
751 | ||
d078eed3 | 752 | if (!vcpu->arch.mmio_host_swabbed) { |
bbf45ba5 | 753 | switch (run->mmio.len) { |
b104d066 | 754 | case 8: gpr = *(u64 *)run->mmio.data; break; |
8e5b26b5 AG |
755 | case 4: gpr = *(u32 *)run->mmio.data; break; |
756 | case 2: gpr = *(u16 *)run->mmio.data; break; | |
757 | case 1: gpr = *(u8 *)run->mmio.data; break; | |
bbf45ba5 HB |
758 | } |
759 | } else { | |
bbf45ba5 | 760 | switch (run->mmio.len) { |
d078eed3 DG |
761 | case 8: gpr = swab64(*(u64 *)run->mmio.data); break; |
762 | case 4: gpr = swab32(*(u32 *)run->mmio.data); break; | |
763 | case 2: gpr = swab16(*(u16 *)run->mmio.data); break; | |
8e5b26b5 | 764 | case 1: gpr = *(u8 *)run->mmio.data; break; |
bbf45ba5 HB |
765 | } |
766 | } | |
8e5b26b5 | 767 | |
3587d534 AG |
768 | if (vcpu->arch.mmio_sign_extend) { |
769 | switch (run->mmio.len) { | |
770 | #ifdef CONFIG_PPC64 | |
771 | case 4: | |
772 | gpr = (s64)(s32)gpr; | |
773 | break; | |
774 | #endif | |
775 | case 2: | |
776 | gpr = (s64)(s16)gpr; | |
777 | break; | |
778 | case 1: | |
779 | gpr = (s64)(s8)gpr; | |
780 | break; | |
781 | } | |
782 | } | |
783 | ||
8e5b26b5 | 784 | kvmppc_set_gpr(vcpu, vcpu->arch.io_gpr, gpr); |
b104d066 | 785 | |
b3c5d3c2 AG |
786 | switch (vcpu->arch.io_gpr & KVM_MMIO_REG_EXT_MASK) { |
787 | case KVM_MMIO_REG_GPR: | |
b104d066 AG |
788 | kvmppc_set_gpr(vcpu, vcpu->arch.io_gpr, gpr); |
789 | break; | |
b3c5d3c2 | 790 | case KVM_MMIO_REG_FPR: |
efff1912 | 791 | VCPU_FPR(vcpu, vcpu->arch.io_gpr & KVM_MMIO_REG_MASK) = gpr; |
b104d066 | 792 | break; |
287d5611 | 793 | #ifdef CONFIG_PPC_BOOK3S |
b3c5d3c2 AG |
794 | case KVM_MMIO_REG_QPR: |
795 | vcpu->arch.qpr[vcpu->arch.io_gpr & KVM_MMIO_REG_MASK] = gpr; | |
b104d066 | 796 | break; |
b3c5d3c2 | 797 | case KVM_MMIO_REG_FQPR: |
efff1912 | 798 | VCPU_FPR(vcpu, vcpu->arch.io_gpr & KVM_MMIO_REG_MASK) = gpr; |
b3c5d3c2 | 799 | vcpu->arch.qpr[vcpu->arch.io_gpr & KVM_MMIO_REG_MASK] = gpr; |
b104d066 | 800 | break; |
287d5611 | 801 | #endif |
b104d066 AG |
802 | default: |
803 | BUG(); | |
804 | } | |
bbf45ba5 HB |
805 | } |
806 | ||
eb8b0560 PM |
807 | static int __kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu, |
808 | unsigned int rt, unsigned int bytes, | |
809 | int is_default_endian, int sign_extend) | |
bbf45ba5 | 810 | { |
ed840ee9 | 811 | int idx, ret; |
d078eed3 | 812 | bool host_swabbed; |
73601775 | 813 | |
d078eed3 | 814 | /* Pity C doesn't have a logical XOR operator */ |
73601775 | 815 | if (kvmppc_need_byteswap(vcpu)) { |
d078eed3 | 816 | host_swabbed = is_default_endian; |
73601775 | 817 | } else { |
d078eed3 | 818 | host_swabbed = !is_default_endian; |
73601775 | 819 | } |
ed840ee9 | 820 | |
bbf45ba5 HB |
821 | if (bytes > sizeof(run->mmio.data)) { |
822 | printk(KERN_ERR "%s: bad MMIO length: %d\n", __func__, | |
823 | run->mmio.len); | |
824 | } | |
825 | ||
826 | run->mmio.phys_addr = vcpu->arch.paddr_accessed; | |
827 | run->mmio.len = bytes; | |
828 | run->mmio.is_write = 0; | |
829 | ||
830 | vcpu->arch.io_gpr = rt; | |
d078eed3 | 831 | vcpu->arch.mmio_host_swabbed = host_swabbed; |
