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1/*
2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License, version 2, as
4 * published by the Free Software Foundation.
5 *
6 * This program is distributed in the hope that it will be useful,
7 * but WITHOUT ANY WARRANTY; without even the implied warranty of
8 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
9 * GNU General Public License for more details.
10 *
11 * You should have received a copy of the GNU General Public License
12 * along with this program; if not, write to the Free Software
13 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
14 *
15 * Copyright IBM Corp. 2008
16 *
17 * Authors: Hollis Blanchard <hollisb@us.ibm.com>
18 */
19
20#ifndef __POWERPC_KVM_PPC_H__
21#define __POWERPC_KVM_PPC_H__
22
23/* This file exists just so we can dereference kvm_vcpu, avoiding nested header
24 * dependencies. */
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, /* no further processing */
43 EMULATE_DO_MMIO, /* kvm_run filled with MMIO request */
44 EMULATE_DO_DCR, /* kvm_run filled with DCR request */
45 EMULATE_FAIL, /* can't emulate this instruction */
46 EMULATE_AGAIN, /* something went wrong. go again */
47 EMULATE_EXIT_USER, /* emulation requires exit to user-space */
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/* Core-specific hooks */
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 long kvmppc_h_get_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
133 unsigned long ioba);
134extern struct kvm_rma_info *kvm_alloc_rma(void);
135extern void kvm_release_rma(struct kvm_rma_info *ri);
136extern struct page *kvm_alloc_hpt(unsigned long nr_pages);
137extern void kvm_release_hpt(struct page *page, unsigned long nr_pages);
138extern int kvmppc_core_init_vm(struct kvm *kvm);
139extern void kvmppc_core_destroy_vm(struct kvm *kvm);
140extern void kvmppc_core_free_memslot(struct kvm *kvm,
141 struct kvm_memory_slot *free,
142 struct kvm_memory_slot *dont);
143extern int kvmppc_core_create_memslot(struct kvm *kvm,
144 struct kvm_memory_slot *slot,
145 unsigned long npages);
146extern int kvmppc_core_prepare_memory_region(struct kvm *kvm,
147 struct kvm_memory_slot *memslot,
148 struct kvm_userspace_memory_region *mem);
149extern void kvmppc_core_commit_memory_region(struct kvm *kvm,
150 struct kvm_userspace_memory_region *mem,
151 const struct kvm_memory_slot *old);
152extern int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm,
153 struct kvm_ppc_smmu_info *info);
154extern void kvmppc_core_flush_memslot(struct kvm *kvm,
155 struct kvm_memory_slot *memslot);
156
157extern int kvmppc_bookehv_init(void);
158extern void kvmppc_bookehv_exit(void);
159
160extern int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu);
161
162extern int kvm_vm_ioctl_get_htab_fd(struct kvm *kvm, struct kvm_get_htab_fd *);
163
164int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq);
165
166extern int kvm_vm_ioctl_rtas_define_token(struct kvm *kvm, void __user *argp);
167extern int kvmppc_rtas_hcall(struct kvm_vcpu *vcpu);
168extern void kvmppc_rtas_tokens_free(struct kvm *kvm);
169extern int kvmppc_xics_set_xive(struct kvm *kvm, u32 irq, u32 server,
170 u32 priority);
171extern int kvmppc_xics_get_xive(struct kvm *kvm, u32 irq, u32 *server,
172 u32 *priority);
173extern int kvmppc_xics_int_on(struct kvm *kvm, u32 irq);
174extern int kvmppc_xics_int_off(struct kvm *kvm, u32 irq);
175
176union kvmppc_one_reg {
177 u32 wval;
178 u64 dval;
179 vector128 vval;
180 u64 vsxval[2];
181 struct {
182 u64 addr;
183 u64 length;
184 } vpaval;
185};
186
187struct kvmppc_ops {
188 struct module *owner;
189 int (*get_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
190 int (*set_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
191 int (*get_one_reg)(struct kvm_vcpu *vcpu, u64 id,
192 union kvmppc_one_reg *val);
193 int (*set_one_reg)(struct kvm_vcpu *vcpu, u64 id,
194 union kvmppc_one_reg *val);
195 void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
196 void (*vcpu_put)(struct kvm_vcpu *vcpu);
197 void (*set_msr)(struct kvm_vcpu *vcpu, u64 msr);
