arch/powerpc/kvm/book3s.c

   1 /*
   2  * Copyright (C) 2009. SUSE Linux Products GmbH. All rights reserved.
   3  *
   4  * Authors:
   5  *    Alexander Graf <agraf@suse.de>
   6  *    Kevin Wolf <mail@kevin-wolf.de>
   7  *
   8  * Description:
   9  * This file is derived from arch/powerpc/kvm/44x.c,
  10  * by Hollis Blanchard <hollisb@us.ibm.com>.
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License, version 2, as
  14  * published by the Free Software Foundation.
  15  */
  16
  17 #include <linux/kvm_host.h>
  18 #include <linux/err.h>
  19 #include <linux/export.h>
  20 #include <linux/slab.h>
  21 #include <linux/module.h>
  22 #include <linux/miscdevice.h>
  23 #include <linux/gfp.h>
  24 #include <linux/sched.h>
  25 #include <linux/vmalloc.h>
  26 #include <linux/highmem.h>
  27
  28 #include <asm/reg.h>
  29 #include <asm/cputable.h>
  30 #include <asm/cacheflush.h>
  31 #include <linux/uaccess.h>
  32 #include <asm/io.h>
  33 #include <asm/kvm_ppc.h>
  34 #include <asm/kvm_book3s.h>
  35 #include <asm/mmu_context.h>
  36 #include <asm/page.h>
  37 #include <asm/xive.h>
  38
  39 #include "book3s.h"
  40 #include "trace.h"
  41
  42 #define VM_STAT(x) offsetof(struct kvm, stat.x), KVM_STAT_VM
  43 #define VCPU_STAT(x) offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU
  44
  45 /* #define EXIT_DEBUG */
  46
  47 struct kvm_stats_debugfs_item debugfs_entries[] = {
  48         { "exits",       VCPU_STAT(sum_exits) },
  49         { "mmio",        VCPU_STAT(mmio_exits) },
  50         { "sig",         VCPU_STAT(signal_exits) },
  51         { "sysc",        VCPU_STAT(syscall_exits) },
  52         { "inst_emu",    VCPU_STAT(emulated_inst_exits) },
  53         { "dec",         VCPU_STAT(dec_exits) },
  54         { "ext_intr",    VCPU_STAT(ext_intr_exits) },
  55         { "queue_intr",  VCPU_STAT(queue_intr) },
  56         { "halt_poll_success_ns",       VCPU_STAT(halt_poll_success_ns) },
  57         { "halt_poll_fail_ns",          VCPU_STAT(halt_poll_fail_ns) },
  58         { "halt_wait_ns",               VCPU_STAT(halt_wait_ns) },
  59         { "halt_successful_poll", VCPU_STAT(halt_successful_poll), },
  60         { "halt_attempted_poll", VCPU_STAT(halt_attempted_poll), },
  61         { "halt_successful_wait",       VCPU_STAT(halt_successful_wait) },
  62         { "halt_poll_invalid", VCPU_STAT(halt_poll_invalid) },
  63         { "halt_wakeup", VCPU_STAT(halt_wakeup) },
  64         { "pf_storage",  VCPU_STAT(pf_storage) },
  65         { "sp_storage",  VCPU_STAT(sp_storage) },
  66         { "pf_instruc",  VCPU_STAT(pf_instruc) },
  67         { "sp_instruc",  VCPU_STAT(sp_instruc) },
  68         { "ld",          VCPU_STAT(ld) },
  69         { "ld_slow",     VCPU_STAT(ld_slow) },
  70         { "st",          VCPU_STAT(st) },
  71         { "st_slow",     VCPU_STAT(st_slow) },
  72         { "pthru_all",       VCPU_STAT(pthru_all) },
  73         { "pthru_host",      VCPU_STAT(pthru_host) },
  74         { "pthru_bad_aff",   VCPU_STAT(pthru_bad_aff) },
  75         { "largepages_2M",    VM_STAT(num_2M_pages) },
  76         { "largepages_1G",    VM_STAT(num_1G_pages) },
  77         { NULL }
  78 };
  79
  80 void kvmppc_unfixup_split_real(struct kvm_vcpu *vcpu)
  81 {
  82         if (vcpu->arch.hflags & BOOK3S_HFLAG_SPLIT_HACK) {
  83                 ulong pc = kvmppc_get_pc(vcpu);
  84                 ulong lr = kvmppc_get_lr(vcpu);
  85                 if ((pc & SPLIT_HACK_MASK) == SPLIT_HACK_OFFS)
  86                         kvmppc_set_pc(vcpu, pc & ~SPLIT_HACK_MASK);
  87                 if ((lr & SPLIT_HACK_MASK) == SPLIT_HACK_OFFS)
  88                         kvmppc_set_lr(vcpu, lr & ~SPLIT_HACK_MASK);
  89                 vcpu->arch.hflags &= ~BOOK3S_HFLAG_SPLIT_HACK;
  90         }
  91 }
