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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 #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 #define KVM_MAX_VCPU_ID                (threads_per_subcore * KVM_MAX_VCORES)
 46 
 47 #define __KVM_HAVE_ARCH_INTC_INITIALIZED
 48 
 49 #define KVM_HALT_POLL_NS_DEFAULT 10000  /* 10 us */
 50 
 51 /* These values are internal and can be increased later */
 52 #define KVM_NR_IRQCHIPS          1
 53 #define KVM_IRQCHIP_NUM_PINS     256
 54 
 55 /* PPC-specific vcpu->requests bit members */
 56 #define KVM_REQ_WATCHDOG        KVM_ARCH_REQ(0)
 57 #define KVM_REQ_EPR_EXIT        KVM_ARCH_REQ(1)
 58 
 59 #include <linux/mmu_notifier.h>
 60 
 61 #define KVM_ARCH_WANT_MMU_NOTIFIER
 62 
 63 extern int kvm_unmap_hva(struct kvm *kvm, unsigned long hva);
 64 extern int kvm_unmap_hva_range(struct kvm *kvm,
 65                                unsigned long start, unsigned long end);
 66 extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
 67 extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
 68 extern void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
 69 
 70 #define HPTEG_CACHE_NUM                 (1 << 15)
 71 #define HPTEG_HASH_BITS_PTE             13
 72 #define HPTEG_HASH_BITS_PTE_LONG        12
 73 #define HPTEG_HASH_BITS_VPTE            13
 74 #define HPTEG_HASH_BITS_VPTE_LONG       5
 75 #define HPTEG_HASH_BITS_VPTE_64K        11
 76 #define HPTEG_HASH_NUM_PTE              (1 << HPTEG_HASH_BITS_PTE)
 77 #define HPTEG_HASH_NUM_PTE_LONG         (1 << HPTEG_HASH_BITS_PTE_LONG)
 78 #define HPTEG_HASH_NUM_VPTE             (1 << HPTEG_HASH_BITS_VPTE)
 79 #define HPTEG_HASH_NUM_VPTE_LONG        (1 << HPTEG_HASH_BITS_VPTE_LONG)
 80 #define HPTEG_HASH_NUM_VPTE_64K         (1 << HPTEG_HASH_BITS_VPTE_64K)
 81 
 82 /* Physical Address Mask - allowed range of real mode RAM access */
 83 #define KVM_PAM                 0x0fffffffffffffffULL
 84 
 85 struct lppaca;
 86 struct slb_shadow;
 87 struct dtl_entry;
 88 
 89 struct kvmppc_vcpu_book3s;
 90 struct kvmppc_book3s_shadow_vcpu;
 91 
 92 struct kvm_vm_stat {
 93         ulong remote_tlb_flush;
 94 };
 95 
 96 struct kvm_vcpu_stat {
 97         u64 sum_exits;
 98         u64 mmio_exits;
 99         u64 signal_exits;
100         u64 light_exits;
101         /* Account for special types of light exits: */
102         u64 itlb_real_miss_exits;
103         u64 itlb_virt_miss_exits;
104         u64 dtlb_real_miss_exits;
105         u64 dtlb_virt_miss_exits;
106         u64 syscall_exits;
107         u64 isi_exits;
108         u64 dsi_exits;
109         u64 emulated_inst_exits;
110         u64 dec_exits;
111         u64 ext_intr_exits;
112         u64 halt_poll_success_ns;
113         u64 halt_poll_fail_ns;
114         u64 halt_wait_ns;
115         u64 halt_successful_poll;
116         u64 halt_attempted_poll;
117         u64 halt_successful_wait;
118         u64 halt_poll_invalid;
119         u64 halt_wakeup;
120         u64 dbell_exits;
121         u64 gdbell_exits;
122         u64 ld;
123         u64 st;
124 #ifdef CONFIG_PPC_BOOK3S
125         u64 pf_storage;
126         u64 pf_instruc;
127         u64 sp_storage;