bbf45ba5 HB |
832 | vcpu->mmio_needed = 1; |
833 | vcpu->mmio_is_write = 0; | |
eb8b0560 | 834 | vcpu->arch.mmio_sign_extend = sign_extend; |
bbf45ba5 | 835 | |
ed840ee9 SW |
836 | idx = srcu_read_lock(&vcpu->kvm->srcu); |
837 | ||
e32edf4f | 838 | ret = kvm_io_bus_read(vcpu, KVM_MMIO_BUS, run->mmio.phys_addr, |
ed840ee9 SW |
839 | bytes, &run->mmio.data); |
840 | ||
841 | srcu_read_unlock(&vcpu->kvm->srcu, idx); | |
842 | ||
843 | if (!ret) { | |
0e673fb6 AG |
844 | kvmppc_complete_mmio_load(vcpu, run); |
845 | vcpu->mmio_needed = 0; | |
846 | return EMULATE_DONE; | |
847 | } | |
848 | ||
bbf45ba5 HB |
849 | return EMULATE_DO_MMIO; |
850 | } | |
eb8b0560 PM |
851 | |
852 | int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu, | |
853 | unsigned int rt, unsigned int bytes, | |
854 | int is_default_endian) | |
855 | { | |
856 | return __kvmppc_handle_load(run, vcpu, rt, bytes, is_default_endian, 0); | |
857 | } | |
2ba9f0d8 | 858 | EXPORT_SYMBOL_GPL(kvmppc_handle_load); |
bbf45ba5 | 859 | |
3587d534 AG |
860 | /* Same as above, but sign extends */ |
861 | int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu, | |
73601775 CLG |
862 | unsigned int rt, unsigned int bytes, |
863 | int is_default_endian) | |
3587d534 | 864 | { |
eb8b0560 | 865 | return __kvmppc_handle_load(run, vcpu, rt, bytes, is_default_endian, 1); |
3587d534 AG |
866 | } |
867 | ||
bbf45ba5 | 868 | int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu, |
73601775 | 869 | u64 val, unsigned int bytes, int is_default_endian) |
bbf45ba5 HB |
870 | { |
871 | void *data = run->mmio.data; | |
ed840ee9 | 872 | int idx, ret; |
d078eed3 | 873 | bool host_swabbed; |
73601775 | 874 | |
d078eed3 | 875 | /* Pity C doesn't have a logical XOR operator */ |
73601775 | 876 | if (kvmppc_need_byteswap(vcpu)) { |
d078eed3 | 877 | host_swabbed = is_default_endian; |
73601775 | 878 | } else { |
d078eed3 | 879 | host_swabbed = !is_default_endian; |
73601775 | 880 | } |
bbf45ba5 HB |
881 | |
882 | if (bytes > sizeof(run->mmio.data)) { | |
883 | printk(KERN_ERR "%s: bad MMIO length: %d\n", __func__, | |
884 | run->mmio.len); | |
885 | } | |
886 | ||
887 | run->mmio.phys_addr = vcpu->arch.paddr_accessed; | |
888 | run->mmio.len = bytes; | |
889 | run->mmio.is_write = 1; | |
890 | vcpu->mmio_needed = 1; | |
891 | vcpu->mmio_is_write = 1; | |
892 | ||
893 | /* Store the value at the lowest bytes in 'data'. */ | |
d078eed3 | 894 | if (!host_swabbed) { |
bbf45ba5 | 895 | switch (bytes) { |
b104d066 | 896 | case 8: *(u64 *)data = val; break; |
bbf45ba5 HB |
897 | case 4: *(u32 *)data = val; break; |
898 | case 2: *(u16 *)data = val; break; | |
899 | case 1: *(u8 *)data = val; break; | |
900 | } | |
901 | } else { | |
bbf45ba5 | 902 | switch (bytes) { |
d078eed3 DG |
903 | case 8: *(u64 *)data = swab64(val); break; |
904 | case 4: *(u32 *)data = swab32(val); break; | |
905 | case 2: *(u16 *)data = swab16(val); break; | |
906 | case 1: *(u8 *)data = val; break; | |
bbf45ba5 HB |
907 | } |
908 | } | |
909 | ||
ed840ee9 SW |
