arch/powerpc/include/asm/kvm_ppc.h

   1 /*
   2  * This program is free software; you can redistribute it and/or modify
   3  * it under the terms of the GNU General Public License, version 2, as
   4  * published by the Free Software Foundation.
   5  *
   6  * This program is distributed in the hope that it will be useful,
   7  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   8  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   9  * GNU General Public License for more details.
  10  *
  11  * You should have received a copy of the GNU General Public License
  12  * along with this program; if not, write to the Free Software
  13  * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  14  *
  15  * Copyright IBM Corp. 2008
  16  *
  17  * Authors: Hollis Blanchard <hollisb@us.ibm.com>
  18  */
  19
  20 #ifndef __POWERPC_KVM_PPC_H__
  21 #define __POWERPC_KVM_PPC_H__
  22
  23 /* This file exists just so we can dereference kvm_vcpu, avoiding nested header
  24  * dependencies. */
  25
  26 #include <linux/mutex.h>
  27 #include <linux/timer.h>
  28 #include <linux/types.h>
  29 #include <linux/kvm_types.h>
  30 #include <linux/kvm_host.h>
  31 #include <linux/bug.h>
  32 #ifdef CONFIG_PPC_BOOK3S
  33 #include <asm/kvm_book3s.h>
  34 #else
  35 #include <asm/kvm_booke.h>
  36 #endif
  37 #ifdef CONFIG_KVM_BOOK3S_64_HANDLER
  38 #include <asm/paca.h>
  39 #endif
  40
  41 enum emulation_result {
  42         EMULATE_DONE,         /* no further processing */
  43         EMULATE_DO_MMIO,      /* kvm_run filled with MMIO request */
  44         EMULATE_DO_DCR,       /* kvm_run filled with DCR request */
  45         EMULATE_FAIL,         /* can't emulate this instruction */
  46         EMULATE_AGAIN,        /* something went wrong. go again */
  47         EMULATE_EXIT_USER,    /* emulation requires exit to user-space */
  48 };
  49
  50 extern int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
  51 extern int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
  52 extern void kvmppc_handler_highmem(void);
  53
  54 extern void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu);
  55 extern int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
  56                               unsigned int rt, unsigned int bytes,
  57                               int is_default_endian);
  58 extern int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu,
  59                                unsigned int rt, unsigned int bytes,
  60                                int is_default_endian);
  61 extern int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
  62                                u64 val, unsigned int bytes,
  63                                int is_default_endian);
  64
  65 extern int kvmppc_emulate_instruction(struct kvm_run *run,
  66                                       struct kvm_vcpu *vcpu);
  67 extern int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu);
  68 extern void kvmppc_emulate_dec(struct kvm_vcpu *vcpu);
  69 extern u32 kvmppc_get_dec(struct kvm_vcpu *vcpu, u64 tb);
  70 extern void kvmppc_decrementer_func(unsigned long data);
  71 extern int kvmppc_sanity_check(struct kvm_vcpu *vcpu);
  72 extern int kvmppc_subarch_vcpu_init(struct kvm_vcpu *vcpu);
  73 extern void kvmppc_subarch_vcpu_uninit(struct kvm_vcpu *vcpu);
  74
  75 /* Core-specific hooks */
  76
  77 extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr,
  78                            unsigned int gtlb_idx);
  79 extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode);
  80 extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid);
  81 extern void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu);
  82 extern int kvmppc_mmu_init(struct kvm_vcpu *vcpu);
  83 extern int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
  84 extern int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
  85 extern gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index,
  86                               gva_t eaddr);
  87 extern void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu);
  88 extern void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu);
  89
  90 extern struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm,
  91                                                 unsigned int id);
