summaryrefslogtreecommitdiff
path: root/arch/powerpc/include/asm/kvm_host.h
blob: 906bcbdfd2a1be56771d30d8e19845e102e36c94 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License, version 2, as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * Copyright IBM Corp. 2007
 *
 * Authors: Hollis Blanchard <hollisb@us.ibm.com>
 */

#ifndef __POWERPC_KVM_HOST_H__
#define __POWERPC_KVM_HOST_H__

#include <linux/mutex.h>
#include <linux/hrtimer.h>
#include <linux/interrupt.h>
#include <linux/types.h>
#include <linux/kvm_types.h>
#include <linux/threads.h>
#include <linux/spinlock.h>
#include <linux/kvm_para.h>
#include <linux/list.h>
#include <linux/atomic.h>
#include <asm/kvm_asm.h>
#include <asm/processor.h>
#include <asm/page.h>
#include <asm/cacheflush.h>
#include <asm/hvcall.h>
#include <asm/mce.h>

#define KVM_MAX_VCPUS		NR_CPUS
#define KVM_MAX_VCORES		NR_CPUS
#define KVM_USER_MEM_SLOTS	512

#include <asm/cputhreads.h>

#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
#include <asm/kvm_book3s_asm.h>		/* for MAX_SMT_THREADS */
#define KVM_MAX_VCPU_ID		(MAX_SMT_THREADS * KVM_MAX_VCORES)

#else
#define KVM_MAX_VCPU_ID		KVM_MAX_VCPUS
#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */

#define __KVM_HAVE_ARCH_INTC_INITIALIZED

#define KVM_HALT_POLL_NS_DEFAULT 10000	/* 10 us */

/* These values are internal and can be increased later */
#define KVM_NR_IRQCHIPS          1
#define KVM_IRQCHIP_NUM_PINS     256

/* PPC-specific vcpu->requests bit members */
#define KVM_REQ_WATCHDOG	KVM_ARCH_REQ(0)
#define KVM_REQ_EPR_EXIT	KVM_ARCH_REQ(1)

#include <linux/mmu_notifier.h>

#define KVM_ARCH_WANT_MMU_NOTIFIER

extern int kvm_unmap_hva_range(struct kvm *kvm,
			       unsigned long start, unsigned long end);
extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
extern void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);

#define HPTEG_CACHE_NUM			(1 << 15)
#define HPTEG_HASH_BITS_PTE		13
#define HPTEG_HASH_BITS_PTE_LONG	12
#define HPTEG_HASH_BITS_VPTE		13
#define HPTEG_HASH_BITS_VPTE_LONG	5
#define HPTEG_HASH_BITS_VPTE_64K	11
#define HPTEG_HASH_NUM_PTE		(1 << HPTEG_HASH_BITS_PTE)
#define HPTEG_HASH_NUM_PTE_LONG		(1 << HPTEG_HASH_BITS_PTE_LONG)
#define HPTEG_HASH_NUM_VPTE		(1 << HPTEG_HASH_BITS_VPTE)
#define HPTEG_HASH_NUM_VPTE_LONG	(1 << HPTEG_HASH_BITS_VPTE_LONG)
#define HPTEG_HASH_NUM_VPTE_64K		(1 << HPTEG_HASH_BITS_VPTE_64K)

/* Physical Address Mask - allowed range of real mode RAM access */
#define KVM_PAM			0x0fffffffffffffffULL

struct lppaca;
struct slb_shadow;
struct dtl_entry;

struct kvmppc_vcpu_book3s;
struct kvmppc_book3s_shadow_vcpu;

struct kvm_vm_stat {
	ulong remote_tlb_flush;
};

struct kvm_vcpu_stat {
	u64 sum_exits;
	u64 mmio_exits;
	u64 signal_exits;
	u64 light_exits;
	/* Account for special types of light exits: */
	u64 itlb_real_miss_exits;
	u64 itlb_virt_miss_exits;
	u64 dtlb_real_miss_exits;
	u64 dtlb_virt_miss_exits;
	u64 syscall_exits;
	u64 isi_exits;
	u64 dsi_exits;
	u64 emulated_inst_exits;
	u64 dec_exits;
	u64 ext_intr_exits;
	u64 halt_poll_success_ns;
	u64 halt_poll_fail_ns;
	u64 halt_wait_ns;
	u64 halt_successful_poll;
	u64 halt_attempted_poll;
	u64 halt_successful_wait;
	u64 halt_poll_invalid;
	u64 halt_wakeup;
	u64 dbell_exits;
	u64 gdbell_exits;
	u64 ld;
	u64 st;
#ifdef CONFIG_PPC_BOOK3S
	u64 pf_storage;
	u64 pf_instruc;
	u64 sp_storage;
	u64 sp_instruc;
	u64 queue_intr;
	u64 ld_slow;
	u64 st_slow;
#endif
	u64 pthru_all;
	u64 pthru_host;
	u64 pthru_bad_aff;
};

