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. 2007 16 * 17 * Authors: Hollis Blanchard <hollisb@us.ibm.com> 18 */ 19 20 #ifndef __POWERPC_KVM_HOST_H__ 21 #define __POWERPC_KVM_HOST_H__ 22 23 #include <linux/mutex.h> 24 #include <linux/hrtimer.h> 25 #include <linux/interrupt.h> 26 #include <linux/types.h> 27 #include <linux/kvm_types.h> 28 #include <linux/threads.h> 29 #include <linux/spinlock.h> 30 #include <linux/kvm_para.h> 31 #include <linux/list.h> 32 #include <linux/atomic.h> 33 #include <asm/kvm_asm.h> 34 #include <asm/processor.h> 35 #include <asm/page.h> 36 #include <asm/cacheflush.h> 37 #include <asm/hvcall.h> 38 #include <asm/mce.h> 39 40 #define KVM_MAX_VCPUS NR_CPUS 41 #define KVM_MAX_VCORES NR_CPUS 42 #define KVM_USER_MEM_SLOTS 512 43 44 #include <asm/cputhreads.h> 45 46 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 47 #include <asm/kvm_book3s_asm.h> /* for MAX_SMT_THREADS */ 48 #define KVM_MAX_VCPU_ID (MAX_SMT_THREADS * KVM_MAX_VCORES) 49 #define KVM_MAX_NESTED_GUESTS KVMPPC_NR_LPIDS 50 51 #else 52 #define KVM_MAX_VCPU_ID KVM_MAX_VCPUS 53 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */ 54 55 #define __KVM_HAVE_ARCH_INTC_INITIALIZED 56 57 #define KVM_HALT_POLL_NS_DEFAULT 10000 /* 10 us */ 58 59 /* These values are internal and can be increased later */ 60 #define KVM_NR_IRQCHIPS 1 61 #define KVM_IRQCHIP_NUM_PINS 256 62 63 /* PPC-specific vcpu->requests bit members */ 64 #define KVM_REQ_WATCHDOG KVM_ARCH_REQ(0) 65 #define KVM_REQ_EPR_EXIT KVM_ARCH_REQ(1) 66 67 #include <linux/mmu_notifier.h> 68 69 #define KVM_ARCH_WANT_MMU_NOTIFIER 70 71 extern int kvm_unmap_hva_range(struct kvm *kvm, 72 unsigned long start, unsigned long end); 73 extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end); 74 extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva); 75 extern int kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte); 76 77 #define HPTEG_CACHE_NUM (1 << 15) 78 #define HPTEG_HASH_BITS_PTE 13 79 #define HPTEG_HASH_BITS_PTE_LONG 12 80 #define HPTEG_HASH_BITS_VPTE 13 81 #define HPTEG_HASH_BITS_VPTE_LONG 5 82 #define HPTEG_HASH_BITS_VPTE_64K 11 83 #define HPTEG_HASH_NUM_PTE (1 << HPTEG_HASH_BITS_PTE) 84 #define HPTEG_HASH_NUM_PTE_LONG (1 << HPTEG_HASH_BITS_PTE_LONG) 85 #define HPTEG_HASH_NUM_VPTE (1 << HPTEG_HASH_BITS_VPTE) 86 #define HPTEG_HASH_NUM_VPTE_LONG (1 << HPTEG_HASH_BITS_VPTE_LONG) 87 #define HPTEG_HASH_NUM_VPTE_64K (1 << HPTEG_HASH_BITS_VPTE_64K) 88 89 /* Physical Address Mask - allowed range of real mode RAM access */ 90 #define KVM_PAM 0x0fffffffffffffffULL 91 92 struct lppaca; 93 struct slb_shadow; 94 struct dtl_entry; 95 96 struct kvmppc_vcpu_book3s; 97 struct kvmppc_book3s_shadow_vcpu; 98 struct kvm_nested_guest; 99 100 struct kvm_vm_stat { 101 ulong remote_tlb_flush; 102 }; 103 104 struct kvm_vcpu_stat { 105 u64 sum_exits; 106 u64 mmio_exits; 107 u64 signal_exits; 108 u64 light_exits; 109 /* Account for special types