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 VM_STAT(x, ...) offsetof(struct kvm, stat.x), KVM_STAT_VM, ## __VA_ARGS__
  40 #define VCPU_STAT(x, ...) offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU, ## __VA_ARGS__
  41
  42 /* #define EXIT_DEBUG */
  43
  44 struct kvm_stats_debugfs_item debugfs_entries[] = {
  45         { "exits",       VCPU_STAT(sum_exits) },
  46         { "mmio",        VCPU_STAT(mmio_exits) },
  47         { "sig",         VCPU_STAT(signal_exits) },
  48         { "sysc",        VCPU_STAT(syscall_exits) },
  49         { "inst_emu",    VCPU_STAT(emulated_inst_exits) },
  50         { "dec",         VCPU_STAT(dec_exits) },
  51         { "ext_intr",    VCPU_STAT(ext_intr_exits) },
  52         { "queue_intr",  VCPU_STAT(queue_intr) },
  53         { "halt_poll_success_ns",       VCPU_STAT(halt_poll_success_ns) },
  54         { "halt_poll_fail_ns",          VCPU_STAT(halt_poll_fail_ns) },
  55         { "halt_wait_ns",               VCPU_STAT(halt_wait_ns) },
  56         { "halt_successful_poll", VCPU_STAT(halt_successful_poll), },
  57         { "halt_attempted_poll", VCPU_STAT(halt_attempted_poll), },
  58         { "halt_successful_wait",       VCPU_STAT(halt_successful_wait) },
  59         { "halt_poll_invalid", VCPU_STAT(halt_poll_invalid) },
  60         { "halt_wakeup", VCPU_STAT(halt_wakeup) },
  61         { "pf_storage",  VCPU_STAT(pf_storage) },
  62         { "sp_storage",  VCPU_STAT(sp_storage) },
  63         { "pf_instruc",  VCPU_STAT(pf_instruc) },
  64         { "sp_instruc",  VCPU_STAT(sp_instruc) },
  65         { "ld",          VCPU_STAT(ld) },
  66         { "ld_slow",     VCPU_STAT(ld_slow) },
  67         { "st",          VCPU_STAT(st) },
  68         { "st_slow",     VCPU_STAT(st_slow) },
  69         { "pthru_all",       VCPU_STAT(pthru_all) },
  70         { "pthru_host",      VCPU_STAT(pthru_host) },
  71         { "pthru_bad_aff",   VCPU_STAT(pthru_bad_aff) },
  72         { "largepages_2M",    VM_STAT(num_2M_pages, .mode = 0444) },
  73         { "largepages_1G",    VM_STAT(num_1G_pages, .mode = 0444) },
  74         { NULL }
  75 };
  76
  77 void kvmppc_unfixup_split_real(struct kvm_vcpu *vcpu)
  78 {
  79         if (vcpu->arch.hflags & BOOK3S_HFLAG_SPLIT_HACK) {
  80                 ulong pc = kvmppc_get_pc(vcpu);
  81                 ulong lr = kvmppc_get_lr(vcpu);
  82                 if ((pc & SPLIT_HACK_MASK) == SPLIT_HACK_OFFS)
  83                         kvmppc_set_pc(vcpu, pc & ~SPLIT_HACK_MASK);
  84                 if ((lr & SPLIT_HACK_MASK) == SPLIT_HACK_OFFS)
  85                         kvmppc_set_lr(vcpu, lr & ~SPLIT_HACK_MASK);
  86                 vcpu->arch.hflags &= ~BOOK3S_HFLAG_SPLIT_HACK;
  87         }
  88 }
  89 EXPORT_SYMBOL_GPL(kvmppc_unfixup_split_real);
  90
  91 static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu)
  92 {
  93         if (!is_kvmppc_hv_enabled(vcpu->kvm))
  94                 return to_book3s(vcpu)->hior;
  95         return 0;
  96 }
  97
  98 static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu,
  99                         unsigned long pending_now, unsigned long old_pending)
 100 {
 101         if (is_kvmppc_hv_enabled(vcpu->kvm))
 102                 return;
 103         if (pending_now)
 104                 kvmppc_set_int_pending(vcpu, 1);
 105         else if (old_pending)
 106                 kvmppc_set_int_pending(vcpu, 0);
 107 }
 108
 109 static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu)
 110 {
 111         ulong crit_raw;
 112         ulong crit_r1;
 113         bool crit;
 114
 115         if (is_kvmppc_hv_enabled(vcpu->kvm))
 116                 return false;
 117
 118         crit_raw = kvmppc_get_critical(vcpu);
 119         crit_r1 = kvmppc_get_gpr(vcpu, 1);
 120
 121         /* Truncate crit indicators in 32 bit mode */
 122         if (!(kvmppc_get_msr(vcpu) & MSR_SF)) {
 123                 crit_raw &= 0xffffffff;
 124                 crit_r1 &= 0xffffffff;
 125         }
 126
 127         /* Critical section when crit == r1 */
 128         crit = (crit_raw == crit_r1);
 129         /* ... and we're in supervisor mode */
 130         crit = crit && !(kvmppc_get_msr(vcpu) & MSR_PR);
 131
 132         return crit;
 133 }
 134
 135 void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags)
 136 {
 137         kvmppc_unfixup_split_real(vcpu);
 138         kvmppc_set_srr0(vcpu, kvmppc_get_pc(vcpu));
 139         kvmppc_set_srr1(vcpu, (kvmppc_get_msr(vcpu) & ~0x783f0000ul) | flags);
 140         kvmppc_set_pc(vcpu, kvmppc_interrupt_offset(vcpu) + vec);
 141         vcpu->arch.mmu.reset_msr(vcpu);
 142 }
 143
 144 static int kvmppc_book3s_vec2irqprio(unsigned int vec)
 145 {
 146         unsigned int prio;
 147
 148         switch (vec) {
 149         case 0x100: prio = BOOK3S_IRQPRIO_SYSTEM_RESET;         break;
 150         case 0x200: prio = BOOK3S_IRQPRIO_MACHINE_CHECK;        break;
 151         case 0x300: prio = BOOK3S_IRQPRIO_DATA_STORAGE;         break;
 152         case 0x380: prio = BOOK3S_IRQPRIO_DATA_SEGMENT;         break;
