1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 *
4 * Copyright IBM Corp. 2007
5 *
6 * Authors: Hollis Blanchard <hollisb@us.ibm.com>
7 */
8
9 #ifndef __POWERPC_KVM_HOST_H__
10 #define __POWERPC_KVM_HOST_H__
11
12 #include <linux/mutex.h>
13 #include <linux/hrtimer.h>
14 #include <linux/interrupt.h>
15 #include <linux/types.h>
16 #include <linux/kvm_types.h>
17 #include <linux/threads.h>
18 #include <linux/spinlock.h>
19 #include <linux/kvm_para.h>
20 #include <linux/list.h>
21 #include <linux/atomic.h>
22 #include <asm/kvm_asm.h>
23 #include <asm/processor.h>
24 #include <asm/page.h>
25 #include <asm/cacheflush.h>
26 #include <asm/hvcall.h>
27 #include <asm/mce.h>
28
29 #define KVM_MAX_VCPUS NR_CPUS
30 #define KVM_MAX_VCORES NR_CPUS
31 #define KVM_USER_MEM_SLOTS 512
32
33 #include <asm/cputhreads.h>
34
35 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
36 #include <asm/kvm_book3s_asm.h> /* for MAX_SMT_THREADS */
37 #define KVM_MAX_VCPU_ID (MAX_SMT_THREADS * KVM_MAX_VCORES)
38 #define KVM_MAX_NESTED_GUESTS KVMPPC_NR_LPIDS
39
40 #else
41 #define KVM_MAX_VCPU_ID KVM_MAX_VCPUS
42 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
43
44 #define __KVM_HAVE_ARCH_INTC_INITIALIZED
45
46 #define KVM_HALT_POLL_NS_DEFAULT 10000 /* 10 us */
47
48 /* These values are internal and can be increased later */
49 #define KVM_NR_IRQCHIPS 1
50 #define KVM_IRQCHIP_NUM_PINS 256
51
52 /* PPC-specific vcpu->requests bit members */
53 #define KVM_REQ_WATCHDOG KVM_ARCH_REQ(0)
54 #define KVM_REQ_EPR_EXIT KVM_ARCH_REQ(1)
55
56 #include <linux/mmu_notifier.h>
57
58 #define KVM_ARCH_WANT_MMU_NOTIFIER
59
60 extern int kvm_unmap_hva_range(struct kvm *kvm,
61 unsigned long start, unsigned long end,
62 unsigned flags);
63 extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
64 extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
65 extern int kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
66
67 #define HPTEG_CACHE_NUM (1 << 15)
68 #define HPTEG_HASH_BITS_PTE 13
69 #define HPTEG_HASH_BITS_PTE_LONG 12
70 #define HPTEG_HASH_BITS_VPTE 13
71 #define HPTEG_HASH_BITS_VPTE_LONG 5
72 #define HPTEG_HASH_BITS_VPTE_64K 11
73 #define HPTEG_HASH_NUM_PTE (1 << HPTEG_HASH_BITS_PTE)
74 #define HPTEG_HASH_NUM_PTE_LONG (1 << HPTEG_HASH_BITS_PTE_LONG)
75 #define HPTEG_HASH_NUM_VPTE (1 << HPTEG_HASH_BITS_VPTE)
76 #define HPTEG_HASH_NUM_VPTE_LONG (1 << HPTEG_HASH_BITS_VPTE_LONG)
77 #define HPTEG_HASH_NUM_VPTE_64K (1 << HPTEG_HASH_BITS_VPTE_64K)
78
79 /* Physical Address Mask - allowed range of real mode RAM access */
80 #define KVM_PAM 0x0fffffffffffffffULL
81
82 struct lppaca;
83 struct slb_shadow;
84 struct dtl_entry;
85
86 struct kvmppc_vcpu_book3s;
87 struct kvmppc_book3s_shadow_vcpu;
88 struct kvm_nested_guest;
89
90 struct kvm_vm_stat {
91 ulong remote_tlb_flush;
92 ulong num_2M_pages;
93 ulong num_1G_pages;
94 };
95
96 struct kvm_vcpu_stat {
97 u64 sum_exits;
98 u64 mmio_exits;
99 u64 signal_exits;
100 u64 light_exits;
101 /* Account for special types of light exits: */
102 u64 itlb_real_miss_exits;
