1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  *
4  * Copyright IBM Corp. 2007
5  *
6  * Authors: Hollis Blanchard <hollisb@us.ibm.com>
7  */
8 
9 #ifndef __POWERPC_KVM_HOST_H__
10 #define __POWERPC_KVM_HOST_H__
11 
12 #include <linux/mutex.h>
13 #include <linux/hrtimer.h>
14 #include <linux/interrupt.h>
15 #include <linux/types.h>
16 #include <linux/kvm_types.h>
17 #include <linux/threads.h>
18 #include <linux/spinlock.h>
19 #include <linux/kvm_para.h>
20 #include <linux/list.h>
21 #include <linux/atomic.h>
22 #include <asm/kvm_asm.h>
23 #include <asm/processor.h>
24 #include <asm/page.h>
25 #include <asm/cacheflush.h>
26 #include <asm/hvcall.h>
27 #include <asm/mce.h>
28 
29 #define KVM_MAX_VCPUS		NR_CPUS
30 #define KVM_MAX_VCORES		NR_CPUS
31 
32 #include <asm/cputhreads.h>
33 
34 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
35 #include <asm/kvm_book3s_asm.h>		/* for MAX_SMT_THREADS */
36 #define KVM_MAX_VCPU_ID		(MAX_SMT_THREADS * KVM_MAX_VCORES)
37 #define KVM_MAX_NESTED_GUESTS	KVMPPC_NR_LPIDS
38 
39 #else
40 #define KVM_MAX_VCPU_ID		KVM_MAX_VCPUS
41 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
42 
43 #define __KVM_HAVE_ARCH_INTC_INITIALIZED
44 
45 #define KVM_HALT_POLL_NS_DEFAULT 10000	/* 10 us */
46 
47 /* These values are internal and can be increased later */
48 #define KVM_NR_IRQCHIPS          1
49 #define KVM_IRQCHIP_NUM_PINS     256
50 
51 /* PPC-specific vcpu->requests bit members */
52 #define KVM_REQ_WATCHDOG	KVM_ARCH_REQ(0)
53 #define KVM_REQ_EPR_EXIT	KVM_ARCH_REQ(1)
54 
55 #include <linux/mmu_notifier.h>
56 
57 #define KVM_ARCH_WANT_MMU_NOTIFIER
58 
59 #define HPTEG_CACHE_NUM			(1 << 15)
60 #define HPTEG_HASH_BITS_PTE		13
61 #define HPTEG_HASH_BITS_PTE_LONG	12
62 #define HPTEG_HASH_BITS_VPTE		13
63 #define HPTEG_HASH_BITS_VPTE_LONG	5
64 #define HPTEG_HASH_BITS_VPTE_64K	11
65 #define HPTEG_HASH_NUM_PTE		(1 << HPTEG_HASH_BITS_PTE)
66 #define HPTEG_HASH_NUM_PTE_LONG		(1 << HPTEG_HASH_BITS_PTE_LONG)
67 #define HPTEG_HASH_NUM_VPTE		(1 << HPTEG_HASH_BITS_VPTE)
68 #define HPTEG_HASH_NUM_VPTE_LONG	(1 << HPTEG_HASH_BITS_VPTE_LONG)
69 #define HPTEG_HASH_NUM_VPTE_64K		(1 << HPTEG_HASH_BITS_VPTE_64K)
70 
71 /* Physical Address Mask - allowed range of real mode RAM access */
72 #define KVM_PAM			0x0fffffffffffffffULL
73 
74 struct lppaca;
75 struct slb_shadow;
76 struct dtl_entry;
77 
78 struct kvmppc_vcpu_book3s;
79 struct kvmppc_book3s_shadow_vcpu;
80 struct kvm_nested_guest;
81 
82 struct kvm_vm_stat {
83 	ulong remote_tlb_flush;
84 	ulong num_2M_pages;
85 	ulong num_1G_pages;
86 };
87 
88 struct kvm_vcpu_stat {
89 	u64 sum_exits;
90 	u64 mmio_exits;
91 	u64 signal_exits;
92 	u64 light_exits;
93 	/* Account for special types of light exits: */
94 	u64 itlb_real_miss_exits;
95 	u64 itlb_virt_miss_exits;
96 	u64 dtlb_real_miss_exits;
97 	u64 dtlb_virt_miss_exits;
98 	u64 syscall_exits;
99 	u64 isi_exits;
100 	u64 dsi_exits;
101 	u64 emulated_inst_exits;
102 	u64 dec_exits;