910 | idx = srcu_read_lock(&vcpu->kvm->srcu); |
911 | ||
e32edf4f | 912 | ret = kvm_io_bus_write(vcpu, KVM_MMIO_BUS, run->mmio.phys_addr, |
ed840ee9 SW |
913 | bytes, &run->mmio.data); |
914 | ||
915 | srcu_read_unlock(&vcpu->kvm->srcu, idx); | |
916 | ||
917 | if (!ret) { | |
0e673fb6 AG |
918 | vcpu->mmio_needed = 0; |
919 | return EMULATE_DONE; | |
920 | } | |
921 | ||
bbf45ba5 HB |
922 | return EMULATE_DO_MMIO; |
923 | } | |
2ba9f0d8 | 924 | EXPORT_SYMBOL_GPL(kvmppc_handle_store); |
bbf45ba5 | 925 | |
8a41ea53 MC |
926 | int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg) |
927 | { | |
928 | int r = 0; | |
929 | union kvmppc_one_reg val; | |
930 | int size; | |
931 | ||
932 | size = one_reg_size(reg->id); | |
933 | if (size > sizeof(val)) | |
934 | return -EINVAL; | |
935 | ||
936 | r = kvmppc_get_one_reg(vcpu, reg->id, &val); | |
937 | if (r == -EINVAL) { | |
938 | r = 0; | |
939 | switch (reg->id) { | |
3840edc8 MC |
940 | #ifdef CONFIG_ALTIVEC |
941 | case KVM_REG_PPC_VR0 ... KVM_REG_PPC_VR31: | |
942 | if (!cpu_has_feature(CPU_FTR_ALTIVEC)) { | |
943 | r = -ENXIO; | |
944 | break; | |
945 | } | |
b4d7f161 | 946 | val.vval = vcpu->arch.vr.vr[reg->id - KVM_REG_PPC_VR0]; |
3840edc8 MC |
947 | break; |
948 | case KVM_REG_PPC_VSCR: | |
949 | if (!cpu_has_feature(CPU_FTR_ALTIVEC)) { | |
950 | r = -ENXIO; | |
951 | break; | |
952 | } | |
b4d7f161 | 953 | val = get_reg_val(reg->id, vcpu->arch.vr.vscr.u[3]); |
3840edc8 MC |
954 | break; |
955 | case KVM_REG_PPC_VRSAVE: | |
b4d7f161 | 956 | val = get_reg_val(reg->id, vcpu->arch.vrsave); |
3840edc8 MC |
957 | break; |
958 | #endif /* CONFIG_ALTIVEC */ | |
8a41ea53 MC |
959 | default: |
960 | r = -EINVAL; | |
961 | break; | |
962 | } | |
963 | } | |
964 | ||
965 | if (r) | |
966 | return r; | |
967 | ||
968 | if (copy_to_user((char __user *)(unsigned long)reg->addr, &val, size)) | |
969 | r = -EFAULT; | |
970 | ||
971 | return r; | |
972 | } | |
973 | ||
974 | int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg) | |
975 | { | |
976 | int r; | |
977 | union kvmppc_one_reg val; | |
978 | int size; | |
979 | ||
980 | size = one_reg_size(reg->id); | |
981 | if (size > sizeof(val)) | |
982 | return -EINVAL; | |
983 | ||
984 | if (copy_from_user(&val, (char __user *)(unsigned long)reg->addr, size)) | |
985 | return -EFAULT; | |
986 | ||
987 | r = kvmppc_set_one_reg(vcpu, reg->id, &val); | |
988 | if (r == -EINVAL) { | |
989 | r = 0; | |
990 | switch (reg->id) { | |
3840edc8 MC |
991 | #ifdef CONFIG_ALTIVEC |
992 | case KVM_REG_PPC_VR0 ... KVM_REG_PPC_VR31: | |
993 | if (!cpu_has_feature(CPU_FTR_ALTIVEC)) { | |
994 | r = -ENXIO; | |
995 | break; | |
996 | } | |
b4d7f161 | 997 | vcpu->arch.vr.vr[reg->id - KVM_REG_PPC_VR0] = val.vval; |
3840edc8 MC |
998 | break; |
999 | case KVM_REG_PPC_VSCR: | |
1000 | if (!cpu_has_feature(CPU_FTR_ALTIVEC)) { | |
1001 | r = -ENXIO; | |
1002 | break; | |
1003 | } | |
b4d7f161 | 1004 | vcpu->arch.vr.vscr.u[3] = set_reg_val(reg->id, val); |
3840edc8 MC |
1005 | break; |
1006 | case KVM_REG_PPC_VRSAVE: | |
b4d7f161 GK |
