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TOMOYO Linux Cross Reference
Linux/arch/powerpc/include/asm/kvm_host.h

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  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 
 39 #define KVM_MAX_VCPUS           NR_CPUS
 40 #define KVM_MAX_VCORES          NR_CPUS
 41 #define KVM_USER_MEM_SLOTS      512
 42 
 43 #include <asm/cputhreads.h>
 44 #define KVM_MAX_VCPU_ID                (threads_per_subcore * KVM_MAX_VCORES)
 45 
 46 #define __KVM_HAVE_ARCH_INTC_INITIALIZED
 47 
 48 #define KVM_HALT_POLL_NS_DEFAULT 10000  /* 10 us */
 49 
 50 /* These values are internal and can be increased later */
 51 #define KVM_NR_IRQCHIPS          1
 52 #define KVM_IRQCHIP_NUM_PINS     256
 53 
 54 /* PPC-specific vcpu->requests bit members */
 55 #define KVM_REQ_WATCHDOG           8
 56 #define KVM_REQ_EPR_EXIT           9
 57 
 58 #include <linux/mmu_notifier.h>
 59 
 60 #define KVM_ARCH_WANT_MMU_NOTIFIER
 61 
 62 extern int kvm_unmap_hva(struct kvm *kvm, unsigned long hva);
 63 extern int kvm_unmap_hva_range(struct kvm *kvm,
 64                                unsigned long start, unsigned long end);
 65 extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
 66 extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
 67 extern void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
 68 
 69 static inline void kvm_arch_mmu_notifier_invalidate_page(struct kvm *kvm,
 70                                                          unsigned long address)
 71 {
 72 }
 73 
 74 #define HPTEG_CACHE_NUM                 (1 << 15)
 75 #define HPTEG_HASH_BITS_PTE             13
 76 #define HPTEG_HASH_BITS_PTE_LONG        12
 77 #define HPTEG_HASH_BITS_VPTE            13
 78 #define HPTEG_HASH_BITS_VPTE_LONG       5
 79 #define HPTEG_HASH_BITS_VPTE_64K        11
 80 #define HPTEG_HASH_NUM_PTE              (1 << HPTEG_HASH_BITS_PTE)
 81 #define HPTEG_HASH_NUM_PTE_LONG         (1 << HPTEG_HASH_BITS_PTE_LONG)
 82 #define HPTEG_HASH_NUM_VPTE             (1 << HPTEG_HASH_BITS_VPTE)
 83 #define HPTEG_HASH_NUM_VPTE_LONG        (1 << HPTEG_HASH_BITS_VPTE_LONG)
 84 #define HPTEG_HASH_NUM_VPTE_64K         (1 << HPTEG_HASH_BITS_VPTE_64K)
 85 
 86 /* Physical Address Mask - allowed range of real mode RAM access */
 87 #define KVM_PAM                 0x0fffffffffffffffULL
 88 
 89 struct lppaca;
 90 struct slb_shadow;
 91 struct dtl_entry;
 92 
 93 struct kvmppc_vcpu_book3s;
 94 struct kvmppc_book3s_shadow_vcpu;
 95 
 96 struct kvm_vm_stat {
 97         ulong remote_tlb_flush;
 98 };
 99 
100 struct kvm_vcpu_stat {
101         u64 sum_exits;
102         u64 mmio_exits;
103         u64 signal_exits;
104         u64 light_exits;
105         /* Account for special types of light exits: */
106         u64 itlb_real_miss_exits;
107         u64 itlb_virt_miss_exits;
108         u64 dtlb_real_miss_exits;
109         u64 dtlb_virt_miss_exits;
110         u64 syscall_exits;
111         u64 isi_exits;
112         u64 dsi_exits;
113         u64 emulated_inst_exits;
114         u64 dec_exits;
115         u64 ext_intr_exits;
116         u64 halt_poll_success_ns;
117         u64 halt_poll_fail_ns;
118         u64 halt_wait_ns;
119         u64 halt_successful_poll;
120         u64 halt_attempted_poll;
121         u64 halt_successful_wait;
122         u64 halt_poll_invalid;
123         u64 halt_wakeup;
124         u64 dbell_exits;