128         u64 sp_instruc;
129         u64 queue_intr;
130         u64 ld_slow;
131         u64 st_slow;
132 #endif
133         u64 pthru_all;
134         u64 pthru_host;
135         u64 pthru_bad_aff;
136 };
137 
138 enum kvm_exit_types {
139         MMIO_EXITS,
140         SIGNAL_EXITS,
141         ITLB_REAL_MISS_EXITS,
142         ITLB_VIRT_MISS_EXITS,
143         DTLB_REAL_MISS_EXITS,
144         DTLB_VIRT_MISS_EXITS,
145         SYSCALL_EXITS,
146         ISI_EXITS,
147         DSI_EXITS,
148         EMULATED_INST_EXITS,
149         EMULATED_MTMSRWE_EXITS,
150         EMULATED_WRTEE_EXITS,
151         EMULATED_MTSPR_EXITS,
152         EMULATED_MFSPR_EXITS,
153         EMULATED_MTMSR_EXITS,
154         EMULATED_MFMSR_EXITS,
155         EMULATED_TLBSX_EXITS,
156         EMULATED_TLBWE_EXITS,
157         EMULATED_RFI_EXITS,
158         EMULATED_RFCI_EXITS,
159         EMULATED_RFDI_EXITS,
160         DEC_EXITS,
161         EXT_INTR_EXITS,
162         HALT_WAKEUP,
163         USR_PR_INST,
164         FP_UNAVAIL,
165         DEBUG_EXITS,
166         TIMEINGUEST,
167         DBELL_EXITS,
168         GDBELL_EXITS,
169         __NUMBER_OF_KVM_EXIT_TYPES
170 };
171 
172 /* allow access to big endian 32bit upper/lower parts and 64bit var */
173 struct kvmppc_exit_timing {
174         union {
175                 u64 tv64;
176                 struct {
177                         u32 tbu, tbl;
178                 } tv32;
179         };
180 };
181 
182 struct kvmppc_pginfo {
183         unsigned long pfn;
184         atomic_t refcnt;
185 };
186 
187 struct kvmppc_spapr_tce_iommu_table {
188         struct rcu_head rcu;
189         struct list_head next;
190         struct iommu_table *tbl;
191         struct kref kref;
192 };
193 
194 struct kvmppc_spapr_tce_table {
195         struct list_head list;
196         struct kvm *kvm;
197         u64 liobn;
198         struct rcu_head rcu;
199         u32 page_shift;
200         u64 offset;             /* in pages */
201         u64 size;               /* window size in pages */
202         struct list_head iommu_tables;
203         struct page *pages[0];
204 };
205 
206 /* XICS components, defined in book3s_xics.c */
207 struct kvmppc_xics;
208 struct kvmppc_icp;
209 extern struct kvm_device_ops kvm_xics_ops;
210 
211 /* XIVE components, defined in book3s_xive.c */
212 struct kvmppc_xive;
213 struct kvmppc_xive_vcpu;
214 extern struct kvm_device_ops kvm_xive_ops;
215 
216 struct kvmppc_passthru_irqmap;
217 
218 /*
219  * The reverse mapping array has one entry for each HPTE,
220  * which stores the guest's view of the second word of the HPTE
221  * (including the guest physical address of the mapping),
222  * plus forward and backward pointers in a doubly-linked ring
223  * of HPTEs that map the same host page.  The pointers in this
224  * ring are 32-bit HPTE indexes, to save space.
225  */
226 struct revmap_entry {
227         unsigned long guest_rpte;
228         unsigned int forw, back;
229 };
230 
231 /*
232  * We use the top bit of each memslot->arch.rmap entry as a lock bit,
233  * and bit 32 as a present flag.  The bottom 32 bits are the
234  * index in the guest HPT of a HPTE that points to the page.
