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20#ifndef __POWERPC_KVM_PPC_H__
21#define __POWERPC_KVM_PPC_H__
22
23
24
25
26#include <linux/mutex.h>
27#include <linux/timer.h>
28#include <linux/types.h>
29#include <linux/kvm_types.h>
30#include <linux/kvm_host.h>
31#include <linux/bug.h>
32#ifdef CONFIG_PPC_BOOK3S
33#include <asm/kvm_book3s.h>
34#else
35#include <asm/kvm_booke.h>
36#endif
37#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
38#include <asm/paca.h>
39#endif
40
41enum emulation_result {
42 EMULATE_DONE,
43 EMULATE_DO_MMIO,
44 EMULATE_DO_DCR,
45 EMULATE_FAIL,
46 EMULATE_AGAIN,
47 EMULATE_EXIT_USER,
48};
49
50extern int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
51extern int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
52extern void kvmppc_handler_highmem(void);
53
54extern void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu);
55extern int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
56 unsigned int rt, unsigned int bytes,
57 int is_default_endian);
58extern int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu,
59 unsigned int rt, unsigned int bytes,
60 int is_default_endian);
61extern int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
62 u64 val, unsigned int bytes,
63 int is_default_endian);
64
65extern int kvmppc_emulate_instruction(struct kvm_run *run,
66 struct kvm_vcpu *vcpu);
67extern int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu);
68extern void kvmppc_emulate_dec(struct kvm_vcpu *vcpu);
69extern u32 kvmppc_get_dec(struct kvm_vcpu *vcpu, u64 tb);
70extern void kvmppc_decrementer_func(unsigned long data);
71extern int kvmppc_sanity_check(struct kvm_vcpu *vcpu);
72extern int kvmppc_subarch_vcpu_init(struct kvm_vcpu *vcpu);
73extern void kvmppc_subarch_vcpu_uninit(struct kvm_vcpu *vcpu);
74
75
76
77extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr,
78 unsigned int gtlb_idx);
79extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode);
80extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid);
81extern void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu);
82extern int kvmppc_mmu_init(struct kvm_vcpu *vcpu);
83extern int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
84extern int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
85extern gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index,
86 gva_t eaddr);
87extern void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu);
88extern void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu);
89
90extern struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm,
91 unsigned int id);
92extern void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu);
93extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu);
94extern int kvmppc_core_check_processor_compat(void);
95extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
96 struct kvm_translation *tr);
97
98extern void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
99extern void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu);
100
101extern int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu);
102extern int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu);
103extern void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags);
104extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu);
105extern void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu);
106extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,
107 struct kvm_interrupt *irq);
108extern void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu);
109extern void kvmppc_core_flush_tlb(struct kvm_vcpu *vcpu);
110extern int kvmppc_core_check_requests(struct kvm_vcpu *vcpu);
111
112extern int kvmppc_booke_init(void);
113extern void kvmppc_booke_exit(void);
114
115extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu);
116extern int kvmppc_kvm_pv(struct kvm_vcpu *vcpu);
