arch/powerpc/kvm/book3s.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (C) 2009. SUSE Linux Products GmbH. All rights reserved.
   4  *
   5  * Authors:
   6  *    Alexander Graf <agraf@suse.de>
   7  *    Kevin Wolf <mail@kevin-wolf.de>
   8  *
   9  * Description:
  10  * This file is derived from arch/powerpc/kvm/44x.c,
  11  * by Hollis Blanchard <hollisb@us.ibm.com>.
  12  */
  13
  14 #include <linux/kvm_host.h>
  15 #include <linux/err.h>
  16 #include <linux/export.h>
  17 #include <linux/slab.h>
  18 #include <linux/module.h>
  19 #include <linux/miscdevice.h>
  20 #include <linux/gfp.h>
  21 #include <linux/sched.h>
  22 #include <linux/vmalloc.h>
  23 #include <linux/highmem.h>
  24
  25 #include <asm/reg.h>
  26 #include <asm/cputable.h>
  27 #include <asm/cacheflush.h>
  28 #include <linux/uaccess.h>
  29 #include <asm/io.h>
  30 #include <asm/kvm_ppc.h>
  31 #include <asm/kvm_book3s.h>
  32 #include <asm/mmu_context.h>
  33 #include <asm/page.h>
  34 #include <asm/xive.h>
  35
  36 #include "book3s.h"
  37 #include "trace.h"
  38
  39 /* #define EXIT_DEBUG */
  40
  41 const struct _kvm_stats_desc kvm_vm_stats_desc[] = {
  42         KVM_GENERIC_VM_STATS(),
  43         STATS_DESC_ICOUNTER(VM, num_2M_pages),
  44         STATS_DESC_ICOUNTER(VM, num_1G_pages)
  45 };
  46
  47 const struct kvm_stats_header kvm_vm_stats_header = {
  48         .name_size = KVM_STATS_NAME_SIZE,
  49         .num_desc = ARRAY_SIZE(kvm_vm_stats_desc),
  50         .id_offset = sizeof(struct kvm_stats_header),
  51         .desc_offset = sizeof(struct kvm_stats_header) + KVM_STATS_NAME_SIZE,
  52         .data_offset = sizeof(struct kvm_stats_header) + KVM_STATS_NAME_SIZE +
  53                        sizeof(kvm_vm_stats_desc),
  54 };
  55
  56 const struct _kvm_stats_desc kvm_vcpu_stats_desc[] = {
  57         KVM_GENERIC_VCPU_STATS(),
  58         STATS_DESC_COUNTER(VCPU, sum_exits),
  59         STATS_DESC_COUNTER(VCPU, mmio_exits),
  60         STATS_DESC_COUNTER(VCPU, signal_exits),
  61         STATS_DESC_COUNTER(VCPU, light_exits),
  62         STATS_DESC_COUNTER(VCPU, itlb_real_miss_exits),
  63         STATS_DESC_COUNTER(VCPU, itlb_virt_miss_exits),
  64         STATS_DESC_COUNTER(VCPU, dtlb_real_miss_exits),
  65         STATS_DESC_COUNTER(VCPU, dtlb_virt_miss_exits),
  66         STATS_DESC_COUNTER(VCPU, syscall_exits),
  67         STATS_DESC_COUNTER(VCPU, isi_exits),
  68         STATS_DESC_COUNTER(VCPU, dsi_exits),
  69         STATS_DESC_COUNTER(VCPU, emulated_inst_exits),
  70         STATS_DESC_COUNTER(VCPU, dec_exits),
  71         STATS_DESC_COUNTER(VCPU, ext_intr_exits),
  72         STATS_DESC_TIME_NSEC(VCPU, halt_wait_ns),
  73         STATS_DESC_COUNTER(VCPU, halt_successful_wait),
  74         STATS_DESC_COUNTER(VCPU, dbell_exits),
  75         STATS_DESC_COUNTER(VCPU, gdbell_exits),
  76         STATS_DESC_COUNTER(VCPU, ld),
  77         STATS_DESC_COUNTER(VCPU, st),
  78         STATS_DESC_COUNTER(VCPU, pf_storage),
  79         STATS_DESC_COUNTER(VCPU, pf_instruc),
  80         STATS_DESC_COUNTER(VCPU, sp_storage),
  81         STATS_DESC_COUNTER(VCPU, sp_instruc),
  82         STATS_DESC_COUNTER(VCPU, queue_intr),
  83         STATS_DESC_COUNTER(VCPU, ld_slow),
  84         STATS_DESC_COUNTER(VCPU, st_slow),
  85         STATS_DESC_COUNTER(VCPU, pthru_all),
  86         STATS_DESC_COUNTER(VCPU, pthru_host),
  87         STATS_DESC_COUNTER(VCPU, pthru_bad_aff)
  88 };
  89
  90 const struct kvm_stats_header kvm_vcpu_stats_header = {
  91         .name_size = KVM_STATS_NAME_SIZE,
  92         .num_desc = ARRAY_SIZE(kvm_vcpu_stats_desc),
  93         .id_offset = sizeof(struct kvm_stats_header),
  94         .desc_offset = sizeof(struct kvm_stats_header) + KVM_STATS_NAME_SIZE,
  95         .data_offset = sizeof(struct kvm_stats_header) + KVM_STATS_NAME_SIZE +
  96                        sizeof(kvm_vcpu_stats_desc),
  97 };
  98
  99 static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu,
 100                         unsigned long pending_now, unsigned long old_pending)
 101 {
 102         if (is_kvmppc_hv_enabled(vcpu->kvm))
 103                 return;
 104         if (pending_now)
 105                 kvmppc_set_int_pending(vcpu, 1);
 106         else if (old_pending)
 107                 kvmppc_set_int_pending(vcpu, 0);
 108 }
 109
 110 static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu)
 111 {
 112         ulong crit_raw;
 113         ulong crit_r1;
 114         bool crit;
 115
 116         if (is_kvmppc_hv_enabled(vcpu->kvm))
 117                 return false;
 118
 119         crit_raw = kvmppc_get_critical(vcpu);
 120         crit_r1 = kvmppc_get_gpr(vcpu, 1);
 121
 122         /* Truncate crit indicators in 32 bit mode */
 123         if (!(kvmppc_get_msr(vcpu) & MSR_SF)) {
 124                 crit_raw &= 0xffffffff;
 125                 crit_r1 &= 0xffffffff;
 126         }
 127
 128         /* Critical section when crit == r1 */
 129         crit = (crit_raw == crit_r1);
 130         /* ... and we're in supervisor mode */
 131         crit = crit && !(kvmppc_get_msr(vcpu) & MSR_PR);
 132
 133         return crit;
