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_MAX_VCPUS NR_CPUS
30 #define KVM_MAX_VCORES NR_CPUS
31 #define KVM_USER_MEM_SLOTS 512
32
33 #include <asm/cputhreads.h>
34
35 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
36 #include <asm/kvm_book3s_asm.h> /* for MAX_SMT_THREADS */
37 #define KVM_MAX_VCPU_ID (MAX_SMT_THREADS * KVM_MAX_VCORES)
38 #define KVM_MAX_NESTED_GUESTS KVMPPC_NR_LPIDS
39
40 #else
41 #define KVM_MAX_VCPU_ID KVM_MAX_VCPUS
42 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
43
44 #define __KVM_HAVE_ARCH_INTC_INITIALIZED
45
46 #define KVM_HALT_POLL_NS_DEFAULT 10000 /* 10 us */
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 /* PPC-specific vcpu->requests bit members */
53 #define KVM_REQ_WATCHDOG KVM_ARCH_REQ(0)
54 #define KVM_REQ_EPR_EXIT KVM_ARCH_REQ(1)
55
56 #include <linux/mmu_notifier.h>
57
58 #define KVM_ARCH_WANT_MMU_NOTIFIER
59
60 extern int kvm_unmap_hva_range(struct kvm *kvm,
61 unsigned long start, unsigned long end,
62 unsigned flags);
63 extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
64 extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
65 extern int kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
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
82 struct lppaca;
83 struct slb_shadow;
84 struct dtl_entry;
85
86 struct kvmppc_vcpu_book3s;
87 struct kvmppc_book3s_shadow_vcpu;
88 struct kvm_nested_guest;
89
90 struct kvm_vm_stat {
91 ulong remote_tlb_flush;
92 ulong num_2M_pages;
93 ulong num_1G_pages;
94 };
95
96 struct kvm_vcpu_stat {
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_poll_success_ns;
113 u64 halt_poll_fail_ns;
114 u64 halt_wait_ns;
115 u64 halt_successful_poll;
116 u64 halt_attempted_poll;
117 u64 halt_successful_wait;
118 u64 halt_poll_invalid;
119 u64 halt_wakeup;
120 u64 dbell_exits;
121 u64 gdbell_exits;
122 u64 ld;
123 u64 st;
124 #ifdef CONFIG_PPC_BOOK3S
125 u64 pf_storage;
126 u64 pf_instruc;
127 u64 sp_storage;
128 u64 sp_instruc;
129 u64 queue_intr;
130 u64 ld_slow;
131 u64 st_slow;
132 #endif
133 u64 pthru_all;
134 u64 pthru_host;
135 u64 pthru_bad_aff;
136 };
137
138 enum kvm_exit_types {
139 MMIO_EXITS,
140 SIGNAL_EXITS,
141 ITLB_REAL_MISS_EXITS,
142 ITLB_VIRT_MISS_EXITS,
143 DTLB_REAL_MISS_EXITS,
144 DTLB_VIRT_MISS_EXITS,
145 SYSCALL_EXITS,
146 ISI_EXITS,
147 DSI_EXITS,
148 EMULATED_INST_EXITS,
149 EMULATED_MTMSRWE_EXITS,
150 EMULATED_WRTEE_EXITS,
151 EMULATED_MTSPR_EXITS,
152 EMULATED_MFSPR_EXITS,
153 EMULATED_MTMSR_EXITS,
154 EMULATED_MFMSR_EXITS,
155 EMULATED_TLBSX_EXITS,
156 EMULATED_TLBWE_EXITS,
157 EMULATED_RFI_EXITS,
158 EMULATED_RFCI_EXITS,
159 EMULATED_RFDI_EXITS,
160 DEC_EXITS,
161 EXT_INTR_EXITS,
162 HALT_WAKEUP,
163 USR_PR_INST,
164 FP_UNAVAIL,
165 DEBUG_EXITS,
166 TIMEINGUEST,
167 DBELL_EXITS,
168 GDBELL_EXITS,
169 __NUMBER_OF_KVM_EXIT_TYPES
170 };
171
172 /* allow access to big endian 32bit upper/lower parts and 64bit var */
173 struct kvmppc_exit_timing {
174 union {
175 u64 tv64;
176 struct {
177 u32 tbu, tbl;
178 } tv32;
179 };
180 };
181
