1/*
2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License, version 2, as
4 * published by the Free Software Foundation.
5 *
6 * This program is distributed in the hope that it will be useful,
7 * but WITHOUT ANY WARRANTY; without even the implied warranty of
8 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
9 * GNU General Public License for more details.
10 *
11 * You should have received a copy of the GNU General Public License
12 * along with this program; if not, write to the Free Software
13 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
14 *
15 * Copyright IBM Corp. 2007
16 *
17 * Authors: Hollis Blanchard <hollisb@us.ibm.com>
18 */
19
20#ifndef __POWERPC_KVM_HOST_H__
21#define __POWERPC_KVM_HOST_H__
22
23#include <linux/mutex.h>
24#include <linux/hrtimer.h>
25#include <linux/interrupt.h>
26#include <linux/types.h>
27#include <linux/kvm_types.h>
28#include <linux/threads.h>
29#include <linux/spinlock.h>
30#include <linux/kvm_para.h>
31#include <linux/list.h>
32#include <linux/atomic.h>
33#include <asm/kvm_asm.h>
34#include <asm/processor.h>
35#include <asm/page.h>
36#include <asm/cacheflush.h>
37#include <asm/hvcall.h>
38
39#define KVM_MAX_VCPUS		NR_CPUS
40#define KVM_MAX_VCORES		NR_CPUS
41#define KVM_USER_MEM_SLOTS 32
42#define KVM_MEM_SLOTS_NUM KVM_USER_MEM_SLOTS
43
44#ifdef CONFIG_KVM_MMIO
45#define KVM_COALESCED_MMIO_PAGE_OFFSET 1
46#endif
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#include <linux/mmu_notifier.h>
53
54#define KVM_ARCH_WANT_MMU_NOTIFIER
55
56extern int kvm_unmap_hva(struct kvm *kvm, unsigned long hva);
57extern int kvm_unmap_hva_range(struct kvm *kvm,
58			       unsigned long start, unsigned long end);
59extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
60extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
61extern void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
62
63static inline void kvm_arch_mmu_notifier_invalidate_page(struct kvm *kvm,
64							 unsigned long address)
65{
66}
67
68#define HPTEG_CACHE_NUM			(1 << 15)
69#define HPTEG_HASH_BITS_PTE		13
70#define HPTEG_HASH_BITS_PTE_LONG	12
71#define HPTEG_HASH_BITS_VPTE		13
72#define HPTEG_HASH_BITS_VPTE_LONG	5
73#define HPTEG_HASH_BITS_VPTE_64K	11
74#define HPTEG_HASH_NUM_PTE		(1 << HPTEG_HASH_BITS_PTE)
75#define HPTEG_HASH_NUM_PTE_LONG		(1 << HPTEG_HASH_BITS_PTE_LONG)
76#define HPTEG_HASH_NUM_VPTE		(1 << HPTEG_HASH_BITS_VPTE)
77#define HPTEG_HASH_NUM_VPTE_LONG	(1 << HPTEG_HASH_BITS_VPTE_LONG)
78#define HPTEG_HASH_NUM_VPTE_64K		(1 << HPTEG_HASH_BITS_VPTE_64K)
79
80/* Physical Address Mask - allowed range of real mode RAM access */
81#define KVM_PAM			0x0fffffffffffffffULL
82
83struct lppaca;
84struct slb_shadow;
85struct dtl_entry;
86
87struct kvmppc_vcpu_book3s;