235  */
236 #define KVMPPC_RMAP_LOCK_BIT    63
237 #define KVMPPC_RMAP_RC_SHIFT    32
238 #define KVMPPC_RMAP_CHG_SHIFT   48
239 #define KVMPPC_RMAP_REFERENCED  (HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)
240 #define KVMPPC_RMAP_CHANGED     (HPTE_R_C << KVMPPC_RMAP_RC_SHIFT)
241 #define KVMPPC_RMAP_CHG_ORDER   (0x3ful << KVMPPC_RMAP_CHG_SHIFT)
242 #define KVMPPC_RMAP_PRESENT     0x100000000ul
243 #define KVMPPC_RMAP_INDEX       0xfffffffful
244 
245 struct kvm_arch_memory_slot {
246 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
247         unsigned long *rmap;
248 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
249 };
250 
251 struct kvm_hpt_info {
252         /* Host virtual (linear mapping) address of guest HPT */
253         unsigned long virt;
254         /* Array of reverse mapping entries for each guest HPTE */
255         struct revmap_entry *rev;
256         /* Guest HPT size is 2**(order) bytes */
257         u32 order;
258         /* 1 if HPT allocated with CMA, 0 otherwise */
259         int cma;
260 };
261 
262 struct kvm_resize_hpt;
263 
264 struct kvm_arch {
265         unsigned int lpid;
266         unsigned int smt_mode;          /* # vcpus per virtual core */
267         unsigned int emul_smt_mode;     /* emualted SMT mode, on P9 */
268 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
269         unsigned int tlb_sets;
270         struct kvm_hpt_info hpt;
271         atomic64_t mmio_update;
272         unsigned int host_lpid;
273         unsigned long host_lpcr;
274         unsigned long sdr1;
275         unsigned long host_sdr1;
276         int tlbie_lock;
277         unsigned long lpcr;
278         unsigned long vrma_slb_v;
279         int hpte_setup_done;
280         atomic_t vcpus_running;
281         u32 online_vcores;
282         atomic_t hpte_mod_interest;
283         cpumask_t need_tlb_flush;
284         cpumask_t cpu_in_guest;
285         u8 radix;
286         u8 fwnmi_enabled;
287         pgd_t *pgtable;
288         u64 process_table;
289         struct dentry *debugfs_dir;
290         struct dentry *htab_dentry;
291         struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */
292 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
293 #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
294         struct mutex hpt_mutex;
295 #endif
296 #ifdef CONFIG_PPC_BOOK3S_64
297         struct list_head spapr_tce_tables;
298         struct list_head rtas_tokens;
299         DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
300 #endif
301 #ifdef CONFIG_KVM_MPIC
302         struct openpic *mpic;
303 #endif
304 #ifdef CONFIG_KVM_XICS
305         struct kvmppc_xics *xics;
306         struct kvmppc_xive *xive;
307         struct kvmppc_passthru_irqmap *pimap;
308 #endif
309         struct kvmppc_ops *kvm_ops;
310 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
311         /* This array can grow quite large, keep it at the end */
312         struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
313 #endif
314 };
315 
316 #define VCORE_ENTRY_MAP(vc)     ((vc)->entry_exit_map & 0xff)
317 #define VCORE_EXIT_MAP(vc)      ((vc)->entry_exit_map >> 8)
318 #define VCORE_IS_EXITING(vc)    (VCORE_EXIT_MAP(vc) != 0)
319 
320 /* This bit is used when a vcore exit is triggered from outside the vcore */
321 #define VCORE_EXIT_REQ          0x10000
322 
323 /*
324  * Values for vcore_state.
325  * Note that these are arranged such that lower values
326  * (< VCORE_SLEEPING) don't require stolen time accounting
327  * on load/unload, and higher values do.
328  */
329 #define VCORE_INACTIVE  0
330 #define VCORE_PREEMPT   1
331 #define VCORE_PIGGYBACK 2
332 #define VCORE_SLEEPING  3
333 #define VCORE_RUNNING   4
334 #define VCORE_EXITING   5
335 #define VCORE_POLLING   6
336 
337 /*
338  * Struct used to manage memory for a virtual processor area
339  * registered by a PAPR guest.  There are three types of area
340  * that a guest can register.