of light exits: */ 110 u64 itlb_real_miss_exits; 111 u64 itlb_virt_miss_exits; 112 u64 dtlb_real_miss_exits; 113 u64 dtlb_virt_miss_exits; 114 u64 syscall_exits; 115 u64 isi_exits; 116 u64 dsi_exits; 117 u64 emulated_inst_exits; 118 u64 dec_exits; 119 u64 ext_intr_exits; 120 u64 halt_poll_success_ns; 121 u64 halt_poll_fail_ns; 122 u64 halt_wait_ns; 123 u64 halt_successful_poll; 124 u64 halt_attempted_poll; 125 u64 halt_successful_wait; 126 u64 halt_poll_invalid; 127 u64 halt_wakeup; 128 u64 dbell_exits; 129 u64 gdbell_exits; 130 u64 ld; 131 u64 st; 132 #ifdef CONFIG_PPC_BOOK3S 133 u64 pf_storage; 134 u64 pf_instruc; 135 u64 sp_storage; 136 u64 sp_instruc; 137 u64 queue_intr; 138 u64 ld_slow; 139 u64 st_slow; 140 #endif 141 u64 pthru_all; 142 u64 pthru_host; 143 u64 pthru_bad_aff; 144 }; 145 146 enum kvm_exit_types { 147 MMIO_EXITS, 148 SIGNAL_EXITS, 149 ITLB_REAL_MISS_EXITS, 150 ITLB_VIRT_MISS_EXITS, 151 DTLB_REAL_MISS_EXITS, 152 DTLB_VIRT_MISS_EXITS, 153 SYSCALL_EXITS, 154 ISI_EXITS, 155 DSI_EXITS, 156 EMULATED_INST_EXITS, 157 EMULATED_MTMSRWE_EXITS, 158 EMULATED_WRTEE_EXITS, 159 EMULATED_MTSPR_EXITS, 160 EMULATED_MFSPR_EXITS, 161 EMULATED_MTMSR_EXITS, 162 EMULATED_MFMSR_EXITS, 163 EMULATED_TLBSX_EXITS, 164 EMULATED_TLBWE_EXITS, 165 EMULATED_RFI_EXITS, 166 EMULATED_RFCI_EXITS, 167 EMULATED_RFDI_EXITS, 168 DEC_EXITS, 169 EXT_INTR_EXITS, 170 HALT_WAKEUP, 171 USR_PR_INST, 172 FP_UNAVAIL, 173 DEBUG_EXITS, 174 TIMEINGUEST, 175 DBELL_EXITS, 176 GDBELL_EXITS, 177 __NUMBER_OF_KVM_EXIT_TYPES 178 }; 179 180 /* allow access to big endian 32bit upper/lower parts and 64bit var */ 181 struct kvmppc_exit_timing { 182 union { 183 u64 tv64; 184 struct { 185 u32 tbu, tbl; 186 } tv32; 187 }; 188 }; 189 190 struct kvmppc_pginfo { 191 unsigned long pfn; 192 atomic_t refcnt; 193 }; 194 195 struct kvmppc_spapr_tce_iommu_table { 196 struct rcu_head rcu; 197 struct list_head next; 198 struct iommu_table *tbl; 199 struct kref kref; 200 }; 201 202 struct kvmppc_spapr_tce_table { 203 struct list_head list; 204 struct kvm *kvm; 205 u64 liobn; 206 struct rcu_head rcu; 207 u32 page_shift; 208 u64 offset; /* in pages */ 209 u64 size; /* window size in pages */ 210 struct list_head iommu_tables; 211 struct page *pages[0]; 212 }; 213 214 /* XICS components, defined in book3s_xics.c */ 215 struct kvmppc_xics; 216 struct kvmppc_icp; 217 extern struct kvm_device_ops kvm_xics_ops; 218 219 /* XIVE components, defined in book3s_xive.c */ 220 struct kvmppc_xive; 221 struct kvmppc_xive_vcpu; 222 extern struct kvm_device_ops kvm_xive_ops; 223 224 struct kvmppc_passthru_irqmap; 225 226 /* 227 * The reverse mapping array has one entry for each HPTE, 228 * which stores the guest's view of the second word of the HPTE 229 * (including the guest physical address of the mapping), 230 * plus forward and backward pointers in a doubly-linked ring 231 * of HPTEs that map the same host page. The pointers in this 232 * ring are 32-bit HPTE indexes, to save space. 