  92 EXPORT_SYMBOL_GPL(kvmppc_unfixup_split_real);
  93
  94 static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu)
  95 {
  96         if (!is_kvmppc_hv_enabled(vcpu->kvm))
  97                 return to_book3s(vcpu)->hior;
  98         return 0;
  99 }
 100
 101 static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu,
 102                         unsigned long pending_now, unsigned long old_pending)
 103 {
 104         if (is_kvmppc_hv_enabled(vcpu->kvm))
 105                 return;
 106         if (pending_now)
 107                 kvmppc_set_int_pending(vcpu, 1);
 108         else if (old_pending)
 109                 kvmppc_set_int_pending(vcpu, 0);
 110 }
 111
 112 static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu)
 113 {
 114         ulong crit_raw;
 115         ulong crit_r1;
 116         bool crit;
 117
 118         if (is_kvmppc_hv_enabled(vcpu->kvm))
 119                 return false;
 120
 121         crit_raw = kvmppc_get_critical(vcpu);
 122         crit_r1 = kvmppc_get_gpr(vcpu, 1);
 123
 124         /* Truncate crit indicators in 32 bit mode */
 125         if (!(kvmppc_get_msr(vcpu) & MSR_SF)) {
 126                 crit_raw &= 0xffffffff;
 127                 crit_r1 &= 0xffffffff;
 128         }
 129
 130         /* Critical section when crit == r1 */
 131         crit = (crit_raw == crit_r1);
 132         /* ... and we're in supervisor mode */
 133         crit = crit && !(kvmppc_get_msr(vcpu) & MSR_PR);
 134
 135         return crit;
 136 }
 137
 138 void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags)
 139 {
 140         kvmppc_unfixup_split_real(vcpu);
 141         kvmppc_set_srr0(vcpu, kvmppc_get_pc(vcpu));
 142         kvmppc_set_srr1(vcpu, (kvmppc_get_msr(vcpu) & ~0x783f0000ul) | flags);
 143         kvmppc_set_pc(vcpu, kvmppc_interrupt_offset(vcpu) + vec);
 144         vcpu->arch.mmu.reset_msr(vcpu);
 145 }
 146
 147 static int kvmppc_book3s_vec2irqprio(unsigned int vec)
 148 {
 149         unsigned int prio;
 150
 151         switch (vec) {
 152         case 0x100: prio = BOOK3S_IRQPRIO_SYSTEM_RESET;         break;
 153         case 0x200: prio = BOOK3S_IRQPRIO_MACHINE_CHECK;        break;
 154         case 0x300: prio = BOOK3S_IRQPRIO_DATA_STORAGE;         break;
 155         case 0x380: prio = BOOK3S_IRQPRIO_DATA_SEGMENT;         break;
 156         case 0x400: prio = BOOK3S_IRQPRIO_INST_STORAGE;         break;
 157         case 0x480: prio = BOOK3S_IRQPRIO_INST_SEGMENT;         break;
 158         case 0x500: prio = BOOK3S_IRQPRIO_EXTERNAL;             break;
 159         case 0x600: prio = BOOK3S_IRQPRIO_ALIGNMENT;            break;
 160         case 0x700: prio = BOOK3S_IRQPRIO_PROGRAM;              break;
 161         case 0x800: prio = BOOK3S_IRQPRIO_FP_UNAVAIL;           break;
 162         case 0x900: prio = BOOK3S_IRQPRIO_DECREMENTER;          break;
 163         case 0xc00: prio = BOOK3S_IRQPRIO_SYSCALL;              break;
 164         case 0xd00: prio = BOOK3S_IRQPRIO_DEBUG;                break;
 165         case 0xf20: prio = BOOK3S_IRQPRIO_ALTIVEC;              break;
 166         case 0xf40: prio = BOOK3S_IRQPRIO_VSX;                  break;
 167         case 0xf60: prio = BOOK3S_IRQPRIO_FAC_UNAVAIL;          break;
 168         default:    prio = BOOK3S_IRQPRIO_MAX;                  break;
 169         }
 170
 171         return prio;
 172 }
 173
 174 void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu *vcpu,
 175                                           unsigned int vec)
 176 {
 177         unsigned long old_pending = vcpu->arch.pending_exceptions;
 178
 179         clear_bit(kvmppc_book3s_vec2irqprio(vec),
 180                   &vcpu->arch.pending_exceptions);
 181
 182         kvmppc_update_int_pending(vcpu, vcpu->arch.pending_exceptions,
 183                                   old_pending);