182 struct kvmppc_pginfo {
183 unsigned long pfn;
184 atomic_t refcnt;
185 };
186
187 struct kvmppc_spapr_tce_iommu_table {
188 struct rcu_head rcu;
189 struct list_head next;
190 struct iommu_table *tbl;
191 struct kref kref;
192 };
193
194 #define TCES_PER_PAGE (PAGE_SIZE / sizeof(u64))
195
196 struct kvmppc_spapr_tce_table {
197 struct list_head list;
198 struct kvm *kvm;
199 u64 liobn;
200 struct rcu_head rcu;
201 u32 page_shift;
202 u64 offset; /* in pages */
203 u64 size; /* window size in pages */
204 struct list_head iommu_tables;
205 struct mutex alloc_lock;
206 struct page *pages[0];
207 };
208
209 /* XICS components, defined in book3s_xics.c */
210 struct kvmppc_xics;
211 struct kvmppc_icp;
212 extern struct kvm_device_ops kvm_xics_ops;
213
214 /* XIVE components, defined in book3s_xive.c */
215 struct kvmppc_xive;
216 struct kvmppc_xive_vcpu;
217 extern struct kvm_device_ops kvm_xive_ops;
218 extern struct kvm_device_ops kvm_xive_native_ops;
219
220 struct kvmppc_passthru_irqmap;
221
222 /*
223 * The reverse mapping array has one entry for each HPTE,
224 * which stores the guest's view of the second word of the HPTE
225 * (including the guest physical address of the mapping),
226 * plus forward and backward pointers in a doubly-linked ring
227 * of HPTEs that map the same host page. The pointers in this
228 * ring are 32-bit HPTE indexes, to save space.
229 */
230 struct revmap_entry {
231 unsigned long guest_rpte;
232 unsigned int forw, back;
233 };
234
235 /*
236 * The rmap array of size number of guest pages is allocated for each memslot.
237 * This array is used to store usage specific information about the guest page.
238 * Below are the encodings of the various possible usage types.
239 */
240 /* Free bits which can be used to define a new usage */
241 #define KVMPPC_RMAP_TYPE_MASK 0xff00000000000000
242 #define KVMPPC_RMAP_NESTED 0xc000000000000000 /* Nested rmap array */
243 #define KVMPPC_RMAP_HPT 0x0100000000000000 /* HPT guest */
244
245 /*
246 * rmap usage definition for a hash page table (hpt) guest:
247 * 0x0000080000000000 Lock bit
248 * 0x0000018000000000 RC bits
249 * 0x0000000100000000 Present bit
250 * 0x00000000ffffffff HPT index bits
251 * The bottom 32 bits are the index in the guest HPT of a HPTE that points to
252 * the page.
253 */
254 #define KVMPPC_RMAP_LOCK_BIT 43
255 #define KVMPPC_RMAP_RC_SHIFT 32
256 #define KVMPPC_RMAP_REFERENCED (HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)
257 #define KVMPPC_RMAP_PRESENT 0x100000000ul
258 #define KVMPPC_RMAP_INDEX 0xfffffffful
259
260 struct kvm_arch_memory_slot {
261 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
262 unsigned long *rmap;
263 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
264 };
265
266 struct kvm_hpt_info {
267 /* Host virtual (linear mapping) address of guest HPT */
268 unsigned long virt;
269 /* Array of reverse mapping entries for each guest HPTE */
270 struct revmap_entry *rev;
271 /* Guest HPT size is 2**(order) bytes */
272 u32 order;