125         u64 gdbell_exits;
126         u64 ld;
127         u64 st;
128 #ifdef CONFIG_PPC_BOOK3S
129         u64 pf_storage;
130         u64 pf_instruc;
131         u64 sp_storage;
132         u64 sp_instruc;
133         u64 queue_intr;
134         u64 ld_slow;
135         u64 st_slow;
136 #endif
137         u64 pthru_all;
138         u64 pthru_host;
139         u64 pthru_bad_aff;
140 };
141 
142 enum kvm_exit_types {
143         MMIO_EXITS,
144         SIGNAL_EXITS,
145         ITLB_REAL_MISS_EXITS,
146         ITLB_VIRT_MISS_EXITS,
147         DTLB_REAL_MISS_EXITS,
148         DTLB_VIRT_MISS_EXITS,
149         SYSCALL_EXITS,
150         ISI_EXITS,
151         DSI_EXITS,
152         EMULATED_INST_EXITS,
153         EMULATED_MTMSRWE_EXITS,
154         EMULATED_WRTEE_EXITS,
155         EMULATED_MTSPR_EXITS,
156         EMULATED_MFSPR_EXITS,
157         EMULATED_MTMSR_EXITS,
158         EMULATED_MFMSR_EXITS,
159         EMULATED_TLBSX_EXITS,
160         EMULATED_TLBWE_EXITS,
161         EMULATED_RFI_EXITS,
162         EMULATED_RFCI_EXITS,
163         EMULATED_RFDI_EXITS,
164         DEC_EXITS,
165         EXT_INTR_EXITS,
166         HALT_WAKEUP,
167         USR_PR_INST,
168         FP_UNAVAIL,
169         DEBUG_EXITS,
170         TIMEINGUEST,
171         DBELL_EXITS,
172         GDBELL_EXITS,
173         __NUMBER_OF_KVM_EXIT_TYPES
174 };
175 
176 /* allow access to big endian 32bit upper/lower parts and 64bit var */
177 struct kvmppc_exit_timing {
178         union {
179                 u64 tv64;
180                 struct {
181                         u32 tbu, tbl;
182                 } tv32;
183         };
184 };
185 
186 struct kvmppc_pginfo {
187         unsigned long pfn;
188         atomic_t refcnt;
189 };
190 
191 struct kvmppc_spapr_tce_iommu_table {
192         struct rcu_head rcu;
193         struct list_head next;
194         struct iommu_table *tbl;
195         struct kref kref;
196 };
197 
198 struct kvmppc_spapr_tce_table {
199         struct list_head list;
200         struct kvm *kvm;
201         u64 liobn;
202         struct rcu_head rcu;
203         u32 page_shift;
204         u64 offset;             /* in pages */
205         u64 size;               /* window size in pages */
206         struct list_head iommu_tables;
207         struct page *pages[0];
208 };
209 
210 /* XICS components, defined in book3s_xics.c */
211 struct kvmppc_xics;
212 struct kvmppc_icp;
213 extern struct kvm_device_ops kvm_xics_ops;
214 
215 /* XIVE components, defined in book3s_xive.c */
216 struct kvmppc_xive;
217 struct kvmppc_xive_vcpu;
218 extern struct kvm_device_ops kvm_xive_ops;
219 
220 struct kvmppc_passthru_irqmap;
221 
222 /*
223  * The reverse mapping array has one entry for each HPTE,
224  * which stores the guest's view of the second word of the HPTE
225  * (including the guest physical address of the mapping),
226  * plus forward and backward pointers in a doubly-linked ring
227  * of HPTEs that map the same host page.  The pointers in this
228  * ring are 32-bit HPTE indexes, to save space.
229  */
230 struct revmap_entry {
231         unsigned long guest_rpte;
232         unsigned int forw, back;
233 };
234 
235 /*
236  * We use the top bit of each memslot->arch.rmap entry as a lock bit,
237  * and bit 32 as a present flag.  The bottom 32 bits are the
238  * index in the guest HPT of a HPTE that points to the page.
