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
32 #include <asm/cputhreads.h>
33
34 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
35 #include <asm/kvm_book3s_asm.h> /* for MAX_SMT_THREADS */
36 #define KVM_MAX_VCPU_ID (MAX_SMT_THREADS * KVM_MAX_VCORES)
37 #define KVM_MAX_NESTED_GUESTS KVMPPC_NR_LPIDS
38
39 #else
40 #define KVM_MAX_VCPU_ID KVM_MAX_VCPUS
41 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
42
43 #define __KVM_HAVE_ARCH_INTC_INITIALIZED
44
45 #define KVM_HALT_POLL_NS_DEFAULT 10000 /* 10 us */
46
47 /* These values are internal and can be increased later */
48 #define KVM_NR_IRQCHIPS 1
49 #define KVM_IRQCHIP_NUM_PINS 256
50
51 /* PPC-specific vcpu->requests bit members */
52 #define KVM_REQ_WATCHDOG KVM_ARCH_REQ(0)
53 #define KVM_REQ_EPR_EXIT KVM_ARCH_REQ(1)
54
55 #include <linux/mmu_notifier.h>
56
57 #define KVM_ARCH_WANT_MMU_NOTIFIER
58
59 #define HPTEG_CACHE_NUM (1 << 15)
60 #define HPTEG_HASH_BITS_PTE 13
61 #define HPTEG_HASH_BITS_PTE_LONG 12
62 #define HPTEG_HASH_BITS_VPTE 13
63 #define HPTEG_HASH_BITS_VPTE_LONG 5
64 #define HPTEG_HASH_BITS_VPTE_64K 11
65 #define HPTEG_HASH_NUM_PTE (1 << HPTEG_HASH_BITS_PTE)
66 #define HPTEG_HASH_NUM_PTE_LONG (1 << HPTEG_HASH_BITS_PTE_LONG)
67 #define HPTEG_HASH_NUM_VPTE (1 << HPTEG_HASH_BITS_VPTE)
68 #define HPTEG_HASH_NUM_VPTE_LONG (1 << HPTEG_HASH_BITS_VPTE_LONG)
69 #define HPTEG_HASH_NUM_VPTE_64K (1 << HPTEG_HASH_BITS_VPTE_64K)
70
71 /* Physical Address Mask - allowed range of real mode RAM access */
72 #define KVM_PAM 0x0fffffffffffffffULL
73
74 struct lppaca;
75 struct slb_shadow;
76 struct dtl_entry;
77
78 struct kvmppc_vcpu_book3s;
79 struct kvmppc_book3s_shadow_vcpu;
80 struct kvm_nested_guest;
81
82 struct kvm_vm_stat {
83 ulong remote_tlb_flush;
84 ulong num_2M_pages;
85 ulong num_1G_pages;
86 };
87
88 struct kvm_vcpu_stat {
89 u64 sum_exits;
90 u64 mmio_exits;
91 u64 signal_exits;
92 u64 light_exits;
93 /* Account for special types of light exits: */
94 u64 itlb_real_miss_exits;
95 u64 itlb_virt_miss_exits;
96 u64 dtlb_real_miss_exits;
97 u64 dtlb_virt_miss_exits;
98 u64 syscall_exits;
99 u64 isi_exits;
100 u64 dsi_exits;
101 u64 emulated_inst_exits;
102 u64 dec_exits;
103 u64 ext_intr_exits;
104 u64 halt_poll_success_ns;
105 u64 halt_poll_fail_ns;
106 u64 halt_wait_ns;
107 u64 halt_successful_poll;
108 u64 halt_attempted_poll;
109 u64 halt_successful_wait;
110 u64 halt_poll_invalid;
111 u64 halt_wakeup;
112 u64 dbell_exits;
113 u64 gdbell_exits;
114 u64 ld;
115 u64 st;
116 #ifdef CONFIG_PPC_BOOK3S
117 u64 pf_storage;
118 u64 pf_instruc;
119 u64 sp_storage;
120 u64 sp_instruc;
121 u64 queue_intr;
122 u64 ld_slow;
123 u64 st_slow;
124 #endif
125 u64 pthru_all;