88struct kvmppc_book3s_shadow_vcpu;
89
90struct kvm_vm_stat {
91	u32 remote_tlb_flush;
92};
93
94struct kvm_vcpu_stat {
95	u32 sum_exits;
96	u32 mmio_exits;
97	u32 signal_exits;
98	u32 light_exits;
99	/* Account for special types of light exits: */
100	u32 itlb_real_miss_exits;
101	u32 itlb_virt_miss_exits;
102	u32 dtlb_real_miss_exits;
103	u32 dtlb_virt_miss_exits;
104	u32 syscall_exits;
105	u32 isi_exits;
106	u32 dsi_exits;
107	u32 emulated_inst_exits;
108	u32 dec_exits;
109	u32 ext_intr_exits;
110	u32 halt_successful_poll;
111	u32 halt_wakeup;
112	u32 dbell_exits;
113	u32 gdbell_exits;
114	u32 ld;
115	u32 st;
116#ifdef CONFIG_PPC_BOOK3S
117	u32 pf_storage;
118	u32 pf_instruc;
119	u32 sp_storage;
120	u32 sp_instruc;
121	u32 queue_intr;
122	u32 ld_slow;
123	u32 st_slow;
124#endif
125};
126
127enum kvm_exit_types {
128	MMIO_EXITS,
129	SIGNAL_EXITS,
130	ITLB_REAL_MISS_EXITS,
131	ITLB_VIRT_MISS_EXITS,
132	DTLB_REAL_MISS_EXITS,
133	DTLB_VIRT_MISS_EXITS,
134	SYSCALL_EXITS,
135	ISI_EXITS,
136	DSI_EXITS,
137	EMULATED_INST_EXITS,
138	EMULATED_MTMSRWE_EXITS,
139	EMULATED_WRTEE_EXITS,
140	EMULATED_MTSPR_EXITS,
141	EMULATED_MFSPR_EXITS,
142	EMULATED_MTMSR_EXITS,
143	EMULATED_MFMSR_EXITS,
144	EMULATED_TLBSX_EXITS,
145	EMULATED_TLBWE_EXITS,
146	EMULATED_RFI_EXITS,
147	EMULATED_RFCI_EXITS,
148	EMULATED_RFDI_EXITS,
149	DEC_EXITS,
150	EXT_INTR_EXITS,
151	HALT_WAKEUP,
152	USR_PR_INST,
153	FP_UNAVAIL,
154	DEBUG_EXITS,
155	TIMEINGUEST,
156	DBELL_EXITS,
157	GDBELL_EXITS,
158	__NUMBER_OF_KVM_EXIT_TYPES
159};
160
161/* allow access to big endian 32bit upper/lower parts and 64bit var */
162struct kvmppc_exit_timing {
163	union {
164		u64 tv64;
165		struct {
166			u32 tbu, tbl;
167		} tv32;
168	};
169};
170
171struct kvmppc_pginfo {
172	unsigned long pfn;
173	atomic_t refcnt;
174};
175
176struct kvmppc_spapr_tce_table {
177	struct list_head list;
178	struct kvm *kvm;
179	u64 liobn;
180	u32 window_size;
181	struct page *pages[0];
182};
183
184/* XICS components, defined in book3s_xics.c */
185struct kvmppc_xics;
186struct kvmppc_icp;
187
188/*
189 * The reverse mapping array has one entry for each HPTE,
190 * which stores the guest's view of the second word of the HPTE
191 * (including the guest physical address of the mapping),
192 * plus forward and backward pointers in a doubly-linked ring
193 * of HPTEs that map the same host page.  The pointers in this
194 * ring are 32-bit HPTE indexes, to save space.
195 */
196struct revmap_entry {
197	unsigned long guest_rpte;
198	unsigned int forw, back;
199};
200
201/*
202 * We use the top bit of each memslot->arch.rmap entry as a lock bit,
203 * and bit 32 as a present flag.  The bottom 32 bits are the
204 * index in the guest HPT of a HPTE that points to the page.