 134 }
 135
 136 void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags)
 137 {
 138         vcpu->kvm->arch.kvm_ops->inject_interrupt(vcpu, vec, flags);
 139 }
 140
 141 static int kvmppc_book3s_vec2irqprio(unsigned int vec)
 142 {
 143         unsigned int prio;
 144
 145         switch (vec) {
 146         case 0x100: prio = BOOK3S_IRQPRIO_SYSTEM_RESET;         break;
 147         case 0x200: prio = BOOK3S_IRQPRIO_MACHINE_CHECK;        break;
 148         case 0x300: prio = BOOK3S_IRQPRIO_DATA_STORAGE;         break;
 149         case 0x380: prio = BOOK3S_IRQPRIO_DATA_SEGMENT;         break;
 150         case 0x400: prio = BOOK3S_IRQPRIO_INST_STORAGE;         break;
 151         case 0x480: prio = BOOK3S_IRQPRIO_INST_SEGMENT;         break;
 152         case 0x500: prio = BOOK3S_IRQPRIO_EXTERNAL;             break;
 153         case 0x600: prio = BOOK3S_IRQPRIO_ALIGNMENT;            break;
 154         case 0x700: prio = BOOK3S_IRQPRIO_PROGRAM;              break;
 155         case 0x800: prio = BOOK3S_IRQPRIO_FP_UNAVAIL;           break;
 156         case 0x900: prio = BOOK3S_IRQPRIO_DECREMENTER;          break;
 157         case 0xc00: prio = BOOK3S_IRQPRIO_SYSCALL;              break;
 158         case 0xd00: prio = BOOK3S_IRQPRIO_DEBUG;                break;
 159         case 0xf20: prio = BOOK3S_IRQPRIO_ALTIVEC;              break;
 160         case 0xf40: prio = BOOK3S_IRQPRIO_VSX;                  break;
 161         case 0xf60: prio = BOOK3S_IRQPRIO_FAC_UNAVAIL;          break;
 162         default:    prio = BOOK3S_IRQPRIO_MAX;                  break;
 163         }
 164
 165         return prio;
 166 }
 167
 168 void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu *vcpu,
 169                                           unsigned int vec)
 170 {
 171         unsigned long old_pending = vcpu->arch.pending_exceptions;
 172
 173         clear_bit(kvmppc_book3s_vec2irqprio(vec),
 174                   &vcpu->arch.pending_exceptions);
 175
 176         kvmppc_update_int_pending(vcpu, vcpu->arch.pending_exceptions,
 177                                   old_pending);
 178 }
 179
 180 void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec)
 181 {
 182         vcpu->stat.queue_intr++;
 183
 184         set_bit(kvmppc_book3s_vec2irqprio(vec),
 185                 &vcpu->arch.pending_exceptions);
 186 #ifdef EXIT_DEBUG
 187         printk(KERN_INFO "Queueing interrupt %x\n", vec);
 188 #endif
 189 }
 190 EXPORT_SYMBOL_GPL(kvmppc_book3s_queue_irqprio);
 191
 192 void kvmppc_core_queue_machine_check(struct kvm_vcpu *vcpu, ulong flags)
 193 {
 194         /* might as well deliver this straight away */
 195         kvmppc_inject_interrupt(vcpu, BOOK3S_INTERRUPT_MACHINE_CHECK, flags);
 196 }
 197 EXPORT_SYMBOL_GPL(kvmppc_core_queue_machine_check);
 198
 199 void kvmppc_core_queue_syscall(struct kvm_vcpu *vcpu)
 200 {
 201         kvmppc_inject_interrupt(vcpu, BOOK3S_INTERRUPT_SYSCALL, 0);
 202 }
 203 EXPORT_SYMBOL(kvmppc_core_queue_syscall);
 204
 205 void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags)
 206 {
 207         /* might as well deliver this straight away */
 208         kvmppc_inject_interrupt(vcpu, BOOK3S_INTERRUPT_PROGRAM, flags);
 209 }
 210 EXPORT_SYMBOL_GPL(kvmppc_core_queue_program);
 211
 212 void kvmppc_core_queue_fpunavail(struct kvm_vcpu *vcpu)
 213 {
 214         /* might as well deliver this straight away */
 215         kvmppc_inject_interrupt(vcpu, BOOK3S_INTERRUPT_FP_UNAVAIL, 0);
 216 }
 217
 218 void kvmppc_core_queue_vec_unavail(struct kvm_vcpu *vcpu)
 219 {
 220         /* might as well deliver this straight away */
 221         kvmppc_inject_interrupt(vcpu, BOOK3S_INTERRUPT_ALTIVEC, 0);
 222 }
 223
 224 void kvmppc_core_queue_vsx_unavail(struct kvm_vcpu *vcpu)
 225 {
 226         /* might as well deliver this straight away */
 227         kvmppc_inject_interrupt(vcpu, BOOK3S_INTERRUPT_VSX, 0);
 228 }
 229
 230 void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu)
 231 {
 232         kvmppc_book3s_queue_irqprio(vcpu, BOOK3S_INTERRUPT_DECREMENTER);
 233 }
 234 EXPORT_SYMBOL_GPL(kvmppc_core_queue_dec);
 235
 236 int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu)
 237 {
 238         return test_bit(BOOK3S_IRQPRIO_DECREMENTER, &vcpu->arch.pending_exceptions);
 239 }
 240 EXPORT_SYMBOL_GPL(kvmppc_core_pending_dec);
 241
 242 void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu)
 243 {
 244         kvmppc_book3s_dequeue_irqprio(vcpu, BOOK3S_INTERRUPT_DECREMENTER);
 245 }
 246 EXPORT_SYMBOL_GPL(kvmppc_core_dequeue_dec);
 247
 248 void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,
 249                                 struct kvm_interrupt *irq)
 250 {
 251         /*
 252          * This case (KVM_INTERRUPT_SET) should never actually arise for
 253          * a pseries guest (because pseries guests expect their interrupt
 254          * controllers to continue asserting an external interrupt request
 255          * until it is acknowledged at the interrupt controller), but is
 256          * included to avoid ABI breakage and potentially for other
 257          * sorts of guest.
