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_HAVE_ARCH_VCPU_DEBUGFS
30
31#define KVM_MAX_VCPUS		NR_CPUS
32#define KVM_MAX_VCORES		NR_CPUS
33
34#include <asm/cputhreads.h>
35
36#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
37#include <asm/kvm_book3s_asm.h>		/* for MAX_SMT_THREADS */
38#define KVM_MAX_VCPU_IDS	(MAX_SMT_THREADS * KVM_MAX_VCORES)
39
40/*
41 * Limit the nested partition table to 4096 entries (because that's what
42 * hardware supports). Both guest and host use this value.
43 */
44#define KVM_MAX_NESTED_GUESTS_SHIFT	12
45
46#else
47#define KVM_MAX_VCPU_IDS	KVM_MAX_VCPUS
48#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
49
50#define __KVM_HAVE_ARCH_INTC_INITIALIZED
51
52#define KVM_HALT_POLL_NS_DEFAULT 10000	/* 10 us */
53
54/* These values are internal and can be increased later */
55#define KVM_NR_IRQCHIPS          1
56#define KVM_IRQCHIP_NUM_PINS     256
57
58/* PPC-specific vcpu->requests bit members */
59#define KVM_REQ_WATCHDOG	KVM_ARCH_REQ(0)
60#define KVM_REQ_EPR_EXIT	KVM_ARCH_REQ(1)
61#define KVM_REQ_PENDING_TIMER	KVM_ARCH_REQ(2)
62
63#include <linux/mmu_notifier.h>
64
65#define KVM_ARCH_WANT_MMU_NOTIFIER
66
67#define HPTEG_CACHE_NUM			(1 << 15)
68#define HPTEG_HASH_BITS_PTE		13
69#define HPTEG_HASH_BITS_PTE_LONG	12
70#define HPTEG_HASH_BITS_VPTE		13
71#define HPTEG_HASH_BITS_VPTE_LONG	5
72#define HPTEG_HASH_BITS_VPTE_64K	11
73#define HPTEG_HASH_NUM_PTE		(1 << HPTEG_HASH_BITS_PTE)
74#define HPTEG_HASH_NUM_PTE_LONG		(1 << HPTEG_HASH_BITS_PTE_LONG)
75#define HPTEG_HASH_NUM_VPTE		(1 << HPTEG_HASH_BITS_VPTE)
76#define HPTEG_HASH_NUM_VPTE_LONG	(1 << HPTEG_HASH_BITS_VPTE_LONG)
77#define HPTEG_HASH_NUM_VPTE_64K		(1 << HPTEG_HASH_BITS_VPTE_64K)
78
79/* Physical Address Mask - allowed range of real mode RAM access */
80#define KVM_PAM			0x0fffffffffffffffULL
81
82struct lppaca;
83struct slb_shadow;
84struct dtl_entry;
85
86struct kvmppc_vcpu_book3s;
87struct kvmppc_book3s_shadow_vcpu;
88struct kvm_nested_guest;
89
90struct kvm_vm_stat {
91	struct kvm_vm_stat_generic generic;
92	u64 num_2M_pages;
93	u64 num_1G_pages;
94};
95
96struct kvm_vcpu_stat {
97	struct kvm_vcpu_stat_generic generic;
98	u64 sum_exits;
99	u64 mmio_exits;
100	u64 signal_exits;
101	u64 light_exits;
102	/* Account for special types of light exits: */
103	u64 itlb_real_miss_exits;
104	u64 itlb_virt_miss_exits;
105	u64 dtlb_real_miss_exits;
106	u64 dtlb_virt_miss_exits;
107	u64 syscall_exits;
108	u64 isi_exits;
109	u64 dsi_exits;
110	u64 emulated_inst_exits;
111	u64 dec_exits;
112	u64 ext_intr_exits;
113	u64 halt_successful_wait;
114	u64 dbell_exits;
115	u64 gdbell_exits;
116	u64 ld;
117	u64 st;
118#ifdef CONFIG_PPC_BOOK3S
119	u64 pf_storage;
120	u64 pf_instruc;
121	u64 sp_storage;
122	u64 sp_instruc;
123	u64 queue_intr;
124	u64 ld_slow;
125	u64 st_slow;
126#endif
127	u64 pthru_all;
128	u64 pthru_host;
129	u64 pthru_bad_aff;
130};
131
132enum kvm_exit_types {
133	MMIO_EXITS,
134	SIGNAL_EXITS,
135	ITLB_REAL_MISS_EXITS,
136	ITLB_VIRT_MISS_EXITS,
137	DTLB_REAL_MISS_EXITS,
138	DTLB_VIRT_MISS_EXITS,