273 /* 1 if HPT allocated with CMA, 0 otherwise */
274 int cma;
275 };
276
277 struct kvm_resize_hpt;
278
279 struct kvm_arch {
280 unsigned int lpid;
281 unsigned int smt_mode; /* # vcpus per virtual core */
282 unsigned int emul_smt_mode; /* emualted SMT mode, on P9 */
283 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
284 unsigned int tlb_sets;
285 struct kvm_hpt_info hpt;
286 atomic64_t mmio_update;
287 unsigned int host_lpid;
288 unsigned long host_lpcr;
289 unsigned long sdr1;
290 unsigned long host_sdr1;
291 unsigned long lpcr;
292 unsigned long vrma_slb_v;
293 int mmu_ready;
294 atomic_t vcpus_running;
295 u32 online_vcores;
296 atomic_t hpte_mod_interest;
297 cpumask_t need_tlb_flush;
298 cpumask_t cpu_in_guest;
299 u8 radix;
300 u8 fwnmi_enabled;
301 u8 secure_guest;
302 bool threads_indep;
303 bool nested_enable;
304 pgd_t *pgtable;
305 u64 process_table;
306 struct dentry *debugfs_dir;
307 struct dentry *htab_dentry;
308 struct dentry *radix_dentry;
309 struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */
310 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
311 #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
312 struct mutex hpt_mutex;
313 #endif
314 #ifdef CONFIG_PPC_BOOK3S_64
315 struct list_head spapr_tce_tables;
316 struct list_head rtas_tokens;
317 struct mutex rtas_token_lock;
318 DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
319 #endif
320 #ifdef CONFIG_KVM_MPIC
321 struct openpic *mpic;
322 #endif
323 #ifdef CONFIG_KVM_XICS
324 struct kvmppc_xics *xics;
325 struct kvmppc_xive *xive; /* Current XIVE device in use */
326 struct {
327 struct kvmppc_xive *native;
328 struct kvmppc_xive *xics_on_xive;
329 } xive_devices;
330 struct kvmppc_passthru_irqmap *pimap;
331 #endif
332 struct kvmppc_ops *kvm_ops;
333 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
334 struct mutex mmu_setup_lock; /* nests inside vcpu mutexes */
335 u64 l1_ptcr;
336 int max_nested_lpid;
337 struct kvm_nested_guest *nested_guests[KVM_MAX_NESTED_GUESTS];
338 /* This array can grow quite large, keep it at the end */
339 struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
340 #endif
341 };
342
343 #define VCORE_ENTRY_MAP(vc) ((vc)->entry_exit_map & 0xff)
344 #define VCORE_EXIT_MAP(vc) ((vc)->entry_exit_map >> 8)
345 #define VCORE_IS_EXITING(vc) (VCORE_EXIT_MAP(vc) != 0)
346
347 /* This bit is used when a vcore exit is triggered from outside the vcore */
348 #define VCORE_EXIT_REQ 0x10000
349
350 /*
351 * Values for vcore_state.
352 * Note that these are arranged such that lower values
353 * (< VCORE_SLEEPING) don't require stolen time accounting
354 * on load/unload, and higher values do.
355 */
356 #define VCORE_INACTIVE 0
357 #define VCORE_PREEMPT 1
358 #define VCORE_PIGGYBACK 2
359 #define VCORE_SLEEPING 3
360 #define VCORE_RUNNING 4
361 #define VCORE_EXITING 5
362 #define VCORE_POLLING 6
363
364 /*
365 * Struct used to manage memory for a virtual processor area
366 * registered by a PAPR guest. There are three types of area
367 * that a guest can register.