 258          *
 259          * There is a subtlety here: HV KVM does not test the
 260          * external_oneshot flag in the code that synthesizes
 261          * external interrupts for the guest just before entering
 262          * the guest.  That is OK even if userspace did do a
 263          * KVM_INTERRUPT_SET on a pseries guest vcpu, because the
 264          * caller (kvm_vcpu_ioctl_interrupt) does a kvm_vcpu_kick()
 265          * which ends up doing a smp_send_reschedule(), which will
 266          * pull the guest all the way out to the host, meaning that
 267          * we will call kvmppc_core_prepare_to_enter() before entering
 268          * the guest again, and that will handle the external_oneshot
 269          * flag correctly.
 270          */
 271         if (irq->irq == KVM_INTERRUPT_SET)
 272                 vcpu->arch.external_oneshot = 1;
 273
 274         kvmppc_book3s_queue_irqprio(vcpu, BOOK3S_INTERRUPT_EXTERNAL);
 275 }
 276
 277 void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu)
 278 {
 279         kvmppc_book3s_dequeue_irqprio(vcpu, BOOK3S_INTERRUPT_EXTERNAL);
 280 }
 281
 282 void kvmppc_core_queue_data_storage(struct kvm_vcpu *vcpu, ulong dar,
 283                                     ulong flags)
 284 {
 285         kvmppc_set_dar(vcpu, dar);
 286         kvmppc_set_dsisr(vcpu, flags);
 287         kvmppc_inject_interrupt(vcpu, BOOK3S_INTERRUPT_DATA_STORAGE, 0);
 288 }
 289 EXPORT_SYMBOL_GPL(kvmppc_core_queue_data_storage);
 290
 291 void kvmppc_core_queue_inst_storage(struct kvm_vcpu *vcpu, ulong flags)
 292 {
 293         kvmppc_inject_interrupt(vcpu, BOOK3S_INTERRUPT_INST_STORAGE, flags);
 294 }
 295 EXPORT_SYMBOL_GPL(kvmppc_core_queue_inst_storage);
 296
 297 static int kvmppc_book3s_irqprio_deliver(struct kvm_vcpu *vcpu,
 298                                          unsigned int priority)
 299 {
 300         int deliver = 1;
 301         int vec = 0;
 302         bool crit = kvmppc_critical_section(vcpu);
 303
 304         switch (priority) {
 305         case BOOK3S_IRQPRIO_DECREMENTER:
 306                 deliver = (kvmppc_get_msr(vcpu) & MSR_EE) && !crit;
 307                 vec = BOOK3S_INTERRUPT_DECREMENTER;
 308                 break;
 309         case BOOK3S_IRQPRIO_EXTERNAL:
 310                 deliver = (kvmppc_get_msr(vcpu) & MSR_EE) && !crit;
 311                 vec = BOOK3S_INTERRUPT_EXTERNAL;
 312                 break;
 313         case BOOK3S_IRQPRIO_SYSTEM_RESET:
 314                 vec = BOOK3S_INTERRUPT_SYSTEM_RESET;
 315                 break;
 316         case BOOK3S_IRQPRIO_MACHINE_CHECK:
 317                 vec = BOOK3S_INTERRUPT_MACHINE_CHECK;
 318                 break;
 319         case BOOK3S_IRQPRIO_DATA_STORAGE:
 320                 vec = BOOK3S_INTERRUPT_DATA_STORAGE;
 321                 break;
 322         case BOOK3S_IRQPRIO_INST_STORAGE:
 323                 vec = BOOK3S_INTERRUPT_INST_STORAGE;
 324                 break;
 325         case BOOK3S_IRQPRIO_DATA_SEGMENT:
 326                 vec = BOOK3S_INTERRUPT_DATA_SEGMENT;
 327                 break;
 328         case BOOK3S_IRQPRIO_INST_SEGMENT:
 329                 vec = BOOK3S_INTERRUPT_INST_SEGMENT;
 330                 break;
 331         case BOOK3S_IRQPRIO_ALIGNMENT:
 332                 vec = BOOK3S_INTERRUPT_ALIGNMENT;
 333                 break;
 334         case BOOK3S_IRQPRIO_PROGRAM:
 335                 vec = BOOK3S_INTERRUPT_PROGRAM;
 336                 break;
 337         case BOOK3S_IRQPRIO_VSX:
 338                 vec = BOOK3S_INTERRUPT_VSX;
 339                 break;
 340         case BOOK3S_IRQPRIO_ALTIVEC:
 341                 vec = BOOK3S_INTERRUPT_ALTIVEC;
 342                 break;
 343         case BOOK3S_IRQPRIO_FP_UNAVAIL:
 344                 vec = BOOK3S_INTERRUPT_FP_UNAVAIL;
 345                 break;
 346         case BOOK3S_IRQPRIO_SYSCALL:
 347                 vec = BOOK3S_INTERRUPT_SYSCALL;
 348                 break;
 349         case BOOK3S_IRQPRIO_DEBUG:
 350                 vec = BOOK3S_INTERRUPT_TRACE;
 351                 break;
 352         case BOOK3S_IRQPRIO_PERFORMANCE_MONITOR:
 353                 vec = BOOK3S_INTERRUPT_PERFMON;
 354                 break;
 355         case BOOK3S_IRQPRIO_FAC_UNAVAIL:
 356                 vec = BOOK3S_INTERRUPT_FAC_UNAVAIL;
 357                 break;
 358         default:
 359                 deliver = 0;
 360                 printk(KERN_ERR "KVM: Unknown interrupt: 0x%x\n", priority);
 361                 break;
 362         }
 363
 364 #if 0
 365         printk(KERN_INFO "Deliver interrupt 0x%x? %x\n", vec, deliver);
 366 #endif
 367
 368         if (deliver)
 369                 kvmppc_inject_interrupt(vcpu, vec, 0);
 370
 371         return deliver;
 372 }
 373
 374 /*
 375  * This function determines if an irqprio should be cleared once issued.
