include/linux/kvm_host.h

   1 #ifndef __KVM_HOST_H
   2 #define __KVM_HOST_H
   3
   4 /*
   5  * This work is licensed under the terms of the GNU GPL, version 2.  See
   6  * the COPYING file in the top-level directory.
   7  */
   8
   9 #include <linux/types.h>
  10 #include <linux/hardirq.h>
  11 #include <linux/list.h>
  12 #include <linux/mutex.h>
  13 #include <linux/spinlock.h>
  14 #include <linux/signal.h>
  15 #include <linux/sched.h>
  16 #include <linux/mm.h>
  17 #include <linux/preempt.h>
  18 #include <linux/marker.h>
  19 #include <linux/msi.h>
  20 #include <asm/signal.h>
  21
  22 #include <linux/kvm.h>
  23 #include <linux/kvm_para.h>
  24
  25 #include <linux/kvm_types.h>
  26
  27 #include <asm/kvm_host.h>
  28
  29 /*
  30  * vcpu->requests bit members
  31  */
  32 #define KVM_REQ_TLB_FLUSH          0
  33 #define KVM_REQ_MIGRATE_TIMER      1
  34 #define KVM_REQ_REPORT_TPR_ACCESS  2
  35 #define KVM_REQ_MMU_RELOAD         3
  36 #define KVM_REQ_TRIPLE_FAULT       4
  37 #define KVM_REQ_PENDING_TIMER      5
  38 #define KVM_REQ_UNHALT             6
  39 #define KVM_REQ_MMU_SYNC           7
  40 #define KVM_REQ_KVMCLOCK_UPDATE    8
  41 #define KVM_REQ_KICK               9
  42
  43 #define KVM_USERSPACE_IRQ_SOURCE_ID     0
  44
  45 struct kvm;
  46 struct kvm_vcpu;
  47 extern struct kmem_cache *kvm_vcpu_cache;
  48
  49 /*
  50  * It would be nice to use something smarter than a linear search, TBD...
  51  * Thankfully we dont expect many devices to register (famous last words :),
  52  * so until then it will suffice.  At least its abstracted so we can change
  53  * in one place.
  54  */
  55 struct kvm_io_bus {
  56         int                   dev_count;
  57 #define NR_IOBUS_DEVS 6
  58         struct kvm_io_device *devs[NR_IOBUS_DEVS];
  59 };
  60
  61 void kvm_io_bus_init(struct kvm_io_bus *bus);
  62 void kvm_io_bus_destroy(struct kvm_io_bus *bus);
  63 struct kvm_io_device *kvm_io_bus_find_dev(struct kvm_io_bus *bus,
  64                                           gpa_t addr, int len, int is_write);
  65 void __kvm_io_bus_register_dev(struct kvm_io_bus *bus,
  66                                struct kvm_io_device *dev);
  67 void kvm_io_bus_register_dev(struct kvm *kvm, struct kvm_io_bus *bus,
  68                              struct kvm_io_device *dev);
  69
  70 struct kvm_vcpu {
  71         struct kvm *kvm;
  72 #ifdef CONFIG_PREEMPT_NOTIFIERS
  73         struct preempt_notifier preempt_notifier;
  74 #endif
  75         int vcpu_id;
  76         struct mutex mutex;
  77         int   cpu;
  78         struct kvm_run *run;
  79         unsigned long requests;
  80         unsigned long guest_debug;
  81         int fpu_active;
  82         int guest_fpu_loaded;
  83         wait_queue_head_t wq;
  84         int sigset_active;
  85         sigset_t sigset;
  86         struct kvm_vcpu_stat stat;
  87
  88 #ifdef CONFIG_HAS_IOMEM
  89         int mmio_needed;
  90         int mmio_read_completed;
  91         int mmio_is_write;
  92         int mmio_size;
  93         unsigned char mmio_data[8];
  94         gpa_t mmio_phys_addr;
  95 #endif
  96
  97         struct kvm_vcpu_arch arch;
  98 };
  99
 100 struct kvm_memory_slot {
 101         gfn_t base_gfn;
 102         unsigned long npages;
 103         unsigned long flags;
 104         unsigned long *rmap;
 105         unsigned long *dirty_bitmap;
 106         struct {
 107                 unsigned long rmap_pde;
 108                 int write_count;
 109         } *lpage_info[KVM_NR_PAGE_SIZES - 1];
 110         unsigned long userspace_addr;
 111         int user_alloc;
 112 };
 113
 114 struct kvm_kernel_irq_routing_entry {
 115         u32 gsi;
 116         u32 type;
 117         int (*set)(struct kvm_kernel_irq_routing_entry *e,
 118                     struct kvm *kvm, int level);
 119         union {
 120                 struct {
 121                         unsigned irqchip;
 122                         unsigned pin;
 123                 } irqchip;
 124                 struct msi_msg msi;
 125         };
 126         struct list_head link;
