arch/powerpc/kvm/book3s_pr.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  *    Paul Mackerras <paulus@samba.org>
   8  *
   9  * Description:
  10  * Functions relating to running KVM on Book 3S processors where
  11  * we don't have access to hypervisor mode, and we run the guest
  12  * in problem state (user mode).
  13  *
  14  * This file is derived from arch/powerpc/kvm/44x.c,
  15  * by Hollis Blanchard <hollisb@us.ibm.com>.
  16  *
  17  * This program is free software; you can redistribute it and/or modify
  18  * it under the terms of the GNU General Public License, version 2, as
  19  * published by the Free Software Foundation.
  20  */
  21
  22 #include <linux/kvm_host.h>
  23 #include <linux/export.h>
  24 #include <linux/err.h>
  25 #include <linux/slab.h>
  26
  27 #include <asm/reg.h>
  28 #include <asm/cputable.h>
  29 #include <asm/cacheflush.h>
  30 #include <asm/tlbflush.h>
  31 #include <asm/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/switch_to.h>
  37 #include <asm/firmware.h>
  38 #include <asm/hvcall.h>
  39 #include <linux/gfp.h>
  40 #include <linux/sched.h>
  41 #include <linux/vmalloc.h>
  42 #include <linux/highmem.h>
  43 #include <linux/module.h>
  44 #include <linux/miscdevice.h>
  45
  46 #include "book3s.h"
  47
  48 #define CREATE_TRACE_POINTS
  49 #include "trace_pr.h"
  50
  51 /* #define EXIT_DEBUG */
  52 /* #define DEBUG_EXT */
  53
  54 static int kvmppc_handle_ext(struct kvm_vcpu *vcpu, unsigned int exit_nr,
  55                              ulong msr);
  56 static void kvmppc_giveup_fac(struct kvm_vcpu *vcpu, ulong fac);
  57
  58 /* Some compatibility defines */
  59 #ifdef CONFIG_PPC_BOOK3S_32
  60 #define MSR_USER32 MSR_USER
  61 #define MSR_USER64 MSR_USER
  62 #define HW_PAGE_SIZE PAGE_SIZE
  63 #endif
  64
  65 static void kvmppc_core_vcpu_load_pr(struct kvm_vcpu *vcpu, int cpu)
  66 {
  67 #ifdef CONFIG_PPC_BOOK3S_64
  68         struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
  69         memcpy(svcpu->slb, to_book3s(vcpu)->slb_shadow, sizeof(svcpu->slb));
  70         svcpu->slb_max = to_book3s(vcpu)->slb_shadow_max;
  71         svcpu->in_use = 0;
  72         svcpu_put(svcpu);
  73 #endif
  74
  75         /* Disable AIL if supported */
  76         if (cpu_has_feature(CPU_FTR_HVMODE) &&
  77             cpu_has_feature(CPU_FTR_ARCH_207S))
  78                 mtspr(SPRN_LPCR, mfspr(SPRN_LPCR) & ~LPCR_AIL);
  79
  80         vcpu->cpu = smp_processor_id();
  81 #ifdef CONFIG_PPC_BOOK3S_32
  82         current->thread.kvm_shadow_vcpu = vcpu->arch.shadow_vcpu;
  83 #endif
  84 }
  85
  86 static void kvmppc_core_vcpu_put_pr(struct kvm_vcpu *vcpu)
  87 {
  88 #ifdef CONFIG_PPC_BOOK3S_64
  89         struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
  90         if (svcpu->in_use) {
  91                 kvmppc_copy_from_svcpu(vcpu, svcpu);
  92         }
  93         memcpy(to_book3s(vcpu)->slb_shadow, svcpu->slb, sizeof(svcpu->slb));
  94         to_book3s(vcpu)->slb_shadow_max = svcpu->slb_max;
  95         svcpu_put(svcpu);
  96 #endif
  97
  98         kvmppc_giveup_ext(vcpu, MSR_FP | MSR_VEC | MSR_VSX);
  99         kvmppc_giveup_fac(vcpu, FSCR_TAR_LG);
 100
 101         /* Enable AIL if supported */
 102         if (cpu_has_feature(CPU_FTR_HVMODE) &&
 103             cpu_has_feature(CPU_FTR_ARCH_207S))
 104                 mtspr(SPRN_LPCR, mfspr(SPRN_LPCR) | LPCR_AIL_3);
 105
 106         vcpu->cpu = -1;
 107 }
 108
 109 /* Copy data needed by real-mode code from vcpu to shadow vcpu */
 110 void kvmppc_copy_to_svcpu(struct kvmppc_book3s_shadow_vcpu *svcpu,
 111                           struct kvm_vcpu *vcpu)
 112 {
 113         svcpu->gpr[0] = vcpu->arch.gpr[0];
 114         svcpu->gpr[1] = vcpu->arch.gpr[1];
 115         svcpu->gpr[2] = vcpu->arch.gpr[2];
 116         svcpu->gpr[3] = vcpu->arch.gpr[3];
 117         svcpu->gpr[4] = vcpu->arch.gpr[4];
 118         svcpu->gpr[5] = vcpu->arch.gpr[5];
 119         svcpu->gpr[6] = vcpu->arch.gpr[6];
 120         svcpu->gpr[7] = vcpu->arch.gpr[7];
 121         svcpu->gpr[8] = vcpu->arch.gpr[8];
 122         svcpu->gpr[9] = vcpu->arch.gpr[9];
 123         svcpu->gpr[10] = vcpu->arch.gpr[10];
 124         svcpu->gpr[11] = vcpu->arch.gpr[11];
 125         svcpu->gpr[12] = vcpu->arch.gpr[12];
 126         svcpu->gpr[13] = vcpu->arch.gpr[13];
 127         svcpu->cr  = vcpu->arch.cr;
 128         svcpu->xer = vcpu->arch.xer;
 129         svcpu->ctr = vcpu->arch.ctr;
 130         svcpu->lr  = vcpu->arch.lr;
 131         svcpu->pc  = vcpu->arch.pc;
 132 #ifdef CONFIG_PPC_BOOK3S_64
 133         svcpu->shadow_fscr = vcpu->arch.shadow_fscr;
 134 #endif
 135         /*
 136          * Now also save the current time base value. We use this
 137          * to find the guest purr and spurr value.
 138          */
 139         vcpu->arch.entry_tb = get_tb();
 140         vcpu->arch.entry_vtb = get_vtb();
 141         if (cpu_has_feature(CPU_FTR_ARCH_207S))
 142                 vcpu->arch.entry_ic = mfspr(SPRN_IC);
 143         svcpu->in_use = true;
 144 }
 145
 146 /* Copy data touched by real-mode code from shadow vcpu back to vcpu */
 147 void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu,
 148                             struct kvmppc_book3s_shadow_vcpu *svcpu)
 149 {
 150         /*
 151          * vcpu_put would just call us again because in_use hasn't
 152          * been updated yet.
 153          */
 154         preempt_disable();
 155
 156         /*
 157          * Maybe we were already preempted and synced the svcpu from
 158          * our preempt notifiers. Don't bother touching this svcpu then.
 159          */
 160         if (!svcpu->in_use)
 161                 goto out;
 162
 163         vcpu->arch.gpr[0] = svcpu->gpr[0];
 164         vcpu->arch.gpr[1] = svcpu->gpr[1];
 165         vcpu->arch.gpr[2] = svcpu->gpr[2];
 166         vcpu->arch.gpr[3] = svcpu->gpr[3];
 167         vcpu->arch.gpr[4] = svcpu->gpr[4];
 168         vcpu->arch.gpr[5] = svcpu->gpr[5];
 169         vcpu->arch.gpr[6] = svcpu->gpr[6];
 170         vcpu->arch.gpr[7] = svcpu->gpr[7];
 171         vcpu->arch.gpr[8] = svcpu->gpr[8];
 172         vcpu->arch.gpr[9] = svcpu->gpr[9];
 173         vcpu->arch.gpr[10] = svcpu->gpr[10];
 174         vcpu->arch.gpr[11] = svcpu->gpr[11];
 175         vcpu->arch.gpr[12] = svcpu->gpr[12];
 176         vcpu->arch.gpr[13] = svcpu->gpr[13];
 177         vcpu->arch.cr  = svcpu->cr;
 178         vcpu->arch.xer = svcpu->xer;
 179         vcpu->arch.ctr = svcpu->ctr;
 180         vcpu->arch.lr  = svcpu->lr;
 181         vcpu->arch.pc  = svcpu->pc;
 182         vcpu->arch.shadow_srr1 = svcpu->shadow_srr1;
 183         vcpu->arch.fault_dar   = svcpu->fault_dar;
 184         vcpu->arch.fault_dsisr = svcpu->fault_dsisr;
 185         vcpu->arch.last_inst   = svcpu->last_inst;
 186 #ifdef CONFIG_PPC_BOOK3S_64
 187         vcpu->arch.shadow_fscr = svcpu->shadow_fscr;
 188 #endif
 189         /*
 190          * Update purr and spurr using time base on exit.
