xref: /linux/arch/powerpc/include/asm/kvm_host.h (revision 2a27c431)
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 #include <asm/guest-state-buffer.h>
29 
30 #define __KVM_HAVE_ARCH_VCPU_DEBUGFS
31 
32 #define KVM_MAX_VCPUS		NR_CPUS
33 #define KVM_MAX_VCORES		NR_CPUS
34 
35 #include <asm/cputhreads.h>
36 
37 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
38 #include <asm/kvm_book3s_asm.h>		/* for MAX_SMT_THREADS */
39 #define KVM_MAX_VCPU_IDS	(MAX_SMT_THREADS * KVM_MAX_VCORES)
40 
41 /*
42  * Limit the nested partition table to 4096 entries (because that's what
43  * hardware supports). Both guest and host use this value.
44  */
45 #define KVM_MAX_NESTED_GUESTS_SHIFT	12
46 
47 #else
48 #define KVM_MAX_VCPU_IDS	KVM_MAX_VCPUS
49 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
50 
51 #define __KVM_HAVE_ARCH_INTC_INITIALIZED
52 
53 #define KVM_HALT_POLL_NS_DEFAULT 10000	/* 10 us */
54 
55 /* These values are internal and can be increased later */
56 #define KVM_NR_IRQCHIPS          1
57 #define KVM_IRQCHIP_NUM_PINS     256
58 
59 /* PPC-specific vcpu->requests bit members */
60 #define KVM_REQ_WATCHDOG	KVM_ARCH_REQ(0)
61 #define KVM_REQ_EPR_EXIT	KVM_ARCH_REQ(1)
62 #define KVM_REQ_PENDING_TIMER	KVM_ARCH_REQ(2)
63 
64 #include <linux/mmu_notifier.h>
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 	struct kvm_vm_stat_generic generic;
91 	u64 num_2M_pages;
92 	u64 num_1G_pages;
93 };
94 
95 struct kvm_vcpu_stat {
96 	struct kvm_vcpu_stat_generic generic;
97 	u64 sum_exits;
98 	u64 mmio_exits;
99 	u64 signal_exits;
100 	u64 light_exits;
101 	/* Account for special types of light exits: */
102 	u64 itlb_real_miss_exits;
103 	u64 itlb_virt_miss_exits;
104 	u64 dtlb_real_miss_exits;
105 	u64 dtlb_virt_miss_exits;
106 	u64 syscall_exits;
107 	u64 isi_exits;
108 	u64 dsi_exits;
109 	u64 emulated_inst_exits;
110 	u64 dec_exits;
111 	u64 ext_intr_exits;
112 	u64 halt_successful_wait;
113 	u64 dbell_exits;
114 	u64 gdbell_exits;
115 	u64 ld;
116 	u64 st;
117 #ifdef CONFIG_PPC_BOOK3S
118 	u64 pf_storage;
119 	u64 pf_instruc;
120 	u64 sp_storage;
121 	u64 sp_instruc;
122 	u64 queue_intr;
123 	u64 ld_slow;
124 	u64 st_slow;
125 #endif
126 	u64 pthru_all;
127 	u64 pthru_host;
128 	u64 pthru_bad_aff;
129 };
130 
131 enum kvm_exit_types {
132 	MMIO_EXITS,
133 	SIGNAL_EXITS,
134 	ITLB_REAL_MISS_EXITS,
135 	ITLB_VIRT_MISS_EXITS,
136 	DTLB_REAL_MISS_EXITS,
137 	DTLB_VIRT_MISS_EXITS,
138 	SYSCALL_EXITS,
139 	ISI_EXITS,
140 	DSI_EXITS,
141 	EMULATED_INST_EXITS,
142 	EMULATED_MTMSRWE_EXITS,
143 	EMULATED_WRTEE_EXITS,
144 	EMULATED_MTSPR_EXITS,
145 	EMULATED_MFSPR_EXITS,
146 	EMULATED_MTMSR_EXITS,
147 	EMULATED_MFMSR_EXITS,
148 	EMULATED_TLBSX_EXITS,
149 	EMULATED_TLBWE_EXITS,
150 	EMULATED_RFI_EXITS,
151 	EMULATED_RFCI_EXITS,