368 */
369 struct kvmppc_vpa {
370 unsigned long gpa; /* Current guest phys addr */
371 void *pinned_addr; /* Address in kernel linear mapping */
372 void *pinned_end; /* End of region */
373 unsigned long next_gpa; /* Guest phys addr for update */
374 unsigned long len; /* Number of bytes required */
375 u8 update_pending; /* 1 => update pinned_addr from next_gpa */
376 bool dirty; /* true => area has been modified by kernel */
377 };
378
379 struct kvmppc_pte {
380 ulong eaddr;
381 u64 vpage;
382 ulong raddr;
383 bool may_read : 1;
384 bool may_write : 1;
385 bool may_execute : 1;
386 unsigned long wimg;
387 unsigned long rc;
388 u8 page_size; /* MMU_PAGE_xxx */
389 u8 page_shift;
390 };
391
392 struct kvmppc_mmu {
393 /* book3s_64 only */
394 void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
395 u64 (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
396 u64 (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
397 int (*slbfee)(struct kvm_vcpu *vcpu, gva_t eaddr, ulong *ret_slb);
398 void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
399 void (*slbia)(struct kvm_vcpu *vcpu);
400 /* book3s */
401 void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
402 u32 (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
403 int (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,
404 struct kvmppc_pte *pte, bool data, bool iswrite);
405 void (*reset_msr)(struct kvm_vcpu *vcpu);
406 void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
407 int (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
408 u64 (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
409 bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
410 };
411
412 struct kvmppc_slb {
413 u64 esid;
414 u64 vsid;
415 u64 orige;
416 u64 origv;
417 bool valid : 1;
418 bool Ks : 1;
419 bool Kp : 1;
420 bool nx : 1;
421 bool large : 1; /* PTEs are 16MB */
422 bool tb : 1; /* 1TB segment */
423 bool class : 1;
424 u8 base_page_size; /* MMU_PAGE_xxx */
425 };
426
427 /* Struct used to accumulate timing information in HV real mode code */
428 struct kvmhv_tb_accumulator {
429 u64 seqcount; /* used to synchronize access, also count * 2 */
430 u64 tb_total; /* total time in timebase ticks */
431 u64 tb_min; /* min time */
432 u64 tb_max; /* max time */
433 };
434
435 #ifdef CONFIG_PPC_BOOK3S_64
436 struct kvmppc_irq_map {
437 u32 r_hwirq;
438 u32 v_hwirq;
439 struct irq_desc *desc;
440 };
441
442 #define KVMPPC_PIRQ_MAPPED 1024
443 struct kvmppc_passthru_irqmap {
444 int n_mapped;
445 struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED];
446 };
447 #endif
448
449 # ifdef CONFIG_PPC_FSL_BOOK3E
450 #define KVMPPC_BOOKE_IAC_NUM 2
451 #define KVMPPC_BOOKE_DAC_NUM 2
452 # else
453 #define KVMPPC_BOOKE_IAC_NUM 4
454 #define KVMPPC_BOOKE_DAC_NUM 2
455 # endif
456 #define KVMPPC_BOOKE_MAX_IAC 4
457 #define KVMPPC_BOOKE_MAX_DAC 2
458
459 /* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
460 #define KVMPPC_EPR_NONE 0 /* EPR not supported */
461 #define KVMPPC_EPR_USER 1 /* exit to userspace to fill EPR */
462 #define KVMPPC_EPR_KERNEL 2 /* in-kernel irqchip */
463
464 #define KVMPPC_IRQ_DEFAULT 0
465 #define KVMPPC_IRQ_MPIC 1
466 #define KVMPPC_IRQ_XICS 2 /* Includes a XIVE option */
467 #define KVMPPC_IRQ_XIVE 3 /* XIVE native exploitation mode */
468
469 #define MMIO_HPTE_CACHE_SIZE 4
470
471 struct mmio_hpte_cache_entry {
472 unsigned long hpte_v;
473 unsigned long hpte_r;
474 unsigned long rpte;
475 unsigned long pte_index;
476 unsigned long eaddr;
477 unsigned long slb_v;
478 long mmio_update;