205 */
206#define KVMPPC_RMAP_LOCK_BIT	63
207#define KVMPPC_RMAP_RC_SHIFT	32
208#define KVMPPC_RMAP_REFERENCED	(HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)
209#define KVMPPC_RMAP_CHANGED	(HPTE_R_C << KVMPPC_RMAP_RC_SHIFT)
210#define KVMPPC_RMAP_PRESENT	0x100000000ul
211#define KVMPPC_RMAP_INDEX	0xfffffffful
212
213struct kvm_arch_memory_slot {
214#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
215	unsigned long *rmap;
216#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
217};
218
219struct kvm_arch {
220	unsigned int lpid;
221#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
222	unsigned long hpt_virt;
223	struct revmap_entry *revmap;
224	unsigned int host_lpid;
225	unsigned long host_lpcr;
226	unsigned long sdr1;
227	unsigned long host_sdr1;
228	int tlbie_lock;
229	unsigned long lpcr;
230	unsigned long vrma_slb_v;
231	int hpte_setup_done;
232	u32 hpt_order;
233	atomic_t vcpus_running;
234	u32 online_vcores;
235	unsigned long hpt_npte;
236	unsigned long hpt_mask;
237	atomic_t hpte_mod_interest;
238	cpumask_t need_tlb_flush;
239	int hpt_cma_alloc;
240	struct dentry *debugfs_dir;
241	struct dentry *htab_dentry;
242#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
243#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
244	struct mutex hpt_mutex;
245#endif
246#ifdef CONFIG_PPC_BOOK3S_64
247	struct list_head spapr_tce_tables;
248	struct list_head rtas_tokens;
249	DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
250#endif
251#ifdef CONFIG_KVM_MPIC
252	struct openpic *mpic;
253#endif
254#ifdef CONFIG_KVM_XICS
255	struct kvmppc_xics *xics;
256#endif
257	struct kvmppc_ops *kvm_ops;
258#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
259	/* This array can grow quite large, keep it at the end */
260	struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
261#endif
262};
263
264/*
265 * Struct for a virtual core.
266 * Note: entry_exit_map combines a bitmap of threads that have entered
267 * in the bottom 8 bits and a bitmap of threads that have exited in the
268 * next 8 bits.  This is so that we can atomically set the entry bit
269 * iff the exit map is 0 without taking a lock.
270 */
271struct kvmppc_vcore {
272	int n_runnable;
273	int num_threads;
274	int entry_exit_map;
275	int napping_threads;
276	int first_vcpuid;
277	u16 pcpu;
278	u16 last_cpu;
279	u8 vcore_state;
280	u8 in_guest;
281	struct list_head runnable_threads;
282	spinlock_t lock;
283	wait_queue_head_t wq;
284	spinlock_t stoltb_lock;	/* protects stolen_tb and preempt_tb */
285	u64 stolen_tb;
286	u64 preempt_tb;
287	struct kvm_vcpu *runner;
288	struct kvm *kvm;
289	u64 tb_offset;		/* guest timebase - host timebase */
290	ulong lpcr;
291	u32 arch_compat;
292	ulong pcr;
293	ulong dpdes;		/* doorbell state (POWER8) */
294	void *mpp_buffer; /* Micro Partition Prefetch buffer */
295	bool mpp_buffer_is_valid;
296	ulong conferring_threads;
297};
298
299#define VCORE_ENTRY_MAP(vc)	((vc)->entry_exit_map & 0xff)
300#define VCORE_EXIT_MAP(vc)	((vc)->entry_exit_map >> 8)
301#define VCORE_IS_EXITING(vc)	(VCORE_EXIT_MAP(vc) != 0)
302
303/* Values for vcore_state */
304#define VCORE_INACTIVE	0
305#define VCORE_SLEEPING	1
306#define VCORE_PREEMPT	2
307#define VCORE_RUNNING	3
308#define VCORE_EXITING	4
309
310/*
311 * Struct used to manage memory for a virtual processor area
312 * registered by a PAPR guest.  There are three types of area
313 * that a guest can register.