 127 };
 128
 129 struct kvm {
 130         spinlock_t mmu_lock;
 131         spinlock_t requests_lock;
 132         struct rw_semaphore slots_lock;
 133         struct mm_struct *mm; /* userspace tied to this vm */
 134         int nmemslots;
 135         struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS +
 136                                         KVM_PRIVATE_MEM_SLOTS];
 137 #ifdef CONFIG_KVM_APIC_ARCHITECTURE
 138         u32 bsp_vcpu_id;
 139         struct kvm_vcpu *bsp_vcpu;
 140 #endif
 141         struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
 142         atomic_t online_vcpus;
 143         struct list_head vm_list;
 144         struct mutex lock;
 145         struct kvm_io_bus mmio_bus;
 146         struct kvm_io_bus pio_bus;
 147 #ifdef CONFIG_HAVE_KVM_EVENTFD
 148         struct {
 149                 spinlock_t        lock;
 150                 struct list_head  items;
 151         } irqfds;
 152 #endif
 153         struct kvm_vm_stat stat;
 154         struct kvm_arch arch;
 155         atomic_t users_count;
 156 #ifdef KVM_COALESCED_MMIO_PAGE_OFFSET
 157         struct kvm_coalesced_mmio_dev *coalesced_mmio_dev;
 158         struct kvm_coalesced_mmio_ring *coalesced_mmio_ring;
 159 #endif
 160
 161         struct mutex irq_lock;
 162 #ifdef CONFIG_HAVE_KVM_IRQCHIP
 163         struct list_head irq_routing; /* of kvm_kernel_irq_routing_entry */
 164         struct hlist_head mask_notifier_list;
 165 #endif
 166
 167 #ifdef KVM_ARCH_WANT_MMU_NOTIFIER
 168         struct mmu_notifier mmu_notifier;
 169         unsigned long mmu_notifier_seq;
 170         long mmu_notifier_count;
 171 #endif
 172 };
 173
 174 /* The guest did something we don't support. */
 175 #define pr_unimpl(vcpu, fmt, ...)                                       \
 176  do {                                                                   \
 177         if (printk_ratelimit())                                         \
 178                 printk(KERN_ERR "kvm: %i: cpu%i " fmt,                  \
 179                        current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \
 180  } while (0)
 181
 182 #define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt)
 183 #define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt)
 184
 185 static inline struct kvm_vcpu *kvm_get_vcpu(struct kvm *kvm, int i)
 186 {
 187         smp_rmb();
 188         return kvm->vcpus[i];
 189 }
 190
 191 #define kvm_for_each_vcpu(idx, vcpup, kvm) \
 192         for (idx = 0, vcpup = kvm_get_vcpu(kvm, idx); \
 193              idx < atomic_read(&kvm->online_vcpus) && vcpup; \
 194              vcpup = kvm_get_vcpu(kvm, ++idx))
 195
 196 int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id);
 197 void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
 198
 199 void vcpu_load(struct kvm_vcpu *vcpu);
 200 void vcpu_put(struct kvm_vcpu *vcpu);
 201
 202 int kvm_init(void *opaque, unsigned int vcpu_size,
 203                   struct module *module);
 204 void kvm_exit(void);
 205
 206 void kvm_get_kvm(struct kvm *kvm);
 207 void kvm_put_kvm(struct kvm *kvm);
 208
 209 #define HPA_MSB ((sizeof(hpa_t) * 8) - 1)
 210 #define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB)
 211 static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; }
 212 struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva);
 213
 214 extern struct page *bad_page;
 215 extern pfn_t bad_pfn;
 216
 217 int is_error_page(struct page *page);
 218 int is_error_pfn(pfn_t pfn);
 219 int kvm_is_error_hva(unsigned long addr);
 220 int kvm_set_memory_region(struct kvm *kvm,
 221                           struct kvm_userspace_memory_region *mem,
 222                           int user_alloc);
 223 int __kvm_set_memory_region(struct kvm *kvm,
 224                             struct kvm_userspace_memory_region *mem,
 225                             int user_alloc);
 226 int kvm_arch_set_memory_region(struct kvm *kvm,
 227                                 struct kvm_userspace_memory_region *mem,
 228                                 struct kvm_memory_slot old,