 184 }
 185
 186 void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec)
 187 {
 188         vcpu->stat.queue_intr++;
 189
 190         set_bit(kvmppc_book3s_vec2irqprio(vec),
 191                 &vcpu->arch.pending_exceptions);
 192 #ifdef EXIT_DEBUG
 193         printk(KERN_INFO "Queueing interrupt %x\n", vec);
 194 #endif
 195 }
 196 EXPORT_SYMBOL_GPL(kvmppc_book3s_queue_irqprio);
 197
 198 void kvmppc_core_queue_machine_check(struct kvm_vcpu *vcpu, ulong flags)
 199 {
 200         /* might as well deliver this straight away */
 201         kvmppc_inject_interrupt(vcpu, BOOK3S_INTERRUPT_MACHINE_CHECK, flags);
 202 }
 203 EXPORT_SYMBOL_GPL(kvmppc_core_queue_machine_check);
 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 kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
 503 {
 504         return 0;
 505 }
 506
 507 int kvmppc_subarch_vcpu_init(struct kvm_vcpu *vcpu)
 508 {
 509         return 0;
 510 }
 511
 512 void kvmppc_subarch_vcpu_uninit(struct kvm_vcpu *vcpu)
 513 {
 514 }
 515
 516 int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
 517                                   struct kvm_sregs *sregs)
 518 {
 519         int ret;
 520
 521         vcpu_load(vcpu);
 522         ret = vcpu->kvm->arch.kvm_ops->get_sregs(vcpu, sregs);
 523         vcpu_put(vcpu);
 524
 525         return ret;
 526 }
 527
 528 int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
 529                                   struct kvm_sregs *sregs)
 530 {
 531         int ret;
 532
 533         vcpu_load(vcpu);
 534         ret = vcpu->kvm->arch.kvm_ops->set_sregs(vcpu, sregs);
 535         vcpu_put(vcpu);
 536
 537         return ret;
 538 }
 539
 540 int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
 541 {
 542         int i;
 543
 544         regs->pc = kvmppc_get_pc(vcpu);
 545         regs->cr = kvmppc_get_cr(vcpu);
 546         regs->ctr = kvmppc_get_ctr(vcpu);
 547         regs->lr = kvmppc_get_lr(vcpu);
 548         regs->xer = kvmppc_get_xer(vcpu);
 549         regs->msr = kvmppc_get_msr(vcpu);
 550         regs->srr0 = kvmppc_get_srr0(vcpu);
 551         regs->srr1 = kvmppc_get_srr1(vcpu);
 552         regs->pid = vcpu->arch.pid;
 553         regs->sprg0 = kvmppc_get_sprg0(vcpu);
 554         regs->sprg1 = kvmppc_get_sprg1(vcpu);
 555         regs->sprg2 = kvmppc_get_sprg2(vcpu);
 556         regs->sprg3 = kvmppc_get_sprg3(vcpu);
 557         regs->sprg4 = kvmppc_get_sprg4(vcpu);
 558         regs->sprg5 = kvmppc_get_sprg5(vcpu);
 559         regs->sprg6 = kvmppc_get_sprg6(vcpu);
 560         regs->sprg7 = kvmppc_get_sprg7(vcpu);
 561
 562         for (i = 0; i < ARRAY_SIZE(regs->gpr); i++)
 563                 regs->gpr[i] = kvmppc_get_gpr(vcpu, i);
 564
 565         return 0;
 566 }
 567
 568 int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
 569 {
 570         int i;
 571
 572         kvmppc_set_pc(vcpu, regs->pc);
 573         kvmppc_set_cr(vcpu, regs->cr);
 574         kvmppc_set_ctr(vcpu, regs->ctr);
 575         kvmppc_set_lr(vcpu, regs->lr);
 576         kvmppc_set_xer(vcpu, regs->xer);
 577         kvmppc_set_msr(vcpu, regs->msr);
 578         kvmppc_set_srr0(vcpu, regs->srr0);
 579         kvmppc_set_srr1(vcpu, regs->srr1);
 580         kvmppc_set_sprg0(vcpu, regs->sprg0);
 581         kvmppc_set_sprg1(vcpu, regs->sprg1);
 582         kvmppc_set_sprg2(vcpu, regs->sprg2);
 583         kvmppc_set_sprg3(vcpu, regs->sprg3);
 584         kvmppc_set_sprg4(vcpu, regs->sprg4);
 585         kvmppc_set_sprg5(vcpu, regs->sprg5);
 586         kvmppc_set_sprg6(vcpu, regs->sprg6);
 587         kvmppc_set_sprg7(vcpu, regs->sprg7);
 588
 589         for (i = 0; i < ARRAY_SIZE(regs->gpr); i++)
 590                 kvmppc_set_gpr(vcpu, i, regs->gpr[i]);
 591
 592         return 0;
 593 }
 594