 376  */
 377 static bool clear_irqprio(struct kvm_vcpu *vcpu, unsigned int priority)
 378 {
 379         switch (priority) {
 380                 case BOOK3S_IRQPRIO_DECREMENTER:
 381                         /* DEC interrupts get cleared by mtdec */
 382                         return false;
 383                 case BOOK3S_IRQPRIO_EXTERNAL:
 384                         /*
 385                          * External interrupts get cleared by userspace
 386                          * except when set by the KVM_INTERRUPT ioctl with
 387                          * KVM_INTERRUPT_SET (not KVM_INTERRUPT_SET_LEVEL).
 388                          */
 389                         if (vcpu->arch.external_oneshot) {
 390                                 vcpu->arch.external_oneshot = 0;
 391                                 return true;
 392                         }
 393                         return false;
 394         }
 395
 396         return true;
 397 }
 398
 399 int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu)
 400 {
 401         unsigned long *pending = &vcpu->arch.pending_exceptions;
 402         unsigned long old_pending = vcpu->arch.pending_exceptions;
 403         unsigned int priority;
 404
 405 #ifdef EXIT_DEBUG
 406         if (vcpu->arch.pending_exceptions)
 407                 printk(KERN_EMERG "KVM: Check pending: %lx\n", vcpu->arch.pending_exceptions);
 408 #endif
 409         priority = __ffs(*pending);
 410         while (priority < BOOK3S_IRQPRIO_MAX) {
 411                 if (kvmppc_book3s_irqprio_deliver(vcpu, priority) &&
 412                     clear_irqprio(vcpu, priority)) {
 413                         clear_bit(priority, &vcpu->arch.pending_exceptions);
 414                         break;
 415                 }
 416
 417                 priority = find_next_bit(pending,
 418                                          BITS_PER_BYTE * sizeof(*pending),
 419                                          priority + 1);
 420         }
 421
 422         /* Tell the guest about our interrupt status */
 423         kvmppc_update_int_pending(vcpu, *pending, old_pending);
 424
 425         return 0;
 426 }
 427 EXPORT_SYMBOL_GPL(kvmppc_core_prepare_to_enter);
 428
 429 kvm_pfn_t kvmppc_gpa_to_pfn(struct kvm_vcpu *vcpu, gpa_t gpa, bool writing,
 430                         bool *writable)
 431 {
 432         ulong mp_pa = vcpu->arch.magic_page_pa & KVM_PAM;
 433         gfn_t gfn = gpa >> PAGE_SHIFT;
 434
 435         if (!(kvmppc_get_msr(vcpu) & MSR_SF))
 436                 mp_pa = (uint32_t)mp_pa;
 437
 438         /* Magic page override */
 439         gpa &= ~0xFFFULL;
 440         if (unlikely(mp_pa) && unlikely((gpa & KVM_PAM) == mp_pa)) {
 441                 ulong shared_page = ((ulong)vcpu->arch.shared) & PAGE_MASK;
 442                 kvm_pfn_t pfn;
 443
 444                 pfn = (kvm_pfn_t)virt_to_phys((void*)shared_page) >> PAGE_SHIFT;
 445                 get_page(pfn_to_page(pfn));
 446                 if (writable)
 447                         *writable = true;
 448                 return pfn;
 449         }
 450
 451         return gfn_to_pfn_prot(vcpu->kvm, gfn, writing, writable);
 452 }
 453 EXPORT_SYMBOL_GPL(kvmppc_gpa_to_pfn);
 454
 455 int kvmppc_xlate(struct kvm_vcpu *vcpu, ulong eaddr, enum xlate_instdata xlid,
 456                  enum xlate_readwrite xlrw, struct kvmppc_pte *pte)
 457 {
 458         bool data = (xlid == XLATE_DATA);
 459         bool iswrite = (xlrw == XLATE_WRITE);
 460         int relocated = (kvmppc_get_msr(vcpu) & (data ? MSR_DR : MSR_IR));
 461         int r;
 462
 463         if (relocated) {
 464                 r = vcpu->arch.mmu.xlate(vcpu, eaddr, pte, data, iswrite);
 465         } else {
 466                 pte->eaddr = eaddr;
 467                 pte->raddr = eaddr & KVM_PAM;
 468                 pte->vpage = VSID_REAL | eaddr >> 12;
 469                 pte->may_read = true;
 470                 pte->may_write = true;
 471                 pte->may_execute = true;
 472                 r = 0;
 473
 474                 if ((kvmppc_get_msr(vcpu) & (MSR_IR | MSR_DR)) == MSR_DR &&
 475                     !data) {
 476                         if ((vcpu->arch.hflags & BOOK3S_HFLAG_SPLIT_HACK) &&
 477                             ((eaddr & SPLIT_HACK_MASK) == SPLIT_HACK_OFFS))
 478                         pte->raddr &= ~SPLIT_HACK_MASK;
 479                 }
 480         }
 481
 482         return r;
 483 }
 484
 485 int kvmppc_load_last_inst(struct kvm_vcpu *vcpu,
 486                 enum instruction_fetch_type type, u32 *inst)
 487 {
 488         ulong pc = kvmppc_get_pc(vcpu);
 489         int r;
 490
 491         if (type == INST_SC)
 492                 pc -= 4;
 493
 494         r = kvmppc_ld(vcpu, &pc, sizeof(u32), inst, false);
 495         if (r == EMULATE_DONE)
 496                 return r;
 497         else
 498                 return EMULATE_AGAIN;
 499 }
 500 EXPORT_SYMBOL_GPL(kvmppc_load_last_inst);
 501
 502 int kvmppc_subarch_vcpu_init(struct kvm_vcpu *vcpu)
 503 {
 504         return 0;
 505 }
 506
 507 void kvmppc_subarch_vcpu_uninit(struct kvm_vcpu *vcpu)
 508 {
 509 }
 510
 511 int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
 512                                   struct kvm_sregs *sregs)
 513 {
 514         int ret;
 515
 516         vcpu_load(vcpu);
