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Linux kernel mirror (for testing)
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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
59extern int kvm_unmap_hva_range(struct kvm *kvm,
60 unsigned long start, unsigned long end,
61 unsigned flags);
62extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
63extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
64extern 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
81struct lppaca;
82struct slb_shadow;
83struct dtl_entry;
84
85struct kvmppc_vcpu_book3s;
86struct kvmppc_book3s_shadow_vcpu;
87struct kvm_nested_guest;
88
89struct kvm_vm_stat {
90 ulong remote_tlb_flush;
91 ulong num_2M_pages;
92 ulong num_1G_pages;
93};
94
95struct 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
137enum 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 */
172struct kvmppc_exit_timing {
173 union {
174 u64 tv64;
175 struct {
176 u32 tbu, tbl;
177 } tv32;
178 };
179};
180
181struct kvmppc_pginfo {
182 unsigned long pfn;
183 atomic_t refcnt;
184};
185
186struct 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
195struct 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 */
209struct kvmppc_xics;
210struct kvmppc_icp;
211extern struct kvm_device_ops kvm_xics_ops;
212
213/* XIVE components, defined in book3s_xive.c */
214struct kvmppc_xive;
215struct kvmppc_xive_vcpu;
216extern struct kvm_device_ops kvm_xive_ops;
217extern struct kvm_device_ops kvm_xive_native_ops;
218
219struct 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 */
229struct 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
259struct kvm_arch_memory_slot {
260#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
261 unsigned long *rmap;
262#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
263};
264
265struct 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
276struct kvm_resize_hpt;
277
278/* Flag values for kvm_arch.secure_guest */
279#define KVMPPC_SECURE_INIT_START 0x1 /* H_SVM_INIT_START has been called */
280#define KVMPPC_SECURE_INIT_DONE 0x2 /* H_SVM_INIT_DONE completed */
281#define KVMPPC_SECURE_INIT_ABORT 0x4 /* H_SVM_INIT_ABORT issued */
282
283struct kvm_arch {
284 unsigned int lpid;
285 unsigned int smt_mode; /* # vcpus per virtual core */
286 unsigned int emul_smt_mode; /* emualted SMT mode, on P9 */
287#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
288 unsigned int tlb_sets;
289 struct kvm_hpt_info hpt;
290 atomic64_t mmio_update;
291 unsigned int host_lpid;
292 unsigned long host_lpcr;
293 unsigned long sdr1;
294 unsigned long host_sdr1;
295 unsigned long lpcr;
296 unsigned long vrma_slb_v;
297 int mmu_ready;
298 atomic_t vcpus_running;
299 u32 online_vcores;
300 atomic_t hpte_mod_interest;
301 cpumask_t need_tlb_flush;
302 cpumask_t cpu_in_guest;
303 u8 radix;
304 u8 fwnmi_enabled;
305 u8 secure_guest;
306 u8 svm_enabled;
307 bool threads_indep;
308 bool nested_enable;
309 bool dawr1_enabled;
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 */
376struct 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
386struct 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
399struct 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
418struct 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 */
434struct 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
442struct kvmppc_irq_map {
443 u32 r_hwirq;
444 u32 v_hwirq;
445 struct irq_desc *desc;
446};
447
448#define KVMPPC_PIRQ_MAPPED 1024
449struct 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
477struct 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