233 */ 234 struct revmap_entry { 235 unsigned long guest_rpte; 236 unsigned int forw, back; 237 }; 238 239 /* 240 * We use the top bit of each memslot->arch.rmap entry as a lock bit, 241 * and bit 32 as a present flag. The bottom 32 bits are the 242 * index in the guest HPT of a HPTE that points to the page. 243 */ 244 #define KVMPPC_RMAP_LOCK_BIT 63 245 #define KVMPPC_RMAP_RC_SHIFT 32 246 #define KVMPPC_RMAP_REFERENCED (HPTE_R_R << KVMPPC_RMAP_RC_SHIFT) 247 #define KVMPPC_RMAP_PRESENT 0x100000000ul 248 #define KVMPPC_RMAP_INDEX 0xfffffffful 249 250 struct kvm_arch_memory_slot { 251 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 252 unsigned long *rmap; 253 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */ 254 }; 255 256 struct kvm_hpt_info { 257 /* Host virtual (linear mapping) address of guest HPT */ 258 unsigned long virt; 259 /* Array of reverse mapping entries for each guest HPTE */ 260 struct revmap_entry *rev; 261 /* Guest HPT size is 2**(order) bytes */ 262 u32 order; 263 /* 1 if HPT allocated with CMA, 0 otherwise */ 264 int cma; 265 }; 266 267 struct kvm_resize_hpt; 268 269 struct kvm_arch { 270 unsigned int lpid; 271 unsigned int smt_mode; /* # vcpus per virtual core */ 272 unsigned int emul_smt_mode; /* emualted SMT mode, on P9 */ 273 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 274 unsigned int tlb_sets; 275 struct kvm_hpt_info hpt; 276 atomic64_t mmio_update; 277 unsigned int host_lpid; 278 unsigned long host_lpcr; 279 unsigned long sdr1; 280 unsigned long host_sdr1; 281 unsigned long lpcr; 282 unsigned long vrma_slb_v; 283 int mmu_ready; 284 atomic_t vcpus_running; 285 u32 online_vcores; 286 atomic_t hpte_mod_interest; 287 cpumask_t need_tlb_flush; 288 cpumask_t cpu_in_guest; 289 u8 radix; 290 u8 fwnmi_enabled; 291 bool threads_indep; 292 bool nested_enable; 293 pgd_t *pgtable; 294 u64 process_table; 295 struct dentry *debugfs_dir; 296 struct dentry *htab_dentry; 297 struct dentry *radix_dentry; 298 struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */ 299 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */ 300 #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE 301 struct mutex hpt_mutex; 302 #endif 303 #ifdef CONFIG_PPC_BOOK3S_64 304 struct list_head spapr_tce_tables; 305 struct list_head rtas_tokens; 306 DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1); 307 #endif 308 #ifdef CONFIG_KVM_MPIC 309 struct openpic *mpic; 310 #endif 311 #ifdef CONFIG_KVM_XICS 312 struct kvmppc_xics *xics; 313 struct kvmppc_xive *xive; 314 struct kvmppc_passthru_irqmap *pimap; 315 #endif 316 struct kvmppc_ops *kvm_ops; 317 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 318 u64 l1_ptcr; 319 int max_nested_lpid; 320 struct kvm_nested_guest *nested_guests[KVM_MAX_NESTED_GUESTS]; 321 /* This array can grow quite large, keep it at the end */ 322 struct kvmppc_vcore *vcores[KVM_MAX_VCORES]; 323 #endif 324 }; 325 326 #define VCORE_ENTRY_MAP(vc) ((vc)->entry_exit_map & 0xff) 327 #define VCORE_EXIT_MAP(vc) ((vc)->entry_exit_map >> 8) 328 #define VCORE_IS_EXITING(vc) (VCORE_EXIT_MAP(vc) != 0) 329 330 /* This bit is used when a vcore exit is triggered from outside the vcore */ 331 #define VCORE_EXIT_REQ 0x10000 332 333 /* 334 * Values for vcore_state. 