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 #define KVM_REQ_PENDING_TIMER KVM_ARCH_REQ(2)
55
56 #include <linux/mmu_notifier.h>
57
58 #define KVM_ARCH_WANT_MMU_NOTIFIER
59
60 #define HPTEG_CACHE_NUM (1 << 15)
61 #define HPTEG_HASH_BITS_PTE 13
62 #define HPTEG_HASH_BITS_PTE_LONG 12
63 #define HPTEG_HASH_BITS_VPTE 13
64 #define HPTEG_HASH_BITS_VPTE_LONG 5
65 #define HPTEG_HASH_BITS_VPTE_64K 11
66 #define HPTEG_HASH_NUM_PTE (1 << HPTEG_HASH_BITS_PTE)
67 #define HPTEG_HASH_NUM_PTE_LONG (1 << HPTEG_HASH_BITS_PTE_LONG)
68 #define HPTEG_HASH_NUM_VPTE (1 << HPTEG_HASH_BITS_VPTE)
69 #define HPTEG_HASH_NUM_VPTE_LONG (1 << HPTEG_HASH_BITS_VPTE_LONG)
70 #define HPTEG_HASH_NUM_VPTE_64K (1 << HPTEG_HASH_BITS_VPTE_64K)
71
72 /* Physical Address Mask - allowed range of real mode RAM access */
73 #define KVM_PAM 0x0fffffffffffffffULL
74
75 struct lppaca;
76 struct slb_shadow;
77 struct dtl_entry;
78
79 struct kvmppc_vcpu_book3s;
80 struct kvmppc_book3s_shadow_vcpu;
81 struct kvm_nested_guest;
82
83 struct kvm_vm_stat {
84 struct kvm_vm_stat_generic generic;
85 u64 num_2M_pages;
86 u64 num_1G_pages;
87 };
88
89 struct kvm_vcpu_stat {
90 struct kvm_vcpu_stat_generic generic;
91 u64 sum_exits;
92 u64 mmio_exits;
93 u64 signal_exits;
94 u64 light_exits;
95 /* Account for special types of light exits: */
96 u64 itlb_real_miss_exits;
97 u64 itlb_virt_miss_exits;
98 u64 dtlb_real_miss_exits;
99 u64 dtlb_virt_miss_exits;
100 u64 syscall_exits;
101 u64 isi_exits;
102 u64 dsi_exits;
103 u64 emulated_inst_exits;
104 u64 dec_exits;
105 u64 ext_intr_exits;
106 u64 halt_successful_wait;
107 u64 dbell_exits;
108 u64 gdbell_exits;
109 u64 ld;
110 u64 st;
111 #ifdef CONFIG_PPC_BOOK3S
112 u64 pf_storage;
113 u64 pf_instruc;
114 u64 sp_storage;
115 u64 sp_instruc;
116 u64 queue_intr;
117 u64 ld_slow;
118 u64 st_slow;
119 #endif
120 u64 pthru_all;
121 u64 pthru_host;
122 u64 pthru_bad_aff;
123 };
124
125 enum kvm_exit_types {
126 MMIO_EXITS,
127 SIGNAL_EXITS,
128 ITLB_REAL_MISS_EXITS,
129 ITLB_VIRT_MISS_EXITS,
130 DTLB_REAL_MISS_EXITS,
131 DTLB_VIRT_MISS_EXITS,
132 SYSCALL_EXITS,
133 ISI_EXITS,
134 DSI_EXITS,
135 EMULATED_INST_EXITS,
136 EMULATED_MTMSRWE_EXITS,
137 EMULATED_WRTEE_EXITS,
138 EMULATED_MTSPR_EXITS,
139 EMULATED_MFSPR_EXITS,
140 EMULATED_MTMSR_EXITS,
141 EMULATED_MFMSR_EXITS,
142 EMULATED_TLBSX_EXITS,
143 EMULATED_TLBWE_EXITS,
144 EMULATED_RFI_EXITS,
145 EMULATED_RFCI_EXITS,
146 EMULATED_RFDI_EXITS,
147 DEC_EXITS,
148 EXT_INTR_EXITS,
149 HALT_WAKEUP,
150 USR_PR_INST,
151 FP_UNAVAIL,
152 DEBUG_EXITS,
153 TIMEINGUEST,
154 DBELL_EXITS,
155 GDBELL_EXITS,
156 __NUMBER_OF_KVM_EXIT_TYPES
157 };
158
159 /* allow access to big endian 32bit upper/lower parts and 64bit var */
160 struct kvmppc_exit_timing {
161 union {
162 u64 tv64;
163 struct {
164 u32 tbu, tbl;
165 } tv32;
166 };
167 };
168
169 struct kvmppc_pginfo {
170 unsigned long pfn;
171 atomic_t refcnt;
172 };
173
174 struct kvmppc_spapr_tce_iommu_table {
175 struct rcu_head rcu;
176 struct list_head next;
177 struct iommu_table *tbl;
178 struct kref kref;
179 };
180