103 u64 itlb_virt_miss_exits;
104 u64 dtlb_real_miss_exits;
105 u64 dtlb_virt_miss_exits;
106 u64 syscall_exits;
107 u64 isi_exits;
108 u64 dsi_exits;
109 u64 emulated_inst_exits;
110 u64 dec_exits;
111 u64 ext_intr_exits;
112 u64 halt_poll_success_ns;
113 u64 halt_poll_fail_ns;
114 u64 halt_wait_ns;
115 u64 halt_successful_poll;
116 u64 halt_attempted_poll;
117 u64 halt_successful_wait;
118 u64 halt_poll_invalid;
119 u64 halt_wakeup;
120 u64 dbell_exits;
121 u64 gdbell_exits;
122 u64 ld;
123 u64 st;
124 #ifdef CONFIG_PPC_BOOK3S
125 u64 pf_storage;
126 u64 pf_instruc;
127 u64 sp_storage;
128 u64 sp_instruc;
129 u64 queue_intr;
130 u64 ld_slow;
131 u64 st_slow;
132 #endif
133 u64 pthru_all;
134 u64 pthru_host;
135 u64 pthru_bad_aff;
136 };
137
138 enum kvm_exit_types {
139 MMIO_EXITS,
140 SIGNAL_EXITS,
141 ITLB_REAL_MISS_EXITS,
142 ITLB_VIRT_MISS_EXITS,
143 DTLB_REAL_MISS_EXITS,
144 DTLB_VIRT_MISS_EXITS,
145 SYSCALL_EXITS,
146 ISI_EXITS,
147 DSI_EXITS,
148 EMULATED_INST_EXITS,
149 EMULATED_MTMSRWE_EXITS,
150 EMULATED_WRTEE_EXITS,
151 EMULATED_MTSPR_EXITS,
152 EMULATED_MFSPR_EXITS,
153 EMULATED_MTMSR_EXITS,
154 EMULATED_MFMSR_EXITS,
155 EMULATED_TLBSX_EXITS,
156 EMULATED_TLBWE_EXITS,
157 EMULATED_RFI_EXITS,
158 EMULATED_RFCI_EXITS,
159 EMULATED_RFDI_EXITS,
160 DEC_EXITS,
161 EXT_INTR_EXITS,
162 HALT_WAKEUP,
163 USR_PR_INST,
164 FP_UNAVAIL,
165 DEBUG_EXITS,
166 TIMEINGUEST,
167 DBELL_EXITS,
168 GDBELL_EXITS,
169 __NUMBER_OF_KVM_EXIT_TYPES
170 };
171
172 /* allow access to big endian 32bit upper/lower parts and 64bit var */
173 struct kvmppc_exit_timing {
174 union {
175 u64 tv64;
176 struct {
177 u32 tbu, tbl;
178 } tv32;
179 };
180 };
181
182 struct kvmppc_pginfo {
183 unsigned long pfn;
184 atomic_t refcnt;
185 };
186
187 struct kvmppc_spapr_tce_iommu_table {
188 struct rcu_head rcu;
189 struct list_head next;
190 struct iommu_table *tbl;
191 struct kref kref;
192 };
193
194 #define TCES_PER_PAGE (PAGE_SIZE / sizeof(u64))
195
196 struct kvmppc_spapr_tce_table {
197 struct list_head list;
198 struct kvm *kvm;
199 u64 liobn;
200 struct rcu_head rcu;
201 u32 page_shift;
202 u64 offset; /* in pages */
203 u64 size; /* window size in pages */
204 struct list_head iommu_tables;
205 struct mutex alloc_lock;
206 struct page *pages[0];
207 };
208
209 /* XICS components, defined in book3s_xics.c */
210 struct kvmppc_xics;
211 struct kvmppc_icp;
212 extern struct kvm_device_ops kvm_xics_ops;
213
214 /* XIVE components, defined in book3s_xive.c */
215 struct kvmppc_xive;
216 struct kvmppc_xive_vcpu;
217 extern struct kvm_device_ops kvm_xive_ops;
218 extern struct kvm_device_ops kvm_xive_native_ops;
219
220 struct kvmppc_passthru_irqmap;
221
222 /*
223 * The reverse mapping array has one entry for each HPTE,
224 * which stores the guest's view of the second word of the HPTE
225 * (including the guest physical address of the mapping),
226 * plus forward and backward pointers in a doubly-linked ring
227 * of HPTEs that map the same host page. The pointers in this
228 * ring are 32-bit HPTE indexes, to save space.