 595 int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
 596 {
 597         return -ENOTSUPP;
 598 }
 599
 600 int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
 601 {
 602         return -ENOTSUPP;
 603 }
 604
 605 int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id,
 606                         union kvmppc_one_reg *val)
 607 {
 608         int r = 0;
 609         long int i;
 610
 611         r = vcpu->kvm->arch.kvm_ops->get_one_reg(vcpu, id, val);
 612         if (r == -EINVAL) {
 613                 r = 0;
 614                 switch (id) {
 615                 case KVM_REG_PPC_DAR:
 616                         *val = get_reg_val(id, kvmppc_get_dar(vcpu));
 617                         break;
 618                 case KVM_REG_PPC_DSISR:
 619                         *val = get_reg_val(id, kvmppc_get_dsisr(vcpu));
 620                         break;
 621                 case KVM_REG_PPC_FPR0 ... KVM_REG_PPC_FPR31:
 622                         i = id - KVM_REG_PPC_FPR0;
 623                         *val = get_reg_val(id, VCPU_FPR(vcpu, i));
 624                         break;
 625                 case KVM_REG_PPC_FPSCR:
 626                         *val = get_reg_val(id, vcpu->arch.fp.fpscr);
 627                         break;
 628 #ifdef CONFIG_VSX
 629                 case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31:
 630                         if (cpu_has_feature(CPU_FTR_VSX)) {
 631                                 i = id - KVM_REG_PPC_VSR0;
 632                                 val->vsxval[0] = vcpu->arch.fp.fpr[i][0];
 633                                 val->vsxval[1] = vcpu->arch.fp.fpr[i][1];
 634                         } else {
 635                                 r = -ENXIO;
 636                         }
 637                         break;
 638 #endif /* CONFIG_VSX */
 639                 case KVM_REG_PPC_DEBUG_INST:
 640                         *val = get_reg_val(id, INS_TW);
 641                         break;
 642 #ifdef CONFIG_KVM_XICS
 643                 case KVM_REG_PPC_ICP_STATE:
 644                         if (!vcpu->arch.icp && !vcpu->arch.xive_vcpu) {
 645                                 r = -ENXIO;
 646                                 break;
 647                         }
 648                         if (xics_on_xive())
 649                                 *val = get_reg_val(id, kvmppc_xive_get_icp(vcpu));
 650                         else
 651                                 *val = get_reg_val(id, kvmppc_xics_get_icp(vcpu));
 652                         break;
 653 #endif /* CONFIG_KVM_XICS */
 654 #ifdef CONFIG_KVM_XIVE
 655                 case KVM_REG_PPC_VP_STATE:
 656                         if (!vcpu->arch.xive_vcpu) {
 657                                 r = -ENXIO;
 658                                 break;
 659                         }
 660                         if (xive_enabled())
 661                                 r = kvmppc_xive_native_get_vp(vcpu, val);
 662                         else
 663                                 r = -ENXIO;
 664                         break;
 665 #endif /* CONFIG_KVM_XIVE */
 666                 case KVM_REG_PPC_FSCR:
 667                         *val = get_reg_val(id, vcpu->arch.fscr);
 668                         break;
 669                 case KVM_REG_PPC_TAR:
 670                         *val = get_reg_val(id, vcpu->arch.tar);
 671                         break;
 672                 case KVM_REG_PPC_EBBHR:
 673                         *val = get_reg_val(id, vcpu->arch.ebbhr);
 674                         break;
 675                 case KVM_REG_PPC_EBBRR:
 676                         *val = get_reg_val(id, vcpu->arch.ebbrr);
 677                         break;
 678                 case KVM_REG_PPC_BESCR:
 679                         *val = get_reg_val(id, vcpu->arch.bescr);
