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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#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
60extern int kvm_unmap_hva_range(struct kvm *kvm,
61 unsigned long start, unsigned long end);
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
282struct kvm_arch {
283 unsigned int lpid;
284 unsigned int smt_mode; /* # vcpus per virtual core */
285 unsigned int emul_smt_mode; /* emualted SMT mode, on P9 */
286#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
287 unsigned int tlb_sets;
288 struct kvm_hpt_info hpt;
289 atomic64_t mmio_update;
290 unsigned int host_lpid;
291 unsigned long host_lpcr;
292 unsigned long sdr1;
293 unsigned long host_sdr1;
294 unsigned long lpcr;
295 unsigned long vrma_slb_v;
296 int mmu_ready;
297 atomic_t vcpus_running;
298 u32 online_vcores;
299 atomic_t hpte_mod_interest;
300 cpumask_t need_tlb_flush;
301 cpumask_t cpu_in_guest;
302 u8 radix;
303 u8 fwnmi_enabled;
304 u8 secure_guest;
305 bool threads_indep;
306 bool nested_enable;
307 pgd_t *pgtable;
308 u64 process_table;
309 struct dentry *debugfs_dir;
310 struct dentry *htab_dentry;
311 struct dentry *radix_dentry;
312 struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */
313#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
314#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
315 struct mutex hpt_mutex;
316#endif
317#ifdef CONFIG_PPC_BOOK3S_64
318 struct list_head spapr_tce_tables;
319 struct list_head rtas_tokens;
320 struct mutex rtas_token_lock;
321 DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
322#endif
323#ifdef CONFIG_KVM_MPIC
324 struct openpic *mpic;
325#endif
326#ifdef CONFIG_KVM_XICS
327 struct kvmppc_xics *xics;
328 struct kvmppc_xive *xive; /* Current XIVE device in use */
329 struct {
330 struct kvmppc_xive *native;
331 struct kvmppc_xive *xics_on_xive;
332 } xive_devices;
333 struct kvmppc_passthru_irqmap *pimap;
334#endif
335 struct kvmppc_ops *kvm_ops;
336#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
337 struct mutex uvmem_lock;
338 struct list_head uvmem_pfns;
339 struct mutex mmu_setup_lock; /* nests inside vcpu mutexes */
340 u64 l1_ptcr;
341 int max_nested_lpid;
342 struct kvm_nested_guest *nested_guests[KVM_MAX_NESTED_GUESTS];
343 /* This array can grow quite large, keep it at the end */
344 struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
345#endif
346};
347
348#define VCORE_ENTRY_MAP(vc) ((vc)->entry_exit_map & 0xff)
349#define VCORE_EXIT_MAP(vc) ((vc)->entry_exit_map >> 8)
350#define VCORE_IS_EXITING(vc) (VCORE_EXIT_MAP(vc) != 0)
351
352/* This bit is used when a vcore exit is triggered from outside the vcore */
353#define VCORE_EXIT_REQ 0x10000
354
355/*
356 * Values for vcore_state.
357 * Note that these are arranged such that lower values
358 * (< VCORE_SLEEPING) don't require stolen time accounting
359 * on load/unload, and higher values do.
360 */
361#define VCORE_INACTIVE 0
362#define VCORE_PREEMPT 1
363#define VCORE_PIGGYBACK 2
364#define VCORE_SLEEPING 3
365#define VCORE_RUNNING 4
366#define VCORE_EXITING 5
367#define VCORE_POLLING 6
368
369/*
370 * Struct used to manage memory for a virtual processor area
371 * registered by a PAPR guest. There are three types of area
372 * that a guest can register.