341  */
342 struct kvmppc_vpa {
343         unsigned long gpa;      /* Current guest phys addr */
344         void *pinned_addr;      /* Address in kernel linear mapping */
345         void *pinned_end;       /* End of region */
346         unsigned long next_gpa; /* Guest phys addr for update */
347         unsigned long len;      /* Number of bytes required */
348         u8 update_pending;      /* 1 => update pinned_addr from next_gpa */
349         bool dirty;             /* true => area has been modified by kernel */
350 };
351 
352 struct kvmppc_pte {
353         ulong eaddr;
354         u64 vpage;
355         ulong raddr;
356         bool may_read           : 1;
357         bool may_write          : 1;
358         bool may_execute        : 1;
359         unsigned long wimg;
360         u8 page_size;           /* MMU_PAGE_xxx */
361 };
362 
363 struct kvmppc_mmu {
364         /* book3s_64 only */
365         void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
366         u64  (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
367         u64  (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
368         void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
369         void (*slbia)(struct kvm_vcpu *vcpu);
370         /* book3s */
371         void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
372         u32  (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
373         int  (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,
374                       struct kvmppc_pte *pte, bool data, bool iswrite);
375         void (*reset_msr)(struct kvm_vcpu *vcpu);
376         void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
377         int  (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
378         u64  (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
379         bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
380 };
381 
382 struct kvmppc_slb {
383         u64 esid;
384         u64 vsid;
385         u64 orige;
386         u64 origv;
387         bool valid      : 1;
388         bool Ks         : 1;
389         bool Kp         : 1;
390         bool nx         : 1;
391         bool large      : 1;    /* PTEs are 16MB */
392         bool tb         : 1;    /* 1TB segment */
393         bool class      : 1;
394         u8 base_page_size;      /* MMU_PAGE_xxx */
395 };
396 
397 /* Struct used to accumulate timing information in HV real mode code */
398 struct kvmhv_tb_accumulator {
399         u64     seqcount;       /* used to synchronize access, also count * 2 */
400         u64     tb_total;       /* total time in timebase ticks */
401         u64     tb_min;         /* min time */
402         u64     tb_max;         /* max time */
403 };
404 
405 #ifdef CONFIG_PPC_BOOK3S_64
406 struct kvmppc_irq_map {
407         u32     r_hwirq;
408         u32     v_hwirq;
409         struct irq_desc *desc;
410 };
411 
412 #define KVMPPC_PIRQ_MAPPED      1024
413 struct kvmppc_passthru_irqmap {
414         int n_mapped;
415         struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED];
416 };
417 #endif
418 
419 # ifdef CONFIG_PPC_FSL_BOOK3E
420 #define KVMPPC_BOOKE_IAC_NUM    2
421 #define KVMPPC_BOOKE_DAC_NUM    2
422 # else
423 #define KVMPPC_BOOKE_IAC_NUM    4
424 #define KVMPPC_BOOKE_DAC_NUM    2
425 # endif
426 #define KVMPPC_BOOKE_MAX_IAC    4
427 #define KVMPPC_BOOKE_MAX_DAC    2
428 
429 /* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
430 #define KVMPPC_EPR_NONE         0 /* EPR not supported */
431 #define KVMPPC_EPR_USER         1 /* exit to userspace to fill EPR */
432 #define KVMPPC_EPR_KERNEL       2 /* in-kernel irqchip */
433 
434 #define KVMPPC_IRQ_DEFAULT      0
435 #define KVMPPC_IRQ_MPIC         1
436 #define KVMPPC_IRQ_XICS         2 /* Includes a XIVE option */
437 
438 #define MMIO_HPTE_CACHE_SIZE    4
439 
440 struct mmio_hpte_cache_entry {
441         unsigned long hpte_v;
442         unsigned long hpte_r;