181 #define TCES_PER_PAGE (PAGE_SIZE / sizeof(u64))
182
183 struct kvmppc_spapr_tce_table {
184 struct list_head list;
185 struct kvm *kvm;
186 u64 liobn;
187 struct rcu_head rcu;
188 u32 page_shift;
189 u64 offset; /* in pages */
190 u64 size; /* window size in pages */
191 struct list_head iommu_tables;
192 struct mutex alloc_lock;
193 struct page *pages[0];
194 };
195
196 /* XICS components, defined in book3s_xics.c */
197 struct kvmppc_xics;
198 struct kvmppc_icp;
199 extern struct kvm_device_ops kvm_xics_ops;
200
201 /* XIVE components, defined in book3s_xive.c */
202 struct kvmppc_xive;
203 struct kvmppc_xive_vcpu;
204 extern struct kvm_device_ops kvm_xive_ops;
205 extern struct kvm_device_ops kvm_xive_native_ops;
206
207 struct kvmppc_passthru_irqmap;
208
209 /*
210 * The reverse mapping array has one entry for each HPTE,
211 * which stores the guest's view of the second word of the HPTE
212 * (including the guest physical address of the mapping),
213 * plus forward and backward pointers in a doubly-linked ring
214 * of HPTEs that map the same host page. The pointers in this
215 * ring are 32-bit HPTE indexes, to save space.
216 */
217 struct revmap_entry {
218 unsigned long guest_rpte;
219 unsigned int forw, back;
220 };
221
222 /*
223 * The rmap array of size number of guest pages is allocated for each memslot.
224 * This array is used to store usage specific information about the guest page.
225 * Below are the encodings of the various possible usage types.
226 */
227 /* Free bits which can be used to define a new usage */
228 #define KVMPPC_RMAP_TYPE_MASK 0xff00000000000000
229 #define KVMPPC_RMAP_NESTED 0xc000000000000000 /* Nested rmap array */
230 #define KVMPPC_RMAP_HPT 0x0100000000000000 /* HPT guest */
231
232 /*
233 * rmap usage definition for a hash page table (hpt) guest:
234 * 0x0000080000000000 Lock bit
235 * 0x0000018000000000 RC bits
236 * 0x0000000100000000 Present bit
237 * 0x00000000ffffffff HPT index bits
238 * The bottom 32 bits are the index in the guest HPT of a HPTE that points to
239 * the page.
240 */
241 #define KVMPPC_RMAP_LOCK_BIT 43
242 #define KVMPPC_RMAP_RC_SHIFT 32
243 #define KVMPPC_RMAP_REFERENCED (HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)
244 #define KVMPPC_RMAP_PRESENT 0x100000000ul
245 #define KVMPPC_RMAP_INDEX 0xfffffffful
246
247 struct kvm_arch_memory_slot {
248 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
249 unsigned long *rmap;
250 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
251 };
252
253 struct kvm_hpt_info {
254 /* Host virtual (linear mapping) address of guest HPT */
255 unsigned long virt;
256 /* Array of reverse mapping entries for each guest HPTE */
257 struct revmap_entry *rev;
258 /* Guest HPT size is 2**(order) bytes */
259 u32 order;
260 /* 1 if HPT allocated with CMA, 0 otherwise */
261 int cma;
262 };
263
264 struct kvm_resize_hpt;
265
266 /* Flag values for kvm_arch.secure_guest */
267 #define KVMPPC_SECURE_INIT_START 0x1 /* H_SVM_INIT_START has been called */
268 #define KVMPPC_SECURE_INIT_DONE 0x2 /* H_SVM_INIT_DONE completed */