117extern void kvmppc_map_magic(struct kvm_vcpu *vcpu);
118
119extern long kvmppc_alloc_hpt(struct kvm *kvm, u32 *htab_orderp);
120extern long kvmppc_alloc_reset_hpt(struct kvm *kvm, u32 *htab_orderp);
121extern void kvmppc_free_hpt(struct kvm *kvm);
122extern long kvmppc_prepare_vrma(struct kvm *kvm,
123 struct kvm_userspace_memory_region *mem);
124extern void kvmppc_map_vrma(struct kvm_vcpu *vcpu,
125 struct kvm_memory_slot *memslot, unsigned long porder);
126extern int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu);
127
128extern long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm,
129 struct kvm_create_spapr_tce *args);
130extern long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
131 unsigned long ioba, unsigned long tce);
132extern struct kvm_rma_info *kvm_alloc_rma(void);
133extern void kvm_release_rma(struct kvm_rma_info *ri);
134extern struct page *kvm_alloc_hpt(unsigned long nr_pages);
135extern void kvm_release_hpt(struct page *page, unsigned long nr_pages);
136extern int kvmppc_core_init_vm(struct kvm *kvm);
137extern void kvmppc_core_destroy_vm(struct kvm *kvm);
138extern void kvmppc_core_free_memslot(struct kvm *kvm,
139 struct kvm_memory_slot *free,
140 struct kvm_memory_slot *dont);
141extern int kvmppc_core_create_memslot(struct kvm *kvm,
142 struct kvm_memory_slot *slot,
143 unsigned long npages);
144extern int kvmppc_core_prepare_memory_region(struct kvm *kvm,
145 struct kvm_memory_slot *memslot,
146 struct kvm_userspace_memory_region *mem);
147extern void kvmppc_core_commit_memory_region(struct kvm *kvm,
148 struct kvm_userspace_memory_region *mem,
149 const struct kvm_memory_slot *old);
150extern int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm,
151 struct kvm_ppc_smmu_info *info);
152extern void kvmppc_core_flush_memslot(struct kvm *kvm,
153 struct kvm_memory_slot *memslot);
154
155extern int kvmppc_bookehv_init(void);
156extern void kvmppc_bookehv_exit(void);
157
158extern int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu);
159
160extern int kvm_vm_ioctl_get_htab_fd(struct kvm *kvm, struct kvm_get_htab_fd *);
161
162int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq);
163
164extern int kvm_vm_ioctl_rtas_define_token(struct kvm *kvm, void __user *argp);
165extern int kvmppc_rtas_hcall(struct kvm_vcpu *vcpu);
166extern void kvmppc_rtas_tokens_free(struct kvm *kvm);
167extern int kvmppc_xics_set_xive(struct kvm *kvm, u32 irq, u32 server,
168 u32 priority);
169extern int kvmppc_xics_get_xive(struct kvm *kvm, u32 irq, u32 *server,
170 u32 *priority);
171extern int kvmppc_xics_int_on(struct kvm *kvm, u32 irq);
172extern int kvmppc_xics_int_off(struct kvm *kvm, u32 irq);
173
174union kvmppc_one_reg {
175 u32 wval;
176 u64 dval;
177 vector128 vval;
178 u64 vsxval[2];
179 struct {
180 u64 addr;
181 u64 length;
182 } vpaval;
183};
184
185struct kvmppc_ops {
186 struct module *owner;
187 int (*get_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
188 int (*set_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
189 int (*get_one_reg)(struct kvm_vcpu *vcpu, u64 id,
190 union kvmppc_one_reg *val);
191 int (*set_one_reg)(struct kvm_vcpu *vcpu, u64 id,
192 union kvmppc_one_reg *val);
193 void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
194 void (*vcpu_put)(struct kvm_vcpu *vcpu);
195 void (*set_msr)(struct kvm_vcpu *vcpu, u64 msr);
196 int (*vcpu_run)(struct kvm_run *run, struct kvm_vcpu *vcpu);
197 struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned int id);
198 void (*vcpu_free)(struct kvm_vcpu *vcpu);
199 int (*check_requests)(struct kvm_vcpu *vcpu);
200 int (*get_dirty_log)(struct kvm *kvm, struct kvm_dirty_log *log);
201 void (*flush_memslot)(struct kvm *kvm, struct kvm_memory_slot *memslot);
202 int (*prepare_memory_region)(struct kvm *kvm,
203 struct kvm_memory_slot *memslot,
204 struct kvm_userspace_memory_region *mem);