 153         case 0x400: prio = BOOK3S_IRQPRIO_INST_STORAGE;         break;
 154         case 0x480: prio = BOOK3S_IRQPRIO_INST_SEGMENT;         break;
 155         case 0x500: prio = BOOK3S_IRQPRIO_EXTERNAL;             break;
 156         case 0x600: prio = BOOK3S_IRQPRIO_ALIGNMENT;            break;
 157         case 0x700: prio = BOOK3S_IRQPRIO_PROGRAM;              break;
 158         case 0x800: prio = BOOK3S_IRQPRIO_FP_UNAVAIL;           break;
 159         case 0x900: prio = BOOK3S_IRQPRIO_DECREMENTER;          break;
 160         case 0xc00: prio = BOOK3S_IRQPRIO_SYSCALL;              break;
 161         case 0xd00: prio = BOOK3S_IRQPRIO_DEBUG;                break;
 162         case 0xf20: prio = BOOK3S_IRQPRIO_ALTIVEC;              break;
 163         case 0xf40: prio = BOOK3S_IRQPRIO_VSX;                  break;
 164         case 0xf60: prio = BOOK3S_IRQPRIO_FAC_UNAVAIL;          break;
 165         default:    prio = BOOK3S_IRQPRIO_MAX;                  break;
 166         }
 167
 168         return prio;
 169 }
 170
 171 void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu *vcpu,
 172                                           unsigned int vec)
 173 {
 174         unsigned long old_pending = vcpu->arch.pending_exceptions;
 175
 176         clear_bit(kvmppc_book3s_vec2irqprio(vec),
 177                   &vcpu->arch.pending_exceptions);
 178
 179         kvmppc_update_int_pending(vcpu, vcpu->arch.pending_exceptions,
 180                                   old_pending);
 181 }
 182
 183 void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec)
 184 {
 185         vcpu->stat.queue_intr++;
 186
 187         set_bit(kvmppc_book3s_vec2irqprio(vec),
 188                 &vcpu->arch.pending_exceptions);
 189 #ifdef EXIT_DEBUG
 190         printk(KERN_INFO "Queueing interrupt %x\n", vec);
 191 #endif
 192 }
 193 EXPORT_SYMBOL_GPL(kvmppc_book3s_queue_irqprio);
 194
 195 void kvmppc_core_queue_machine_check(struct kvm_vcpu *vcpu, ulong flags)
 196 {
 197         /* might as well deliver this straight away */
 198         kvmppc_inject_interrupt(vcpu, BOOK3S_INTERRUPT_MACHINE_CHECK, flags);
 199 }
 200 EXPORT_SYMBOL_GPL(kvmppc_core_queue_machine_check);
 201
 202 void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags)
 203 {
 204         /* might as well deliver this straight away */
 205         kvmppc_inject_interrupt(vcpu, BOOK3S_INTERRUPT_PROGRAM, flags);
 206 }
 207 EXPORT_SYMBOL_GPL(kvmppc_core_queue_program);
 208
 209 void kvmppc_core_queue_fpunavail(struct kvm_vcpu *vcpu)
 210 {
 211         /* might as well deliver this straight away */
 212         kvmppc_inject_interrupt(vcpu, BOOK3S_INTERRUPT_FP_UNAVAIL, 0);
 213 }
 214
 215 void kvmppc_core_queue_vec_unavail(struct kvm_vcpu *vcpu)
 216 {
 217         /* might as well deliver this straight away */
 218         kvmppc_inject_interrupt(vcpu, BOOK3S_INTERRUPT_ALTIVEC, 0);
 219 }
 220
 221 void kvmppc_core_queue_vsx_unavail(struct kvm_vcpu *vcpu)
 222 {
 223         /* might as well deliver this straight away */
 224         kvmppc_inject_interrupt(vcpu, BOOK3S_INTERRUPT_VSX, 0);
 225 }
 226
 227 void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu)
 228 {
 229         kvmppc_book3s_queue_irqprio(vcpu, BOOK3S_INTERRUPT_DECREMENTER);
 230 }
 231 EXPORT_SYMBOL_GPL(kvmppc_core_queue_dec);
 232
 233 int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu)
 234 {
 235         return test_bit(BOOK3S_IRQPRIO_DECREMENTER, &vcpu->arch.pending_exceptions);
 236 }
 237 EXPORT_SYMBOL_GPL(kvmppc_core_pending_dec);
 238
 239 void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu)
 240 {
 241         kvmppc_book3s_dequeue_irqprio(vcpu, BOOK3S_INTERRUPT_DECREMENTER);
 242 }
 243 EXPORT_SYMBOL_GPL(kvmppc_core_dequeue_dec);
 244
 245 void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,
 246                                 struct kvm_interrupt *irq)
 247 {
 248         /*
 249          * This case (KVM_INTERRUPT_SET) should never actually arise for
 250          * a pseries guest (because pseries guests expect their interrupt
 251          * controllers to continue asserting an external interrupt request
 252          * until it is acknowledged at the interrupt controller), but is
 253          * included to avoid ABI breakage and potentially for other
 254          * sorts of guest.
 255          *
 256          * There is a subtlety here: HV KVM does not test the
 257          * external_oneshot flag in the code that synthesizes
 258          * external interrupts for the guest just before entering
 259          * the guest.  That is OK even if userspace did do a
 260          * KVM_INTERRUPT_SET on a pseries guest vcpu, because the
 261          * caller (kvm_vcpu_ioctl_interrupt) does a kvm_vcpu_kick()
 262          * which ends up doing a smp_send_reschedule(), which will
 263          * pull the guest all the way out to the host, meaning that
 264          * we will call kvmppc_core_prepare_to_enter() before entering
 265          * the guest again, and that will handle the external_oneshot
 266          * flag correctly.