 680                         break;
 681                 case KVM_REG_PPC_IC:
 682                         *val = get_reg_val(id, vcpu->arch.ic);
 683                         break;
 684                 default:
 685                         r = -EINVAL;
 686                         break;
 687                 }
 688         }
 689
 690         return r;
 691 }
 692
 693 int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id,
 694                         union kvmppc_one_reg *val)
 695 {
 696         int r = 0;
 697         long int i;
 698
 699         r = vcpu->kvm->arch.kvm_ops->set_one_reg(vcpu, id, val);
 700         if (r == -EINVAL) {
 701                 r = 0;
 702                 switch (id) {
 703                 case KVM_REG_PPC_DAR:
 704                         kvmppc_set_dar(vcpu, set_reg_val(id, *val));
 705                         break;
 706                 case KVM_REG_PPC_DSISR:
 707                         kvmppc_set_dsisr(vcpu, set_reg_val(id, *val));
 708                         break;
 709                 case KVM_REG_PPC_FPR0 ... KVM_REG_PPC_FPR31:
 710                         i = id - KVM_REG_PPC_FPR0;
 711                         VCPU_FPR(vcpu, i) = set_reg_val(id, *val);
 712                         break;
 713                 case KVM_REG_PPC_FPSCR:
 714                         vcpu->arch.fp.fpscr = set_reg_val(id, *val);
 715                         break;
 716 #ifdef CONFIG_VSX
 717                 case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31:
 718                         if (cpu_has_feature(CPU_FTR_VSX)) {
 719                                 i = id - KVM_REG_PPC_VSR0;
 720                                 vcpu->arch.fp.fpr[i][0] = val->vsxval[0];
 721                                 vcpu->arch.fp.fpr[i][1] = val->vsxval[1];
 722                         } else {
 723                                 r = -ENXIO;
 724                         }
 725                         break;
 726 #endif /* CONFIG_VSX */
 727 #ifdef CONFIG_KVM_XICS
 728                 case KVM_REG_PPC_ICP_STATE:
 729                         if (!vcpu->arch.icp && !vcpu->arch.xive_vcpu) {
 730                                 r = -ENXIO;
 731                                 break;
 732                         }
 733                         if (xics_on_xive())
 734                                 r = kvmppc_xive_set_icp(vcpu, set_reg_val(id, *val));
 735                         else
 736                                 r = kvmppc_xics_set_icp(vcpu, set_reg_val(id, *val));
 737                         break;
 738 #endif /* CONFIG_KVM_XICS */
 739 #ifdef CONFIG_KVM_XIVE
 740                 case KVM_REG_PPC_VP_STATE:
 741                         if (!vcpu->arch.xive_vcpu) {
 742                                 r = -ENXIO;
 743                                 break;
 744                         }
 745                         if (xive_enabled())
 746                                 r = kvmppc_xive_native_set_vp(vcpu, val);
 747                         else
 748                                 r = -ENXIO;
 749                         break;
 750 #endif /* CONFIG_KVM_XIVE */
 751                 case KVM_REG_PPC_FSCR:
 752                         vcpu->arch.fscr = set_reg_val(id, *val);
 753                         break;
 754                 case KVM_REG_PPC_TAR:
 755                         vcpu->arch.tar = set_reg_val(id, *val);
 756                         break;
 757                 case KVM_REG_PPC_EBBHR:
 758                         vcpu->arch.ebbhr = set_reg_val(id, *val);
 759                         break;
 760                 case KVM_REG_PPC_EBBRR:
 761                         vcpu->arch.ebbrr = set_reg_val(id, *val);
 762                         break;
 763                 case KVM_REG_PPC_BESCR:
 764                         vcpu->arch.bescr = set_reg_val(id, *val);
 765                         break;
 766                 case KVM_REG_PPC_IC:
 767                         vcpu->arch.ic = set_reg_val(id, *val);
 768                         break;
 769                 default:
 770                         r = -EINVAL;
 771                         break;
 772                 }
 773         }
 774
 775         return r;
 776 }
 777
 778 void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 779 {
 780         vcpu->kvm->arch.kvm_ops->vcpu_load(vcpu, cpu);
 781 }
 782
 783 void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu)
 784 {
 785         vcpu->kvm->arch.kvm_ops->vcpu_put(vcpu);
 786 }
 787
 788 void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 msr)
 789 {
 790         vcpu->kvm->arch.kvm_ops->set_msr(vcpu, msr);
 791 }
 792 EXPORT_SYMBOL_GPL(kvmppc_set_msr);
 793
 794 int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
 795 {
 796         return vcpu->kvm->arch.kvm_ops->vcpu_run(kvm_run, vcpu);
 797 }
 798
 799 int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
 800                                   struct kvm_translation *tr)
 801 {
 802         return 0;
 803 }
 804
 805 int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
 806                                         struct kvm_guest_debug *dbg)
 807 {
 808         vcpu_load(vcpu);
 809         vcpu->guest_debug = dbg->control;
 810         vcpu_put(vcpu);
 811         return 0;
 812 }
 813
 814 void kvmppc_decrementer_func(struct kvm_vcpu *vcpu)
 815 {
 816         kvmppc_core_queue_dec(vcpu);
 817         kvm_vcpu_kick(vcpu);
 818 }
 819
 820 struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
 821 {
 822         return kvm->arch.kvm_ops->vcpu_create(kvm, id);
 823 }
 824
 825 void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
 826 {
 827         vcpu->kvm->arch.kvm_ops->vcpu_free(vcpu);
 828 }
 829
 830 int kvmppc_core_check_requests(struct kvm_vcpu *vcpu)
 831 {
 832         return vcpu->kvm->arch.kvm_ops->check_requests(vcpu);
 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 *free,
 841                               struct kvm_memory_slot *dont)
 842 {
 843         kvm->arch.kvm_ops->free_memslot(free, dont);
 844 }
 845
 846 int kvmppc_core_create_memslot(struct kvm *kvm, struct kvm_memory_slot *slot,
 847                                unsigned long npages)
 848 {
 849         return kvm->arch.kvm_ops->create_memslot(slot, npages);
 850 }
 851
 852 void kvmppc_core_flush_memslot(struct kvm *kvm, struct kvm_memory_slot *memslot)
 853 {
 854         kvm->arch.kvm_ops->flush_memslot(kvm, memslot);
 855 }
 856
 857 int kvmppc_core_prepare_memory_region(struct kvm *kvm,
 858                                 struct kvm_memory_slot *memslot,
 859                                 const struct kvm_userspace_memory_region *mem)
 860 {
 861         return kvm->arch.kvm_ops->prepare_memory_region(kvm, memslot, mem);
 862 }
 863
 864 void kvmppc_core_commit_memory_region(struct kvm *kvm,
 865                                 const struct kvm_userspace_memory_region *mem,
 866                                 const struct kvm_memory_slot *old,
 867                                 const struct kvm_memory_slot *new,
 868                                 enum kvm_mr_change change)
 869 {
 870         kvm->arch.kvm_ops->commit_memory_region(kvm, mem, old, new, change);
 871 }
 872
 873 int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end)
 874 {
 875         return kvm->arch.kvm_ops->unmap_hva_range(kvm, start, end);
 876 }
 877
 878 int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end)
 879 {
 880         return kvm->arch.kvm_ops->age_hva(kvm, start, end);
 881 }
 882
 883 int kvm_test_age_hva(struct kvm *kvm, unsigned long hva)
 884 {