103 	u64 ext_intr_exits;
104 	u64 halt_poll_success_ns;
105 	u64 halt_poll_fail_ns;
106 	u64 halt_wait_ns;
107 	u64 halt_successful_poll;
108 	u64 halt_attempted_poll;
109 	u64 halt_successful_wait;
110 	u64 halt_poll_invalid;
111 	u64 halt_wakeup;
112 	u64 dbell_exits;
113 	u64 gdbell_exits;
114 	u64 ld;
115 	u64 st;
116 #ifdef CONFIG_PPC_BOOK3S
117 	u64 pf_storage;
118 	u64 pf_instruc;
119 	u64 sp_storage;
120 	u64 sp_instruc;
121 	u64 queue_intr;
122 	u64 ld_slow;
123 	u64 st_slow;
124 #endif
125 	u64 pthru_all;
126 	u64 pthru_host;
127 	u64 pthru_bad_aff;
128 };
129 
130 enum kvm_exit_types {
131 	MMIO_EXITS,
132 	SIGNAL_EXITS,
133 	ITLB_REAL_MISS_EXITS,
134 	ITLB_VIRT_MISS_EXITS,
135 	DTLB_REAL_MISS_EXITS,
136 	DTLB_VIRT_MISS_EXITS,
137 	SYSCALL_EXITS,
138 	ISI_EXITS,
139 	DSI_EXITS,
140 	EMULATED_INST_EXITS,
141 	EMULATED_MTMSRWE_EXITS,
142 	EMULATED_WRTEE_EXITS,
143 	EMULATED_MTSPR_EXITS,
144 	EMULATED_MFSPR_EXITS,
145 	EMULATED_MTMSR_EXITS,
146 	EMULATED_MFMSR_EXITS,
147 	EMULATED_TLBSX_EXITS,
148 	EMULATED_TLBWE_EXITS,
149 	EMULATED_RFI_EXITS,
150 	EMULATED_RFCI_EXITS,
151 	EMULATED_RFDI_EXITS,
152 	DEC_EXITS,
153 	EXT_INTR_EXITS,
154 	HALT_WAKEUP,
155 	USR_PR_INST,
156 	FP_UNAVAIL,
157 	DEBUG_EXITS,
158 	TIMEINGUEST,
159 	DBELL_EXITS,
160 	GDBELL_EXITS,
161 	__NUMBER_OF_KVM_EXIT_TYPES
162 };
163 
164 /* allow access to big endian 32bit upper/lower parts and 64bit var */
165 struct kvmppc_exit_timing {
166 	union {
167 		u64 tv64;
168 		struct {
169 			u32 tbu, tbl;
170 		} tv32;
171 	};
172 };
173 
174 struct kvmppc_pginfo {
175 	unsigned long pfn;
176 	atomic_t refcnt;
177 };
178 
179 struct kvmppc_spapr_tce_iommu_table {
180 	struct rcu_head rcu;
181 	struct list_head next;
182 	struct iommu_table *tbl;
183 	struct kref kref;
184 };
185 
186 #define TCES_PER_PAGE	(PAGE_SIZE / sizeof(u64))
187 
188 struct kvmppc_spapr_tce_table {
189 	struct list_head list;
190 	struct kvm *kvm;
191 	u64 liobn;
192 	struct rcu_head rcu;
193 	u32 page_shift;
194 	u64 offset;		/* in pages */
195 	u64 size;		/* window size in pages */
196 	struct list_head iommu_tables;
197 	struct mutex alloc_lock;
198 	struct page *pages[0];
199 };
200 
201 /* XICS components, defined in book3s_xics.c */
202 struct kvmppc_xics;
203 struct kvmppc_icp;
204 extern struct kvm_device_ops kvm_xics_ops;
205 
206 /* XIVE components, defined in book3s_xive.c */
207 struct kvmppc_xive;
208 struct kvmppc_xive_vcpu;
209 extern struct kvm_device_ops kvm_xive_ops;
210 extern struct kvm_device_ops kvm_xive_native_ops;
211 
212 struct kvmppc_passthru_irqmap;
213 
214 /*
215  * The reverse mapping array has one entry for each HPTE,
216  * which stores the guest's view of the second word of the HPTE
217  * (including the guest physical address of the mapping),
218  * plus forward and backward pointers in a doubly-linked ring
219  * of HPTEs that map the same host page.  The pointers in this
220  * ring are 32-bit HPTE indexes, to save space.