139	SYSCALL_EXITS,
140	ISI_EXITS,
141	DSI_EXITS,
142	EMULATED_INST_EXITS,
143	EMULATED_MTMSRWE_EXITS,
144	EMULATED_WRTEE_EXITS,
145	EMULATED_MTSPR_EXITS,
146	EMULATED_MFSPR_EXITS,
147	EMULATED_MTMSR_EXITS,
148	EMULATED_MFMSR_EXITS,
149	EMULATED_TLBSX_EXITS,
150	EMULATED_TLBWE_EXITS,
151	EMULATED_RFI_EXITS,
152	EMULATED_RFCI_EXITS,
153	EMULATED_RFDI_EXITS,
154	DEC_EXITS,
155	EXT_INTR_EXITS,
156	HALT_WAKEUP,
157	USR_PR_INST,
158	FP_UNAVAIL,
159	DEBUG_EXITS,
160	TIMEINGUEST,
161	DBELL_EXITS,
162	GDBELL_EXITS,
163	__NUMBER_OF_KVM_EXIT_TYPES
164};
165
166/* allow access to big endian 32bit upper/lower parts and 64bit var */
167struct kvmppc_exit_timing {
168	union {
169		u64 tv64;
170		struct {
171			u32 tbu, tbl;
172		} tv32;
173	};
174};
175
176struct kvmppc_pginfo {
177	unsigned long pfn;
178	atomic_t refcnt;
179};
180
181struct kvmppc_spapr_tce_iommu_table {
182	struct rcu_head rcu;
183	struct list_head next;
184	struct iommu_table *tbl;
185	struct kref kref;
186};
187
188#define TCES_PER_PAGE	(PAGE_SIZE / sizeof(u64))
189
190struct kvmppc_spapr_tce_table {
191	struct list_head list;
192	struct kvm *kvm;
193	u64 liobn;
194	struct rcu_head rcu;
195	u32 page_shift;
196	u64 offset;		/* in pages */
197	u64 size;		/* window size in pages */
198	struct list_head iommu_tables;
199	struct mutex alloc_lock;
200	struct page *pages[];
201};
202
203/* XICS components, defined in book3s_xics.c */
204struct kvmppc_xics;
205struct kvmppc_icp;
206extern struct kvm_device_ops kvm_xics_ops;
207
208/* XIVE components, defined in book3s_xive.c */
209struct kvmppc_xive;
210struct kvmppc_xive_vcpu;
211extern struct kvm_device_ops kvm_xive_ops;
212extern struct kvm_device_ops kvm_xive_native_ops;
213
214struct kvmppc_passthru_irqmap;
215
216/*
217 * The reverse mapping array has one entry for each HPTE,
218 * which stores the guest's view of the second word of the HPTE
219 * (including the guest physical address of the mapping),
220 * plus forward and backward pointers in a doubly-linked ring
221 * of HPTEs that map the same host page.  The pointers in this
222 * ring are 32-bit HPTE indexes, to save space.
223 */
224struct revmap_entry {
225	unsigned long guest_rpte;
226	unsigned int forw, back;
227};
228
229/*
230 * The rmap array of size number of guest pages is allocated for each memslot.
231 * This array is used to store usage specific information about the guest page.
232 * Below are the encodings of the various possible usage types.
233 */
234/* Free bits which can be used to define a new usage */
235#define KVMPPC_RMAP_TYPE_MASK	0xff00000000000000
236#define KVMPPC_RMAP_NESTED	0xc000000000000000	/* Nested rmap array */
237#define KVMPPC_RMAP_HPT		0x0100000000000000	/* HPT guest */
238
239/*
240 * rmap usage definition for a hash page table (hpt) guest:
241 * 0x0000080000000000	Lock bit
242 * 0x0000018000000000	RC bits
243 * 0x0000000100000000	Present bit
244 * 0x00000000ffffffff	HPT index bits
245 * The bottom 32 bits are the index in the guest HPT of a HPTE that points to
246 * the page.
