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 #define KVM_USER_MEM_SLOTS	512
32 
33 #include <asm/cputhreads.h>
34 
35 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
36 #include <asm/kvm_book3s_asm.h>		/* for MAX_SMT_THREADS */
37 #define KVM_MAX_VCPU_ID		(MAX_SMT_THREADS * KVM_MAX_VCORES)
38 #define KVM_MAX_NESTED_GUESTS	KVMPPC_NR_LPIDS
39 
40 #else
41 #define KVM_MAX_VCPU_ID		KVM_MAX_VCPUS
42 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
43 
44 #define __KVM_HAVE_ARCH_INTC_INITIALIZED
45 
46 #define KVM_HALT_POLL_NS_DEFAULT 10000	/* 10 us */
47 
48 /* These values are internal and can be increased later */
49 #define KVM_NR_IRQCHIPS          1
50 #define KVM_IRQCHIP_NUM_PINS     256
51 
52 /* PPC-specific vcpu->requests bit members */
53 #define KVM_REQ_WATCHDOG	KVM_ARCH_REQ(0)
54 #define KVM_REQ_EPR_EXIT	KVM_ARCH_REQ(1)
55 
56 #include <linux/mmu_notifier.h>
57 
58 #define KVM_ARCH_WANT_MMU_NOTIFIER
59 
60 extern int kvm_unmap_hva_range(struct kvm *kvm,
61 			       unsigned long start, unsigned long end);
62 extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
63 extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
64 extern int kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
65 
66 #define HPTEG_CACHE_NUM			(1 << 15)
67 #define HPTEG_HASH_BITS_PTE		13
68 #define HPTEG_HASH_BITS_PTE_LONG	12
69 #define HPTEG_HASH_BITS_VPTE		13
70 #define HPTEG_HASH_BITS_VPTE_LONG	5
71 #define HPTEG_HASH_BITS_VPTE_64K	11
72 #define HPTEG_HASH_NUM_PTE		(1 << HPTEG_HASH_BITS_PTE)
73 #define HPTEG_HASH_NUM_PTE_LONG		(1 << HPTEG_HASH_BITS_PTE_LONG)
74 #define HPTEG_HASH_NUM_VPTE		(1 << HPTEG_HASH_BITS_VPTE)
75 #define HPTEG_HASH_NUM_VPTE_LONG	(1 << HPTEG_HASH_BITS_VPTE_LONG)
76 #define HPTEG_HASH_NUM_VPTE_64K		(1 << HPTEG_HASH_BITS_VPTE_64K)
77 
78 /* Physical Address Mask - allowed range of real mode RAM access */
79 #define KVM_PAM			0x0fffffffffffffffULL
80 
81 struct lppaca;
82 struct slb_shadow;
83 struct dtl_entry;
84 
85 struct kvmppc_vcpu_book3s;
86 struct kvmppc_book3s_shadow_vcpu;
87 struct kvm_nested_guest;
88 
89 struct kvm_vm_stat {
90 	ulong remote_tlb_flush;
91 	ulong num_2M_pages;
92 	ulong num_1G_pages;
93 };
94 
95 struct kvm_vcpu_stat {
96 	u64 sum_exits;
97 	u64 mmio_exits;
98 	u64 signal_exits;
99 	u64 light_exits;
100 	/* Account for special types of light exits: */
101 	u64 itlb_real_miss_exits;
102 	u64 itlb_virt_miss_exits;
103 	u64 dtlb_real_miss_exits;
104 	u64 dtlb_virt_miss_exits;
105 	u64 syscall_exits;
106 	u64 isi_exits;
107 	u64 dsi_exits;
108 	u64 emulated_inst_exits;
109 	u64 dec_exits;
110 	u64 ext_intr_exits;
111 	u64 halt_poll_success_ns;
112 	u64 halt_poll_fail_ns;
113 	u64 halt_wait_ns;
114 	u64 halt_successful_poll;
115 	u64 halt_attempted_poll;
116 	u64 halt_successful_wait;
117 	u64 halt_poll_invalid;
118 	u64 halt_wakeup;
119 	u64 dbell_exits;
120 	u64 gdbell_exits;
121 	u64 ld;
122 	u64 st;
123 #ifdef CONFIG_PPC_BOOK3S