 517         ret = vcpu->kvm->arch.kvm_ops->get_sregs(vcpu, sregs);
 518         vcpu_put(vcpu);
 519
 520         return ret;
 521 }
 522
 523 int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
 524                                   struct kvm_sregs *sregs)
 525 {
 526         int ret;
 527
 528         vcpu_load(vcpu);
 529         ret = vcpu->kvm->arch.kvm_ops->set_sregs(vcpu, sregs);
 530         vcpu_put(vcpu);
 531
 532         return ret;
 533 }
 534
 535 int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
 536 {
 537         int i;
 538
 539         regs->pc = kvmppc_get_pc(vcpu);
 540         regs->cr = kvmppc_get_cr(vcpu);
 541         regs->ctr = kvmppc_get_ctr(vcpu);
 542         regs->lr = kvmppc_get_lr(vcpu);
 543         regs->xer = kvmppc_get_xer(vcpu);
 544         regs->msr = kvmppc_get_msr(vcpu);
 545         regs->srr0 = kvmppc_get_srr0(vcpu);
 546         regs->srr1 = kvmppc_get_srr1(vcpu);
 547         regs->pid = vcpu->arch.pid;
 548         regs->sprg0 = kvmppc_get_sprg0(vcpu);
 549         regs->sprg1 = kvmppc_get_sprg1(vcpu);
 550         regs->sprg2 = kvmppc_get_sprg2(vcpu);
 551         regs->sprg3 = kvmppc_get_sprg3(vcpu);
 552         regs->sprg4 = kvmppc_get_sprg4(vcpu);
 553         regs->sprg5 = kvmppc_get_sprg5(vcpu);
 554         regs->sprg6 = kvmppc_get_sprg6(vcpu);
 555         regs->sprg7 = kvmppc_get_sprg7(vcpu);
 556
 557         for (i = 0; i < ARRAY_SIZE(regs->gpr); i++)
 558                 regs->gpr[i] = kvmppc_get_gpr(vcpu, i);
 559
 560         return 0;
 561 }
 562
 563 int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
 564 {
 565         int i;
 566
 567         kvmppc_set_pc(vcpu, regs->pc);
 568         kvmppc_set_cr(vcpu, regs->cr);
 569         kvmppc_set_ctr(vcpu, regs->ctr);
 570         kvmppc_set_lr(vcpu, regs->lr);
 571         kvmppc_set_xer(vcpu, regs->xer);
 572         kvmppc_set_msr(vcpu, regs->msr);
 573         kvmppc_set_srr0(vcpu, regs->srr0);
 574         kvmppc_set_srr1(vcpu, regs->srr1);
 575         kvmppc_set_sprg0(vcpu, regs->sprg0);
 576         kvmppc_set_sprg1(vcpu, regs->sprg1);
 577         kvmppc_set_sprg2(vcpu, regs->sprg2);
 578         kvmppc_set_sprg3(vcpu, regs->sprg3);
 579         kvmppc_set_sprg4(vcpu, regs->sprg4);
 580         kvmppc_set_sprg5(vcpu, regs->sprg5);
 581         kvmppc_set_sprg6(vcpu, regs->sprg6);
 582         kvmppc_set_sprg7(vcpu, regs->sprg7);
 583
 584         for (i = 0; i < ARRAY_SIZE(regs->gpr); i++)
 585                 kvmppc_set_gpr(vcpu, i, regs->gpr[i]);
 586
 587         return 0;
 588 }
 589
 590 int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
 591 {
 592         return -EOPNOTSUPP;
 593 }
 594
 595 int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
 596 {
 597         return -EOPNOTSUPP;
 598 }
 599
 600 int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id,
 601                         union kvmppc_one_reg *val)
 602 {
 603         int r = 0;
 604         long int i;
 605
 606         r = vcpu->kvm->arch.kvm_ops->get_one_reg(vcpu, id, val);
 607         if (r == -EINVAL) {
 608                 r = 0;
 609                 switch (id) {
 610                 case KVM_REG_PPC_DAR:
 611                         *val = get_reg_val(id, kvmppc_get_dar(vcpu));
 612                         break;
 613                 case KVM_REG_PPC_DSISR:
 614                         *val = get_reg_val(id, kvmppc_get_dsisr(vcpu));
 615                         break;
 616                 case KVM_REG_PPC_FPR0 ... KVM_REG_PPC_FPR31:
 617                         i = id - KVM_REG_PPC_FPR0;
 618                         *val = get_reg_val(id, VCPU_FPR(vcpu, i));
 619                         break;
 620                 case KVM_REG_PPC_FPSCR:
 621                         *val = get_reg_val(id, vcpu->arch.fp.fpscr);
 622                         break;
 623 #ifdef CONFIG_VSX
 624                 case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31:
 625                         if (cpu_has_feature(CPU_FTR_VSX)) {
 626                                 i = id - KVM_REG_PPC_VSR0;
 627                                 val->vsxval[0] = vcpu->arch.fp.fpr[i][0];
 628                                 val->vsxval[1] = vcpu->arch.fp.fpr[i][1];
 629                         } else {
 630                                 r = -ENXIO;
 631                         }
 632                         break;
 633 #endif /* CONFIG_VSX */
 634                 case KVM_REG_PPC_DEBUG_INST:
 635                         *val = get_reg_val(id, INS_TW);
 636                         break;
 637 #ifdef CONFIG_KVM_XICS
 638                 case KVM_REG_PPC_ICP_STATE:
 639                         if (!vcpu->arch.icp && !vcpu->arch.xive_vcpu) {
 640                                 r = -ENXIO;
 641                                 break;
 642                         }
 643                         if (xics_on_xive())
 644                                 *val = get_reg_val(id, kvmppc_xive_get_icp(vcpu));
 645                         else
 646                                 *val = get_reg_val(id, kvmppc_xics_get_icp(vcpu));
 647                         break;
 648 #endif /* CONFIG_KVM_XICS */
 649 #ifdef CONFIG_KVM_XIVE
 650                 case KVM_REG_PPC_VP_STATE:
 651                         if (!vcpu->arch.xive_vcpu) {
 652                                 r = -ENXIO;
 653                                 break;