269 #define KVMPPC_SECURE_INIT_ABORT 0x4 /* H_SVM_INIT_ABORT issued */
270
271 struct kvm_arch {
272 unsigned int lpid;
273 unsigned int smt_mode; /* # vcpus per virtual core */
274 unsigned int emul_smt_mode; /* emualted SMT mode, on P9 */
275 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
276 unsigned int tlb_sets;
277 struct kvm_hpt_info hpt;
278 atomic64_t mmio_update;
279 unsigned int host_lpid;
280 unsigned long host_lpcr;
281 unsigned long sdr1;
282 unsigned long host_sdr1;
283 unsigned long lpcr;
284 unsigned long vrma_slb_v;
285 int mmu_ready;
286 atomic_t vcpus_running;
287 u32 online_vcores;
288 atomic_t hpte_mod_interest;
289 cpumask_t need_tlb_flush;
290 cpumask_t cpu_in_guest;
291 u8 radix;
292 u8 fwnmi_enabled;
293 u8 secure_guest;
294 u8 svm_enabled;
295 bool nested_enable;
296 bool dawr1_enabled;
297 pgd_t *pgtable;
298 u64 process_table;
299 struct dentry *debugfs_dir;
300 struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */
301 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
302 #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
303 struct mutex hpt_mutex;
304 #endif
305 #ifdef CONFIG_PPC_BOOK3S_64
306 struct list_head spapr_tce_tables;
307 struct list_head rtas_tokens;
308 struct mutex rtas_token_lock;
309 DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
310 #endif
311 #ifdef CONFIG_KVM_MPIC
312 struct openpic *mpic;
313 #endif
314 #ifdef CONFIG_KVM_XICS
315 struct kvmppc_xics *xics;
316 struct kvmppc_xics *xics_device;
317 struct kvmppc_xive *xive; /* Current XIVE device in use */
318 struct {
319 struct kvmppc_xive *native;
320 struct kvmppc_xive *xics_on_xive;
321 } xive_devices;
322 struct kvmppc_passthru_irqmap *pimap;
323 #endif
324 struct kvmppc_ops *kvm_ops;
325 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
326 struct mutex uvmem_lock;
327 struct list_head uvmem_pfns;
328 struct mutex mmu_setup_lock; /* nests inside vcpu mutexes */
329 u64 l1_ptcr;
330 int max_nested_lpid;
331 struct kvm_nested_guest *nested_guests[KVM_MAX_NESTED_GUESTS];
332 /* This array can grow quite large, keep it at the end */
333 struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
334 #endif
335 };
336
337 #define VCORE_ENTRY_MAP(vc) ((vc)->entry_exit_map & 0xff)
338 #define VCORE_EXIT_MAP(vc) ((vc)->entry_exit_map >> 8)
339 #define VCORE_IS_EXITING(vc) (VCORE_EXIT_MAP(vc) != 0)
340
341 /* This bit is used when a vcore exit is triggered from outside the vcore */
342 #define VCORE_EXIT_REQ 0x10000
343
344 /*
345 * Values for vcore_state.
346 * Note that these are arranged such that lower values
347 * (< VCORE_SLEEPING) don't require stolen time accounting
348 * on load/unload, and higher values do.
349 */
350 #define VCORE_INACTIVE 0
351 #define VCORE_PREEMPT 1
352 #define VCORE_PIGGYBACK 2
353 #define VCORE_SLEEPING 3
354 #define VCORE_RUNNING 4
355 #define VCORE_EXITING 5
356 #define VCORE_POLLING 6
357
358 /*
359 * Struct used to manage memory for a virtual processor area
360 * registered by a PAPR guest. There are three types of area
361 * that a guest can register.