152 	EMULATED_RFDI_EXITS,
153 	DEC_EXITS,
154 	EXT_INTR_EXITS,
155 	HALT_WAKEUP,
156 	USR_PR_INST,
157 	FP_UNAVAIL,
158 	DEBUG_EXITS,
159 	TIMEINGUEST,
160 	DBELL_EXITS,
161 	GDBELL_EXITS,
162 	__NUMBER_OF_KVM_EXIT_TYPES
163 };
164 
165 /* allow access to big endian 32bit upper/lower parts and 64bit var */
166 struct kvmppc_exit_timing {
167 	union {
168 		u64 tv64;
169 		struct {
170 			u32 tbu, tbl;
171 		} tv32;
172 	};
173 };
174 
175 struct kvmppc_pginfo {
176 	unsigned long pfn;
177 	atomic_t refcnt;
178 };
179 
180 struct kvmppc_spapr_tce_iommu_table {
181 	struct rcu_head rcu;
182 	struct list_head next;
183 	struct iommu_table *tbl;
184 	struct kref kref;
185 };
186 
187 #define TCES_PER_PAGE	(PAGE_SIZE / sizeof(u64))
188 
189 struct kvmppc_spapr_tce_table {
190 	struct list_head list;
191 	struct kvm *kvm;
192 	u64 liobn;
193 	struct rcu_head rcu;
194 	u32 page_shift;
195 	u64 offset;		/* in pages */
196 	u64 size;		/* window size in pages */
197 	struct list_head iommu_tables;
198 	struct mutex alloc_lock;
199 	struct page *pages[];
200 };
201 
202 /* XICS components, defined in book3s_xics.c */
203 struct kvmppc_xics;
204 struct kvmppc_icp;
205 extern struct kvm_device_ops kvm_xics_ops;
206 
207 /* XIVE components, defined in book3s_xive.c */
208 struct kvmppc_xive;
209 struct kvmppc_xive_vcpu;
210 extern struct kvm_device_ops kvm_xive_ops;
211 extern struct kvm_device_ops kvm_xive_native_ops;
212 
213 struct kvmppc_passthru_irqmap;
214 
215 /*
216  * The reverse mapping array has one entry for each HPTE,
217  * which stores the guest's view of the second word of the HPTE
218  * (including the guest physical address of the mapping),
219  * plus forward and backward pointers in a doubly-linked ring
220  * of HPTEs that map the same host page.  The pointers in this
221  * ring are 32-bit HPTE indexes, to save space.
222  */
223 struct revmap_entry {
224 	unsigned long guest_rpte;
225 	unsigned int forw, back;
226 };
227 
228 /*
229  * The rmap array of size number of guest pages is allocated for each memslot.
230  * This array is used to store usage specific information about the guest page.
231  * Below are the encodings of the various possible usage types.
232  */
233 /* Free bits which can be used to define a new usage */
234 #define KVMPPC_RMAP_TYPE_MASK	0xff00000000000000
235 #define KVMPPC_RMAP_NESTED	0xc000000000000000	/* Nested rmap array */
236 #define KVMPPC_RMAP_HPT		0x0100000000000000	/* HPT guest */
237 
238 /*
239  * rmap usage definition for a hash page table (hpt) guest:
240  * 0x0000080000000000	Lock bit
241  * 0x0000018000000000	RC bits
242  * 0x0000000100000000	Present bit
243  * 0x00000000ffffffff	HPT index bits
244  * The bottom 32 bits are the index in the guest HPT of a HPTE that points to
245  * the page.