221  */
222 struct revmap_entry {
223 	unsigned long guest_rpte;
224 	unsigned int forw, back;
225 };
226 
227 /*
228  * The rmap array of size number of guest pages is allocated for each memslot.
229  * This array is used to store usage specific information about the guest page.
230  * Below are the encodings of the various possible usage types.
231  */
232 /* Free bits which can be used to define a new usage */
233 #define KVMPPC_RMAP_TYPE_MASK	0xff00000000000000
234 #define KVMPPC_RMAP_NESTED	0xc000000000000000	/* Nested rmap array */
235 #define KVMPPC_RMAP_HPT		0x0100000000000000	/* HPT guest */
236 
237 /*
238  * rmap usage definition for a hash page table (hpt) guest:
239  * 0x0000080000000000	Lock bit
240  * 0x0000018000000000	RC bits
241  * 0x0000000100000000	Present bit
242  * 0x00000000ffffffff	HPT index bits
243  * The bottom 32 bits are the index in the guest HPT of a HPTE that points to
244  * the page.
245  */
246 #define KVMPPC_RMAP_LOCK_BIT	43
247 #define KVMPPC_RMAP_RC_SHIFT	32
248 #define KVMPPC_RMAP_REFERENCED	(HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)
249 #define KVMPPC_RMAP_PRESENT	0x100000000ul
250 #define KVMPPC_RMAP_INDEX	0xfffffffful
251 
252 struct kvm_arch_memory_slot {
253 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
254 	unsigned long *rmap;
255 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
256 };
257 
258 struct kvm_hpt_info {
259 	/* Host virtual (linear mapping) address of guest HPT */
260 	unsigned long virt;
261 	/* Array of reverse mapping entries for each guest HPTE */
262 	struct revmap_entry *rev;
263 	/* Guest HPT size is 2**(order) bytes */
264 	u32 order;
265 	/* 1 if HPT allocated with CMA, 0 otherwise */
266 	int cma;
267 };
268 
269 struct kvm_resize_hpt;
270 
271 /* Flag values for kvm_arch.secure_guest */
272 #define KVMPPC_SECURE_INIT_START 0x1 /* H_SVM_INIT_START has been called */
273 #define KVMPPC_SECURE_INIT_DONE  0x2 /* H_SVM_INIT_DONE completed */
274 #define KVMPPC_SECURE_INIT_ABORT 0x4 /* H_SVM_INIT_ABORT issued */
275 
276 struct kvm_arch {
277 	unsigned int lpid;
278 	unsigned int smt_mode;		/* # vcpus per virtual core */
279 	unsigned int emul_smt_mode;	/* emualted SMT mode, on P9 */
280 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
281 	unsigned int tlb_sets;
282 	struct kvm_hpt_info hpt;
283 	atomic64_t mmio_update;
284 	unsigned int host_lpid;
285 	unsigned long host_lpcr;
286 	unsigned long sdr1;
287 	unsigned long host_sdr1;
288 	unsigned long lpcr;
289 	unsigned long vrma_slb_v;
290 	int mmu_ready;
291 	atomic_t vcpus_running;
292 	u32 online_vcores;
293 	atomic_t hpte_mod_interest;
294 	cpumask_t need_tlb_flush;
295 	cpumask_t cpu_in_guest;
296 	u8 radix;
297 	u8 fwnmi_enabled;
298 	u8 secure_guest;
299 	u8 svm_enabled;
300 	bool threads_indep;
301 	bool nested_enable;
302 	bool dawr1_enabled;
303 	pgd_t *pgtable;
304 	u64 process_table;
305 	struct dentry *debugfs_dir;
306 	struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */
307 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
308 #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
309 	struct mutex hpt_mutex;
310 #endif
311 #ifdef CONFIG_PPC_BOOK3S_64
312 	struct list_head spapr_tce_tables;
