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
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 struct kvm_vm_stat_generic generic;
92 u64 num_2M_pages;
93 u64 num_1G_pages;
94 };
95
96 struct 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
132 enum 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 */
167 struct kvmppc_exit_timing {
168 union {
169 u64 tv64;
170 struct {
171 u32 tbu, tbl;
172 } tv32;
173 };
174 };
175
176 struct kvmppc_pginfo {
177 unsigned long pfn;
178 atomic_t refcnt;
179 };
180
181 struct 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
190 struct 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 */
204 struct kvmppc_xics;
205 struct kvmppc_icp;
206 extern struct kvm_device_ops kvm_xics_ops;
207
208 /* XIVE components, defined in book3s_xive.c */
209 struct kvmppc_xive;
210 struct kvmppc_xive_vcpu;
211 extern struct kvm_device_ops kvm_xive_ops;
212 extern struct kvm_device_ops kvm_xive_native_ops;
213
214 struct 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 */
224 struct 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
254 struct kvm_arch_memory_slot {
255 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
256 unsigned long *rmap;
257 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
258 };
259
260 struct 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
271 struct 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
278 struct 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 */
367 struct 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
377 struct 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
390 struct 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
409 struct 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 */
425 struct 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
433 struct kvmppc_irq_map {
434 u32 r_hwirq;
435 u32 v_hwirq;
436 struct irq_desc *desc;
437 };
438
439 #define KVMPPC_PIRQ_MAPPED 1024
440 struct kvmppc_passthru_irqmap {
441 int n_mapped;
442 struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED];
443 };
444 #endif
445
446 # ifdef CONFIG_PPC_FSL_BOOK3E
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
468 struct 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
479 struct 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
495 struct openpic;
496
497 /* W0 and W1 of a XIVE thread management context */
498 union 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
512 struct 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 struct pt_regs regs;
527
528 struct thread_fp_state fp;
529
530 #ifdef CONFIG_SPE
531 ulong evr[32];
532 ulong spefscr;
533 ulong host_spefscr;
534 u64 acc;
535 #endif
536 #ifdef CONFIG_ALTIVEC
537 struct thread_vr_state vr;
538 #endif
539
540 #ifdef CONFIG_KVM_BOOKE_HV
541 u32 host_mas4;
542 u32 host_mas6;
543 u32 shadow_epcr;
544 u32 shadow_msrp;
545 u32 eplc;
546 u32 epsc;
547 u32 oldpir;
548 #endif
549
550 #if defined(CONFIG_BOOKE)
551 #if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
552 u32 epcr;
553 #endif
554 #endif
555
556 #ifdef CONFIG_PPC_BOOK3S
557 /* For Gekko paired singles */
558 u32 qpr[32];
559 #endif
560
561 #ifdef CONFIG_PPC_BOOK3S
562 ulong tar;
563 #endif
564
565 #ifdef CONFIG_PPC_BOOK3S
566 ulong hflags;
567 ulong guest_owned_ext;
568 ulong purr;
569 ulong spurr;
570 ulong ic;
571 ulong dscr;
572 ulong amr;
573 ulong uamor;
574 ulong iamr;
575 u32 ctrl;
576 u32 dabrx;
577 ulong dabr;
578 ulong dawr0;
579 ulong dawrx0;
580 ulong dawr1;
581 ulong dawrx1;
582 ulong ciabr;
583 ulong cfar;
584 ulong ppr;
585 u32 pspb;
586 u8 load_ebb;
587 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
588 u8 load_tm;
589 #endif
590 ulong fscr;
591 ulong shadow_fscr;
592 ulong ebbhr;
593 ulong ebbrr;
594 ulong bescr;
595 ulong csigr;
596 ulong tacr;
597 ulong tcscr;
598 ulong acop;
599 ulong wort;
600 ulong tid;
601 ulong psscr;
602 ulong hfscr;
603 ulong shadow_srr1;
604 #endif
605 u32 vrsave; /* also USPRG0 */
606 u32 mmucr;
607 /* shadow_msr is unused for BookE HV */
608 ulong shadow_msr;
609 ulong csrr0;
610 ulong csrr1;
611 ulong dsrr0;