126 u64 pthru_host;
127 u64 pthru_bad_aff;
128 };
129
130 enum kvm_exit_types {
131 MMIO_EXITS,
132 SIGNAL_EXITS,
133 ITLB_REAL_MISS_EXITS,
134 ITLB_VIRT_MISS_EXITS,
135 DTLB_REAL_MISS_EXITS,
136 DTLB_VIRT_MISS_EXITS,
137 SYSCALL_EXITS,
138 ISI_EXITS,
139 DSI_EXITS,
140 EMULATED_INST_EXITS,
141 EMULATED_MTMSRWE_EXITS,
142 EMULATED_WRTEE_EXITS,
143 EMULATED_MTSPR_EXITS,
144 EMULATED_MFSPR_EXITS,
145 EMULATED_MTMSR_EXITS,
146 EMULATED_MFMSR_EXITS,
147 EMULATED_TLBSX_EXITS,
148 EMULATED_TLBWE_EXITS,
149 EMULATED_RFI_EXITS,
150 EMULATED_RFCI_EXITS,
151 EMULATED_RFDI_EXITS,
152 DEC_EXITS,
153 EXT_INTR_EXITS,
154 HALT_WAKEUP,
155 USR_PR_INST,
156 FP_UNAVAIL,
157 DEBUG_EXITS,
158 TIMEINGUEST,
159 DBELL_EXITS,
160 GDBELL_EXITS,
161 __NUMBER_OF_KVM_EXIT_TYPES
162 };
163
164 /* allow access to big endian 32bit upper/lower parts and 64bit var */
165 struct kvmppc_exit_timing {
166 union {
167 u64 tv64;
168 struct {
169 u32 tbu, tbl;
170 } tv32;
171 };
172 };
173
174 struct kvmppc_pginfo {
175 unsigned long pfn;
176 atomic_t refcnt;
177 };
178
179 struct kvmppc_spapr_tce_iommu_table {
180 struct rcu_head rcu;
181 struct list_head next;
182 struct iommu_table *tbl;
183 struct kref kref;
184 };
185
186 #define TCES_PER_PAGE (PAGE_SIZE / sizeof(u64))
187
188 struct kvmppc_spapr_tce_table {
189 struct list_head list;
190 struct kvm *kvm;
191 u64 liobn;
192 struct rcu_head rcu;
193 u32 page_shift;
194 u64 offset; /* in pages */
195 u64 size; /* window size in pages */
196 struct list_head iommu_tables;
197 struct mutex alloc_lock;
198 struct page *pages[0];
199 };
200
201 /* XICS components, defined in book3s_xics.c */
202 struct kvmppc_xics;
203 struct kvmppc_icp;
204 extern struct kvm_device_ops kvm_xics_ops;
205
206 /* XIVE components, defined in book3s_xive.c */
207 struct kvmppc_xive;
208 struct kvmppc_xive_vcpu;
209 extern struct kvm_device_ops kvm_xive_ops;
210 extern struct kvm_device_ops kvm_xive_native_ops;
211
212 struct kvmppc_passthru_irqmap;
213
214 /*
215 * The reverse mapping array has one entry for each HPTE,
216 * which stores the guest's view of the second word of the HPTE
217 * (including the guest physical address of the mapping),
218 * plus forward and backward pointers in a doubly-linked ring
219 * of HPTEs that map the same host page. The pointers in this
220 * ring are 32-bit HPTE indexes, to save space.
221 */
222 struct revmap_entry {
223 unsigned long guest_rpte;
224 unsigned int forw, back;
225 };
226
227 /*
228 * The rmap array of size number of guest pages is allocated for each memslot.
229 * This array is used to store usage specific information about the guest page.
230 * Below are the encodings of the various possible usage types.