198 int (*vcpu_run)(struct kvm_run *run, struct kvm_vcpu *vcpu);
199 struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned int id);
200 void (*vcpu_free)(struct kvm_vcpu *vcpu);
201 int (*check_requests)(struct kvm_vcpu *vcpu);
202 int (*get_dirty_log)(struct kvm *kvm, struct kvm_dirty_log *log);
203 void (*flush_memslot)(struct kvm *kvm, struct kvm_memory_slot *memslot);
204 int (*prepare_memory_region)(struct kvm *kvm,
205 struct kvm_memory_slot *memslot,
206 struct kvm_userspace_memory_region *mem);
207 void (*commit_memory_region)(struct kvm *kvm,
208 struct kvm_userspace_memory_region *mem,
209 const struct kvm_memory_slot *old);
210 int (*unmap_hva)(struct kvm *kvm, unsigned long hva);
211 int (*unmap_hva_range)(struct kvm *kvm, unsigned long start,
212 unsigned long end);
213 int (*age_hva)(struct kvm *kvm, unsigned long hva);
214 int (*test_age_hva)(struct kvm *kvm, unsigned long hva);
215 void (*set_spte_hva)(struct kvm *kvm, unsigned long hva, pte_t pte);
216 void (*mmu_destroy)(struct kvm_vcpu *vcpu);
217 void (*free_memslot)(struct kvm_memory_slot *free,
218 struct kvm_memory_slot *dont);
219 int (*create_memslot)(struct kvm_memory_slot *slot,
220 unsigned long npages);
221 int (*init_vm)(struct kvm *kvm);
222 void (*destroy_vm)(struct kvm *kvm);
223 int (*get_smmu_info)(struct kvm *kvm, struct kvm_ppc_smmu_info *info);
224 int (*emulate_op)(struct kvm_run *run, struct kvm_vcpu *vcpu,
225 unsigned int inst, int *advance);
226 int (*emulate_mtspr)(struct kvm_vcpu *vcpu, int sprn, ulong spr_val);
227 int (*emulate_mfspr)(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val);
228 void (*fast_vcpu_kick)(struct kvm_vcpu *vcpu);
229 long (*arch_vm_ioctl)(struct file *filp, unsigned int ioctl,
230 unsigned long arg);
231
232};
233
234extern struct kvmppc_ops *kvmppc_hv_ops;
235extern struct kvmppc_ops *kvmppc_pr_ops;
236
237static inline bool is_kvmppc_hv_enabled(struct kvm *kvm)
238{
239 return kvm->arch.kvm_ops == kvmppc_hv_ops;
240}
241
242/*
243 * Cuts out inst bits with ordering according to spec.
244 * That means the leftmost bit is zero. All given bits are included.
245 */
246static inline u32 kvmppc_get_field(u64 inst, int msb, int lsb)
247{
248 u32 r;
249 u32 mask;
250
251 BUG_ON(msb > lsb);
252
253 mask = (1 << (lsb - msb + 1)) - 1;
254 r = (inst >> (63 - lsb)) & mask;
255
256 return r;
257}
258
259/*
260 * Replaces inst bits with ordering according to spec.
261 */
262static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value)
263{
264 u32 r;
265 u32 mask;
266
267 BUG_ON(msb > lsb);
268
269 mask = ((1 << (lsb - msb + 1)) - 1) << (63 - lsb);
270 r = (inst & ~mask) | ((value << (63 - lsb)) & mask);
271
272 return r;
273}
274
275#define one_reg_size(id) \
276 (1ul << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
277
278#define get_reg_val(id, reg) ({ \
279 union kvmppc_one_reg __u; \
280 switch (one_reg_size(id)) { \
281 case 4: __u.wval = (reg); break; \
282 case 8: __u.dval = (reg); break; \
283 default: BUG(); \
284 } \
285 __u; \
286})
287
288
289#define set_reg_val(id, val) ({ \
290 u64 __v; \
291 switch (one_reg_size(id)) { \
292 case 4: __v = (val).wval; break; \
293 case 8: __v = (val).dval; break; \
294 default: BUG(); \
295 } \
296 __v; \
297})
298
299int kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
300int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
301
302int kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
303int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
304
305int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
306int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
307int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
308int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
309
310void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid);
311
312struct openpic;
313
314#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
315extern void kvm_cma_reserve(void) __init;
316static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
317{
318 paca[cpu].kvm_hstate.xics_phys = addr;