  92 extern void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu);
  93 extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu);
  94 extern int kvmppc_core_check_processor_compat(void);
  95 extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
  96                                       struct kvm_translation *tr);
  97
  98 extern void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
  99 extern void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu);
 100
 101 extern int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu);
 102 extern int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu);
 103 extern void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags);
 104 extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu);
 105 extern void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu);
 106 extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,
 107                                        struct kvm_interrupt *irq);
 108 extern void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu);
 109 extern void kvmppc_core_flush_tlb(struct kvm_vcpu *vcpu);
 110 extern int kvmppc_core_check_requests(struct kvm_vcpu *vcpu);
 111
 112 extern int kvmppc_booke_init(void);
 113 extern void kvmppc_booke_exit(void);
 114
 115 extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu);
 116 extern int kvmppc_kvm_pv(struct kvm_vcpu *vcpu);
 117 extern void kvmppc_map_magic(struct kvm_vcpu *vcpu);
 118
 119 extern long kvmppc_alloc_hpt(struct kvm *kvm, u32 *htab_orderp);
 120 extern long kvmppc_alloc_reset_hpt(struct kvm *kvm, u32 *htab_orderp);
 121 extern void kvmppc_free_hpt(struct kvm *kvm);
 122 extern long kvmppc_prepare_vrma(struct kvm *kvm,
 123                                 struct kvm_userspace_memory_region *mem);
 124 extern void kvmppc_map_vrma(struct kvm_vcpu *vcpu,
 125                         struct kvm_memory_slot *memslot, unsigned long porder);
 126 extern int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu);
 127
 128 extern long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm,
 129                                 struct kvm_create_spapr_tce *args);
 130 extern long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
 131                              unsigned long ioba, unsigned long tce);
 132 extern struct kvm_rma_info *kvm_alloc_rma(void);
 133 extern void kvm_release_rma(struct kvm_rma_info *ri);
 134 extern struct page *kvm_alloc_hpt(unsigned long nr_pages);
 135 extern void kvm_release_hpt(struct page *page, unsigned long nr_pages);
 136 extern int kvmppc_core_init_vm(struct kvm *kvm);
 137 extern void kvmppc_core_destroy_vm(struct kvm *kvm);
 138 extern void kvmppc_core_free_memslot(struct kvm *kvm,
 139                                      struct kvm_memory_slot *free,
 140                                      struct kvm_memory_slot *dont);
 141 extern int kvmppc_core_create_memslot(struct kvm *kvm,
 142                                       struct kvm_memory_slot *slot,
 143                                       unsigned long npages);
 144 extern int kvmppc_core_prepare_memory_region(struct kvm *kvm,
 145                                 struct kvm_memory_slot *memslot,
 146                                 struct kvm_userspace_memory_region *mem);
 147 extern void kvmppc_core_commit_memory_region(struct kvm *kvm,
 148                                 struct kvm_userspace_memory_region *mem,
 149                                 const struct kvm_memory_slot *old);
 150 extern int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm,
 151                                       struct kvm_ppc_smmu_info *info);
 152 extern void kvmppc_core_flush_memslot(struct kvm *kvm,
 153                                       struct kvm_memory_slot *memslot);
 154
 155 extern int kvmppc_bookehv_init(void);
 156 extern void kvmppc_bookehv_exit(void);
 157
 158 extern int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu);
 159
 160 extern int kvm_vm_ioctl_get_htab_fd(struct kvm *kvm, struct kvm_get_htab_fd *);
 161
 162 int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq);
 163
 164 extern int kvm_vm_ioctl_rtas_define_token(struct kvm *kvm, void __user *argp);
 165 extern int kvmppc_rtas_hcall(struct kvm_vcpu *vcpu);
 166 extern void kvmppc_rtas_tokens_free(struct kvm *kvm);