enum kvm_exit_types {
	MMIO_EXITS,
	SIGNAL_EXITS,
	ITLB_REAL_MISS_EXITS,
	ITLB_VIRT_MISS_EXITS,
	DTLB_REAL_MISS_EXITS,
	DTLB_VIRT_MISS_EXITS,
	SYSCALL_EXITS,
	ISI_EXITS,
	DSI_EXITS,
	EMULATED_INST_EXITS,
	EMULATED_MTMSRWE_EXITS,
	EMULATED_WRTEE_EXITS,
	EMULATED_MTSPR_EXITS,
	EMULATED_MFSPR_EXITS,
	EMULATED_MTMSR_EXITS,
	EMULATED_MFMSR_EXITS,
	EMULATED_TLBSX_EXITS,
	EMULATED_TLBWE_EXITS,
	EMULATED_RFI_EXITS,
	EMULATED_RFCI_EXITS,
	EMULATED_RFDI_EXITS,
	DEC_EXITS,
	EXT_INTR_EXITS,
	HALT_WAKEUP,
	USR_PR_INST,
	FP_UNAVAIL,
	DEBUG_EXITS,
	TIMEINGUEST,
	DBELL_EXITS,
	GDBELL_EXITS,
	__NUMBER_OF_KVM_EXIT_TYPES
};

/* allow access to big endian 32bit upper/lower parts and 64bit var */
struct kvmppc_exit_timing {
	union {
		u64 tv64;
		struct {
			u32 tbu, tbl;
		} tv32;
	};
};

struct kvmppc_pginfo {
	unsigned long pfn;
	atomic_t refcnt;
};

struct kvmppc_spapr_tce_iommu_table {
	struct rcu_head rcu;
	struct list_head next;
	struct iommu_table *tbl;
	struct kref kref;
};

struct kvmppc_spapr_tce_table {
	struct list_head list;
	struct kvm *kvm;
	u64 liobn;
	struct rcu_head rcu;
	u32 page_shift;
	u64 offset;		/* in pages */
	u64 size;		/* window size in pages */
	struct list_head iommu_tables;
	struct page *pages[0];
};

/* XICS components, defined in book3s_xics.c */
struct kvmppc_xics;
struct kvmppc_icp;
extern struct kvm_device_ops kvm_xics_ops;

/* XIVE components, defined in book3s_xive.c */
struct kvmppc_xive;
struct kvmppc_xive_vcpu;
extern struct kvm_device_ops kvm_xive_ops;

struct kvmppc_passthru_irqmap;

/*
 * The reverse mapping array has one entry for each HPTE,
 * which stores the guest's view of the second word of the HPTE
 * (including the guest physical address of the mapping),
 * plus forward and backward pointers in a doubly-linked ring
 * of HPTEs that map the same host page.  The pointers in this
 * ring are 32-bit HPTE indexes, to save space.
 */
struct revmap_entry {
	unsigned long guest_rpte;
	unsigned int forw, back;
};

/*
 * We use the top bit of each memslot->arch.rmap entry as a lock bit,
 * and bit 32 as a present flag.  The bottom 32 bits are the
 * index in the guest HPT of a HPTE that points to the page.
 */
#define KVMPPC_RMAP_LOCK_BIT	63
#define KVMPPC_RMAP_RC_SHIFT	32
#define KVMPPC_RMAP_REFERENCED	(HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)
#define KVMPPC_RMAP_PRESENT	0x100000000ul
#define KVMPPC_RMAP_INDEX	0xfffffffful

struct kvm_arch_memory_slot {
#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
	unsigned long *rmap;
#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
};

struct kvm_hpt_info {
	/* Host virtual (linear mapping) address of guest HPT */
	unsigned long virt;
	/* Array of reverse mapping entries for each guest HPTE */
	struct revmap_entry *rev;
	/* Guest HPT size is 2**(order) bytes */
	u32 order;
	/* 1 if HPT allocated with CMA, 0 otherwise */
	int cma;
};

struct kvm_resize_hpt;