319}
320
321static inline u32 kvmppc_get_xics_latch(void)
322{
323 u32 xirr;
324
325 xirr = get_paca()->kvm_hstate.saved_xirr;
326 get_paca()->kvm_hstate.saved_xirr = 0;
327 return xirr;
328}
329
330static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi)
331{
332 paca[cpu].kvm_hstate.host_ipi = host_ipi;
333}
334
335static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
336{
337 vcpu->kvm->arch.kvm_ops->fast_vcpu_kick(vcpu);
338}
339
340extern void kvm_hv_vm_activated(void);
341extern void kvm_hv_vm_deactivated(void);
342extern bool kvm_hv_mode_active(void);
343
344#else
345static inline void __init kvm_cma_reserve(void)
346{}
347
348static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
349{}
350
351static inline u32 kvmppc_get_xics_latch(void)
352{
353 return 0;
354}
355
356static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi)
357{}
358
359static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
360{
361 kvm_vcpu_kick(vcpu);
362}
363
364static inline bool kvm_hv_mode_active(void) { return false; }
365
366#endif
367
368#ifdef CONFIG_KVM_XICS
369static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu)
370{
371 return vcpu->arch.irq_type == KVMPPC_IRQ_XICS;
372}
373extern void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu);
374extern int kvmppc_xics_create_icp(struct kvm_vcpu *vcpu, unsigned long server);
375extern int kvm_vm_ioctl_xics_irq(struct kvm *kvm, struct kvm_irq_level *args);
376extern int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd);
377extern u64 kvmppc_xics_get_icp(struct kvm_vcpu *vcpu);
378extern int kvmppc_xics_set_icp(struct kvm_vcpu *vcpu, u64 icpval);
379extern int kvmppc_xics_connect_vcpu(struct kvm_device *dev,
380 struct kvm_vcpu *vcpu, u32 cpu);
381#else
382static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu)
383 { return 0; }
384static inline void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu) { }
385static inline int kvmppc_xics_create_icp(struct kvm_vcpu *vcpu,
386 unsigned long server)
387 { return -EINVAL; }
388static inline int kvm_vm_ioctl_xics_irq(struct kvm *kvm,
389 struct kvm_irq_level *args)
390 { return -ENOTTY; }
391static inline int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd)
392 { return 0; }
393#endif
394
395static inline void kvmppc_set_epr(struct kvm_vcpu *vcpu, u32 epr)
396{
397#ifdef CONFIG_KVM_BOOKE_HV
398 mtspr(SPRN_GEPR, epr);
399#elif defined(CONFIG_BOOKE)
400 vcpu->arch.epr = epr;
401#endif
402}
403
404#ifdef CONFIG_KVM_MPIC
405
406void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu);
407int kvmppc_mpic_connect_vcpu(struct kvm_device *dev, struct kvm_vcpu *vcpu,
408 u32 cpu);
409void kvmppc_mpic_disconnect_vcpu(struct openpic *opp, struct kvm_vcpu *vcpu);
410
411#else
412
413static inline void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu)
414{
415}
416
417static inline int kvmppc_mpic_connect_vcpu(struct kvm_device *dev,
418 struct kvm_vcpu *vcpu, u32 cpu)
419{
420 return -EINVAL;
421}
422
423static inline void kvmppc_mpic_disconnect_vcpu(struct openpic *opp,
424 struct kvm_vcpu *vcpu)
425{
426}
427
428#endif /* CONFIG_KVM_MPIC */
429
430int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu,
431 struct kvm_config_tlb *cfg);
432int kvm_vcpu_ioctl_dirty_tlb(struct kvm_vcpu *vcpu,
433 struct kvm_dirty_tlb *cfg);
434
435long kvmppc_alloc_lpid(void);
436void kvmppc_claim_lpid(long lpid);
437void kvmppc_free_lpid(long lpid);
438void kvmppc_init_lpid(unsigned long nr_lpids);
439
440static inline void kvmppc_mmu_flush_icache(pfn_t pfn)
441{
442 struct page *page;
443 /*
444 * We can only access pages that the kernel maps
445 * as memory. Bail out for unmapped ones.
446 */
447 if (!pfn_valid(pfn))
448 return;
449
450 /* Clear i-cache for new pages */
451 page = pfn_to_page(pfn);
452 if (!test_bit(PG_arch_1, &page->flags)) {
453 flush_dcache_icache_page(page);
454 set_bit(PG_arch_1, &page->flags);
455 }
456}
457
458/*
459 * Shared struct helpers. The shared struct can be little or big endian,
460 * depending on the guest endianness. So expose helpers to all of them.