373 */
374struct kvmppc_vpa {
375 unsigned long gpa; /* Current guest phys addr */
376 void *pinned_addr; /* Address in kernel linear mapping */
377 void *pinned_end; /* End of region */
378 unsigned long next_gpa; /* Guest phys addr for update */
379 unsigned long len; /* Number of bytes required */
380 u8 update_pending; /* 1 => update pinned_addr from next_gpa */
381 bool dirty; /* true => area has been modified by kernel */
382};
383
384struct kvmppc_pte {
385 ulong eaddr;
386 u64 vpage;
387 ulong raddr;
388 bool may_read : 1;
389 bool may_write : 1;
390 bool may_execute : 1;
391 unsigned long wimg;
392 unsigned long rc;
393 u8 page_size; /* MMU_PAGE_xxx */
394 u8 page_shift;
395};
396
397struct kvmppc_mmu {
398 /* book3s_64 only */
399 void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
400 u64 (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
401 u64 (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
402 int (*slbfee)(struct kvm_vcpu *vcpu, gva_t eaddr, ulong *ret_slb);
403 void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
404 void (*slbia)(struct kvm_vcpu *vcpu);
405 /* book3s */
406 void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
407 u32 (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
408 int (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,
409 struct kvmppc_pte *pte, bool data, bool iswrite);
410 void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
411 int (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
412 u64 (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
413 bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
414};
415
416struct kvmppc_slb {
417 u64 esid;
418 u64 vsid;
419 u64 orige;
420 u64 origv;
421 bool valid : 1;
422 bool Ks : 1;
423 bool Kp : 1;
424 bool nx : 1;
425 bool large : 1; /* PTEs are 16MB */
426 bool tb : 1; /* 1TB segment */
427 bool class : 1;
428 u8 base_page_size; /* MMU_PAGE_xxx */
429};
430
431/* Struct used to accumulate timing information in HV real mode code */
432struct kvmhv_tb_accumulator {
433 u64 seqcount; /* used to synchronize access, also count * 2 */
434 u64 tb_total; /* total time in timebase ticks */
435 u64 tb_min; /* min time */
436 u64 tb_max; /* max time */
437};
438
439#ifdef CONFIG_PPC_BOOK3S_64
440struct kvmppc_irq_map {
441 u32 r_hwirq;
442 u32 v_hwirq;
443 struct irq_desc *desc;
444};
445
446#define KVMPPC_PIRQ_MAPPED 1024
447struct kvmppc_passthru_irqmap {
448 int n_mapped;
449 struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED];
450};
451#endif
452
453# ifdef CONFIG_PPC_FSL_BOOK3E
454#define KVMPPC_BOOKE_IAC_NUM 2
455#define KVMPPC_BOOKE_DAC_NUM 2
456# else
457#define KVMPPC_BOOKE_IAC_NUM 4
458#define KVMPPC_BOOKE_DAC_NUM 2
459# endif
460#define KVMPPC_BOOKE_MAX_IAC 4
461#define KVMPPC_BOOKE_MAX_DAC 2
462
463/* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
464#define KVMPPC_EPR_NONE 0 /* EPR not supported */