 229                                 int user_alloc);
 230 void kvm_disable_largepages(void);
 231 void kvm_arch_flush_shadow(struct kvm *kvm);
 232 gfn_t unalias_gfn(struct kvm *kvm, gfn_t gfn);
 233 struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn);
 234 unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn);
 235 void kvm_release_page_clean(struct page *page);
 236 void kvm_release_page_dirty(struct page *page);
 237 void kvm_set_page_dirty(struct page *page);
 238 void kvm_set_page_accessed(struct page *page);
 239
 240 pfn_t gfn_to_pfn(struct kvm *kvm, gfn_t gfn);
 241 void kvm_release_pfn_dirty(pfn_t);
 242 void kvm_release_pfn_clean(pfn_t pfn);
 243 void kvm_set_pfn_dirty(pfn_t pfn);
 244 void kvm_set_pfn_accessed(pfn_t pfn);
 245 void kvm_get_pfn(pfn_t pfn);
 246
 247 int kvm_read_guest_page(struct kvm *kvm, gfn_t gfn, void *data, int offset,
 248                         int len);
 249 int kvm_read_guest_atomic(struct kvm *kvm, gpa_t gpa, void *data,
 250                           unsigned long len);
 251 int kvm_read_guest(struct kvm *kvm, gpa_t gpa, void *data, unsigned long len);
 252 int kvm_write_guest_page(struct kvm *kvm, gfn_t gfn, const void *data,
 253                          int offset, int len);
 254 int kvm_write_guest(struct kvm *kvm, gpa_t gpa, const void *data,
 255                     unsigned long len);
 256 int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len);
 257 int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len);
 258 struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn);
 259 int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn);
 260 void mark_page_dirty(struct kvm *kvm, gfn_t gfn);
 261
 262 void kvm_vcpu_block(struct kvm_vcpu *vcpu);
 263 void kvm_resched(struct kvm_vcpu *vcpu);
 264 void kvm_load_guest_fpu(struct kvm_vcpu *vcpu);
 265 void kvm_put_guest_fpu(struct kvm_vcpu *vcpu);
 266 void kvm_flush_remote_tlbs(struct kvm *kvm);
 267 void kvm_reload_remote_mmus(struct kvm *kvm);
 268
 269 long kvm_arch_dev_ioctl(struct file *filp,
 270                         unsigned int ioctl, unsigned long arg);
 271 long kvm_arch_vcpu_ioctl(struct file *filp,
 272                          unsigned int ioctl, unsigned long arg);
 273
 274 int kvm_dev_ioctl_check_extension(long ext);
 275
 276 int kvm_get_dirty_log(struct kvm *kvm,
 277                         struct kvm_dirty_log *log, int *is_dirty);
 278 int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
 279                                 struct kvm_dirty_log *log);
 280
 281 int kvm_vm_ioctl_set_memory_region(struct kvm *kvm,
 282                                    struct
 283                                    kvm_userspace_memory_region *mem,
 284                                    int user_alloc);
 285 long kvm_arch_vm_ioctl(struct file *filp,
 286                        unsigned int ioctl, unsigned long arg);
 287
 288 int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu);
 289 int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu);
 290
 291 int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
 292                                     struct kvm_translation *tr);
 293
 294 int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs);
 295 int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs);
 296 int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
 297                                   struct kvm_sregs *sregs);
 298 int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
 299                                   struct kvm_sregs *sregs);
 300 int kvm_arch_vcpu_ioctl_get_mpstate(struct kvm_vcpu *vcpu,
 301                                     struct kvm_mp_state *mp_state);
 302 int kvm_arch_vcpu_ioctl_set_mpstate(struct kvm_vcpu *vcpu,
 303                                     struct kvm_mp_state *mp_state);
 304 int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
 305                                         struct kvm_guest_debug *dbg);
 306 int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run);
 307
 308 int kvm_arch_init(void *opaque);
 309 void kvm_arch_exit(void);
 310