205 void (*commit_memory_region)(struct kvm *kvm,
206 struct kvm_userspace_memory_region *mem,
207 const struct kvm_memory_slot *old);
208 int (*unmap_hva)(struct kvm *kvm, unsigned long hva);
209 int (*unmap_hva_range)(struct kvm *kvm, unsigned long start,
210 unsigned long end);
211 int (*age_hva)(struct kvm *kvm, unsigned long hva);
212 int (*test_age_hva)(struct kvm *kvm, unsigned long hva);
213 void (*set_spte_hva)(struct kvm *kvm, unsigned long hva, pte_t pte);
214 void (*mmu_destroy)(struct kvm_vcpu *vcpu);
215 void (*free_memslot)(struct kvm_memory_slot *free,
216 struct kvm_memory_slot *dont);
217 int (*create_memslot)(struct kvm_memory_slot *slot,
218 unsigned long npages);
219 int (*init_vm)(struct kvm *kvm);
220 void (*destroy_vm)(struct kvm *kvm);
221 int (*get_smmu_info)(struct kvm *kvm, struct kvm_ppc_smmu_info *info);
222 int (*emulate_op)(struct kvm_run *run, struct kvm_vcpu *vcpu,
223 unsigned int inst, int *advance);
224 int (*emulate_mtspr)(struct kvm_vcpu *vcpu, int sprn, ulong spr_val);
225 int (*emulate_mfspr)(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val);
226 void (*fast_vcpu_kick)(struct kvm_vcpu *vcpu);
227 long (*arch_vm_ioctl)(struct file *filp, unsigned int ioctl,
228 unsigned long arg);
229
230};
231
232extern struct kvmppc_ops *kvmppc_hv_ops;
233extern struct kvmppc_ops *kvmppc_pr_ops;
234
235static inline bool is_kvmppc_hv_enabled(struct kvm *kvm)
236{
237 return kvm->arch.kvm_ops == kvmppc_hv_ops;
238}
239
240
241
242
243
244static inline u32 kvmppc_get_field(u64 inst, int msb, int lsb)
245{
246 u32 r;
247 u32 mask;
248
249 BUG_ON(msb > lsb);
250
251 mask = (1 << (lsb - msb + 1)) - 1;
252 r = (inst >> (63 - lsb)) & mask;
253
254 return r;
255}
256
257
258
259
260static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value)
261{
262 u32 r;
263 u32 mask;
264
265 BUG_ON(msb > lsb);
266
267 mask = ((1 << (lsb - msb + 1)) - 1) << (63 - lsb);
268 r = (inst & ~mask) | ((value << (63 - lsb)) & mask);
269
270 return r;
271}
272
273#define one_reg_size(id) \
274 (1ul << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
275
276#define get_reg_val(id, reg) ({ \
277 union kvmppc_one_reg __u; \
278 switch (one_reg_size(id)) { \
279 case 4: __u.wval = (reg); break; \
280 case 8: __u.dval = (reg); break; \
281 default: BUG(); \
282 } \
283 __u; \
284})
285
286
287#define set_reg_val(id, val) ({ \
288 u64 __v; \
289 switch (one_reg_size(id)) { \
290 case 4: __v = (val).wval; break; \
291 case 8: __v = (val).dval; break; \
292 default: BUG(); \
293 } \
294 __v; \
295})
296
297int kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
298int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
299
300int kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
301int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
302
303int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
304int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
305int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
306int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
307
308void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid);
309
310struct openpic;
311
312#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
313extern void kvm_cma_reserve(void) __init;
314static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
315{
316 paca[cpu].kvm_hstate.xics_phys = addr;
317}
318
319static inline u32 kvmppc_get_xics_latch(void)
320{
321 u32 xirr;
322
323 xirr = get_paca()->kvm_hstate.saved_xirr;
324 get_paca()->kvm_hstate.saved_xirr = 0;
325 return xirr;
326}
327
328static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi)
329{
330 paca[cpu].kvm_hstate.host_ipi = host_ipi;
331}
332
333static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
334{
335 vcpu->kvm->arch.kvm_ops->fast_vcpu_kick(vcpu);
336}
337
338#else
339static inline void __init kvm_cma_reserve(void)