247 */
248#define KVMPPC_RMAP_LOCK_BIT	43
249#define KVMPPC_RMAP_RC_SHIFT	32
250#define KVMPPC_RMAP_REFERENCED	(HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)
251#define KVMPPC_RMAP_PRESENT	0x100000000ul
252#define KVMPPC_RMAP_INDEX	0xfffffffful
253
254struct kvm_arch_memory_slot {
255#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
256	unsigned long *rmap;
257#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
258};
259
260struct kvm_hpt_info {
261	/* Host virtual (linear mapping) address of guest HPT */
262	unsigned long virt;
263	/* Array of reverse mapping entries for each guest HPTE */
264	struct revmap_entry *rev;
265	/* Guest HPT size is 2**(order) bytes */
266	u32 order;
267	/* 1 if HPT allocated with CMA, 0 otherwise */
268	int cma;
269};
270
271struct kvm_resize_hpt;
272
273/* Flag values for kvm_arch.secure_guest */
274#define KVMPPC_SECURE_INIT_START 0x1 /* H_SVM_INIT_START has been called */
275#define KVMPPC_SECURE_INIT_DONE  0x2 /* H_SVM_INIT_DONE completed */
276#define KVMPPC_SECURE_INIT_ABORT 0x4 /* H_SVM_INIT_ABORT issued */
277
278struct 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	u8 radix;
298	u8 fwnmi_enabled;
299	u8 secure_guest;
300	u8 svm_enabled;
301	bool nested_enable;
302	bool dawr1_enabled;
303	pgd_t *pgtable;
304	u64 process_table;
305	struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */
306#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
307#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
308	struct mutex hpt_mutex;
309#endif
310#ifdef CONFIG_PPC_BOOK3S_64
311	struct list_head spapr_tce_tables;
312	struct list_head rtas_tokens;
313	struct mutex rtas_token_lock;
314	DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
315#endif
316#ifdef CONFIG_KVM_MPIC
317	struct openpic *mpic;
318#endif
319#ifdef CONFIG_KVM_XICS
320	struct kvmppc_xics *xics;
321	struct kvmppc_xics *xics_device;
322	struct kvmppc_xive *xive;    /* Current XIVE device in use */
323	struct {
324		struct kvmppc_xive *native;
325		struct kvmppc_xive *xics_on_xive;
326	} xive_devices;
327	struct kvmppc_passthru_irqmap *pimap;
328#endif
329	struct kvmppc_ops *kvm_ops;
330#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
331	struct mutex uvmem_lock;
332	struct list_head uvmem_pfns;
333	struct mutex mmu_setup_lock;	/* nests inside vcpu mutexes */
334	u64 l1_ptcr;
335	struct idr kvm_nested_guest_idr;
336	/* This array can grow quite large, keep it at the end */
337	struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
338#endif
339};
340
341#define VCORE_ENTRY_MAP(vc)	((vc)->entry_exit_map & 0xff)
342#define VCORE_EXIT_MAP(vc)	((vc)->entry_exit_map >> 8)
343#define VCORE_IS_EXITING(vc)	(VCORE_EXIT_MAP(vc) != 0)
344
345/* This bit is used when a vcore exit is triggered from outside the vcore */
346#define VCORE_EXIT_REQ		0x10000
347
348/*
349 * Values for vcore_state.
350 * Note that these are arranged such that lower values
351 * (< VCORE_SLEEPING) don't require stolen time accounting
352 * on load/unload, and higher values do.
353 */
354#define VCORE_INACTIVE	0
355#define VCORE_PREEMPT	1
356#define VCORE_PIGGYBACK	2
357#define VCORE_SLEEPING	3
358#define VCORE_RUNNING	4
359#define VCORE_EXITING	5
360#define VCORE_POLLING	6
361
362/*
363 * Struct used to manage memory for a virtual processor area
364 * registered by a PAPR guest.  There are three types of area
365 * that a guest can register.