 311 int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu);
 312 void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu);
 313
 314 void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu);
 315 void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
 316 void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu);
 317 struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm, unsigned int id);
 318 int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu);
 319 void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu);
 320
 321 int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu);
 322 void kvm_arch_hardware_enable(void *garbage);
 323 void kvm_arch_hardware_disable(void *garbage);
 324 int kvm_arch_hardware_setup(void);
 325 void kvm_arch_hardware_unsetup(void);
 326 void kvm_arch_check_processor_compat(void *rtn);
 327 int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu);
 328 int kvm_arch_interrupt_allowed(struct kvm_vcpu *vcpu);
 329
 330 void kvm_free_physmem(struct kvm *kvm);
 331
 332 struct  kvm *kvm_arch_create_vm(void);
 333 void kvm_arch_destroy_vm(struct kvm *kvm);
 334 void kvm_free_all_assigned_devices(struct kvm *kvm);
 335 void kvm_arch_sync_events(struct kvm *kvm);
 336
 337 int kvm_cpu_get_interrupt(struct kvm_vcpu *v);
 338 int kvm_cpu_has_interrupt(struct kvm_vcpu *v);
 339 int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu);
 340 void kvm_vcpu_kick(struct kvm_vcpu *vcpu);
 341
 342 int kvm_is_mmio_pfn(pfn_t pfn);
 343
 344 struct kvm_irq_ack_notifier {
 345         struct hlist_node link;
 346         unsigned gsi;
 347         void (*irq_acked)(struct kvm_irq_ack_notifier *kian);
 348 };
 349
 350 #define KVM_ASSIGNED_MSIX_PENDING               0x1
 351 struct kvm_guest_msix_entry {
 352         u32 vector;
 353         u16 entry;
 354         u16 flags;
 355 };
 356
 357 struct kvm_assigned_dev_kernel {
 358         struct kvm_irq_ack_notifier ack_notifier;
 359         struct work_struct interrupt_work;
 360         struct list_head list;
 361         int assigned_dev_id;
 362         int host_busnr;
 363         int host_devfn;
 364         unsigned int entries_nr;
 365         int host_irq;
 366         bool host_irq_disabled;
 367         struct msix_entry *host_msix_entries;
 368         int guest_irq;
 369         struct kvm_guest_msix_entry *guest_msix_entries;
 370         unsigned long irq_requested_type;
 371         int irq_source_id;
 372         int flags;
 373         struct pci_dev *dev;
 374         struct kvm *kvm;
 375         spinlock_t assigned_dev_lock;
 376 };
 377
 378 struct kvm_irq_mask_notifier {
 379         void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked);
 380         int irq;
 381         struct hlist_node link;
 382 };
 383
 384 void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq,
 385                                     struct kvm_irq_mask_notifier *kimn);
 386 void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq,
 387                                       struct kvm_irq_mask_notifier *kimn);
 388 void kvm_fire_mask_notifiers(struct kvm *kvm, int irq, bool mask);
 389
 390 int kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level);
 391 void kvm_notify_acked_irq(struct kvm *kvm, unsigned irqchip, unsigned pin);
 392 void kvm_register_irq_ack_notifier(struct kvm *kvm,
 393                                    struct kvm_irq_ack_notifier *kian);
 394 void kvm_unregister_irq_ack_notifier(struct kvm *kvm,
 395                                    struct kvm_irq_ack_notifier *kian);
 396 int kvm_request_irq_source_id(struct kvm *kvm);
 397 void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id);
 398
 399 /* For vcpu->arch.iommu_flags */
 400 #define KVM_IOMMU_CACHE_COHERENCY       0x1
 401
 402 #ifdef CONFIG_IOMMU_API
 403 int kvm_iommu_map_pages(struct kvm *kvm, gfn_t base_gfn,
 404                         unsigned long npages);
 405 int kvm_iommu_map_guest(struct kvm *kvm);
 406 int kvm_iommu_unmap_guest(struct kvm *kvm);
 407 int kvm_assign_device(struct kvm *kvm,
 408                       struct kvm_assigned_dev_kernel *assigned_dev);