479 unsigned int slb_base_pshift;
480 };
481
482 struct mmio_hpte_cache {
483 struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE];
484 unsigned int index;
485 };
486
487 #define KVMPPC_VSX_COPY_NONE 0
488 #define KVMPPC_VSX_COPY_WORD 1
489 #define KVMPPC_VSX_COPY_DWORD 2
490 #define KVMPPC_VSX_COPY_DWORD_LOAD_DUMP 3
491 #define KVMPPC_VSX_COPY_WORD_LOAD_DUMP 4
492
493 #define KVMPPC_VMX_COPY_BYTE 8
494 #define KVMPPC_VMX_COPY_HWORD 9
495 #define KVMPPC_VMX_COPY_WORD 10
496 #define KVMPPC_VMX_COPY_DWORD 11
497
498 struct openpic;
499
500 /* W0 and W1 of a XIVE thread management context */
501 union xive_tma_w01 {
502 struct {
503 u8 nsr;
504 u8 cppr;
505 u8 ipb;
506 u8 lsmfb;
507 u8 ack;
508 u8 inc;
509 u8 age;
510 u8 pipr;
511 };
512 __be64 w01;
513 };
514
515 struct kvm_vcpu_arch {
516 ulong host_stack;
517 u32 host_pid;
518 #ifdef CONFIG_PPC_BOOK3S
519 struct kvmppc_slb slb[64];
520 int slb_max; /* 1 + index of last valid entry in slb[] */
521 int slb_nr; /* total number of entries in SLB */
522 struct kvmppc_mmu mmu;
523 struct kvmppc_vcpu_book3s *book3s;
524 #endif
525 #ifdef CONFIG_PPC_BOOK3S_32
526 struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
527 #endif
528
529 struct pt_regs regs;
530
531 struct thread_fp_state fp;
532
533 #ifdef CONFIG_SPE
534 ulong evr[32];
535 ulong spefscr;
536 ulong host_spefscr;
537 u64 acc;
538 #endif
539 #ifdef CONFIG_ALTIVEC
540 struct thread_vr_state vr;
541 #endif
542
543 #ifdef CONFIG_KVM_BOOKE_HV
544 u32 host_mas4;
545 u32 host_mas6;
546 u32 shadow_epcr;
547 u32 shadow_msrp;
548 u32 eplc;
549 u32 epsc;
550 u32 oldpir;
551 #endif
552
553 #if defined(CONFIG_BOOKE)
554 #if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
555 u32 epcr;
556 #endif
557 #endif
558
559 #ifdef CONFIG_PPC_BOOK3S
560 /* For Gekko paired singles */
561 u32 qpr[32];
562 #endif
563
564 #ifdef CONFIG_PPC_BOOK3S
565 ulong tar;
566 #endif
567
568 #ifdef CONFIG_PPC_BOOK3S
569 ulong hflags;
570 ulong guest_owned_ext;
571 ulong purr;
572 ulong spurr;
573 ulong ic;
574 ulong dscr;
575 ulong amr;
576 ulong uamor;
577 ulong iamr;
578 u32 ctrl;
579 u32 dabrx;
580 ulong dabr;
581 ulong dawr;
582 ulong dawrx;
583 ulong ciabr;
584 ulong cfar;
585 ulong ppr;
586 u32 pspb;
587 ulong fscr;
588 ulong shadow_fscr;
589 ulong ebbhr;
590 ulong ebbrr;
591 ulong bescr;
592 ulong csigr;
593 ulong tacr;
594 ulong tcscr;
595 ulong acop;
596 ulong wort;
597 ulong tid;
598 ulong psscr;
599 ulong hfscr;
600 ulong shadow_srr1;
601 #endif
602 u32 vrsave; /* also USPRG0 */
603 u32 mmucr;
604 /* shadow_msr is unused for BookE HV */
605 ulong shadow_msr;
606 ulong csrr0;
607 ulong csrr1;
608 ulong dsrr0;
609 ulong dsrr1;
610 ulong mcsrr0;
611 ulong mcsrr1;
612 ulong mcsr;
613 ulong dec;
614 #ifdef CONFIG_BOOKE
615 u32 decar;
616 #endif
617 /* Time base value when we entered the guest */
618 u64 entry_tb;
619 u64 entry_vtb;
620 u64 entry_ic;
621 u32 tcr;
622 ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
623 u32 ivor[64];
624 ulong ivpr;
625 u32 pvr;
626
627 u32 shadow_pid;
628 u32 shadow_pid1;
629 u32 pid;
630 u32 swap_pid;
631
632 u32 ccr0;
633 u32 ccr1;
634 u32 dbsr;
635
636 u64 mmcr[5];
637 u32 pmc[8];
638 u32 spmc[2];
639 u64 siar;
640 u64 sdar;
641 u64 sier;
642 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
643 u64 tfhar;
644 u64 texasr;
645 u64 tfiar;
646 u64 orig_texasr;
647
648 u32 cr_tm;
649 u64 xer_tm;
650 u64 lr_tm;
651 u64 ctr_tm;
652 u64 amr_tm;
653 u64 ppr_tm;
654 u64 dscr_tm;
655 u64 tar_tm;
656
657 ulong gpr_tm[32];
658
659 struct thread_fp_state fp_tm;
660