335 * Note that these are arranged such that lower values 336 * (< VCORE_SLEEPING) don't require stolen time accounting 337 * on load/unload, and higher values do. 338 */ 339 #define VCORE_INACTIVE 0 340 #define VCORE_PREEMPT 1 341 #define VCORE_PIGGYBACK 2 342 #define VCORE_SLEEPING 3 343 #define VCORE_RUNNING 4 344 #define VCORE_EXITING 5 345 #define VCORE_POLLING 6 346 347 /* 348 * Struct used to manage memory for a virtual processor area 349 * registered by a PAPR guest. There are three types of area 350 * that a guest can register. 351 */ 352 struct kvmppc_vpa { 353 unsigned long gpa; /* Current guest phys addr */ 354 void *pinned_addr; /* Address in kernel linear mapping */ 355 void *pinned_end; /* End of region */ 356 unsigned long next_gpa; /* Guest phys addr for update */ 357 unsigned long len; /* Number of bytes required */ 358 u8 update_pending; /* 1 => update pinned_addr from next_gpa */ 359 bool dirty; /* true => area has been modified by kernel */ 360 }; 361 362 struct kvmppc_pte { 363 ulong eaddr; 364 u64 vpage; 365 ulong raddr; 366 bool may_read : 1; 367 bool may_write : 1; 368 bool may_execute : 1; 369 unsigned long wimg; 370 unsigned long rc; 371 u8 page_size; /* MMU_PAGE_xxx */ 372 u8 page_shift; 373 }; 374 375 struct kvmppc_mmu { 376 /* book3s_64 only */ 377 void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs); 378 u64 (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr); 379 u64 (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr); 380 void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr); 381 void (*slbia)(struct kvm_vcpu *vcpu); 382 /* book3s */ 383 void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value); 384 u32 (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum); 385 int (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr, 386 struct kvmppc_pte *pte, bool data, bool iswrite); 387 void (*reset_msr)(struct kvm_vcpu *vcpu); 388 void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large); 389 int (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid); 390 u64 (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data); 391 bool (*is_dcbz32)(struct kvm_vcpu *vcpu); 392 }; 393 394 struct kvmppc_slb { 395 u64 esid; 396 u64 vsid; 397 u64 orige; 398 u64 origv; 399 bool valid : 1; 400 bool Ks : 1; 401 bool Kp : 1; 402 bool nx : 1; 403 bool large : 1; /* PTEs are 16MB */ 404 bool tb : 1; /* 1TB segment */ 405 bool class : 1; 406 u8 base_page_size; /* MMU_PAGE_xxx */ 407 }; 408 409 /* Struct used to accumulate timing information in HV real mode code */ 410 struct