443         unsigned long rpte;
444         unsigned long pte_index;
445         unsigned long eaddr;
446         unsigned long slb_v;
447         long mmio_update;
448         unsigned int slb_base_pshift;
449 };
450 
451 struct mmio_hpte_cache {
452         struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE];
453         unsigned int index;
454 };
455 
456 #define KVMPPC_VSX_COPY_NONE            0
457 #define KVMPPC_VSX_COPY_WORD            1
458 #define KVMPPC_VSX_COPY_DWORD           2
459 #define KVMPPC_VSX_COPY_DWORD_LOAD_DUMP 3
460 
461 struct openpic;
462 
463 /* W0 and W1 of a XIVE thread management context */
464 union xive_tma_w01 {
465         struct {
466                 u8      nsr;
467                 u8      cppr;
468                 u8      ipb;
469                 u8      lsmfb;
470                 u8      ack;
471                 u8      inc;
472                 u8      age;
473                 u8      pipr;
474         };
475         __be64 w01;
476 };
477 
478 struct kvm_vcpu_arch {
479         ulong host_stack;
480         u32 host_pid;
481 #ifdef CONFIG_PPC_BOOK3S
482         struct kvmppc_slb slb[64];
483         int slb_max;            /* 1 + index of last valid entry in slb[] */
484         int slb_nr;             /* total number of entries in SLB */
485         struct kvmppc_mmu mmu;
486         struct kvmppc_vcpu_book3s *book3s;
487 #endif
488 #ifdef CONFIG_PPC_BOOK3S_32
489         struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
490 #endif
491 
492         ulong gpr[32];
493 
494         struct thread_fp_state fp;
495 
496 #ifdef CONFIG_SPE
497         ulong evr[32];
498         ulong spefscr;
499         ulong host_spefscr;
500         u64 acc;
501 #endif
502 #ifdef CONFIG_ALTIVEC
503         struct thread_vr_state vr;
504 #endif
505 
506 #ifdef CONFIG_KVM_BOOKE_HV
507         u32 host_mas4;
508         u32 host_mas6;
509         u32 shadow_epcr;
510         u32 shadow_msrp;
511         u32 eplc;
512         u32 epsc;
513         u32 oldpir;
514 #endif
515 
516 #if defined(CONFIG_BOOKE)
517 #if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
518         u32 epcr;
519 #endif
520 #endif
521 
522 #ifdef CONFIG_PPC_BOOK3S
523         /* For Gekko paired singles */
524         u32 qpr[32];
525 #endif
526 
527         ulong pc;
528         ulong ctr;
529         ulong lr;
530 #ifdef CONFIG_PPC_BOOK3S
531         ulong tar;
532 #endif
533 
534         ulong xer;
535         u32 cr;
536 
537 #ifdef CONFIG_PPC_BOOK3S
538         ulong hflags;
539         ulong guest_owned_ext;
540         ulong purr;
541         ulong spurr;
542         ulong ic;
543         ulong dscr;
544         ulong amr;
545         ulong uamor;
546         ulong iamr;
547         u32 ctrl;
548         u32 dabrx;
549         ulong dabr;
550         ulong dawr;
551         ulong dawrx;
552         ulong ciabr;
553         ulong cfar;
554         ulong ppr;
555         u32 pspb;
556         ulong fscr;
557         ulong shadow_fscr;
558         ulong ebbhr;
559         ulong ebbrr;
560         ulong bescr;
561         ulong csigr;
562         ulong tacr;
563         ulong tcscr;
564         ulong acop;
565         ulong wort;
566         ulong tid;
567         ulong psscr;
568         ulong hfscr;
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         ulong 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         u8 doorbell_request;
714         u32 last_inst;
715 
716         struct swait_queue_head *wqp;
717         struct kvmppc_vcore *vcore;
718         int ret;
719         int trap;
720         int state;
721         int ptid;
722         int thread_cpu;
723         int prev_cpu;
724         bool timer_running;
725         wait_queue_head_t cpu_run;
726         struct machine_check_event mce_evt; /* Valid if trap == 0x200 */
727 
728         struct kvm_vcpu_arch_shared *shared;
729 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