231 */
232 /* Free bits which can be used to define a new usage */
233 #define KVMPPC_RMAP_TYPE_MASK 0xff00000000000000
234 #define KVMPPC_RMAP_NESTED 0xc000000000000000 /* Nested rmap array */
235 #define KVMPPC_RMAP_HPT 0x0100000000000000 /* HPT guest */
236
237 /*
238 * rmap usage definition for a hash page table (hpt) guest:
239 * 0x0000080000000000 Lock bit
240 * 0x0000018000000000 RC bits
241 * 0x0000000100000000 Present bit
242 * 0x00000000ffffffff HPT index bits
243 * The bottom 32 bits are the index in the guest HPT of a HPTE that points to
244 * the page.
245 */
246 #define KVMPPC_RMAP_LOCK_BIT 43
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
252 struct kvm_arch_memory_slot {
253 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
254 unsigned long *rmap;
255 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
256 };
257
258 struct 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
269 struct kvm_resize_hpt;
270
271 /* Flag values for kvm_arch.secure_guest */
272 #define KVMPPC_SECURE_INIT_START 0x1 /* H_SVM_INIT_START has been called */
273 #define KVMPPC_SECURE_INIT_DONE 0x2 /* H_SVM_INIT_DONE completed */
274 #define KVMPPC_SECURE_INIT_ABORT 0x4 /* H_SVM_INIT_ABORT issued */
275
276 struct kvm_arch {
277 unsigned int lpid;
278 unsigned int smt_mode; /* # vcpus per virtual core */
279 unsigned int emul_smt_mode; /* emualted SMT mode, on P9 */
280 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
281 unsigned int tlb_sets;
282 struct kvm_hpt_info hpt;
283 atomic64_t mmio_update;
284 unsigned int host_lpid;
285 unsigned long host_lpcr;
286 unsigned long sdr1;
287 unsigned long host_sdr1;
288 unsigned long lpcr;
289 unsigned long vrma_slb_v;
290 int mmu_ready;
291 atomic_t vcpus_running;
292 u32 online_vcores;
293 atomic_t hpte_mod_interest;
294 cpumask_t need_tlb_flush;
295 cpumask_t cpu_in_guest;
296 u8 radix;
297 u8 fwnmi_enabled;
298 u8 secure_guest;
299 u8 svm_enabled;
300 bool threads_indep;
301 bool nested_enable;
302 bool dawr1_enabled;
303 pgd_t *pgtable;
304 u64 process_table;
305 struct dentry *debugfs_dir;
306 struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */
307 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
308 #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
309 struct mutex hpt_mutex;
310 #endif
311 #ifdef CONFIG_PPC_BOOK3S_64
312 struct list_head spapr_tce_tables;
313 struct list_head rtas_tokens;
314 struct mutex rtas_token_lock;
315 DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
316 #endif
317 #ifdef CONFIG_KVM_MPIC
318 struct openpic *mpic;
319 #endif
320 #ifdef CONFIG_KVM_XICS
321 struct kvmppc_xics *xics;
322 struct kvmppc_xics *xics_device;
323 struct kvmppc_xive *xive; /* Current XIVE device in use */
324 struct {
325 struct kvmppc_xive *native;
326 struct kvmppc_xive *xics_on_xive;
327 } xive_devices;
328 struct kvmppc_passthru_irqmap *pimap;
329 #endif
330 struct kvmppc_ops *kvm_ops;
331 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
332 struct mutex uvmem_lock;
333 struct list_head uvmem_pfns;
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 (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
406 int (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