kvmhv_tb_accumulator { 411 u64 seqcount; /* used to synchronize access, also count * 2 */ 412 u64 tb_total; /* total time in timebase ticks */ 413 u64 tb_min; /* min time */ 414 u64 tb_max; /* max time */ 415 }; 416 417 #ifdef CONFIG_PPC_BOOK3S_64 418 struct kvmppc_irq_map { 419 u32 r_hwirq; 420 u32 v_hwirq; 421 struct irq_desc *desc; 422 }; 423 424 #define KVMPPC_PIRQ_MAPPED 1024 425 struct kvmppc_passthru_irqmap { 426 int n_mapped; 427 struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED]; 428 }; 429 #endif 430 431 # ifdef CONFIG_PPC_FSL_BOOK3E 432 #define KVMPPC_BOOKE_IAC_NUM 2 433 #define KVMPPC_BOOKE_DAC_NUM 2 434 # else 435 #define KVMPPC_BOOKE_IAC_NUM 4 436 #define KVMPPC_BOOKE_DAC_NUM 2 437 # endif 438 #define KVMPPC_BOOKE_MAX_IAC 4 439 #define KVMPPC_BOOKE_MAX_DAC 2 440 441 /* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */ 442 #define KVMPPC_EPR_NONE 0 /* EPR not supported */ 443 #define KVMPPC_EPR_USER 1 /* exit to userspace to fill EPR */ 444 #define KVMPPC_EPR_KERNEL 2 /* in-kernel irqchip */ 445 446 #define KVMPPC_IRQ_DEFAULT 0 447 #define KVMPPC_IRQ_MPIC 1 448 #define KVMPPC_IRQ_XICS 2 /* Includes a XIVE option */ 449 450 #define MMIO_HPTE_CACHE_SIZE 4 451 452 struct mmio_hpte_cache_entry { 453 unsigned long hpte_v; 454 unsigned long hpte_r; 455 unsigned long rpte; 456 unsigned long pte_index; 457 unsigned long eaddr; 458 unsigned long slb_v; 459 long mmio_update; 460 unsigned int slb_base_pshift; 461 }; 462 463 struct mmio_hpte_cache { 464 struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE]; 465 unsigned int index; 466 }; 467 468 #define KVMPPC_VSX_COPY_NONE 0 469 #define KVMPPC_VSX_COPY_WORD 1 470 #define KVMPPC_VSX_COPY_DWORD 2 471 #define KVMPPC_VSX_COPY_DWORD_LOAD_DUMP 3 472 #define KVMPPC_VSX_COPY_WORD_LOAD_DUMP 4 473 474 #define KVMPPC_VMX_COPY_BYTE 8 475 #define KVMPPC_VMX_COPY_HWORD 9 476 #define KVMPPC_VMX_COPY_WORD 10 477 #define KVMPPC_VMX_COPY_DWORD 11 478 479 struct openpic; 480 481 /* W0 and W1 of a XIVE thread management context */ 482 union xive_tma_w01 { 483 struct { 484 u8 nsr; 485 u8 cppr; 486 u8 ipb; 487 u8 lsmfb; 488 u8 ack; 489 u8 inc; 490 u8 age; 491 u8 pipr; 492 }; 493 __be64 w01; 494 }; 495 496 struct kvm_vcpu_arch { 497 ulong host_stack; 498 u32 host_pid; 499 #ifdef CONFIG_PPC_BOOK3S 500 struct kvmppc_slb slb[64]; 501 int slb_max; /* 1 + index of last valid entry in slb[] */ 502 int slb_nr; /* total number of entries in SLB */ 503 struct kvmppc_mmu mmu; 504 struct kvmppc_vcpu_book3s *book3s; 505 #endif 506 #ifdef CONFIG_PPC_BOOK3S_32 507 struct kvmppc_book3s_shadow_vcpu *shadow_vcpu; 508 #endif 509 510 struct pt_regs regs; 511 512 struct thread_fp_state fp; 513 514 #ifdef CONFIG_SPE 515 ulong evr[32]; 516 ulong spefscr; 517 ulong host_spefscr; 518 u64 acc; 519 #endif 520 #ifdef CONFIG_ALTIVEC 521 struct thread_vr_state vr; 522 #endif 523 524 #ifdef CONFIG_KVM_BOOKE_HV 525 u32 host_mas4; 526 u32 host_mas6; 