366 */
367struct kvmppc_vpa {
368	unsigned long gpa;	/* Current guest phys addr */
369	void *pinned_addr;	/* Address in kernel linear mapping */
370	void *pinned_end;	/* End of region */
371	unsigned long next_gpa;	/* Guest phys addr for update */
372	unsigned long len;	/* Number of bytes required */
373	u8 update_pending;	/* 1 => update pinned_addr from next_gpa */
374	bool dirty;		/* true => area has been modified by kernel */
375};
376
377struct kvmppc_pte {
378	ulong eaddr;
379	u64 vpage;
380	ulong raddr;
381	bool may_read		: 1;
382	bool may_write		: 1;
383	bool may_execute	: 1;
384	unsigned long wimg;
385	unsigned long rc;
386	u8 page_size;		/* MMU_PAGE_xxx */
387	u8 page_shift;
388};
389
390struct kvmppc_mmu {
391	/* book3s_64 only */
392	void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
393	u64  (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
394	u64  (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
395	int  (*slbfee)(struct kvm_vcpu *vcpu, gva_t eaddr, ulong *ret_slb);
396	void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
397	void (*slbia)(struct kvm_vcpu *vcpu);
398	/* book3s */
399	void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
400	u32  (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
401	int  (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,
402		      struct kvmppc_pte *pte, bool data, bool iswrite);
403	void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
404	int  (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
405	u64  (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
406	bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
407};
408
409struct kvmppc_slb {
410	u64 esid;
411	u64 vsid;
412	u64 orige;
413	u64 origv;
414	bool valid	: 1;
415	bool Ks		: 1;
416	bool Kp		: 1;
417	bool nx		: 1;
418	bool large	: 1;	/* PTEs are 16MB */
419	bool tb		: 1;	/* 1TB segment */
420	bool class	: 1;
421	u8 base_page_size;	/* MMU_PAGE_xxx */
422};
423
424/* Struct used to accumulate timing information in HV real mode code */
425struct kvmhv_tb_accumulator {
426	u64	seqcount;	/* used to synchronize access, also count * 2 */
427	u64	tb_total;	/* total time in timebase ticks */
428	u64	tb_min;		/* min time */
429	u64	tb_max;		/* max time */
430};
431
432#ifdef CONFIG_PPC_BOOK3S_64
433struct kvmppc_irq_map {
434	u32	r_hwirq;
435	u32	v_hwirq;
436	struct irq_desc *desc;
437};
438
439#define	KVMPPC_PIRQ_MAPPED	1024
440struct kvmppc_passthru_irqmap {
441	int n_mapped;
442	struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED];
443};
444#endif
445
446# ifdef CONFIG_PPC_E500
447#define KVMPPC_BOOKE_IAC_NUM	2
448#define KVMPPC_BOOKE_DAC_NUM	2
449# else
450#define KVMPPC_BOOKE_IAC_NUM	4
451#define KVMPPC_BOOKE_DAC_NUM	2
452# endif
453#define KVMPPC_BOOKE_MAX_IAC	4
454#define KVMPPC_BOOKE_MAX_DAC	2
455
456/* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
457#define KVMPPC_EPR_NONE		0 /* EPR not supported */
458#define KVMPPC_EPR_USER		1 /* exit to userspace to fill EPR */
459#define KVMPPC_EPR_KERNEL	2 /* in-kernel irqchip */
460
461#define KVMPPC_IRQ_DEFAULT	0
462#define KVMPPC_IRQ_MPIC		1
463#define KVMPPC_IRQ_XICS		2 /* Includes a XIVE option */
464#define KVMPPC_IRQ_XIVE		3 /* XIVE native exploitation mode */
465
466#define MMIO_HPTE_CACHE_SIZE	4
467
468struct mmio_hpte_cache_entry {
469	unsigned long hpte_v;
470	unsigned long hpte_r;
471	unsigned long rpte;
472	unsigned long pte_index;
473	unsigned long eaddr;
474	unsigned long slb_v;
475	long mmio_update;
476	unsigned int slb_base_pshift;
477};
478
479struct mmio_hpte_cache {
480	struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE];
481	unsigned int index;
482};
483
484#define KVMPPC_VSX_COPY_NONE		0
485#define KVMPPC_VSX_COPY_WORD		1
486#define KVMPPC_VSX_COPY_DWORD		2
487#define KVMPPC_VSX_COPY_DWORD_LOAD_DUMP	3
488#define KVMPPC_VSX_COPY_WORD_LOAD_DUMP	4
489
490#define KVMPPC_VMX_COPY_BYTE		8
491#define KVMPPC_VMX_COPY_HWORD		9
492#define KVMPPC_VMX_COPY_WORD		10
493#define KVMPPC_VMX_COPY_DWORD		11
494
495struct openpic;
496
497/* W0 and W1 of a XIVE thread management context */
498union xive_tma_w01 {
499	struct {
500		u8	nsr;
501		u8	cppr;
502		u8	ipb;
503		u8	lsmfb;
504		u8	ack;
505		u8	inc;
506		u8	age;
507		u8	pipr;
508	};
509	__be64 w01;
510};
511
512struct kvm_vcpu_arch {
513	ulong host_stack;
514	u32 host_pid;
515#ifdef CONFIG_PPC_BOOK3S
516	struct kvmppc_slb slb[64];
517	int slb_max;		/* 1 + index of last valid entry in slb[] */
518	int slb_nr;		/* total number of entries in SLB */
519	struct kvmppc_mmu mmu;
520	struct kvmppc_vcpu_book3s *book3s;
521#endif
522#ifdef CONFIG_PPC_BOOK3S_32
523	struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
524#endif
525
526	/*
527	 * This is passed along to the HV via H_ENTER_NESTED. Align to
528	 * prevent it crossing a real 4K page.