 191          */
 192         vcpu->arch.purr += get_tb() - vcpu->arch.entry_tb;
 193         vcpu->arch.spurr += get_tb() - vcpu->arch.entry_tb;
 194         vcpu->arch.vtb += get_vtb() - vcpu->arch.entry_vtb;
 195         if (cpu_has_feature(CPU_FTR_ARCH_207S))
 196                 vcpu->arch.ic += mfspr(SPRN_IC) - vcpu->arch.entry_ic;
 197         svcpu->in_use = false;
 198
 199 out:
 200         preempt_enable();
 201 }
 202
 203 static int kvmppc_core_check_requests_pr(struct kvm_vcpu *vcpu)
 204 {
 205         int r = 1; /* Indicate we want to get back into the guest */
 206
 207         /* We misuse TLB_FLUSH to indicate that we want to clear
 208            all shadow cache entries */
 209         if (kvm_check_request(KVM_REQ_TLB_FLUSH, vcpu))
 210                 kvmppc_mmu_pte_flush(vcpu, 0, 0);
 211
 212         return r;
 213 }
 214
 215 /************* MMU Notifiers *************/
 216 static void do_kvm_unmap_hva(struct kvm *kvm, unsigned long start,
 217                              unsigned long end)
 218 {
 219         long i;
 220         struct kvm_vcpu *vcpu;
 221         struct kvm_memslots *slots;
 222         struct kvm_memory_slot *memslot;
 223
 224         slots = kvm_memslots(kvm);
 225         kvm_for_each_memslot(memslot, slots) {
 226                 unsigned long hva_start, hva_end;
 227                 gfn_t gfn, gfn_end;
 228
 229                 hva_start = max(start, memslot->userspace_addr);
 230                 hva_end = min(end, memslot->userspace_addr +
 231                                         (memslot->npages << PAGE_SHIFT));
 232                 if (hva_start >= hva_end)
 233                         continue;
 234                 /*
 235                  * {gfn(page) | page intersects with [hva_start, hva_end)} =
 236                  * {gfn, gfn+1, ..., gfn_end-1}.
 237                  */
 238                 gfn = hva_to_gfn_memslot(hva_start, memslot);
 239                 gfn_end = hva_to_gfn_memslot(hva_end + PAGE_SIZE - 1, memslot);
 240                 kvm_for_each_vcpu(i, vcpu, kvm)
 241                         kvmppc_mmu_pte_pflush(vcpu, gfn << PAGE_SHIFT,
 242                                               gfn_end << PAGE_SHIFT);
 243         }
 244 }
 245
 246 static int kvm_unmap_hva_pr(struct kvm *kvm, unsigned long hva)
 247 {
 248         trace_kvm_unmap_hva(hva);
 249
 250         do_kvm_unmap_hva(kvm, hva, hva + PAGE_SIZE);
 251
 252         return 0;
 253 }
 254
 255 static int kvm_unmap_hva_range_pr(struct kvm *kvm, unsigned long start,
 256                                   unsigned long end)
 257 {
 258         do_kvm_unmap_hva(kvm, start, end);
 259
 260         return 0;
 261 }
 262
 263 static int kvm_age_hva_pr(struct kvm *kvm, unsigned long hva)
 264 {
 265         /* XXX could be more clever ;) */
 266         return 0;
 267 }
 268
 269 static int kvm_test_age_hva_pr(struct kvm *kvm, unsigned long hva)
 270 {
 271         /* XXX could be more clever ;) */
 272         return 0;
 273 }
 274
 275 static void kvm_set_spte_hva_pr(struct kvm *kvm, unsigned long hva, pte_t pte)
 276 {
 277         /* The page will get remapped properly on its next fault */
 278         do_kvm_unmap_hva(kvm, hva, hva + PAGE_SIZE);
 279 }
 280
 281 /*****************************************/
 282
 283 static void kvmppc_recalc_shadow_msr(struct kvm_vcpu *vcpu)
 284 {
 285         ulong guest_msr = kvmppc_get_msr(vcpu);
 286         ulong smsr = guest_msr;
 287
 288         /* Guest MSR values */
 289         smsr &= MSR_FE0 | MSR_FE1 | MSR_SF | MSR_SE | MSR_BE | MSR_LE;
 290         /* Process MSR values */
 291         smsr |= MSR_ME | MSR_RI | MSR_IR | MSR_DR | MSR_PR | MSR_EE;
 292         /* External providers the guest reserved */
 293         smsr |= (guest_msr & vcpu->arch.guest_owned_ext);
 294         /* 64-bit Process MSR values */
 295 #ifdef CONFIG_PPC_BOOK3S_64
 296         smsr |= MSR_ISF | MSR_HV;
 297 #endif
 298         vcpu->arch.shadow_msr = smsr;
 299 }
 300
 301 static void kvmppc_set_msr_pr(struct kvm_vcpu *vcpu, u64 msr)
 302 {
 303         ulong old_msr = kvmppc_get_msr(vcpu);
 304
 305 #ifdef EXIT_DEBUG
 306         printk(KERN_INFO "KVM: Set MSR to 0x%llx\n", msr);
 307 #endif
 308
 309         msr &= to_book3s(vcpu)->msr_mask;
 310         kvmppc_set_msr_fast(vcpu, msr);
 311         kvmppc_recalc_shadow_msr(vcpu);
 312
 313         if (msr & MSR_POW) {
 314                 if (!vcpu->arch.pending_exceptions) {
 315                         kvm_vcpu_block(vcpu);
 316                         clear_bit(KVM_REQ_UNHALT, &vcpu->requests);
 317                         vcpu->stat.halt_wakeup++;
 318
 319                         /* Unset POW bit after we woke up */
 320                         msr &= ~MSR_POW;
 321                         kvmppc_set_msr_fast(vcpu, msr);
 322                 }
 323         }
 324
 325         if ((kvmppc_get_msr(vcpu) & (MSR_PR|MSR_IR|MSR_DR)) !=
 326                    (old_msr & (MSR_PR|MSR_IR|MSR_DR))) {
 327                 kvmppc_mmu_flush_segments(vcpu);
 328                 kvmppc_mmu_map_segment(vcpu, kvmppc_get_pc(vcpu));
 329
 330                 /* Preload magic page segment when in kernel mode */
 331                 if (!(msr & MSR_PR) && vcpu->arch.magic_page_pa) {
 332                         struct kvm_vcpu_arch *a = &vcpu->arch;
 333
 334                         if (msr & MSR_DR)
 335                                 kvmppc_mmu_map_segment(vcpu, a->magic_page_ea);
 336                         else
 337                                 kvmppc_mmu_map_segment(vcpu, a->magic_page_pa);
 338                 }
 339         }
 340
 341         /*
 342          * When switching from 32 to 64-bit, we may have a stale 32-bit
 343          * magic page around, we need to flush it. Typically 32-bit magic
 344          * page will be instanciated when calling into RTAS. Note: We
 345          * assume that such transition only happens while in kernel mode,
 346          * ie, we never transition from user 32-bit to kernel 64-bit with
 347          * a 32-bit magic page around.
 348          */
 349         if (vcpu->arch.magic_page_pa &&
 350             !(old_msr & MSR_PR) && !(old_msr & MSR_SF) && (msr & MSR_SF)) {
 351                 /* going from RTAS to normal kernel code */
 352                 kvmppc_mmu_pte_flush(vcpu, (uint32_t)vcpu->arch.magic_page_pa,
 353                                      ~0xFFFUL);
 354         }
 355
 356         /* Preload FPU if it's enabled */
 357         if (kvmppc_get_msr(vcpu) & MSR_FP)
 358                 kvmppc_handle_ext(vcpu, BOOK3S_INTERRUPT_FP_UNAVAIL, MSR_FP);
 359 }
 360
 361 void kvmppc_set_pvr_pr(struct kvm_vcpu *vcpu, u32 pvr)
 362 {
 363         u32 host_pvr;
 364
 365         vcpu->arch.hflags &= ~BOOK3S_HFLAG_SLB;
 366         vcpu->arch.pvr = pvr;
 367 #ifdef CONFIG_PPC_BOOK3S_64
 368         if ((pvr >= 0x330000) && (pvr < 0x70330000)) {
 369                 kvmppc_mmu_book3s_64_init(vcpu);
 370                 if (!to_book3s(vcpu)->hior_explicit)
 371                         to_book3s(vcpu)->hior = 0xfff00000;
 372                 to_book3s(vcpu)->msr_mask = 0xffffffffffffffffULL;
 373                 vcpu->arch.cpu_type = KVM_CPU_3S_64;
 374         } else
 375 #endif
 376         {
 377                 kvmppc_mmu_book3s_32_init(vcpu);
 378                 if (!to_book3s(vcpu)->hior_explicit)
 379                         to_book3s(vcpu)->hior = 0;
 380                 to_book3s(vcpu)->msr_mask = 0xffffffffULL;
 381                 vcpu->arch.cpu_type = KVM_CPU_3S_32;
 382         }
 383
 384         kvmppc_sanity_check(vcpu);
 385
 386         /* If we are in hypervisor level on 970, we can tell the CPU to
 387          * treat DCBZ as 32 bytes store */
 388         vcpu->arch.hflags &= ~BOOK3S_HFLAG_DCBZ32;
 389         if (vcpu->arch.mmu.is_dcbz32(vcpu) && (mfmsr() & MSR_HV) &&
 390             !strcmp(cur_cpu_spec->platform, "ppc970"))
 391                 vcpu->arch.hflags |= BOOK3S_HFLAG_DCBZ32;
 392
 393         /* Cell performs badly if MSR_FEx are set. So let's hope nobody
 394            really needs them in a VM on Cell and force disable them. */
 395         if (!strcmp(cur_cpu_spec->platform, "ppc-cell-be"))
 396                 to_book3s(vcpu)->msr_mask &= ~(MSR_FE0 | MSR_FE1);
 397
 398         /*
 399          * If they're asking for POWER6 or later, set the flag
 400          * indicating that we can do multiple large page sizes
 401          * and 1TB segments.