527 u32 shadow_epcr; 528 u32 shadow_msrp; 529 u32 eplc; 530 u32 epsc; 531 u32 oldpir; 532 #endif 533 534 #if defined(CONFIG_BOOKE) 535 #if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT) 536 u32 epcr; 537 #endif 538 #endif 539 540 #ifdef CONFIG_PPC_BOOK3S 541 /* For Gekko paired singles */ 542 u32 qpr[32]; 543 #endif 544 545 #ifdef CONFIG_PPC_BOOK3S 546 ulong tar; 547 #endif 548 549 #ifdef CONFIG_PPC_BOOK3S 550 ulong hflags; 551 ulong guest_owned_ext; 552 ulong purr; 553 ulong spurr; 554 ulong ic; 555 ulong dscr; 556 ulong amr; 557 ulong uamor; 558 ulong iamr; 559 u32 ctrl; 560 u32 dabrx; 561 ulong dabr; 562 ulong dawr; 563 ulong dawrx; 564 ulong ciabr; 565 ulong cfar; 566 ulong ppr; 567 u32 pspb; 568 ulong fscr; 569 ulong shadow_fscr; 570 ulong ebbhr; 571 ulong ebbrr; 572 ulong bescr; 573 ulong csigr; 574 ulong tacr; 575 ulong tcscr; 576 ulong acop; 577 ulong wort; 578 ulong tid; 579 ulong psscr; 580 ulong hfscr; 581 ulong shadow_srr1; 582 #endif 583 u32 vrsave; /* also USPRG0 */ 584 u32 mmucr; 585 /* shadow_msr is unused for BookE HV */ 586 ulong shadow_msr; 587 ulong csrr0; 588 ulong csrr1; 589 ulong dsrr0; 590 ulong dsrr1; 591 ulong mcsrr0; 592 ulong mcsrr1; 593 ulong mcsr; 594 ulong dec; 595 #ifdef CONFIG_BOOKE 596 u32 decar; 597 #endif 598 /* Time base value when we entered the guest */ 599 u64 entry_tb; 600 u64 entry_vtb; 601 u64 entry_ic; 602 u32 tcr; 603 ulong tsr; /* we need to perform set/clr_bits() which requires ulong */ 604 u32 ivor[64]; 605 ulong ivpr; 606 u32 pvr; 607 608 u32 shadow_pid; 609 u32 shadow_pid1; 610 u32 pid; 611 u32 swap_pid; 612 613 u32 ccr0; 614 u32 ccr1; 615 u32 dbsr; 616 617 u64 mmcr[5]; 618 u32 pmc[8]; 619 u32 spmc[2]; 620 u64 siar; 621 u64 sdar; 622 u64 sier; 623 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM 624 u64 tfhar; 625 u64 texasr; 626 u64 tfiar; 627 u64 orig_texasr; 628 629 u32 cr_tm; 630 u64 xer_tm; 631 u64 lr_tm; 632 u64 ctr_tm; 633 u64 amr_tm; 634 u64 ppr_tm; 635 u64 dscr_tm; 636 u64 tar_tm; 637 638 ulong gpr_tm[32]; 639 640 struct thread_fp_state fp_tm; 641 642 struct thread_vr_state vr_tm; 643 u32 vrsave_tm; /* also USPRG0 */ 644 #endif 645 646 #ifdef CONFIG_KVM_EXIT_TIMING 647 struct mutex exit_timing_lock; 648 struct kvmppc_exit_timing timing_exit; 649 struct kvmppc_exit_timing timing_last_enter; 650 u32 last_exit_type; 651 u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES]; 652 u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 653 u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 654 u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 655 u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES]; 656 u64 timing_last_exit; 657 struct dentry *debugfs_exit_timing; 658 #endif 659 660 #ifdef CONFIG_PPC_BOOK3S 661 ulong fault_dar; 662 u32 fault_dsisr; 663 unsigned long intr_msr; 664 ulong fault_gpa; /* guest real address of page fault (POWER9) */ 665 #endif 666 667 #ifdef CONFIG_BOOKE 668 ulong