 267          */
 268         if (irq->irq == KVM_INTERRUPT_SET)
 269                 vcpu->arch.external_oneshot = 1;
 270
 271         kvmppc_book3s_queue_irqprio(vcpu, BOOK3S_INTERRUPT_EXTERNAL);
 272 }
 273
 274 void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu)
 275 {
 276         kvmppc_book3s_dequeue_irqprio(vcpu, BOOK3S_INTERRUPT_EXTERNAL);
 277 }
 278
 279 void kvmppc_core_queue_data_storage(struct kvm_vcpu *vcpu, ulong dar,
 280                                     ulong flags)
 281 {
 282         kvmppc_set_dar(vcpu, dar);
 283         kvmppc_set_dsisr(vcpu, flags);
 284         kvmppc_inject_interrupt(vcpu, BOOK3S_INTERRUPT_DATA_STORAGE, 0);
 285 }
 286 EXPORT_SYMBOL_GPL(kvmppc_core_queue_data_storage);
 287
 288 void kvmppc_core_queue_inst_storage(struct kvm_vcpu *vcpu, ulong flags)
 289 {
 290         kvmppc_inject_interrupt(vcpu, BOOK3S_INTERRUPT_INST_STORAGE, flags);
 291 }
 292 EXPORT_SYMBOL_GPL(kvmppc_core_queue_inst_storage);
 293
 294 static int kvmppc_book3s_irqprio_deliver(struct kvm_vcpu *vcpu,
 295                                          unsigned int priority)
 296 {
 297         int deliver = 1;
 298         int vec = 0;
 299         bool crit = kvmppc_critical_section(vcpu);
 300
 301         switch (priority) {
 302         case BOOK3S_IRQPRIO_DECREMENTER:
 303                 deliver = (kvmppc_get_msr(vcpu) & MSR_EE) && !crit;
 304                 vec = BOOK3S_INTERRUPT_DECREMENTER;
 305                 break;
 306         case BOOK3S_IRQPRIO_EXTERNAL:
 307                 deliver = (kvmppc_get_msr(vcpu) & MSR_EE) && !crit;
 308                 vec = BOOK3S_INTERRUPT_EXTERNAL;
 309                 break;
 310         case BOOK3S_IRQPRIO_SYSTEM_RESET:
 311                 vec = BOOK3S_INTERRUPT_SYSTEM_RESET;
 312                 break;
 313         case BOOK3S_IRQPRIO_MACHINE_CHECK:
 314                 vec = BOOK3S_INTERRUPT_MACHINE_CHECK;
 315                 break;
 316         case BOOK3S_IRQPRIO_DATA_STORAGE:
 317                 vec = BOOK3S_INTERRUPT_DATA_STORAGE;
 318                 break;
 319         case BOOK3S_IRQPRIO_INST_STORAGE:
 320                 vec = BOOK3S_INTERRUPT_INST_STORAGE;
 321                 break;
 322         case BOOK3S_IRQPRIO_DATA_SEGMENT:
 323                 vec = BOOK3S_INTERRUPT_DATA_SEGMENT;
 324                 break;
 325         case BOOK3S_IRQPRIO_INST_SEGMENT:
 326                 vec = BOOK3S_INTERRUPT_INST_SEGMENT;
 327                 break;
 328         case BOOK3S_IRQPRIO_ALIGNMENT:
 329                 vec = BOOK3S_INTERRUPT_ALIGNMENT;
 330                 break;
 331         case BOOK3S_IRQPRIO_PROGRAM:
 332                 vec = BOOK3S_INTERRUPT_PROGRAM;
 333                 break;
 334         case BOOK3S_IRQPRIO_VSX:
 335                 vec = BOOK3S_INTERRUPT_VSX;
 336                 break;
 337         case BOOK3S_IRQPRIO_ALTIVEC:
 338                 vec = BOOK3S_INTERRUPT_ALTIVEC;
 339                 break;
 340         case BOOK3S_IRQPRIO_FP_UNAVAIL:
 341                 vec = BOOK3S_INTERRUPT_FP_UNAVAIL;
 342                 break;
 343         case BOOK3S_IRQPRIO_SYSCALL:
 344                 vec = BOOK3S_INTERRUPT_SYSCALL;
 345                 break;
 346         case BOOK3S_IRQPRIO_DEBUG:
 347                 vec = BOOK3S_INTERRUPT_TRACE;
 348                 break;
 349         case BOOK3S_IRQPRIO_PERFORMANCE_MONITOR:
 350                 vec = BOOK3S_INTERRUPT_PERFMON;
 351                 break;
 352         case BOOK3S_IRQPRIO_FAC_UNAVAIL:
 353                 vec = BOOK3S_INTERRUPT_FAC_UNAVAIL;
 354                 break;
 355         default:
 356                 deliver = 0;
 357                 printk(KERN_ERR "KVM: Unknown interrupt: 0x%x\n", priority);
 358                 break;
 359         }
 360
 361 #if 0
 362         printk(KERN_INFO "Deliver interrupt 0x%x? %x\n", vec, deliver);
 363 #endif
 364
 365         if (deliver)
 366                 kvmppc_inject_interrupt(vcpu, vec, 0);
 367
 368         return deliver;
 369 }
 370
 371 /*
 372  * This function determines if an irqprio should be cleared once issued.
 373  */
 374 static bool clear_irqprio(struct kvm_vcpu *vcpu, unsigned int priority)
 375 {
 376         switch (priority) {
 377                 case BOOK3S_IRQPRIO_DECREMENTER:
 378                         /* DEC interrupts get cleared by mtdec */
 379                         return false;
 380                 case BOOK3S_IRQPRIO_EXTERNAL:
 381                         /*
 382                          * External interrupts get cleared by userspace
 383                          * except when set by the KVM_INTERRUPT ioctl with
 384                          * KVM_INTERRUPT_SET (not KVM_INTERRUPT_SET_LEVEL).
