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 extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
63 extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
64 extern int kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
65
66 #define HPTEG_CACHE_NUM (1 << 15)
67 #define HPTEG_HASH_BITS_PTE 13
68 #define HPTEG_HASH_BITS_PTE_LONG 12
69 #define HPTEG_HASH_BITS_VPTE 13
70 #define HPTEG_HASH_BITS_VPTE_LONG 5
71 #define HPTEG_HASH_BITS_VPTE_64K 11
72 #define HPTEG_HASH_NUM_PTE (1 << HPTEG_HASH_BITS_PTE)
73 #define HPTEG_HASH_NUM_PTE_LONG (1 << HPTEG_HASH_BITS_PTE_LONG)
74 #define HPTEG_HASH_NUM_VPTE (1 << HPTEG_HASH_BITS_VPTE)
75 #define HPTEG_HASH_NUM_VPTE_LONG (1 << HPTEG_HASH_BITS_VPTE_LONG)
76 #define HPTEG_HASH_NUM_VPTE_64K (1 << HPTEG_HASH_BITS_VPTE_64K)
77
78 /* Physical Address Mask - allowed range of real mode RAM access */
79 #define KVM_PAM 0x0fffffffffffffffULL
80
81 struct lppaca;
82 struct slb_shadow;
83 struct dtl_entry;
84
85 struct kvmppc_vcpu_book3s;
86 struct kvmppc_book3s_shadow_vcpu;
87 struct kvm_nested_guest;
88
89 struct kvm_vm_stat {
90 ulong remote_tlb_flush;
91 ulong num_2M_pages;
92 ulong num_1G_pages;
93 };
94
95 struct kvm_vcpu_stat {
96 u64 sum_exits;
97 u64 mmio_exits;
98 u64 signal_exits;
99 u64 light_exits;
100 /* Account for special types of light exits: */
101 u64 itlb_real_miss_exits;
102 u64 itlb_virt_miss_exits;
103 u64 dtlb_real_miss_exits;
104 u64 dtlb_virt_miss_exits;
105 u64 syscall_exits;
106 u64 isi_exits;
107 u64 dsi_exits;
108 u64 emulated_inst_exits;
109 u64 dec_exits;
110 u64 ext_intr_exits;
111 u64 halt_poll_success_ns;
112 u64 halt_poll_fail_ns;
113 u64 halt_wait_ns;
114 u64 halt_successful_poll;
115 u64 halt_attempted_poll;
116 u64 halt_successful_wait;
117 u64 halt_poll_invalid;
118 u64 halt_wakeup;
119 u64 dbell_exits;
120 u64 gdbell_exits;
121 u64 ld;
122 u64 st;
123 #ifdef CONFIG_PPC_BOOK3S
124 u64 pf_storage;
125 u64 pf_instruc;
126 u64 sp_storage;
127 u64 sp_instruc;
128 u64 queue_intr;
129 u64 ld_slow;
130 u64 st_slow;
131 #endif
132 u64 pthru_all;
133 u64 pthru_host;
134 u64 pthru_bad_aff;
135 };
136
137 enum kvm_exit_types {
138 MMIO_EXITS,
139 SIGNAL_EXITS,
140 ITLB_REAL_MISS_EXITS,
141 ITLB_VIRT_MISS_EXITS,
142 DTLB_REAL_MISS_EXITS,
143 DTLB_VIRT_MISS_EXITS,
144 SYSCALL_EXITS,
145 ISI_EXITS,
146 DSI_EXITS,
147 EMULATED_INST_EXITS,
148 EMULATED_MTMSRWE_EXITS,
149 EMULATED_WRTEE_EXITS,
150 EMULATED_MTSPR_EXITS,
151 EMULATED_MFSPR_EXITS,
152 EMULATED_MTMSR_EXITS,
153 EMULATED_MFMSR_EXITS,
154 EMULATED_TLBSX_EXITS,
155 EMULATED_TLBWE_EXITS,
156 EMULATED_RFI_EXITS,
157 EMULATED_RFCI_EXITS,
158 EMULATED_RFDI_EXITS,
159 DEC_EXITS,
160 EXT_INTR_EXITS,
161 HALT_WAKEUP,
162 USR_PR_INST,
163 FP_UNAVAIL,
164 DEBUG_EXITS,
165 TIMEINGUEST,
166 DBELL_EXITS,
167 GDBELL_EXITS,
168 __NUMBER_OF_KVM_EXIT_TYPES
169 };
170
171 /* allow access to big endian 32bit upper/lower parts and 64bit var */
172 struct kvmppc_exit_timing {
173 union {
174 u64 tv64;
175 struct {
176 u32 tbu, tbl;
177 } tv32;
178 };
179 };
180
181 struct kvmppc_pginfo {
182 unsigned long pfn;
183 atomic_t refcnt;
184 };
185
186 struct kvmppc_spapr_tce_iommu_table {
187 struct rcu_head rcu;
188 struct list_head next;
189 struct iommu_table *tbl;
190 struct kref kref;
191 };
192
193 #define TCES_PER_PAGE (PAGE_SIZE / sizeof(u64))
194
195 struct kvmppc_spapr_tce_table {
196 struct list_head list;
197 struct kvm *kvm;
198 u64 liobn;
199 struct rcu_head rcu;
200 u32 page_shift;
201 u64 offset; /* in pages */
202 u64 size; /* window size in pages */
203 struct list_head iommu_tables;
204 struct mutex alloc_lock;
205 struct page *pages[0];
206 };
207
208 /* XICS components, defined in book3s_xics.c */
209 struct kvmppc_xics;
210 struct kvmppc_icp;
211 extern struct kvm_device_ops kvm_xics_ops;
212
213 /* XIVE components, defined in book3s_xive.c */
214 struct kvmppc_xive;
215 struct kvmppc_xive_vcpu;
216 extern struct kvm_device_ops kvm_xive_ops;
217 extern struct kvm_device_ops kvm_xive_native_ops;