340{}
341
342static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
343{}
344
345static inline u32 kvmppc_get_xics_latch(void)
346{
347 return 0;
348}
349
350static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi)
351{}
352
353static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
354{
355 kvm_vcpu_kick(vcpu);
356}
357#endif
358
359#ifdef CONFIG_KVM_XICS
360static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu)
361{
362 return vcpu->arch.irq_type == KVMPPC_IRQ_XICS;
363}
364extern void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu);
365extern int kvmppc_xics_create_icp(struct kvm_vcpu *vcpu, unsigned long server);
366extern int kvm_vm_ioctl_xics_irq(struct kvm *kvm, struct kvm_irq_level *args);
367extern int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd);
368extern u64 kvmppc_xics_get_icp(struct kvm_vcpu *vcpu);
369extern int kvmppc_xics_set_icp(struct kvm_vcpu *vcpu, u64 icpval);
370extern int kvmppc_xics_connect_vcpu(struct kvm_device *dev,
371 struct kvm_vcpu *vcpu, u32 cpu);
372#else
373static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu)
374 { return 0; }
375static inline void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu) { }
376static inline int kvmppc_xics_create_icp(struct kvm_vcpu *vcpu,
377 unsigned long server)
378 { return -EINVAL; }
379static inline int kvm_vm_ioctl_xics_irq(struct kvm *kvm,
380 struct kvm_irq_level *args)
381 { return -ENOTTY; }
382static inline int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd)
383 { return 0; }
384#endif
385
386static inline void kvmppc_set_epr(struct kvm_vcpu *vcpu, u32 epr)
387{
388#ifdef CONFIG_KVM_BOOKE_HV
389 mtspr(SPRN_GEPR, epr);
390#elif defined(CONFIG_BOOKE)
391 vcpu->arch.epr = epr;
392#endif
393}
394
395#ifdef CONFIG_KVM_MPIC
396
397void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu);
398int kvmppc_mpic_connect_vcpu(struct kvm_device *dev, struct kvm_vcpu *vcpu,
399 u32 cpu);
400void kvmppc_mpic_disconnect_vcpu(struct openpic *opp, struct kvm_vcpu *vcpu);
401
402#else
403
404static inline void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu)
405{
406}
407
408static inline int kvmppc_mpic_connect_vcpu(struct kvm_device *dev,
409 struct kvm_vcpu *vcpu, u32 cpu)
410{
411 return -EINVAL;
412}
413
414static inline void kvmppc_mpic_disconnect_vcpu(struct openpic *opp,
415 struct kvm_vcpu *vcpu)
416{
417}
418
419#endif
420
421int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu,
422 struct kvm_config_tlb *cfg);
423int kvm_vcpu_ioctl_dirty_tlb(struct kvm_vcpu *vcpu,
424 struct kvm_dirty_tlb *cfg);
425
426long kvmppc_alloc_lpid(void);
427void kvmppc_claim_lpid(long lpid);
428void kvmppc_free_lpid(long lpid);
429void kvmppc_init_lpid(unsigned long nr_lpids);
430
431static inline void kvmppc_mmu_flush_icache(pfn_t pfn)
432{
433 struct page *page;
434
435
436
437
438 if (!pfn_valid(pfn))
439 return;
440
441
442 page = pfn_to_page(pfn);
443 if (!test_bit(PG_arch_1, &page->flags)) {
444 flush_dcache_icache_page(page);
445 set_bit(PG_arch_1, &page->flags);
446 }
447}
448
449
450
451
452
453
454static inline void kvmppc_fix_ee_before_entry(void)
455{
456 trace_hardirqs_on();
457
458#ifdef CONFIG_PPC64
459
460
461
462
463 WARN_ON(local_paca->irq_happened != PACA_IRQ_HARD_DIS);
464
465
466 local_paca->irq_happened = 0;
467 local_paca->soft_enabled = 1;
468#endif
469}
470
471static inline ulong kvmppc_get_ea_indexed(struct kvm_vcpu *vcpu, int ra, int rb)
472{
473 ulong ea;
474 ulong msr_64bit = 0;
475
476 ea = kvmppc_get_gpr(vcpu, rb);
477 if (ra)
478 ea += kvmppc_get_gpr(vcpu, ra);
479
480#if defined(CONFIG_PPC_BOOK3E_64)
481 msr_64bit = MSR_CM;
482#elif defined(CONFIG_PPC_BOOK3S_64)
483 msr_64bit = MSR_SF;
484#endif
485
486 if (!(vcpu->arch.shared->msr & msr_64bit))
487 ea = (uint32_t)ea;
488
489 return ea;
490}
491
492extern void xics_wake_cpu(int cpu);
493
494#endif
495