 402          * Also set the flag that indicates that tlbie has the large
 403          * page bit in the RB operand instead of the instruction.
 404          */
 405         switch (PVR_VER(pvr)) {
 406         case PVR_POWER6:
 407         case PVR_POWER7:
 408         case PVR_POWER7p:
 409         case PVR_POWER8:
 410                 vcpu->arch.hflags |= BOOK3S_HFLAG_MULTI_PGSIZE |
 411                         BOOK3S_HFLAG_NEW_TLBIE;
 412                 break;
 413         }
 414
 415 #ifdef CONFIG_PPC_BOOK3S_32
 416         /* 32 bit Book3S always has 32 byte dcbz */
 417         vcpu->arch.hflags |= BOOK3S_HFLAG_DCBZ32;
 418 #endif
 419
 420         /* On some CPUs we can execute paired single operations natively */
 421         asm ( "mfpvr %0" : "=r"(host_pvr));
 422         switch (host_pvr) {
 423         case 0x00080200:        /* lonestar 2.0 */
 424         case 0x00088202:        /* lonestar 2.2 */
 425         case 0x70000100:        /* gekko 1.0 */
 426         case 0x00080100:        /* gekko 2.0 */
 427         case 0x00083203:        /* gekko 2.3a */
 428         case 0x00083213:        /* gekko 2.3b */
 429         case 0x00083204:        /* gekko 2.4 */
 430         case 0x00083214:        /* gekko 2.4e (8SE) - retail HW2 */
 431         case 0x00087200:        /* broadway */
 432                 vcpu->arch.hflags |= BOOK3S_HFLAG_NATIVE_PS;
 433                 /* Enable HID2.PSE - in case we need it later */
 434                 mtspr(SPRN_HID2_GEKKO, mfspr(SPRN_HID2_GEKKO) | (1 << 29));
 435         }
 436 }
 437
 438 /* Book3s_32 CPUs always have 32 bytes cache line size, which Linux assumes. To
 439  * make Book3s_32 Linux work on Book3s_64, we have to make sure we trap dcbz to
 440  * emulate 32 bytes dcbz length.
 441  *
 442  * The Book3s_64 inventors also realized this case and implemented a special bit
 443  * in the HID5 register, which is a hypervisor ressource. Thus we can't use it.
 444  *
 445  * My approach here is to patch the dcbz instruction on executing pages.
 446  */
 447 static void kvmppc_patch_dcbz(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte)
 448 {
 449         struct page *hpage;
 450         u64 hpage_offset;
 451         u32 *page;
 452         int i;
 453
 454         hpage = gfn_to_page(vcpu->kvm, pte->raddr >> PAGE_SHIFT);
 455         if (is_error_page(hpage))
 456                 return;
 457
 458         hpage_offset = pte->raddr & ~PAGE_MASK;
 459         hpage_offset &= ~0xFFFULL;
 460         hpage_offset /= 4;
 461
 462         get_page(hpage);
 463         page = kmap_atomic(hpage);
 464
 465         /* patch dcbz into reserved instruction, so we trap */
 466         for (i=hpage_offset; i < hpage_offset + (HW_PAGE_SIZE / 4); i++)
 467                 if ((be32_to_cpu(page[i]) & 0xff0007ff) == INS_DCBZ)
 468                         page[i] &= cpu_to_be32(0xfffffff7);
 469
 470         kunmap_atomic(page);
 471         put_page(hpage);
 472 }
 473
 474 static int kvmppc_visible_gfn(struct kvm_vcpu *vcpu, gfn_t gfn)
 475 {
 476         ulong mp_pa = vcpu->arch.magic_page_pa;
 477
 478         if (!(kvmppc_get_msr(vcpu) & MSR_SF))
 479                 mp_pa = (uint32_t)mp_pa;
 480
 481         if (unlikely(mp_pa) &&
 482             unlikely((mp_pa & KVM_PAM) >> PAGE_SHIFT == gfn)) {
 483                 return 1;
 484         }
 485
 486         return kvm_is_visible_gfn(vcpu->kvm, gfn);
 487 }
 488
 489 int kvmppc_handle_pagefault(struct kvm_run *run, struct kvm_vcpu *vcpu,
 490                             ulong eaddr, int vec)
 491 {
 492         bool data = (vec == BOOK3S_INTERRUPT_DATA_STORAGE);
 493         bool iswrite = false;
 494         int r = RESUME_GUEST;
 495         int relocated;
 496         int page_found = 0;
 497         struct kvmppc_pte pte;
 498         bool is_mmio = false;
 499         bool dr = (kvmppc_get_msr(vcpu) & MSR_DR) ? true : false;
 500         bool ir = (kvmppc_get_msr(vcpu) & MSR_IR) ? true : false;
 501         u64 vsid;
 502
 503         relocated = data ? dr : ir;
 504         if (data && (vcpu->arch.fault_dsisr & DSISR_ISSTORE))
 505                 iswrite = true;
 506
 507         /* Resolve real address if translation turned on */
 508         if (relocated) {
 509                 page_found = vcpu->arch.mmu.xlate(vcpu, eaddr, &pte, data, iswrite);
 510         } else {
 511                 pte.may_execute = true;
 512                 pte.may_read = true;
 513                 pte.may_write = true;
 514                 pte.raddr = eaddr & KVM_PAM;
 515                 pte.eaddr = eaddr;
 516                 pte.vpage = eaddr >> 12;
 517                 pte.page_size = MMU_PAGE_64K;
 518         }
 519
 520         switch (kvmppc_get_msr(vcpu) & (MSR_DR|MSR_IR)) {
 521         case 0:
 522                 pte.vpage |= ((u64)VSID_REAL << (SID_SHIFT - 12));
 523                 break;
 524         case MSR_DR:
 525         case MSR_IR:
 526                 vcpu->arch.mmu.esid_to_vsid(vcpu, eaddr >> SID_SHIFT, &vsid);
 527
 528                 if ((kvmppc_get_msr(vcpu) & (MSR_DR|MSR_IR)) == MSR_DR)
 529                         pte.vpage |= ((u64)VSID_REAL_DR << (SID_SHIFT - 12));
 530                 else
 531                         pte.vpage |= ((u64)VSID_REAL_IR << (SID_SHIFT - 12));
 532                 pte.vpage |= vsid;
 533
 534                 if (vsid == -1)
 535                         page_found = -EINVAL;
 536                 break;
 537         }
 538
 539         if (vcpu->arch.mmu.is_dcbz32(vcpu) &&
 540            (!(vcpu->arch.hflags & BOOK3S_HFLAG_DCBZ32))) {
 541                 /*
 542                  * If we do the dcbz hack, we have to NX on every execution,
 543                  * so we can patch the executing code. This renders our guest
 544                  * NX-less.
 545                  */
 546                 pte.may_execute = !data;
 547         }
 548
 549         if (page_found == -ENOENT) {
 550                 /* Page not found in guest PTE entries */
 551                 u64 ssrr1 = vcpu->arch.shadow_srr1;
 552                 u64 msr = kvmppc_get_msr(vcpu);
 553                 kvmppc_set_dar(vcpu, kvmppc_get_fault_dar(vcpu));
 554                 kvmppc_set_dsisr(vcpu, vcpu->arch.fault_dsisr);
 555                 kvmppc_set_msr_fast(vcpu, msr | (ssrr1 & 0xf8000000ULL));
 556                 kvmppc_book3s_queue_irqprio(vcpu, vec);
 557         } else if (page_found == -EPERM) {
 558                 /* Storage protection */
 559                 u32 dsisr = vcpu->arch.fault_dsisr;
 560                 u64 ssrr1 = vcpu->arch.shadow_srr1;
 561                 u64 msr = kvmppc_get_msr(vcpu);
 562                 kvmppc_set_dar(vcpu, kvmppc_get_fault_dar(vcpu));
 563                 dsisr = (dsisr & ~DSISR_NOHPTE) | DSISR_PROTFAULT;
 564                 kvmppc_set_dsisr(vcpu, dsisr);
 565                 kvmppc_set_msr_fast(vcpu, msr | (ssrr1 & 0xf8000000ULL));
 566                 kvmppc_book3s_queue_irqprio(vcpu, vec);
 567         } else if (page_found == -EINVAL) {
 568                 /* Page not found in guest SLB */
 569                 kvmppc_set_dar(vcpu, kvmppc_get_fault_dar(vcpu));
 570                 kvmppc_book3s_queue_irqprio(vcpu, vec + 0x80);
 571         } else if (!is_mmio &&
 572                    kvmppc_visible_gfn(vcpu, pte.raddr >> PAGE_SHIFT)) {
 573                 if (data && !(vcpu->arch.fault_dsisr & DSISR_NOHPTE)) {
 574                         /*
 575                          * There is already a host HPTE there, presumably
 576                          * a read-only one for a page the guest thinks
 577                          * is writable, so get rid of it first.