124 	u64 pf_storage;
125 	u64 pf_instruc;
126 	u64 sp_storage;
127 	u64 sp_instruc;
128 	u64 queue_intr;
129 	u64 ld_slow;
130 	u64 st_slow;
131 #endif
132 	u64 pthru_all;
133 	u64 pthru_host;
134 	u64 pthru_bad_aff;
135 };
136 
137 enum kvm_exit_types {
138 	MMIO_EXITS,
139 	SIGNAL_EXITS,
140 	ITLB_REAL_MISS_EXITS,
141 	ITLB_VIRT_MISS_EXITS,
142 	DTLB_REAL_MISS_EXITS,
143 	DTLB_VIRT_MISS_EXITS,
144 	SYSCALL_EXITS,
145 	ISI_EXITS,
146 	DSI_EXITS,
147 	EMULATED_INST_EXITS,
148 	EMULATED_MTMSRWE_EXITS,
149 	EMULATED_WRTEE_EXITS,
150 	EMULATED_MTSPR_EXITS,
151 	EMULATED_MFSPR_EXITS,
152 	EMULATED_MTMSR_EXITS,
153 	EMULATED_MFMSR_EXITS,
154 	EMULATED_TLBSX_EXITS,
155 	EMULATED_TLBWE_EXITS,
156 	EMULATED_RFI_EXITS,
157 	EMULATED_RFCI_EXITS,
158 	EMULATED_RFDI_EXITS,
159 	DEC_EXITS,
160 	EXT_INTR_EXITS,
161 	HALT_WAKEUP,
162 	USR_PR_INST,
163 	FP_UNAVAIL,
164 	DEBUG_EXITS,
165 	TIMEINGUEST,
166 	DBELL_EXITS,
167 	GDBELL_EXITS,
168 	__NUMBER_OF_KVM_EXIT_TYPES
169 };
170 
171 /* allow access to big endian 32bit upper/lower parts and 64bit var */
172 struct kvmppc_exit_timing {
173 	union {
174 		u64 tv64;
175 		struct {
176 			u32 tbu, tbl;
177 		} tv32;
178 	};
179 };
180 
181 struct kvmppc_pginfo {
182 	unsigned long pfn;
183 	atomic_t refcnt;
184 };
185 
186 struct kvmppc_spapr_tce_iommu_table {
187 	struct rcu_head rcu;
188 	struct list_head next;
189 	struct iommu_table *tbl;
190 	struct kref kref;
191 };
192 
193 #define TCES_PER_PAGE	(PAGE_SIZE / sizeof(u64))
194 
195 struct kvmppc_spapr_tce_table {
196 	struct list_head list;
197 	struct kvm *kvm;
198 	u64 liobn;
199 	struct rcu_head rcu;
200 	u32 page_shift;
201 	u64 offset;		/* in pages */
202 	u64 size;		/* window size in pages */
203 	struct list_head iommu_tables;
204 	struct mutex alloc_lock;
205 	struct page *pages[0];
206 };
207 
208 /* XICS components, defined in book3s_xics.c */
209 struct kvmppc_xics;
210 struct kvmppc_icp;
211 extern struct kvm_device_ops kvm_xics_ops;
212 
213 /* XIVE components, defined in book3s_xive.c */
214 struct kvmppc_xive;
215 struct kvmppc_xive_vcpu;
216 extern struct kvm_device_ops kvm_xive_ops;
217 extern struct kvm_device_ops kvm_xive_native_ops;
218 
219 struct kvmppc_passthru_irqmap;
220 
221 /*
222  * The reverse mapping array has one entry for each HPTE,
223  * which stores the guest's view of the second word of the HPTE
224  * (including the guest physical address of the mapping),
225  * plus forward and backward pointers in a doubly-linked ring
226  * of HPTEs that map the same host page.  The pointers in this
227  * ring are 32-bit HPTE indexes, to save space.
228  */
229 struct revmap_entry {
230 	unsigned long guest_rpte;
231 	unsigned int forw, back;
232 };
233 
234 /*
235  * The rmap array of size number of guest pages is allocated for each memslot.
236  * This array is used to store usage specific information about the guest page.
237  * Below are the encodings of the various possible usage types.
