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.
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.
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.
15 * Copyright IBM Corp. 2008
17 * Authors: Hollis Blanchard <hollisb@us.ibm.com>
20 #ifndef __POWERPC_KVM_PPC_H__
21 #define __POWERPC_KVM_PPC_H__
23 /* This file exists just so we can dereference kvm_vcpu, avoiding nested header
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>
35 #include <asm/kvm_booke.h>
37 #ifdef CONFIG_KVM_BOOK3S_64_HANDLER
42 * KVMPPC_INST_SW_BREAKPOINT is debug Instruction
43 * for supporting software breakpoint.
45 #define KVMPPC_INST_SW_BREAKPOINT 0x00dddd00
47 enum emulation_result {
48 EMULATE_DONE, /* no further processing */
49 EMULATE_DO_MMIO, /* kvm_run filled with MMIO request */
50 EMULATE_FAIL, /* can't emulate this instruction */
51 EMULATE_AGAIN, /* something went wrong. go again */
52 EMULATE_EXIT_USER, /* emulation requires exit to user-space */
55 enum instruction_type {
57 INST_SC, /* system call */
61 XLATE_INST, /* translate instruction address */
62 XLATE_DATA /* translate data address */
65 enum xlate_readwrite {
66 XLATE_READ, /* check for read permissions */
67 XLATE_WRITE /* check for write permissions */
70 extern int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
71 extern int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
72 extern void kvmppc_handler_highmem(void);
74 extern void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu);
75 extern int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
76 unsigned int rt, unsigned int bytes,
77 int is_default_endian);
78 extern int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu,
79 unsigned int rt, unsigned int bytes,
80 int is_default_endian);
81 extern int kvmppc_handle_vsx_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
82 unsigned int rt, unsigned int bytes,
83 int is_default_endian, int mmio_sign_extend);
84 extern int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
85 u64 val, unsigned int bytes,
86 int is_default_endian);
87 extern int kvmppc_handle_vsx_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
88 int rs, unsigned int bytes,
89 int is_default_endian);
91 extern int kvmppc_load_last_inst(struct kvm_vcpu *vcpu,
92 enum instruction_type type, u32 *inst);
94 extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
96 extern int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
98 extern int kvmppc_emulate_instruction(struct kvm_run *run,
99 struct kvm_vcpu *vcpu);
100 extern int kvmppc_emulate_loadstore(struct kvm_vcpu *vcpu);
101 extern int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu);
102 extern void kvmppc_emulate_dec(struct kvm_vcpu *vcpu);
103 extern u32 kvmppc_get_dec(struct kvm_vcpu *vcpu, u64 tb);
104 extern void kvmppc_decrementer_func(struct kvm_vcpu *vcpu);
105 extern int kvmppc_sanity_check(struct kvm_vcpu *vcpu);
106 extern int kvmppc_subarch_vcpu_init(struct kvm_vcpu *vcpu);
107 extern void kvmppc_subarch_vcpu_uninit(struct kvm_vcpu *vcpu);
109 /* Core-specific hooks */
111 extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr,
112 unsigned int gtlb_idx);
113 extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode);
114 extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid);
115 extern void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu);
116 extern int kvmppc_mmu_init(struct kvm_vcpu *vcpu);
117 extern int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
118 extern int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
119 extern gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index,