struct kvm_arch {
	unsigned int lpid;
	unsigned int smt_mode;		/* # vcpus per virtual core */
	unsigned int emul_smt_mode;	/* emualted SMT mode, on P9 */
#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
	unsigned int tlb_sets;
	struct kvm_hpt_info hpt;
	atomic64_t mmio_update;
	unsigned int host_lpid;
	unsigned long host_lpcr;
	unsigned long sdr1;
	unsigned long host_sdr1;
	unsigned long lpcr;
	unsigned long vrma_slb_v;
	int mmu_ready;
	atomic_t vcpus_running;
	u32 online_vcores;
	atomic_t hpte_mod_interest;
	cpumask_t need_tlb_flush;
	cpumask_t cpu_in_guest;
	u8 radix;
	u8 fwnmi_enabled;
	bool threads_indep;
	pgd_t *pgtable;
	u64 process_table;
	struct dentry *debugfs_dir;
	struct dentry *htab_dentry;
	struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */
#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
	struct mutex hpt_mutex;
#endif
#ifdef CONFIG_PPC_BOOK3S_64
	struct list_head spapr_tce_tables;
	struct list_head rtas_tokens;
	DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
#endif
#ifdef CONFIG_KVM_MPIC
	struct openpic *mpic;
#endif
#ifdef CONFIG_KVM_XICS
	struct kvmppc_xics *xics;
	struct kvmppc_xive *xive;
	struct kvmppc_passthru_irqmap *pimap;
#endif
	struct kvmppc_ops *kvm_ops;
#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
	/* This array can grow quite large, keep it at the end */
	struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
#endif
};

#define VCORE_ENTRY_MAP(vc)	((vc)->entry_exit_map & 0xff)
#define VCORE_EXIT_MAP(vc)	((vc)->entry_exit_map >> 8)
#define VCORE_IS_EXITING(vc)	(VCORE_EXIT_MAP(vc) != 0)

/* This bit is used when a vcore exit is triggered from outside the vcore */
#define VCORE_EXIT_REQ		0x10000

/*
 * Values for vcore_state.
 * Note that these are arranged such that lower values
 * (< VCORE_SLEEPING) don't require stolen time accounting
 * on load/unload, and higher values do.
 */
#define VCORE_INACTIVE	0
#define VCORE_PREEMPT	1
#define VCORE_PIGGYBACK	2
#define VCORE_SLEEPING	3
#define VCORE_RUNNING	4
#define VCORE_EXITING	5
#define VCORE_POLLING	6

/*
 * Struct used to manage memory for a virtual processor area
 * registered by a PAPR guest.  There are three types of area
 * that a guest can register.
 */
struct kvmppc_vpa {
	unsigned long gpa;	/* Current guest phys addr */
	void *pinned_addr;	/* Address in kernel linear mapping */
	void *pinned_end;	/* End of region */
	unsigned long next_gpa;	/* Guest phys addr for update */
	unsigned long len;	/* Number of bytes required */
	u8 update_pending;	/* 1 => update pinned_addr from next_gpa */
	bool dirty;		/* true => area has been modified by kernel */
};

struct kvmppc_pte {
	ulong eaddr;
	u64 vpage;
	ulong raddr;
	bool may_read		: 1;
	bool may_write		: 1;
	bool may_execute	: 1;
	unsigned long wimg;
	u8 page_size;		/* MMU_PAGE_xxx */
};

struct kvmppc_mmu {
	/* book3s_64 only */
	void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
	u64  (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
	u64  (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
	void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
	void (*slbia)(struct kvm_vcpu *vcpu);
	/* book3s */
	void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
	u32  (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
	int  (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,
		      struct kvmppc_pte *pte, bool data, bool iswrite);
	void (*reset_msr)(struct kvm_vcpu *vcpu);
	void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
	int  (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
	u64  (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
	bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
};

struct kvmppc_slb {
	u64 esid;
	u64 vsid;
	u64 orige;
	u64 origv;
	bool valid	: 1;
	bool Ks		: 1;
	bool Kp		: 1;
	bool nx		: 1;
	bool large	: 1;	/* PTEs are 16MB */
	bool tb		: 1;	/* 1TB segment */
	bool class	: 1;
	u8 base_page_size;	/* MMU_PAGE_xxx */
};

/* Struct used to accumulate timing information in HV real mode code */
struct kvmhv_tb_accumulator {
	u64	seqcount;	/* used to synchronize access, also count * 2 */
	u64	tb_total;	/* total time in timebase ticks */
	u64	tb_min;		/* min time */
	u64	tb_max;		/* max time */
};