461 */
462static inline bool kvmppc_shared_big_endian(struct kvm_vcpu *vcpu)
463{
464#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
465 /* Only Book3S_64 PR supports bi-endian for now */
466 return vcpu->arch.shared_big_endian;
467#elif defined(CONFIG_PPC_BOOK3S_64) && defined(__LITTLE_ENDIAN__)
468 /* Book3s_64 HV on little endian is always little endian */
469 return false;
470#else
471 return true;
472#endif
473}
474
475#define SHARED_WRAPPER_GET(reg, size) \
476static inline u##size kvmppc_get_##reg(struct kvm_vcpu *vcpu) \
477{ \
478 if (kvmppc_shared_big_endian(vcpu)) \
479 return be##size##_to_cpu(vcpu->arch.shared->reg); \
480 else \
481 return le##size##_to_cpu(vcpu->arch.shared->reg); \
482} \
483
484#define SHARED_WRAPPER_SET(reg, size) \
485static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, u##size val) \
486{ \
487 if (kvmppc_shared_big_endian(vcpu)) \
488 vcpu->arch.shared->reg = cpu_to_be##size(val); \
489 else \
490 vcpu->arch.shared->reg = cpu_to_le##size(val); \
491} \
492
493#define SHARED_WRAPPER(reg, size) \
494 SHARED_WRAPPER_GET(reg, size) \
495 SHARED_WRAPPER_SET(reg, size) \
496
497SHARED_WRAPPER(critical, 64)
498SHARED_WRAPPER(sprg0, 64)
499SHARED_WRAPPER(sprg1, 64)
500SHARED_WRAPPER(sprg2, 64)
501SHARED_WRAPPER(sprg3, 64)
502SHARED_WRAPPER(srr0, 64)
503SHARED_WRAPPER(srr1, 64)
504SHARED_WRAPPER(dar, 64)
505SHARED_WRAPPER_GET(msr, 64)
506static inline void kvmppc_set_msr_fast(struct kvm_vcpu *vcpu, u64 val)
507{
508 if (kvmppc_shared_big_endian(vcpu))
509 vcpu->arch.shared->msr = cpu_to_be64(val);
510 else
511 vcpu->arch.shared->msr = cpu_to_le64(val);
512}
513SHARED_WRAPPER(dsisr, 32)
514SHARED_WRAPPER(int_pending, 32)
515SHARED_WRAPPER(sprg4, 64)
516SHARED_WRAPPER(sprg5, 64)
517SHARED_WRAPPER(sprg6, 64)
518SHARED_WRAPPER(sprg7, 64)
519
520static inline u32 kvmppc_get_sr(struct kvm_vcpu *vcpu, int nr)
521{
522 if (kvmppc_shared_big_endian(vcpu))
523 return be32_to_cpu(vcpu->arch.shared->sr[nr]);
524 else
525 return le32_to_cpu(vcpu->arch.shared->sr[nr]);
526}
527
528static inline void kvmppc_set_sr(struct kvm_vcpu *vcpu, int nr, u32 val)
529{
530 if (kvmppc_shared_big_endian(vcpu))
531 vcpu->arch.shared->sr[nr] = cpu_to_be32(val);
532 else
533 vcpu->arch.shared->sr[nr] = cpu_to_le32(val);
534}
535
536/*
537 * Please call after prepare_to_enter. This function puts the lazy ee and irq
538 * disabled tracking state back to normal mode, without actually enabling
539 * interrupts.
540 */
541static inline void kvmppc_fix_ee_before_entry(void)
542{
543 trace_hardirqs_on();
544
545#ifdef CONFIG_PPC64
546 /*
547 * To avoid races, the caller must have gone directly from having
548 * interrupts fully-enabled to hard-disabled.
549 */
550 WARN_ON(local_paca->irq_happened != PACA_IRQ_HARD_DIS);
551
552 /* Only need to enable IRQs by hard enabling them after this */
553 local_paca->irq_happened = 0;
554 local_paca->soft_enabled = 1;
555#endif
556}
557
558static inline ulong kvmppc_get_ea_indexed(struct kvm_vcpu *vcpu, int ra, int rb)
559{
560 ulong ea;
561 ulong msr_64bit = 0;
562
563 ea = kvmppc_get_gpr(vcpu, rb);
564 if (ra)
565 ea += kvmppc_get_gpr(vcpu, ra);
566
567#if defined(CONFIG_PPC_BOOK3E_64)
568 msr_64bit = MSR_CM;
569#elif defined(CONFIG_PPC_BOOK3S_64)
570 msr_64bit = MSR_SF;
571#endif
572
573 if (!(kvmppc_get_msr(vcpu) & msr_64bit))
574 ea = (uint32_t)ea;
575
576 return ea;
577}
578
579extern void xics_wake_cpu(int cpu);
580
581#endif /* __POWERPC_KVM_PPC_H__ */