238  */
239 /* Free bits which can be used to define a new usage */
240 #define KVMPPC_RMAP_TYPE_MASK	0xff00000000000000
241 #define KVMPPC_RMAP_NESTED	0xc000000000000000	/* Nested rmap array */
242 #define KVMPPC_RMAP_HPT		0x0100000000000000	/* HPT guest */
243 
244 /*
245  * rmap usage definition for a hash page table (hpt) guest:
246  * 0x0000080000000000	Lock bit
247  * 0x0000018000000000	RC bits
248  * 0x0000000100000000	Present bit
249  * 0x00000000ffffffff	HPT index bits
250  * The bottom 32 bits are the index in the guest HPT of a HPTE that points to
251  * the page.
252  */
253 #define KVMPPC_RMAP_LOCK_BIT	43
254 #define KVMPPC_RMAP_RC_SHIFT	32
255 #define KVMPPC_RMAP_REFERENCED	(HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)
256 #define KVMPPC_RMAP_PRESENT	0x100000000ul
257 #define KVMPPC_RMAP_INDEX	0xfffffffful
258 
259 struct kvm_arch_memory_slot {
260 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
261 	unsigned long *rmap;
262 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
263 };
264 
265 struct kvm_hpt_info {
266 	/* Host virtual (linear mapping) address of guest HPT */
267 	unsigned long virt;
268 	/* Array of reverse mapping entries for each guest HPTE */
269 	struct revmap_entry *rev;
270 	/* Guest HPT size is 2**(order) bytes */
271 	u32 order;
272 	/* 1 if HPT allocated with CMA, 0 otherwise */
273 	int cma;
274 };
275 
276 struct kvm_resize_hpt;
277 
278 struct kvm_arch {
279 	unsigned int lpid;
280 	unsigned int smt_mode;		/* # vcpus per virtual core */
281 	unsigned int emul_smt_mode;	/* emualted SMT mode, on P9 */
282 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
283 	unsigned int tlb_sets;
284 	struct kvm_hpt_info hpt;
285 	atomic64_t mmio_update;
286 	unsigned int host_lpid;
287 	unsigned long host_lpcr;
288 	unsigned long sdr1;
289 	unsigned long host_sdr1;
290 	unsigned long lpcr;
291 	unsigned long vrma_slb_v;
292 	int mmu_ready;
293 	atomic_t vcpus_running;
294 	u32 online_vcores;
295 	atomic_t hpte_mod_interest;
296 	cpumask_t need_tlb_flush;
297 	cpumask_t cpu_in_guest;
298 	u8 radix;
299 	u8 fwnmi_enabled;
300 	u8 secure_guest;
301 	bool threads_indep;
302 	bool nested_enable;
303 	pgd_t *pgtable;
304 	u64 process_table;
305 	struct dentry *debugfs_dir;
306 	struct dentry *htab_dentry;
307 	struct dentry *radix_dentry;
308 	struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */
309 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
310 #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
311 	struct mutex hpt_mutex;
312 #endif
313 #ifdef CONFIG_PPC_BOOK3S_64
314 	struct list_head spapr_tce_tables;
315 	struct list_head rtas_tokens;
316 	struct mutex rtas_token_lock;
317 	DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
318 #endif
319 #ifdef CONFIG_KVM_MPIC
320 	struct openpic *mpic;
321 #endif
322 #ifdef CONFIG_KVM_XICS
323 	struct kvmppc_xics *xics;
324 	struct kvmppc_xive *xive;    /* Current XIVE device in use */
325 	struct {
326 		struct kvmppc_xive *native;
327 		struct kvmppc_xive *xics_on_xive;
328 	} xive_devices;
329 	struct kvmppc_passthru_irqmap *pimap;
330 #endif
331 	struct kvmppc_ops *kvm_ops;
332 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
333 	struct mutex mmu_setup_lock;	/* nests inside vcpu mutexes */
334 	u64 l1_ptcr;
335 	int max_nested_lpid;
336 	struct kvm_nested_guest *nested_guests[KVM_MAX_NESTED_GUESTS];
337 	/* This array can grow quite large, keep it at the end */
338 	struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
339 #endif
340 };
341 
342 #define VCORE_ENTRY_MAP(vc)	((vc)->entry_exit_map & 0xff)
343 #define VCORE_EXIT_MAP(vc)	((vc)->entry_exit_map >> 8)
344 #define VCORE_IS_EXITING(vc)	(VCORE_EXIT_MAP(vc) != 0)
345 
346 /* This bit is used when a vcore exit is triggered from outside the vcore */
347 #define VCORE_EXIT_REQ		0x10000
348 
349 /*
350  * Values for vcore_state.