661 struct thread_vr_state vr_tm;
662 u32 vrsave_tm; /* also USPRG0 */
663 #endif
664
665 #ifdef CONFIG_KVM_EXIT_TIMING
666 struct mutex exit_timing_lock;
667 struct kvmppc_exit_timing timing_exit;
668 struct kvmppc_exit_timing timing_last_enter;
669 u32 last_exit_type;
670 u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
671 u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
672 u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
673 u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
674 u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
675 u64 timing_last_exit;
676 struct dentry *debugfs_exit_timing;
677 #endif
678
679 #ifdef CONFIG_PPC_BOOK3S
680 ulong fault_dar;
681 u32 fault_dsisr;
682 unsigned long intr_msr;
683 ulong fault_gpa; /* guest real address of page fault (POWER9) */
684 #endif
685
686 #ifdef CONFIG_BOOKE
687 ulong fault_dear;
688 ulong fault_esr;
689 ulong queued_dear;
690 ulong queued_esr;
691 spinlock_t wdt_lock;
692 struct timer_list wdt_timer;
693 u32 tlbcfg[4];
694 u32 tlbps[4];
695 u32 mmucfg;
696 u32 eptcfg;
697 u32 epr;
698 u64 sprg9;
699 u32 pwrmgtcr0;
700 u32 crit_save;
701 /* guest debug registers*/
702 struct debug_reg dbg_reg;
703 #endif
704 gpa_t paddr_accessed;
705 gva_t vaddr_accessed;
706 pgd_t *pgdir;
707
708 u16 io_gpr; /* GPR used as IO source/target */
709 u8 mmio_host_swabbed;
710 u8 mmio_sign_extend;
711 /* conversion between single and double precision */
712 u8 mmio_sp64_extend;
713 /*
714 * Number of simulations for vsx.
715 * If we use 2*8bytes to simulate 1*16bytes,
716 * then the number should be 2 and
717 * mmio_copy_type=KVMPPC_VSX_COPY_DWORD.
718 * If we use 4*4bytes to simulate 1*16bytes,
719 * the number should be 4 and
720 * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD.
721 */
722 u8 mmio_vsx_copy_nums;
723 u8 mmio_vsx_offset;
724 u8 mmio_vmx_copy_nums;
725 u8 mmio_vmx_offset;
726 u8 mmio_copy_type;
727 u8 osi_needed;
728 u8 osi_enabled;
729 u8 papr_enabled;
730 u8 watchdog_enabled;
731 u8 sane;
732 u8 cpu_type;
733 u8 hcall_needed;
734 u8 epr_flags; /* KVMPPC_EPR_xxx */
735 u8 epr_needed;
736 u8 external_oneshot; /* clear external irq after delivery */
737
738 u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
739
740 struct hrtimer dec_timer;
741 u64 dec_jiffies;
742 u64 dec_expires;
743 unsigned long pending_exceptions;
744 u8 ceded;
745 u8 prodded;
746 u8 doorbell_request;
747 u8 irq_pending; /* Used by XIVE to signal pending guest irqs */
748 u32 last_inst;
749
750 struct swait_queue_head *wqp;
751 struct kvmppc_vcore *vcore;
752 int ret;
753 int trap;
754 int state;
755 int ptid;
756 int thread_cpu;
757 int prev_cpu;
758 bool timer_running;
759 wait_queue_head_t cpu_run;
760 struct machine_check_event mce_evt; /* Valid if trap == 0x200 */
761
762 struct kvm_vcpu_arch_shared *shared;
763 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
764 bool shared_big_endian;
765 #endif
766 unsigned long magic_page_pa; /* phys addr to map the magic page to */
767 unsigned long magic_page_ea; /* effect. addr to map the magic page to */
768 bool disable_kernel_nx;
769
770 int irq_type; /* one of KVM_IRQ_* */
771 int irq_cpu_id;
772 struct openpic *mpic; /* KVM_IRQ_MPIC */
773 #ifdef CONFIG_KVM_XICS
774 struct kvmppc_icp *icp; /* XICS presentation controller */
775 struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */
776 __be32 xive_cam_word; /* Cooked W2 in proper endian with valid bit */
777 u8 xive_pushed; /* Is the VP pushed on the physical CPU ? */
778 u8 xive_esc_on; /* Is the escalation irq enabled ? */