314 */
315struct kvmppc_vpa {
316	unsigned long gpa;	/* Current guest phys addr */
317	void *pinned_addr;	/* Address in kernel linear mapping */
318	void *pinned_end;	/* End of region */
319	unsigned long next_gpa;	/* Guest phys addr for update */
320	unsigned long len;	/* Number of bytes required */
321	u8 update_pending;	/* 1 => update pinned_addr from next_gpa */
322	bool dirty;		/* true => area has been modified by kernel */
323};
324
325struct kvmppc_pte {
326	ulong eaddr;
327	u64 vpage;
328	ulong raddr;
329	bool may_read		: 1;
330	bool may_write		: 1;
331	bool may_execute	: 1;
332	u8 page_size;		/* MMU_PAGE_xxx */
333};
334
335struct kvmppc_mmu {
336	/* book3s_64 only */
337	void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
338	u64  (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
339	u64  (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
340	void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
341	void (*slbia)(struct kvm_vcpu *vcpu);
342	/* book3s */
343	void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
344	u32  (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
345	int  (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,
346		      struct kvmppc_pte *pte, bool data, bool iswrite);
347	void (*reset_msr)(struct kvm_vcpu *vcpu);
348	void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
349	int  (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
350	u64  (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
351	bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
352};
353
354struct kvmppc_slb {
355	u64 esid;
356	u64 vsid;
357	u64 orige;
358	u64 origv;
359	bool valid	: 1;
360	bool Ks		: 1;
361	bool Kp		: 1;
362	bool nx		: 1;
363	bool large	: 1;	/* PTEs are 16MB */
364	bool tb		: 1;	/* 1TB segment */
365	bool class	: 1;
366	u8 base_page_size;	/* MMU_PAGE_xxx */
367};
368
369/* Struct used to accumulate timing information in HV real mode code */
370struct kvmhv_tb_accumulator {
371	u64	seqcount;	/* used to synchronize access, also count * 2 */
372	u64	tb_total;	/* total time in timebase ticks */
373	u64	tb_min;		/* min time */
374	u64	tb_max;		/* max time */
375};
376
377# ifdef CONFIG_PPC_FSL_BOOK3E
378#define KVMPPC_BOOKE_IAC_NUM	2
379#define KVMPPC_BOOKE_DAC_NUM	2
380# else
381#define KVMPPC_BOOKE_IAC_NUM	4
382#define KVMPPC_BOOKE_DAC_NUM	2
383# endif
384#define KVMPPC_BOOKE_MAX_IAC	4
385#define KVMPPC_BOOKE_MAX_DAC	2
386
387/* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
388#define KVMPPC_EPR_NONE		0 /* EPR not supported */
389#define KVMPPC_EPR_USER		1 /* exit to userspace to fill EPR */
390#define KVMPPC_EPR_KERNEL	2 /* in-kernel irqchip */
391
392#define KVMPPC_IRQ_DEFAULT	0
393#define KVMPPC_IRQ_MPIC		1
394#define KVMPPC_IRQ_XICS		2
395
396struct openpic;
397
398struct kvm_vcpu_arch {
399	ulong host_stack;
400	u32 host_pid;
401#ifdef CONFIG_PPC_BOOK3S
402	struct kvmppc_slb slb[64];
403	int slb_max;		/* 1 + index of last valid entry in slb[] */
404	int slb_nr;		/* total number of entries in SLB */
405	struct kvmppc_mmu mmu;
406	struct kvmppc_vcpu_book3s *book3s;
407#endif
408#ifdef CONFIG_PPC_BOOK3S_32
409	struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
410#endif
411
412	ulong gpr[32];
413
414	struct thread_fp_state fp;
415
416#ifdef CONFIG_SPE
417	ulong evr[32];
418	ulong spefscr;
419	ulong host_spefscr;
420	u64 acc;
421#endif
422#ifdef CONFIG_ALTIVEC
423	struct thread_vr_state vr;