351  * Note that these are arranged such that lower values
352  * (< VCORE_SLEEPING) don't require stolen time accounting
353  * on load/unload, and higher values do.
354  */
355 #define VCORE_INACTIVE	0
356 #define VCORE_PREEMPT	1
357 #define VCORE_PIGGYBACK	2
358 #define VCORE_SLEEPING	3
359 #define VCORE_RUNNING	4
360 #define VCORE_EXITING	5
361 #define VCORE_POLLING	6
362 
363 /*
364  * Struct used to manage memory for a virtual processor area
365  * registered by a PAPR guest.  There are three types of area
366  * that a guest can register.
367  */
368 struct kvmppc_vpa {
369 	unsigned long gpa;	/* Current guest phys addr */
370 	void *pinned_addr;	/* Address in kernel linear mapping */
371 	void *pinned_end;	/* End of region */
372 	unsigned long next_gpa;	/* Guest phys addr for update */
373 	unsigned long len;	/* Number of bytes required */
374 	u8 update_pending;	/* 1 => update pinned_addr from next_gpa */
375 	bool dirty;		/* true => area has been modified by kernel */
376 };
377 
378 struct kvmppc_pte {
379 	ulong eaddr;
380 	u64 vpage;
381 	ulong raddr;
382 	bool may_read		: 1;
383 	bool may_write		: 1;
384 	bool may_execute	: 1;
385 	unsigned long wimg;
386 	unsigned long rc;
387 	u8 page_size;		/* MMU_PAGE_xxx */
388 	u8 page_shift;
389 };
390 
391 struct kvmppc_mmu {
392 	/* book3s_64 only */
393 	void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
394 	u64  (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
395 	u64  (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
396 	int  (*slbfee)(struct kvm_vcpu *vcpu, gva_t eaddr, ulong *ret_slb);
397 	void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
398 	void (*slbia)(struct kvm_vcpu *vcpu);
399 	/* book3s */
400 	void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
401 	u32  (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
402 	int  (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,
403 		      struct kvmppc_pte *pte, bool data, bool iswrite);
404 	void (*reset_msr)(struct kvm_vcpu *vcpu);
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 dawr;
581 	ulong dawrx;
582 	ulong ciabr;
583 	ulong cfar;
584 	ulong ppr;
585 	u32 pspb;
586 	ulong fscr;
587 	ulong shadow_fscr;
588 	ulong ebbhr;
589 	ulong ebbrr;
590 	ulong bescr;
591 	ulong csigr;
592 	ulong tacr;
593 	ulong tcscr;
594 	ulong acop;
595 	ulong wort;
596 	ulong tid;
597 	ulong psscr;
598 	ulong hfscr;
599 	ulong shadow_srr1;
600 #endif
601 	u32 vrsave; /* also USPRG0 */
602 	u32 mmucr;
603 	/* shadow_msr is unused for BookE HV */
604 	ulong shadow_msr;
605 	ulong csrr0;
606 	ulong csrr1;
607 	ulong dsrr0;
608 	ulong dsrr1;
609 	ulong mcsrr0;
610 	ulong mcsrr1;
611 	ulong mcsr;
612 	ulong dec;
613 #ifdef CONFIG_BOOKE
614 	u32 decar;
615 #endif
616 	/* Time base value when we entered the guest */
617 	u64 entry_tb;
618 	u64 entry_vtb;
619 	u64 entry_ic;
620 	u32 tcr;
621 	ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
622 	u32 ivor[64];
623 	ulong ivpr;
624 	u32 pvr;
625 
626 	u32 shadow_pid;
627 	u32 shadow_pid1;
628 	u32 pid;
629 	u32 swap_pid;
630 
631 	u32 ccr0;
632 	u32 ccr1;
633 	u32 dbsr;
634 
635 	u64 mmcr[5];
636 	u32 pmc[8];
637 	u32 spmc[2];
638 	u64 siar;
639 	u64 sdar;
640 	u64 sier;
641 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
642 	u64 tfhar;
643 	u64 texasr;
644 	u64 tfiar;
645 	u64 orig_texasr;
646 
647 	u32 cr_tm;
648 	u64 xer_tm;
649 	u64 lr_tm;
650 	u64 ctr_tm;
651 	u64 amr_tm;
652 	u64 ppr_tm;
653 	u64 dscr_tm;
654 	u64 tar_tm;