1007 | if (!cpu_has_feature(CPU_FTR_ALTIVEC)) { |
1008 | r = -ENXIO; | |
1009 | break; | |
1010 | } | |
1011 | vcpu->arch.vrsave = set_reg_val(reg->id, val); | |
3840edc8 MC |
1012 | break; |
1013 | #endif /* CONFIG_ALTIVEC */ | |
8a41ea53 MC |
1014 | default: |
1015 | r = -EINVAL; | |
1016 | break; | |
1017 | } | |
1018 | } | |
1019 | ||
1020 | return r; | |
1021 | } | |
1022 | ||
bbf45ba5 HB |
1023 | int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run) |
1024 | { | |
1025 | int r; | |
1026 | sigset_t sigsaved; | |
1027 | ||
1028 | if (vcpu->sigset_active) | |
1029 | sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved); | |
1030 | ||
1031 | if (vcpu->mmio_needed) { | |
1032 | if (!vcpu->mmio_is_write) | |
1033 | kvmppc_complete_mmio_load(vcpu, run); | |
1034 | vcpu->mmio_needed = 0; | |
ad0a048b AG |
1035 | } else if (vcpu->arch.osi_needed) { |
1036 | u64 *gprs = run->osi.gprs; | |
1037 | int i; | |
1038 | ||
1039 | for (i = 0; i < 32; i++) | |
1040 | kvmppc_set_gpr(vcpu, i, gprs[i]); | |
1041 | vcpu->arch.osi_needed = 0; | |
de56a948 PM |
1042 | } else if (vcpu->arch.hcall_needed) { |
1043 | int i; | |
1044 | ||
1045 | kvmppc_set_gpr(vcpu, 3, run->papr_hcall.ret); | |
1046 | for (i = 0; i < 9; ++i) | |
1047 | kvmppc_set_gpr(vcpu, 4 + i, run->papr_hcall.args[i]); | |
1048 | vcpu->arch.hcall_needed = 0; | |
1c810636 AG |
1049 | #ifdef CONFIG_BOOKE |
1050 | } else if (vcpu->arch.epr_needed) { | |
1051 | kvmppc_set_epr(vcpu, run->epr.epr); | |
1052 | vcpu->arch.epr_needed = 0; | |
1053 | #endif | |
bbf45ba5 HB |
1054 | } |
1055 | ||
df6909e5 | 1056 | r = kvmppc_vcpu_run(run, vcpu); |
bbf45ba5 HB |
1057 | |
1058 | if (vcpu->sigset_active) | |
1059 | sigprocmask(SIG_SETMASK, &sigsaved, NULL); | |
1060 | ||
1061 | return r; | |
1062 | } | |
1063 | ||
1064 | int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq) | |
1065 | { | |
19ccb76a | 1066 | if (irq->irq == KVM_INTERRUPT_UNSET) { |
4fe27d2a | 1067 | kvmppc_core_dequeue_external(vcpu); |
19ccb76a PM |
1068 | return 0; |
1069 | } | |
1070 | ||
1071 | kvmppc_core_queue_external(vcpu, irq); | |
b6d33834 | 1072 | |
dfd4d47e | 1073 | kvm_vcpu_kick(vcpu); |
45c5eb67 | 1074 | |
bbf45ba5 HB |
1075 | return 0; |
1076 | } | |
1077 | ||
71fbfd5f AG |
1078 | static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu, |
1079 | struct kvm_enable_cap *cap) | |
1080 | { | |
1081 | int r; | |
1082 | ||
1083 | if (cap->flags) | |
1084 | return -EINVAL; | |
1085 | ||
1086 | switch (cap->cap) { | |
ad0a048b AG |
1087 | case KVM_CAP_PPC_OSI: |
1088 | r = 0; | |
1089 | vcpu->arch.osi_enabled = true; | |
1090 | break; | |
930b412a AG |
1091 | case KVM_CAP_PPC_PAPR: |
1092 | r = 0; | |
1093 | vcpu->arch.papr_enabled = true; | |
1094 | break; | |
1c810636 AG |
1095 | case KVM_CAP_PPC_EPR: |
1096 | r = 0; | |
5df554ad SW |
1097 | if (cap->args[0]) |
1098 | vcpu->arch.epr_flags |= KVMPPC_EPR_USER; | |
1099 | else | |
1100 | vcpu->arch.epr_flags &= ~KVMPPC_EPR_USER; | |
1c810636 | 1101 | break; |
f61c94bb BB |
1102 | #ifdef CONFIG_BOOKE |
1103 | case KVM_CAP_PPC_BOOKE_WATCHDOG: | |