121 extern void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu);
122 extern void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu);
123 extern int kvmppc_xlate(struct kvm_vcpu *vcpu, ulong eaddr,
124 enum xlate_instdata xlid, enum xlate_readwrite xlrw,
125 struct kvmppc_pte *pte);
127 extern struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm,
129 extern void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu);
130 extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu);
131 extern int kvmppc_core_check_processor_compat(void);
132 extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
133 struct kvm_translation *tr);
135 extern void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
136 extern void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu);
138 extern int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu);
139 extern int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu);
140 extern void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags);
141 extern void kvmppc_core_queue_fpunavail(struct kvm_vcpu *vcpu);
142 extern void kvmppc_core_queue_vec_unavail(struct kvm_vcpu *vcpu);
143 extern void kvmppc_core_queue_vsx_unavail(struct kvm_vcpu *vcpu);
144 extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu);
145 extern void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu);
146 extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,
147 struct kvm_interrupt *irq);
148 extern void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu);
149 extern void kvmppc_core_queue_dtlb_miss(struct kvm_vcpu *vcpu, ulong dear_flags,
151 extern void kvmppc_core_queue_data_storage(struct kvm_vcpu *vcpu,
154 extern void kvmppc_core_queue_itlb_miss(struct kvm_vcpu *vcpu);
155 extern void kvmppc_core_queue_inst_storage(struct kvm_vcpu *vcpu,
157 extern void kvmppc_core_flush_tlb(struct kvm_vcpu *vcpu);
158 extern int kvmppc_core_check_requests(struct kvm_vcpu *vcpu);
160 extern int kvmppc_booke_init(void);
161 extern void kvmppc_booke_exit(void);
163 extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu);
164 extern int kvmppc_kvm_pv(struct kvm_vcpu *vcpu);
165 extern void kvmppc_map_magic(struct kvm_vcpu *vcpu);
167 extern int kvmppc_allocate_hpt(struct kvm_hpt_info *info, u32 order);
168 extern void kvmppc_set_hpt(struct kvm *kvm, struct kvm_hpt_info *info);
169 extern long kvmppc_alloc_reset_hpt(struct kvm *kvm, int order);
170 extern void kvmppc_free_hpt(struct kvm_hpt_info *info);
171 extern long kvmppc_prepare_vrma(struct kvm *kvm,
172 struct kvm_userspace_memory_region *mem);
173 extern void kvmppc_map_vrma(struct kvm_vcpu *vcpu,
174 struct kvm_memory_slot *memslot, unsigned long porder);
175 extern int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu);
177 extern long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm,
178 struct kvm_create_spapr_tce_64 *args);
179 extern struct kvmppc_spapr_tce_table *kvmppc_find_table(
180 struct kvm *kvm, unsigned long liobn);
181 extern long kvmppc_ioba_validate(struct kvmppc_spapr_tce_table *stt,
182 unsigned long ioba, unsigned long npages);
183 extern long kvmppc_tce_validate(struct kvmppc_spapr_tce_table *tt,
185 extern long kvmppc_gpa_to_ua(struct kvm *kvm, unsigned long gpa,
186 unsigned long *ua, unsigned long **prmap);
187 extern void kvmppc_tce_put(struct kvmppc_spapr_tce_table *tt,
188 unsigned long idx, unsigned long tce);
189 extern long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
190 unsigned long ioba, unsigned long tce);
191 extern long kvmppc_h_put_tce_indirect(struct kvm_vcpu *vcpu,
192 unsigned long liobn, unsigned long ioba,