313 	struct list_head rtas_tokens;
314 	struct mutex rtas_token_lock;
315 	DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
316 #endif
317 #ifdef CONFIG_KVM_MPIC
318 	struct openpic *mpic;
319 #endif
320 #ifdef CONFIG_KVM_XICS
321 	struct kvmppc_xics *xics;
322 	struct kvmppc_xics *xics_device;
323 	struct kvmppc_xive *xive;    /* Current XIVE device in use */
324 	struct {
325 		struct kvmppc_xive *native;
326 		struct kvmppc_xive *xics_on_xive;
327 	} xive_devices;
328 	struct kvmppc_passthru_irqmap *pimap;
329 #endif
330 	struct kvmppc_ops *kvm_ops;
331 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
332 	struct mutex uvmem_lock;
333 	struct list_head uvmem_pfns;
334 	struct mutex mmu_setup_lock;	/* nests inside vcpu mutexes */
335 	u64 l1_ptcr;
336 	int max_nested_lpid;
337 	struct kvm_nested_guest *nested_guests[KVM_MAX_NESTED_GUESTS];
338 	/* This array can grow quite large, keep it at the end */
339 	struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
340 #endif
341 };
342 
343 #define VCORE_ENTRY_MAP(vc)	((vc)->entry_exit_map & 0xff)
344 #define VCORE_EXIT_MAP(vc)	((vc)->entry_exit_map >> 8)
345 #define VCORE_IS_EXITING(vc)	(VCORE_EXIT_MAP(vc) != 0)
346 
347 /* This bit is used when a vcore exit is triggered from outside the vcore */
348 #define VCORE_EXIT_REQ		0x10000
349 
350 /*
351  * Values for vcore_state.
352  * Note that these are arranged such that lower values
353  * (< VCORE_SLEEPING) don't require stolen time accounting
354  * on load/unload, and higher values do.
355  */
356 #define VCORE_INACTIVE	0
357 #define VCORE_PREEMPT	1
358 #define VCORE_PIGGYBACK	2
359 #define VCORE_SLEEPING	3
360 #define VCORE_RUNNING	4
361 #define VCORE_EXITING	5
362 #define VCORE_POLLING	6
363 
364 /*
365  * Struct used to manage memory for a virtual processor area
366  * registered by a PAPR guest.  There are three types of area
367  * that a guest can register.
368  */
369 struct kvmppc_vpa {
370 	unsigned long gpa;	/* Current guest phys addr */
371 	void *pinned_addr;	/* Address in kernel linear mapping */
372 	void *pinned_end;	/* End of region */
373 	unsigned long next_gpa;	/* Guest phys addr for update */
374 	unsigned long len;	/* Number of bytes required */
375 	u8 update_pending;	/* 1 => update pinned_addr from next_gpa */
376 	bool dirty;		/* true => area has been modified by kernel */
377 };
378 
379 struct kvmppc_pte {
380 	ulong eaddr;
381 	u64 vpage;
382 	ulong raddr;
383 	bool may_read		: 1;
384 	bool may_write		: 1;
385 	bool may_execute	: 1;
386 	unsigned long wimg;
387 	unsigned long rc;
388 	u8 page_size;		/* MMU_PAGE_xxx */
389 	u8 page_shift;
390 };
391 
392 struct kvmppc_mmu {
393 	/* book3s_64 only */
394 	void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
395 	u64  (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
396 	u64  (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
397 	int  (*slbfee)(struct kvm_vcpu *vcpu, gva_t eaddr, ulong *ret_slb);
398 	void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
399 	void (*slbia)(struct kvm_vcpu *vcpu);
400 	/* book3s */
401 	void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
402 	u32  (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