465#define KVMPPC_EPR_USER 1 /* exit to userspace to fill EPR */
466#define KVMPPC_EPR_KERNEL 2 /* in-kernel irqchip */
467
468#define KVMPPC_IRQ_DEFAULT 0
469#define KVMPPC_IRQ_MPIC 1
470#define KVMPPC_IRQ_XICS 2 /* Includes a XIVE option */
471#define KVMPPC_IRQ_XIVE 3 /* XIVE native exploitation mode */
472
473#define MMIO_HPTE_CACHE_SIZE 4
474
475struct mmio_hpte_cache_entry {
476 unsigned long hpte_v;
477 unsigned long hpte_r;
478 unsigned long rpte;
479 unsigned long pte_index;
480 unsigned long eaddr;
481 unsigned long slb_v;
482 long mmio_update;
483 unsigned int slb_base_pshift;
484};
485
486struct mmio_hpte_cache {
487 struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE];
488 unsigned int index;
489};
490
491#define KVMPPC_VSX_COPY_NONE 0
492#define KVMPPC_VSX_COPY_WORD 1
493#define KVMPPC_VSX_COPY_DWORD 2
494#define KVMPPC_VSX_COPY_DWORD_LOAD_DUMP 3
495#define KVMPPC_VSX_COPY_WORD_LOAD_DUMP 4
496
497#define KVMPPC_VMX_COPY_BYTE 8
498#define KVMPPC_VMX_COPY_HWORD 9
499#define KVMPPC_VMX_COPY_WORD 10
500#define KVMPPC_VMX_COPY_DWORD 11
501
502struct openpic;
503
504/* W0 and W1 of a XIVE thread management context */
505union xive_tma_w01 {
506 struct {
507 u8 nsr;
508 u8 cppr;
509 u8 ipb;
510 u8 lsmfb;
511 u8 ack;
512 u8 inc;
513 u8 age;
514 u8 pipr;
515 };
516 __be64 w01;
517};
518
519struct kvm_vcpu_arch {
520 ulong host_stack;
521 u32 host_pid;
522#ifdef CONFIG_PPC_BOOK3S
523 struct kvmppc_slb slb[64];
524 int slb_max; /* 1 + index of last valid entry in slb[] */
525 int slb_nr; /* total number of entries in SLB */
526 struct kvmppc_mmu mmu;
527 struct kvmppc_vcpu_book3s *book3s;
528#endif
529#ifdef CONFIG_PPC_BOOK3S_32
530 struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
531#endif
532
533 struct pt_regs regs;
534
535 struct thread_fp_state fp;
536
537#ifdef CONFIG_SPE
538 ulong evr[32];
539 ulong spefscr;
540 ulong host_spefscr;
541 u64 acc;
542#endif
543#ifdef CONFIG_ALTIVEC
544 struct thread_vr_state vr;
545#endif
546
547#ifdef CONFIG_KVM_BOOKE_HV
548 u32 host_mas4;
549 u32 host_mas6;
550 u32 shadow_epcr;
551 u32 shadow_msrp;
552 u32 eplc;
553 u32 epsc;
554 u32 oldpir;
555#endif
556
557#if defined(CONFIG_BOOKE)
558#if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)
559 u32 epcr;
560#endif
561#endif
562
563#ifdef CONFIG_PPC_BOOK3S
564 /* For Gekko paired singles */
565 u32 qpr[32];
566#endif
567
568#ifdef CONFIG_PPC_BOOK3S
569 ulong tar;
570#endif
571
572#ifdef CONFIG_PPC_BOOK3S
573 ulong hflags;
574 ulong guest_owned_ext;
575 ulong purr;
576 ulong spurr;
577 ulong ic;
578 ulong dscr;
579 ulong amr;
580 ulong uamor;
581 ulong iamr;
582 u32 ctrl;
583 u32 dabrx;
584 ulong dabr;
585 ulong dawr;
586 ulong dawrx;
587 ulong ciabr;
588 ulong cfar;
589 ulong ppr;
590 u32 pspb;
591 ulong fscr;
592 ulong shadow_fscr;
593 ulong ebbhr;
594 ulong ebbrr;
595 ulong bescr;
596 ulong csigr;
597 ulong tacr;
598 ulong tcscr;
599 ulong acop;
600 ulong wort;