246  */
247 #define KVMPPC_RMAP_LOCK_BIT	43
248 #define KVMPPC_RMAP_RC_SHIFT	32
249 #define KVMPPC_RMAP_REFERENCED	(HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)
250 #define KVMPPC_RMAP_PRESENT	0x100000000ul
251 #define KVMPPC_RMAP_INDEX	0xfffffffful
252 
253 struct kvm_arch_memory_slot {
254 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
255 	unsigned long *rmap;
256 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
257 };
258 
259 struct kvm_hpt_info {
260 	/* Host virtual (linear mapping) address of guest HPT */
261 	unsigned long virt;
262 	/* Array of reverse mapping entries for each guest HPTE */
263 	struct revmap_entry *rev;
264 	/* Guest HPT size is 2**(order) bytes */
265 	u32 order;
266 	/* 1 if HPT allocated with CMA, 0 otherwise */
267 	int cma;
268 };
269 
270 struct kvm_resize_hpt;
271 
272 /* Flag values for kvm_arch.secure_guest */
273 #define KVMPPC_SECURE_INIT_START 0x1 /* H_SVM_INIT_START has been called */
274 #define KVMPPC_SECURE_INIT_DONE  0x2 /* H_SVM_INIT_DONE completed */
275 #define KVMPPC_SECURE_INIT_ABORT 0x4 /* H_SVM_INIT_ABORT issued */
276 
277 struct kvm_arch {
278 	u64 lpid;
279 	unsigned int smt_mode;		/* # vcpus per virtual core */
280 	unsigned int emul_smt_mode;	/* emualted SMT mode, on P9 */
281 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
282 	unsigned int tlb_sets;
283 	struct kvm_hpt_info hpt;
284 	atomic64_t mmio_update;
285 	unsigned int host_lpid;
286 	unsigned long host_lpcr;
287 	unsigned long sdr1;
288 	unsigned long host_sdr1;
289 	unsigned long lpcr;
290 	unsigned long vrma_slb_v;
291 	int mmu_ready;
292 	atomic_t vcpus_running;
293 	u32 online_vcores;
294 	atomic_t hpte_mod_interest;
295 	cpumask_t need_tlb_flush;
296 	u8 radix;
297 	u8 fwnmi_enabled;
298 	u8 secure_guest;
299 	u8 svm_enabled;
300 	bool nested_enable;
301 	bool dawr1_enabled;
302 	pgd_t *pgtable;
303 	u64 process_table;
304 	struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */
305 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
306 #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
307 	struct mutex hpt_mutex;
308 #endif
309 #ifdef CONFIG_PPC_BOOK3S_64
310 	struct list_head spapr_tce_tables;
311 	struct list_head rtas_tokens;
312 	struct mutex rtas_token_lock;
313 	DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
314 #endif
315 #ifdef CONFIG_KVM_MPIC
316 	struct openpic *mpic;
317 #endif
318 #ifdef CONFIG_KVM_XICS
319 	struct kvmppc_xics *xics;
320 	struct kvmppc_xics *xics_device;
321 	struct kvmppc_xive *xive;    /* Current XIVE device in use */
322 	struct {
323 		struct kvmppc_xive *native;
324 		struct kvmppc_xive *xics_on_xive;
325 	} xive_devices;
326 	struct kvmppc_passthru_irqmap *pimap;
327 #endif
328 	struct kvmppc_ops *kvm_ops;
329 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
330 	struct mutex uvmem_lock;
331 	struct list_head uvmem_pfns;
332 	struct mutex mmu_setup_lock;	/* nests inside vcpu mutexes */
333 	u64 l1_ptcr;
334 	struct idr kvm_nested_guest_idr;
335 	/* This array can grow quite large, keep it at the end */
336 	struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
337 #endif
338 };
339 
340 #define VCORE_ENTRY_MAP(vc)	((vc)->entry_exit_map & 0xff)
341 #define VCORE_EXIT_MAP(vc)	((vc)->entry_exit_map >> 8)
342 #define VCORE_IS_EXITING(vc)	(VCORE_EXIT_MAP(vc) != 0)
343 
344 /* This bit is used when a vcore exit is triggered from outside the vcore */
345 #define VCORE_EXIT_REQ		0x10000
346 
347 /*
348  * Values for vcore_state.
349  * Note that these are arranged such that lower values
350  * (< VCORE_SLEEPING) don't require stolen time accounting
351  * on load/unload, and higher values do.
352  */
353 #define VCORE_INACTIVE	0
354 #define VCORE_PREEMPT	1
355 #define VCORE_PIGGYBACK	2
356 #define VCORE_SLEEPING	3
357 #define VCORE_RUNNING	4
358 #define VCORE_EXITING	5
359 #define VCORE_POLLING	6
360 
361 /*
362  * Struct used to manage memory for a virtual processor area
363  * registered by a PAPR guest.  There are three types of area
364  * that a guest can register.