229 */
230 struct revmap_entry {
231 unsigned long guest_rpte;
232 unsigned int forw, back;
233 };
234
235 /*
236 * The rmap array of size number of guest pages is allocated for each memslot.
237 * This array is used to store usage specific information about the guest page.
238 * Below are the encodings of the various possible usage types.
239 */
240 /* Free bits which can be used to define a new usage */
241 #define KVMPPC_RMAP_TYPE_MASK 0xff00000000000000
242 #define KVMPPC_RMAP_NESTED 0xc000000000000000 /* Nested rmap array */
243 #define KVMPPC_RMAP_HPT 0x0100000000000000 /* HPT guest */
244
245 /*
246 * rmap usage definition for a hash page table (hpt) guest:
247 * 0x0000080000000000 Lock bit
248 * 0x0000018000000000 RC bits
249 * 0x0000000100000000 Present bit
250 * 0x00000000ffffffff HPT index bits
251 * The bottom 32 bits are the index in the guest HPT of a HPTE that points to
252 * the page.
253 */
254 #define KVMPPC_RMAP_LOCK_BIT 43
255 #define KVMPPC_RMAP_RC_SHIFT 32
256 #define KVMPPC_RMAP_REFERENCED (HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)
257 #define KVMPPC_RMAP_PRESENT 0x100000000ul
258 #define KVMPPC_RMAP_INDEX 0xfffffffful
259
260 struct kvm_arch_memory_slot {
261 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
262 unsigned long *rmap;
263 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
264 };
265
266 struct kvm_hpt_info {
267 /* Host virtual (linear mapping) address of guest HPT */
268 unsigned long virt;
269 /* Array of reverse mapping entries for each guest HPTE */
270 struct revmap_entry *rev;
271 /* Guest HPT size is 2**(order) bytes */
272 u32 order;
273 /* 1 if HPT allocated with CMA, 0 otherwise */
274 int cma;
275 };
276
277 struct kvm_resize_hpt;
278
279 /* Flag values for kvm_arch.secure_guest */
280 #define KVMPPC_SECURE_INIT_START 0x1 /* H_SVM_INIT_START has been called */
281 #define KVMPPC_SECURE_INIT_DONE 0x2 /* H_SVM_INIT_DONE completed */
282 #define KVMPPC_SECURE_INIT_ABORT 0x4 /* H_SVM_INIT_ABORT issued */
283
284 struct kvm_arch {
285 unsigned int lpid;
286 unsigned int smt_mode; /* # vcpus per virtual core */
287 unsigned int emul_smt_mode; /* emualted SMT mode, on P9 */
288 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
289 unsigned int tlb_sets;
290 struct kvm_hpt_info hpt;
291 atomic64_t mmio_update;
292 unsigned int host_lpid;
293 unsigned long host_lpcr;
294 unsigned long sdr1;
295 unsigned long host_sdr1;
296 unsigned long lpcr;
297 unsigned long vrma_slb_v;
298 int mmu_ready;
299 atomic_t vcpus_running;
300 u32 online_vcores;
301 atomic_t hpte_mod_interest;
302 cpumask_t need_tlb_flush;
303 cpumask_t cpu_in_guest;
304 u8 radix;
305 u8 fwnmi_enabled;
306 u8 secure_guest;
307 u8 svm_enabled;
308 bool threads_indep;
309 bool nested_enable;
310 pgd_t *pgtable;
311 u64 process_table;
312 struct dentry *debugfs_dir;
313 struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */
314 #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
315 #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
316 struct mutex hpt_mutex;
317 #endif
318 #ifdef CONFIG_PPC_BOOK3S_64
319 struct list_head spapr_tce_tables;
320 struct list_head rtas_tokens;
321 struct mutex rtas_token_lock;