1104 | r = 0; | |
1105 | vcpu->arch.watchdog_enabled = true; | |
1106 | break; | |
1107 | #endif | |
bf7ca4bd | 1108 | #if defined(CONFIG_KVM_E500V2) || defined(CONFIG_KVM_E500MC) |
dc83b8bc SW |
1109 | case KVM_CAP_SW_TLB: { |
1110 | struct kvm_config_tlb cfg; | |
1111 | void __user *user_ptr = (void __user *)(uintptr_t)cap->args[0]; | |
1112 | ||
1113 | r = -EFAULT; | |
1114 | if (copy_from_user(&cfg, user_ptr, sizeof(cfg))) | |
1115 | break; | |
1116 | ||
1117 | r = kvm_vcpu_ioctl_config_tlb(vcpu, &cfg); | |
1118 | break; | |
eb1e4f43 SW |
1119 | } |
1120 | #endif | |
1121 | #ifdef CONFIG_KVM_MPIC | |
1122 | case KVM_CAP_IRQ_MPIC: { | |
70abaded | 1123 | struct fd f; |
eb1e4f43 SW |
1124 | struct kvm_device *dev; |
1125 | ||
1126 | r = -EBADF; | |
70abaded AV |
1127 | f = fdget(cap->args[0]); |
1128 | if (!f.file) | |
eb1e4f43 SW |
1129 | break; |
1130 | ||
1131 | r = -EPERM; | |
70abaded | 1132 | dev = kvm_device_from_filp(f.file); |
eb1e4f43 SW |
1133 | if (dev) |
1134 | r = kvmppc_mpic_connect_vcpu(dev, vcpu, cap->args[1]); | |
1135 | ||
70abaded | 1136 | fdput(f); |
eb1e4f43 | 1137 | break; |
dc83b8bc SW |
1138 | } |
1139 | #endif | |
5975a2e0 PM |
1140 | #ifdef CONFIG_KVM_XICS |
1141 | case KVM_CAP_IRQ_XICS: { | |
70abaded | 1142 | struct fd f; |
5975a2e0 PM |
1143 | struct kvm_device *dev; |
1144 | ||
1145 | r = -EBADF; | |
70abaded AV |
1146 | f = fdget(cap->args[0]); |
1147 | if (!f.file) | |
5975a2e0 PM |
1148 | break; |
1149 | ||
1150 | r = -EPERM; | |
70abaded | 1151 | dev = kvm_device_from_filp(f.file); |
5975a2e0 PM |
1152 | if (dev) |
1153 | r = kvmppc_xics_connect_vcpu(dev, vcpu, cap->args[1]); | |
1154 | ||
70abaded | 1155 | fdput(f); |
5975a2e0 PM |
1156 | break; |
1157 | } | |
1158 | #endif /* CONFIG_KVM_XICS */ | |
71fbfd5f AG |
1159 | default: |
1160 | r = -EINVAL; | |
1161 | break; | |
1162 | } | |
1163 | ||
af8f38b3 AG |
1164 | if (!r) |
1165 | r = kvmppc_sanity_check(vcpu); | |
1166 | ||
71fbfd5f AG |
1167 | return r; |
1168 | } | |
1169 | ||
34a75b0f PM |
1170 | bool kvm_arch_intc_initialized(struct kvm *kvm) |
1171 | { | |
1172 | #ifdef CONFIG_KVM_MPIC | |
1173 | if (kvm->arch.mpic) | |
1174 | return true; | |
1175 | #endif | |
1176 | #ifdef CONFIG_KVM_XICS | |
1177 | if (kvm->arch.xics) | |
1178 | return true; | |
1179 | #endif | |
1180 | return false; | |
1181 | } | |
1182 | ||
bbf45ba5 HB |
1183 | int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu, |
1184 | struct kvm_mp_state *mp_state) | |
1185 | { | |
1186 | return -EINVAL; | |
1187 | } | |
1188 | ||
1189 | int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu, | |
1190 | struct kvm_mp_state *mp_state) | |
1191 | { | |
1192 | return -EINVAL; | |
1193 | } | |
1194 | ||
1195 | long kvm_arch_vcpu_ioctl(struct file *filp, | |
1196 | unsigned int ioctl, unsigned long arg) | |
1197 | { | |
1198 | struct kvm_vcpu *vcpu = filp->private_data; | |
1199 | void __user *argp = (void __user *)arg; | |
1200 | long r; | |
1201 | ||
93736624 AK |
1202 | switch (ioctl) { |
1203 | case KVM_INTERRUPT: { | |
bbf45ba5 HB |