365  */
366 struct kvmppc_vpa {
367 	unsigned long gpa;	/* Current guest phys addr */
368 	void *pinned_addr;	/* Address in kernel linear mapping */
369 	void *pinned_end;	/* End of region */
370 	unsigned long next_gpa;	/* Guest phys addr for update */
371 	unsigned long len;	/* Number of bytes required */
372 	u8 update_pending;	/* 1 => update pinned_addr from next_gpa */
373 	bool dirty;		/* true => area has been modified by kernel */
374 };
375 
376 struct kvmppc_pte {
377 	ulong eaddr;
378 	u64 vpage;
379 	ulong raddr;
380 	bool may_read		: 1;
381 	bool may_write		: 1;
382 	bool may_execute	: 1;
383 	unsigned long wimg;
384 	unsigned long rc;
385 	u8 page_size;		/* MMU_PAGE_xxx */
386 	u8 page_shift;
387 };
388 
389 struct kvmppc_mmu {
390 	/* book3s_64 only */
391 	void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
392 	u64  (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
393 	u64  (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
394 	int  (*slbfee)(struct kvm_vcpu *vcpu, gva_t eaddr, ulong *ret_slb);
395 	void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
396 	void (*slbia)(struct kvm_vcpu *vcpu);
397 	/* book3s */
398 	void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
399 	u32  (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
400 	int  (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,
401 		      struct kvmppc_pte *pte, bool data, bool iswrite);
402 	void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
403 	int  (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
404 	u64  (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
405 	bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
406 };
407 
408 struct kvmppc_slb {
409 	u64 esid;
410 	u64 vsid;
411 	u64 orige;
412 	u64 origv;
413 	bool valid	: 1;
414 	bool Ks		: 1;
415 	bool Kp		: 1;
416 	bool nx		: 1;
417 	bool large	: 1;	/* PTEs are 16MB */
418 	bool tb		: 1;	/* 1TB segment */
419 	bool class	: 1;
420 	u8 base_page_size;	/* MMU_PAGE_xxx */
421 };
422 
423 /* Struct used to accumulate timing information in HV real mode code */
424 struct kvmhv_tb_accumulator {
425 	u64	seqcount;	/* used to synchronize access, also count * 2 */
426 	u64	tb_total;	/* total time in timebase ticks */
427 	u64	tb_min;		/* min time */
428 	u64	tb_max;		/* max time */
429 };
430 
431 #ifdef CONFIG_PPC_BOOK3S_64
432 struct kvmppc_irq_map {
433 	u32	r_hwirq;
434 	u32	v_hwirq;
435 	struct irq_desc *desc;
436 };
437 
438 #define	KVMPPC_PIRQ_MAPPED	1024
439 struct kvmppc_passthru_irqmap {
440 	int n_mapped;
441 	struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED];
442 };
443 #endif
444 
445 # ifdef CONFIG_PPC_E500
446 #define KVMPPC_BOOKE_IAC_NUM	2
447 #define KVMPPC_BOOKE_DAC_NUM	2
448 # else
449 #define KVMPPC_BOOKE_IAC_NUM	4