407 u64 (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
408 bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
409 };
410
411 struct kvmppc_slb {
412 u64 esid;
413 u64 vsid;
414 u64 orige;
415 u64 origv;
416 bool valid : 1;
417 bool Ks : 1;
418 bool Kp : 1;
419 bool nx : 1;
420 bool large : 1; /* PTEs are 16MB */
421 bool tb : 1; /* 1TB segment */
422 bool class : 1;
423 u8 base_page_size; /* MMU_PAGE_xxx */
424 };
425
426 /* Struct used to accumulate timing information in HV real mode code */
427 struct kvmhv_tb_accumulator {
428 u64 seqcount; /* used to synchronize access, also count * 2 */
429 u64 tb_total; /* total time in timebase ticks */
430 u64 tb_min; /* min time */
431 u64 tb_max; /* max time */
432 };
433
434 #ifdef CONFIG_PPC_BOOK3S_64
435 struct kvmppc_irq_map {
436 u32 r_hwirq;
437 u32 v_hwirq;
438 struct irq_desc *desc;
439 };
440
441 #define KVMPPC_PIRQ_MAPPED 1024
442 struct kvmppc_passthru_irqmap {
443 int n_mapped;
444 struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED];
445 };
446 #endif
447
448 # ifdef CONFIG_PPC_FSL_BOOK3E
449 #define KVMPPC_BOOKE_IAC_NUM 2
450 #define KVMPPC_BOOKE_DAC_NUM 2
451 # else
452 #define KVMPPC_BOOKE_IAC_NUM 4
453 #define KVMPPC_BOOKE_DAC_NUM 2
454 # endif
455 #define KVMPPC_BOOKE_MAX_IAC 4
456 #define KVMPPC_BOOKE_MAX_DAC 2
457
458 /* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
459 #define KVMPPC_EPR_NONE 0 /* EPR not supported */
460 #define KVMPPC_EPR_USER 1 /* exit to userspace to fill EPR */
461 #define KVMPPC_EPR_KERNEL 2 /* in-kernel irqchip */
462
463 #define KVMPPC_IRQ_DEFAULT 0
464 #define KVMPPC_IRQ_MPIC 1
465 #define KVMPPC_IRQ_XICS 2 /* Includes a XIVE option */
466 #define KVMPPC_IRQ_XIVE 3 /* XIVE native exploitation mode */
467
468 #define MMIO_HPTE_CACHE_SIZE 4
469
470 struct mmio_hpte_cache_entry {
471 unsigned long hpte_v;
472 unsigned long hpte_r;
473 unsigned long rpte;
474 unsigned long pte_index;
475 unsigned long eaddr;
476 unsigned long slb_v;
477 long mmio_update;
478 unsigned int slb_base_pshift;
479 };
480
481 struct mmio_hpte_cache {
482 struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE];
483 unsigned int index;
484 };
485
486 #define KVMPPC_VSX_COPY_NONE 0
487 #define KVMPPC_VSX_COPY_WORD 1
488 #define KVMPPC_VSX_COPY_DWORD 2
489 #define KVMPPC_VSX_COPY_DWORD_LOAD_DUMP 3
490 #define KVMPPC_VSX_COPY_WORD_LOAD_DUMP 4
491
492 #define KVMPPC_VMX_COPY_BYTE 8
493 #define KVMPPC_VMX_COPY_HWORD 9
494 #define KVMPPC_VMX_COPY_WORD 10
495 #define KVMPPC_VMX_COPY_DWORD 11
496
497 struct openpic;
498
499 /* W0 and W1 of a XIVE thread management context */
500 union xive_tma_w01 {
501 struct {
502 u8 nsr;
503 u8 cppr;
504 u8 ipb;
505 u8 lsmfb;
506 u8 ack;
507 u8 inc;
508 u8 age;
509 u8 pipr;
510 };
511 __be64 w01;
512 };
513
514 struct kvm_vcpu_arch {
515 ulong host_stack;
516 u32 host_pid;
517 #ifdef CONFIG_PPC_BOOK3S
518 struct kvmppc_slb slb[64];
519 int slb_max; /* 1 + index of last valid entry in slb[] */
520 int slb_nr; /* total number of entries in SLB */
521 struct kvmppc_mmu mmu;
522 struct kvmppc_vcpu_book3s *book3s;
523 #endif
524 #ifdef CONFIG_PPC_BOOK3S_32