403 	int  (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,
404 		      struct kvmppc_pte *pte, bool data, bool iswrite);
405 	void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
406 	int  (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
407 	u64  (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
408 	bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
409 };
410 
411 struct kvmppc_slb {
412 	u64 esid;
413 	u64 vsid;
414 	u64 orige;
415 	u64 origv;
416 	bool valid	: 1;
417 	bool Ks		: 1;
418 	bool Kp		: 1;
419 	bool nx		: 1;
420 	bool large	: 1;	/* PTEs are 16MB */
421 	bool tb		: 1;	/* 1TB segment */
422 	bool class	: 1;
423 	u8 base_page_size;	/* MMU_PAGE_xxx */
424 };
425 
426 /* Struct used to accumulate timing information in HV real mode code */
427 struct kvmhv_tb_accumulator {
428 	u64	seqcount;	/* used to synchronize access, also count * 2 */
429 	u64	tb_total;	/* total time in timebase ticks */
430 	u64	tb_min;		/* min time */
431 	u64	tb_max;		/* max time */
432 };
433 
434 #ifdef CONFIG_PPC_BOOK3S_64
435 struct kvmppc_irq_map {
436 	u32	r_hwirq;
437 	u32	v_hwirq;
438 	struct irq_desc *desc;
439 };
440 
441 #define	KVMPPC_PIRQ_MAPPED	1024
442 struct kvmppc_passthru_irqmap {
443 	int n_mapped;
444 	struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED];
445 };
446 #endif
447 
448 # ifdef CONFIG_PPC_FSL_BOOK3E
449 #define KVMPPC_BOOKE_IAC_NUM	2
450 #define KVMPPC_BOOKE_DAC_NUM	2
451 # else
452 #define KVMPPC_BOOKE_IAC_NUM	4
453 #define KVMPPC_BOOKE_DAC_NUM	2
454 # endif
455 #define KVMPPC_BOOKE_MAX_IAC	4
456 #define KVMPPC_BOOKE_MAX_DAC	2
457 
458 /* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
459 #define KVMPPC_EPR_NONE		0 /* EPR not supported */
460 #define KVMPPC_EPR_USER		1 /* exit to userspace to fill EPR */
461 #define KVMPPC_EPR_KERNEL	2 /* in-kernel irqchip */
462 
463 #define KVMPPC_IRQ_DEFAULT	0
464 #define KVMPPC_IRQ_MPIC		1
465 #define KVMPPC_IRQ_XICS		2 /* Includes a XIVE option */
466 #define KVMPPC_IRQ_XIVE		3 /* XIVE native exploitation mode */
467 
468 #define MMIO_HPTE_CACHE_SIZE	4
469 
470 struct mmio_hpte_cache_entry {
471 	unsigned long hpte_v;
472 	unsigned long hpte_r;
473 	unsigned long rpte;
474 	unsigned long pte_index;
475 	unsigned long eaddr;
476 	unsigned long slb_v;
477 	long mmio_update;
478 	unsigned int slb_base_pshift;
479 };
480 
481 struct mmio_hpte_cache {
482 	struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE];
483 	unsigned int index;
484 };
485 
486 #define KVMPPC_VSX_COPY_NONE		0
487 #define KVMPPC_VSX_COPY_WORD		1
488 #define KVMPPC_VSX_COPY_DWORD		2
489 #define KVMPPC_VSX_COPY_DWORD_LOAD_DUMP	3
490 #define KVMPPC_VSX_COPY_WORD_LOAD_DUMP	4
491 
492 #define KVMPPC_VMX_COPY_BYTE		8
493 #define KVMPPC_VMX_COPY_HWORD		9
494 #define KVMPPC_VMX_COPY_WORD		10
495 #define KVMPPC_VMX_COPY_DWORD		11
496 
497 struct openpic;
498 
499 /* W0 and W1 of a XIVE thread management context */
500 union xive_tma_w01 {
501 	struct {
502 		u8	nsr;
503 		u8	cppr;
504 		u8	ipb;
505 		u8	lsmfb;
506 		u8	ack;
507 		u8	inc;
508 		u8	age;
509 		u8	pipr;
510 	};
511 	__be64 w01;
512 };
513 
514 struct kvm_vcpu_arch {
515 	ulong host_stack;
516 	u32 host_pid;
517 #ifdef CONFIG_PPC_BOOK3S
518 	struct kvmppc_slb slb[64];