450 #define KVMPPC_BOOKE_DAC_NUM	2
451 # endif
452 #define KVMPPC_BOOKE_MAX_IAC	4
453 #define KVMPPC_BOOKE_MAX_DAC	2
454 
455 /* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
456 #define KVMPPC_EPR_NONE		0 /* EPR not supported */
457 #define KVMPPC_EPR_USER		1 /* exit to userspace to fill EPR */
458 #define KVMPPC_EPR_KERNEL	2 /* in-kernel irqchip */
459 
460 #define KVMPPC_IRQ_DEFAULT	0
461 #define KVMPPC_IRQ_MPIC		1
462 #define KVMPPC_IRQ_XICS		2 /* Includes a XIVE option */
463 #define KVMPPC_IRQ_XIVE		3 /* XIVE native exploitation mode */
464 
465 #define MMIO_HPTE_CACHE_SIZE	4
466 
467 struct mmio_hpte_cache_entry {
468 	unsigned long hpte_v;
469 	unsigned long hpte_r;
470 	unsigned long rpte;
471 	unsigned long pte_index;
472 	unsigned long eaddr;
473 	unsigned long slb_v;
474 	long mmio_update;
475 	unsigned int slb_base_pshift;
476 };
477 
478 struct mmio_hpte_cache {
479 	struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE];
480 	unsigned int index;
481 };
482 
483 #define KVMPPC_VSX_COPY_NONE		0
484 #define KVMPPC_VSX_COPY_WORD		1
485 #define KVMPPC_VSX_COPY_DWORD		2
486 #define KVMPPC_VSX_COPY_DWORD_LOAD_DUMP	3
487 #define KVMPPC_VSX_COPY_WORD_LOAD_DUMP	4
488 
489 #define KVMPPC_VMX_COPY_BYTE		8
490 #define KVMPPC_VMX_COPY_HWORD		9
491 #define KVMPPC_VMX_COPY_WORD		10
492 #define KVMPPC_VMX_COPY_DWORD		11
493 
494 struct openpic;
495 
496 /* W0 and W1 of a XIVE thread management context */
497 union xive_tma_w01 {
498 	struct {
499 		u8	nsr;
500 		u8	cppr;
501 		u8	ipb;
502 		u8	lsmfb;
503 		u8	ack;
504 		u8	inc;
505 		u8	age;
506 		u8	pipr;
507 	};
508 	__be64 w01;
509 };
510 
511  /* Nestedv2 H_GUEST_RUN_VCPU configuration */
512 struct kvmhv_nestedv2_config {
513 	struct kvmppc_gs_buff_info vcpu_run_output_cfg;
514 	struct kvmppc_gs_buff_info vcpu_run_input_cfg;
515 	u64 vcpu_run_output_size;
516 };
517 
518  /* Nestedv2 L1<->L0 communication state */
519 struct kvmhv_nestedv2_io {
520 	struct kvmhv_nestedv2_config cfg;
521 	struct kvmppc_gs_buff *vcpu_run_output;
522 	struct kvmppc_gs_buff *vcpu_run_input;
523 	struct kvmppc_gs_msg *vcpu_message;
524 	struct kvmppc_gs_msg *vcore_message;
525 	struct kvmppc_gs_bitmap valids;
526 };
527 
528 struct kvm_vcpu_arch {
529 	ulong host_stack;
530 	u32 host_pid;
531 #ifdef CONFIG_PPC_BOOK3S
532 	struct kvmppc_slb slb[64];
533 	int slb_max;		/* 1 + index of last valid entry in slb[] */
534 	int slb_nr;		/* total number of entries in SLB */
535 	struct kvmppc_mmu mmu;
536 	struct kvmppc_vcpu_book3s *book3s;
537 #endif
538 #ifdef CONFIG_PPC_BOOK3S_32
539 	struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
540 #endif
541 
542 	/*
543 	 * This is passed along to the HV via H_ENTER_NESTED. Align to
544 	 * prevent it crossing a real 4K page.