601 ulong tid;
602 ulong psscr;
603 ulong hfscr;
604 ulong shadow_srr1;
605#endif
606 u32 vrsave; /* also USPRG0 */
607 u32 mmucr;
608 /* shadow_msr is unused for BookE HV */
609 ulong shadow_msr;
610 ulong csrr0;
611 ulong csrr1;
612 ulong dsrr0;
613 ulong dsrr1;
614 ulong mcsrr0;
615 ulong mcsrr1;
616 ulong mcsr;
617 ulong dec;
618#ifdef CONFIG_BOOKE
619 u32 decar;
620#endif
621 /* Time base value when we entered the guest */
622 u64 entry_tb;
623 u64 entry_vtb;
624 u64 entry_ic;
625 u32 tcr;
626 ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
627 u32 ivor[64];
628 ulong ivpr;
629 u32 pvr;
630
631 u32 shadow_pid;
632 u32 shadow_pid1;
633 u32 pid;
634 u32 swap_pid;
635
636 u32 ccr0;
637 u32 ccr1;
638 u32 dbsr;
639
640 u64 mmcr[5];
641 u32 pmc[8];
642 u32 spmc[2];
643 u64 siar;
644 u64 sdar;
645 u64 sier;
646#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
647 u64 tfhar;
648 u64 texasr;
649 u64 tfiar;
650 u64 orig_texasr;
651
652 u32 cr_tm;
653 u64 xer_tm;
654 u64 lr_tm;
655 u64 ctr_tm;
656 u64 amr_tm;
657 u64 ppr_tm;
658 u64 dscr_tm;
659 u64 tar_tm;
660
661 ulong gpr_tm[32];
662
663 struct thread_fp_state fp_tm;
664
665 struct thread_vr_state vr_tm;
666 u32 vrsave_tm; /* also USPRG0 */
667#endif
668
669#ifdef CONFIG_KVM_EXIT_TIMING
670 struct mutex exit_timing_lock;
671 struct kvmppc_exit_timing timing_exit;
672 struct kvmppc_exit_timing timing_last_enter;
673 u32 last_exit_type;
674 u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
675 u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
676 u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
677 u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
678 u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
679 u64 timing_last_exit;
680 struct dentry *debugfs_exit_timing;
681#endif
682
683#ifdef CONFIG_PPC_BOOK3S
684 ulong fault_dar;
685 u32 fault_dsisr;
686 unsigned long intr_msr;
687 ulong fault_gpa; /* guest real address of page fault (POWER9) */
688#endif
689
690#ifdef CONFIG_BOOKE
691 ulong fault_dear;
692 ulong fault_esr;
693 ulong queued_dear;
694 ulong queued_esr;
695 spinlock_t wdt_lock;
696 struct timer_list wdt_timer;
697 u32 tlbcfg[4];
698 u32 tlbps[4];
699 u32 mmucfg;
700 u32 eptcfg;
701 u32 epr;
702 u64 sprg9;
703 u32 pwrmgtcr0;
704 u32 crit_save;
705 /* guest debug registers*/
706 struct debug_reg dbg_reg;
707#endif
708 gpa_t paddr_accessed;
709 gva_t vaddr_accessed;
710 pgd_t *pgdir;
711
712 u16 io_gpr; /* GPR used as IO source/target */
713 u8 mmio_host_swabbed;
714 u8 mmio_sign_extend;
715 /* conversion between single and double precision */
716 u8 mmio_sp64_extend;
717 /*
718 * Number of simulations for vsx.
719 * If we use 2*8bytes to simulate 1*16bytes,
720 * then the number should be 2 and
721 * mmio_copy_type=KVMPPC_VSX_COPY_DWORD.
722 * If we use 4*4bytes to simulate 1*16bytes,
723 * the number should be 4 and
724 * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD.