 578                          */
 579                         kvmppc_mmu_unmap_page(vcpu, &pte);
 580                 }
 581                 /* The guest's PTE is not mapped yet. Map on the host */
 582                 kvmppc_mmu_map_page(vcpu, &pte, iswrite);
 583                 if (data)
 584                         vcpu->stat.sp_storage++;
 585                 else if (vcpu->arch.mmu.is_dcbz32(vcpu) &&
 586                          (!(vcpu->arch.hflags & BOOK3S_HFLAG_DCBZ32)))
 587                         kvmppc_patch_dcbz(vcpu, &pte);
 588         } else {
 589                 /* MMIO */
 590                 vcpu->stat.mmio_exits++;
 591                 vcpu->arch.paddr_accessed = pte.raddr;
 592                 vcpu->arch.vaddr_accessed = pte.eaddr;
 593                 r = kvmppc_emulate_mmio(run, vcpu);
 594                 if ( r == RESUME_HOST_NV )
 595                         r = RESUME_HOST;
 596         }
 597
 598         return r;
 599 }
 600
 601 static inline int get_fpr_index(int i)
 602 {
 603         return i * TS_FPRWIDTH;
 604 }
 605
 606 /* Give up external provider (FPU, Altivec, VSX) */
 607 void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr)
 608 {
 609         struct thread_struct *t = &current->thread;
 610
 611         /*
 612          * VSX instructions can access FP and vector registers, so if
 613          * we are giving up VSX, make sure we give up FP and VMX as well.
 614          */
 615         if (msr & MSR_VSX)
 616                 msr |= MSR_FP | MSR_VEC;
 617
 618         msr &= vcpu->arch.guest_owned_ext;
 619         if (!msr)
 620                 return;
 621
 622 #ifdef DEBUG_EXT
 623         printk(KERN_INFO "Giving up ext 0x%lx\n", msr);
 624 #endif
 625
 626         if (msr & MSR_FP) {
 627                 /*
 628                  * Note that on CPUs with VSX, giveup_fpu stores
 629                  * both the traditional FP registers and the added VSX
 630                  * registers into thread.fp_state.fpr[].
 631                  */
 632                 if (t->regs->msr & MSR_FP)
 633                         giveup_fpu(current);
 634                 t->fp_save_area = NULL;
 635         }
 636
 637 #ifdef CONFIG_ALTIVEC
 638         if (msr & MSR_VEC) {
 639                 if (current->thread.regs->msr & MSR_VEC)
 640                         giveup_altivec(current);
 641                 t->vr_save_area = NULL;
 642         }
 643 #endif
 644
 645         vcpu->arch.guest_owned_ext &= ~(msr | MSR_VSX);
 646         kvmppc_recalc_shadow_msr(vcpu);
 647 }
 648
 649 /* Give up facility (TAR / EBB / DSCR) */
 650 static void kvmppc_giveup_fac(struct kvm_vcpu *vcpu, ulong fac)
 651 {
 652 #ifdef CONFIG_PPC_BOOK3S_64
 653         if (!(vcpu->arch.shadow_fscr & (1ULL << fac))) {
 654                 /* Facility not available to the guest, ignore giveup request*/
 655                 return;
 656         }
 657
 658         switch (fac) {
 659         case FSCR_TAR_LG:
 660                 vcpu->arch.tar = mfspr(SPRN_TAR);
 661                 mtspr(SPRN_TAR, current->thread.tar);
 662                 vcpu->arch.shadow_fscr &= ~FSCR_TAR;
 663                 break;
 664         }
 665 #endif
 666 }
 667
 668 static int kvmppc_read_inst(struct kvm_vcpu *vcpu)
 669 {
 670         ulong srr0 = kvmppc_get_pc(vcpu);
 671         u32 last_inst = kvmppc_get_last_inst(vcpu);
 672         int ret;
 673
 674         ret = kvmppc_ld(vcpu, &srr0, sizeof(u32), &last_inst, false);
 675         if (ret == -ENOENT) {
 676                 ulong msr = kvmppc_get_msr(vcpu);
 677
 678                 msr = kvmppc_set_field(msr, 33, 33, 1);
 679                 msr = kvmppc_set_field(msr, 34, 36, 0);
 680                 msr = kvmppc_set_field(msr, 42, 47, 0);
 681                 kvmppc_set_msr_fast(vcpu, msr);
 682                 kvmppc_book3s_queue_irqprio(vcpu, BOOK3S_INTERRUPT_INST_STORAGE);
 683                 return EMULATE_AGAIN;
 684         }
 685
 686         return EMULATE_DONE;
 687 }
 688
 689 static int kvmppc_check_ext(struct kvm_vcpu *vcpu, unsigned int exit_nr)
 690 {
 691
 692         /* Need to do paired single emulation? */
 693         if (!(vcpu->arch.hflags & BOOK3S_HFLAG_PAIRED_SINGLE))
 694                 return EMULATE_DONE;
 695
 696         /* Read out the instruction */
 697         if (kvmppc_read_inst(vcpu) == EMULATE_DONE)
 698                 /* Need to emulate */
 699                 return EMULATE_FAIL;
 700
 701         return EMULATE_AGAIN;
 702 }
 703
 704 /* Handle external providers (FPU, Altivec, VSX) */
 705 static int kvmppc_handle_ext(struct kvm_vcpu *vcpu, unsigned int exit_nr,
 706                              ulong msr)
 707 {
 708         struct thread_struct *t = &current->thread;
 709
 710         /* When we have paired singles, we emulate in software */
 711         if (vcpu->arch.hflags & BOOK3S_HFLAG_PAIRED_SINGLE)
 712                 return RESUME_GUEST;
 713
 714         if (!(kvmppc_get_msr(vcpu) & msr)) {
 715                 kvmppc_book3s_queue_irqprio(vcpu, exit_nr);
 716                 return RESUME_GUEST;
 717         }
 718
 719         if (msr == MSR_VSX) {
 720                 /* No VSX?  Give an illegal instruction interrupt */
 721 #ifdef CONFIG_VSX
 722                 if (!cpu_has_feature(CPU_FTR_VSX))
 723 #endif
 724                 {
 725                         kvmppc_core_queue_program(vcpu, SRR1_PROGILL);
 726                         return RESUME_GUEST;
 727                 }
 728
 729                 /*
 730                  * We have to load up all the FP and VMX registers before
 731                  * we can let the guest use VSX instructions.
 732                  */
 733                 msr = MSR_FP | MSR_VEC | MSR_VSX;
 734         }
 735
 736         /* See if we already own all the ext(s) needed */
 737         msr &= ~vcpu->arch.guest_owned_ext;
 738         if (!msr)
 739                 return RESUME_GUEST;
 740
 741 #ifdef DEBUG_EXT
 742         printk(KERN_INFO "Loading up ext 0x%lx\n", msr);
 743 #endif
 744
 745         if (msr & MSR_FP) {
 746                 preempt_disable();
 747                 enable_kernel_fp();
 748                 load_fp_state(&vcpu->arch.fp);
 749                 t->fp_save_area = &vcpu->arch.fp;
 750                 preempt_enable();
 751         }
 752
 753         if (msr & MSR_VEC) {
 754 #ifdef CONFIG_ALTIVEC
 755                 preempt_disable();
 756                 enable_kernel_altivec();
 757                 load_vr_state(&vcpu->arch.vr);
 758                 t->vr_save_area = &vcpu->arch.vr;
 759                 preempt_enable();
 760 #endif
 761         }
 762
 763         t->regs->msr |= msr;
 764         vcpu->arch.guest_owned_ext |= msr;
 765         kvmppc_recalc_shadow_msr(vcpu);
 766
 767         return RESUME_GUEST;
 768 }
 769
 770 /*
 771  * Kernel code using FP or VMX could have flushed guest state to
 772  * the thread_struct; if so, get it back now.
 773  */
 774 static void kvmppc_handle_lost_ext(struct kvm_vcpu *vcpu)
 775 {
 776         unsigned long lost_ext;
 777
 778         lost_ext = vcpu->arch.guest_owned_ext & ~current->thread.regs->msr;
 779         if (!lost_ext)
 780                 return;
 781
 782         if (lost_ext & MSR_FP) {
 783                 preempt_disable();
 784                 enable_kernel_fp();
 785                 load_fp_state(&vcpu->arch.fp);
 786                 preempt_enable();
 787         }
 788 #ifdef CONFIG_ALTIVEC
 789         if (lost_ext & MSR_VEC) {
 790                 preempt_disable();
 791                 enable_kernel_altivec();
 792                 load_vr_state(&vcpu->arch.vr);
 793                 preempt_enable();
 794         }
 795 #endif
 796         current->thread.regs->msr |= lost_ext;
 797 }
 798
 799 #ifdef CONFIG_PPC_BOOK3S_64
 800
 801 static void kvmppc_trigger_fac_interrupt(struct kvm_vcpu *vcpu, ulong fac)
 802 {
 803         /* Inject the Interrupt Cause field and trigger a guest interrupt */
 804         vcpu->arch.fscr &= ~(0xffULL << 56);
 805         vcpu->arch.fscr |= (fac << 56);
 806         kvmppc_book3s_queue_irqprio(vcpu, BOOK3S_INTERRUPT_FAC_UNAVAIL);
 807 }
 808
 809 static void kvmppc_emulate_fac(struct kvm_vcpu *vcpu, ulong fac)
 810 {
 811         enum emulation_result er = EMULATE_FAIL;
 812
 813         if (!(kvmppc_get_msr(vcpu) & MSR_PR))
 814                 er = kvmppc_emulate_instruction(vcpu->run, vcpu);
 815
 816         if ((er != EMULATE_DONE) && (er != EMULATE_AGAIN)) {
 817                 /* Couldn't emulate, trigger interrupt in guest */
 818                 kvmppc_trigger_fac_interrupt(vcpu, fac);
 819         }
 820 }
 821
 822 /* Enable facilities (TAR, EBB, DSCR) for the guest */
 823 static int kvmppc_handle_fac(struct kvm_vcpu *vcpu, ulong fac)
 824 {
 825         bool guest_fac_enabled;
 826         BUG_ON(!cpu_has_feature(CPU_FTR_ARCH_207S));
 827
 828         /*
 829          * Not every facility is enabled by FSCR bits, check whether the
 830          * guest has this facility enabled at all.