 385                          */
 386                         if (vcpu->arch.external_oneshot) {
 387                                 vcpu->arch.external_oneshot = 0;
 388                                 return true;
 389                         }
 390                         return false;
 391         }
 392
 393         return true;
 394 }
 395
 396 int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu)
 397 {
 398         unsigned long *pending = &vcpu->arch.pending_exceptions;
 399         unsigned long old_pending = vcpu->arch.pending_exceptions;
 400         unsigned int priority;
 401
 402 #ifdef EXIT_DEBUG
 403         if (vcpu->arch.pending_exceptions)
 404                 printk(KERN_EMERG "KVM: Check pending: %lx\n", vcpu->arch.pending_exceptions);
 405 #endif
 406         priority = __ffs(*pending);
 407         while (priority < BOOK3S_IRQPRIO_MAX) {
 408                 if (kvmppc_book3s_irqprio_deliver(vcpu, priority) &&
 409                     clear_irqprio(vcpu, priority)) {
 410                         clear_bit(priority, &vcpu->arch.pending_exceptions);
 411                         break;
 412                 }
 413
 414                 priority = find_next_bit(pending,
 415                                          BITS_PER_BYTE * sizeof(*pending),
 416                                          priority + 1);
 417         }
 418
 419         /* Tell the guest about our interrupt status */
 420         kvmppc_update_int_pending(vcpu, *pending, old_pending);
 421
 422         return 0;
 423 }
 424 EXPORT_SYMBOL_GPL(kvmppc_core_prepare_to_enter);
 425
 426 kvm_pfn_t kvmppc_gpa_to_pfn(struct kvm_vcpu *vcpu, gpa_t gpa, bool writing,
 427                         bool *writable)
 428 {
 429         ulong mp_pa = vcpu->arch.magic_page_pa & KVM_PAM;
 430         gfn_t gfn = gpa >> PAGE_SHIFT;
 431
 432         if (!(kvmppc_get_msr(vcpu) & MSR_SF))
 433                 mp_pa = (uint32_t)mp_pa;
 434
 435         /* Magic page override */
 436         gpa &= ~0xFFFULL;
 437         if (unlikely(mp_pa) && unlikely((gpa & KVM_PAM) == mp_pa)) {
 438                 ulong shared_page = ((ulong)vcpu->arch.shared) & PAGE_MASK;
 439                 kvm_pfn_t pfn;
 440
 441                 pfn = (kvm_pfn_t)virt_to_phys((void*)shared_page) >> PAGE_SHIFT;
 442                 get_page(pfn_to_page(pfn));
 443                 if (writable)
 444                         *writable = true;
 445                 return pfn;
 446         }
 447
 448         return gfn_to_pfn_prot(vcpu->kvm, gfn, writing, writable);
 449 }
 450 EXPORT_SYMBOL_GPL(kvmppc_gpa_to_pfn);
 451
 452 int kvmppc_xlate(struct kvm_vcpu *vcpu, ulong eaddr, enum xlate_instdata xlid,
 453                  enum xlate_readwrite xlrw, struct kvmppc_pte *pte)
 454 {
 455         bool data = (xlid == XLATE_DATA);
 456         bool iswrite = (xlrw == XLATE_WRITE);
 457         int relocated = (kvmppc_get_msr(vcpu) & (data ? MSR_DR : MSR_IR));
 458         int r;
 459
 460         if (relocated) {
 461                 r = vcpu->arch.mmu.xlate(vcpu, eaddr, pte, data, iswrite);
 462         } else {
 463                 pte->eaddr = eaddr;
 464                 pte->raddr = eaddr & KVM_PAM;
 465                 pte->vpage = VSID_REAL | eaddr >> 12;
 466                 pte->may_read = true;
 467                 pte->may_write = true;
 468                 pte->may_execute = true;
 469                 r = 0;
 470
 471                 if ((kvmppc_get_msr(vcpu) & (MSR_IR | MSR_DR)) == MSR_DR &&
 472                     !data) {
 473                         if ((vcpu->arch.hflags & BOOK3S_HFLAG_SPLIT_HACK) &&
 474                             ((eaddr & SPLIT_HACK_MASK) == SPLIT_HACK_OFFS))
 475                         pte->raddr &= ~SPLIT_HACK_MASK;
 476                 }
 477         }
 478
 479         return r;
 480 }
 481
 482 int kvmppc_load_last_inst(struct kvm_vcpu *vcpu,
 483                 enum instruction_fetch_type type, u32 *inst)
 484 {
 485         ulong pc = kvmppc_get_pc(vcpu);
 486         int r;
 487
 488         if (type == INST_SC)
 489                 pc -= 4;
 490
 491         r = kvmppc_ld(vcpu, &pc, sizeof(u32), inst, false);
 492         if (r == EMULATE_DONE)
 493                 return r;
 494         else
 495                 return EMULATE_AGAIN;
 496 }
 497 EXPORT_SYMBOL_GPL(kvmppc_load_last_inst);
 498
 499 int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
 500 {
 501         return 0;
 502 }
 503
 504 int kvmppc_subarch_vcpu_init(struct kvm_vcpu *vcpu)
 505 {
 506         return 0;
 507 }
 508
 509 void kvmppc_subarch_vcpu_uninit(struct kvm_vcpu *vcpu)
 510 {
 511 }
 512
 513 int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
 514                                   struct kvm_sregs *sregs)
 515 {
 516         int ret;
 517
 518         vcpu_load(vcpu);
 519         ret = vcpu->kvm->arch.kvm_ops->get_sregs(vcpu, sregs);
 520         vcpu_put(vcpu);
 521
 522         return ret;
 523 }
 524
 525 int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
 526                                   struct kvm_sregs *sregs)
 527 {
 528         int ret;
 529
 530         vcpu_load(vcpu);
 531         ret = vcpu->kvm->arch.kvm_ops->set_sregs(vcpu, sregs);
 532         vcpu_put(vcpu);
 533
 534         return ret;
 535 }
 536
 537 int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
 538 {