612 ulong dsrr1;
613 ulong mcsrr0;
614 ulong mcsrr1;
615 ulong mcsr;
616 ulong dec;
617 #ifdef CONFIG_BOOKE
618 u32 decar;
619 #endif
620 /* Time base value when we entered the guest */
621 u64 entry_tb;
622 u64 entry_vtb;
623 u64 entry_ic;
624 u32 tcr;
625 ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
626 u32 ivor[64];
627 ulong ivpr;
628 u32 pvr;
629
630 u32 shadow_pid;
631 u32 shadow_pid1;
632 u32 pid;
633 u32 swap_pid;
634
635 u32 ccr0;
636 u32 ccr1;
637 u32 dbsr;
638
639 u64 mmcr[4]; /* MMCR0, MMCR1, MMCR2, MMCR3 */
640 u64 mmcra;
641 u64 mmcrs;
642 u32 pmc[8];
643 u32 spmc[2];
644 u64 siar;
645 u64 sdar;
646 u64 sier[3];
647 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
648 u64 tfhar;
649 u64 texasr;
650 u64 tfiar;
651 u64 orig_texasr;
652
653 u32 cr_tm;
654 u64 xer_tm;
655 u64 lr_tm;
656 u64 ctr_tm;
657 u64 amr_tm;
658 u64 ppr_tm;
659 u64 dscr_tm;
660 u64 tar_tm;
661
662 ulong gpr_tm[32];
663
664 struct thread_fp_state fp_tm;
665
666 struct thread_vr_state vr_tm;
667 u32 vrsave_tm; /* also USPRG0 */
668 #endif
669
670 #ifdef CONFIG_KVM_EXIT_TIMING
671 struct mutex exit_timing_lock;
672 struct kvmppc_exit_timing timing_exit;
673 struct kvmppc_exit_timing timing_last_enter;
674 u32 last_exit_type;
675 u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
676 u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
677 u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
678 u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
679 u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
680 u64 timing_last_exit;
681 #endif
682
683 #ifdef CONFIG_PPC_BOOK3S
684 ulong fault_dar;
685 u32 fault_dsisr;
686 unsigned long intr_msr;
687 /*
688 * POWER9 and later: fault_gpa contains the guest real address of page
689 * fault for a radix guest, or segment descriptor (equivalent to result
690 * from slbmfev of SLB entry that translated the EA) for hash guests.
691 */
692 ulong fault_gpa;
693 #endif
694
695 #ifdef CONFIG_BOOKE
696 ulong fault_dear;
697 ulong fault_esr;
698 ulong queued_dear;
699 ulong queued_esr;
700 spinlock_t wdt_lock;
701 struct timer_list wdt_timer;
702 u32 tlbcfg[4];
703 u32 tlbps[4];
704 u32 mmucfg;
705 u32 eptcfg;
706 u32 epr;
707 u64 sprg9;
708 u32 pwrmgtcr0;
709 u32 crit_save;
710 /* guest debug registers*/
711 struct debug_reg dbg_reg;
712 #endif
713 gpa_t paddr_accessed;
714 gva_t vaddr_accessed;
715 pgd_t *pgdir;
716
717 u16 io_gpr; /* GPR used as IO source/target */
718 u8 mmio_host_swabbed;
719 u8 mmio_sign_extend;
720 /* conversion between single and double precision */
721 u8 mmio_sp64_extend;
722 /*
723 * Number of simulations for vsx.
724 * If we use 2*8bytes to simulate 1*16bytes,
725 * then the number should be 2 and
726 * mmio_copy_type=KVMPPC_VSX_COPY_DWORD.
727 * If we use 4*4bytes to simulate 1*16bytes,
728 * the number should be 4 and
729 * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD.
730 */
731 u8 mmio_vsx_copy_nums;
732 u8 mmio_vsx_offset;
733 u8 mmio_vmx_copy_nums;
734 u8 mmio_vmx_offset;
735 u8 mmio_copy_type;
736 u8 osi_needed;
737 u8 osi_enabled;
738 u8 papr_enabled;
739 u8 watchdog_enabled;
740 u8 sane;
741 u8 cpu_type;
742 u8 hcall_needed;
743 u8 epr_flags; /* KVMPPC_EPR_xxx */
744 u8 epr_needed;
745 u8 external_oneshot; /* clear external irq after delivery */
746
747 u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
748
749 struct hrtimer dec_timer;
750 u64 dec_jiffies;
751 u64 dec_expires; /* Relative to guest timebase. */
752 unsigned long pending_exceptions;
753 u8 ceded;
754 u8 prodded;
755 u8 doorbell_request;
756 u8 irq_pending; /* Used by XIVE to signal pending guest irqs */
757 u32 last_inst;
758
759 struct rcuwait wait;
760 struct rcuwait *waitp;
761 struct kvmppc_vcore *vcore;
762 int ret;
763 int trap;
764 int state;
765 int ptid;
766 int thread_cpu;
767 int prev_cpu;
768 bool timer_running;
769 wait_queue_head_t cpu_run;
770 struct machine_check_event mce_evt; /* Valid if trap == 0x200 */
771
772 struct kvm_vcpu_arch_shared *shared;
773 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
774 bool shared_big_endian;
775 #endif