239  */
240 #define KVMPPC_RMAP_LOCK_BIT    63
241 #define KVMPPC_RMAP_RC_SHIFT    32
242 #define KVMPPC_RMAP_CHG_SHIFT   48
243 #define KVMPPC_RMAP_REFERENCED  (HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)
244 #define KVMPPC_RMAP_CHANGED     (HPTE_R_C << KVMPPC_RMAP_RC_SHIFT)
245 #define KVMPPC_RMAP_CHG_ORDER   (0x3ful << KVMPPC_RMAP_CHG_SHIFT)
246 #define KVMPPC_RMAP_PRESENT     0x100000000ul
247 #define KVMPPC_RMAP_INDEX       0xfffffffful
248 
249 struct kvm_arch_memory_slot {
250 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
251         unsigned long *rmap;
252 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
253 };
254 
255 struct kvm_hpt_info {
256         /* Host virtual (linear mapping) address of guest HPT */
257         unsigned long virt;
258         /* Array of reverse mapping entries for each guest HPTE */
259         struct revmap_entry *rev;
260         /* Guest HPT size is 2**(order) bytes */
261         u32 order;
262         /* 1 if HPT allocated with CMA, 0 otherwise */
263         int cma;
264 };
265 
266 struct kvm_resize_hpt;
267 
268 struct kvm_arch {
269         unsigned int lpid;
270 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
271         unsigned int tlb_sets;
272         struct kvm_hpt_info hpt;
273         atomic64_t mmio_update;
274         unsigned int host_lpid;
275         unsigned long host_lpcr;
276         unsigned long sdr1;
277         unsigned long host_sdr1;
278         int tlbie_lock;
279         unsigned long lpcr;
280         unsigned long vrma_slb_v;
281         int hpte_setup_done;
282         atomic_t vcpus_running;
283         u32 online_vcores;
284         atomic_t hpte_mod_interest;
285         cpumask_t need_tlb_flush;
286         cpumask_t cpu_in_guest;
287         u8 radix;
288         pgd_t *pgtable;
289         u64 process_table;
290         struct dentry *debugfs_dir;
291         struct dentry *htab_dentry;
292         struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */
293 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
294 #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
295         struct mutex hpt_mutex;
296 #endif
297 #ifdef CONFIG_PPC_BOOK3S_64
298         struct list_head spapr_tce_tables;
299         struct list_head rtas_tokens;
300         DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
301 #endif
302 #ifdef CONFIG_KVM_MPIC
303         struct openpic *mpic;
304 #endif
305 #ifdef CONFIG_KVM_XICS
306         struct kvmppc_xics *xics;
307         struct kvmppc_xive *xive;
308         struct kvmppc_passthru_irqmap *pimap;
309 #endif
310         struct kvmppc_ops *kvm_ops;
311 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
312         /* This array can grow quite large, keep it at the end */
313         struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
314 #endif
315 };
316 
317 #define VCORE_ENTRY_MAP(vc)     ((vc)->entry_exit_map & 0xff)
318 #define VCORE_EXIT_MAP(vc)      ((vc)->entry_exit_map >> 8)
319 #define VCORE_IS_EXITING(vc)    (VCORE_EXIT_MAP(vc) != 0)
320 
321 /* This bit is used when a vcore exit is triggered from outside the vcore */
322 #define VCORE_EXIT_REQ          0x10000
323 
324 /*
325  * Values for vcore_state.
326  * Note that these are arranged such that lower values
327  * (< VCORE_SLEEPING) don't require stolen time accounting
328  * on load/unload, and higher values do.
329  */
330 #define VCORE_INACTIVE  0
331 #define VCORE_PREEMPT   1
332 #define VCORE_PIGGYBACK 2
333 #define VCORE_SLEEPING  3
334 #define VCORE_RUNNING   4
335 #define VCORE_EXITING   5
336 #define VCORE_POLLING   6
337 
338 /*
339  * Struct used to manage memory for a virtual processor area
340  * registered by a PAPR guest.  There are three types of area
341  * that a guest can register.