193 unsigned long tce_list, unsigned long npages);
194 extern long kvmppc_h_stuff_tce(struct kvm_vcpu *vcpu,
195 unsigned long liobn, unsigned long ioba,
196 unsigned long tce_value, unsigned long npages);
197 extern long kvmppc_h_get_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
199 extern struct page *kvm_alloc_hpt_cma(unsigned long nr_pages);
200 extern void kvm_free_hpt_cma(struct page *page, unsigned long nr_pages);
201 extern int kvmppc_core_init_vm(struct kvm *kvm);
202 extern void kvmppc_core_destroy_vm(struct kvm *kvm);
203 extern void kvmppc_core_free_memslot(struct kvm *kvm,
204 struct kvm_memory_slot *free,
205 struct kvm_memory_slot *dont);
206 extern int kvmppc_core_create_memslot(struct kvm *kvm,
207 struct kvm_memory_slot *slot,
208 unsigned long npages);
209 extern int kvmppc_core_prepare_memory_region(struct kvm *kvm,
210 struct kvm_memory_slot *memslot,
211 const struct kvm_userspace_memory_region *mem);
212 extern void kvmppc_core_commit_memory_region(struct kvm *kvm,
213 const struct kvm_userspace_memory_region *mem,
214 const struct kvm_memory_slot *old,
215 const struct kvm_memory_slot *new);
216 extern int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm,
217 struct kvm_ppc_smmu_info *info);
218 extern void kvmppc_core_flush_memslot(struct kvm *kvm,
219 struct kvm_memory_slot *memslot);
221 extern int kvmppc_bookehv_init(void);
222 extern void kvmppc_bookehv_exit(void);
224 extern int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu);
226 extern int kvm_vm_ioctl_get_htab_fd(struct kvm *kvm, struct kvm_get_htab_fd *);
227 extern long kvm_vm_ioctl_resize_hpt_prepare(struct kvm *kvm,
228 struct kvm_ppc_resize_hpt *rhpt);
229 extern long kvm_vm_ioctl_resize_hpt_commit(struct kvm *kvm,
230 struct kvm_ppc_resize_hpt *rhpt);
232 int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq);
234 extern int kvm_vm_ioctl_rtas_define_token(struct kvm *kvm, void __user *argp);
235 extern int kvmppc_rtas_hcall(struct kvm_vcpu *vcpu);
236 extern void kvmppc_rtas_tokens_free(struct kvm *kvm);
237 extern int kvmppc_xics_set_xive(struct kvm *kvm, u32 irq, u32 server,
239 extern int kvmppc_xics_get_xive(struct kvm *kvm, u32 irq, u32 *server,
241 extern int kvmppc_xics_int_on(struct kvm *kvm, u32 irq);
242 extern int kvmppc_xics_int_off(struct kvm *kvm, u32 irq);
244 void kvmppc_core_dequeue_debug(struct kvm_vcpu *vcpu);
245 void kvmppc_core_queue_debug(struct kvm_vcpu *vcpu);
247 union kvmppc_one_reg {
260 struct module *owner;
261 int (*get_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
262 int (*set_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
263 int (*get_one_reg)(struct kvm_vcpu *vcpu, u64 id,
264 union kvmppc_one_reg *val);
265 int (*set_one_reg)(struct kvm_vcpu *vcpu, u64 id,
266 union kvmppc_one_reg *val);
267 void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
268 void (*vcpu_put)(struct kvm_vcpu *vcpu);
269 void (*set_msr)(struct kvm_vcpu *vcpu, u64 msr);
270 int (*vcpu_run)(struct kvm_run *run, struct kvm_vcpu *vcpu);
271 struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned int id);
272 void (*vcpu_free)(struct kvm_vcpu *vcpu);
273 int (*check_requests)(struct kvm_vcpu *vcpu);
274 int (*get_dirty_log)(struct kvm *kvm, struct kvm_dirty_log *log);
275 void (*flush_memslot)(struct kvm *kvm, struct kvm_memory_slot *memslot);
276 int (*prepare_memory_region)(struct kvm *kvm,
277 struct kvm_memory_slot *memslot,
278 const struct kvm_userspace_memory_region *mem);
279 void (*commit_memory_region)(struct kvm *kvm,
280 const struct kvm_userspace_memory_region *mem,
281 const struct kvm_memory_slot *old,
282 const struct kvm_memory_slot *new);