655 
656 	ulong gpr_tm[32];
657 
658 	struct thread_fp_state fp_tm;
659 
660 	struct thread_vr_state vr_tm;
661 	u32 vrsave_tm; /* also USPRG0 */
662 #endif
663 
664 #ifdef CONFIG_KVM_EXIT_TIMING
665 	struct mutex exit_timing_lock;
666 	struct kvmppc_exit_timing timing_exit;
667 	struct kvmppc_exit_timing timing_last_enter;
668 	u32 last_exit_type;
669 	u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
670 	u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
671 	u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
672 	u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
673 	u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
674 	u64 timing_last_exit;
675 	struct dentry *debugfs_exit_timing;
676 #endif
677 
678 #ifdef CONFIG_PPC_BOOK3S
679 	ulong fault_dar;
680 	u32 fault_dsisr;
681 	unsigned long intr_msr;
682 	ulong fault_gpa;	/* guest real address of page fault (POWER9) */
683 #endif
684 
685 #ifdef CONFIG_BOOKE
686 	ulong fault_dear;
687 	ulong fault_esr;
688 	ulong queued_dear;
689 	ulong queued_esr;
690 	spinlock_t wdt_lock;
691 	struct timer_list wdt_timer;
692 	u32 tlbcfg[4];
693 	u32 tlbps[4];
694 	u32 mmucfg;
695 	u32 eptcfg;
696 	u32 epr;
697 	u64 sprg9;
698 	u32 pwrmgtcr0;
699 	u32 crit_save;
700 	/* guest debug registers*/
701 	struct debug_reg dbg_reg;
702 #endif
703 	gpa_t paddr_accessed;
704 	gva_t vaddr_accessed;
705 	pgd_t *pgdir;
706 
707 	u16 io_gpr; /* GPR used as IO source/target */
708 	u8 mmio_host_swabbed;
709 	u8 mmio_sign_extend;
710 	/* conversion between single and double precision */
711 	u8 mmio_sp64_extend;
712 	/*
713 	 * Number of simulations for vsx.
714 	 * If we use 2*8bytes to simulate 1*16bytes,
715 	 * then the number should be 2 and
716 	 * mmio_copy_type=KVMPPC_VSX_COPY_DWORD.
717 	 * If we use 4*4bytes to simulate 1*16bytes,
718 	 * the number should be 4 and
719 	 * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD.
720 	 */
721 	u8 mmio_vsx_copy_nums;
722 	u8 mmio_vsx_offset;
723 	u8 mmio_vmx_copy_nums;
724 	u8 mmio_vmx_offset;
725 	u8 mmio_copy_type;
726 	u8 osi_needed;
727 	u8 osi_enabled;
728 	u8 papr_enabled;
729 	u8 watchdog_enabled;
730 	u8 sane;
731 	u8 cpu_type;
732 	u8 hcall_needed;
733 	u8 epr_flags; /* KVMPPC_EPR_xxx */
734 	u8 epr_needed;
735 	u8 external_oneshot;	/* clear external irq after delivery */
736 
737 	u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
738 
739 	struct hrtimer dec_timer;
740 	u64 dec_jiffies;
741 	u64 dec_expires;
742 	unsigned long pending_exceptions;
743 	u8 ceded;
744 	u8 prodded;
745 	u8 doorbell_request;
746 	u8 irq_pending; /* Used by XIVE to signal pending guest irqs */
747 	u32 last_inst;
748 
749 	struct swait_queue_head *wqp;
750 	struct kvmppc_vcore *vcore;
751 	int ret;
752 	int trap;
753 	int state;
754 	int ptid;
755 	int thread_cpu;
756 	int prev_cpu;
757 	bool timer_running;
758 	wait_queue_head_t cpu_run;
759 	struct machine_check_event mce_evt; /* Valid if trap == 0x200 */
760 
761 	struct kvm_vcpu_arch_shared *shared;
762 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
763 	bool shared_big_endian;
764 #endif
765 	unsigned long magic_page_pa; /* phys addr to map the magic page to */
766 	unsigned long magic_page_ea; /* effect. addr to map the magic page to */
767 	bool disable_kernel_nx;
768 
769 	int irq_type;		/* one of KVM_IRQ_* */
770 	int irq_cpu_id;
771 	struct openpic *mpic;	/* KVM_IRQ_MPIC */
772 #ifdef CONFIG_KVM_XICS
773 	struct kvmppc_icp *icp; /* XICS presentation controller */