 885         return kvm->arch.kvm_ops->test_age_hva(kvm, hva);
 886 }
 887
 888 int kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte)
 889 {
 890         kvm->arch.kvm_ops->set_spte_hva(kvm, hva, pte);
 891         return 0;
 892 }
 893
 894 void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu)
 895 {
 896         vcpu->kvm->arch.kvm_ops->mmu_destroy(vcpu);
 897 }
 898
 899 int kvmppc_core_init_vm(struct kvm *kvm)
 900 {
 901
 902 #ifdef CONFIG_PPC64
 903         INIT_LIST_HEAD_RCU(&kvm->arch.spapr_tce_tables);
 904         INIT_LIST_HEAD(&kvm->arch.rtas_tokens);
 905         mutex_init(&kvm->arch.rtas_token_lock);
 906 #endif
 907
 908         return kvm->arch.kvm_ops->init_vm(kvm);
 909 }
 910
 911 void kvmppc_core_destroy_vm(struct kvm *kvm)
 912 {
 913         kvm->arch.kvm_ops->destroy_vm(kvm);
 914
 915 #ifdef CONFIG_PPC64
 916         kvmppc_rtas_tokens_free(kvm);
 917         WARN_ON(!list_empty(&kvm->arch.spapr_tce_tables));
 918 #endif
 919
 920 #ifdef CONFIG_KVM_XICS
 921         /*
 922          * Free the XIVE devices which are not directly freed by the
 923          * device 'release' method
 924          */
 925         kfree(kvm->arch.xive_devices.native);
 926         kvm->arch.xive_devices.native = NULL;
 927         kfree(kvm->arch.xive_devices.xics_on_xive);
 928         kvm->arch.xive_devices.xics_on_xive = NULL;
 929 #endif /* CONFIG_KVM_XICS */
 930 }
 931
 932 int kvmppc_h_logical_ci_load(struct kvm_vcpu *vcpu)
 933 {
 934         unsigned long size = kvmppc_get_gpr(vcpu, 4);
 935         unsigned long addr = kvmppc_get_gpr(vcpu, 5);
 936         u64 buf;
 937         int srcu_idx;
 938         int ret;
 939
 940         if (!is_power_of_2(size) || (size > sizeof(buf)))
 941                 return H_TOO_HARD;
 942
 943         srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
 944         ret = kvm_io_bus_read(vcpu, KVM_MMIO_BUS, addr, size, &buf);
 945         srcu_read_unlock(&vcpu->kvm->srcu, srcu_idx);
 946         if (ret != 0)
 947                 return H_TOO_HARD;
 948
 949         switch (size) {
 950         case 1:
 951                 kvmppc_set_gpr(vcpu, 4, *(u8 *)&buf);
 952                 break;
 953
 954         case 2:
 955                 kvmppc_set_gpr(vcpu, 4, be16_to_cpu(*(__be16 *)&buf));
 956                 break;
 957
 958         case 4:
 959                 kvmppc_set_gpr(vcpu, 4, be32_to_cpu(*(__be32 *)&buf));
 960                 break;
 961
 962         case 8:
 963                 kvmppc_set_gpr(vcpu, 4, be64_to_cpu(*(__be64 *)&buf));
 964                 break;
 965
 966         default:
 967                 BUG();
 968         }
 969
 970         return H_SUCCESS;
 971 }
 972 EXPORT_SYMBOL_GPL(kvmppc_h_logical_ci_load);
 973
 974 int kvmppc_h_logical_ci_store(struct kvm_vcpu *vcpu)
 975 {
 976         unsigned long size = kvmppc_get_gpr(vcpu, 4);
 977         unsigned long addr = kvmppc_get_gpr(vcpu, 5);
 978         unsigned long val = kvmppc_get_gpr(vcpu, 6);
 979         u64 buf;
 980         int srcu_idx;
 981         int ret;
 982
 983         switch (size) {
 984         case 1:
 985                 *(u8 *)&buf = val;
 986                 break;
 987
 988         case 2:
 989                 *(__be16 *)&buf = cpu_to_be16(val);
 990                 break;
 991
 992         case 4:
 993                 *(__be32 *)&buf = cpu_to_be32(val);
 994                 break;
 995
 996         case 8:
 997                 *(__be64 *)&buf = cpu_to_be64(val);
 998                 break;
 999
1000         default:
1001                 return H_TOO_HARD;
1002         }
1003
1004         srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
1005         ret = kvm_io_bus_write(vcpu, KVM_MMIO_BUS, addr, size, &buf);
1006         srcu_read_unlock(&vcpu->kvm->srcu, srcu_idx);
1007         if (ret != 0)