218
219 struct kvmppc_passthru_irqmap;
220
221 /*
222 * The reverse mapping array has one entry for each HPTE,
223 * which stores the guest's view of the second word of the HPTE
224 * (including the guest physical address of the mapping),
225 * plus forward and backward pointers in a doubly-linked ring
226 * of HPTEs that map the same host page. The pointers in this
227 * ring are 32-bit HPTE indexes, to save space.
228 */
229 struct revmap_entry {
230 unsigned long guest_rpte;
231 unsigned int forw, back;
232 };
233
234 /*
235 * The rmap array of size number of guest pages is allocated for each memslot.
236 * This array is used to store usage specific information about the guest page.
237 * Below are the encodings of the various possible usage types.
238 */
239 /* Free bits which can be used to define a new usage */
240 #define KVMPPC_RMAP_TYPE_MASK 0xff00000000000000
241 #define KVMPPC_RMAP_NESTED 0xc000000000000000 /* Nested rmap array */
242 #define KVMPPC_RMAP_HPT 0x0100000000000000 /* HPT guest */
243
244 /*
245 * rmap usage definition for a hash page table (hpt) guest:
246 * 0x0000080000000000 Lock bit
247 * 0x0000018000000000 RC bits
248 * 0x0000000100000000 Present bit
249 * 0x00000000ffffffff HPT index bits
250 * The bottom 32 bits are the index in the guest HPT of a HPTE that points to
251 * the page.
252 */
253 #define KVMPPC_RMAP_LOCK_BIT 43
254 #define KVMPPC_RMAP_RC_SHIFT 32
255 #define KVMPPC_RMAP_REFERENCED (HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)
256 #define KVMPPC_RMAP_PRESENT 0x100000000ul
257 #define KVMPPC_RMAP_INDEX 0xfffffffful
258
259 struct kvm_arch_memory_slot {
260 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
261 unsigned long *rmap;
262 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
263 };
264
265 struct kvm_hpt_info {
266 /* Host virtual (linear mapping) address of guest HPT */
267 unsigned long virt;
268 /* Array of reverse mapping entries for each guest HPTE */
269 struct revmap_entry *rev;
270 /* Guest HPT size is 2**(order) bytes */
271 u32 order;
272 /* 1 if HPT allocated with CMA, 0 otherwise */
273 int cma;
274 };
275
276 struct kvm_resize_hpt;
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 cpumask_t cpu_in_guest;
298 u8 radix;
299 u8 fwnmi_enabled;
300 u8 secure_guest;
301 bool threads_indep;
302 bool nested_enable;
303 pgd_t *pgtable;
304 u64 process_table;
305 struct dentry *debugfs_dir;
306 struct dentry *htab_dentry;
307 struct dentry *radix_dentry;
308 struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */
309 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
310 #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
311 struct mutex hpt_mutex;
312 #endif
313 #ifdef CONFIG_PPC_BOOK3S_64
314 struct list_head spapr_tce_tables;
315 struct list_head rtas_tokens;
316 struct mutex rtas_token_lock;
317 DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
318 #endif
319 #ifdef CONFIG_KVM_MPIC
320 struct openpic *mpic;
321 #endif
322 #ifdef CONFIG_KVM_XICS
323 struct kvmppc_xics *xics;
324 struct kvmppc_xive *xive; /* Current XIVE device in use */
325 struct {
326 struct kvmppc_xive *native;
327 struct kvmppc_xive *xics_on_xive;
328 } xive_devices;
329 struct kvmppc_passthru_irqmap *pimap;
330 #endif
331 struct kvmppc_ops *kvm_ops;
332 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
333 struct mutex mmu_setup_lock; /* nests inside vcpu mutexes */
334 u64 l1_ptcr;
335 int max_nested_lpid;
336 struct kvm_nested_guest *nested_guests[KVM_MAX_NESTED_GUESTS];
337 /* This array can grow quite large, keep it at the end */
338 struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
339 #endif
340 };
341
342 #define VCORE_ENTRY_MAP(vc) ((vc)->entry_exit_map & 0xff)
343 #define VCORE_EXIT_MAP(vc) ((vc)->entry_exit_map >> 8)
344 #define VCORE_IS_EXITING(vc) (VCORE_EXIT_MAP(vc) != 0)
345
346 /* This bit is used when a vcore exit is triggered from outside the vcore */
347 #define VCORE_EXIT_REQ 0x10000
348
349 /*
350 * Values for vcore_state.