#ifdef CONFIG_PPC_BOOK3S_64
struct kvmppc_irq_map {
	u32	r_hwirq;
	u32	v_hwirq;
	struct irq_desc *desc;
};

#define	KVMPPC_PIRQ_MAPPED	1024
struct kvmppc_passthru_irqmap {
	int n_mapped;
	struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED];
};
#endif

# ifdef CONFIG_PPC_FSL_BOOK3E
#define KVMPPC_BOOKE_IAC_NUM	2
#define KVMPPC_BOOKE_DAC_NUM	2
# else
#define KVMPPC_BOOKE_IAC_NUM	4
#define KVMPPC_BOOKE_DAC_NUM	2
# endif
#define KVMPPC_BOOKE_MAX_IAC	4
#define KVMPPC_BOOKE_MAX_DAC	2

/* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
#define KVMPPC_EPR_NONE		0 /* EPR not supported */
#define KVMPPC_EPR_USER		1 /* exit to userspace to fill EPR */
#define KVMPPC_EPR_KERNEL	2 /* in-kernel irqchip */

#define KVMPPC_IRQ_DEFAULT	0
#define KVMPPC_IRQ_MPIC		1
#define KVMPPC_IRQ_XICS		2 /* Includes a XIVE option */

#define MMIO_HPTE_CACHE_SIZE	4

struct mmio_hpte_cache_entry {
	unsigned long hpte_v;
	unsigned long hpte_r;
	unsigned long rpte;
	unsigned long pte_index;
	unsigned long eaddr;
	unsigned long slb_v;
	long mmio_update;
	unsigned int slb_base_pshift;
};

struct mmio_hpte_cache {
	struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE];
	unsigned int index;
};

#define KVMPPC_VSX_COPY_NONE		0
#define KVMPPC_VSX_COPY_WORD		1
#define KVMPPC_VSX_COPY_DWORD		2
#define KVMPPC_VSX_COPY_DWORD_LOAD_DUMP	3
#define KVMPPC_VSX_COPY_WORD_LOAD_DUMP	4

#define KVMPPC_VMX_COPY_BYTE		8
#define KVMPPC_VMX_COPY_HWORD		9
#define KVMPPC_VMX_COPY_WORD		10
#define KVMPPC_VMX_COPY_DWORD		11

struct openpic;

/* W0 and W1 of a XIVE thread management context */
union xive_tma_w01 {
	struct {
		u8	nsr;
		u8	cppr;
		u8	ipb;
		u8	lsmfb;
		u8	ack;
		u8	inc;
		u8	age;
		u8	pipr;
	};
	__be64 w01;
};

struct kvm_vcpu_arch {
	ulong host_stack;
	u32 host_pid;
#ifdef CONFIG_PPC_BOOK3S
	struct kvmppc_slb slb[64];
	int slb_max;		/* 1 + index of last valid entry in slb[] */
	int slb_nr;		/* total number of entries in SLB */
	struct kvmppc_mmu mmu;
	struct kvmppc_vcpu_book3s *book3s;
#endif
#ifdef CONFIG_PPC_BOOK3S_32
	struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
#endif

	struct pt_regs regs;

	struct thread_fp_state fp;

#ifdef CONFIG_SPE
	ulong evr[32];
	ulong spefscr;
	ulong host_spefscr;
	u64 acc;
#endif
#ifdef CONFIG_ALTIVEC
	struct thread_vr_state vr;
#endif

#ifdef CONFIG_KVM_BOOKE_HV
	u32 host_mas4;
	u32 host_mas6;
	u32 shadow_epcr;
	u32 shadow_msrp;
	u32 eplc;
	u32 epsc;
	u32 oldpir;
#endif

#if defined(CONFIG_BOOKE)
#if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
	u32 epcr;
#endif
#endif

#ifdef CONFIG_PPC_BOOK3S
	/* For Gekko paired singles */
	u32 qpr[32];
#endif

#ifdef CONFIG_PPC_BOOK3S
	ulong tar;
#endif

	u32 cr;