519 	int slb_max;		/* 1 + index of last valid entry in slb[] */
520 	int slb_nr;		/* total number of entries in SLB */
521 	struct kvmppc_mmu mmu;
522 	struct kvmppc_vcpu_book3s *book3s;
523 #endif
524 #ifdef CONFIG_PPC_BOOK3S_32
525 	struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
526 #endif
527 
528 	struct pt_regs regs;
529 
530 	struct thread_fp_state fp;
531 
532 #ifdef CONFIG_SPE
533 	ulong evr[32];
534 	ulong spefscr;
535 	ulong host_spefscr;
536 	u64 acc;
537 #endif
538 #ifdef CONFIG_ALTIVEC
539 	struct thread_vr_state vr;
540 #endif
541 
542 #ifdef CONFIG_KVM_BOOKE_HV
543 	u32 host_mas4;
544 	u32 host_mas6;
545 	u32 shadow_epcr;
546 	u32 shadow_msrp;
547 	u32 eplc;
548 	u32 epsc;
549 	u32 oldpir;
550 #endif
551 
552 #if defined(CONFIG_BOOKE)
553 #if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
554 	u32 epcr;
555 #endif
556 #endif
557 
558 #ifdef CONFIG_PPC_BOOK3S
559 	/* For Gekko paired singles */
560 	u32 qpr[32];
561 #endif
562 
563 #ifdef CONFIG_PPC_BOOK3S
564 	ulong tar;
565 #endif
566 
567 #ifdef CONFIG_PPC_BOOK3S
568 	ulong hflags;
569 	ulong guest_owned_ext;
570 	ulong purr;
571 	ulong spurr;
572 	ulong ic;
573 	ulong dscr;
574 	ulong amr;
575 	ulong uamor;
576 	ulong iamr;
577 	u32 ctrl;
578 	u32 dabrx;
579 	ulong dabr;
580 	ulong dawr0;
581 	ulong dawrx0;
582 	ulong dawr1;
583 	ulong dawrx1;
584 	ulong ciabr;
585 	ulong cfar;
586 	ulong ppr;
587 	u32 pspb;
588 	ulong fscr;
589 	ulong shadow_fscr;
590 	ulong ebbhr;
591 	ulong ebbrr;
592 	ulong bescr;
593 	ulong csigr;
594 	ulong tacr;
595 	ulong tcscr;
596 	ulong acop;
597 	ulong wort;
598 	ulong tid;
599 	ulong psscr;
600 	ulong hfscr;
601 	ulong shadow_srr1;
602 #endif
603 	u32 vrsave; /* also USPRG0 */
604 	u32 mmucr;
605 	/* shadow_msr is unused for BookE HV */
606 	ulong shadow_msr;
607 	ulong csrr0;
608 	ulong csrr1;
609 	ulong dsrr0;
610 	ulong dsrr1;
611 	ulong mcsrr0;
612 	ulong mcsrr1;
613 	ulong mcsr;
614 	ulong dec;
615 #ifdef CONFIG_BOOKE
616 	u32 decar;
617 #endif
618 	/* Time base value when we entered the guest */
619 	u64 entry_tb;
620 	u64 entry_vtb;
621 	u64 entry_ic;
622 	u32 tcr;
623 	ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
624 	u32 ivor[64];
625 	ulong ivpr;
626 	u32 pvr;
627 
628 	u32 shadow_pid;
629 	u32 shadow_pid1;
630 	u32 pid;
631 	u32 swap_pid;
632 
633 	u32 ccr0;
634 	u32 ccr1;
635 	u32 dbsr;
636 
637 	u64 mmcr[4];	/* MMCR0, MMCR1, MMCR2, MMCR3 */
638 	u64 mmcra;
639 	u64 mmcrs;
640 	u32 pmc[8];
641 	u32 spmc[2];
642 	u64 siar;
643 	u64 sdar;
644 	u64 sier[3];
645 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
646 	u64 tfhar;
647 	u64 texasr;
648 	u64 tfiar;
649 	u64 orig_texasr;
650 
651 	u32 cr_tm;
652 	u64 xer_tm;
653 	u64 lr_tm;
654 	u64 ctr_tm;
655 	u64 amr_tm;
656 	u64 ppr_tm;
657 	u64 dscr_tm;
658 	u64 tar_tm;
659 
660 	ulong gpr_tm[32];
661 
662 	struct thread_fp_state fp_tm;
663 
664 	struct thread_vr_state vr_tm;
665 	u32 vrsave_tm; /* also USPRG0 */
666 #endif
667 
668 #ifdef CONFIG_KVM_EXIT_TIMING
669 	struct mutex exit_timing_lock;
670 	struct kvmppc_exit_timing timing_exit;
671 	struct kvmppc_exit_timing timing_last_enter;
672 	u32 last_exit_type;
673 	u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