525 struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
526 #endif
527
528 struct pt_regs regs;
529
530 struct thread_fp_state fp;
531
532 #ifdef CONFIG_SPE
533 ulong evr[32];
534 ulong spefscr;
535 ulong host_spefscr;
536 u64 acc;
537 #endif
538 #ifdef CONFIG_ALTIVEC
539 struct thread_vr_state vr;
540 #endif
541
542 #ifdef CONFIG_KVM_BOOKE_HV
543 u32 host_mas4;
544 u32 host_mas6;
545 u32 shadow_epcr;
546 u32 shadow_msrp;
547 u32 eplc;
548 u32 epsc;
549 u32 oldpir;
550 #endif
551
552 #if defined(CONFIG_BOOKE)
553 #if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
554 u32 epcr;
555 #endif
556 #endif
557
558 #ifdef CONFIG_PPC_BOOK3S
559 /* For Gekko paired singles */
560 u32 qpr[32];
561 #endif
562
563 #ifdef CONFIG_PPC_BOOK3S
564 ulong tar;
565 #endif
566
567 #ifdef CONFIG_PPC_BOOK3S
568 ulong hflags;
569 ulong guest_owned_ext;
570 ulong purr;
571 ulong spurr;
572 ulong ic;
573 ulong dscr;
574 ulong amr;
575 ulong uamor;
576 ulong iamr;
577 u32 ctrl;
578 u32 dabrx;
579 ulong dabr;
580 ulong dawr0;
581 ulong dawrx0;
582 ulong dawr1;
583 ulong dawrx1;
584 ulong ciabr;
585 ulong cfar;
586 ulong ppr;
587 u32 pspb;
588 ulong fscr;
589 ulong shadow_fscr;
590 ulong ebbhr;
591 ulong ebbrr;
592 ulong bescr;
593 ulong csigr;
594 ulong tacr;
595 ulong tcscr;
596 ulong acop;
597 ulong wort;
598 ulong tid;
599 ulong psscr;
600 ulong hfscr;
601 ulong shadow_srr1;
602 #endif
603 u32 vrsave; /* also USPRG0 */
604 u32 mmucr;
605 /* shadow_msr is unused for BookE HV */
606 ulong shadow_msr;
607 ulong csrr0;
608 ulong csrr1;
609 ulong dsrr0;
610 ulong dsrr1;
611 ulong mcsrr0;
612 ulong mcsrr1;
613 ulong mcsr;
614 ulong dec;
615 #ifdef CONFIG_BOOKE
616 u32 decar;
617 #endif
618 /* Time base value when we entered the guest */
619 u64 entry_tb;
620 u64 entry_vtb;
621 u64 entry_ic;
622 u32 tcr;
623 ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
624 u32 ivor[64];
625 ulong ivpr;
626 u32 pvr;
627
628 u32 shadow_pid;
629 u32 shadow_pid1;
630 u32 pid;
631 u32 swap_pid;
632
633 u32 ccr0;
634 u32 ccr1;
635 u32 dbsr;
636
637 u64 mmcr[4]; /* MMCR0, MMCR1, MMCR2, MMCR3 */
638 u64 mmcra;
639 u64 mmcrs;
640 u32 pmc[8];
641 u32 spmc[2];
642 u64 siar;
643 u64 sdar;
644 u64 sier[3];
645 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
646 u64 tfhar;
647 u64 texasr;
648 u64 tfiar;
649 u64 orig_texasr;
650
651 u32 cr_tm;
652 u64 xer_tm;
653 u64 lr_tm;
654 u64 ctr_tm;
655 u64 amr_tm;
656 u64 ppr_tm;
657 u64 dscr_tm;
658 u64 tar_tm;
659
660 ulong gpr_tm[32];
661
662 struct thread_fp_state fp_tm;
663
664 struct thread_vr_state vr_tm;
665 u32 vrsave_tm; /* also USPRG0 */
666 #endif
667
668 #ifdef CONFIG_KVM_EXIT_TIMING
669 struct mutex exit_timing_lock;
670 struct kvmppc_exit_timing timing_exit;
671 struct kvmppc_exit_timing timing_last_enter;
672 u32 last_exit_type;
673 u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
674 u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
675 u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
676 u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
677 u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
678 u64 timing_last_exit;
679 struct dentry *debugfs_exit_timing;
680 #endif
681
682 #ifdef CONFIG_PPC_BOOK3S