322 DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
323 #endif
324 #ifdef CONFIG_KVM_MPIC
325 struct openpic *mpic;
326 #endif
327 #ifdef CONFIG_KVM_XICS
328 struct kvmppc_xics *xics;
329 struct kvmppc_xics *xics_device;
330 struct kvmppc_xive *xive; /* Current XIVE device in use */
331 struct {
332 struct kvmppc_xive *native;
333 struct kvmppc_xive *xics_on_xive;
334 } xive_devices;
335 struct kvmppc_passthru_irqmap *pimap;
336 #endif
337 struct kvmppc_ops *kvm_ops;
338 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
339 struct mutex uvmem_lock;
340 struct list_head uvmem_pfns;
341 struct mutex mmu_setup_lock; /* nests inside vcpu mutexes */
342 u64 l1_ptcr;
343 int max_nested_lpid;
344 struct kvm_nested_guest *nested_guests[KVM_MAX_NESTED_GUESTS];
345 /* This array can grow quite large, keep it at the end */
346 struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
347 #endif
348 };
349
350 #define VCORE_ENTRY_MAP(vc) ((vc)->entry_exit_map & 0xff)
351 #define VCORE_EXIT_MAP(vc) ((vc)->entry_exit_map >> 8)
352 #define VCORE_IS_EXITING(vc) (VCORE_EXIT_MAP(vc) != 0)
353
354 /* This bit is used when a vcore exit is triggered from outside the vcore */
355 #define VCORE_EXIT_REQ 0x10000
356
357 /*
358 * Values for vcore_state.
359 * Note that these are arranged such that lower values
360 * (< VCORE_SLEEPING) don't require stolen time accounting
361 * on load/unload, and higher values do.
362 */
363 #define VCORE_INACTIVE 0
364 #define VCORE_PREEMPT 1
365 #define VCORE_PIGGYBACK 2
366 #define VCORE_SLEEPING 3
367 #define VCORE_RUNNING 4
368 #define VCORE_EXITING 5
369 #define VCORE_POLLING 6
370
371 /*
372 * Struct used to manage memory for a virtual processor area
373 * registered by a PAPR guest. There are three types of area
374 * that a guest can register.
375 */
376 struct kvmppc_vpa {
377 unsigned long gpa; /* Current guest phys addr */
378 void *pinned_addr; /* Address in kernel linear mapping */
379 void *pinned_end; /* End of region */
380 unsigned long next_gpa; /* Guest phys addr for update */
381 unsigned long len; /* Number of bytes required */
382 u8 update_pending; /* 1 => update pinned_addr from next_gpa */
383 bool dirty; /* true => area has been modified by kernel */
384 };
385
386 struct kvmppc_pte {
387 ulong eaddr;
388 u64 vpage;
389 ulong raddr;
390 bool may_read : 1;
391 bool may_write : 1;
392 bool may_execute : 1;
393 unsigned long wimg;
394 unsigned long rc;
395 u8 page_size; /* MMU_PAGE_xxx */
396 u8 page_shift;
397 };
398
399 struct kvmppc_mmu {
400 /* book3s_64 only */
401 void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
402 u64 (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
403 u64 (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
404 int (*slbfee)(struct kvm_vcpu *vcpu, gva_t eaddr, ulong *ret_slb);
405 void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
406 void (*slbia)(struct kvm_vcpu *vcpu);
407 /* book3s */
408 void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
409 u32 (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
410 int (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,
411 struct kvmppc_pte *pte, bool data, bool iswrite);