776 unsigned long magic_page_pa; /* phys addr to map the magic page to */
777 unsigned long magic_page_ea; /* effect. addr to map the magic page to */
778 bool disable_kernel_nx;
779
780 int irq_type; /* one of KVM_IRQ_* */
781 int irq_cpu_id;
782 struct openpic *mpic; /* KVM_IRQ_MPIC */
783 #ifdef CONFIG_KVM_XICS
784 struct kvmppc_icp *icp; /* XICS presentation controller */
785 struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */
786 __be32 xive_cam_word; /* Cooked W2 in proper endian with valid bit */
787 u8 xive_pushed; /* Is the VP pushed on the physical CPU ? */
788 u8 xive_esc_on; /* Is the escalation irq enabled ? */
789 union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */
790 u64 xive_esc_raddr; /* Escalation interrupt ESB real addr */
791 u64 xive_esc_vaddr; /* Escalation interrupt ESB virt addr */
792 #endif
793
794 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
795 struct kvm_vcpu_arch_shared shregs;
796
797 struct mmio_hpte_cache mmio_cache;
798 unsigned long pgfault_addr;
799 long pgfault_index;
800 unsigned long pgfault_hpte[2];
801 struct mmio_hpte_cache_entry *pgfault_cache;
802
803 struct task_struct *run_task;
804
805 spinlock_t vpa_update_lock;
806 struct kvmppc_vpa vpa;
807 struct kvmppc_vpa dtl;
808 struct dtl_entry *dtl_ptr;
809 unsigned long dtl_index;
810 u64 stolen_logged;
811 struct kvmppc_vpa slb_shadow;
812
813 spinlock_t tbacct_lock;
814 u64 busy_stolen;
815 u64 busy_preempt;
816
817 u32 emul_inst;
818
819 u32 online;
820
821 u64 hfscr_permitted; /* A mask of permitted HFSCR facilities */
822
823 /* For support of nested guests */
824 struct kvm_nested_guest *nested;
825 u64 nested_hfscr; /* HFSCR that the L1 requested for the nested guest */
826 u32 nested_vcpu_id;
827 gpa_t nested_io_gpr;
828 #endif
829
830 #ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
831 struct kvmhv_tb_accumulator *cur_activity; /* What we're timing */
832 u64 cur_tb_start; /* when it started */
833 struct kvmhv_tb_accumulator rm_entry; /* real-mode entry code */
834 struct kvmhv_tb_accumulator rm_intr; /* real-mode intr handling */
835 struct kvmhv_tb_accumulator rm_exit; /* real-mode exit code */
836 struct kvmhv_tb_accumulator guest_time; /* guest execution */
837 struct kvmhv_tb_accumulator cede_time; /* time napping inside guest */
838 #endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
839 };
840
841 #define VCPU_FPR(vcpu, i) (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
842 #define VCPU_VSX_FPR(vcpu, i, j) ((vcpu)->arch.fp.fpr[i][j])
843 #define VCPU_VSX_VR(vcpu, i) ((vcpu)->arch.vr.vr[i])
844
845 /* Values for vcpu->arch.state */
846 #define KVMPPC_VCPU_NOTREADY 0
847 #define KVMPPC_VCPU_RUNNABLE 1
848 #define KVMPPC_VCPU_BUSY_IN_HOST 2
849
850 /* Values for vcpu->arch.io_gpr */
851 #define KVM_MMIO_REG_MASK 0x003f
852 #define KVM_MMIO_REG_EXT_MASK 0xffc0
853 #define KVM_MMIO_REG_GPR 0x0000
854 #define KVM_MMIO_REG_FPR 0x0040
855 #define KVM_MMIO_REG_QPR 0x0080
856 #define KVM_MMIO_REG_FQPR 0x00c0
857 #define KVM_MMIO_REG_VSX 0x0100
858 #define KVM_MMIO_REG_VMX 0x0180
859 #define KVM_MMIO_REG_NESTED_GPR 0xffc0
860
861
862 #define __KVM_HAVE_ARCH_WQP
863 #define __KVM_HAVE_CREATE_DEVICE
864
kvm_arch_hardware_disable(void)865 static inline void kvm_arch_hardware_disable(void) {}
kvm_arch_hardware_unsetup(void)866 static inline void kvm_arch_hardware_unsetup(void) {}
kvm_arch_sync_events(struct kvm * kvm)867 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
kvm_arch_memslots_updated(struct kvm * kvm,u64 gen)868 static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {}
kvm_arch_flush_shadow_all(struct kvm * kvm)869 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
kvm_arch_sched_in(struct kvm_vcpu * vcpu,int cpu)870 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
kvm_arch_exit(void)871 static inline void kvm_arch_exit(void) {}
kvm_arch_vcpu_blocking(struct kvm_vcpu * vcpu)872 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
kvm_arch_vcpu_unblocking(struct kvm_vcpu * vcpu)873 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
874
875 #endif /* __POWERPC_KVM_HOST_H__ */
876