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