283 int (*unmap_hva)(struct kvm *kvm, unsigned long hva);
284 int (*unmap_hva_range)(struct kvm *kvm, unsigned long start,
286 int (*age_hva)(struct kvm *kvm, unsigned long start, unsigned long end);
287 int (*test_age_hva)(struct kvm *kvm, unsigned long hva);
288 void (*set_spte_hva)(struct kvm *kvm, unsigned long hva, pte_t pte);
289 void (*mmu_destroy)(struct kvm_vcpu *vcpu);
290 void (*free_memslot)(struct kvm_memory_slot *free,
291 struct kvm_memory_slot *dont);
292 int (*create_memslot)(struct kvm_memory_slot *slot,
293 unsigned long npages);
294 int (*init_vm)(struct kvm *kvm);
295 void (*destroy_vm)(struct kvm *kvm);
296 int (*get_smmu_info)(struct kvm *kvm, struct kvm_ppc_smmu_info *info);
297 int (*emulate_op)(struct kvm_run *run, struct kvm_vcpu *vcpu,
298 unsigned int inst, int *advance);
299 int (*emulate_mtspr)(struct kvm_vcpu *vcpu, int sprn, ulong spr_val);
300 int (*emulate_mfspr)(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val);
301 void (*fast_vcpu_kick)(struct kvm_vcpu *vcpu);
302 long (*arch_vm_ioctl)(struct file *filp, unsigned int ioctl,
304 int (*hcall_implemented)(unsigned long hcall);
305 int (*irq_bypass_add_producer)(struct irq_bypass_consumer *,
306 struct irq_bypass_producer *);
307 void (*irq_bypass_del_producer)(struct irq_bypass_consumer *,
308 struct irq_bypass_producer *);
309 int (*configure_mmu)(struct kvm *kvm, struct kvm_ppc_mmuv3_cfg *cfg);
310 int (*get_rmmu_info)(struct kvm *kvm, struct kvm_ppc_rmmu_info *info);
313 extern struct kvmppc_ops *kvmppc_hv_ops;
314 extern struct kvmppc_ops *kvmppc_pr_ops;
316 static inline int kvmppc_get_last_inst(struct kvm_vcpu *vcpu,
317 enum instruction_type type, u32 *inst)
319 int ret = EMULATE_DONE;
322 /* Load the instruction manually if it failed to do so in the
324 if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
325 ret = kvmppc_load_last_inst(vcpu, type, &vcpu->arch.last_inst);
327 /* Write fetch_failed unswapped if the fetch failed */
328 if (ret == EMULATE_DONE)
329 fetched_inst = kvmppc_need_byteswap(vcpu) ?
330 swab32(vcpu->arch.last_inst) :
331 vcpu->arch.last_inst;
333 fetched_inst = vcpu->arch.last_inst;
335 *inst = fetched_inst;
339 static inline bool is_kvmppc_hv_enabled(struct kvm *kvm)
341 return kvm->arch.kvm_ops == kvmppc_hv_ops;
344 extern int kvmppc_hwrng_present(void);
347 * Cuts out inst bits with ordering according to spec.
348 * That means the leftmost bit is zero. All given bits are included.
350 static inline u32 kvmppc_get_field(u64 inst, int msb, int lsb)
357 mask = (1 << (lsb - msb + 1)) - 1;
358 r = (inst >> (63 - lsb)) & mask;
364 * Replaces inst bits with ordering according to spec.
366 static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value)
373 mask = ((1 << (lsb - msb + 1)) - 1) << (63 - lsb);
374 r = (inst & ~mask) | ((value << (63 - lsb)) & mask);
379 #define one_reg_size(id) \
380 (1ul << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
382 #define get_reg_val(id, reg) ({ \
383 union kvmppc_one_reg __u; \
384 switch (one_reg_size(id)) { \
385 case 4: __u.wval = (reg); break; \
386 case 8: __u.dval = (reg); break; \
393 #define set_reg_val(id, val) ({ \
395 switch (one_reg_size(id)) { \
396 case 4: __v = (val).wval; break; \
397 case 8: __v = (val).dval; break; \
403 int kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
404 int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
406 int kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
407 int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
409 int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
410 int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