 539         int i;
 540
 541         regs->pc = kvmppc_get_pc(vcpu);
 542         regs->cr = kvmppc_get_cr(vcpu);
 543         regs->ctr = kvmppc_get_ctr(vcpu);
 544         regs->lr = kvmppc_get_lr(vcpu);
 545         regs->xer = kvmppc_get_xer(vcpu);
 546         regs->msr = kvmppc_get_msr(vcpu);
 547         regs->srr0 = kvmppc_get_srr0(vcpu);
 548         regs->srr1 = kvmppc_get_srr1(vcpu);
 549         regs->pid = vcpu->arch.pid;
 550         regs->sprg0 = kvmppc_get_sprg0(vcpu);
 551         regs->sprg1 = kvmppc_get_sprg1(vcpu);
 552         regs->sprg2 = kvmppc_get_sprg2(vcpu);
 553         regs->sprg3 = kvmppc_get_sprg3(vcpu);
 554         regs->sprg4 = kvmppc_get_sprg4(vcpu);
 555         regs->sprg5 = kvmppc_get_sprg5(vcpu);
 556         regs->sprg6 = kvmppc_get_sprg6(vcpu);
 557         regs->sprg7 = kvmppc_get_sprg7(vcpu);
 558
 559         for (i = 0; i < ARRAY_SIZE(regs->gpr); i++)
 560                 regs->gpr[i] = kvmppc_get_gpr(vcpu, i);
 561
 562         return 0;
 563 }
 564
 565 int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
 566 {
 567         int i;
 568
 569         kvmppc_set_pc(vcpu, regs->pc);
 570         kvmppc_set_cr(vcpu, regs->cr);
 571         kvmppc_set_ctr(vcpu, regs->ctr);
 572         kvmppc_set_lr(vcpu, regs->lr);
 573         kvmppc_set_xer(vcpu, regs->xer);
 574         kvmppc_set_msr(vcpu, regs->msr);
 575         kvmppc_set_srr0(vcpu, regs->srr0);
 576         kvmppc_set_srr1(vcpu, regs->srr1);
 577         kvmppc_set_sprg0(vcpu, regs->sprg0);
 578         kvmppc_set_sprg1(vcpu, regs->sprg1);
 579         kvmppc_set_sprg2(vcpu, regs->sprg2);
 580         kvmppc_set_sprg3(vcpu, regs->sprg3);
 581         kvmppc_set_sprg4(vcpu, regs->sprg4);
 582         kvmppc_set_sprg5(vcpu, regs->sprg5);
 583         kvmppc_set_sprg6(vcpu, regs->sprg6);
 584         kvmppc_set_sprg7(vcpu, regs->sprg7);
 585
 586         for (i = 0; i < ARRAY_SIZE(regs->gpr); i++)
 587                 kvmppc_set_gpr(vcpu, i, regs->gpr[i]);
 588
 589         return 0;
 590 }
 591
 592 int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
 593 {
 594         return -ENOTSUPP;
 595 }
 596
 597 int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
 598 {
 599         return -ENOTSUPP;
 600 }
 601
 602 int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id,
 603                         union kvmppc_one_reg *val)
 604 {
 605         int r = 0;
 606         long int i;
 607
 608         r = vcpu->kvm->arch.kvm_ops->get_one_reg(vcpu, id, val);
 609         if (r == -EINVAL) {
 610                 r = 0;
 611                 switch (id) {
 612                 case KVM_REG_PPC_DAR:
 613                         *val = get_reg_val(id, kvmppc_get_dar(vcpu));
 614                         break;
 615                 case KVM_REG_PPC_DSISR:
 616                         *val = get_reg_val(id, kvmppc_get_dsisr(vcpu));
 617                         break;
 618                 case KVM_REG_PPC_FPR0 ... KVM_REG_PPC_FPR31:
 619                         i = id - KVM_REG_PPC_FPR0;
 620                         *val = get_reg_val(id, VCPU_FPR(vcpu, i));
 621                         break;
 622                 case KVM_REG_PPC_FPSCR:
 623                         *val = get_reg_val(id, vcpu->arch.fp.fpscr);
 624                         break;
 625 #ifdef CONFIG_VSX
 626                 case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31:
 627                         if (cpu_has_feature(CPU_FTR_VSX)) {
 628                                 i = id - KVM_REG_PPC_VSR0;
 629                                 val->vsxval[0] = vcpu->arch.fp.fpr[i][0];
 630                                 val->vsxval[1] = vcpu->arch.fp.fpr[i][1];
 631                         } else {
 632                                 r = -ENXIO;
 633                         }
 634                         break;
 635 #endif /* CONFIG_VSX */
 636                 case KVM_REG_PPC_DEBUG_INST:
 637                         *val = get_reg_val(id, INS_TW);
 638                         break;
 639 #ifdef CONFIG_KVM_XICS
 640                 case KVM_REG_PPC_ICP_STATE:
 641                         if (!vcpu->arch.icp && !vcpu->arch.xive_vcpu) {
 642                                 r = -ENXIO;
 643                                 break;
 644                         }
 645                         if (xics_on_xive())
 646                                 *val = get_reg_val(id, kvmppc_xive_get_icp(vcpu));
 647                         else
 648                                 *val = get_reg_val(id, kvmppc_xics_get_icp(vcpu));
 649                         break;
 650 #endif /* CONFIG_KVM_XICS */
 651 #ifdef CONFIG_KVM_XIVE
 652                 case KVM_REG_PPC_VP_STATE:
 653                         if (!vcpu->arch.xive_vcpu) {
 654                                 r = -ENXIO;
 655                                 break;
 656                         }
 657                         if (xive_enabled())
 658                                 r = kvmppc_xive_native_get_vp(vcpu, val);
 659                         else
 660                                 r = -ENXIO;
 661                         break;
 662 #endif /* CONFIG_KVM_XIVE */
 663                 case KVM_REG_PPC_FSCR:
 664                         *val = get_reg_val(id, vcpu->arch.fscr);
 665                         break;
 666                 case KVM_REG_PPC_TAR:
 667                         *val = get_reg_val(id, vcpu->arch.tar);
 668                         break;
 669                 case KVM_REG_PPC_EBBHR:
 670                         *val = get_reg_val(id, vcpu->arch.ebbhr);
 671                         break;
 672                 case KVM_REG_PPC_EBBRR:
 673                         *val = get_reg_val(id, vcpu->arch.ebbrr);
 674                         break;
 675                 case KVM_REG_PPC_BESCR:
 676                         *val = get_reg_val(id, vcpu->arch.bescr);
 677                         break;
 678                 case KVM_REG_PPC_IC:
 679                         *val = get_reg_val(id, vcpu->arch.ic);
 680                         break;
 681                 default:
 682                         r = -EINVAL;
 683                         break;
 684                 }
 685         }
 686
 687         return r;
 688 }
 689
 690 int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id,
 691                         union kvmppc_one_reg *val)
 692 {
 693         int r = 0;
 694         long int i;
 695
 696         r = vcpu->kvm->arch.kvm_ops->set_one_reg(vcpu, id, val);
 697         if (r == -EINVAL) {
 698                 r = 0;
 699                 switch (id) {
 700                 case KVM_REG_PPC_DAR:
 701                         kvmppc_set_dar(vcpu, set_reg_val(id, *val));
 702                         break;
 703                 case KVM_REG_PPC_DSISR:
 704                         kvmppc_set_dsisr(vcpu, set_reg_val(id, *val));
 705                         break;
 706                 case KVM_REG_PPC_FPR0 ... KVM_REG_PPC_FPR31:
 707                         i = id - KVM_REG_PPC_FPR0;
 708                         VCPU_FPR(vcpu, i) = set_reg_val(id, *val);
 709                         break;
 710                 case KVM_REG_PPC_FPSCR:
 711                         vcpu->arch.fp.fpscr = set_reg_val(id, *val);
 712                         break;
 713 #ifdef CONFIG_VSX
 714                 case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31:
 715                         if (cpu_has_feature(CPU_FTR_VSX)) {
 716                                 i = id - KVM_REG_PPC_VSR0;
 717                                 vcpu->arch.fp.fpr[i][0] = val->vsxval[0];
 718                                 vcpu->arch.fp.fpr[i][1] = val->vsxval[1];
 719                         } else {
 720                                 r = -ENXIO;
 721                         }
 722                         break;
 723 #endif /* CONFIG_VSX */
 724 #ifdef CONFIG_KVM_XICS
 725                 case KVM_REG_PPC_ICP_STATE:
 726                         if (!vcpu->arch.icp && !vcpu->arch.xive_vcpu) {
 727                                 r = -ENXIO;
 728                                 break;
 729                         }
 730                         if (xics_on_xive())
 731                                 r = kvmppc_xive_set_icp(vcpu, set_reg_val(id, *val));
 732                         else
 733                                 r = kvmppc_xics_set_icp(vcpu, set_reg_val(id, *val));
 734                         break;
 735 #endif /* CONFIG_KVM_XICS */
 736 #ifdef CONFIG_KVM_XIVE
 737                 case KVM_REG_PPC_VP_STATE:
 738                         if (!vcpu->arch.xive_vcpu) {
 739                                 r = -ENXIO;
 740                                 break;
 741                         }
 742                         if (xive_enabled())
 743                                 r = kvmppc_xive_native_set_vp(vcpu, val);
 744                         else
 745                                 r = -ENXIO;
 746                         break;
 747 #endif /* CONFIG_KVM_XIVE */
 748                 case KVM_REG_PPC_FSCR:
 749                         vcpu->arch.fscr = set_reg_val(id, *val);
 750                         break;
 751                 case KVM_REG_PPC_TAR:
 752                         vcpu->arch.tar = set_reg_val(id, *val);
 753                         break;
 754                 case KVM_REG_PPC_EBBHR:
 755                         vcpu->arch.ebbhr = set_reg_val(id, *val);
 756                         break;
 757                 case KVM_REG_PPC_EBBRR:
 758                         vcpu->arch.ebbrr = set_reg_val(id, *val);
 759                         break;
 760                 case KVM_REG_PPC_BESCR:
 761                         vcpu->arch.bescr = set_reg_val(id, *val);
 762                         break;
 763                 case KVM_REG_PPC_IC:
 764                         vcpu->arch.ic = set_reg_val(id, *val);
 765                         break;
 766                 default:
 767                         r = -EINVAL;
 768                         break;
 769                 }
 770         }
 771
 772         return r;
 773 }
 774
 775 void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 776 {
 777         vcpu->kvm->arch.kvm_ops->vcpu_load(vcpu, cpu);
 778 }
 779
 780 void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu)
 781 {
 782         vcpu->kvm->arch.kvm_ops->vcpu_put(vcpu);
 783 }
 784
 785 void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 msr)
 786 {
 787         vcpu->kvm->arch.kvm_ops->set_msr(vcpu, msr);
 788 }
 789 EXPORT_SYMBOL_GPL(kvmppc_set_msr);
 790
 791 int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
 792 {
 793         return vcpu->kvm->arch.kvm_ops->vcpu_run(kvm_run, vcpu);
 794 }
 795