529	 */
530	struct pt_regs regs __aligned(512);
531
532	struct thread_fp_state fp;
533
534#ifdef CONFIG_SPE
535	ulong evr[32];
536	ulong spefscr;
537	ulong host_spefscr;
538	u64 acc;
539#endif
540#ifdef CONFIG_ALTIVEC
541	struct thread_vr_state vr;
542#endif
543
544#ifdef CONFIG_KVM_BOOKE_HV
545	u32 host_mas4;
546	u32 host_mas6;
547	u32 shadow_epcr;
548	u32 shadow_msrp;
549	u32 eplc;
550	u32 epsc;
551	u32 oldpir;
552#endif
553
554#if defined(CONFIG_BOOKE)
555#if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
556	u32 epcr;
557#endif
558#endif
559
560#ifdef CONFIG_PPC_BOOK3S
561	/* For Gekko paired singles */
562	u32 qpr[32];
563#endif
564
565#ifdef CONFIG_PPC_BOOK3S
566	ulong tar;
567#endif
568
569#ifdef CONFIG_PPC_BOOK3S
570	ulong hflags;
571	ulong guest_owned_ext;
572	ulong purr;
573	ulong spurr;
574	ulong ic;
575	ulong dscr;
576	ulong amr;
577	ulong uamor;
578	ulong iamr;
579	u32 ctrl;
580	u32 dabrx;
581	ulong dabr;
582	ulong dawr0;
583	ulong dawrx0;
584	ulong dawr1;
585	ulong dawrx1;
586	ulong ciabr;
587	ulong cfar;
588	ulong ppr;
589	u32 pspb;
590	u8 load_ebb;
591#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
592	u8 load_tm;
593#endif
594	ulong fscr;
595	ulong shadow_fscr;
596	ulong ebbhr;
597	ulong ebbrr;
598	ulong bescr;
599	ulong csigr;
600	ulong tacr;
601	ulong tcscr;
602	ulong acop;
603	ulong wort;
604	ulong tid;
605	ulong psscr;
606	ulong hfscr;
607	ulong shadow_srr1;
608#endif
609	u32 vrsave; /* also USPRG0 */
610	u32 mmucr;
611	/* shadow_msr is unused for BookE HV */
612	ulong shadow_msr;
613	ulong csrr0;
614	ulong csrr1;
615	ulong dsrr0;
616	ulong dsrr1;
617	ulong mcsrr0;
618	ulong mcsrr1;
619	ulong mcsr;
620	ulong dec;
621#ifdef CONFIG_BOOKE
622	u32 decar;
623#endif
624	/* Time base value when we entered the guest */
625	u64 entry_tb;
626	u64 entry_vtb;
627	u64 entry_ic;
628	u32 tcr;
629	ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
630	u32 ivor[64];
631	ulong ivpr;
632	u32 pvr;
633
634	u32 shadow_pid;
635	u32 shadow_pid1;
636	u32 pid;
637	u32 swap_pid;
638
639	u32 ccr0;
640	u32 ccr1;
641	u32 dbsr;
642
643	u64 mmcr[4];	/* MMCR0, MMCR1, MMCR2, MMCR3 */
644	u64 mmcra;
645	u64 mmcrs;
646	u32 pmc[8];
647	u32 spmc[2];
648	u64 siar;
649	u64 sdar;
650	u64 sier[3];
651#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
652	u64 tfhar;
653	u64 texasr;
654	u64 tfiar;
655	u64 orig_texasr;
656
657	u32 cr_tm;
658	u64 xer_tm;
659	u64 lr_tm;
660	u64 ctr_tm;
661	u64 amr_tm;
662	u64 ppr_tm;
663	u64 dscr_tm;
664	u64 tar_tm;
665
666	ulong gpr_tm[32];
667
668	struct thread_fp_state fp_tm;
669
670	struct thread_vr_state vr_tm;
671	u32 vrsave_tm; /* also USPRG0 */
672#endif
673
674#ifdef CONFIG_KVM_EXIT_TIMING
675	struct mutex exit_timing_lock;
676	struct kvmppc_exit_timing timing_exit;
677	struct kvmppc_exit_timing timing_last_enter;
678	u32 last_exit_type;
679	u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
680	u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
681	u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
682	u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
683	u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
684	u64 timing_last_exit;
685#endif
686
687#ifdef CONFIG_PPC_BOOK3S
688	ulong fault_dar;
689	u32 fault_dsisr;
690	unsigned long intr_msr;
691	/*
692	 * POWER9 and later: fault_gpa contains the guest real address of page
693	 * fault for a radix guest, or segment descriptor (equivalent to result
694	 * from slbmfev of SLB entry that translated the EA) for hash guests.