412 void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
413 int (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
414 u64 (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
415 bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
416 };
417
418 struct kvmppc_slb {
419 u64 esid;
420 u64 vsid;
421 u64 orige;
422 u64 origv;
423 bool valid : 1;
424 bool Ks : 1;
425 bool Kp : 1;
426 bool nx : 1;
427 bool large : 1; /* PTEs are 16MB */
428 bool tb : 1; /* 1TB segment */
429 bool class : 1;
430 u8 base_page_size; /* MMU_PAGE_xxx */
431 };
432
433 /* Struct used to accumulate timing information in HV real mode code */
434 struct kvmhv_tb_accumulator {
435 u64 seqcount; /* used to synchronize access, also count * 2 */
436 u64 tb_total; /* total time in timebase ticks */
437 u64 tb_min; /* min time */
438 u64 tb_max; /* max time */
439 };
440
441 #ifdef CONFIG_PPC_BOOK3S_64
442 struct kvmppc_irq_map {
443 u32 r_hwirq;
444 u32 v_hwirq;
445 struct irq_desc *desc;
446 };
447
448 #define KVMPPC_PIRQ_MAPPED 1024
449 struct kvmppc_passthru_irqmap {
450 int n_mapped;
451 struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED];
452 };
453 #endif
454
455 # ifdef CONFIG_PPC_FSL_BOOK3E
456 #define KVMPPC_BOOKE_IAC_NUM 2
457 #define KVMPPC_BOOKE_DAC_NUM 2
458 # else
459 #define KVMPPC_BOOKE_IAC_NUM 4
460 #define KVMPPC_BOOKE_DAC_NUM 2
461 # endif
462 #define KVMPPC_BOOKE_MAX_IAC 4
463 #define KVMPPC_BOOKE_MAX_DAC 2
464
465 /* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
466 #define KVMPPC_EPR_NONE 0 /* EPR not supported */
467 #define KVMPPC_EPR_USER 1 /* exit to userspace to fill EPR */
468 #define KVMPPC_EPR_KERNEL 2 /* in-kernel irqchip */
469
470 #define KVMPPC_IRQ_DEFAULT 0
471 #define KVMPPC_IRQ_MPIC 1
472 #define KVMPPC_IRQ_XICS 2 /* Includes a XIVE option */
473 #define KVMPPC_IRQ_XIVE 3 /* XIVE native exploitation mode */
474
475 #define MMIO_HPTE_CACHE_SIZE 4
476
477 struct mmio_hpte_cache_entry {
478 unsigned long hpte_v;
479 unsigned long hpte_r;
480 unsigned long rpte;
481 unsigned long pte_index;
482 unsigned long eaddr;
483 unsigned long slb_v;
484 long mmio_update;
485 unsigned int slb_base_pshift;
486 };
487
488 struct mmio_hpte_cache {
489 struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE];
490 unsigned int index;
491 };
492
493 #define KVMPPC_VSX_COPY_NONE 0
494 #define KVMPPC_VSX_COPY_WORD 1
495 #define KVMPPC_VSX_COPY_DWORD 2
496 #define KVMPPC_VSX_COPY_DWORD_LOAD_DUMP 3
497 #define KVMPPC_VSX_COPY_WORD_LOAD_DUMP 4
498
499 #define KVMPPC_VMX_COPY_BYTE 8
500 #define KVMPPC_VMX_COPY_HWORD 9
501 #define KVMPPC_VMX_COPY_WORD 10
502 #define KVMPPC_VMX_COPY_DWORD 11
503
504 struct openpic;
505
506 /* W0 and W1 of a XIVE thread management context */
507 union xive_tma_w01 {
508 struct {
509 u8 nsr;
510 u8 cppr;
511 u8 ipb;
512 u8 lsmfb;
513 u8 ack;
514 u8 inc;
515 u8 age;
516 u8 pipr;
517 };
518 __be64 w01;
519 };
520
521 struct kvm_vcpu_arch {
522 ulong host_stack;
523 u32 host_pid;
524 #ifdef CONFIG_PPC_BOOK3S
525 struct kvmppc_slb slb[64];
526 int slb_max; /* 1 + index of last valid entry in slb[] */
527 int slb_nr; /* total number of entries in SLB */
528 struct kvmppc_mmu mmu;
529 struct kvmppc_vcpu_book3s *book3s;