342  */
343 struct kvmppc_vpa {
344         unsigned long gpa;      /* Current guest phys addr */
345         void *pinned_addr;      /* Address in kernel linear mapping */
346         void *pinned_end;       /* End of region */
347         unsigned long next_gpa; /* Guest phys addr for update */
348         unsigned long len;      /* Number of bytes required */
349         u8 update_pending;      /* 1 => update pinned_addr from next_gpa */
350         bool dirty;             /* true => area has been modified by kernel */
351 };
352 
353 struct kvmppc_pte {
354         ulong eaddr;
355         u64 vpage;
356         ulong raddr;
357         bool may_read           : 1;
358         bool may_write          : 1;
359         bool may_execute        : 1;
360         unsigned long wimg;
361         u8 page_size;           /* MMU_PAGE_xxx */
362 };
363 
364 struct kvmppc_mmu {
365         /* book3s_64 only */
366         void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
367         u64  (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
368         u64  (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
369         void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
370         void (*slbia)(struct kvm_vcpu *vcpu);
371         /* book3s */
372         void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
373         u32  (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
374         int  (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,
375                       struct kvmppc_pte *pte, bool data, bool iswrite);
376         void (*reset_msr)(struct kvm_vcpu *vcpu);
377         void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
378         int  (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
379         u64  (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
380         bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
381 };
382 
383 struct kvmppc_slb {
384         u64 esid;
385         u64 vsid;
386         u64 orige;
387         u64 origv;
388         bool valid      : 1;
389         bool Ks         : 1;
390         bool Kp         : 1;
391         bool nx         : 1;
392         bool large      : 1;    /* PTEs are 16MB */
393         bool tb         : 1;    /* 1TB segment */
394         bool class      : 1;
395         u8 base_page_size;      /* MMU_PAGE_xxx */
396 };
397 
398 /* Struct used to accumulate timing information in HV real mode code */
399 struct kvmhv_tb_accumulator {
400         u64     seqcount;       /* used to synchronize access, also count * 2 */
401         u64     tb_total;       /* total time in timebase ticks */
402         u64     tb_min;         /* min time */
403         u64     tb_max;         /* max time */
404 };
405 
406 #ifdef CONFIG_PPC_BOOK3S_64
407 struct kvmppc_irq_map {
408         u32     r_hwirq;
409         u32     v_hwirq;
410         struct irq_desc *desc;
411 };
412 
413 #define KVMPPC_PIRQ_MAPPED      1024
414 struct kvmppc_passthru_irqmap {
415         int n_mapped;
416         struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED];
417 };
418 #endif
419 
420 # ifdef CONFIG_PPC_FSL_BOOK3E
421 #define KVMPPC_BOOKE_IAC_NUM    2
422 #define KVMPPC_BOOKE_DAC_NUM    2
423 # else
424 #define KVMPPC_BOOKE_IAC_NUM    4
425 #define KVMPPC_BOOKE_DAC_NUM    2
426 # endif
427 #define KVMPPC_BOOKE_MAX_IAC    4
428 #define KVMPPC_BOOKE_MAX_DAC    2
429 
430 /* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
431 #define KVMPPC_EPR_NONE         0 /* EPR not supported */
432 #define KVMPPC_EPR_USER         1 /* exit to userspace to fill EPR */