351 * Note that these are arranged such that lower values
352 * (< VCORE_SLEEPING) don't require stolen time accounting
353 * on load/unload, and higher values do.
354 */
355 #define VCORE_INACTIVE 0
356 #define VCORE_PREEMPT 1
357 #define VCORE_PIGGYBACK 2
358 #define VCORE_SLEEPING 3
359 #define VCORE_RUNNING 4
360 #define VCORE_EXITING 5
361 #define VCORE_POLLING 6
362
363 /*
364 * Struct used to manage memory for a virtual processor area
365 * registered by a PAPR guest. There are three types of area
366 * that a guest can register.
367 */
368 struct kvmppc_vpa {
369 unsigned long gpa; /* Current guest phys addr */
370 void *pinned_addr; /* Address in kernel linear mapping */
371 void *pinned_end; /* End of region */
372 unsigned long next_gpa; /* Guest phys addr for update */
373 unsigned long len; /* Number of bytes required */
374 u8 update_pending; /* 1 => update pinned_addr from next_gpa */
375 bool dirty; /* true => area has been modified by kernel */
376 };
377
378 struct kvmppc_pte {
379 ulong eaddr;
380 u64 vpage;
381 ulong raddr;
382 bool may_read : 1;
383 bool may_write : 1;
384 bool may_execute : 1;
385 unsigned long wimg;
386 unsigned long rc;
387 u8 page_size; /* MMU_PAGE_xxx */
388 u8 page_shift;
389 };
390
391 struct kvmppc_mmu {
392 /* book3s_64 only */
393 void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
394 u64 (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
395 u64 (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
396 int (*slbfee)(struct kvm_vcpu *vcpu, gva_t eaddr, ulong *ret_slb);
397 void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
398 void (*slbia)(struct kvm_vcpu *vcpu);
399 /* book3s */
400 void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
401 u32 (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
402 int (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,
403 struct kvmppc_pte *pte, bool data, bool iswrite);
404 void (*reset_msr)(struct kvm_vcpu *vcpu);
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 dawr;
581 ulong dawrx;
582 ulong ciabr;
583 ulong cfar;
584 ulong ppr;
585 u32 pspb;
586 ulong fscr;
587 ulong shadow_fscr;
588 ulong ebbhr;
589 ulong ebbrr;
590 ulong bescr;
591 ulong csigr;
592 ulong tacr;
593 ulong tcscr;
594 ulong acop;
595 ulong wort;
596 ulong tid;
597 ulong psscr;
598 ulong hfscr;
599 ulong shadow_srr1;
600 #endif
601 u32 vrsave; /* also USPRG0 */
602 u32 mmucr;
603 /* shadow_msr is unused for BookE HV */
604 ulong shadow_msr;
605 ulong csrr0;
606 ulong csrr1;
607 ulong dsrr0;
608 ulong dsrr1;
609 ulong mcsrr0;
610 ulong mcsrr1;
611 ulong mcsr;
612 ulong dec;
613 #ifdef CONFIG_BOOKE
614 u32 decar;
615 #endif
616 /* Time base value when we entered the guest */
617 u64 entry_tb;
618 u64 entry_vtb;
619 u64 entry_ic;
620 u32 tcr;
621 ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
622 u32 ivor[64];
623 ulong ivpr;
624 u32 pvr;
625
626 u32 shadow_pid;
627 u32 shadow_pid1;
628 u32 pid;
629 u32 swap_pid;
630
631 u32 ccr0;
632 u32 ccr1;
633 u32 dbsr;
634
635 u64 mmcr[5];
636 u32 pmc[8];
637 u32 spmc[2];
638 u64 siar;
639 u64 sdar;
640 u64 sier;
641 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
642 u64 tfhar;
643 u64 texasr;
644 u64 tfiar;
645 u64 orig_texasr;
646
647 u32 cr_tm;
648 u64 xer_tm;
649 u64 lr_tm;
650 u64 ctr_tm;
651 u64 amr_tm;
652 u64 ppr_tm;
653 u64 dscr_tm;
654 u64 tar_tm;
655
656 ulong gpr_tm[32];
657
658 struct thread_fp_state fp_tm;
659
660 struct thread_vr_state vr_tm;
661 u32 vrsave_tm; /* also USPRG0 */
662 #endif
663