362 */
363 struct kvmppc_vpa {
364 unsigned long gpa; /* Current guest phys addr */
365 void *pinned_addr; /* Address in kernel linear mapping */
366 void *pinned_end; /* End of region */
367 unsigned long next_gpa; /* Guest phys addr for update */
368 unsigned long len; /* Number of bytes required */
369 u8 update_pending; /* 1 => update pinned_addr from next_gpa */
370 bool dirty; /* true => area has been modified by kernel */
371 };
372
373 struct kvmppc_pte {
374 ulong eaddr;
375 u64 vpage;
376 ulong raddr;
377 bool may_read : 1;
378 bool may_write : 1;
379 bool may_execute : 1;
380 unsigned long wimg;
381 unsigned long rc;
382 u8 page_size; /* MMU_PAGE_xxx */
383 u8 page_shift;
384 };
385
386 struct kvmppc_mmu {
387 /* book3s_64 only */
388 void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
389 u64 (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
390 u64 (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
391 int (*slbfee)(struct kvm_vcpu *vcpu, gva_t eaddr, ulong *ret_slb);
392 void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
393 void (*slbia)(struct kvm_vcpu *vcpu);
394 /* book3s */
395 void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
396 u32 (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
397 int (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,
398 struct kvmppc_pte *pte, bool data, bool iswrite);
399 void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
400 int (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
401 u64 (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
402 bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
403 };
404
405 struct kvmppc_slb {
406 u64 esid;
407 u64 vsid;
408 u64 orige;
409 u64 origv;
410 bool valid : 1;
411 bool Ks : 1;
412 bool Kp : 1;
413 bool nx : 1;
414 bool large : 1; /* PTEs are 16MB */
415 bool tb : 1; /* 1TB segment */
416 bool class : 1;
417 u8 base_page_size; /* MMU_PAGE_xxx */
418 };
419
420 /* Struct used to accumulate timing information in HV real mode code */
421 struct kvmhv_tb_accumulator {
422 u64 seqcount; /* used to synchronize access, also count * 2 */
423 u64 tb_total; /* total time in timebase ticks */
424 u64 tb_min; /* min time */
425 u64 tb_max; /* max time */
426 };
427
428 #ifdef CONFIG_PPC_BOOK3S_64
429 struct kvmppc_irq_map {
430 u32 r_hwirq;
431 u32 v_hwirq;
432 struct irq_desc *desc;
433 };
434
435 #define KVMPPC_PIRQ_MAPPED 1024
436 struct kvmppc_passthru_irqmap {
437 int n_mapped;
438 struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED];
439 };
440 #endif
441
442 # ifdef CONFIG_PPC_FSL_BOOK3E
443 #define KVMPPC_BOOKE_IAC_NUM 2
444 #define KVMPPC_BOOKE_DAC_NUM 2
445 # else
446 #define KVMPPC_BOOKE_IAC_NUM 4
447 #define KVMPPC_BOOKE_DAC_NUM 2
448 # endif
449 #define KVMPPC_BOOKE_MAX_IAC 4
450 #define KVMPPC_BOOKE_MAX_DAC 2
451
452 /* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
453 #define KVMPPC_EPR_NONE 0 /* EPR not supported */
454 #define KVMPPC_EPR_USER 1 /* exit to userspace to fill EPR */
455 #define KVMPPC_EPR_KERNEL 2 /* in-kernel irqchip */
456
457 #define KVMPPC_IRQ_DEFAULT 0
458 #define KVMPPC_IRQ_MPIC 1
459 #define KVMPPC_IRQ_XICS 2 /* Includes a XIVE option */
460 #define KVMPPC_IRQ_XIVE 3 /* XIVE native exploitation mode */
461
462 #define MMIO_HPTE_CACHE_SIZE 4
463
464 struct mmio_hpte_cache_entry {
465 unsigned long hpte_v;
466 unsigned long hpte_r;
467 unsigned long rpte;
468 unsigned long pte_index;
469 unsigned long eaddr;
470 unsigned long slb_v;
471 long mmio_update;
472 unsigned int slb_base_pshift;
473 };
474
475 struct mmio_hpte_cache {
476 struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE];
477 unsigned int index;
478 };
479
480 #define KVMPPC_VSX_COPY_NONE 0
481 #define KVMPPC_VSX_COPY_WORD 1
482 #define KVMPPC_VSX_COPY_DWORD 2
483 #define KVMPPC_VSX_COPY_DWORD_LOAD_DUMP 3
484 #define KVMPPC_VSX_COPY_WORD_LOAD_DUMP 4
485
486 #define KVMPPC_VMX_COPY_BYTE 8
487 #define KVMPPC_VMX_COPY_HWORD 9
488 #define KVMPPC_VMX_COPY_WORD 10
489 #define KVMPPC_VMX_COPY_DWORD 11
490
491 struct openpic;
492