433 #define KVMPPC_EPR_KERNEL       2 /* in-kernel irqchip */
434 
435 #define KVMPPC_IRQ_DEFAULT      0
436 #define KVMPPC_IRQ_MPIC         1
437 #define KVMPPC_IRQ_XICS         2 /* Includes a XIVE option */
438 
439 #define MMIO_HPTE_CACHE_SIZE    4
440 
441 struct mmio_hpte_cache_entry {
442         unsigned long hpte_v;
443         unsigned long hpte_r;
444         unsigned long rpte;
445         unsigned long pte_index;
446         unsigned long eaddr;
447         unsigned long slb_v;
448         long mmio_update;
449         unsigned int slb_base_pshift;
450 };
451 
452 struct mmio_hpte_cache {
453         struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE];
454         unsigned int index;
455 };
456 
457 #define KVMPPC_VSX_COPY_NONE            0
458 #define KVMPPC_VSX_COPY_WORD            1
459 #define KVMPPC_VSX_COPY_DWORD           2
460 #define KVMPPC_VSX_COPY_DWORD_LOAD_DUMP 3
461 
462 struct openpic;
463 
464 /* W0 and W1 of a XIVE thread management context */
465 union xive_tma_w01 {
466         struct {
467                 u8      nsr;
468                 u8      cppr;
469                 u8      ipb;
470                 u8      lsmfb;
471                 u8      ack;
472                 u8      inc;
473                 u8      age;
474                 u8      pipr;
475         };
476         __be64 w01;
477 };
478 
479 struct kvm_vcpu_arch {
480         ulong host_stack;
481         u32 host_pid;
482 #ifdef CONFIG_PPC_BOOK3S
483         struct kvmppc_slb slb[64];
484         int slb_max;            /* 1 + index of last valid entry in slb[] */
485         int slb_nr;             /* total number of entries in SLB */
486         struct kvmppc_mmu mmu;
487         struct kvmppc_vcpu_book3s *book3s;
488 #endif
489 #ifdef CONFIG_PPC_BOOK3S_32
490         struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
491 #endif
492 
493         ulong gpr[32];
494 
495         struct thread_fp_state fp;
496 
497 #ifdef CONFIG_SPE
498         ulong evr[32];
499         ulong spefscr;
500         ulong host_spefscr;
501         u64 acc;
502 #endif
503 #ifdef CONFIG_ALTIVEC
504         struct thread_vr_state vr;
505 #endif
506 
507 #ifdef CONFIG_KVM_BOOKE_HV
508         u32 host_mas4;
509         u32 host_mas6;
510         u32 shadow_epcr;
511         u32 shadow_msrp;
512         u32 eplc;
513         u32 epsc;
514         u32 oldpir;
515 #endif
516 
517 #if defined(CONFIG_BOOKE)
518 #if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
519         u32 epcr;
520 #endif
521 #endif
522 
523 #ifdef CONFIG_PPC_BOOK3S
524         /* For Gekko paired singles */
525         u32 qpr[32];
526 #endif
527 
528         ulong pc;
529         ulong ctr;
530         ulong lr;
531 #ifdef CONFIG_PPC_BOOK3S
532         ulong tar;
533 #endif
534 
535         ulong xer;
536         u32 cr;
537 
538 #ifdef CONFIG_PPC_BOOK3S
539         ulong hflags;
540         ulong guest_owned_ext;
541         ulong purr;
542         ulong spurr;
543         ulong ic;
544         ulong dscr;
545         ulong amr;
546         ulong uamor;
547         ulong iamr;
548         u32 ctrl;
549         u32 dabrx;
550         ulong dabr;
551         ulong dawr;
552         ulong dawrx;
553         ulong ciabr;
554         ulong cfar;
555         ulong ppr;
556         u32 pspb;
557         ulong fscr;
558         ulong shadow_fscr;
559         ulong ebbhr;
560         ulong ebbrr;
561         ulong bescr;
562         ulong csigr;
563         ulong tacr;
564         ulong tcscr;
565         ulong acop;
566         ulong wort;
567         ulong tid;
568         ulong psscr;
569         ulong shadow_srr1;
570 #endif