1204 | struct kvm_interrupt irq; |
1205 | r = -EFAULT; | |
1206 | if (copy_from_user(&irq, argp, sizeof(irq))) | |
93736624 | 1207 | goto out; |
bbf45ba5 | 1208 | r = kvm_vcpu_ioctl_interrupt(vcpu, &irq); |
93736624 | 1209 | goto out; |
bbf45ba5 | 1210 | } |
19483d14 | 1211 | |
71fbfd5f AG |
1212 | case KVM_ENABLE_CAP: |
1213 | { | |
1214 | struct kvm_enable_cap cap; | |
1215 | r = -EFAULT; | |
1216 | if (copy_from_user(&cap, argp, sizeof(cap))) | |
1217 | goto out; | |
1218 | r = kvm_vcpu_ioctl_enable_cap(vcpu, &cap); | |
1219 | break; | |
1220 | } | |
dc83b8bc | 1221 | |
e24ed81f AG |
1222 | case KVM_SET_ONE_REG: |
1223 | case KVM_GET_ONE_REG: | |
1224 | { | |
1225 | struct kvm_one_reg reg; | |
1226 | r = -EFAULT; | |
1227 | if (copy_from_user(®, argp, sizeof(reg))) | |
1228 | goto out; | |
1229 | if (ioctl == KVM_SET_ONE_REG) | |
1230 | r = kvm_vcpu_ioctl_set_one_reg(vcpu, ®); | |
1231 | else | |
1232 | r = kvm_vcpu_ioctl_get_one_reg(vcpu, ®); | |
1233 | break; | |
1234 | } | |
1235 | ||
bf7ca4bd | 1236 | #if defined(CONFIG_KVM_E500V2) || defined(CONFIG_KVM_E500MC) |
dc83b8bc SW |
1237 | case KVM_DIRTY_TLB: { |
1238 | struct kvm_dirty_tlb dirty; | |
1239 | r = -EFAULT; | |
1240 | if (copy_from_user(&dirty, argp, sizeof(dirty))) | |
1241 | goto out; | |
1242 | r = kvm_vcpu_ioctl_dirty_tlb(vcpu, &dirty); | |
1243 | break; | |
1244 | } | |
1245 | #endif | |
bbf45ba5 HB |
1246 | default: |
1247 | r = -EINVAL; | |
1248 | } | |
1249 | ||
1250 | out: | |
1251 | return r; | |
1252 | } | |
1253 | ||
5b1c1493 CO |
1254 | int kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf) |
1255 | { | |
1256 | return VM_FAULT_SIGBUS; | |
1257 | } | |
1258 | ||
15711e9c AG |
1259 | static int kvm_vm_ioctl_get_pvinfo(struct kvm_ppc_pvinfo *pvinfo) |
1260 | { | |
784bafac SY |
1261 | u32 inst_nop = 0x60000000; |
1262 | #ifdef CONFIG_KVM_BOOKE_HV | |
1263 | u32 inst_sc1 = 0x44000022; | |
2743103f AG |
1264 | pvinfo->hcall[0] = cpu_to_be32(inst_sc1); |
1265 | pvinfo->hcall[1] = cpu_to_be32(inst_nop); | |
1266 | pvinfo->hcall[2] = cpu_to_be32(inst_nop); | |
1267 | pvinfo->hcall[3] = cpu_to_be32(inst_nop); | |
784bafac | 1268 | #else |
15711e9c AG |
1269 | u32 inst_lis = 0x3c000000; |
1270 | u32 inst_ori = 0x60000000; | |
15711e9c AG |
1271 | u32 inst_sc = 0x44000002; |
1272 | u32 inst_imm_mask = 0xffff; | |
1273 | ||
1274 | /* | |
1275 | * The hypercall to get into KVM from within guest context is as | |
1276 | * follows: | |
1277 | * | |
1278 | * lis r0, r0, KVM_SC_MAGIC_R0@h | |
1279 | * ori r0, KVM_SC_MAGIC_R0@l | |
1280 | * sc | |
1281 | * nop | |
1282 | */ | |
2743103f AG |
1283 | pvinfo->hcall[0] = cpu_to_be32(inst_lis | ((KVM_SC_MAGIC_R0 >> 16) & inst_imm_mask)); |
1284 | pvinfo->hcall[1] = cpu_to_be32(inst_ori | (KVM_SC_MAGIC_R0 & inst_imm_mask)); | |
1285 | pvinfo->hcall[2] = cpu_to_be32(inst_sc); | |
1286 | pvinfo->hcall[3] = cpu_to_be32(inst_nop); | |
784bafac | 1287 | #endif |
15711e9c | 1288 | |
9202e076 LYB |
1289 | pvinfo->flags = KVM_PPC_PVINFO_FLAGS_EV_IDLE; |
1290 | ||
15711e9c AG |
1291 | return 0; |
1292 | } | |
1293 | ||