488struct 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
504struct openpic;
505
506/* W0 and W1 of a XIVE thread management context */
507union 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
521struct 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 dawr0;
588 ulong dawrx0;
589 ulong dawr1;
590 ulong dawrx1;
591 ulong ciabr;
592 ulong cfar;
593 ulong ppr;
594 u32 pspb;
595 ulong fscr;
596 ulong shadow_fscr;
597 ulong ebbhr;
598 ulong ebbrr;
599 ulong bescr;
600 ulong csigr;
601 ulong tacr;
602 ulong tcscr;
603 ulong acop;
604 ulong wort;
605 ulong tid;
606 ulong psscr;
607 ulong hfscr;
608 ulong shadow_srr1;
609#endif
610 u32 vrsave; /* also USPRG0 */
611 u32 mmucr;
612 /* shadow_msr is unused for BookE HV */
613 ulong shadow_msr;
614 ulong csrr0;
615 ulong csrr1;
616 ulong dsrr0;
617 ulong dsrr1;
618 ulong mcsrr0;
619 ulong mcsrr1;
620 ulong mcsr;
621 ulong dec;
622#ifdef CONFIG_BOOKE
623 u32 decar;
624#endif
625 /* Time base value when we entered the guest */
626 u64 entry_tb;
627 u64 entry_vtb;
628 u64 entry_ic;
629 u32 tcr;
630 ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
631 u32 ivor[64];
632 ulong ivpr;
633 u32 pvr;
634
635 u32 shadow_pid;
636 u32 shadow_pid1;
637 u32 pid;
638 u32 swap_pid;
639
640 u32 ccr0;
641 u32 ccr1;
642 u32 dbsr;
643
644 u64 mmcr[4]; /* MMCR0, MMCR1, MMCR2, MMCR3 */
645 u64 mmcra;
646 u64 mmcrs;
647 u32 pmc[8];
648 u32 spmc[2];
649 u64 siar;
650 u64 sdar;
651 u64 sier[3];
652#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
653 u64 tfhar;
654 u64 texasr;
655 u64 tfiar;
656 u64 orig_texasr;
657
658 u32 cr_tm;
659 u64 xer_tm;
660 u64 lr_tm;
661 u64 ctr_tm;
662 u64 amr_tm;
663 u64 ppr_tm;
664 u64 dscr_tm;
665 u64 tar_tm;
666
667 ulong gpr_tm[32];
668
669 struct thread_fp_state fp_tm;
670
671 struct thread_vr_state vr_tm;
672 u32 vrsave_tm; /* also USPRG0 */
673#endif
674
675#ifdef CONFIG_KVM_EXIT_TIMING
676 struct mutex exit_timing_lock;
677 struct kvmppc_exit_timing timing_exit;
678 struct kvmppc_exit_timing timing_last_enter;
679 u32 last_exit_type;
680 u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
681 u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
682 u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
683 u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
684 u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
685 u64 timing_last_exit;
686 struct dentry *debugfs_exit_timing;
687#endif
688
689#ifdef CONFIG_PPC_BOOK3S
690 ulong fault_dar;
691 u32 fault_dsisr;
692 unsigned long intr_msr;
693 ulong fault_gpa; /* guest real address of page fault (POWER9) */
694#endif
695
696#ifdef CONFIG_BOOKE
697 ulong fault_dear;
698 ulong fault_esr;
699 ulong queued_dear;
700 ulong queued_esr;
701 spinlock_t wdt_lock;
702 struct timer_list wdt_timer;
703 u32 tlbcfg[4];
704 u32 tlbps[4];
705 u32 mmucfg;
706 u32 eptcfg;
707 u32 epr;
708 u64 sprg9;
709 u32 pwrmgtcr0;
710 u32 crit_save;
711 /* guest debug registers*/
712 struct debug_reg dbg_reg;
713#endif
714 gpa_t paddr_accessed;
715 gva_t vaddr_accessed;
716 pgd_t *pgdir;
717
718 u16 io_gpr; /* GPR used as IO source/target */
719 u8 mmio_host_swabbed;
720 u8 mmio_sign_extend;
721 /* conversion between single and double precision */
722 u8 mmio_sp64_extend;
723 /*
724 * Number of simulations for vsx.
725 * If we use 2*8bytes to simulate 1*16bytes,
726 * then the number should be 2 and
727 * mmio_copy_type=KVMPPC_VSX_COPY_DWORD.
728 * If we use 4*4bytes to simulate 1*16bytes,
729 * the number should be 4 and
730 * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD.