#ifdef CONFIG_PPC_BOOK3S
	ulong hflags;
	ulong guest_owned_ext;
	ulong purr;
	ulong spurr;
	ulong ic;
	ulong dscr;
	ulong amr;
	ulong uamor;
	ulong iamr;
	u32 ctrl;
	u32 dabrx;
	ulong dabr;
	ulong dawr;
	ulong dawrx;
	ulong ciabr;
	ulong cfar;
	ulong ppr;
	u32 pspb;
	ulong fscr;
	ulong shadow_fscr;
	ulong ebbhr;
	ulong ebbrr;
	ulong bescr;
	ulong csigr;
	ulong tacr;
	ulong tcscr;
	ulong acop;
	ulong wort;
	ulong tid;
	ulong psscr;
	ulong hfscr;
	ulong shadow_srr1;
#endif
	u32 vrsave; /* also USPRG0 */
	u32 mmucr;
	/* shadow_msr is unused for BookE HV */
	ulong shadow_msr;
	ulong csrr0;
	ulong csrr1;
	ulong dsrr0;
	ulong dsrr1;
	ulong mcsrr0;
	ulong mcsrr1;
	ulong mcsr;
	ulong dec;
#ifdef CONFIG_BOOKE
	u32 decar;
#endif
	/* Time base value when we entered the guest */
	u64 entry_tb;
	u64 entry_vtb;
	u64 entry_ic;
	u32 tcr;
	ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
	u32 ivor[64];
	ulong ivpr;
	u32 pvr;

	u32 shadow_pid;
	u32 shadow_pid1;
	u32 pid;
	u32 swap_pid;

	u32 ccr0;
	u32 ccr1;
	u32 dbsr;

	u64 mmcr[5];
	u32 pmc[8];
	u32 spmc[2];
	u64 siar;
	u64 sdar;
	u64 sier;
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
	u64 tfhar;
	u64 texasr;
	u64 tfiar;
	u64 orig_texasr;

	u32 cr_tm;
	u64 xer_tm;
	u64 lr_tm;
	u64 ctr_tm;
	u64 amr_tm;
	u64 ppr_tm;
	u64 dscr_tm;
	u64 tar_tm;

	ulong gpr_tm[32];

	struct thread_fp_state fp_tm;

	struct thread_vr_state vr_tm;
	u32 vrsave_tm; /* also USPRG0 */
#endif

#ifdef CONFIG_KVM_EXIT_TIMING
	struct mutex exit_timing_lock;
	struct kvmppc_exit_timing timing_exit;
	struct kvmppc_exit_timing timing_last_enter;
	u32 last_exit_type;
	u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
	u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
	u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
	u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
	u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
	u64 timing_last_exit;
	struct dentry *debugfs_exit_timing;
#endif

#ifdef CONFIG_PPC_BOOK3S
	ulong fault_dar;
	u32 fault_dsisr;
	unsigned long intr_msr;
	ulong fault_gpa;	/* guest real address of page fault (POWER9) */
#endif

#ifdef CONFIG_BOOKE
	ulong fault_dear;
	ulong fault_esr;
	ulong queued_dear;
	ulong queued_esr;
	spinlock_t wdt_lock;
	struct timer_list wdt_timer;
	u32 tlbcfg[4];
	u32 tlbps[4];
	u32 mmucfg;
	u32 eptcfg;
	u32 epr;
	u64 sprg9;
	u32 pwrmgtcr0;
	u32 crit_save;
	/* guest debug registers*/
	struct debug_reg dbg_reg;
#endif
	gpa_t paddr_accessed;
	gva_t vaddr_accessed;
	pgd_t *pgdir;

	u16 io_gpr; /* GPR used as IO source/target */
	u8 mmio_host_swabbed;
	u8 mmio_sign_extend;
	/* conversion between single and double precision */
	u8 mmio_sp64_extend;
	/*
	 * Number of simulations for vsx.
	 * If we use 2*8bytes to simulate 1*16bytes,
	 * then the number should be 2 and
	 * mmio_copy_type=KVMPPC_VSX_COPY_DWORD.
	 * If we use 4*4bytes to simulate 1*16bytes,
	 * the number should be 4 and
	 * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD.
	 */
	u8 mmio_vsx_copy_nums;
	u8 mmio_vsx_offset;
	u8 mmio_vmx_copy_nums;
	u8 mmio_vmx_offset;
	u8 mmio_copy_type;
	u8 osi_needed;
	u8 osi_enabled;
	u8 papr_enabled;
	u8 watchdog_enabled;
	u8 sane;
	u8 cpu_type;
	u8 hcall_needed;
	u8 epr_flags; /* KVMPPC_EPR_xxx */
	u8 epr_needed;