 654                         }
 655                         if (xive_enabled())
 656                                 r = kvmppc_xive_native_get_vp(vcpu, val);
 657                         else
 658                                 r = -ENXIO;
 659                         break;
 660 #endif /* CONFIG_KVM_XIVE */
 661                 case KVM_REG_PPC_FSCR:
 662                         *val = get_reg_val(id, vcpu->arch.fscr);
 663                         break;
 664                 case KVM_REG_PPC_TAR:
 665                         *val = get_reg_val(id, vcpu->arch.tar);
 666                         break;
 667                 case KVM_REG_PPC_EBBHR:
 668                         *val = get_reg_val(id, vcpu->arch.ebbhr);
 669                         break;
 670                 case KVM_REG_PPC_EBBRR:
 671                         *val = get_reg_val(id, vcpu->arch.ebbrr);
 672                         break;
 673                 case KVM_REG_PPC_BESCR:
 674                         *val = get_reg_val(id, vcpu->arch.bescr);
 675                         break;
 676                 case KVM_REG_PPC_IC:
 677                         *val = get_reg_val(id, vcpu->arch.ic);
 678                         break;
 679                 default:
 680                         r = -EINVAL;
 681                         break;
 682                 }
 683         }
 684
 685         return r;
 686 }
 687
 688 int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id,
 689                         union kvmppc_one_reg *val)
 690 {
 691         int r = 0;
 692         long int i;
 693
 694         r = vcpu->kvm->arch.kvm_ops->set_one_reg(vcpu, id, val);
 695         if (r == -EINVAL) {
 696                 r = 0;
 697                 switch (id) {
 698                 case KVM_REG_PPC_DAR:
 699                         kvmppc_set_dar(vcpu, set_reg_val(id, *val));
 700                         break;
 701                 case KVM_REG_PPC_DSISR:
 702                         kvmppc_set_dsisr(vcpu, set_reg_val(id, *val));
 703                         break;
 704                 case KVM_REG_PPC_FPR0 ... KVM_REG_PPC_FPR31:
 705                         i = id - KVM_REG_PPC_FPR0;
 706                         VCPU_FPR(vcpu, i) = set_reg_val(id, *val);
 707                         break;
 708                 case KVM_REG_PPC_FPSCR:
 709                         vcpu->arch.fp.fpscr = set_reg_val(id, *val);
 710                         break;
 711 #ifdef CONFIG_VSX
 712                 case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31:
 713                         if (cpu_has_feature(CPU_FTR_VSX)) {
 714                                 i = id - KVM_REG_PPC_VSR0;
 715                                 vcpu->arch.fp.fpr[i][0] = val->vsxval[0];
 716                                 vcpu->arch.fp.fpr[i][1] = val->vsxval[1];
 717                         } else {
 718                                 r = -ENXIO;
 719                         }
 720                         break;
 721 #endif /* CONFIG_VSX */
 722 #ifdef CONFIG_KVM_XICS
 723                 case KVM_REG_PPC_ICP_STATE:
 724                         if (!vcpu->arch.icp && !vcpu->arch.xive_vcpu) {
 725                                 r = -ENXIO;
 726                                 break;
 727                         }
 728                         if (xics_on_xive())
 729                                 r = kvmppc_xive_set_icp(vcpu, set_reg_val(id, *val));
 730                         else
 731                                 r = kvmppc_xics_set_icp(vcpu, set_reg_val(id, *val));
 732                         break;
 733 #endif /* CONFIG_KVM_XICS */
 734 #ifdef CONFIG_KVM_XIVE
 735                 case KVM_REG_PPC_VP_STATE:
 736                         if (!vcpu->arch.xive_vcpu) {
 737                                 r = -ENXIO;
 738                                 break;
 739                         }
 740                         if (xive_enabled())
 741                                 r = kvmppc_xive_native_set_vp(vcpu, val);
 742                         else
 743                                 r = -ENXIO;
 744                         break;
 745 #endif /* CONFIG_KVM_XIVE */
 746                 case KVM_REG_PPC_FSCR:
 747                         vcpu->arch.fscr = set_reg_val(id, *val);
 748                         break;
 749                 case KVM_REG_PPC_TAR:
 750                         vcpu->arch.tar = set_reg_val(id, *val);
 751                         break;
 752                 case KVM_REG_PPC_EBBHR:
 753                         vcpu->arch.ebbhr = set_reg_val(id, *val);
 754                         break;
 755                 case KVM_REG_PPC_EBBRR:
 756                         vcpu->arch.ebbrr = set_reg_val(id, *val);
 757                         break;
 758                 case KVM_REG_PPC_BESCR:
 759                         vcpu->arch.bescr = set_reg_val(id, *val);
 760                         break;
 761                 case KVM_REG_PPC_IC:
 762                         vcpu->arch.ic = set_reg_val(id, *val);
 763                         break;
 764                 default:
 765                         r = -EINVAL;
 766                         break;
 767                 }
 768         }
 769
 770         return r;
 771 }
 772
 773 void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 774 {
 775         vcpu->kvm->arch.kvm_ops->vcpu_load(vcpu, cpu);
 776 }