683 ulong fault_dar;
684 u32 fault_dsisr;
685 unsigned long intr_msr;
686 ulong fault_gpa; /* guest real address of page fault (POWER9) */
687 #endif
688
689 #ifdef CONFIG_BOOKE
690 ulong fault_dear;
691 ulong fault_esr;
692 ulong queued_dear;
693 ulong queued_esr;
694 spinlock_t wdt_lock;
695 struct timer_list wdt_timer;
696 u32 tlbcfg[4];
697 u32 tlbps[4];
698 u32 mmucfg;
699 u32 eptcfg;
700 u32 epr;
701 u64 sprg9;
702 u32 pwrmgtcr0;
703 u32 crit_save;
704 /* guest debug registers*/
705 struct debug_reg dbg_reg;
706 #endif
707 gpa_t paddr_accessed;
708 gva_t vaddr_accessed;
709 pgd_t *pgdir;
710
711 u16 io_gpr; /* GPR used as IO source/target */
712 u8 mmio_host_swabbed;
713 u8 mmio_sign_extend;
714 /* conversion between single and double precision */
715 u8 mmio_sp64_extend;
716 /*
717 * Number of simulations for vsx.
718 * If we use 2*8bytes to simulate 1*16bytes,
719 * then the number should be 2 and
720 * mmio_copy_type=KVMPPC_VSX_COPY_DWORD.
721 * If we use 4*4bytes to simulate 1*16bytes,
722 * the number should be 4 and
723 * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD.
724 */
725 u8 mmio_vsx_copy_nums;
726 u8 mmio_vsx_offset;
727 u8 mmio_vmx_copy_nums;
728 u8 mmio_vmx_offset;
729 u8 mmio_copy_type;
730 u8 osi_needed;
731 u8 osi_enabled;
732 u8 papr_enabled;
733 u8 watchdog_enabled;
734 u8 sane;
735 u8 cpu_type;
736 u8 hcall_needed;
737 u8 epr_flags; /* KVMPPC_EPR_xxx */
738 u8 epr_needed;
739 u8 external_oneshot; /* clear external irq after delivery */
740
741 u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
742
743 struct hrtimer dec_timer;
744 u64 dec_jiffies;
745 u64 dec_expires;
746 unsigned long pending_exceptions;
747 u8 ceded;
748 u8 prodded;
749 u8 doorbell_request;
750 u8 irq_pending; /* Used by XIVE to signal pending guest irqs */
751 u32 last_inst;
752
753 struct rcuwait *waitp;
754 struct kvmppc_vcore *vcore;
755 int ret;
756 int trap;
757 int state;
758 int ptid;
759 int thread_cpu;
760 int prev_cpu;
761 bool timer_running;
762 wait_queue_head_t cpu_run;
763 struct machine_check_event mce_evt; /* Valid if trap == 0x200 */
764
765 struct kvm_vcpu_arch_shared *shared;
766 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
767 bool shared_big_endian;
768 #endif
769 unsigned long magic_page_pa; /* phys addr to map the magic page to */
770 unsigned long magic_page_ea; /* effect. addr to map the magic page to */
771 bool disable_kernel_nx;
772
773 int irq_type; /* one of KVM_IRQ_* */
774 int irq_cpu_id;
775 struct openpic *mpic; /* KVM_IRQ_MPIC */
776 #ifdef CONFIG_KVM_XICS
777 struct kvmppc_icp *icp; /* XICS presentation controller */
778 struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */
779 __be32 xive_cam_word; /* Cooked W2 in proper endian with valid bit */
780 u8 xive_pushed; /* Is the VP pushed on the physical CPU ? */
781 u8 xive_esc_on; /* Is the escalation irq enabled ? */
782 union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */
783 u64 xive_esc_raddr; /* Escalation interrupt ESB real addr */
784 u64 xive_esc_vaddr; /* Escalation interrupt ESB virt addr */
785 #endif
786
787 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
788 struct kvm_vcpu_arch_shared shregs;