695	 */
696	ulong fault_gpa;
697#endif
698
699#ifdef CONFIG_BOOKE
700	ulong fault_dear;
701	ulong fault_esr;
702	ulong queued_dear;
703	ulong queued_esr;
704	spinlock_t wdt_lock;
705	struct timer_list wdt_timer;
706	u32 tlbcfg[4];
707	u32 tlbps[4];
708	u32 mmucfg;
709	u32 eptcfg;
710	u32 epr;
711	u64 sprg9;
712	u32 pwrmgtcr0;
713	u32 crit_save;
714	/* guest debug registers*/
715	struct debug_reg dbg_reg;
716#endif
717	gpa_t paddr_accessed;
718	gva_t vaddr_accessed;
719	pgd_t *pgdir;
720
721	u16 io_gpr; /* GPR used as IO source/target */
722	u8 mmio_host_swabbed;
723	u8 mmio_sign_extend;
724	/* conversion between single and double precision */
725	u8 mmio_sp64_extend;
726	/*
727	 * Number of simulations for vsx.
728	 * If we use 2*8bytes to simulate 1*16bytes,
729	 * then the number should be 2 and
730	 * mmio_copy_type=KVMPPC_VSX_COPY_DWORD.
731	 * If we use 4*4bytes to simulate 1*16bytes,
732	 * the number should be 4 and
733	 * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD.
734	 */
735	u8 mmio_vsx_copy_nums;
736	u8 mmio_vsx_offset;
737	u8 mmio_vmx_copy_nums;
738	u8 mmio_vmx_offset;
739	u8 mmio_copy_type;
740	u8 osi_needed;
741	u8 osi_enabled;
742	u8 papr_enabled;
743	u8 watchdog_enabled;
744	u8 sane;
745	u8 cpu_type;
746	u8 hcall_needed;
747	u8 epr_flags; /* KVMPPC_EPR_xxx */
748	u8 epr_needed;
749	u8 external_oneshot;	/* clear external irq after delivery */
750
751	u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
752
753	struct hrtimer dec_timer;
754	u64 dec_jiffies;
755	u64 dec_expires;	/* Relative to guest timebase. */
756	unsigned long pending_exceptions;
757	u8 ceded;
758	u8 prodded;
759	u8 doorbell_request;
760	u8 irq_pending; /* Used by XIVE to signal pending guest irqs */
761	unsigned long last_inst;
762
763	struct rcuwait wait;
764	struct rcuwait *waitp;
765	struct kvmppc_vcore *vcore;
766	int ret;
767	int trap;
768	int state;
769	int ptid;
770	int thread_cpu;
771	int prev_cpu;
772	bool timer_running;
773	wait_queue_head_t cpu_run;
774	struct machine_check_event mce_evt; /* Valid if trap == 0x200 */
775
776	struct kvm_vcpu_arch_shared *shared;
777#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
778	bool shared_big_endian;
779#endif
780	unsigned long magic_page_pa; /* phys addr to map the magic page to */
781	unsigned long magic_page_ea; /* effect. addr to map the magic page to */
782	bool disable_kernel_nx;
783
784	int irq_type;		/* one of KVM_IRQ_* */
785	int irq_cpu_id;
786	struct openpic *mpic;	/* KVM_IRQ_MPIC */
787#ifdef CONFIG_KVM_XICS
788	struct kvmppc_icp *icp; /* XICS presentation controller */
789	struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */
790	__be32 xive_cam_word;    /* Cooked W2 in proper endian with valid bit */
791	u8 xive_pushed;		 /* Is the VP pushed on the physical CPU ? */
792	u8 xive_esc_on;		 /* Is the escalation irq enabled ? */
793	union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */
794	u64 xive_esc_raddr;	 /* Escalation interrupt ESB real addr */
795	u64 xive_esc_vaddr;	 /* Escalation interrupt ESB virt addr */
796#endif
797
798#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