 167 extern int kvmppc_xics_set_xive(struct kvm *kvm, u32 irq, u32 server,
 168                                 u32 priority);
 169 extern int kvmppc_xics_get_xive(struct kvm *kvm, u32 irq, u32 *server,
 170                                 u32 *priority);
 171 extern int kvmppc_xics_int_on(struct kvm *kvm, u32 irq);
 172 extern int kvmppc_xics_int_off(struct kvm *kvm, u32 irq);
 173
 174 union kvmppc_one_reg {
 175         u32     wval;
 176         u64     dval;
 177         vector128 vval;
 178         u64     vsxval[2];
 179         struct {
 180                 u64     addr;
 181                 u64     length;
 182         }       vpaval;
 183 };
 184
 185 struct kvmppc_ops {
 186         struct module *owner;
 187         int (*get_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
 188         int (*set_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
 189         int (*get_one_reg)(struct kvm_vcpu *vcpu, u64 id,
 190                            union kvmppc_one_reg *val);
 191         int (*set_one_reg)(struct kvm_vcpu *vcpu, u64 id,
 192                            union kvmppc_one_reg *val);
 193         void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
 194         void (*vcpu_put)(struct kvm_vcpu *vcpu);
 195         void (*set_msr)(struct kvm_vcpu *vcpu, u64 msr);
 196         int (*vcpu_run)(struct kvm_run *run, struct kvm_vcpu *vcpu);
 197         struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned int id);
 198         void (*vcpu_free)(struct kvm_vcpu *vcpu);
 199         int (*check_requests)(struct kvm_vcpu *vcpu);
 200         int (*get_dirty_log)(struct kvm *kvm, struct kvm_dirty_log *log);
 201         void (*flush_memslot)(struct kvm *kvm, struct kvm_memory_slot *memslot);
 202         int (*prepare_memory_region)(struct kvm *kvm,
 203                                      struct kvm_memory_slot *memslot,
 204                                      struct kvm_userspace_memory_region *mem);
 205         void (*commit_memory_region)(struct kvm *kvm,
 206                                      struct kvm_userspace_memory_region *mem,
 207                                      const struct kvm_memory_slot *old);
 208         int (*unmap_hva)(struct kvm *kvm, unsigned long hva);
 209         int (*unmap_hva_range)(struct kvm *kvm, unsigned long start,
 210                            unsigned long end);
 211         int (*age_hva)(struct kvm *kvm, unsigned long hva);
 212         int (*test_age_hva)(struct kvm *kvm, unsigned long hva);
 213         void (*set_spte_hva)(struct kvm *kvm, unsigned long hva, pte_t pte);
 214         void (*mmu_destroy)(struct kvm_vcpu *vcpu);
 215         void (*free_memslot)(struct kvm_memory_slot *free,
 216                              struct kvm_memory_slot *dont);
 217         int (*create_memslot)(struct kvm_memory_slot *slot,
 218                               unsigned long npages);
 219         int (*init_vm)(struct kvm *kvm);
 220         void (*destroy_vm)(struct kvm *kvm);
 221         int (*get_smmu_info)(struct kvm *kvm, struct kvm_ppc_smmu_info *info);
 222         int (*emulate_op)(struct kvm_run *run, struct kvm_vcpu *vcpu,
 223                           unsigned int inst, int *advance);
 224         int (*emulate_mtspr)(struct kvm_vcpu *vcpu, int sprn, ulong spr_val);
 225         int (*emulate_mfspr)(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val);
 226         void (*fast_vcpu_kick)(struct kvm_vcpu *vcpu);
 227         long (*arch_vm_ioctl)(struct file *filp, unsigned int ioctl,
 228                               unsigned long arg);
 229
 230 };
 231
 232 extern struct kvmppc_ops *kvmppc_hv_ops;
 233 extern struct kvmppc_ops *kvmppc_pr_ops;
 234
 235 static inline bool is_kvmppc_hv_enabled(struct kvm *kvm)
 236 {
 237         return kvm->arch.kvm_ops == kvmppc_hv_ops;
 238 }
 239
 240 /*
 241  * Cuts out inst bits with ordering according to spec.
 242  * That means the leftmost bit is zero. All given bits are included.
 243  */
 244 static inline u32 kvmppc_get_field(u64 inst, int msb, int lsb)
 245 {
 246         u32 r;
 247         u32 mask;
 248
 249         BUG_ON(msb > lsb);
 250
 251         mask = (1 << (lsb - msb + 1)) - 1;
 252         r = (inst >> (63 - lsb)) & mask;
 253
 254         return r;
 255 }
 256
 257 /*
 258  * Replaces inst bits with ordering according to spec.