493 /* W0 and W1 of a XIVE thread management context */
494 union xive_tma_w01 {
495 struct {
496 u8 nsr;
497 u8 cppr;
498 u8 ipb;
499 u8 lsmfb;
500 u8 ack;
501 u8 inc;
502 u8 age;
503 u8 pipr;
504 };
505 __be64 w01;
506 };
507
508 struct kvm_vcpu_arch {
509 ulong host_stack;
510 u32 host_pid;
511 #ifdef CONFIG_PPC_BOOK3S
512 struct kvmppc_slb slb[64];
513 int slb_max; /* 1 + index of last valid entry in slb[] */
514 int slb_nr; /* total number of entries in SLB */
515 struct kvmppc_mmu mmu;
516 struct kvmppc_vcpu_book3s *book3s;
517 #endif
518 #ifdef CONFIG_PPC_BOOK3S_32
519 struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
520 #endif
521
522 struct pt_regs regs;
523
524 struct thread_fp_state fp;
525
526 #ifdef CONFIG_SPE
527 ulong evr[32];
528 ulong spefscr;
529 ulong host_spefscr;
530 u64 acc;
531 #endif
532 #ifdef CONFIG_ALTIVEC
533 struct thread_vr_state vr;
534 #endif
535
536 #ifdef CONFIG_KVM_BOOKE_HV
537 u32 host_mas4;
538 u32 host_mas6;
539 u32 shadow_epcr;
540 u32 shadow_msrp;
541 u32 eplc;
542 u32 epsc;
543 u32 oldpir;
544 #endif
545
546 #if defined(CONFIG_BOOKE)
547 #if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
548 u32 epcr;
549 #endif
550 #endif
551
552 #ifdef CONFIG_PPC_BOOK3S
553 /* For Gekko paired singles */
554 u32 qpr[32];
555 #endif
556
557 #ifdef CONFIG_PPC_BOOK3S
558 ulong tar;
559 #endif
560
561 #ifdef CONFIG_PPC_BOOK3S
562 ulong hflags;
563 ulong guest_owned_ext;
564 ulong purr;
565 ulong spurr;
566 ulong ic;
567 ulong dscr;
568 ulong amr;
569 ulong uamor;
570 ulong iamr;
571 u32 ctrl;
572 u32 dabrx;
573 ulong dabr;
574 ulong dawr0;
575 ulong dawrx0;
576 ulong dawr1;
577 ulong dawrx1;
578 ulong ciabr;
579 ulong cfar;
580 ulong ppr;
581 u32 pspb;
582 ulong fscr;
583 ulong shadow_fscr;
584 ulong ebbhr;
585 ulong ebbrr;
586 ulong bescr;
587 ulong csigr;
588 ulong tacr;
589 ulong tcscr;
590 ulong acop;
591 ulong wort;
592 ulong tid;
593 ulong psscr;
594 ulong hfscr;
595 ulong shadow_srr1;
596 #endif
597 u32 vrsave; /* also USPRG0 */
598 u32 mmucr;
599 /* shadow_msr is unused for BookE HV */
600 ulong shadow_msr;
601 ulong csrr0;
602 ulong csrr1;
603 ulong dsrr0;
604 ulong dsrr1;
605 ulong mcsrr0;
606 ulong mcsrr1;
607 ulong mcsr;
608 ulong dec;
609 #ifdef CONFIG_BOOKE
610 u32 decar;
611 #endif
612 /* Time base value when we entered the guest */
613 u64 entry_tb;
614 u64 entry_vtb;
615 u64 entry_ic;
616 u32 tcr;
617 ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
618 u32 ivor[64];
619 ulong ivpr;
620 u32 pvr;
621
622 u32 shadow_pid;
623 u32 shadow_pid1;
624 u32 pid;
625 u32 swap_pid;
626
627 u32 ccr0;
628 u32 ccr1;
629 u32 dbsr;
630
631 u64 mmcr[4]; /* MMCR0, MMCR1, MMCR2, MMCR3 */
632 u64 mmcra;
633 u64 mmcrs;
634 u32 pmc[8];
635 u32 spmc[2];
636 u64 siar;
637 u64 sdar;
638 u64 sier[3];
639 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
640 u64 tfhar;
641 u64 texasr;
642 u64 tfiar;
643 u64 orig_texasr;
644
645 u32 cr_tm;
646 u64 xer_tm;
647 u64 lr_tm;
648 u64 ctr_tm;
649 u64 amr_tm;
650 u64 ppr_tm;
651 u64 dscr_tm;
652 u64 tar_tm;
653
654 ulong gpr_tm[32];
655
656 struct thread_fp_state fp_tm;
657
658 struct thread_vr_state vr_tm;
659 u32 vrsave_tm; /* also USPRG0 */
660 #endif
661
662 #ifdef CONFIG_KVM_EXIT_TIMING
663 struct mutex exit_timing_lock;
664 struct kvmppc_exit_timing timing_exit;
665 struct kvmppc_exit_timing timing_last_enter;
666 u32 last_exit_type;
667 u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
668 u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
669 u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
670 u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
671 u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
672 u64 timing_last_exit;
673 struct dentry *debugfs_exit_timing;
674 #endif
675
676 #ifdef CONFIG_PPC_BOOK3S
677 ulong fault_dar;
678 u32 fault_dsisr;
679 unsigned long intr_msr;
680 /*
681 * POWER9 and later: fault_gpa contains the guest real address of page
682 * fault for a radix guest, or segment descriptor (equivalent to result
683 * from slbmfev of SLB entry that translated the EA) for hash guests.