 796 int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
 797                                   struct kvm_translation *tr)
 798 {
 799         return 0;
 800 }
 801
 802 int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
 803                                         struct kvm_guest_debug *dbg)
 804 {
 805         vcpu_load(vcpu);
 806         vcpu->guest_debug = dbg->control;
 807         vcpu_put(vcpu);
 808         return 0;
 809 }
 810
 811 void kvmppc_decrementer_func(struct kvm_vcpu *vcpu)
 812 {
 813         kvmppc_core_queue_dec(vcpu);
 814         kvm_vcpu_kick(vcpu);
 815 }
 816
 817 struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
 818 {
 819         return kvm->arch.kvm_ops->vcpu_create(kvm, id);
 820 }
 821
 822 void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
 823 {
 824         vcpu->kvm->arch.kvm_ops->vcpu_free(vcpu);
 825 }
 826
 827 int kvmppc_core_check_requests(struct kvm_vcpu *vcpu)
 828 {
 829         return vcpu->kvm->arch.kvm_ops->check_requests(vcpu);
 830 }
 831
 832 int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log *log)
 833 {
 834         return kvm->arch.kvm_ops->get_dirty_log(kvm, log);
 835 }
 836
 837 void kvmppc_core_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free,
 838                               struct kvm_memory_slot *dont)
 839 {
 840         kvm->arch.kvm_ops->free_memslot(free, dont);
 841 }
 842
 843 int kvmppc_core_create_memslot(struct kvm *kvm, struct kvm_memory_slot *slot,
 844                                unsigned long npages)
 845 {
 846         return kvm->arch.kvm_ops->create_memslot(slot, npages);
 847 }
 848
 849 void kvmppc_core_flush_memslot(struct kvm *kvm, struct kvm_memory_slot *memslot)
 850 {
 851         kvm->arch.kvm_ops->flush_memslot(kvm, memslot);
 852 }
 853
 854 int kvmppc_core_prepare_memory_region(struct kvm *kvm,
 855                                 struct kvm_memory_slot *memslot,
 856                                 const struct kvm_userspace_memory_region *mem)
 857 {
 858         return kvm->arch.kvm_ops->prepare_memory_region(kvm, memslot, mem);
 859 }
 860
 861 void kvmppc_core_commit_memory_region(struct kvm *kvm,
 862                                 const struct kvm_userspace_memory_region *mem,
 863                                 const struct kvm_memory_slot *old,
 864                                 const struct kvm_memory_slot *new,
 865                                 enum kvm_mr_change change)
 866 {
 867         kvm->arch.kvm_ops->commit_memory_region(kvm, mem, old, new, change);
 868 }
 869
 870 int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end)
 871 {
 872         return kvm->arch.kvm_ops->unmap_hva_range(kvm, start, end);
 873 }
 874
 875 int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end)
 876 {
 877         return kvm->arch.kvm_ops->age_hva(kvm, start, end);
 878 }
 879
 880 int kvm_test_age_hva(struct kvm *kvm, unsigned long hva)
 881 {
 882         return kvm->arch.kvm_ops->test_age_hva(kvm, hva);
 883 }
 884
 885 int kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte)
 886 {
 887         kvm->arch.kvm_ops->set_spte_hva(kvm, hva, pte);
 888         return 0;
 889 }
 890
 891 void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu)
 892 {
 893         vcpu->kvm->arch.kvm_ops->mmu_destroy(vcpu);
 894 }
 895
 896 int kvmppc_core_init_vm(struct kvm *kvm)
 897 {
 898
 899 #ifdef CONFIG_PPC64
 900         INIT_LIST_HEAD_RCU(&kvm->arch.spapr_tce_tables);
 901         INIT_LIST_HEAD(&kvm->arch.rtas_tokens);
 902         mutex_init(&kvm->arch.rtas_token_lock);
 903 #endif
 904
 905         return kvm->arch.kvm_ops->init_vm(kvm);
 906 }
 907
 908 void kvmppc_core_destroy_vm(struct kvm *kvm)
 909 {
 910         kvm->arch.kvm_ops->destroy_vm(kvm);
 911
 912 #ifdef CONFIG_PPC64
 913         kvmppc_rtas_tokens_free(kvm);
 914         WARN_ON(!list_empty(&kvm->arch.spapr_tce_tables));
 915 #endif
 916
 917 #ifdef CONFIG_KVM_XICS
 918         /*
 919          * Free the XIVE devices which are not directly freed by the
 920          * device 'release' method
 921          */
 922         kfree(kvm->arch.xive_devices.native);
 923         kvm->arch.xive_devices.native = NULL;
 924         kfree(kvm->arch.xive_devices.xics_on_xive);
 925         kvm->arch.xive_devices.xics_on_xive = NULL;
 926 #endif /* CONFIG_KVM_XICS */
 927 }
 928
 929 int kvmppc_h_logical_ci_load(struct kvm_vcpu *vcpu)
 930 {
 931         unsigned long size = kvmppc_get_gpr(vcpu, 4);
 932         unsigned long addr = kvmppc_get_gpr(vcpu, 5);
 933         u64 buf;
 934         int srcu_idx;
 935         int ret;
 936
 937         if (!is_power_of_2(size) || (size > sizeof(buf)))
 938                 return H_TOO_HARD;
 939
 940         srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
 941         ret = kvm_io_bus_read(vcpu, KVM_MMIO_BUS, addr, size, &buf);
 942         srcu_read_unlock(&vcpu->kvm->srcu, srcu_idx);
 943         if (ret != 0)
 944                 return H_TOO_HARD;
 945
 946         switch (size) {
 947         case 1:
 948                 kvmppc_set_gpr(vcpu, 4, *(u8 *)&buf);
 949                 break;
 950
 951         case 2:
 952                 kvmppc_set_gpr(vcpu, 4, be16_to_cpu(*(__be16 *)&buf));
 953                 break;
 954
 955         case 4:
 956                 kvmppc_set_gpr(vcpu, 4, be32_to_cpu(*(__be32 *)&buf));