731 */
732 u8 mmio_vsx_copy_nums;
733 u8 mmio_vsx_offset;
734 u8 mmio_vmx_copy_nums;
735 u8 mmio_vmx_offset;
736 u8 mmio_copy_type;
737 u8 osi_needed;
738 u8 osi_enabled;
739 u8 papr_enabled;
740 u8 watchdog_enabled;
741 u8 sane;
742 u8 cpu_type;
743 u8 hcall_needed;
744 u8 epr_flags; /* KVMPPC_EPR_xxx */
745 u8 epr_needed;
746 u8 external_oneshot; /* clear external irq after delivery */
747
748 u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
749
750 struct hrtimer dec_timer;
751 u64 dec_jiffies;
752 u64 dec_expires;
753 unsigned long pending_exceptions;
754 u8 ceded;
755 u8 prodded;
756 u8 doorbell_request;
757 u8 irq_pending; /* Used by XIVE to signal pending guest irqs */
758 u32 last_inst;
759
760 struct rcuwait *waitp;
761 struct kvmppc_vcore *vcore;
762 int ret;
763 int trap;
764 int state;
765 int ptid;
766 int thread_cpu;
767 int prev_cpu;
768 bool timer_running;
769 wait_queue_head_t cpu_run;
770 struct machine_check_event mce_evt; /* Valid if trap == 0x200 */
771
772 struct kvm_vcpu_arch_shared *shared;
773#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
774 bool shared_big_endian;
775#endif
776 unsigned long magic_page_pa; /* phys addr to map the magic page to */
777 unsigned long magic_page_ea; /* effect. addr to map the magic page to */
778 bool disable_kernel_nx;
779
780 int irq_type; /* one of KVM_IRQ_* */
781 int irq_cpu_id;
782 struct openpic *mpic; /* KVM_IRQ_MPIC */
783#ifdef CONFIG_KVM_XICS
784 struct kvmppc_icp *icp; /* XICS presentation controller */
785 struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */
786 __be32 xive_cam_word; /* Cooked W2 in proper endian with valid bit */
787 u8 xive_pushed; /* Is the VP pushed on the physical CPU ? */
788 u8 xive_esc_on; /* Is the escalation irq enabled ? */
789 union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */
790 u64 xive_esc_raddr; /* Escalation interrupt ESB real addr */
791 u64 xive_esc_vaddr; /* Escalation interrupt ESB virt addr */
792#endif
793
794#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
795 struct kvm_vcpu_arch_shared shregs;
796
797 struct mmio_hpte_cache mmio_cache;
798 unsigned long pgfault_addr;
799 long pgfault_index;
800 unsigned long pgfault_hpte[2];
801 struct mmio_hpte_cache_entry *pgfault_cache;
802
803 struct task_struct *run_task;
804
805 spinlock_t vpa_update_lock;
806 struct kvmppc_vpa vpa;
807 struct kvmppc_vpa dtl;
808 struct dtl_entry *dtl_ptr;
809 unsigned long dtl_index;
810 u64 stolen_logged;
811 struct kvmppc_vpa slb_shadow;
812
813 spinlock_t tbacct_lock;
814 u64 busy_stolen;
815 u64 busy_preempt;
816
817 u32 emul_inst;
818
819 u32 online;
820
821 /* For support of nested guests */
822 struct kvm_nested_guest *nested;
823 u32 nested_vcpu_id;
824 gpa_t nested_io_gpr;
825#endif
826
827#ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
828 struct kvmhv_tb_accumulator *cur_activity; /* What we're timing */
829 u64 cur_tb_start; /* when it started */
830 struct kvmhv_tb_accumulator rm_entry; /* real-mode entry code */
831 struct kvmhv_tb_accumulator rm_intr; /* real-mode intr handling */
832 struct kvmhv_tb_accumulator rm_exit; /* real-mode exit code */
833 struct kvmhv_tb_accumulator guest_time; /* guest execution */
834 struct kvmhv_tb_accumulator cede_time; /* time napping inside guest */
835
836 struct dentry *debugfs_dir;
837#endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
838};
839
840#define VCPU_FPR(vcpu, i) (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
841#define VCPU_VSX_FPR(vcpu, i, j) ((vcpu)->arch.fp.fpr[i][j])
842#define VCPU_VSX_VR(vcpu, i) ((vcpu)->arch.vr.vr[i])
843
844/* Values for vcpu->arch.state */
845#define KVMPPC_VCPU_NOTREADY 0
846#define KVMPPC_VCPU_RUNNABLE 1
847#define KVMPPC_VCPU_BUSY_IN_HOST 2
848
849/* Values for vcpu->arch.io_gpr */
850#define KVM_MMIO_REG_MASK 0x003f
851#define KVM_MMIO_REG_EXT_MASK 0xffc0
852#define KVM_MMIO_REG_GPR 0x0000
853#define KVM_MMIO_REG_FPR 0x0040
854#define KVM_MMIO_REG_QPR 0x0080
855#define KVM_MMIO_REG_FQPR 0x00c0
856#define KVM_MMIO_REG_VSX 0x0100
857#define KVM_MMIO_REG_VMX 0x0180
858#define KVM_MMIO_REG_NESTED_GPR 0xffc0
859
860
861#define __KVM_HAVE_ARCH_WQP
862#define __KVM_HAVE_CREATE_DEVICE
863
864static inline void kvm_arch_hardware_disable(void) {}
865static inline void kvm_arch_hardware_unsetup(void) {}
866static inline void kvm_arch_sync_events(struct kvm *kvm) {}
867static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {}
868static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
869static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
870static inline void kvm_arch_exit(void) {}
871static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
872static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
873static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
874
875#endif /* __POWERPC_KVM_HOST_H__ */