684 */
685 ulong fault_gpa;
686 #endif
687
688 #ifdef CONFIG_BOOKE
689 ulong fault_dear;
690 ulong fault_esr;
691 ulong queued_dear;
692 ulong queued_esr;
693 spinlock_t wdt_lock;
694 struct timer_list wdt_timer;
695 u32 tlbcfg[4];
696 u32 tlbps[4];
697 u32 mmucfg;
698 u32 eptcfg;
699 u32 epr;
700 u64 sprg9;
701 u32 pwrmgtcr0;
702 u32 crit_save;
703 /* guest debug registers*/
704 struct debug_reg dbg_reg;
705 #endif
706 gpa_t paddr_accessed;
707 gva_t vaddr_accessed;
708 pgd_t *pgdir;
709
710 u16 io_gpr; /* GPR used as IO source/target */
711 u8 mmio_host_swabbed;
712 u8 mmio_sign_extend;
713 /* conversion between single and double precision */
714 u8 mmio_sp64_extend;
715 /*
716 * Number of simulations for vsx.
717 * If we use 2*8bytes to simulate 1*16bytes,
718 * then the number should be 2 and
719 * mmio_copy_type=KVMPPC_VSX_COPY_DWORD.
720 * If we use 4*4bytes to simulate 1*16bytes,
721 * the number should be 4 and
722 * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD.
723 */
724 u8 mmio_vsx_copy_nums;
725 u8 mmio_vsx_offset;
726 u8 mmio_vmx_copy_nums;
727 u8 mmio_vmx_offset;
728 u8 mmio_copy_type;
729 u8 osi_needed;
730 u8 osi_enabled;
731 u8 papr_enabled;
732 u8 watchdog_enabled;
733 u8 sane;
734 u8 cpu_type;
735 u8 hcall_needed;
736 u8 epr_flags; /* KVMPPC_EPR_xxx */
737 u8 epr_needed;
738 u8 external_oneshot; /* clear external irq after delivery */
739
740 u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
741
742 struct hrtimer dec_timer;
743 u64 dec_jiffies;
744 u64 dec_expires;
745 unsigned long pending_exceptions;
746 u8 ceded;
747 u8 prodded;
748 u8 doorbell_request;
749 u8 irq_pending; /* Used by XIVE to signal pending guest irqs */
750 u32 last_inst;
751
752 struct rcuwait *waitp;
753 struct kvmppc_vcore *vcore;
754 int ret;
755 int trap;
756 int state;
757 int ptid;
758 int thread_cpu;
759 int prev_cpu;
760 bool timer_running;
761 wait_queue_head_t cpu_run;
762 struct machine_check_event mce_evt; /* Valid if trap == 0x200 */
763
764 struct kvm_vcpu_arch_shared *shared;
765 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
766 bool shared_big_endian;
767 #endif
768 unsigned long magic_page_pa; /* phys addr to map the magic page to */
769 unsigned long magic_page_ea; /* effect. addr to map the magic page to */
770 bool disable_kernel_nx;
771
772 int irq_type; /* one of KVM_IRQ_* */
773 int irq_cpu_id;
774 struct openpic *mpic; /* KVM_IRQ_MPIC */
775 #ifdef CONFIG_KVM_XICS
776 struct kvmppc_icp *icp; /* XICS presentation controller */
777 struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */
778 __be32 xive_cam_word; /* Cooked W2 in proper endian with valid bit */
779 u8 xive_pushed; /* Is the VP pushed on the physical CPU ? */
780 u8 xive_esc_on; /* Is the escalation irq enabled ? */
781 union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */
782 u64 xive_esc_raddr; /* Escalation interrupt ESB real addr */
783 u64 xive_esc_vaddr; /* Escalation interrupt ESB virt addr */
784 #endif
785
786 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
787 struct kvm_vcpu_arch_shared shregs;
788
789 struct mmio_hpte_cache mmio_cache;
790 unsigned long pgfault_addr;
791 long pgfault_index;
792 unsigned long pgfault_hpte[2];