799	struct kvm_vcpu_arch_shared shregs;
800
801	struct mmio_hpte_cache mmio_cache;
802	unsigned long pgfault_addr;
803	long pgfault_index;
804	unsigned long pgfault_hpte[2];
805	struct mmio_hpte_cache_entry *pgfault_cache;
806
807	struct task_struct *run_task;
808
809	spinlock_t vpa_update_lock;
810	struct kvmppc_vpa vpa;
811	struct kvmppc_vpa dtl;
812	struct dtl_entry *dtl_ptr;
813	unsigned long dtl_index;
814	u64 stolen_logged;
815	struct kvmppc_vpa slb_shadow;
816
817	spinlock_t tbacct_lock;
818	u64 busy_stolen;
819	u64 busy_preempt;
820
821	u64 emul_inst;
822
823	u32 online;
824
825	u64 hfscr_permitted;	/* A mask of permitted HFSCR facilities */
826
827	/* For support of nested guests */
828	struct kvm_nested_guest *nested;
829	u64 nested_hfscr;	/* HFSCR that the L1 requested for the nested guest */
830	u32 nested_vcpu_id;
831	gpa_t nested_io_gpr;
832#endif
833
834#ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
835	struct kvmhv_tb_accumulator *cur_activity;	/* What we're timing */
836	u64	cur_tb_start;			/* when it started */
837#ifdef CONFIG_KVM_BOOK3S_HV_P9_TIMING
838	struct kvmhv_tb_accumulator vcpu_entry;
839	struct kvmhv_tb_accumulator vcpu_exit;
840	struct kvmhv_tb_accumulator in_guest;
841	struct kvmhv_tb_accumulator hcall;
842	struct kvmhv_tb_accumulator pg_fault;
843	struct kvmhv_tb_accumulator guest_entry;
844	struct kvmhv_tb_accumulator guest_exit;
845#else
846	struct kvmhv_tb_accumulator rm_entry;	/* real-mode entry code */
847	struct kvmhv_tb_accumulator rm_intr;	/* real-mode intr handling */
848	struct kvmhv_tb_accumulator rm_exit;	/* real-mode exit code */
849	struct kvmhv_tb_accumulator guest_time;	/* guest execution */
850	struct kvmhv_tb_accumulator cede_time;	/* time napping inside guest */
851#endif
852#endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
853};
854
855#define VCPU_FPR(vcpu, i)	(vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
856#define VCPU_VSX_FPR(vcpu, i, j)	((vcpu)->arch.fp.fpr[i][j])
857#define VCPU_VSX_VR(vcpu, i)		((vcpu)->arch.vr.vr[i])
858
859/* Values for vcpu->arch.state */
860#define KVMPPC_VCPU_NOTREADY		0
861#define KVMPPC_VCPU_RUNNABLE		1
862#define KVMPPC_VCPU_BUSY_IN_HOST	2
863
864/* Values for vcpu->arch.io_gpr */
865#define KVM_MMIO_REG_MASK	0x003f
866#define KVM_MMIO_REG_EXT_MASK	0xffc0
867#define KVM_MMIO_REG_GPR	0x0000
868#define KVM_MMIO_REG_FPR	0x0040
869#define KVM_MMIO_REG_QPR	0x0080
870#define KVM_MMIO_REG_FQPR	0x00c0
871#define KVM_MMIO_REG_VSX	0x0100
872#define KVM_MMIO_REG_VMX	0x0180
873#define KVM_MMIO_REG_NESTED_GPR	0xffc0
874
875
876#define __KVM_HAVE_ARCH_WQP
877#define __KVM_HAVE_CREATE_DEVICE
878
879static inline void kvm_arch_sync_events(struct kvm *kvm) {}
880static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {}
881static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
882static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
883static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
884static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
885
886#endif /* __POWERPC_KVM_HOST_H__ */
887