 831          */
 832         switch (fac) {
 833         case FSCR_TAR_LG:
 834         case FSCR_EBB_LG:
 835                 guest_fac_enabled = (vcpu->arch.fscr & (1ULL << fac));
 836                 break;
 837         case FSCR_TM_LG:
 838                 guest_fac_enabled = kvmppc_get_msr(vcpu) & MSR_TM;
 839                 break;
 840         default:
 841                 guest_fac_enabled = false;
 842                 break;
 843         }
 844
 845         if (!guest_fac_enabled) {
 846                 /* Facility not enabled by the guest */
 847                 kvmppc_trigger_fac_interrupt(vcpu, fac);
 848                 return RESUME_GUEST;
 849         }
 850
 851         switch (fac) {
 852         case FSCR_TAR_LG:
 853                 /* TAR switching isn't lazy in Linux yet */
 854                 current->thread.tar = mfspr(SPRN_TAR);
 855                 mtspr(SPRN_TAR, vcpu->arch.tar);
 856                 vcpu->arch.shadow_fscr |= FSCR_TAR;
 857                 break;
 858         default:
 859                 kvmppc_emulate_fac(vcpu, fac);
 860                 break;
 861         }
 862
 863         return RESUME_GUEST;
 864 }
 865 #endif
 866
 867 int kvmppc_handle_exit_pr(struct kvm_run *run, struct kvm_vcpu *vcpu,
 868                           unsigned int exit_nr)
 869 {
 870         int r = RESUME_HOST;
 871         int s;
 872
 873         vcpu->stat.sum_exits++;
 874
 875         run->exit_reason = KVM_EXIT_UNKNOWN;
 876         run->ready_for_interrupt_injection = 1;
 877
 878         /* We get here with MSR.EE=1 */
 879
 880         trace_kvm_exit(exit_nr, vcpu);
 881         kvm_guest_exit();
 882
 883         switch (exit_nr) {
 884         case BOOK3S_INTERRUPT_INST_STORAGE:
 885         {
 886                 ulong shadow_srr1 = vcpu->arch.shadow_srr1;
 887                 vcpu->stat.pf_instruc++;
 888
 889 #ifdef CONFIG_PPC_BOOK3S_32
 890                 /* We set segments as unused segments when invalidating them. So
 891                  * treat the respective fault as segment fault. */
 892                 {
 893                         struct kvmppc_book3s_shadow_vcpu *svcpu;
 894                         u32 sr;
 895
 896                         svcpu = svcpu_get(vcpu);
 897                         sr = svcpu->sr[kvmppc_get_pc(vcpu) >> SID_SHIFT];
 898                         svcpu_put(svcpu);
 899                         if (sr == SR_INVALID) {
 900                                 kvmppc_mmu_map_segment(vcpu, kvmppc_get_pc(vcpu));
 901                                 r = RESUME_GUEST;
 902                                 break;
 903                         }
 904                 }
 905 #endif
 906
 907                 /* only care about PTEG not found errors, but leave NX alone */
 908                 if (shadow_srr1 & 0x40000000) {
 909                         int idx = srcu_read_lock(&vcpu->kvm->srcu);
 910                         r = kvmppc_handle_pagefault(run, vcpu, kvmppc_get_pc(vcpu), exit_nr);
 911                         srcu_read_unlock(&vcpu->kvm->srcu, idx);
 912                         vcpu->stat.sp_instruc++;
 913                 } else if (vcpu->arch.mmu.is_dcbz32(vcpu) &&
 914                           (!(vcpu->arch.hflags & BOOK3S_HFLAG_DCBZ32))) {
 915                         /*
 916                          * XXX If we do the dcbz hack we use the NX bit to flush&patch the page,
 917                          *     so we can't use the NX bit inside the guest. Let's cross our fingers,
 918                          *     that no guest that needs the dcbz hack does NX.
 919                          */
 920                         kvmppc_mmu_pte_flush(vcpu, kvmppc_get_pc(vcpu), ~0xFFFUL);
 921                         r = RESUME_GUEST;
 922                 } else {
 923                         u64 msr = kvmppc_get_msr(vcpu);
 924                         msr |= shadow_srr1 & 0x58000000;
 925                         kvmppc_set_msr_fast(vcpu, msr);
 926                         kvmppc_book3s_queue_irqprio(vcpu, exit_nr);
 927                         r = RESUME_GUEST;
 928                 }
 929                 break;
 930         }
 931         case BOOK3S_INTERRUPT_DATA_STORAGE:
 932         {
 933                 ulong dar = kvmppc_get_fault_dar(vcpu);
 934                 u32 fault_dsisr = vcpu->arch.fault_dsisr;
 935                 vcpu->stat.pf_storage++;
 936
 937 #ifdef CONFIG_PPC_BOOK3S_32
 938                 /* We set segments as unused segments when invalidating them. So
 939                  * treat the respective fault as segment fault. */
 940                 {
 941                         struct kvmppc_book3s_shadow_vcpu *svcpu;
 942                         u32 sr;
 943
 944                         svcpu = svcpu_get(vcpu);
 945                         sr = svcpu->sr[dar >> SID_SHIFT];
 946                         svcpu_put(svcpu);
 947                         if (sr == SR_INVALID) {
 948                                 kvmppc_mmu_map_segment(vcpu, dar);
 949                                 r = RESUME_GUEST;
 950                                 break;
 951                         }
 952                 }
 953 #endif
 954
 955                 /*
 956                  * We need to handle missing shadow PTEs, and
 957                  * protection faults due to us mapping a page read-only
 958                  * when the guest thinks it is writable.
 959                  */
 960                 if (fault_dsisr & (DSISR_NOHPTE | DSISR_PROTFAULT)) {
 961                         int idx = srcu_read_lock(&vcpu->kvm->srcu);
 962                         r = kvmppc_handle_pagefault(run, vcpu, dar, exit_nr);
 963                         srcu_read_unlock(&vcpu->kvm->srcu, idx);
 964                 } else {
 965                         kvmppc_set_dar(vcpu, dar);
 966                         kvmppc_set_dsisr(vcpu, fault_dsisr);
 967                         kvmppc_book3s_queue_irqprio(vcpu, exit_nr);
 968                         r = RESUME_GUEST;
 969                 }
 970                 break;
 971         }
 972         case BOOK3S_INTERRUPT_DATA_SEGMENT:
 973                 if (kvmppc_mmu_map_segment(vcpu, kvmppc_get_fault_dar(vcpu)) < 0) {
 974                         kvmppc_set_dar(vcpu, kvmppc_get_fault_dar(vcpu));
 975                         kvmppc_book3s_queue_irqprio(vcpu,
 976                                 BOOK3S_INTERRUPT_DATA_SEGMENT);
 977                 }
 978                 r = RESUME_GUEST;
 979                 break;
 980         case BOOK3S_INTERRUPT_INST_SEGMENT:
 981                 if (kvmppc_mmu_map_segment(vcpu, kvmppc_get_pc(vcpu)) < 0) {
 982                         kvmppc_book3s_queue_irqprio(vcpu,
 983                                 BOOK3S_INTERRUPT_INST_SEGMENT);
 984                 }
 985                 r = RESUME_GUEST;
 986                 break;
 987         /* We're good on these - the host merely wanted to get our attention */
 988         case BOOK3S_INTERRUPT_DECREMENTER:
 989         case BOOK3S_INTERRUPT_HV_DECREMENTER:
 990         case BOOK3S_INTERRUPT_DOORBELL:
 991         case BOOK3S_INTERRUPT_H_DOORBELL:
 992                 vcpu->stat.dec_exits++;
 993                 r = RESUME_GUEST;
 994                 break;
 995         case BOOK3S_INTERRUPT_EXTERNAL:
 996         case BOOK3S_INTERRUPT_EXTERNAL_LEVEL:
 997         case BOOK3S_INTERRUPT_EXTERNAL_HV:
 998                 vcpu->stat.ext_intr_exits++;
 999                 r = RESUME_GUEST;
1000                 break;
1001         case BOOK3S_INTERRUPT_PERFMON:
1002                 r = RESUME_GUEST;
1003                 break;
1004         case BOOK3S_INTERRUPT_PROGRAM:
1005         case BOOK3S_INTERRUPT_H_EMUL_ASSIST:
1006         {
1007                 enum emulation_result er;