 259  */
 260 static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value)
 261 {
 262         u32 r;
 263         u32 mask;
 264
 265         BUG_ON(msb > lsb);
 266
 267         mask = ((1 << (lsb - msb + 1)) - 1) << (63 - lsb);
 268         r = (inst & ~mask) | ((value << (63 - lsb)) & mask);
 269
 270         return r;
 271 }
 272
 273 #define one_reg_size(id)        \
 274         (1ul << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
 275
 276 #define get_reg_val(id, reg)    ({              \
 277         union kvmppc_one_reg __u;               \
 278         switch (one_reg_size(id)) {             \
 279         case 4: __u.wval = (reg); break;        \
 280         case 8: __u.dval = (reg); break;        \
 281         default: BUG();                         \
 282         }                                       \
 283         __u;                                    \
 284 })
 285
 286
 287 #define set_reg_val(id, val)    ({              \
 288         u64 __v;                                \
 289         switch (one_reg_size(id)) {             \
 290         case 4: __v = (val).wval; break;        \
 291         case 8: __v = (val).dval; break;        \
 292         default: BUG();                         \
 293         }                                       \
 294         __v;                                    \
 295 })
 296
 297 int kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
 298 int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
 299
 300 int kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
 301 int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
 302
 303 int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
 304 int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
 305 int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
 306 int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
 307
 308 void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid);
 309
 310 struct openpic;
 311
 312 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 313 extern void kvm_cma_reserve(void) __init;
 314 static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
 315 {
 316         paca[cpu].kvm_hstate.xics_phys = addr;
 317 }
 318
 319 static inline u32 kvmppc_get_xics_latch(void)
 320 {
 321         u32 xirr;
 322
 323         xirr = get_paca()->kvm_hstate.saved_xirr;
 324         get_paca()->kvm_hstate.saved_xirr = 0;
 325         return xirr;
 326 }
 327
 328 static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi)
 329 {
 330         paca[cpu].kvm_hstate.host_ipi = host_ipi;
 331 }
 332
 333 static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
 334 {
 335         vcpu->kvm->arch.kvm_ops->fast_vcpu_kick(vcpu);
 336 }
 337
 338 #else
 339 static inline void __init kvm_cma_reserve(void)
 340 {}
 341
 342 static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
 343 {}
 344
 345 static inline u32 kvmppc_get_xics_latch(void)
 346 {
 347         return 0;
 348 }
 349
 350 static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi)
 351 {}
 352
 353 static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
 354 {
 355         kvm_vcpu_kick(vcpu);
 356 }
 357 #endif
 358
 359 #ifdef CONFIG_KVM_XICS
 360 static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu)
 361 {
 362         return vcpu->arch.irq_type == KVMPPC_IRQ_XICS;
 363 }
 364 extern void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu);
 365 extern int kvmppc_xics_create_icp(struct kvm_vcpu *vcpu, unsigned long server);
 366 extern int kvm_vm_ioctl_xics_irq(struct kvm *kvm, struct kvm_irq_level *args);
 367 extern int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd);
 368 extern u64 kvmppc_xics_get_icp(struct kvm_vcpu *vcpu);
 369 extern int kvmppc_xics_set_icp(struct kvm_vcpu *vcpu, u64 icpval);
 370 extern int kvmppc_xics_connect_vcpu(struct kvm_device *dev,
 371                         struct kvm_vcpu *vcpu, u32 cpu);
 372 #else
 373 static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu)