674 	u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
675 	u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
676 	u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
677 	u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
678 	u64 timing_last_exit;
679 	struct dentry *debugfs_exit_timing;
680 #endif
681 
682 #ifdef CONFIG_PPC_BOOK3S
683 	ulong fault_dar;
684 	u32 fault_dsisr;
685 	unsigned long intr_msr;
686 	ulong fault_gpa;	/* guest real address of page fault (POWER9) */
687 #endif
688 
689 #ifdef CONFIG_BOOKE
690 	ulong fault_dear;
691 	ulong fault_esr;
692 	ulong queued_dear;
693 	ulong queued_esr;
694 	spinlock_t wdt_lock;
695 	struct timer_list wdt_timer;
696 	u32 tlbcfg[4];
697 	u32 tlbps[4];
698 	u32 mmucfg;
699 	u32 eptcfg;
700 	u32 epr;
701 	u64 sprg9;
702 	u32 pwrmgtcr0;
703 	u32 crit_save;
704 	/* guest debug registers*/
705 	struct debug_reg dbg_reg;
706 #endif
707 	gpa_t paddr_accessed;
708 	gva_t vaddr_accessed;
709 	pgd_t *pgdir;
710 
711 	u16 io_gpr; /* GPR used as IO source/target */
712 	u8 mmio_host_swabbed;
713 	u8 mmio_sign_extend;
714 	/* conversion between single and double precision */
715 	u8 mmio_sp64_extend;
716 	/*
717 	 * Number of simulations for vsx.
718 	 * If we use 2*8bytes to simulate 1*16bytes,
719 	 * then the number should be 2 and
720 	 * mmio_copy_type=KVMPPC_VSX_COPY_DWORD.
721 	 * If we use 4*4bytes to simulate 1*16bytes,
722 	 * the number should be 4 and
723 	 * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD.
724 	 */
725 	u8 mmio_vsx_copy_nums;
726 	u8 mmio_vsx_offset;
727 	u8 mmio_vmx_copy_nums;
728 	u8 mmio_vmx_offset;
729 	u8 mmio_copy_type;
730 	u8 osi_needed;
731 	u8 osi_enabled;
732 	u8 papr_enabled;
733 	u8 watchdog_enabled;
734 	u8 sane;
735 	u8 cpu_type;
736 	u8 hcall_needed;
737 	u8 epr_flags; /* KVMPPC_EPR_xxx */
738 	u8 epr_needed;
739 	u8 external_oneshot;	/* clear external irq after delivery */
740 
741 	u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
742 
743 	struct hrtimer dec_timer;
744 	u64 dec_jiffies;
745 	u64 dec_expires;
746 	unsigned long pending_exceptions;
747 	u8 ceded;
748 	u8 prodded;
749 	u8 doorbell_request;
750 	u8 irq_pending; /* Used by XIVE to signal pending guest irqs */
751 	u32 last_inst;
752 
753 	struct rcuwait *waitp;
754 	struct kvmppc_vcore *vcore;
755 	int ret;
756 	int trap;
757 	int state;
758 	int ptid;
759 	int thread_cpu;
760 	int prev_cpu;
761 	bool timer_running;
762 	wait_queue_head_t cpu_run;
763 	struct machine_check_event mce_evt; /* Valid if trap == 0x200 */
764 
765 	struct kvm_vcpu_arch_shared *shared;
766 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
767 	bool shared_big_endian;
768 #endif
769 	unsigned long magic_page_pa; /* phys addr to map the magic page to */
770 	unsigned long magic_page_ea; /* effect. addr to map the magic page to */
771 	bool disable_kernel_nx;
772 
773 	int irq_type;		/* one of KVM_IRQ_* */
774 	int irq_cpu_id;
775 	struct openpic *mpic;	/* KVM_IRQ_MPIC */
776 #ifdef CONFIG_KVM_XICS
777 	struct kvmppc_icp *icp; /* XICS presentation controller */
778 	struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */
779 	__be32 xive_cam_word;    /* Cooked W2 in proper endian with valid bit */
780 	u8 xive_pushed;		 /* Is the VP pushed on the physical CPU ? */
