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

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Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  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 void 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 #endif
797 
798 #ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
799         struct kvmhv_tb_accumulator *cur_activity;      /* What we're timing */
800         u64     cur_tb_start;                   /* when it started */
801         struct kvmhv_tb_accumulator rm_entry;   /* real-mode entry code */
802         struct kvmhv_tb_accumulator rm_intr;    /* real-mode intr handling */
803         struct kvmhv_tb_accumulator rm_exit;    /* real-mode exit code */
804         struct kvmhv_tb_accumulator guest_time; /* guest execution */
805         struct kvmhv_tb_accumulator cede_time;  /* time napping inside guest */
806 
807         struct dentry *debugfs_dir;
808         struct dentry *debugfs_timings;
809 #endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
810 };
811 
812 #define VCPU_FPR(vcpu, i)       (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
813 #define VCPU_VSX_FPR(vcpu, i, j)        ((vcpu)->arch.fp.fpr[i][j])
814 #define VCPU_VSX_VR(vcpu, i)            ((vcpu)->arch.vr.vr[i])
815 
816 /* Values for vcpu->arch.state */
817 #define KVMPPC_VCPU_NOTREADY            0
818 #define KVMPPC_VCPU_RUNNABLE            1
819 #define KVMPPC_VCPU_BUSY_IN_HOST        2
820 
821 /* Values for vcpu->arch.io_gpr */
822 #define KVM_MMIO_REG_MASK       0x003f
823 #define KVM_MMIO_REG_EXT_MASK   0xffc0
824 #define KVM_MMIO_REG_GPR        0x0000
825 #define KVM_MMIO_REG_FPR        0x0040
826 #define KVM_MMIO_REG_QPR        0x0080
827 #define KVM_MMIO_REG_FQPR       0x00c0
828 #define KVM_MMIO_REG_VSX        0x0100
829 #define KVM_MMIO_REG_VMX        0x0180
830 
831 #define __KVM_HAVE_ARCH_WQP
832 #define __KVM_HAVE_CREATE_DEVICE
833 
834 static inline void kvm_arch_hardware_disable(void) {}
835 static inline void kvm_arch_hardware_unsetup(void) {}
836 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
837 static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {}
838 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
839 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
840 static inline void kvm_arch_exit(void) {}
841 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
842 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
843 static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
844 
845 #endif /* __POWERPC_KVM_HOST_H__ */
846 

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