545 	 */
546 	struct pt_regs regs __aligned(512);
547 
548 	struct thread_fp_state fp;
549 
550 #ifdef CONFIG_SPE
551 	ulong evr[32];
552 	ulong spefscr;
553 	ulong host_spefscr;
554 	u64 acc;
555 #endif
556 #ifdef CONFIG_ALTIVEC
557 	struct thread_vr_state vr;
558 #endif
559 
560 #ifdef CONFIG_KVM_BOOKE_HV
561 	u32 host_mas4;
562 	u32 host_mas6;
563 	u32 shadow_epcr;
564 	u32 shadow_msrp;
565 	u32 eplc;
566 	u32 epsc;
567 	u32 oldpir;
568 #endif
569 
570 #if defined(CONFIG_BOOKE)
571 #if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
572 	u32 epcr;
573 #endif
574 #endif
575 
576 #ifdef CONFIG_PPC_BOOK3S
577 	/* For Gekko paired singles */
578 	u32 qpr[32];
579 #endif
580 
581 #ifdef CONFIG_PPC_BOOK3S
582 	ulong tar;
583 #endif
584 
585 #ifdef CONFIG_PPC_BOOK3S
586 	ulong hflags;
587 	ulong guest_owned_ext;
588 	ulong purr;
589 	ulong spurr;
590 	ulong ic;
591 	ulong dscr;
592 	ulong amr;
593 	ulong uamor;
594 	ulong iamr;
595 	u32 ctrl;
596 	u32 dabrx;
597 	ulong dabr;
598 	ulong dawr0;
599 	ulong dawrx0;
600 	ulong dawr1;
601 	ulong dawrx1;
602 	ulong dexcr;
603 	ulong hashkeyr;
604 	ulong hashpkeyr;
605 	ulong ciabr;
606 	ulong cfar;
607 	ulong ppr;
608 	u32 pspb;
609 	u8 load_ebb;
610 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
611 	u8 load_tm;
612 #endif
613 	ulong fscr;
614 	ulong shadow_fscr;
615 	ulong ebbhr;
616 	ulong ebbrr;
617 	ulong bescr;
618 	ulong csigr;
619 	ulong tacr;
620 	ulong tcscr;
621 	ulong acop;
622 	ulong wort;
623 	ulong tid;
624 	ulong psscr;
625 	ulong hfscr;
626 	ulong shadow_srr1;
627 #endif
628 	u32 vrsave; /* also USPRG0 */
629 	u32 mmucr;
630 	/* shadow_msr is unused for BookE HV */
631 	ulong shadow_msr;
632 	ulong csrr0;
633 	ulong csrr1;
634 	ulong dsrr0;
635 	ulong dsrr1;
636 	ulong mcsrr0;
637 	ulong mcsrr1;
638 	ulong mcsr;
639 	ulong dec;
640 #ifdef CONFIG_BOOKE
641 	u32 decar;
642 #endif
643 	/* Time base value when we entered the guest */
644 	u64 entry_tb;
645 	u64 entry_vtb;
646 	u64 entry_ic;
647 	u32 tcr;
648 	ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
649 	u32 ivor[64];
650 	ulong ivpr;
651 	u32 pvr;
652 
653 	u32 shadow_pid;
654 	u32 shadow_pid1;
655 	u32 pid;
656 	u32 swap_pid;
657 
658 	u32 ccr0;
659 	u32 ccr1;
660 	u32 dbsr;
661 
662 	u64 mmcr[4];	/* MMCR0, MMCR1, MMCR2, MMCR3 */
663 	u64 mmcra;
664 	u64 mmcrs;
665 	u32 pmc[8];
666 	u32 spmc[2];
667 	u64 siar;
668 	u64 sdar;
669 	u64 sier[3];
670 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
671 	u64 tfhar;
672 	u64 texasr;
673 	u64 tfiar;
674 	u64 orig_texasr;
675 
676 	u32 cr_tm;
677 	u64 xer_tm;
678 	u64 lr_tm;
679 	u64 ctr_tm;
680 	u64 amr_tm;
681 	u64 ppr_tm;
682 	u64 dscr_tm;
683 	u64 tar_tm;
684 
685 	ulong gpr_tm[32];
686 
687 	struct thread_fp_state fp_tm;
688 
689 	struct thread_vr_state vr_tm;
690 	u32 vrsave_tm; /* also USPRG0 */
691 #endif
692 
693 #ifdef CONFIG_KVM_EXIT_TIMING
694 	struct mutex exit_timing_lock;
695 	struct kvmppc_exit_timing timing_exit;
696 	struct kvmppc_exit_timing timing_last_enter;
697 	u32 last_exit_type;
698 	u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
699 	u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
700 	u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
701 	u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
702 	u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
703 	u64 timing_last_exit;
704 #endif
705 
706 #ifdef CONFIG_PPC_BOOK3S
707 	ulong fault_dar;
708 	u32 fault_dsisr;
709 	unsigned long intr_msr;
710 	/*
711 	 * POWER9 and later: fault_gpa contains the guest real address of page
712 	 * fault for a radix guest, or segment descriptor (equivalent to result
713 	 * from slbmfev of SLB entry that translated the EA) for hash guests.