664 #ifdef CONFIG_KVM_EXIT_TIMING
665 struct mutex exit_timing_lock;
666 struct kvmppc_exit_timing timing_exit;
667 struct kvmppc_exit_timing timing_last_enter;
668 u32 last_exit_type;
669 u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
670 u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
671 u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
672 u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
673 u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
674 u64 timing_last_exit;
675 struct dentry *debugfs_exit_timing;
676 #endif
677
678 #ifdef CONFIG_PPC_BOOK3S
679 ulong fault_dar;
680 u32 fault_dsisr;
681 unsigned long intr_msr;
682 ulong fault_gpa; /* guest real address of page fault (POWER9) */
683 #endif
684
685 #ifdef CONFIG_BOOKE
686 ulong fault_dear;
687 ulong fault_esr;
688 ulong queued_dear;
689 ulong queued_esr;
690 spinlock_t wdt_lock;
691 struct timer_list wdt_timer;
692 u32 tlbcfg[4];
693 u32 tlbps[4];
694 u32 mmucfg;
695 u32 eptcfg;
696 u32 epr;
697 u64 sprg9;
698 u32 pwrmgtcr0;
699 u32 crit_save;
700 /* guest debug registers*/
701 struct debug_reg dbg_reg;
702 #endif
703 gpa_t paddr_accessed;
704 gva_t vaddr_accessed;
705 pgd_t *pgdir;
706
707 u16 io_gpr; /* GPR used as IO source/target */
708 u8 mmio_host_swabbed;
709 u8 mmio_sign_extend;
710 /* conversion between single and double precision */
711 u8 mmio_sp64_extend;
712 /*
713 * Number of simulations for vsx.
714 * If we use 2*8bytes to simulate 1*16bytes,
715 * then the number should be 2 and
716 * mmio_copy_type=KVMPPC_VSX_COPY_DWORD.
717 * If we use 4*4bytes to simulate 1*16bytes,
718 * the number should be 4 and
719 * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD.
720 */
721 u8 mmio_vsx_copy_nums;
722 u8 mmio_vsx_offset;
723 u8 mmio_vmx_copy_nums;
724 u8 mmio_vmx_offset;
725 u8 mmio_copy_type;
726 u8 osi_needed;
727 u8 osi_enabled;
728 u8 papr_enabled;
729 u8 watchdog_enabled;
730 u8 sane;
731 u8 cpu_type;
732 u8 hcall_needed;
733 u8 epr_flags; /* KVMPPC_EPR_xxx */
734 u8 epr_needed;
735 u8 external_oneshot; /* clear external irq after delivery */
736
737 u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
738
739 struct hrtimer dec_timer;
740 u64 dec_jiffies;
741 u64 dec_expires;
742 unsigned long pending_exceptions;
743 u8 ceded;
744 u8 prodded;
745 u8 doorbell_request;
746 u8 irq_pending; /* Used by XIVE to signal pending guest irqs */
747 u32 last_inst;
748
749 struct swait_queue_head *wqp;
750 struct kvmppc_vcore *vcore;
751 int ret;
752 int trap;
753 int state;
754 int ptid;
755 int thread_cpu;
756 int prev_cpu;
757 bool timer_running;
758 wait_queue_head_t cpu_run;
759 struct machine_check_event mce_evt; /* Valid if trap == 0x200 */
760
761 struct kvm_vcpu_arch_shared *shared;
762 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
763 bool shared_big_endian;
764 #endif
765 unsigned long magic_page_pa; /* phys addr to map the magic page to */
766 unsigned long magic_page_ea; /* effect. addr to map the magic page to */
767 bool disable_kernel_nx;
768
769 int irq_type; /* one of KVM_IRQ_* */
770 int irq_cpu_id;
771 struct openpic *mpic; /* KVM_IRQ_MPIC */
772 #ifdef CONFIG_KVM_XICS
773 struct kvmppc_icp *icp; /* XICS presentation controller */
774 struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */
775 __be32 xive_cam_word; /* Cooked W2 in proper endian with valid bit */
776 u8 xive_pushed; /* Is the VP pushed on the physical CPU ? */
777 u8 xive_esc_on; /* Is the escalation irq enabled ? */
778 union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */
779 u64 xive_esc_raddr; /* Escalation interrupt ESB real addr */
780 u64 xive_esc_vaddr; /* Escalation interrupt ESB virt addr */
781 #endif
782
783 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
784 struct kvm_vcpu_arch_shared shregs;
785
786 struct mmio_hpte_cache mmio_cache;
787 unsigned long pgfault_addr;
788 long pgfault_index;
789 unsigned long pgfault_hpte[2];
790 struct mmio_hpte_cache_entry *pgfault_cache;
791
792 struct task_struct *run_task;
793 struct kvm_run *kvm_run;
794
795 spinlock_t vpa_update_lock;
796 struct kvmppc_vpa vpa;
797 struct kvmppc_vpa dtl;
798 struct dtl_entry *dtl_ptr;
799 unsigned long dtl_index;
800 u64 stolen_logged;
801 struct kvmppc_vpa slb_shadow;
802
803 spinlock_t tbacct_lock;
804 u64 busy_stolen;
805 u64 busy_preempt;
806
807 u32 emul_inst;
808
809 u32 online;
810
811 /* For support of nested guests */
812 struct kvm_nested_guest *nested;
813 u32 nested_vcpu_id;
814 gpa_t nested_io_gpr;
815 #endif
816
817 #ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
818 struct kvmhv_tb_accumulator *cur_activity; /* What we're timing */
819 u64 cur_tb_start; /* when it started */
820 struct kvmhv_tb_accumulator rm_entry; /* real-mode entry code */
821 struct kvmhv_tb_accumulator rm_intr; /* real-mode intr handling */
822 struct kvmhv_tb_accumulator rm_exit; /* real-mode exit code */
823 struct kvmhv_tb_accumulator guest_time; /* guest execution */
824 struct kvmhv_tb_accumulator cede_time; /* time napping inside guest */
825
826 struct dentry *debugfs_dir;
827 struct dentry *debugfs_timings;
828 #endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
829 };
830
831 #define VCPU_FPR(vcpu, i) (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
832 #define VCPU_VSX_FPR(vcpu, i, j) ((vcpu)->arch.fp.fpr[i][j])
833 #define VCPU_VSX_VR(vcpu, i) ((vcpu)->arch.vr.vr[i])
834
835 /* Values for vcpu->arch.state */
836 #define KVMPPC_VCPU_NOTREADY 0
837 #define KVMPPC_VCPU_RUNNABLE 1
838 #define KVMPPC_VCPU_BUSY_IN_HOST 2
839
840 /* Values for vcpu->arch.io_gpr */
841 #define KVM_MMIO_REG_MASK 0x003f
842 #define KVM_MMIO_REG_EXT_MASK 0xffc0
843 #define KVM_MMIO_REG_GPR 0x0000
844 #define KVM_MMIO_REG_FPR 0x0040
845 #define KVM_MMIO_REG_QPR 0x0080
846 #define KVM_MMIO_REG_FQPR 0x00c0
847 #define KVM_MMIO_REG_VSX 0x0100
848 #define KVM_MMIO_REG_VMX 0x0180
849 #define KVM_MMIO_REG_NESTED_GPR 0xffc0
850
851
852 #define __KVM_HAVE_ARCH_WQP
853 #define __KVM_HAVE_CREATE_DEVICE
854
kvm_arch_hardware_disable(void)855 static inline void kvm_arch_hardware_disable(void) {}
kvm_arch_hardware_unsetup(void)856 static inline void kvm_arch_hardware_unsetup(void) {}
kvm_arch_sync_events(struct kvm * kvm)857 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
kvm_arch_memslots_updated(struct kvm * kvm,u64 gen)858 static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {}
kvm_arch_flush_shadow_all(struct kvm * kvm)859 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
kvm_arch_sched_in(struct kvm_vcpu * vcpu,int cpu)860 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
kvm_arch_exit(void)861 static inline void kvm_arch_exit(void) {}
kvm_arch_vcpu_blocking(struct kvm_vcpu * vcpu)862 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
kvm_arch_vcpu_unblocking(struct kvm_vcpu * vcpu)863 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
kvm_arch_vcpu_block_finish(struct kvm_vcpu * vcpu)864 static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
865
866 #endif /* __POWERPC_KVM_HOST_H__ */
867