424#endif
425
426#ifdef CONFIG_KVM_BOOKE_HV
427	u32 host_mas4;
428	u32 host_mas6;
429	u32 shadow_epcr;
430	u32 shadow_msrp;
431	u32 eplc;
432	u32 epsc;
433	u32 oldpir;
434#endif
435
436#if defined(CONFIG_BOOKE)
437#if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
438	u32 epcr;
439#endif
440#endif
441
442#ifdef CONFIG_PPC_BOOK3S
443	/* For Gekko paired singles */
444	u32 qpr[32];
445#endif
446
447	ulong pc;
448	ulong ctr;
449	ulong lr;
450#ifdef CONFIG_PPC_BOOK3S
451	ulong tar;
452#endif
453
454	ulong xer;
455	u32 cr;
456
457#ifdef CONFIG_PPC_BOOK3S
458	ulong hflags;
459	ulong guest_owned_ext;
460	ulong purr;
461	ulong spurr;
462	ulong ic;
463	ulong vtb;
464	ulong dscr;
465	ulong amr;
466	ulong uamor;
467	ulong iamr;
468	u32 ctrl;
469	u32 dabrx;
470	ulong dabr;
471	ulong dawr;
472	ulong dawrx;
473	ulong ciabr;
474	ulong cfar;
475	ulong ppr;
476	ulong pspb;
477	ulong fscr;
478	ulong shadow_fscr;
479	ulong ebbhr;
480	ulong ebbrr;
481	ulong bescr;
482	ulong csigr;
483	ulong tacr;
484	ulong tcscr;
485	ulong acop;
486	ulong wort;
487	ulong shadow_srr1;
488#endif
489	u32 vrsave; /* also USPRG0 */
490	u32 mmucr;
491	/* shadow_msr is unused for BookE HV */
492	ulong shadow_msr;
493	ulong csrr0;
494	ulong csrr1;
495	ulong dsrr0;
496	ulong dsrr1;
497	ulong mcsrr0;
498	ulong mcsrr1;
499	ulong mcsr;
500	u32 dec;
501#ifdef CONFIG_BOOKE
502	u32 decar;
503#endif
504	/* Time base value when we entered the guest */
505	u64 entry_tb;
506	u64 entry_vtb;
507	u64 entry_ic;
508	u32 tcr;
509	ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
510	u32 ivor[64];
511	ulong ivpr;
512	u32 pvr;
513
514	u32 shadow_pid;
515	u32 shadow_pid1;
516	u32 pid;
517	u32 swap_pid;
518
519	u32 ccr0;
520	u32 ccr1;
521	u32 dbsr;
522
523	u64 mmcr[5];
524	u32 pmc[8];
525	u32 spmc[2];
526	u64 siar;
527	u64 sdar;
528	u64 sier;
529#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
530	u64 tfhar;
531	u64 texasr;
532	u64 tfiar;
533
534	u32 cr_tm;
535	u64 lr_tm;
536	u64 ctr_tm;
537	u64 amr_tm;
538	u64 ppr_tm;
539	u64 dscr_tm;
540	u64 tar_tm;
541
542	ulong gpr_tm[32];
543
544	struct thread_fp_state fp_tm;
545
546	struct thread_vr_state vr_tm;
547	u32 vrsave_tm; /* also USPRG0 */
548
549#endif
550
551#ifdef CONFIG_KVM_EXIT_TIMING
552	struct mutex exit_timing_lock;
553	struct kvmppc_exit_timing timing_exit;
554	struct kvmppc_exit_timing timing_last_enter;
555	u32 last_exit_type;
556	u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
557	u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
558	u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
559	u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
560	u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
561	u64 timing_last_exit;
562	struct dentry *debugfs_exit_timing;
563#endif
564
565#ifdef CONFIG_PPC_BOOK3S
566	ulong fault_dar;
567	u32 fault_dsisr;
568	unsigned long intr_msr;
569#endif
570
571#ifdef CONFIG_BOOKE
572	ulong fault_dear;
573	ulong fault_esr;
574	ulong queued_dear;
575	ulong queued_esr;
576	spinlock_t wdt_lock;
577	struct timer_list wdt_timer;
578	u32 tlbcfg[4];
579	u32 tlbps[4];
580	u32 mmucfg;
581	u32 eptcfg;
582	u32 epr;
583	u64 sprg9;
584	u32 pwrmgtcr0;
585	u32 crit_save;
586	/* guest debug registers*/
587	struct debug_reg dbg_reg;
588#endif
589	gpa_t paddr_accessed;
590	gva_t vaddr_accessed;
591	pgd_t *pgdir;
592
593	u8 io_gpr; /* GPR used as IO source/target */
594	u8 mmio_host_swabbed;
595	u8 mmio_sign_extend;
596	u8 osi_needed;