730         bool shared_big_endian;
731 #endif
732         unsigned long magic_page_pa; /* phys addr to map the magic page to */
733         unsigned long magic_page_ea; /* effect. addr to map the magic page to */
734         bool disable_kernel_nx;
735 
736         int irq_type;           /* one of KVM_IRQ_* */
737         int irq_cpu_id;
738         struct openpic *mpic;   /* KVM_IRQ_MPIC */
739 #ifdef CONFIG_KVM_XICS
740         struct kvmppc_icp *icp; /* XICS presentation controller */
741         struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */
742         __be32 xive_cam_word;    /* Cooked W2 in proper endian with valid bit */
743         u32 xive_pushed;         /* Is the VP pushed on the physical CPU ? */
744         union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */
745 #endif
746 
747 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
748         struct kvm_vcpu_arch_shared shregs;
749 
750         struct mmio_hpte_cache mmio_cache;
751         unsigned long pgfault_addr;
752         long pgfault_index;
753         unsigned long pgfault_hpte[2];
754         struct mmio_hpte_cache_entry *pgfault_cache;
755 
756         struct task_struct *run_task;
757         struct kvm_run *kvm_run;
758 
759         spinlock_t vpa_update_lock;
760         struct kvmppc_vpa vpa;
761         struct kvmppc_vpa dtl;
762         struct dtl_entry *dtl_ptr;
763         unsigned long dtl_index;
764         u64 stolen_logged;
765         struct kvmppc_vpa slb_shadow;
766 
767         spinlock_t tbacct_lock;
768         u64 busy_stolen;
769         u64 busy_preempt;
770 
771         u32 emul_inst;
772 #endif
773 
774 #ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
775         struct kvmhv_tb_accumulator *cur_activity;      /* What we're timing */
776         u64     cur_tb_start;                   /* when it started */
777         struct kvmhv_tb_accumulator rm_entry;   /* real-mode entry code */
778         struct kvmhv_tb_accumulator rm_intr;    /* real-mode intr handling */
779         struct kvmhv_tb_accumulator rm_exit;    /* real-mode exit code */
780         struct kvmhv_tb_accumulator guest_time; /* guest execution */
781         struct kvmhv_tb_accumulator cede_time;  /* time napping inside guest */
782 
783         struct dentry *debugfs_dir;
784         struct dentry *debugfs_timings;
785 #endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
786 };
787 
788 #define VCPU_FPR(vcpu, i)       (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
789 #define VCPU_VSX_FPR(vcpu, i, j)        ((vcpu)->arch.fp.fpr[i][j])
790 #define VCPU_VSX_VR(vcpu, i)            ((vcpu)->arch.vr.vr[i])
791 
792 /* Values for vcpu->arch.state */
793 #define KVMPPC_VCPU_NOTREADY            0
794 #define KVMPPC_VCPU_RUNNABLE            1
795 #define KVMPPC_VCPU_BUSY_IN_HOST        2
796 
797 /* Values for vcpu->arch.io_gpr */
798 #define KVM_MMIO_REG_MASK       0x001f
799 #define KVM_MMIO_REG_EXT_MASK   0xffe0
800 #define KVM_MMIO_REG_GPR        0x0000
801 #define KVM_MMIO_REG_FPR        0x0020
802 #define KVM_MMIO_REG_QPR        0x0040
803 #define KVM_MMIO_REG_FQPR       0x0060
804 #define KVM_MMIO_REG_VSX        0x0080
805 
806 #define __KVM_HAVE_ARCH_WQP
807 #define __KVM_HAVE_CREATE_DEVICE
808 
809 static inline void kvm_arch_hardware_disable(void) {}
810 static inline void kvm_arch_hardware_unsetup(void) {}
811 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
812 static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {}
813 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
814 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
815 static inline void kvm_arch_exit(void) {}
816 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
817 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
818 static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
819 
820 #endif /* __POWERPC_KVM_HOST_H__ */
821 

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