1008                 ulong flags;
1009
1010 program_interrupt:
1011                 flags = vcpu->arch.shadow_srr1 & 0x1f0000ull;
1012
1013                 if (kvmppc_get_msr(vcpu) & MSR_PR) {
1014 #ifdef EXIT_DEBUG
1015                         printk(KERN_INFO "Userspace triggered 0x700 exception at 0x%lx (0x%x)\n", kvmppc_get_pc(vcpu), kvmppc_get_last_inst(vcpu));
1016 #endif
1017                         if ((kvmppc_get_last_inst(vcpu) & 0xff0007ff) !=
1018                             (INS_DCBZ & 0xfffffff7)) {
1019                                 kvmppc_core_queue_program(vcpu, flags);
1020                                 r = RESUME_GUEST;
1021                                 break;
1022                         }
1023                 }
1024
1025                 vcpu->stat.emulated_inst_exits++;
1026                 er = kvmppc_emulate_instruction(run, vcpu);
1027                 switch (er) {
1028                 case EMULATE_DONE:
1029                         r = RESUME_GUEST_NV;
1030                         break;
1031                 case EMULATE_AGAIN:
1032                         r = RESUME_GUEST;
1033                         break;
1034                 case EMULATE_FAIL:
1035                         printk(KERN_CRIT "%s: emulation at %lx failed (%08x)\n",
1036                                __func__, kvmppc_get_pc(vcpu), kvmppc_get_last_inst(vcpu));
1037                         kvmppc_core_queue_program(vcpu, flags);
1038                         r = RESUME_GUEST;
1039                         break;
1040                 case EMULATE_DO_MMIO:
1041                         run->exit_reason = KVM_EXIT_MMIO;
1042                         r = RESUME_HOST_NV;
1043                         break;
1044                 case EMULATE_EXIT_USER:
1045                         r = RESUME_HOST_NV;
1046                         break;
1047                 default:
1048                         BUG();
1049                 }
1050                 break;
1051         }
1052         case BOOK3S_INTERRUPT_SYSCALL:
1053                 if (vcpu->arch.papr_enabled &&
1054                     (kvmppc_get_last_sc(vcpu) == 0x44000022) &&
1055                     !(kvmppc_get_msr(vcpu) & MSR_PR)) {
1056                         /* SC 1 papr hypercalls */
1057                         ulong cmd = kvmppc_get_gpr(vcpu, 3);
1058                         int i;
1059
1060 #ifdef CONFIG_PPC_BOOK3S_64
1061                         if (kvmppc_h_pr(vcpu, cmd) == EMULATE_DONE) {
1062                                 r = RESUME_GUEST;
1063                                 break;
1064                         }
1065 #endif
1066
1067                         run->papr_hcall.nr = cmd;
1068                         for (i = 0; i < 9; ++i) {
1069                                 ulong gpr = kvmppc_get_gpr(vcpu, 4 + i);
1070                                 run->papr_hcall.args[i] = gpr;
1071                         }
1072                         run->exit_reason = KVM_EXIT_PAPR_HCALL;
1073                         vcpu->arch.hcall_needed = 1;
1074                         r = RESUME_HOST;
1075                 } else if (vcpu->arch.osi_enabled &&
1076                     (((u32)kvmppc_get_gpr(vcpu, 3)) == OSI_SC_MAGIC_R3) &&
1077                     (((u32)kvmppc_get_gpr(vcpu, 4)) == OSI_SC_MAGIC_R4)) {
1078                         /* MOL hypercalls */
1079                         u64 *gprs = run->osi.gprs;
1080                         int i;
1081
1082                         run->exit_reason = KVM_EXIT_OSI;
1083                         for (i = 0; i < 32; i++)
1084                                 gprs[i] = kvmppc_get_gpr(vcpu, i);
1085                         vcpu->arch.osi_needed = 1;
1086                         r = RESUME_HOST_NV;
1087                 } else if (!(kvmppc_get_msr(vcpu) & MSR_PR) &&
1088                     (((u32)kvmppc_get_gpr(vcpu, 0)) == KVM_SC_MAGIC_R0)) {
1089                         /* KVM PV hypercalls */
1090                         kvmppc_set_gpr(vcpu, 3, kvmppc_kvm_pv(vcpu));
1091                         r = RESUME_GUEST;
1092                 } else {
1093                         /* Guest syscalls */
1094                         vcpu->stat.syscall_exits++;
1095                         kvmppc_book3s_queue_irqprio(vcpu, exit_nr);
1096                         r = RESUME_GUEST;
1097                 }
1098                 break;
1099         case BOOK3S_INTERRUPT_FP_UNAVAIL:
1100         case BOOK3S_INTERRUPT_ALTIVEC:
1101         case BOOK3S_INTERRUPT_VSX:
1102         {
1103                 int ext_msr = 0;
1104
1105                 switch (exit_nr) {
1106                 case BOOK3S_INTERRUPT_FP_UNAVAIL: ext_msr = MSR_FP;  break;
1107                 case BOOK3S_INTERRUPT_ALTIVEC:    ext_msr = MSR_VEC; break;
1108                 case BOOK3S_INTERRUPT_VSX:        ext_msr = MSR_VSX; break;
1109                 }
1110
1111                 switch (kvmppc_check_ext(vcpu, exit_nr)) {
1112                 case EMULATE_DONE:
1113                         /* everything ok - let's enable the ext */
1114                         r = kvmppc_handle_ext(vcpu, exit_nr, ext_msr);
1115                         break;
1116                 case EMULATE_FAIL:
1117                         /* we need to emulate this instruction */
1118                         goto program_interrupt;
1119                         break;
1120                 default:
1121                         /* nothing to worry about - go again */
1122                         break;
1123                 }
1124                 break;
1125         }
1126         case BOOK3S_INTERRUPT_ALIGNMENT:
1127                 if (kvmppc_read_inst(vcpu) == EMULATE_DONE) {
1128                         u32 last_inst = kvmppc_get_last_inst(vcpu);
1129                         u32 dsisr;
1130                         u64 dar;
1131
1132                         dsisr = kvmppc_alignment_dsisr(vcpu, last_inst);
1133                         dar = kvmppc_alignment_dar(vcpu, last_inst);
1134
1135                         kvmppc_set_dsisr(vcpu, dsisr);
1136                         kvmppc_set_dar(vcpu, dar);
1137
1138                         kvmppc_book3s_queue_irqprio(vcpu, exit_nr);
1139                 }
1140                 r = RESUME_GUEST;
1141                 break;
1142 #ifdef CONFIG_PPC_BOOK3S_64
1143         case BOOK3S_INTERRUPT_FAC_UNAVAIL:
1144                 kvmppc_handle_fac(vcpu, vcpu->arch.shadow_fscr >> 56);
1145                 r = RESUME_GUEST;
1146                 break;
1147 #endif
1148         case BOOK3S_INTERRUPT_MACHINE_CHECK:
1149         case BOOK3S_INTERRUPT_TRACE:
1150                 kvmppc_book3s_queue_irqprio(vcpu, exit_nr);
1151                 r = RESUME_GUEST;
1152                 break;
1153         default:
1154         {
1155                 ulong shadow_srr1 = vcpu->arch.shadow_srr1;
1156                 /* Ugh - bork here! What did we get? */
1157                 printk(KERN_EMERG "exit_nr=0x%x | pc=0x%lx | msr=0x%lx\n",
1158                         exit_nr, kvmppc_get_pc(vcpu), shadow_srr1);
1159                 r = RESUME_HOST;
1160                 BUG();
1161                 break;
1162         }
1163         }
1164
1165         if (!(r & RESUME_HOST)) {
1166                 /* To avoid clobbering exit_reason, only check for signals if
1167                  * we aren't already exiting to userspace for some other
1168                  * reason. */
1169
1170                 /*
1171                  * Interrupts could be timers for the guest which we have to
1172                  * inject again, so let's postpone them until we're in the guest
1173                  * and if we really did time things so badly, then we just exit
1174                  * again due to a host external interrupt.