571         u32 vrsave; /* also USPRG0 */
572         u32 mmucr;
573         /* shadow_msr is unused for BookE HV */
574         ulong shadow_msr;
575         ulong csrr0;
576         ulong csrr1;
577         ulong dsrr0;
578         ulong dsrr1;
579         ulong mcsrr0;
580         ulong mcsrr1;
581         ulong mcsr;
582         u32 dec;
583 #ifdef CONFIG_BOOKE
584         u32 decar;
585 #endif
586         /* Time base value when we entered the guest */
587         u64 entry_tb;
588         u64 entry_vtb;
589         u64 entry_ic;
590         u32 tcr;
591         ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
592         u32 ivor[64];
593         ulong ivpr;
594         u32 pvr;
595 
596         u32 shadow_pid;
597         u32 shadow_pid1;
598         u32 pid;
599         u32 swap_pid;
600 
601         u32 ccr0;
602         u32 ccr1;
603         u32 dbsr;
604 
605         u64 mmcr[5];
606         u32 pmc[8];
607         u32 spmc[2];
608         u64 siar;
609         u64 sdar;
610         u64 sier;
611 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
612         u64 tfhar;
613         u64 texasr;
614         u64 tfiar;
615 
616         u32 cr_tm;
617         u64 xer_tm;
618         u64 lr_tm;
619         u64 ctr_tm;
620         u64 amr_tm;
621         u64 ppr_tm;
622         u64 dscr_tm;
623         u64 tar_tm;
624 
625         ulong gpr_tm[32];
626 
627         struct thread_fp_state fp_tm;
628 
629         struct thread_vr_state vr_tm;
630         u32 vrsave_tm; /* also USPRG0 */
631 
632 #endif
633 
634 #ifdef CONFIG_KVM_EXIT_TIMING
635         struct mutex exit_timing_lock;
636         struct kvmppc_exit_timing timing_exit;
637         struct kvmppc_exit_timing timing_last_enter;
638         u32 last_exit_type;
639         u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
640         u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
641         u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
642         u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
643         u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
644         u64 timing_last_exit;
645         struct dentry *debugfs_exit_timing;
646 #endif
647 
648 #ifdef CONFIG_PPC_BOOK3S
649         ulong fault_dar;
650         u32 fault_dsisr;
651         unsigned long intr_msr;
652         ulong fault_gpa;        /* guest real address of page fault (POWER9) */
653 #endif
654 
655 #ifdef CONFIG_BOOKE
656         ulong fault_dear;
657         ulong fault_esr;
658         ulong queued_dear;
659         ulong queued_esr;
660         spinlock_t wdt_lock;
661         struct timer_list wdt_timer;
662         u32 tlbcfg[4];
663         u32 tlbps[4];
664         u32 mmucfg;
665         u32 eptcfg;
666         u32 epr;
667         u64 sprg9;
668         u32 pwrmgtcr0;
669         u32 crit_save;
670         /* guest debug registers*/
671         struct debug_reg dbg_reg;
672 #endif
673         gpa_t paddr_accessed;
674         gva_t vaddr_accessed;
675         pgd_t *pgdir;
676 
677         u8 io_gpr; /* GPR used as IO source/target */
678         u8 mmio_host_swabbed;
679         u8 mmio_sign_extend;
680         /* conversion between single and double precision */
681         u8 mmio_sp64_extend;
682         /*
683          * Number of simulations for vsx.
684          * If we use 2*8bytes to simulate 1*16bytes,
685          * then the number should be 2 and
686          * mmio_vsx_copy_type=KVMPPC_VSX_COPY_DWORD.
687          * If we use 4*4bytes to simulate 1*16bytes,
688          * the number should be 4 and
689          * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD.