411 int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
412 int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
414 void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid);
418 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
419 extern void kvm_cma_reserve(void) __init;
420 static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
422 paca[cpu].kvm_hstate.xics_phys = addr;
425 static inline u32 kvmppc_get_xics_latch(void)
429 xirr = get_paca()->kvm_hstate.saved_xirr;
430 get_paca()->kvm_hstate.saved_xirr = 0;
434 static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi)
436 paca[cpu].kvm_hstate.host_ipi = host_ipi;
439 static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
441 vcpu->kvm->arch.kvm_ops->fast_vcpu_kick(vcpu);
444 extern void kvm_hv_vm_activated(void);
445 extern void kvm_hv_vm_deactivated(void);
446 extern bool kvm_hv_mode_active(void);
449 static inline void __init kvm_cma_reserve(void)
452 static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
455 static inline u32 kvmppc_get_xics_latch(void)
460 static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi)
463 static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
468 static inline bool kvm_hv_mode_active(void) { return false; }
472 #ifdef CONFIG_KVM_XICS
473 static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu)
475 return vcpu->arch.irq_type == KVMPPC_IRQ_XICS;
478 static inline struct kvmppc_passthru_irqmap *kvmppc_get_passthru_irqmap(
481 if (kvm && kvm_irq_bypass)
482 return kvm->arch.pimap;
486 extern void kvmppc_alloc_host_rm_ops(void);
487 extern void kvmppc_free_host_rm_ops(void);
488 extern void kvmppc_free_pimap(struct kvm *kvm);
489 extern int kvmppc_xics_rm_complete(struct kvm_vcpu *vcpu, u32 hcall);
490 extern void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu);
491 extern int kvmppc_xics_create_icp(struct kvm_vcpu *vcpu, unsigned long server);
492 extern int kvm_vm_ioctl_xics_irq(struct kvm *kvm, struct kvm_irq_level *args);
493 extern int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd);
494 extern u64 kvmppc_xics_get_icp(struct kvm_vcpu *vcpu);
495 extern int kvmppc_xics_set_icp(struct kvm_vcpu *vcpu, u64 icpval);
496 extern int kvmppc_xics_connect_vcpu(struct kvm_device *dev,
497 struct kvm_vcpu *vcpu, u32 cpu);
498 extern void kvmppc_xics_ipi_action(void);
499 extern void kvmppc_xics_set_mapped(struct kvm *kvm, unsigned long guest_irq,
500 unsigned long host_irq);
501 extern void kvmppc_xics_clr_mapped(struct kvm *kvm, unsigned long guest_irq,
502 unsigned long host_irq);
503 extern long kvmppc_deliver_irq_passthru(struct kvm_vcpu *vcpu, __be32 xirr,
504 struct kvmppc_irq_map *irq_map,
505 struct kvmppc_passthru_irqmap *pimap,
507 extern int h_ipi_redirect;
509 static inline struct kvmppc_passthru_irqmap *kvmppc_get_passthru_irqmap(
512 static inline void kvmppc_alloc_host_rm_ops(void) {};
513 static inline void kvmppc_free_host_rm_ops(void) {};
514 static inline void kvmppc_free_pimap(struct kvm *kvm) {};
515 static inline int kvmppc_xics_rm_complete(struct kvm_vcpu *vcpu, u32 hcall)
517 static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu)
519 static inline void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu) { }
520 static inline int kvmppc_xics_create_icp(struct kvm_vcpu *vcpu,
521 unsigned long server)
523 static inline int kvm_vm_ioctl_xics_irq(struct kvm *kvm,
524 struct kvm_irq_level *args)
526 static inline int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd)
531 * Prototypes for functions called only from assembler code.
532 * Having prototypes reduces sparse errors.