	u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */

	struct hrtimer dec_timer;
	u64 dec_jiffies;
	u64 dec_expires;
	unsigned long pending_exceptions;
	u8 ceded;
	u8 prodded;
	u8 doorbell_request;
	u8 irq_pending; /* Used by XIVE to signal pending guest irqs */
	u32 last_inst;

	struct swait_queue_head *wqp;
	struct kvmppc_vcore *vcore;
	int ret;
	int trap;
	int state;
	int ptid;
	int thread_cpu;
	int prev_cpu;
	bool timer_running;
	wait_queue_head_t cpu_run;
	struct machine_check_event mce_evt; /* Valid if trap == 0x200 */

	struct kvm_vcpu_arch_shared *shared;
#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
	bool shared_big_endian;
#endif
	unsigned long magic_page_pa; /* phys addr to map the magic page to */
	unsigned long magic_page_ea; /* effect. addr to map the magic page to */
	bool disable_kernel_nx;

	int irq_type;		/* one of KVM_IRQ_* */
	int irq_cpu_id;
	struct openpic *mpic;	/* KVM_IRQ_MPIC */
#ifdef CONFIG_KVM_XICS
	struct kvmppc_icp *icp; /* XICS presentation controller */
	struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */
	__be32 xive_cam_word;    /* Cooked W2 in proper endian with valid bit */
	u8 xive_pushed;		 /* Is the VP pushed on the physical CPU ? */
	u8 xive_esc_on;		 /* Is the escalation irq enabled ? */
	union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */
	u64 xive_esc_raddr;	 /* Escalation interrupt ESB real addr */
	u64 xive_esc_vaddr;	 /* Escalation interrupt ESB virt addr */
#endif

#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
	struct kvm_vcpu_arch_shared shregs;

	struct mmio_hpte_cache mmio_cache;
	unsigned long pgfault_addr;
	long pgfault_index;
	unsigned long pgfault_hpte[2];
	struct mmio_hpte_cache_entry *pgfault_cache;

	struct task_struct *run_task;
	struct kvm_run *kvm_run;

	spinlock_t vpa_update_lock;
	struct kvmppc_vpa vpa;
	struct kvmppc_vpa dtl;
	struct dtl_entry *dtl_ptr;
	unsigned long dtl_index;
	u64 stolen_logged;
	struct kvmppc_vpa slb_shadow;

	spinlock_t tbacct_lock;
	u64 busy_stolen;
	u64 busy_preempt;

	u32 emul_inst;

	u32 online;
#endif

#ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
	struct kvmhv_tb_accumulator *cur_activity;	/* What we're timing */
	u64	cur_tb_start;			/* when it started */
	struct kvmhv_tb_accumulator rm_entry;	/* real-mode entry code */
	struct kvmhv_tb_accumulator rm_intr;	/* real-mode intr handling */
	struct kvmhv_tb_accumulator rm_exit;	/* real-mode exit code */
	struct kvmhv_tb_accumulator guest_time;	/* guest execution */
	struct kvmhv_tb_accumulator cede_time;	/* time napping inside guest */

	struct dentry *debugfs_dir;
	struct dentry *debugfs_timings;
#endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
};

#define VCPU_FPR(vcpu, i)	(vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
#define VCPU_VSX_FPR(vcpu, i, j)	((vcpu)->arch.fp.fpr[i][j])
#define VCPU_VSX_VR(vcpu, i)		((vcpu)->arch.vr.vr[i])

/* Values for vcpu->arch.state */
#define KVMPPC_VCPU_NOTREADY		0
#define KVMPPC_VCPU_RUNNABLE		1
#define KVMPPC_VCPU_BUSY_IN_HOST	2

/* Values for vcpu->arch.io_gpr */
#define KVM_MMIO_REG_MASK	0x003f
#define KVM_MMIO_REG_EXT_MASK	0xffc0
#define KVM_MMIO_REG_GPR	0x0000
#define KVM_MMIO_REG_FPR	0x0040
#define KVM_MMIO_REG_QPR	0x0080
#define KVM_MMIO_REG_FQPR	0x00c0
#define KVM_MMIO_REG_VSX	0x0100
#define KVM_MMIO_REG_VMX	0x0180

#define __KVM_HAVE_ARCH_WQP
#define __KVM_HAVE_CREATE_DEVICE

static inline void kvm_arch_hardware_disable(void) {}
static inline void kvm_arch_hardware_unsetup(void) {}
static inline void kvm_arch_sync_events(struct kvm *kvm) {}
static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {}
static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
static inline void kvm_arch_exit(void) {}
static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}

#endif /* __POWERPC_KVM_HOST_H__ */