 957                 break;
 958
 959         case 8:
 960                 kvmppc_set_gpr(vcpu, 4, be64_to_cpu(*(__be64 *)&buf));
 961                 break;
 962
 963         default:
 964                 BUG();
 965         }
 966
 967         return H_SUCCESS;
 968 }
 969 EXPORT_SYMBOL_GPL(kvmppc_h_logical_ci_load);
 970
 971 int kvmppc_h_logical_ci_store(struct kvm_vcpu *vcpu)
 972 {
 973         unsigned long size = kvmppc_get_gpr(vcpu, 4);
 974         unsigned long addr = kvmppc_get_gpr(vcpu, 5);
 975         unsigned long val = kvmppc_get_gpr(vcpu, 6);
 976         u64 buf;
 977         int srcu_idx;
 978         int ret;
 979
 980         switch (size) {
 981         case 1:
 982                 *(u8 *)&buf = val;
 983                 break;
 984
 985         case 2:
 986                 *(__be16 *)&buf = cpu_to_be16(val);
 987                 break;
 988
 989         case 4:
 990                 *(__be32 *)&buf = cpu_to_be32(val);
 991                 break;
 992
 993         case 8:
 994                 *(__be64 *)&buf = cpu_to_be64(val);
 995                 break;
 996
 997         default:
 998                 return H_TOO_HARD;
 999         }
1000
1001         srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
1002         ret = kvm_io_bus_write(vcpu, KVM_MMIO_BUS, addr, size, &buf);
1003         srcu_read_unlock(&vcpu->kvm->srcu, srcu_idx);
1004         if (ret != 0)
1005                 return H_TOO_HARD;
1006
1007         return H_SUCCESS;
1008 }
1009 EXPORT_SYMBOL_GPL(kvmppc_h_logical_ci_store);
1010
1011 int kvmppc_core_check_processor_compat(void)
1012 {
1013         /*
1014          * We always return 0 for book3s. We check
1015          * for compatibility while loading the HV
1016          * or PR module
1017          */
1018         return 0;
1019 }
1020
1021 int kvmppc_book3s_hcall_implemented(struct kvm *kvm, unsigned long hcall)
1022 {
1023         return kvm->arch.kvm_ops->hcall_implemented(hcall);
1024 }
1025
1026 #ifdef CONFIG_KVM_XICS
1027 int kvm_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, int level,
1028                 bool line_status)
1029 {
1030         if (xics_on_xive())
1031                 return kvmppc_xive_set_irq(kvm, irq_source_id, irq, level,
1032                                            line_status);
1033         else
1034                 return kvmppc_xics_set_irq(kvm, irq_source_id, irq, level,
1035                                            line_status);
1036 }
1037
1038 int kvm_arch_set_irq_inatomic(struct kvm_kernel_irq_routing_entry *irq_entry,
1039                               struct kvm *kvm, int irq_source_id,
1040                               int level, bool line_status)
1041 {
1042         return kvm_set_irq(kvm, irq_source_id, irq_entry->gsi,
1043                            level, line_status);
1044 }
1045 static int kvmppc_book3s_set_irq(struct kvm_kernel_irq_routing_entry *e,
1046                                  struct kvm *kvm, int irq_source_id, int level,
1047                                  bool line_status)
1048 {
1049         return kvm_set_irq(kvm, irq_source_id, e->gsi, level, line_status);
1050 }
1051
1052 int kvm_irq_map_gsi(struct kvm *kvm,
1053                     struct kvm_kernel_irq_routing_entry *entries, int gsi)
1054 {
1055         entries->gsi = gsi;
1056         entries->type = KVM_IRQ_ROUTING_IRQCHIP;
1057         entries->set = kvmppc_book3s_set_irq;
1058         entries->irqchip.irqchip = 0;
1059         entries->irqchip.pin = gsi;
1060         return 1;
1061 }
1062
1063 int kvm_irq_map_chip_pin(struct kvm *kvm, unsigned irqchip, unsigned pin)
1064 {
1065         return pin;
1066 }
1067
1068 #endif /* CONFIG_KVM_XICS */
1069
1070 static int kvmppc_book3s_init(void)
1071 {
1072         int r;
1073
1074         r = kvm_init(NULL, sizeof(struct kvm_vcpu), 0, THIS_MODULE);
1075         if (r)
1076                 return r;
1077 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
1078         r = kvmppc_book3s_init_pr();
1079 #endif
1080
1081 #ifdef CONFIG_KVM_XICS
1082 #ifdef CONFIG_KVM_XIVE
1083         if (xics_on_xive()) {
1084                 kvmppc_xive_init_module();
1085                 kvm_register_device_ops(&kvm_xive_ops, KVM_DEV_TYPE_XICS);
1086                 if (kvmppc_xive_native_supported()) {
1087                         kvmppc_xive_native_init_module();
1088                         kvm_register_device_ops(&kvm_xive_native_ops,
1089                                                 KVM_DEV_TYPE_XIVE);
1090                 }
1091         } else
1092 #endif
1093                 kvm_register_device_ops(&kvm_xics_ops, KVM_DEV_TYPE_XICS);
1094 #endif
1095         return r;
1096 }
1097
1098 static void kvmppc_book3s_exit(void)
1099 {
1100 #ifdef CONFIG_KVM_XICS
1101         if (xics_on_xive()) {
1102                 kvmppc_xive_exit_module();
1103                 kvmppc_xive_native_exit_module();
1104         }
1105 #endif
1106 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
1107         kvmppc_book3s_exit_pr();
1108 #endif
1109         kvm_exit();
1110 }
1111
1112 module_init(kvmppc_book3s_init);
1113 module_exit(kvmppc_book3s_exit);
1114
1115 /* On 32bit this is our one and only kernel module */
1116 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
1117 MODULE_ALIAS_MISCDEV(KVM_MINOR);
1118 MODULE_ALIAS("devname:kvm");
1119 #endif