779 union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */
780 u64 xive_esc_raddr; /* Escalation interrupt ESB real addr */
781 u64 xive_esc_vaddr; /* Escalation interrupt ESB virt addr */
782 #endif
783
784 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
785 struct kvm_vcpu_arch_shared shregs;
786
787 struct mmio_hpte_cache mmio_cache;
788 unsigned long pgfault_addr;
789 long pgfault_index;
790 unsigned long pgfault_hpte[2];
791 struct mmio_hpte_cache_entry *pgfault_cache;
792
793 struct task_struct *run_task;
794 struct kvm_run *kvm_run;
795
796 spinlock_t vpa_update_lock;
797 struct kvmppc_vpa vpa;
798 struct kvmppc_vpa dtl;
799 struct dtl_entry *dtl_ptr;
800 unsigned long dtl_index;
801 u64 stolen_logged;
802 struct kvmppc_vpa slb_shadow;
803
804 spinlock_t tbacct_lock;
805 u64 busy_stolen;
806 u64 busy_preempt;
807
808 u32 emul_inst;
809
810 u32 online;
811
812 /* For support of nested guests */
813 struct kvm_nested_guest *nested;
814 u32 nested_vcpu_id;
815 gpa_t nested_io_gpr;
816 #endif
817
818 #ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
819 struct kvmhv_tb_accumulator *cur_activity; /* What we're timing */
820 u64 cur_tb_start; /* when it started */
821 struct kvmhv_tb_accumulator rm_entry; /* real-mode entry code */
822 struct kvmhv_tb_accumulator rm_intr; /* real-mode intr handling */
823 struct kvmhv_tb_accumulator rm_exit; /* real-mode exit code */
824 struct kvmhv_tb_accumulator guest_time; /* guest execution */
825 struct kvmhv_tb_accumulator cede_time; /* time napping inside guest */
826
827 struct dentry *debugfs_dir;
828 struct dentry *debugfs_timings;
829 #endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
830 };
831
832 #define VCPU_FPR(vcpu, i) (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
833 #define VCPU_VSX_FPR(vcpu, i, j) ((vcpu)->arch.fp.fpr[i][j])
834 #define VCPU_VSX_VR(vcpu, i) ((vcpu)->arch.vr.vr[i])
835
836 /* Values for vcpu->arch.state */
837 #define KVMPPC_VCPU_NOTREADY 0
838 #define KVMPPC_VCPU_RUNNABLE 1
839 #define KVMPPC_VCPU_BUSY_IN_HOST 2
840
841 /* Values for vcpu->arch.io_gpr */
842 #define KVM_MMIO_REG_MASK 0x003f
843 #define KVM_MMIO_REG_EXT_MASK 0xffc0
844 #define KVM_MMIO_REG_GPR 0x0000
845 #define KVM_MMIO_REG_FPR 0x0040
846 #define KVM_MMIO_REG_QPR 0x0080
847 #define KVM_MMIO_REG_FQPR 0x00c0
848 #define KVM_MMIO_REG_VSX 0x0100
849 #define KVM_MMIO_REG_VMX 0x0180
850 #define KVM_MMIO_REG_NESTED_GPR 0xffc0
851
852
853 #define __KVM_HAVE_ARCH_WQP
854 #define __KVM_HAVE_CREATE_DEVICE
855
kvm_arch_hardware_disable(void)856 static inline void kvm_arch_hardware_disable(void) {}
kvm_arch_hardware_unsetup(void)857 static inline void kvm_arch_hardware_unsetup(void) {}
kvm_arch_sync_events(struct kvm * kvm)858 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
kvm_arch_memslots_updated(struct kvm * kvm,u64 gen)859 static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {}
kvm_arch_flush_shadow_all(struct kvm * kvm)860 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
kvm_arch_sched_in(struct kvm_vcpu * vcpu,int cpu)861 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
kvm_arch_exit(void)862 static inline void kvm_arch_exit(void) {}
kvm_arch_vcpu_blocking(struct kvm_vcpu * vcpu)863 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
kvm_arch_vcpu_unblocking(struct kvm_vcpu * vcpu)864 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
kvm_arch_vcpu_block_finish(struct kvm_vcpu * vcpu)865 static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
866
867 #endif /* __POWERPC_KVM_HOST_H__ */
868