597	u8 osi_enabled;
598	u8 papr_enabled;
599	u8 watchdog_enabled;
600	u8 sane;
601	u8 cpu_type;
602	u8 hcall_needed;
603	u8 epr_flags; /* KVMPPC_EPR_xxx */
604	u8 epr_needed;
605
606	u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
607
608	struct hrtimer dec_timer;
609	u64 dec_jiffies;
610	u64 dec_expires;
611	unsigned long pending_exceptions;
612	u8 ceded;
613	u8 prodded;
614	u32 last_inst;
615
616	wait_queue_head_t *wqp;
617	struct kvmppc_vcore *vcore;
618	int ret;
619	int trap;
620	int state;
621	int ptid;
622	bool timer_running;
623	wait_queue_head_t cpu_run;
624
625	struct kvm_vcpu_arch_shared *shared;
626#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
627	bool shared_big_endian;
628#endif
629	unsigned long magic_page_pa; /* phys addr to map the magic page to */
630	unsigned long magic_page_ea; /* effect. addr to map the magic page to */
631	bool disable_kernel_nx;
632
633	int irq_type;		/* one of KVM_IRQ_* */
634	int irq_cpu_id;
635	struct openpic *mpic;	/* KVM_IRQ_MPIC */
636#ifdef CONFIG_KVM_XICS
637	struct kvmppc_icp *icp; /* XICS presentation controller */
638#endif
639
640#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
641	struct kvm_vcpu_arch_shared shregs;
642
643	unsigned long pgfault_addr;
644	long pgfault_index;
645	unsigned long pgfault_hpte[2];
646
647	struct list_head run_list;
648	struct task_struct *run_task;
649	struct kvm_run *kvm_run;
650
651	spinlock_t vpa_update_lock;
652	struct kvmppc_vpa vpa;
653	struct kvmppc_vpa dtl;
654	struct dtl_entry *dtl_ptr;
655	unsigned long dtl_index;
656	u64 stolen_logged;
657	struct kvmppc_vpa slb_shadow;
658
659	spinlock_t tbacct_lock;
660	u64 busy_stolen;
661	u64 busy_preempt;
662
663	u32 emul_inst;
664#endif
665
666#ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
667	struct kvmhv_tb_accumulator *cur_activity;	/* What we're timing */
668	u64	cur_tb_start;			/* when it started */
669	struct kvmhv_tb_accumulator rm_entry;	/* real-mode entry code */
670	struct kvmhv_tb_accumulator rm_intr;	/* real-mode intr handling */
671	struct kvmhv_tb_accumulator rm_exit;	/* real-mode exit code */
672	struct kvmhv_tb_accumulator guest_time;	/* guest execution */
673	struct kvmhv_tb_accumulator cede_time;	/* time napping inside guest */
674
675	struct dentry *debugfs_dir;
676	struct dentry *debugfs_timings;
677#endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
678};
679
680#define VCPU_FPR(vcpu, i)	(vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
681
682/* Values for vcpu->arch.state */
683#define KVMPPC_VCPU_NOTREADY		0
684#define KVMPPC_VCPU_RUNNABLE		1
685#define KVMPPC_VCPU_BUSY_IN_HOST	2
686
687/* Values for vcpu->arch.io_gpr */
688#define KVM_MMIO_REG_MASK	0x001f
689#define KVM_MMIO_REG_EXT_MASK	0xffe0
690#define KVM_MMIO_REG_GPR	0x0000
691#define KVM_MMIO_REG_FPR	0x0020
692#define KVM_MMIO_REG_QPR	0x0040
693#define KVM_MMIO_REG_FQPR	0x0060
694
695#define __KVM_HAVE_ARCH_WQP
696#define __KVM_HAVE_CREATE_DEVICE
697
698static inline void kvm_arch_hardware_disable(void) {}
699static inline void kvm_arch_hardware_unsetup(void) {}
700static inline void kvm_arch_sync_events(struct kvm *kvm) {}
701static inline void kvm_arch_memslots_updated(struct kvm *kvm) {}
702static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
703static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
704static inline void kvm_arch_exit(void) {}
705
706#endif /* __POWERPC_KVM_HOST_H__ */
707