 777
 778 void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu)
 779 {
 780         vcpu->kvm->arch.kvm_ops->vcpu_put(vcpu);
 781 }
 782
 783 void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 msr)
 784 {
 785         vcpu->kvm->arch.kvm_ops->set_msr(vcpu, msr);
 786 }
 787 EXPORT_SYMBOL_GPL(kvmppc_set_msr);
 788
 789 int kvmppc_vcpu_run(struct kvm_vcpu *vcpu)
 790 {
 791         return vcpu->kvm->arch.kvm_ops->vcpu_run(vcpu);
 792 }
 793
 794 int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
 795                                   struct kvm_translation *tr)
 796 {
 797         return 0;
 798 }
 799
 800 int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
 801                                         struct kvm_guest_debug *dbg)
 802 {
 803         vcpu_load(vcpu);
 804         vcpu->guest_debug = dbg->control;
 805         vcpu_put(vcpu);
 806         return 0;
 807 }
 808
 809 void kvmppc_decrementer_func(struct kvm_vcpu *vcpu)
 810 {
 811         kvmppc_core_queue_dec(vcpu);
 812         kvm_vcpu_kick(vcpu);
 813 }
 814
 815 int kvmppc_core_vcpu_create(struct kvm_vcpu *vcpu)
 816 {
 817         return vcpu->kvm->arch.kvm_ops->vcpu_create(vcpu);
 818 }
 819
 820 void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
 821 {
 822         vcpu->kvm->arch.kvm_ops->vcpu_free(vcpu);
 823 }
 824
 825 int kvmppc_core_check_requests(struct kvm_vcpu *vcpu)
 826 {
 827         return vcpu->kvm->arch.kvm_ops->check_requests(vcpu);
 828 }
 829
 830 void kvm_arch_sync_dirty_log(struct kvm *kvm, struct kvm_memory_slot *memslot)
 831 {
 832
 833 }
 834
 835 int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log *log)
 836 {
 837         return kvm->arch.kvm_ops->get_dirty_log(kvm, log);
 838 }
 839
 840 void kvmppc_core_free_memslot(struct kvm *kvm, struct kvm_memory_slot *slot)
 841 {
 842         kvm->arch.kvm_ops->free_memslot(slot);
 843 }
 844
 845 void kvmppc_core_flush_memslot(struct kvm *kvm, struct kvm_memory_slot *memslot)
 846 {
 847         kvm->arch.kvm_ops->flush_memslot(kvm, memslot);
 848 }
 849
 850 int kvmppc_core_prepare_memory_region(struct kvm *kvm,
 851                                 struct kvm_memory_slot *memslot,
 852                                 const struct kvm_userspace_memory_region *mem,
 853                                 enum kvm_mr_change change)
 854 {
 855         return kvm->arch.kvm_ops->prepare_memory_region(kvm, memslot, mem,
 856                                                         change);
 857 }
 858
 859 void kvmppc_core_commit_memory_region(struct kvm *kvm,
 860                                 const struct kvm_userspace_memory_region *mem,
 861                                 const struct kvm_memory_slot *old,
 862                                 const struct kvm_memory_slot *new,
 863                                 enum kvm_mr_change change)
 864 {
 865         kvm->arch.kvm_ops->commit_memory_region(kvm, mem, old, new, change);
 866 }
 867
 868 bool kvm_unmap_gfn_range(struct kvm *kvm, struct kvm_gfn_range *range)
 869 {
 870         return kvm->arch.kvm_ops->unmap_gfn_range(kvm, range);
 871 }
 872
 873 bool kvm_age_gfn(struct kvm *kvm, struct kvm_gfn_range *range)
 874 {
 875         return kvm->arch.kvm_ops->age_gfn(kvm, range);
 876 }
 877
 878 bool kvm_test_age_gfn(struct kvm *kvm, struct kvm_gfn_range *range)
 879 {
 880         return kvm->arch.kvm_ops->test_age_gfn(kvm, range);
 881 }
 882
 883 bool kvm_set_spte_gfn(struct kvm *kvm, struct kvm_gfn_range *range)
 884 {
 885         return kvm->arch.kvm_ops->set_spte_gfn(kvm, range);
 886 }
 887
 888 int kvmppc_core_init_vm(struct kvm *kvm)
 889 {
 890
 891 #ifdef CONFIG_PPC64
 892         INIT_LIST_HEAD_RCU(&kvm->arch.spapr_tce_tables);
 893         INIT_LIST_HEAD(&kvm->arch.rtas_tokens);
 894         mutex_init(&kvm->arch.rtas_token_lock);
 895 #endif
 896
 897         return kvm->arch.kvm_ops->init_vm(kvm);
 898 }
 899
 900 void kvmppc_core_destroy_vm(struct kvm *kvm)
 901 {
 902         kvm->arch.kvm_ops->destroy_vm(kvm);
 903
 904 #ifdef CONFIG_PPC64
 905         kvmppc_rtas_tokens_free(kvm);
 906         WARN_ON(!list_empty(&kvm->arch.spapr_tce_tables));
 907 #endif
 908
 909 #ifdef CONFIG_KVM_XICS
 910         /*
 911          * Free the XIVE and XICS devices which are not directly freed by the
 912          * device 'release' method
 913          */
 914         kfree(kvm->arch.xive_devices.native);
 915         kvm->arch.xive_devices.native = NULL;
 916         kfree(kvm->arch.xive_devices.xics_on_xive);
 917         kvm->arch.xive_devices.xics_on_xive = NULL;
 918         kfree(kvm->arch.xics_device);
 919         kvm->arch.xics_device = NULL;
 920 #endif /* CONFIG_KVM_XICS */
 921 }
 922
 923 int kvmppc_h_logical_ci_load(struct kvm_vcpu *vcpu)
 924 {
 925         unsigned long size = kvmppc_get_gpr(vcpu, 4);
 926         unsigned long addr = kvmppc_get_gpr(vcpu, 5);
 927         u64 buf;
 928         int srcu_idx;
 929         int ret;
 930
 931         if (!is_power_of_2(size) || (size > sizeof(buf)))
 932                 return H_TOO_HARD;
 933
 934         srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
 935         ret = kvm_io_bus_read(vcpu, KVM_MMIO_BUS, addr, size, &buf);
 936         srcu_read_unlock(&vcpu->kvm->srcu, srcu_idx);
 937         if (ret != 0)
 938                 return H_TOO_HARD;
 939
 940         switch (size) {