789
790 struct mmio_hpte_cache mmio_cache;
791 unsigned long pgfault_addr;
792 long pgfault_index;
793 unsigned long pgfault_hpte[2];
794 struct mmio_hpte_cache_entry *pgfault_cache;
795
796 struct task_struct *run_task;
797
798 spinlock_t vpa_update_lock;
799 struct kvmppc_vpa vpa;
800 struct kvmppc_vpa dtl;
801 struct dtl_entry *dtl_ptr;
802 unsigned long dtl_index;
803 u64 stolen_logged;
804 struct kvmppc_vpa slb_shadow;
805
806 spinlock_t tbacct_lock;
807 u64 busy_stolen;
808 u64 busy_preempt;
809
810 u32 emul_inst;
811
812 u32 online;
813
814 /* For support of nested guests */
815 struct kvm_nested_guest *nested;
816 u32 nested_vcpu_id;
817 gpa_t nested_io_gpr;
818 #endif
819
820 #ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
821 struct kvmhv_tb_accumulator *cur_activity; /* What we're timing */
822 u64 cur_tb_start; /* when it started */
823 struct kvmhv_tb_accumulator rm_entry; /* real-mode entry code */
824 struct kvmhv_tb_accumulator rm_intr; /* real-mode intr handling */
825 struct kvmhv_tb_accumulator rm_exit; /* real-mode exit code */
826 struct kvmhv_tb_accumulator guest_time; /* guest execution */
827 struct kvmhv_tb_accumulator cede_time; /* time napping inside guest */
828
829 struct dentry *debugfs_dir;
830 #endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
831 };
832
833 #define VCPU_FPR(vcpu, i) (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
834 #define VCPU_VSX_FPR(vcpu, i, j) ((vcpu)->arch.fp.fpr[i][j])
835 #define VCPU_VSX_VR(vcpu, i) ((vcpu)->arch.vr.vr[i])
836
837 /* Values for vcpu->arch.state */
838 #define KVMPPC_VCPU_NOTREADY 0
839 #define KVMPPC_VCPU_RUNNABLE 1
840 #define KVMPPC_VCPU_BUSY_IN_HOST 2
841
842 /* Values for vcpu->arch.io_gpr */
843 #define KVM_MMIO_REG_MASK 0x003f
844 #define KVM_MMIO_REG_EXT_MASK 0xffc0
845 #define KVM_MMIO_REG_GPR 0x0000
846 #define KVM_MMIO_REG_FPR 0x0040
847 #define KVM_MMIO_REG_QPR 0x0080
848 #define KVM_MMIO_REG_FQPR 0x00c0
849 #define KVM_MMIO_REG_VSX 0x0100
850 #define KVM_MMIO_REG_VMX 0x0180
851 #define KVM_MMIO_REG_NESTED_GPR 0xffc0
852
853
854 #define __KVM_HAVE_ARCH_WQP
855 #define __KVM_HAVE_CREATE_DEVICE
856
kvm_arch_hardware_disable(void)857 static inline void kvm_arch_hardware_disable(void) {}
kvm_arch_hardware_unsetup(void)858 static inline void kvm_arch_hardware_unsetup(void) {}
kvm_arch_sync_events(struct kvm * kvm)859 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
kvm_arch_memslots_updated(struct kvm * kvm,u64 gen)860 static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {}
kvm_arch_flush_shadow_all(struct kvm * kvm)861 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
kvm_arch_sched_in(struct kvm_vcpu * vcpu,int cpu)862 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
kvm_arch_exit(void)863 static inline void kvm_arch_exit(void) {}
kvm_arch_vcpu_blocking(struct kvm_vcpu * vcpu)864 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
kvm_arch_vcpu_unblocking(struct kvm_vcpu * vcpu)865 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
kvm_arch_vcpu_block_finish(struct kvm_vcpu * vcpu)866 static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
867
868 #endif /* __POWERPC_KVM_HOST_H__ */
869