690          */
691         u8 mmio_vsx_copy_nums;
692         u8 mmio_vsx_offset;
693         u8 mmio_vsx_copy_type;
694         u8 mmio_vsx_tx_sx_enabled;
695         u8 osi_needed;
696         u8 osi_enabled;
697         u8 papr_enabled;
698         u8 watchdog_enabled;
699         u8 sane;
700         u8 cpu_type;
701         u8 hcall_needed;
702         u8 epr_flags; /* KVMPPC_EPR_xxx */
703         u8 epr_needed;
704 
705         u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
706 
707         struct hrtimer dec_timer;
708         u64 dec_jiffies;
709         u64 dec_expires;
710         unsigned long pending_exceptions;
711         u8 ceded;
712         u8 prodded;
713         u32 last_inst;
714 
715         struct swait_queue_head *wqp;
716         struct kvmppc_vcore *vcore;
717         int ret;
718         int trap;
719         int state;
720         int ptid;
721         int thread_cpu;
722         int prev_cpu;
723         bool timer_running;
724         wait_queue_head_t cpu_run;
725 
726         struct kvm_vcpu_arch_shared *shared;
727 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
728         bool shared_big_endian;
729 #endif
730         unsigned long magic_page_pa; /* phys addr to map the magic page to */
731         unsigned long magic_page_ea; /* effect. addr to map the magic page to */
732         bool disable_kernel_nx;
733 
734         int irq_type;           /* one of KVM_IRQ_* */
735         int irq_cpu_id;
736         struct openpic *mpic;   /* KVM_IRQ_MPIC */
737 #ifdef CONFIG_KVM_XICS
738         struct kvmppc_icp *icp; /* XICS presentation controller */
739         struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */
740         __be32 xive_cam_word;    /* Cooked W2 in proper endian with valid bit */
741         u32 xive_pushed;         /* Is the VP pushed on the physical CPU ? */
742         union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */
743 #endif
744 
745 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
746         struct kvm_vcpu_arch_shared shregs;
747 
748         struct mmio_hpte_cache mmio_cache;
749         unsigned long pgfault_addr;
750         long pgfault_index;
751         unsigned long pgfault_hpte[2];
752         struct mmio_hpte_cache_entry *pgfault_cache;
753 
754         struct task_struct *run_task;
755         struct kvm_run *kvm_run;
756 
757         spinlock_t vpa_update_lock;
758         struct kvmppc_vpa vpa;
759         struct kvmppc_vpa dtl;
760         struct dtl_entry *dtl_ptr;
761         unsigned long dtl_index;
762         u64 stolen_logged;
763         struct kvmppc_vpa slb_shadow;
764 
765         spinlock_t tbacct_lock;
766         u64 busy_stolen;
767         u64 busy_preempt;
768 
769         u32 emul_inst;
770 #endif
771 
772 #ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
773         struct kvmhv_tb_accumulator *cur_activity;      /* What we're timing */
774         u64     cur_tb_start;                   /* when it started */
775         struct kvmhv_tb_accumulator rm_entry;   /* real-mode entry code */
776         struct kvmhv_tb_accumulator rm_intr;    /* real-mode intr handling */
777         struct kvmhv_tb_accumulator rm_exit;    /* real-mode exit code */
778         struct kvmhv_tb_accumulator guest_time; /* guest execution */
779         struct kvmhv_tb_accumulator cede_time;  /* time napping inside guest */
780 
781         struct dentry *debugfs_dir;
782         struct dentry *debugfs_timings;
783 #endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
784 };
785 
786 #define VCPU_FPR(vcpu, i)       (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
787 #define VCPU_VSX_FPR(vcpu, i, j)        ((vcpu)->arch.fp.fpr[i][j])
788 #define VCPU_VSX_VR(vcpu, i)            ((vcpu)->arch.vr.vr[i])
789 
790 /* Values for vcpu->arch.state */
791 #define KVMPPC_VCPU_NOTREADY            0
792 #define KVMPPC_VCPU_RUNNABLE            1
793 #define KVMPPC_VCPU_BUSY_IN_HOST        2
794 
795 /* Values for vcpu->arch.io_gpr */
796 #define KVM_MMIO_REG_MASK       0x001f
797 #define KVM_MMIO_REG_EXT_MASK   0xffe0
798 #define KVM_MMIO_REG_GPR        0x0000
799 #define KVM_MMIO_REG_FPR        0x0020
800 #define KVM_MMIO_REG_QPR        0x0040
801 #define KVM_MMIO_REG_FQPR       0x0060
802 #define KVM_MMIO_REG_VSX        0x0080
803 
804 #define __KVM_HAVE_ARCH_WQP
805 #define __KVM_HAVE_CREATE_DEVICE
806 
807 static inline void kvm_arch_hardware_disable(void) {}
808 static inline void kvm_arch_hardware_unsetup(void) {}
809 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
810 static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {}
811 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
812 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
813 static inline void kvm_arch_exit(void) {}
814 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
815 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
816 static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
817 
818 #endif /* __POWERPC_KVM_HOST_H__ */
819 

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