1175                  */
1176                 s = kvmppc_prepare_to_enter(vcpu);
1177                 if (s <= 0)
1178                         r = s;
1179                 else {
1180                         /* interrupts now hard-disabled */
1181                         kvmppc_fix_ee_before_entry();
1182                 }
1183
1184                 kvmppc_handle_lost_ext(vcpu);
1185         }
1186
1187         trace_kvm_book3s_reenter(r, vcpu);
1188
1189         return r;
1190 }
1191
1192 static int kvm_arch_vcpu_ioctl_get_sregs_pr(struct kvm_vcpu *vcpu,
1193                                             struct kvm_sregs *sregs)
1194 {
1195         struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(vcpu);
1196         int i;
1197
1198         sregs->pvr = vcpu->arch.pvr;
1199
1200         sregs->u.s.sdr1 = to_book3s(vcpu)->sdr1;
1201         if (vcpu->arch.hflags & BOOK3S_HFLAG_SLB) {
1202                 for (i = 0; i < 64; i++) {
1203                         sregs->u.s.ppc64.slb[i].slbe = vcpu->arch.slb[i].orige | i;
1204                         sregs->u.s.ppc64.slb[i].slbv = vcpu->arch.slb[i].origv;
1205                 }
1206         } else {
1207                 for (i = 0; i < 16; i++)
1208                         sregs->u.s.ppc32.sr[i] = kvmppc_get_sr(vcpu, i);
1209
1210                 for (i = 0; i < 8; i++) {
1211                         sregs->u.s.ppc32.ibat[i] = vcpu3s->ibat[i].raw;
1212                         sregs->u.s.ppc32.dbat[i] = vcpu3s->dbat[i].raw;
1213                 }
1214         }
1215
1216         return 0;
1217 }
1218
1219 static int kvm_arch_vcpu_ioctl_set_sregs_pr(struct kvm_vcpu *vcpu,
1220                                             struct kvm_sregs *sregs)
1221 {
1222         struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(vcpu);
1223         int i;
1224
1225         kvmppc_set_pvr_pr(vcpu, sregs->pvr);
1226
1227         vcpu3s->sdr1 = sregs->u.s.sdr1;
1228         if (vcpu->arch.hflags & BOOK3S_HFLAG_SLB) {
1229                 for (i = 0; i < 64; i++) {
1230                         vcpu->arch.mmu.slbmte(vcpu, sregs->u.s.ppc64.slb[i].slbv,
1231                                                     sregs->u.s.ppc64.slb[i].slbe);
1232                 }
1233         } else {
1234                 for (i = 0; i < 16; i++) {
1235                         vcpu->arch.mmu.mtsrin(vcpu, i, sregs->u.s.ppc32.sr[i]);
1236                 }
1237                 for (i = 0; i < 8; i++) {
1238                         kvmppc_set_bat(vcpu, &(vcpu3s->ibat[i]), false,
1239                                        (u32)sregs->u.s.ppc32.ibat[i]);
1240                         kvmppc_set_bat(vcpu, &(vcpu3s->ibat[i]), true,
1241                                        (u32)(sregs->u.s.ppc32.ibat[i] >> 32));
1242                         kvmppc_set_bat(vcpu, &(vcpu3s->dbat[i]), false,
1243                                        (u32)sregs->u.s.ppc32.dbat[i]);
1244                         kvmppc_set_bat(vcpu, &(vcpu3s->dbat[i]), true,
1245                                        (u32)(sregs->u.s.ppc32.dbat[i] >> 32));
1246                 }
1247         }
1248
1249         /* Flush the MMU after messing with the segments */
1250         kvmppc_mmu_pte_flush(vcpu, 0, 0);
1251
1252         return 0;
1253 }
1254
1255 static int kvmppc_get_one_reg_pr(struct kvm_vcpu *vcpu, u64 id,
1256                                  union kvmppc_one_reg *val)
1257 {
1258         int r = 0;
1259
1260         switch (id) {
1261         case KVM_REG_PPC_HIOR:
1262                 *val = get_reg_val(id, to_book3s(vcpu)->hior);
1263                 break;
1264         case KVM_REG_PPC_LPCR:
1265                 /*
1266                  * We are only interested in the LPCR_ILE bit
1267                  */
1268                 if (vcpu->arch.intr_msr & MSR_LE)
1269                         *val = get_reg_val(id, LPCR_ILE);
1270                 else
1271                         *val = get_reg_val(id, 0);
1272                 break;
1273         default:
1274                 r = -EINVAL;
1275                 break;
1276         }
1277
1278         return r;
1279 }
1280
1281 static void kvmppc_set_lpcr_pr(struct kvm_vcpu *vcpu, u64 new_lpcr)
1282 {
1283         if (new_lpcr & LPCR_ILE)
1284                 vcpu->arch.intr_msr |= MSR_LE;
1285         else
1286                 vcpu->arch.intr_msr &= ~MSR_LE;
1287 }
1288
1289 static int kvmppc_set_one_reg_pr(struct kvm_vcpu *vcpu, u64 id,
1290                                  union kvmppc_one_reg *val)
1291 {
1292         int r = 0;
1293
1294         switch (id) {
1295         case KVM_REG_PPC_HIOR:
1296                 to_book3s(vcpu)->hior = set_reg_val(id, *val);
1297                 to_book3s(vcpu)->hior_explicit = true;
1298                 break;
1299         case KVM_REG_PPC_LPCR:
1300                 kvmppc_set_lpcr_pr(vcpu, set_reg_val(id, *val));
1301                 break;
1302         default:
1303                 r = -EINVAL;
1304                 break;
1305         }
1306
1307         return r;
1308 }
1309
1310 static struct kvm_vcpu *kvmppc_core_vcpu_create_pr(struct kvm *kvm,
1311                                                    unsigned int id)
1312 {
1313         struct kvmppc_vcpu_book3s *vcpu_book3s;
1314         struct kvm_vcpu *vcpu;
1315         int err = -ENOMEM;
1316         unsigned long p;
1317
1318         vcpu = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL);
1319         if (!vcpu)
1320                 goto out;
1321
1322         vcpu_book3s = vzalloc(sizeof(struct kvmppc_vcpu_book3s));
1323         if (!vcpu_book3s)
1324                 goto free_vcpu;
1325         vcpu->arch.book3s = vcpu_book3s;
1326
1327 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
1328         vcpu->arch.shadow_vcpu =
1329                 kzalloc(sizeof(*vcpu->arch.shadow_vcpu), GFP_KERNEL);
1330         if (!vcpu->arch.shadow_vcpu)
1331                 goto free_vcpu3s;
1332 #endif
1333
1334         err = kvm_vcpu_init(vcpu, kvm, id);
1335         if (err)
1336                 goto free_shadow_vcpu;
1337
1338         err = -ENOMEM;
1339         p = __get_free_page(GFP_KERNEL|__GFP_ZERO);
1340         if (!p)
1341                 goto uninit_vcpu;
1342         /* the real shared page fills the last 4k of our page */
1343         vcpu->arch.shared = (void *)(p + PAGE_SIZE - 4096);
1344 #ifdef CONFIG_PPC_BOOK3S_64
1345         /* Always start the shared struct in native endian mode */
1346 #ifdef __BIG_ENDIAN__
1347         vcpu->arch.shared_big_endian = true;
1348 #else
1349         vcpu->arch.shared_big_endian = false;
1350 #endif
1351
1352         /*
1353          * Default to the same as the host if we're on sufficiently
1354          * recent machine that we have 1TB segments;
1355          * otherwise default to PPC970FX.
1356          */
1357         vcpu->arch.pvr = 0x3C0301;
1358         if (mmu_has_feature(MMU_FTR_1T_SEGMENT))
1359                 vcpu->arch.pvr = mfspr(SPRN_PVR);
1360         vcpu->arch.intr_msr = MSR_SF;
1361 #else
1362         /* default to book3s_32 (750) */
1363         vcpu->arch.pvr = 0x84202;
1364 #endif
1365         kvmppc_set_pvr_pr(vcpu, vcpu->arch.pvr);
1366         vcpu->arch.slb_nr = 64;
1367
1368         vcpu->arch.shadow_msr = MSR_USER64 & ~MSR_LE;
1369
1370         err = kvmppc_mmu_init(vcpu);
1371         if (err < 0)
1372                 goto uninit_vcpu;
1373
1374         return vcpu;
1375
1376 uninit_vcpu:
1377         kvm_vcpu_uninit(vcpu);
1378 free_shadow_vcpu:
1379 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
1380         kfree(vcpu->arch.shadow_vcpu);
1381 free_vcpu3s:
1382 #endif
1383         vfree(vcpu_book3s);
1384 free_vcpu:
1385         kmem_cache_free(kvm_vcpu_cache, vcpu);
1386 out:
1387         return ERR_PTR(err);
1388 }
1389
1390 static void kvmppc_core_vcpu_free_pr(struct kvm_vcpu *vcpu)
1391 {
1392         struct kvmppc_vcpu_book3s *vcpu_book3s = to_book3s(vcpu);
1393
1394         free_page((unsigned long)vcpu->arch.shared & PAGE_MASK);
1395         kvm_vcpu_uninit(vcpu);
1396 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
1397         kfree(vcpu->arch.shadow_vcpu);
1398 #endif
1399         vfree(vcpu_book3s);
1400         kmem_cache_free(kvm_vcpu_cache, vcpu);
1401 }
1402
1403 static int kvmppc_vcpu_run_pr(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
1404 {
1405         int ret;
1406 #ifdef CONFIG_ALTIVEC
1407         unsigned long uninitialized_var(vrsave);
1408 #endif
1409
1410         /* Check if we can run the vcpu at all */
1411         if (!vcpu->arch.sane) {
1412                 kvm_run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
1413                 ret = -EINVAL;
1414                 goto out;
1415         }
1416
1417         /*
1418          * Interrupts could be timers for the guest which we have to inject
1419          * again, so let's postpone them until we're in the guest and if we
1420          * really did time things so badly, then we just exit again due to
1421          * a host external interrupt.
1422          */
1423         ret = kvmppc_prepare_to_enter(vcpu);
1424         if (ret <= 0)
1425                 goto out;
1426         /* interrupts now hard-disabled */
1427
1428         /* Save FPU state in thread_struct */
1429         if (current->thread.regs->msr & MSR_FP)
1430                 giveup_fpu(current);
1431
1432 #ifdef CONFIG_ALTIVEC
1433         /* Save Altivec state in thread_struct */
1434         if (current->thread.regs->msr & MSR_VEC)
1435                 giveup_altivec(current);
1436 #endif
1437
1438 #ifdef CONFIG_VSX
1439         /* Save VSX state in thread_struct */
1440         if (current->thread.regs->msr & MSR_VSX)
1441                 __giveup_vsx(current);
1442 #endif
1443
1444         /* Preload FPU if it's enabled */
1445         if (kvmppc_get_msr(vcpu) & MSR_FP)
1446                 kvmppc_handle_ext(vcpu, BOOK3S_INTERRUPT_FP_UNAVAIL, MSR_FP);
1447
1448         kvmppc_fix_ee_before_entry();
1449
1450         ret = __kvmppc_vcpu_run(kvm_run, vcpu);
1451
1452         /* No need for kvm_guest_exit. It's done in handle_exit.
1453            We also get here with interrupts enabled. */
1454
1455         /* Make sure we save the guest FPU/Altivec/VSX state */
1456         kvmppc_giveup_ext(vcpu, MSR_FP | MSR_VEC | MSR_VSX);
1457
1458         /* Make sure we save the guest TAR/EBB/DSCR state */
1459         kvmppc_giveup_fac(vcpu, FSCR_TAR_LG);
1460
1461 out:
1462         vcpu->mode = OUTSIDE_GUEST_MODE;
1463         return ret;
1464 }
1465
1466 /*
1467  * Get (and clear) the dirty memory log for a memory slot.