714 	 */
715 	ulong fault_gpa;
716 #endif
717 
718 #ifdef CONFIG_BOOKE
719 	ulong fault_dear;
720 	ulong fault_esr;
721 	ulong queued_dear;
722 	ulong queued_esr;
723 	spinlock_t wdt_lock;
724 	struct timer_list wdt_timer;
725 	u32 tlbcfg[4];
726 	u32 tlbps[4];
727 	u32 mmucfg;
728 	u32 eptcfg;
729 	u32 epr;
730 	u64 sprg9;
731 	u32 pwrmgtcr0;
732 	u32 crit_save;
733 	/* guest debug registers*/
734 	struct debug_reg dbg_reg;
735 #endif
736 	gpa_t paddr_accessed;
737 	gva_t vaddr_accessed;
738 	pgd_t *pgdir;
739 
740 	u16 io_gpr; /* GPR used as IO source/target */
741 	u8 mmio_host_swabbed;
742 	u8 mmio_sign_extend;
743 	/* conversion between single and double precision */
744 	u8 mmio_sp64_extend;
745 	/*
746 	 * Number of simulations for vsx.
747 	 * If we use 2*8bytes to simulate 1*16bytes,
748 	 * then the number should be 2 and
749 	 * mmio_copy_type=KVMPPC_VSX_COPY_DWORD.
750 	 * If we use 4*4bytes to simulate 1*16bytes,
751 	 * the number should be 4 and
752 	 * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD.
753 	 */
754 	u8 mmio_vsx_copy_nums;
755 	u8 mmio_vsx_offset;
756 	u8 mmio_vmx_copy_nums;
757 	u8 mmio_vmx_offset;
758 	u8 mmio_copy_type;
759 	u8 osi_needed;
760 	u8 osi_enabled;
761 	u8 papr_enabled;
762 	u8 watchdog_enabled;
763 	u8 sane;
764 	u8 cpu_type;
765 	u8 hcall_needed;
766 	u8 epr_flags; /* KVMPPC_EPR_xxx */
767 	u8 epr_needed;
768 	u8 external_oneshot;	/* clear external irq after delivery */
769 
770 	u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
771 
772 	struct hrtimer dec_timer;
773 	u64 dec_jiffies;
774 	u64 dec_expires;	/* Relative to guest timebase. */
775 	unsigned long pending_exceptions;
776 	u8 ceded;
777 	u8 prodded;
778 	u8 doorbell_request;
779 	u8 irq_pending; /* Used by XIVE to signal pending guest irqs */
780 	unsigned long last_inst;
781 
782 	struct rcuwait wait;
783 	struct rcuwait *waitp;
784 	struct kvmppc_vcore *vcore;
785 	int ret;
786 	int trap;
787 	int state;
788 	int ptid;
789 	int thread_cpu;
790 	int prev_cpu;
791 	bool timer_running;
792 	wait_queue_head_t cpu_run;
793 	struct machine_check_event mce_evt; /* Valid if trap == 0x200 */
794 
795 	struct kvm_vcpu_arch_shared *shared;
796 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
797 	bool shared_big_endian;
798 #endif
799 	unsigned long magic_page_pa; /* phys addr to map the magic page to */
800 	unsigned long magic_page_ea; /* effect. addr to map the magic page to */
801 	bool disable_kernel_nx;
802 
803 	int irq_type;		/* one of KVM_IRQ_* */
804 	int irq_cpu_id;
805 	struct openpic *mpic;	/* KVM_IRQ_MPIC */
806 #ifdef CONFIG_KVM_XICS
807 	struct kvmppc_icp *icp; /* XICS presentation controller */
808 	struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */
809 	__be32 xive_cam_word;    /* Cooked W2 in proper endian with valid bit */
810 	u8 xive_pushed;		 /* Is the VP pushed on the physical CPU ? */
811 	u8 xive_esc_on;		 /* Is the escalation irq enabled ? */
812 	union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */
813 	u64 xive_esc_raddr;	 /* Escalation interrupt ESB real addr */
814 	u64 xive_esc_vaddr;	 /* Escalation interrupt ESB virt addr */
815 #endif
816 
817 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
818 	struct kvm_vcpu_arch_shared shregs;
819 
820 	struct mmio_hpte_cache mmio_cache;