 409 int kvm_deassign_device(struct kvm *kvm,
 410                         struct kvm_assigned_dev_kernel *assigned_dev);
 411 #else /* CONFIG_IOMMU_API */
 412 static inline int kvm_iommu_map_pages(struct kvm *kvm,
 413                                       gfn_t base_gfn,
 414                                       unsigned long npages)
 415 {
 416         return 0;
 417 }
 418
 419 static inline int kvm_iommu_map_guest(struct kvm *kvm)
 420 {
 421         return -ENODEV;
 422 }
 423
 424 static inline int kvm_iommu_unmap_guest(struct kvm *kvm)
 425 {
 426         return 0;
 427 }
 428
 429 static inline int kvm_assign_device(struct kvm *kvm,
 430                 struct kvm_assigned_dev_kernel *assigned_dev)
 431 {
 432         return 0;
 433 }
 434
 435 static inline int kvm_deassign_device(struct kvm *kvm,
 436                 struct kvm_assigned_dev_kernel *assigned_dev)
 437 {
 438         return 0;
 439 }
 440 #endif /* CONFIG_IOMMU_API */
 441
 442 static inline void kvm_guest_enter(void)
 443 {
 444         account_system_vtime(current);
 445         current->flags |= PF_VCPU;
 446 }
 447
 448 static inline void kvm_guest_exit(void)
 449 {
 450         account_system_vtime(current);
 451         current->flags &= ~PF_VCPU;
 452 }
 453
 454 static inline int memslot_id(struct kvm *kvm, struct kvm_memory_slot *slot)
 455 {
 456         return slot - kvm->memslots;
 457 }
 458
 459 static inline gpa_t gfn_to_gpa(gfn_t gfn)
 460 {
 461         return (gpa_t)gfn << PAGE_SHIFT;
 462 }
 463
 464 static inline hpa_t pfn_to_hpa(pfn_t pfn)
 465 {
 466         return (hpa_t)pfn << PAGE_SHIFT;
 467 }
 468
 469 static inline void kvm_migrate_timers(struct kvm_vcpu *vcpu)
 470 {
 471         set_bit(KVM_REQ_MIGRATE_TIMER, &vcpu->requests);
 472 }
 473
 474 enum kvm_stat_kind {
 475         KVM_STAT_VM,
 476         KVM_STAT_VCPU,
 477 };
 478
 479 struct kvm_stats_debugfs_item {
 480         const char *name;
 481         int offset;
 482         enum kvm_stat_kind kind;
 483         struct dentry *dentry;
 484 };
 485 extern struct kvm_stats_debugfs_item debugfs_entries[];
 486 extern struct dentry *kvm_debugfs_dir;
 487
 488 #ifdef KVM_ARCH_WANT_MMU_NOTIFIER
 489 static inline int mmu_notifier_retry(struct kvm_vcpu *vcpu, unsigned long mmu_seq)
 490 {
 491         if (unlikely(vcpu->kvm->mmu_notifier_count))
 492                 return 1;
 493         /*
 494          * Both reads happen under the mmu_lock and both values are
 495          * modified under mmu_lock, so there's no need of smb_rmb()
 496          * here in between, otherwise mmu_notifier_count should be
 497          * read before mmu_notifier_seq, see
 498          * mmu_notifier_invalidate_range_end write side.
 499          */
 500         if (vcpu->kvm->mmu_notifier_seq != mmu_seq)
 501                 return 1;
 502         return 0;
 503 }
 504 #endif
 505
 506 #ifdef CONFIG_HAVE_KVM_IRQCHIP
 507
 508 #define KVM_MAX_IRQ_ROUTES 1024
 509
 510 int kvm_setup_default_irq_routing(struct kvm *kvm);
 511 int kvm_set_irq_routing(struct kvm *kvm,
 512                         const struct kvm_irq_routing_entry *entries,
 513                         unsigned nr,
 514                         unsigned flags);
 515 void kvm_free_irq_routing(struct kvm *kvm);
 516
 517 #else
 518
 519 static inline void kvm_free_irq_routing(struct kvm *kvm) {}
 520
 521 #endif
 522
 523 #ifdef CONFIG_HAVE_KVM_EVENTFD
 524
 525 void kvm_irqfd_init(struct kvm *kvm);
 526 int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags);
 527 void kvm_irqfd_release(struct kvm *kvm);
 528
 529 #else
 530
 531 static inline void kvm_irqfd_init(struct kvm *kvm) {}
 532 static inline int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags)
 533 {
 534         return -EINVAL;
 535 }
 536
 537 static inline void kvm_irqfd_release(struct kvm *kvm) {}
 538
 539 #endif /* CONFIG_HAVE_KVM_EVENTFD */
 540
 541 #ifdef CONFIG_KVM_APIC_ARCHITECTURE
 542 static inline bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu)
 543 {
 544         return vcpu->kvm->bsp_vcpu_id == vcpu->vcpu_id;
 545 }
 546 #endif
 547 #endif