530 #endif
531 #ifdef CONFIG_PPC_BOOK3S_32
532 struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
533 #endif
534
535 struct pt_regs regs;
536
537 struct thread_fp_state fp;
538
539 #ifdef CONFIG_SPE
540 ulong evr[32];
541 ulong spefscr;
542 ulong host_spefscr;
543 u64 acc;
544 #endif
545 #ifdef CONFIG_ALTIVEC
546 struct thread_vr_state vr;
547 #endif
548
549 #ifdef CONFIG_KVM_BOOKE_HV
550 u32 host_mas4;
551 u32 host_mas6;
552 u32 shadow_epcr;
553 u32 shadow_msrp;
554 u32 eplc;
555 u32 epsc;
556 u32 oldpir;
557 #endif
558
559 #if defined(CONFIG_BOOKE)
560 #if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
561 u32 epcr;
562 #endif
563 #endif
564
565 #ifdef CONFIG_PPC_BOOK3S
566 /* For Gekko paired singles */
567 u32 qpr[32];
568 #endif
569
570 #ifdef CONFIG_PPC_BOOK3S
571 ulong tar;
572 #endif
573
574 #ifdef CONFIG_PPC_BOOK3S
575 ulong hflags;
576 ulong guest_owned_ext;
577 ulong purr;
578 ulong spurr;
579 ulong ic;
580 ulong dscr;
581 ulong amr;
582 ulong uamor;
583 ulong iamr;
584 u32 ctrl;
585 u32 dabrx;
586 ulong dabr;
587 ulong dawr;
588 ulong dawrx;
589 ulong ciabr;
590 ulong cfar;
591 ulong ppr;
592 u32 pspb;
593 ulong fscr;
594 ulong shadow_fscr;
595 ulong ebbhr;
596 ulong ebbrr;
597 ulong bescr;
598 ulong csigr;
599 ulong tacr;
600 ulong tcscr;
601 ulong acop;
602 ulong wort;
603 ulong tid;
604 ulong psscr;
605 ulong hfscr;
606 ulong shadow_srr1;
607 #endif
608 u32 vrsave; /* also USPRG0 */
609 u32 mmucr;
610 /* shadow_msr is unused for BookE HV */
611 ulong shadow_msr;
612 ulong csrr0;
613 ulong csrr1;
614 ulong dsrr0;
615 ulong dsrr1;
616 ulong mcsrr0;
617 ulong mcsrr1;
618 ulong mcsr;
619 ulong dec;
620 #ifdef CONFIG_BOOKE
621 u32 decar;
622 #endif
623 /* Time base value when we entered the guest */
624 u64 entry_tb;
625 u64 entry_vtb;
626 u64 entry_ic;
627 u32 tcr;
628 ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
629 u32 ivor[64];
630 ulong ivpr;
631 u32 pvr;
632
633 u32 shadow_pid;
634 u32 shadow_pid1;
635 u32 pid;
636 u32 swap_pid;
637
638 u32 ccr0;
639 u32 ccr1;
640 u32 dbsr;
641
642 u64 mmcr[4]; /* MMCR0, MMCR1, MMCR2, MMCR3 */
643 u64 mmcra;
644 u64 mmcrs;
645 u32 pmc[8];
646 u32 spmc[2];
647 u64 siar;
648 u64 sdar;
649 u64 sier[3];
650 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
651 u64 tfhar;
652 u64 texasr;
653 u64 tfiar;
654 u64 orig_texasr;
655
656 u32 cr_tm;
657 u64 xer_tm;
658 u64 lr_tm;
659 u64 ctr_tm;
660 u64 amr_tm;
661 u64 ppr_tm;
662 u64 dscr_tm;
663 u64 tar_tm;
664
665 ulong gpr_tm[32];
666
667 struct thread_fp_state fp_tm;
668
669 struct thread_vr_state vr_tm;
670 u32 vrsave_tm; /* also USPRG0 */
671 #endif
672
673 #ifdef CONFIG_KVM_EXIT_TIMING
674 struct mutex exit_timing_lock;
675 struct kvmppc_exit_timing timing_exit;
676 struct kvmppc_exit_timing timing_last_enter;
677 u32 last_exit_type;
678 u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
679 u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
680 u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
681 u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
682 u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
683 u64 timing_last_exit;
684 struct dentry *debugfs_exit_timing;
685 #endif
686