5efdb4be AG |
1294 | int kvm_vm_ioctl_irq_line(struct kvm *kvm, struct kvm_irq_level *irq_event, |
1295 | bool line_status) | |
1296 | { | |
1297 | if (!irqchip_in_kernel(kvm)) | |
1298 | return -ENXIO; | |
1299 | ||
1300 | irq_event->status = kvm_set_irq(kvm, KVM_USERSPACE_IRQ_SOURCE_ID, | |
1301 | irq_event->irq, irq_event->level, | |
1302 | line_status); | |
1303 | return 0; | |
1304 | } | |
1305 | ||
699a0ea0 PM |
1306 | |
1307 | static int kvm_vm_ioctl_enable_cap(struct kvm *kvm, | |
1308 | struct kvm_enable_cap *cap) | |
1309 | { | |
1310 | int r; | |
1311 | ||
1312 | if (cap->flags) | |
1313 | return -EINVAL; | |
1314 | ||
1315 | switch (cap->cap) { | |
1316 | #ifdef CONFIG_KVM_BOOK3S_64_HANDLER | |
1317 | case KVM_CAP_PPC_ENABLE_HCALL: { | |
1318 | unsigned long hcall = cap->args[0]; | |
1319 | ||
1320 | r = -EINVAL; | |
1321 | if (hcall > MAX_HCALL_OPCODE || (hcall & 3) || | |
1322 | cap->args[1] > 1) | |
1323 | break; | |
ae2113a4 PM |
1324 | if (!kvmppc_book3s_hcall_implemented(kvm, hcall)) |
1325 | break; | |
699a0ea0 PM |
1326 | if (cap->args[1]) |
1327 | set_bit(hcall / 4, kvm->arch.enabled_hcalls); | |
1328 | else | |
1329 | clear_bit(hcall / 4, kvm->arch.enabled_hcalls); | |
1330 | r = 0; | |
1331 | break; | |
1332 | } | |
1333 | #endif | |
1334 | default: | |
1335 | r = -EINVAL; | |
1336 | break; | |
1337 | } | |
1338 | ||
1339 | return r; | |
1340 | } | |
1341 | ||
bbf45ba5 HB |
1342 | long kvm_arch_vm_ioctl(struct file *filp, |
1343 | unsigned int ioctl, unsigned long arg) | |
1344 | { | |
5df554ad | 1345 | struct kvm *kvm __maybe_unused = filp->private_data; |
15711e9c | 1346 | void __user *argp = (void __user *)arg; |
bbf45ba5 HB |
1347 | long r; |
1348 | ||
1349 | switch (ioctl) { | |
15711e9c AG |
1350 | case KVM_PPC_GET_PVINFO: { |
1351 | struct kvm_ppc_pvinfo pvinfo; | |
d8cdddcd | 1352 | memset(&pvinfo, 0, sizeof(pvinfo)); |
15711e9c AG |
1353 | r = kvm_vm_ioctl_get_pvinfo(&pvinfo); |
1354 | if (copy_to_user(argp, &pvinfo, sizeof(pvinfo))) { | |
1355 | r = -EFAULT; | |
1356 | goto out; | |
1357 | } | |
1358 | ||
1359 | break; | |
1360 | } | |
699a0ea0 PM |
1361 | case KVM_ENABLE_CAP: |
1362 | { | |
1363 | struct kvm_enable_cap cap; | |
1364 | r = -EFAULT; | |
1365 | if (copy_from_user(&cap, argp, sizeof(cap))) | |
1366 | goto out; | |
1367 | r = kvm_vm_ioctl_enable_cap(kvm, &cap); | |
1368 | break; | |
1369 | } | |
f31e65e1 | 1370 | #ifdef CONFIG_PPC_BOOK3S_64 |
58ded420 AK |
1371 | case KVM_CREATE_SPAPR_TCE_64: { |
1372 | struct kvm_create_spapr_tce_64 create_tce_64; | |
1373 | ||
1374 | r = -EFAULT; | |
1375 | if (copy_from_user(&create_tce_64, argp, sizeof(create_tce_64))) | |
1376 | goto out; | |
1377 | if (create_tce_64.flags) { | |
1378 | r = -EINVAL; | |
1379 | goto out; | |
1380 | } | |
1381 | r = kvm_vm_ioctl_create_spapr_tce(kvm, &create_tce_64); | |
1382 | goto out; | |
1383 | } | |
54738c09 DG |
1384 | case KVM_CREATE_SPAPR_TCE: { |
1385 | struct kvm_create_spapr_tce create_tce; | |
58ded420 | 1386 | struct kvm_create_spapr_tce_64 create_tce_64; |
54738c09 DG |
1387 | |