793 struct mmio_hpte_cache_entry *pgfault_cache;
794
795 struct task_struct *run_task;
796
797 spinlock_t vpa_update_lock;
798 struct kvmppc_vpa vpa;
799 struct kvmppc_vpa dtl;
800 struct dtl_entry *dtl_ptr;
801 unsigned long dtl_index;
802 u64 stolen_logged;
803 struct kvmppc_vpa slb_shadow;
804
805 spinlock_t tbacct_lock;
806 u64 busy_stolen;
807 u64 busy_preempt;
808
809 u32 emul_inst;
810
811 u32 online;
812
813 u64 hfscr_permitted; /* A mask of permitted HFSCR facilities */
814
815 /* For support of nested guests */
816 struct kvm_nested_guest *nested;
817 u64 nested_hfscr; /* HFSCR that the L1 requested for the nested guest */
818 u32 nested_vcpu_id;
819 gpa_t nested_io_gpr;
820 #endif
821
822 #ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
823 struct kvmhv_tb_accumulator *cur_activity; /* What we're timing */
824 u64 cur_tb_start; /* when it started */
825 struct kvmhv_tb_accumulator rm_entry; /* real-mode entry code */
826 struct kvmhv_tb_accumulator rm_intr; /* real-mode intr handling */
827 struct kvmhv_tb_accumulator rm_exit; /* real-mode exit code */
828 struct kvmhv_tb_accumulator guest_time; /* guest execution */
829 struct kvmhv_tb_accumulator cede_time; /* time napping inside guest */
830
831 struct dentry *debugfs_dir;
832 #endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
833 };
834
835 #define VCPU_FPR(vcpu, i) (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
836 #define VCPU_VSX_FPR(vcpu, i, j) ((vcpu)->arch.fp.fpr[i][j])
837 #define VCPU_VSX_VR(vcpu, i) ((vcpu)->arch.vr.vr[i])
838
839 /* Values for vcpu->arch.state */
840 #define KVMPPC_VCPU_NOTREADY 0
841 #define KVMPPC_VCPU_RUNNABLE 1
842 #define KVMPPC_VCPU_BUSY_IN_HOST 2
843
844 /* Values for vcpu->arch.io_gpr */
845 #define KVM_MMIO_REG_MASK 0x003f
846 #define KVM_MMIO_REG_EXT_MASK 0xffc0
847 #define KVM_MMIO_REG_GPR 0x0000
848 #define KVM_MMIO_REG_FPR 0x0040
849 #define KVM_MMIO_REG_QPR 0x0080
850 #define KVM_MMIO_REG_FQPR 0x00c0
851 #define KVM_MMIO_REG_VSX 0x0100
852 #define KVM_MMIO_REG_VMX 0x0180
853 #define KVM_MMIO_REG_NESTED_GPR 0xffc0
854
855
856 #define __KVM_HAVE_ARCH_WQP
857 #define __KVM_HAVE_CREATE_DEVICE
858
kvm_arch_hardware_disable(void)859 static inline void kvm_arch_hardware_disable(void) {}
kvm_arch_hardware_unsetup(void)860 static inline void kvm_arch_hardware_unsetup(void) {}
kvm_arch_sync_events(struct kvm * kvm)861 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
kvm_arch_memslots_updated(struct kvm * kvm,u64 gen)862 static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {}
kvm_arch_flush_shadow_all(struct kvm * kvm)863 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
kvm_arch_sched_in(struct kvm_vcpu * vcpu,int cpu)864 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
kvm_arch_exit(void)865 static inline void kvm_arch_exit(void) {}
kvm_arch_vcpu_blocking(struct kvm_vcpu * vcpu)866 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
kvm_arch_vcpu_unblocking(struct kvm_vcpu * vcpu)867 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
kvm_arch_vcpu_block_finish(struct kvm_vcpu * vcpu)868 static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
869
870 #endif /* __POWERPC_KVM_HOST_H__ */
871