 941         case 1:
 942                 kvmppc_set_gpr(vcpu, 4, *(u8 *)&buf);
 943                 break;
 944
 945         case 2:
 946                 kvmppc_set_gpr(vcpu, 4, be16_to_cpu(*(__be16 *)&buf));
 947                 break;
 948
 949         case 4:
 950                 kvmppc_set_gpr(vcpu, 4, be32_to_cpu(*(__be32 *)&buf));
 951                 break;
 952
 953         case 8:
 954                 kvmppc_set_gpr(vcpu, 4, be64_to_cpu(*(__be64 *)&buf));
 955                 break;
 956
 957         default:
 958                 BUG();
 959         }
 960
 961         return H_SUCCESS;
 962 }
 963 EXPORT_SYMBOL_GPL(kvmppc_h_logical_ci_load);
 964
 965 int kvmppc_h_logical_ci_store(struct kvm_vcpu *vcpu)
 966 {
 967         unsigned long size = kvmppc_get_gpr(vcpu, 4);
 968         unsigned long addr = kvmppc_get_gpr(vcpu, 5);
 969         unsigned long val = kvmppc_get_gpr(vcpu, 6);
 970         u64 buf;
 971         int srcu_idx;
 972         int ret;
 973
 974         switch (size) {
 975         case 1:
 976                 *(u8 *)&buf = val;
 977                 break;
 978
 979         case 2:
 980                 *(__be16 *)&buf = cpu_to_be16(val);
 981                 break;
 982
 983         case 4:
 984                 *(__be32 *)&buf = cpu_to_be32(val);
 985                 break;
 986
 987         case 8:
 988                 *(__be64 *)&buf = cpu_to_be64(val);
 989                 break;
 990
 991         default:
 992                 return H_TOO_HARD;
 993         }
 994
 995         srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
 996         ret = kvm_io_bus_write(vcpu, KVM_MMIO_BUS, addr, size, &buf);
 997         srcu_read_unlock(&vcpu->kvm->srcu, srcu_idx);
 998         if (ret != 0)
 999                 return H_TOO_HARD;
1000
1001         return H_SUCCESS;
1002 }
1003 EXPORT_SYMBOL_GPL(kvmppc_h_logical_ci_store);
1004
1005 int kvmppc_core_check_processor_compat(void)
1006 {
1007         /*
1008          * We always return 0 for book3s. We check
1009          * for compatibility while loading the HV
1010          * or PR module
1011          */
1012         return 0;
1013 }
1014
1015 int kvmppc_book3s_hcall_implemented(struct kvm *kvm, unsigned long hcall)
1016 {
1017         return kvm->arch.kvm_ops->hcall_implemented(hcall);
1018 }
1019
1020 #ifdef CONFIG_KVM_XICS
1021 int kvm_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, int level,
1022                 bool line_status)
1023 {
1024         if (xics_on_xive())
1025                 return kvmppc_xive_set_irq(kvm, irq_source_id, irq, level,
1026                                            line_status);
1027         else
1028                 return kvmppc_xics_set_irq(kvm, irq_source_id, irq, level,
1029                                            line_status);
1030 }
1031
1032 int kvm_arch_set_irq_inatomic(struct kvm_kernel_irq_routing_entry *irq_entry,
1033                               struct kvm *kvm, int irq_source_id,
1034                               int level, bool line_status)
1035 {
1036         return kvm_set_irq(kvm, irq_source_id, irq_entry->gsi,
1037                            level, line_status);
1038 }
1039 static int kvmppc_book3s_set_irq(struct kvm_kernel_irq_routing_entry *e,
1040                                  struct kvm *kvm, int irq_source_id, int level,
1041                                  bool line_status)
1042 {
1043         return kvm_set_irq(kvm, irq_source_id, e->gsi, level, line_status);
1044 }
1045
1046 int kvm_irq_map_gsi(struct kvm *kvm,
1047                     struct kvm_kernel_irq_routing_entry *entries, int gsi)
1048 {
1049         entries->gsi = gsi;
1050         entries->type = KVM_IRQ_ROUTING_IRQCHIP;
1051         entries->set = kvmppc_book3s_set_irq;
1052         entries->irqchip.irqchip = 0;
1053         entries->irqchip.pin = gsi;
1054         return 1;
1055 }
1056
1057 int kvm_irq_map_chip_pin(struct kvm *kvm, unsigned irqchip, unsigned pin)
1058 {
1059         return pin;
1060 }
1061
1062 #endif /* CONFIG_KVM_XICS */
1063
1064 static int kvmppc_book3s_init(void)
1065 {
1066         int r;
1067
1068         r = kvm_init(NULL, sizeof(struct kvm_vcpu), 0, THIS_MODULE);
1069         if (r)
1070                 return r;
1071 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
1072         r = kvmppc_book3s_init_pr();
1073 #endif
1074
1075 #ifdef CONFIG_KVM_XICS
1076 #ifdef CONFIG_KVM_XIVE
1077         if (xics_on_xive()) {
1078                 kvm_register_device_ops(&kvm_xive_ops, KVM_DEV_TYPE_XICS);
1079                 if (kvmppc_xive_native_supported())
1080                         kvm_register_device_ops(&kvm_xive_native_ops,
1081                                                 KVM_DEV_TYPE_XIVE);
1082         } else
1083 #endif
1084                 kvm_register_device_ops(&kvm_xics_ops, KVM_DEV_TYPE_XICS);
1085 #endif
1086         return r;
1087 }
1088
1089 static void kvmppc_book3s_exit(void)
1090 {
1091 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
1092         kvmppc_book3s_exit_pr();
1093 #endif
1094         kvm_exit();
1095 }
1096
1097 module_init(kvmppc_book3s_init);
1098 module_exit(kvmppc_book3s_exit);
1099
1100 /* On 32bit this is our one and only kernel module */
1101 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
1102 MODULE_ALIAS_MISCDEV(KVM_MINOR);
1103 MODULE_ALIAS("devname:kvm");
1104 #endif