fault_dear; 669 ulong fault_esr; 670 ulong queued_dear; 671 ulong queued_esr; 672 spinlock_t wdt_lock; 673 struct timer_list wdt_timer; 674 u32 tlbcfg[4]; 675 u32 tlbps[4]; 676 u32 mmucfg; 677 u32 eptcfg; 678 u32 epr; 679 u64 sprg9; 680 u32 pwrmgtcr0; 681 u32 crit_save; 682 /* guest debug registers*/ 683 struct debug_reg dbg_reg; 684 #endif 685 gpa_t paddr_accessed; 686 gva_t vaddr_accessed; 687 pgd_t *pgdir; 688 689 u16 io_gpr; /* GPR used as IO source/target */ 690 u8 mmio_host_swabbed; 691 u8 mmio_sign_extend; 692 /* conversion between single and double precision */ 693 u8 mmio_sp64_extend; 694 /* 695 * Number of simulations for vsx. 696 * If we use 2*8bytes to simulate 1*16bytes, 697 * then the number should be 2 and 698 * mmio_copy_type=KVMPPC_VSX_COPY_DWORD. 699 * If we use 4*4bytes to simulate 1*16bytes, 700 * the number should be 4 and 701 * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD. 702 */ 703 u8 mmio_vsx_copy_nums; 704 u8 mmio_vsx_offset; 705 u8 mmio_vmx_copy_nums; 706 u8 mmio_vmx_offset; 707 u8 mmio_copy_type; 708 u8 osi_needed; 709 u8 osi_enabled; 710 u8 papr_enabled; 711 u8 watchdog_enabled; 712 u8 sane; 713 u8 cpu_type; 714 u8 hcall_needed; 715 u8 epr_flags; /* KVMPPC_EPR_xxx */ 716 u8 epr_needed; 717 u8 external_oneshot; /* clear external irq after delivery */ 718 719 u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */ 720 721 struct hrtimer dec_timer; 722 u64 dec_jiffies; 723 u64 dec_expires; 724 unsigned long pending_exceptions; 725 u8 ceded; 726 u8 prodded; 727 u8 doorbell_request; 728 u8 irq_pending; /* Used by XIVE to signal pending guest irqs */ 729 u32 last_inst; 730 731 struct swait_queue_head *wqp; 732 struct kvmppc_vcore *vcore; 733 int ret; 734 int trap; 735 int state; 736 int ptid; 737 int thread_cpu; 738 int prev_cpu; 739 bool timer_running; 740 wait_queue_head_t cpu_run; 741 struct machine_check_event mce_evt; /* Valid if trap == 0x200 */ 742 743 struct kvm_vcpu_arch_shared *shared; 744 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE) 745 bool shared_big_endian; 746 #endif 747 unsigned long magic_page_pa; /* phys addr to map the magic page to */ 748 unsigned long magic_page_ea; /* effect. addr to map the magic page to */ 749 bool disable_kernel_nx; 750 751 int irq_type; /* one of KVM_IRQ_* */ 752 int irq_cpu_id; 753 struct openpic *mpic; /* KVM_IRQ_MPIC */ 754 #ifdef CONFIG_KVM_XICS 755 struct kvmppc_icp *icp; /* XICS presentation controller */ 756 struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */ 757 __be32 xive_cam_word; /* Cooked W2 in proper endian with valid bit */ 758 u8 xive_pushed; /* Is the VP pushed on the physical CPU ? */ 759 u8 xive_esc_on; /* Is the escalation irq enabled ? */ 760 union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */ 761 u64 xive_esc_raddr; /* Escalation interrupt ESB real addr */ 762 u64 xive_esc_vaddr; /* Escalation interrupt ESB virt addr */ 763 #endif 764 765 