687 #ifdef CONFIG_PPC_BOOK3S
688 ulong fault_dar;
689 u32 fault_dsisr;
690 unsigned long intr_msr;
691 ulong fault_gpa; /* guest real address of page fault (POWER9) */
692 #endif
693
694 #ifdef CONFIG_BOOKE
695 ulong fault_dear;
696 ulong fault_esr;
697 ulong queued_dear;
698 ulong queued_esr;
699 spinlock_t wdt_lock;
700 struct timer_list wdt_timer;
701 u32 tlbcfg[4];
702 u32 tlbps[4];
703 u32 mmucfg;
704 u32 eptcfg;
705 u32 epr;
706 u64 sprg9;
707 u32 pwrmgtcr0;
708 u32 crit_save;
709 /* guest debug registers*/
710 struct debug_reg dbg_reg;
711 #endif
712 gpa_t paddr_accessed;
713 gva_t vaddr_accessed;
714 pgd_t *pgdir;
715
716 u16 io_gpr; /* GPR used as IO source/target */
717 u8 mmio_host_swabbed;
718 u8 mmio_sign_extend;
719 /* conversion between single and double precision */
720 u8 mmio_sp64_extend;
721 /*
722 * Number of simulations for vsx.
723 * If we use 2*8bytes to simulate 1*16bytes,
724 * then the number should be 2 and
725 * mmio_copy_type=KVMPPC_VSX_COPY_DWORD.
726 * If we use 4*4bytes to simulate 1*16bytes,
727 * the number should be 4 and
728 * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD.
729 */
730 u8 mmio_vsx_copy_nums;
731 u8 mmio_vsx_offset;
732 u8 mmio_vmx_copy_nums;
733 u8 mmio_vmx_offset;
734 u8 mmio_copy_type;
735 u8 osi_needed;
736 u8 osi_enabled;
737 u8 papr_enabled;
738 u8 watchdog_enabled;
739 u8 sane;
740 u8 cpu_type;
741 u8 hcall_needed;
742 u8 epr_flags; /* KVMPPC_EPR_xxx */
743 u8 epr_needed;
744 u8 external_oneshot; /* clear external irq after delivery */
745
746 u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
747
748 struct hrtimer dec_timer;
749 u64 dec_jiffies;
750 u64 dec_expires;
751 unsigned long pending_exceptions;
752 u8 ceded;
753 u8 prodded;
754 u8 doorbell_request;
755 u8 irq_pending; /* Used by XIVE to signal pending guest irqs */
756 u32 last_inst;
757
758 struct rcuwait *waitp;
759 struct kvmppc_vcore *vcore;
760 int ret;
761 int trap;
762 int state;
763 int ptid;
764 int thread_cpu;
765 int prev_cpu;
766 bool timer_running;
767 wait_queue_head_t cpu_run;
768 struct machine_check_event mce_evt; /* Valid if trap == 0x200 */
769
770 struct kvm_vcpu_arch_shared *shared;
771 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
772 bool shared_big_endian;
773 #endif
774 unsigned long magic_page_pa; /* phys addr to map the magic page to */
775 unsigned long magic_page_ea; /* effect. addr to map the magic page to */
776 bool disable_kernel_nx;
777
778 int irq_type; /* one of KVM_IRQ_* */
779 int irq_cpu_id;
780 struct openpic *mpic; /* KVM_IRQ_MPIC */
781 #ifdef CONFIG_KVM_XICS
782 struct kvmppc_icp *icp; /* XICS presentation controller */
783 struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */
784 __be32 xive_cam_word; /* Cooked W2 in proper endian with valid bit */
785 u8 xive_pushed; /* Is the VP pushed on the physical CPU ? */
786 u8 xive_esc_on; /* Is the escalation irq enabled ? */
787 union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */
788 u64 xive_esc_raddr; /* Escalation interrupt ESB real addr */
789 u64 xive_esc_vaddr; /* Escalation interrupt ESB virt addr */
790 #endif
791
792 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
793 struct kvm_vcpu_arch_shared shregs;