725 */
726 u8 mmio_vsx_copy_nums;
727 u8 mmio_vsx_offset;
728 u8 mmio_vmx_copy_nums;
729 u8 mmio_vmx_offset;
730 u8 mmio_copy_type;
731 u8 osi_needed;
732 u8 osi_enabled;
733 u8 papr_enabled;
734 u8 watchdog_enabled;
735 u8 sane;
736 u8 cpu_type;
737 u8 hcall_needed;
738 u8 epr_flags; /* KVMPPC_EPR_xxx */
739 u8 epr_needed;
740 u8 external_oneshot; /* clear external irq after delivery */
741
742 u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
743
744 struct hrtimer dec_timer;
745 u64 dec_jiffies;
746 u64 dec_expires;
747 unsigned long pending_exceptions;
748 u8 ceded;
749 u8 prodded;
750 u8 doorbell_request;
751 u8 irq_pending; /* Used by XIVE to signal pending guest irqs */
752 u32 last_inst;
753
754 struct swait_queue_head *wqp;
755 struct kvmppc_vcore *vcore;
756 int ret;
757 int trap;
758 int state;
759 int ptid;
760 int thread_cpu;
761 int prev_cpu;
762 bool timer_running;
763 wait_queue_head_t cpu_run;
764 struct machine_check_event mce_evt; /* Valid if trap == 0x200 */
765
766 struct kvm_vcpu_arch_shared *shared;
767#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
768 bool shared_big_endian;
769#endif
770 unsigned long magic_page_pa; /* phys addr to map the magic page to */
771 unsigned long magic_page_ea; /* effect. addr to map the magic page to */
772 bool disable_kernel_nx;
773
774 int irq_type; /* one of KVM_IRQ_* */
775 int irq_cpu_id;
776 struct openpic *mpic; /* KVM_IRQ_MPIC */
777#ifdef CONFIG_KVM_XICS
778 struct kvmppc_icp *icp; /* XICS presentation controller */
779 struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */
780 __be32 xive_cam_word; /* Cooked W2 in proper endian with valid bit */
781 u8 xive_pushed; /* Is the VP pushed on the physical CPU ? */
782 u8 xive_esc_on; /* Is the escalation irq enabled ? */
783 union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */
784 u64 xive_esc_raddr; /* Escalation interrupt ESB real addr */
785 u64 xive_esc_vaddr; /* Escalation interrupt ESB virt addr */
786#endif
787
788#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
789 struct kvm_vcpu_arch_shared shregs;
790
791 struct mmio_hpte_cache mmio_cache;
792 unsigned long pgfault_addr;
793 long pgfault_index;
794 unsigned long pgfault_hpte[2];
795 struct mmio_hpte_cache_entry *pgfault_cache;
796
797 struct task_struct *run_task;
798 struct kvm_run *kvm_run;
799
800 spinlock_t vpa_update_lock;
801 struct kvmppc_vpa vpa;
802 struct kvmppc_vpa dtl;
803 struct dtl_entry *dtl_ptr;
804 unsigned long dtl_index;
805 u64 stolen_logged;
806 struct kvmppc_vpa slb_shadow;
807
808 spinlock_t tbacct_lock;
809 u64 busy_stolen;
810 u64 busy_preempt;
811
812 u32 emul_inst;
813
814 u32 online;
815
816 /* For support of nested guests */
817 struct kvm_nested_guest *nested;
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 struct dentry *debugfs_timings;
833#endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
834};
835
836#define VCPU_FPR(vcpu, i) (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
837#define VCPU_VSX_FPR(vcpu, i, j) ((vcpu)->arch.fp.fpr[i][j])
838#define VCPU_VSX_VR(vcpu, i) ((vcpu)->arch.vr.vr[i])
839
840/* Values for vcpu->arch.state */
841#define KVMPPC_VCPU_NOTREADY 0
842#define KVMPPC_VCPU_RUNNABLE 1
843#define KVMPPC_VCPU_BUSY_IN_HOST 2
844
845/* Values for vcpu->arch.io_gpr */
846#define KVM_MMIO_REG_MASK 0x003f
847#define KVM_MMIO_REG_EXT_MASK 0xffc0
848#define KVM_MMIO_REG_GPR 0x0000
849#define KVM_MMIO_REG_FPR 0x0040
850#define KVM_MMIO_REG_QPR 0x0080
851#define KVM_MMIO_REG_FQPR 0x00c0
852#define KVM_MMIO_REG_VSX 0x0100
853#define KVM_MMIO_REG_VMX 0x0180
854#define KVM_MMIO_REG_NESTED_GPR 0xffc0
855
856
857#define __KVM_HAVE_ARCH_WQP
858#define __KVM_HAVE_CREATE_DEVICE
859
860static inline void kvm_arch_hardware_disable(void) {}
861static inline void kvm_arch_hardware_unsetup(void) {}
862static inline void kvm_arch_sync_events(struct kvm *kvm) {}
863static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {}
864static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
865static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
866static inline void kvm_arch_exit(void) {}
867static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
868static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
869static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
870
871#endif /* __POWERPC_KVM_HOST_H__ */