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE 766 struct kvm_vcpu_arch_shared shregs; 767 768 struct mmio_hpte_cache mmio_cache; 769 unsigned long pgfault_addr; 770 long pgfault_index; 771 unsigned long pgfault_hpte[2]; 772 struct mmio_hpte_cache_entry *pgfault_cache; 773 774 struct task_struct *run_task; 775 struct kvm_run *kvm_run; 776 777 spinlock_t vpa_update_lock; 778 struct kvmppc_vpa vpa; 779 struct kvmppc_vpa dtl; 780 struct dtl_entry *dtl_ptr; 781 unsigned long dtl_index; 782 u64 stolen_logged; 783 struct kvmppc_vpa slb_shadow; 784 785 spinlock_t tbacct_lock; 786 u64 busy_stolen; 787 u64 busy_preempt; 788 789 u32 emul_inst; 790 791 u32 online; 792 793 /* For support of nested guests */ 794 struct kvm_nested_guest *nested; 795 u32 nested_vcpu_id; 796 gpa_t nested_io_gpr; 797 #endif 798 799 #ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING 800 struct kvmhv_tb_accumulator *cur_activity; /* What we're timing */ 801 u64 cur_tb_start; /* when it started */ 802 struct kvmhv_tb_accumulator rm_entry; /* real-mode entry code */ 803 struct kvmhv_tb_accumulator rm_intr; /* real-mode intr handling */ 804 struct kvmhv_tb_accumulator rm_exit; /* real-mode exit code */ 805 struct kvmhv_tb_accumulator guest_time; /* guest execution */ 806 struct kvmhv_tb_accumulator cede_time; /* time napping inside guest */ 807 808 struct dentry *debugfs_dir; 809 struct dentry *debugfs_timings; 810 #endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */ 811 }; 812 813 #define VCPU_FPR(vcpu, i) (vcpu)->arch.fp.fpr[i][TS_FPROFFSET] 814 #define VCPU_VSX_FPR(vcpu, i, j) ((vcpu)->arch.fp.fpr[i][j]) 815 #define VCPU_VSX_VR(vcpu, i) ((vcpu)->arch.vr.vr[i]) 816 817 /* Values for vcpu->arch.state */ 818 #define KVMPPC_VCPU_NOTREADY 0 819 #define KVMPPC_VCPU_RUNNABLE 1 820 #define KVMPPC_VCPU_BUSY_IN_HOST 2 821 822 /* Values for vcpu->arch.io_gpr */ 823 #define KVM_MMIO_REG_MASK 0x003f 824 #define KVM_MMIO_REG_EXT_MASK 0xffc0 825 #define KVM_MMIO_REG_GPR 0x0000 826 #define KVM_MMIO_REG_FPR 0x0040 827 #define KVM_MMIO_REG_QPR 0x0080 828 #define KVM_MMIO_REG_FQPR 0x00c0 829 #define KVM_MMIO_REG_VSX 0x0100 830 #define KVM_MMIO_REG_VMX 0x0180 831 #define KVM_MMIO_REG_NESTED_GPR 0xffc0 832 833 834 #define __KVM_HAVE_ARCH_WQP 835 #define __KVM_HAVE_CREATE_DEVICE 836 837 static inline void kvm_arch_hardware_disable(void) {} 838 static inline void kvm_arch_hardware_unsetup(void) {} 839 static inline void kvm_arch_sync_events(struct kvm *kvm) {} 840 static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {} 841 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {} 842 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {} 843 static inline void kvm_arch_exit(void) {} 844 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {} 845 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {} 846 static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {} 847 848 #endif /* __POWERPC_KVM_HOST_H__ */ 849