794
795 struct mmio_hpte_cache mmio_cache;
796 unsigned long pgfault_addr;
797 long pgfault_index;
798 unsigned long pgfault_hpte[2];
799 struct mmio_hpte_cache_entry *pgfault_cache;
800
801 struct task_struct *run_task;
802
803 spinlock_t vpa_update_lock;
804 struct kvmppc_vpa vpa;
805 struct kvmppc_vpa dtl;
806 struct dtl_entry *dtl_ptr;
807 unsigned long dtl_index;
808 u64 stolen_logged;
809 struct kvmppc_vpa slb_shadow;
810
811 spinlock_t tbacct_lock;
812 u64 busy_stolen;
813 u64 busy_preempt;
814
815 u32 emul_inst;
816
817 u32 online;
818
819 /* For support of nested guests */
820 struct kvm_nested_guest *nested;
821 u32 nested_vcpu_id;
822 gpa_t nested_io_gpr;
823 #endif
824
825 #ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
826 struct kvmhv_tb_accumulator *cur_activity; /* What we're timing */
827 u64 cur_tb_start; /* when it started */
828 struct kvmhv_tb_accumulator rm_entry; /* real-mode entry code */
829 struct kvmhv_tb_accumulator rm_intr; /* real-mode intr handling */
830 struct kvmhv_tb_accumulator rm_exit; /* real-mode exit code */
831 struct kvmhv_tb_accumulator guest_time; /* guest execution */
832 struct kvmhv_tb_accumulator cede_time; /* time napping inside guest */
833
834 struct dentry *debugfs_dir;
835 #endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
836 };
837
838 #define VCPU_FPR(vcpu, i) (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
839 #define VCPU_VSX_FPR(vcpu, i, j) ((vcpu)->arch.fp.fpr[i][j])
840 #define VCPU_VSX_VR(vcpu, i) ((vcpu)->arch.vr.vr[i])
841
842 /* Values for vcpu->arch.state */
843 #define KVMPPC_VCPU_NOTREADY 0
844 #define KVMPPC_VCPU_RUNNABLE 1
845 #define KVMPPC_VCPU_BUSY_IN_HOST 2
846
847 /* Values for vcpu->arch.io_gpr */
848 #define KVM_MMIO_REG_MASK 0x003f
849 #define KVM_MMIO_REG_EXT_MASK 0xffc0
850 #define KVM_MMIO_REG_GPR 0x0000
851 #define KVM_MMIO_REG_FPR 0x0040
852 #define KVM_MMIO_REG_QPR 0x0080
853 #define KVM_MMIO_REG_FQPR 0x00c0
854 #define KVM_MMIO_REG_VSX 0x0100
855 #define KVM_MMIO_REG_VMX 0x0180
856 #define KVM_MMIO_REG_NESTED_GPR 0xffc0
857
858
859 #define __KVM_HAVE_ARCH_WQP
860 #define __KVM_HAVE_CREATE_DEVICE
861
kvm_arch_hardware_disable(void)862 static inline void kvm_arch_hardware_disable(void) {}
kvm_arch_hardware_unsetup(void)863 static inline void kvm_arch_hardware_unsetup(void) {}
kvm_arch_sync_events(struct kvm * kvm)864 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
kvm_arch_memslots_updated(struct kvm * kvm,u64 gen)865 static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {}
kvm_arch_flush_shadow_all(struct kvm * kvm)866 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
kvm_arch_sched_in(struct kvm_vcpu * vcpu,int cpu)867 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
kvm_arch_exit(void)868 static inline void kvm_arch_exit(void) {}
kvm_arch_vcpu_blocking(struct kvm_vcpu * vcpu)869 static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
kvm_arch_vcpu_unblocking(struct kvm_vcpu * vcpu)870 static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
kvm_arch_vcpu_block_finish(struct kvm_vcpu * vcpu)871 static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
872
873 #endif /* __POWERPC_KVM_HOST_H__ */
874