1008                 return H_TOO_HARD;
1009
1010         return H_SUCCESS;
1011 }
1012 EXPORT_SYMBOL_GPL(kvmppc_h_logical_ci_store);
1013
1014 int kvmppc_core_check_processor_compat(void)
1015 {
1016         /*
1017          * We always return 0 for book3s. We check
1018          * for compatibility while loading the HV
1019          * or PR module
1020          */
1021         return 0;
1022 }
1023
1024 int kvmppc_book3s_hcall_implemented(struct kvm *kvm, unsigned long hcall)
1025 {
1026         return kvm->arch.kvm_ops->hcall_implemented(hcall);
1027 }
1028
1029 #ifdef CONFIG_KVM_XICS
1030 int kvm_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, int level,
1031                 bool line_status)
1032 {
1033         if (xics_on_xive())
1034                 return kvmppc_xive_set_irq(kvm, irq_source_id, irq, level,
1035                                            line_status);
1036         else
1037                 return kvmppc_xics_set_irq(kvm, irq_source_id, irq, level,
1038                                            line_status);
1039 }
1040
1041 int kvm_arch_set_irq_inatomic(struct kvm_kernel_irq_routing_entry *irq_entry,
1042                               struct kvm *kvm, int irq_source_id,
1043                               int level, bool line_status)
1044 {
1045         return kvm_set_irq(kvm, irq_source_id, irq_entry->gsi,
1046                            level, line_status);
1047 }
1048 static int kvmppc_book3s_set_irq(struct kvm_kernel_irq_routing_entry *e,
1049                                  struct kvm *kvm, int irq_source_id, int level,
1050                                  bool line_status)
1051 {
1052         return kvm_set_irq(kvm, irq_source_id, e->gsi, level, line_status);
1053 }
1054
1055 int kvm_irq_map_gsi(struct kvm *kvm,
1056                     struct kvm_kernel_irq_routing_entry *entries, int gsi)
1057 {
1058         entries->gsi = gsi;
1059         entries->type = KVM_IRQ_ROUTING_IRQCHIP;
1060         entries->set = kvmppc_book3s_set_irq;
1061         entries->irqchip.irqchip = 0;
1062         entries->irqchip.pin = gsi;
1063         return 1;
1064 }
1065
1066 int kvm_irq_map_chip_pin(struct kvm *kvm, unsigned irqchip, unsigned pin)
1067 {
1068         return pin;
1069 }
1070
1071 #endif /* CONFIG_KVM_XICS */
1072
1073 static int kvmppc_book3s_init(void)
1074 {
1075         int r;
1076
1077         r = kvm_init(NULL, sizeof(struct kvm_vcpu), 0, THIS_MODULE);
1078         if (r)
1079                 return r;
1080 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
1081         r = kvmppc_book3s_init_pr();
1082 #endif
1083
1084 #ifdef CONFIG_KVM_XICS
1085 #ifdef CONFIG_KVM_XIVE
1086         if (xics_on_xive()) {
1087                 kvmppc_xive_init_module();
1088                 kvm_register_device_ops(&kvm_xive_ops, KVM_DEV_TYPE_XICS);
1089                 kvmppc_xive_native_init_module();
1090                 kvm_register_device_ops(&kvm_xive_native_ops,
1091                                         KVM_DEV_TYPE_XIVE);
1092         } else
1093 #endif
1094                 kvm_register_device_ops(&kvm_xics_ops, KVM_DEV_TYPE_XICS);
1095 #endif
1096         return r;
1097 }
1098
1099 static void kvmppc_book3s_exit(void)
1100 {
1101 #ifdef CONFIG_KVM_XICS
1102         if (xics_on_xive()) {
1103                 kvmppc_xive_exit_module();
1104                 kvmppc_xive_native_exit_module();
1105         }
1106 #endif
1107 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
1108         kvmppc_book3s_exit_pr();
1109 #endif
1110         kvm_exit();
1111 }
1112
1113 module_init(kvmppc_book3s_init);
1114 module_exit(kvmppc_book3s_exit);
1115
1116 /* On 32bit this is our one and only kernel module */
1117 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
1118 MODULE_ALIAS_MISCDEV(KVM_MINOR);
1119 MODULE_ALIAS("devname:kvm");
1120 #endif