781 	u8 xive_esc_on;		 /* Is the escalation irq enabled ? */
782 	union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */
783 	u64 xive_esc_raddr;	 /* Escalation interrupt ESB real addr */
784 	u64 xive_esc_vaddr;	 /* Escalation interrupt ESB virt addr */
785 #endif
786 
787 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
788 	struct kvm_vcpu_arch_shared shregs;
789 
790 	struct mmio_hpte_cache mmio_cache;
791 	unsigned long pgfault_addr;
792 	long pgfault_index;
793 	unsigned long pgfault_hpte[2];
794 	struct mmio_hpte_cache_entry *pgfault_cache;
795 
796 	struct task_struct *run_task;
797 
798 	spinlock_t vpa_update_lock;
799 	struct kvmppc_vpa vpa;
800 	struct kvmppc_vpa dtl;
801 	struct dtl_entry *dtl_ptr;
802 	unsigned long dtl_index;
803 	u64 stolen_logged;
804 	struct kvmppc_vpa slb_shadow;
805 
806 	spinlock_t tbacct_lock;
807 	u64 busy_stolen;
808 	u64 busy_preempt;
809 
810 	u32 emul_inst;
811 
812 	u32 online;
813 
814 	/* For support of nested guests */
815 	struct kvm_nested_guest *nested;
816 	u32 nested_vcpu_id;
817 	gpa_t nested_io_gpr;
818 #endif
819 
820 #ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
821 	struct kvmhv_tb_accumulator *cur_activity;	/* What we're timing */
822 	u64	cur_tb_start;			/* when it started */
823 	struct kvmhv_tb_accumulator rm_entry;	/* real-mode entry code */
824 	struct kvmhv_tb_accumulator rm_intr;	/* real-mode intr handling */
825 	struct kvmhv_tb_accumulator rm_exit;	/* real-mode exit code */
826 	struct kvmhv_tb_accumulator guest_time;	/* guest execution */
827 	struct kvmhv_tb_accumulator cede_time;	/* time napping inside guest */
828 
829 	struct dentry *debugfs_dir;
830 #endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
831 };
832 
833 #define VCPU_FPR(vcpu, i)	(vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
834 #define VCPU_VSX_FPR(vcpu, i, j)	((vcpu)->arch.fp.fpr[i][j])
835 #define VCPU_VSX_VR(vcpu, i)		((vcpu)->arch.vr.vr[i])
836 
837 /* Values for vcpu->arch.state */
838 #define KVMPPC_VCPU_NOTREADY		0
839 #define KVMPPC_VCPU_RUNNABLE		1
840 #define KVMPPC_VCPU_BUSY_IN_HOST	2
841 
842 /* Values for vcpu->arch.io_gpr */
843 #define KVM_MMIO_REG_MASK	0x003f
844 #define KVM_MMIO_REG_EXT_MASK	0xffc0
845 #define KVM_MMIO_REG_GPR	0x0000
846 #define KVM_MMIO_REG_FPR	0x0040
847 #define KVM_MMIO_REG_QPR	0x0080
848 #define KVM_MMIO_REG_FQPR	0x00c0
849 #define KVM_MMIO_REG_VSX	0x0100
850 #define KVM_MMIO_REG_VMX	0x0180
851 #define KVM_MMIO_REG_NESTED_GPR	0xffc0
852 
853 
854 #define __KVM_HAVE_ARCH_WQP
855 #define __KVM_HAVE_CREATE_DEVICE
856 
857 static inline void kvm_arch_hardware_disable(void) {}
858 static inline void kvm_arch_hardware_unsetup(void) {}
859 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
860 static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {}
861 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
862 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
863 static inline void kvm_arch_exit(void) {}
864 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
865 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
866 static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
867 
868 #endif /* __POWERPC_KVM_HOST_H__ */
869