1468  */
1469 static int kvm_vm_ioctl_get_dirty_log_pr(struct kvm *kvm,
1470                                          struct kvm_dirty_log *log)
1471 {
1472         struct kvm_memory_slot *memslot;
1473         struct kvm_vcpu *vcpu;
1474         ulong ga, ga_end;
1475         int is_dirty = 0;
1476         int r;
1477         unsigned long n;
1478
1479         mutex_lock(&kvm->slots_lock);
1480
1481         r = kvm_get_dirty_log(kvm, log, &is_dirty);
1482         if (r)
1483                 goto out;
1484
1485         /* If nothing is dirty, don't bother messing with page tables. */
1486         if (is_dirty) {
1487                 memslot = id_to_memslot(kvm->memslots, log->slot);
1488
1489                 ga = memslot->base_gfn << PAGE_SHIFT;
1490                 ga_end = ga + (memslot->npages << PAGE_SHIFT);
1491
1492                 kvm_for_each_vcpu(n, vcpu, kvm)
1493                         kvmppc_mmu_pte_pflush(vcpu, ga, ga_end);
1494
1495                 n = kvm_dirty_bitmap_bytes(memslot);
1496                 memset(memslot->dirty_bitmap, 0, n);
1497         }
1498
1499         r = 0;
1500 out:
1501         mutex_unlock(&kvm->slots_lock);
1502         return r;
1503 }
1504
1505 static void kvmppc_core_flush_memslot_pr(struct kvm *kvm,
1506                                          struct kvm_memory_slot *memslot)
1507 {
1508         return;
1509 }
1510
1511 static int kvmppc_core_prepare_memory_region_pr(struct kvm *kvm,
1512                                         struct kvm_memory_slot *memslot,
1513                                         struct kvm_userspace_memory_region *mem)
1514 {
1515         return 0;
1516 }
1517
1518 static void kvmppc_core_commit_memory_region_pr(struct kvm *kvm,
1519                                 struct kvm_userspace_memory_region *mem,
1520                                 const struct kvm_memory_slot *old)
1521 {
1522         return;
1523 }
1524
1525 static void kvmppc_core_free_memslot_pr(struct kvm_memory_slot *free,
1526                                         struct kvm_memory_slot *dont)
1527 {
1528         return;
1529 }
1530
1531 static int kvmppc_core_create_memslot_pr(struct kvm_memory_slot *slot,
1532                                          unsigned long npages)
1533 {
1534         return 0;
1535 }
1536
1537
1538 #ifdef CONFIG_PPC64
1539 static int kvm_vm_ioctl_get_smmu_info_pr(struct kvm *kvm,
1540                                          struct kvm_ppc_smmu_info *info)
1541 {
1542         long int i;
1543         struct kvm_vcpu *vcpu;
1544
1545         info->flags = 0;
1546
1547         /* SLB is always 64 entries */
1548         info->slb_size = 64;
1549
1550         /* Standard 4k base page size segment */
1551         info->sps[0].page_shift = 12;
1552         info->sps[0].slb_enc = 0;
1553         info->sps[0].enc[0].page_shift = 12;
1554         info->sps[0].enc[0].pte_enc = 0;
1555
1556         /*
1557          * 64k large page size.
1558          * We only want to put this in if the CPUs we're emulating
1559          * support it, but unfortunately we don't have a vcpu easily
1560          * to hand here to test.  Just pick the first vcpu, and if
1561          * that doesn't exist yet, report the minimum capability,
1562          * i.e., no 64k pages.
1563          * 1T segment support goes along with 64k pages.
1564          */
1565         i = 1;
1566         vcpu = kvm_get_vcpu(kvm, 0);
1567         if (vcpu && (vcpu->arch.hflags & BOOK3S_HFLAG_MULTI_PGSIZE)) {
1568                 info->flags = KVM_PPC_1T_SEGMENTS;
1569                 info->sps[i].page_shift = 16;
1570                 info->sps[i].slb_enc = SLB_VSID_L | SLB_VSID_LP_01;
1571                 info->sps[i].enc[0].page_shift = 16;
1572                 info->sps[i].enc[0].pte_enc = 1;
1573                 ++i;
1574         }
1575
1576         /* Standard 16M large page size segment */
1577         info->sps[i].page_shift = 24;
1578         info->sps[i].slb_enc = SLB_VSID_L;
1579         info->sps[i].enc[0].page_shift = 24;
1580         info->sps[i].enc[0].pte_enc = 0;
1581
1582         return 0;
1583 }
1584 #else
1585 static int kvm_vm_ioctl_get_smmu_info_pr(struct kvm *kvm,
1586                                          struct kvm_ppc_smmu_info *info)
1587 {
1588         /* We should not get called */
1589         BUG();
1590 }
1591 #endif /* CONFIG_PPC64 */
1592
1593 static unsigned int kvm_global_user_count = 0;
1594 static DEFINE_SPINLOCK(kvm_global_user_count_lock);
1595
1596 static int kvmppc_core_init_vm_pr(struct kvm *kvm)
1597 {
1598         mutex_init(&kvm->arch.hpt_mutex);
1599
1600         if (firmware_has_feature(FW_FEATURE_SET_MODE)) {
1601                 spin_lock(&kvm_global_user_count_lock);
1602                 if (++kvm_global_user_count == 1)
1603                         pSeries_disable_reloc_on_exc();
1604                 spin_unlock(&kvm_global_user_count_lock);
1605         }
1606         return 0;
1607 }
1608
1609 static void kvmppc_core_destroy_vm_pr(struct kvm *kvm)
1610 {
1611 #ifdef CONFIG_PPC64
1612         WARN_ON(!list_empty(&kvm->arch.spapr_tce_tables));
1613 #endif
1614
1615         if (firmware_has_feature(FW_FEATURE_SET_MODE)) {
1616                 spin_lock(&kvm_global_user_count_lock);
1617                 BUG_ON(kvm_global_user_count == 0);
1618                 if (--kvm_global_user_count == 0)
1619                         pSeries_enable_reloc_on_exc();
1620                 spin_unlock(&kvm_global_user_count_lock);
1621         }
1622 }
1623
1624 static int kvmppc_core_check_processor_compat_pr(void)
1625 {
1626         /* we are always compatible */
1627         return 0;
1628 }
1629
1630 static long kvm_arch_vm_ioctl_pr(struct file *filp,
1631                                  unsigned int ioctl, unsigned long arg)
1632 {
1633         return -ENOTTY;
1634 }
1635
1636 static struct kvmppc_ops kvm_ops_pr = {
1637         .get_sregs = kvm_arch_vcpu_ioctl_get_sregs_pr,
1638         .set_sregs = kvm_arch_vcpu_ioctl_set_sregs_pr,
1639         .get_one_reg = kvmppc_get_one_reg_pr,
1640         .set_one_reg = kvmppc_set_one_reg_pr,
1641         .vcpu_load   = kvmppc_core_vcpu_load_pr,
1642         .vcpu_put    = kvmppc_core_vcpu_put_pr,
1643         .set_msr     = kvmppc_set_msr_pr,
1644         .vcpu_run    = kvmppc_vcpu_run_pr,
1645         .vcpu_create = kvmppc_core_vcpu_create_pr,
1646         .vcpu_free   = kvmppc_core_vcpu_free_pr,
1647         .check_requests = kvmppc_core_check_requests_pr,
1648         .get_dirty_log = kvm_vm_ioctl_get_dirty_log_pr,
1649         .flush_memslot = kvmppc_core_flush_memslot_pr,
1650         .prepare_memory_region = kvmppc_core_prepare_memory_region_pr,
1651         .commit_memory_region = kvmppc_core_commit_memory_region_pr,
1652         .unmap_hva = kvm_unmap_hva_pr,
1653         .unmap_hva_range = kvm_unmap_hva_range_pr,
1654         .age_hva  = kvm_age_hva_pr,
1655         .test_age_hva = kvm_test_age_hva_pr,
1656         .set_spte_hva = kvm_set_spte_hva_pr,
1657         .mmu_destroy  = kvmppc_mmu_destroy_pr,
1658         .free_memslot = kvmppc_core_free_memslot_pr,
1659         .create_memslot = kvmppc_core_create_memslot_pr,
1660         .init_vm = kvmppc_core_init_vm_pr,
1661         .destroy_vm = kvmppc_core_destroy_vm_pr,
1662         .get_smmu_info = kvm_vm_ioctl_get_smmu_info_pr,
1663         .emulate_op = kvmppc_core_emulate_op_pr,
1664         .emulate_mtspr = kvmppc_core_emulate_mtspr_pr,
1665         .emulate_mfspr = kvmppc_core_emulate_mfspr_pr,
1666         .fast_vcpu_kick = kvm_vcpu_kick,
1667         .arch_vm_ioctl  = kvm_arch_vm_ioctl_pr,
1668 };
1669
1670
1671 int kvmppc_book3s_init_pr(void)
1672 {
1673         int r;
1674
1675         r = kvmppc_core_check_processor_compat_pr();
1676         if (r < 0)
1677                 return r;
1678
1679         kvm_ops_pr.owner = THIS_MODULE;
1680         kvmppc_pr_ops = &kvm_ops_pr;
1681
1682         r = kvmppc_mmu_hpte_sysinit();
1683         return r;
1684 }
1685
1686 void kvmppc_book3s_exit_pr(void)
1687 {
1688         kvmppc_pr_ops = NULL;
1689         kvmppc_mmu_hpte_sysexit();
1690 }
1691
1692 /*
1693  * We only support separate modules for book3s 64
1694  */
1695 #ifdef CONFIG_PPC_BOOK3S_64
1696
1697 module_init(kvmppc_book3s_init_pr);
1698 module_exit(kvmppc_book3s_exit_pr);
1699
1700 MODULE_LICENSE("GPL");
1701 MODULE_ALIAS_MISCDEV(KVM_MINOR);
1702 MODULE_ALIAS("devname:kvm");
1703 #endif