821 	unsigned long pgfault_addr;
822 	long pgfault_index;
823 	unsigned long pgfault_hpte[2];
824 	struct mmio_hpte_cache_entry *pgfault_cache;
825 
826 	struct task_struct *run_task;
827 
828 	spinlock_t vpa_update_lock;
829 	struct kvmppc_vpa vpa;
830 	struct kvmppc_vpa dtl;
831 	struct dtl_entry *dtl_ptr;
832 	unsigned long dtl_index;
833 	u64 stolen_logged;
834 	struct kvmppc_vpa slb_shadow;
835 
836 	spinlock_t tbacct_lock;
837 	u64 busy_stolen;
838 	u64 busy_preempt;
839 
840 	u64 emul_inst;
841 
842 	u32 online;
843 
844 	u64 hfscr_permitted;	/* A mask of permitted HFSCR facilities */
845 
846 	/* For support of nested guests */
847 	struct kvm_nested_guest *nested;
848 	u64 nested_hfscr;	/* HFSCR that the L1 requested for the nested guest */
849 	u32 nested_vcpu_id;
850 	gpa_t nested_io_gpr;
851 	/* For nested APIv2 guests*/
852 	struct kvmhv_nestedv2_io nestedv2_io;
853 #endif
854 
855 #ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
856 	struct kvmhv_tb_accumulator *cur_activity;	/* What we're timing */
857 	u64	cur_tb_start;			/* when it started */
858 #ifdef CONFIG_KVM_BOOK3S_HV_P9_TIMING
859 	struct kvmhv_tb_accumulator vcpu_entry;
860 	struct kvmhv_tb_accumulator vcpu_exit;
861 	struct kvmhv_tb_accumulator in_guest;
862 	struct kvmhv_tb_accumulator hcall;
863 	struct kvmhv_tb_accumulator pg_fault;
864 	struct kvmhv_tb_accumulator guest_entry;
865 	struct kvmhv_tb_accumulator guest_exit;
866 #else
867 	struct kvmhv_tb_accumulator rm_entry;	/* real-mode entry code */
868 	struct kvmhv_tb_accumulator rm_intr;	/* real-mode intr handling */
869 	struct kvmhv_tb_accumulator rm_exit;	/* real-mode exit code */
870 	struct kvmhv_tb_accumulator guest_time;	/* guest execution */
871 	struct kvmhv_tb_accumulator cede_time;	/* time napping inside guest */
872 #endif
873 #endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
874 };
875 
876 #define VCPU_FPR(vcpu, i)	(vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
877 #define VCPU_VSX_FPR(vcpu, i, j)	((vcpu)->arch.fp.fpr[i][j])
878 #define VCPU_VSX_VR(vcpu, i)		((vcpu)->arch.vr.vr[i])
879 
880 /* Values for vcpu->arch.state */
881 #define KVMPPC_VCPU_NOTREADY		0
882 #define KVMPPC_VCPU_RUNNABLE		1
883 #define KVMPPC_VCPU_BUSY_IN_HOST	2
884 
885 /* Values for vcpu->arch.io_gpr */
886 #define KVM_MMIO_REG_MASK	0x003f
887 #define KVM_MMIO_REG_EXT_MASK	0xffc0
888 #define KVM_MMIO_REG_GPR	0x0000
889 #define KVM_MMIO_REG_FPR	0x0040
890 #define KVM_MMIO_REG_QPR	0x0080
891 #define KVM_MMIO_REG_FQPR	0x00c0
892 #define KVM_MMIO_REG_VSX	0x0100
893 #define KVM_MMIO_REG_VMX	0x0180
894 #define KVM_MMIO_REG_NESTED_GPR	0xffc0
895 
896 
897 #define __KVM_HAVE_ARCH_WQP
898 #define __KVM_HAVE_CREATE_DEVICE
899 
kvm_arch_sync_events(struct kvm * kvm)900 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
kvm_arch_memslots_updated(struct kvm * kvm,u64 gen)901 static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {}
kvm_arch_flush_shadow_all(struct kvm * kvm)902 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
kvm_arch_vcpu_blocking(struct kvm_vcpu * vcpu)903 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
kvm_arch_vcpu_unblocking(struct kvm_vcpu * vcpu)904 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
905 
906 #endif /* __POWERPC_KVM_HOST_H__ */
907