1388 | r = -EFAULT; | |
1389 | if (copy_from_user(&create_tce, argp, sizeof(create_tce))) | |
1390 | goto out; | |
58ded420 AK |
1391 | |
1392 | create_tce_64.liobn = create_tce.liobn; | |
1393 | create_tce_64.page_shift = IOMMU_PAGE_SHIFT_4K; | |
1394 | create_tce_64.offset = 0; | |
1395 | create_tce_64.size = create_tce.window_size >> | |
1396 | IOMMU_PAGE_SHIFT_4K; | |
1397 | create_tce_64.flags = 0; | |
1398 | r = kvm_vm_ioctl_create_spapr_tce(kvm, &create_tce_64); | |
54738c09 DG |
1399 | goto out; |
1400 | } | |
5b74716e | 1401 | case KVM_PPC_GET_SMMU_INFO: { |
5b74716e | 1402 | struct kvm_ppc_smmu_info info; |
cbbc58d4 | 1403 | struct kvm *kvm = filp->private_data; |
5b74716e BH |
1404 | |
1405 | memset(&info, 0, sizeof(info)); | |
cbbc58d4 | 1406 | r = kvm->arch.kvm_ops->get_smmu_info(kvm, &info); |
5b74716e BH |
1407 | if (r >= 0 && copy_to_user(argp, &info, sizeof(info))) |
1408 | r = -EFAULT; | |
1409 | break; | |
1410 | } | |
8e591cb7 ME |
1411 | case KVM_PPC_RTAS_DEFINE_TOKEN: { |
1412 | struct kvm *kvm = filp->private_data; | |
1413 | ||
1414 | r = kvm_vm_ioctl_rtas_define_token(kvm, argp); | |
1415 | break; | |
1416 | } | |
cbbc58d4 AK |
1417 | default: { |
1418 | struct kvm *kvm = filp->private_data; | |
1419 | r = kvm->arch.kvm_ops->arch_vm_ioctl(filp, ioctl, arg); | |
1420 | } | |
3a167bea | 1421 | #else /* CONFIG_PPC_BOOK3S_64 */ |
bbf45ba5 | 1422 | default: |
367e1319 | 1423 | r = -ENOTTY; |
3a167bea | 1424 | #endif |
bbf45ba5 | 1425 | } |
15711e9c | 1426 | out: |
bbf45ba5 HB |
1427 | return r; |
1428 | } | |
1429 | ||
043cc4d7 SW |
1430 | static unsigned long lpid_inuse[BITS_TO_LONGS(KVMPPC_NR_LPIDS)]; |
1431 | static unsigned long nr_lpids; | |
1432 | ||
1433 | long kvmppc_alloc_lpid(void) | |
1434 | { | |
1435 | long lpid; | |
1436 | ||
1437 | do { | |
1438 | lpid = find_first_zero_bit(lpid_inuse, KVMPPC_NR_LPIDS); | |
1439 | if (lpid >= nr_lpids) { | |
1440 | pr_err("%s: No LPIDs free\n", __func__); | |
1441 | return -ENOMEM; | |
1442 | } | |
1443 | } while (test_and_set_bit(lpid, lpid_inuse)); | |
1444 | ||
1445 | return lpid; | |
1446 | } | |
2ba9f0d8 | 1447 | EXPORT_SYMBOL_GPL(kvmppc_alloc_lpid); |
043cc4d7 SW |
1448 | |
1449 | void kvmppc_claim_lpid(long lpid) | |
1450 | { | |
1451 | set_bit(lpid, lpid_inuse); | |
1452 | } | |
2ba9f0d8 | 1453 | EXPORT_SYMBOL_GPL(kvmppc_claim_lpid); |
043cc4d7 SW |
1454 | |
1455 | void kvmppc_free_lpid(long lpid) | |
1456 | { | |
1457 | clear_bit(lpid, lpid_inuse); | |
1458 | } | |
2ba9f0d8 | 1459 | EXPORT_SYMBOL_GPL(kvmppc_free_lpid); |
043cc4d7 SW |
1460 | |
1461 | void kvmppc_init_lpid(unsigned long nr_lpids_param) | |
1462 | { | |
1463 | nr_lpids = min_t(unsigned long, KVMPPC_NR_LPIDS, nr_lpids_param); | |
1464 | memset(lpid_inuse, 0, sizeof(lpid_inuse)); | |
1465 | } | |
2ba9f0d8 | 1466 | EXPORT_SYMBOL_GPL(kvmppc_init_lpid); |
043cc4d7 | 1467 | |
bbf45ba5 HB |
1468 | int kvm_arch_init(void *opaque) |
1469 | { | |
1470 | return 0; | |
1471 | } | |
1472 | ||
478d6686 | 1473 | EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_ppc_instr); |