 374         { return 0; }
 375 static inline void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu) { }
 376 static inline int kvmppc_xics_create_icp(struct kvm_vcpu *vcpu,
 377                                          unsigned long server)
 378         { return -EINVAL; }
 379 static inline int kvm_vm_ioctl_xics_irq(struct kvm *kvm,
 380                                         struct kvm_irq_level *args)
 381         { return -ENOTTY; }
 382 static inline int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd)
 383         { return 0; }
 384 #endif
 385
 386 static inline void kvmppc_set_epr(struct kvm_vcpu *vcpu, u32 epr)
 387 {
 388 #ifdef CONFIG_KVM_BOOKE_HV
 389         mtspr(SPRN_GEPR, epr);
 390 #elif defined(CONFIG_BOOKE)
 391         vcpu->arch.epr = epr;
 392 #endif
 393 }
 394
 395 #ifdef CONFIG_KVM_MPIC
 396
 397 void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu);
 398 int kvmppc_mpic_connect_vcpu(struct kvm_device *dev, struct kvm_vcpu *vcpu,
 399                              u32 cpu);
 400 void kvmppc_mpic_disconnect_vcpu(struct openpic *opp, struct kvm_vcpu *vcpu);
 401
 402 #else
 403
 404 static inline void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu)
 405 {
 406 }
 407
 408 static inline int kvmppc_mpic_connect_vcpu(struct kvm_device *dev,
 409                 struct kvm_vcpu *vcpu, u32 cpu)
 410 {
 411         return -EINVAL;
 412 }
 413
 414 static inline void kvmppc_mpic_disconnect_vcpu(struct openpic *opp,
 415                 struct kvm_vcpu *vcpu)
 416 {
 417 }
 418
 419 #endif /* CONFIG_KVM_MPIC */
 420
 421 int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu,
 422                               struct kvm_config_tlb *cfg);
 423 int kvm_vcpu_ioctl_dirty_tlb(struct kvm_vcpu *vcpu,
 424                              struct kvm_dirty_tlb *cfg);
 425
 426 long kvmppc_alloc_lpid(void);
 427 void kvmppc_claim_lpid(long lpid);
 428 void kvmppc_free_lpid(long lpid);
 429 void kvmppc_init_lpid(unsigned long nr_lpids);
 430
 431 static inline void kvmppc_mmu_flush_icache(pfn_t pfn)
 432 {
 433         struct page *page;
 434         /*
 435          * We can only access pages that the kernel maps
 436          * as memory. Bail out for unmapped ones.
 437          */
 438         if (!pfn_valid(pfn))
 439                 return;
 440
 441         /* Clear i-cache for new pages */
 442         page = pfn_to_page(pfn);
 443         if (!test_bit(PG_arch_1, &page->flags)) {
 444                 flush_dcache_icache_page(page);
 445                 set_bit(PG_arch_1, &page->flags);
 446         }
 447 }
 448
 449 /*
 450  * Please call after prepare_to_enter. This function puts the lazy ee and irq
 451  * disabled tracking state back to normal mode, without actually enabling
 452  * interrupts.
 453  */
 454 static inline void kvmppc_fix_ee_before_entry(void)
 455 {
 456         trace_hardirqs_on();
 457
 458 #ifdef CONFIG_PPC64
 459         /*
 460          * To avoid races, the caller must have gone directly from having
 461          * interrupts fully-enabled to hard-disabled.
 462          */
 463         WARN_ON(local_paca->irq_happened != PACA_IRQ_HARD_DIS);
 464
 465         /* Only need to enable IRQs by hard enabling them after this */
 466         local_paca->irq_happened = 0;
 467         local_paca->soft_enabled = 1;
 468 #endif
 469 }
 470
 471 static inline ulong kvmppc_get_ea_indexed(struct kvm_vcpu *vcpu, int ra, int rb)
 472 {
 473         ulong ea;
 474         ulong msr_64bit = 0;
 475
 476         ea = kvmppc_get_gpr(vcpu, rb);
 477         if (ra)
 478                 ea += kvmppc_get_gpr(vcpu, ra);
 479
 480 #if defined(CONFIG_PPC_BOOK3E_64)
 481         msr_64bit = MSR_CM;
 482 #elif defined(CONFIG_PPC_BOOK3S_64)
 483         msr_64bit = MSR_SF;
 484 #endif
 485
 486         if (!(vcpu->arch.shared->msr & msr_64bit))
 487                 ea = (uint32_t)ea;
 488
 489         return ea;
 490 }
 491
 492 extern void xics_wake_cpu(int cpu);
 493
 494 #endif /* __POWERPC_KVM_PPC_H__ */