774 	struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */
775 	__be32 xive_cam_word;    /* Cooked W2 in proper endian with valid bit */
776 	u8 xive_pushed;		 /* Is the VP pushed on the physical CPU ? */
777 	u8 xive_esc_on;		 /* Is the escalation irq enabled ? */
778 	union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */
779 	u64 xive_esc_raddr;	 /* Escalation interrupt ESB real addr */
780 	u64 xive_esc_vaddr;	 /* Escalation interrupt ESB virt addr */
781 #endif
782 
783 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
784 	struct kvm_vcpu_arch_shared shregs;
785 
786 	struct mmio_hpte_cache mmio_cache;
787 	unsigned long pgfault_addr;
788 	long pgfault_index;
789 	unsigned long pgfault_hpte[2];
790 	struct mmio_hpte_cache_entry *pgfault_cache;
791 
792 	struct task_struct *run_task;
793 	struct kvm_run *kvm_run;
794 
795 	spinlock_t vpa_update_lock;
796 	struct kvmppc_vpa vpa;
797 	struct kvmppc_vpa dtl;
798 	struct dtl_entry *dtl_ptr;
799 	unsigned long dtl_index;
800 	u64 stolen_logged;
801 	struct kvmppc_vpa slb_shadow;
802 
803 	spinlock_t tbacct_lock;
804 	u64 busy_stolen;
805 	u64 busy_preempt;
806 
807 	u32 emul_inst;
808 
809 	u32 online;
810 
811 	/* For support of nested guests */
812 	struct kvm_nested_guest *nested;
813 	u32 nested_vcpu_id;
814 	gpa_t nested_io_gpr;
815 #endif
816 
817 #ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
818 	struct kvmhv_tb_accumulator *cur_activity;	/* What we're timing */
819 	u64	cur_tb_start;			/* when it started */
820 	struct kvmhv_tb_accumulator rm_entry;	/* real-mode entry code */
821 	struct kvmhv_tb_accumulator rm_intr;	/* real-mode intr handling */
822 	struct kvmhv_tb_accumulator rm_exit;	/* real-mode exit code */
823 	struct kvmhv_tb_accumulator guest_time;	/* guest execution */
824 	struct kvmhv_tb_accumulator cede_time;	/* time napping inside guest */
825 
826 	struct dentry *debugfs_dir;
827 	struct dentry *debugfs_timings;
828 #endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
829 };
830 
831 #define VCPU_FPR(vcpu, i)	(vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
832 #define VCPU_VSX_FPR(vcpu, i, j)	((vcpu)->arch.fp.fpr[i][j])
833 #define VCPU_VSX_VR(vcpu, i)		((vcpu)->arch.vr.vr[i])
834 
835 /* Values for vcpu->arch.state */
836 #define KVMPPC_VCPU_NOTREADY		0
837 #define KVMPPC_VCPU_RUNNABLE		1
838 #define KVMPPC_VCPU_BUSY_IN_HOST	2
839 
840 /* Values for vcpu->arch.io_gpr */
841 #define KVM_MMIO_REG_MASK	0x003f
842 #define KVM_MMIO_REG_EXT_MASK	0xffc0
843 #define KVM_MMIO_REG_GPR	0x0000
844 #define KVM_MMIO_REG_FPR	0x0040
845 #define KVM_MMIO_REG_QPR	0x0080
846 #define KVM_MMIO_REG_FQPR	0x00c0
847 #define KVM_MMIO_REG_VSX	0x0100
848 #define KVM_MMIO_REG_VMX	0x0180
849 #define KVM_MMIO_REG_NESTED_GPR	0xffc0
850 
851 
852 #define __KVM_HAVE_ARCH_WQP
853 #define __KVM_HAVE_CREATE_DEVICE
854 
855 static inline void kvm_arch_hardware_disable(void) {}
856 static inline void kvm_arch_hardware_unsetup(void) {}
857 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
858 static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {}
859 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
860 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
861 static inline void kvm_arch_exit(void) {}
862 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
863 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
864 static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
865 
866 #endif /* __POWERPC_KVM_HOST_H__ */
867