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