534 long kvmppc_rm_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
535 unsigned long ioba, unsigned long tce);
536 long kvmppc_rm_h_put_tce_indirect(struct kvm_vcpu *vcpu,
537 unsigned long liobn, unsigned long ioba,
538 unsigned long tce_list, unsigned long npages);
539 long kvmppc_rm_h_stuff_tce(struct kvm_vcpu *vcpu,
540 unsigned long liobn, unsigned long ioba,
541 unsigned long tce_value, unsigned long npages);
542 long int kvmppc_rm_h_confer(struct kvm_vcpu *vcpu, int target,
543 unsigned int yield_count);
544 long kvmppc_h_random(struct kvm_vcpu *vcpu);
545 void kvmhv_commence_exit(int trap);
546 long kvmppc_realmode_machine_check(struct kvm_vcpu *vcpu);
547 void kvmppc_subcore_enter_guest(void);
548 void kvmppc_subcore_exit_guest(void);
549 long kvmppc_realmode_hmi_handler(void);
550 long kvmppc_h_enter(struct kvm_vcpu *vcpu, unsigned long flags,
551 long pte_index, unsigned long pteh, unsigned long ptel);
552 long kvmppc_h_remove(struct kvm_vcpu *vcpu, unsigned long flags,
553 unsigned long pte_index, unsigned long avpn);
554 long kvmppc_h_bulk_remove(struct kvm_vcpu *vcpu);
555 long kvmppc_h_protect(struct kvm_vcpu *vcpu, unsigned long flags,
556 unsigned long pte_index, unsigned long avpn,
558 long kvmppc_h_read(struct kvm_vcpu *vcpu, unsigned long flags,
559 unsigned long pte_index);
560 long kvmppc_h_clear_ref(struct kvm_vcpu *vcpu, unsigned long flags,
561 unsigned long pte_index);
562 long kvmppc_h_clear_mod(struct kvm_vcpu *vcpu, unsigned long flags,
563 unsigned long pte_index);
564 long kvmppc_hpte_hv_fault(struct kvm_vcpu *vcpu, unsigned long addr,
565 unsigned long slb_v, unsigned int status, bool data);
566 unsigned long kvmppc_rm_h_xirr(struct kvm_vcpu *vcpu);
567 int kvmppc_rm_h_ipi(struct kvm_vcpu *vcpu, unsigned long server,
569 int kvmppc_rm_h_cppr(struct kvm_vcpu *vcpu, unsigned long cppr);
570 int kvmppc_rm_h_eoi(struct kvm_vcpu *vcpu, unsigned long xirr);
573 * Host-side operations we want to set up while running in real
574 * mode in the guest operating on the xics.
575 * Currently only VCPU wakeup is supported.
578 union kvmppc_rm_state {
586 struct kvmppc_host_rm_core {
587 union kvmppc_rm_state rm_state;
592 struct kvmppc_host_rm_ops {
593 struct kvmppc_host_rm_core *rm_core;
594 void (*vcpu_kick)(struct kvm_vcpu *vcpu);
597 extern struct kvmppc_host_rm_ops *kvmppc_host_rm_ops_hv;
599 static inline unsigned long kvmppc_get_epr(struct kvm_vcpu *vcpu)
601 #ifdef CONFIG_KVM_BOOKE_HV
602 return mfspr(SPRN_GEPR);
603 #elif defined(CONFIG_BOOKE)
604 return vcpu->arch.epr;
610 static inline void kvmppc_set_epr(struct kvm_vcpu *vcpu, u32 epr)
612 #ifdef CONFIG_KVM_BOOKE_HV
613 mtspr(SPRN_GEPR, epr);
614 #elif defined(CONFIG_BOOKE)
615 vcpu->arch.epr = epr;
619 #ifdef CONFIG_KVM_MPIC
621 void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu);
622 int kvmppc_mpic_connect_vcpu(struct kvm_device *dev, struct kvm_vcpu *vcpu,
624 void kvmppc_mpic_disconnect_vcpu(struct openpic *opp, struct kvm_vcpu *vcpu);
628 static inline void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu)
632 static inline int kvmppc_mpic_connect_vcpu(struct kvm_device *dev,
633 struct kvm_vcpu *vcpu, u32 cpu)
638 static inline void kvmppc_mpic_disconnect_vcpu(struct openpic *opp,
639 struct kvm_vcpu *vcpu)
643 #endif /* CONFIG_KVM_MPIC */
645 int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu,
646 struct kvm_config_tlb *cfg);
647 int kvm_vcpu_ioctl_dirty_tlb(struct kvm_vcpu *vcpu,
648 struct kvm_dirty_tlb *cfg);
650 long kvmppc_alloc_lpid(void);
651 void kvmppc_claim_lpid(long lpid);
652 void kvmppc_free_lpid(long lpid);
653 void kvmppc_init_lpid(unsigned long nr_lpids);
655 static inline void kvmppc_mmu_flush_icache(kvm_pfn_t pfn)
659 * We can only access pages that the kernel maps
660 * as memory. Bail out for unmapped ones.
665 /* Clear i-cache for new pages */
666 page = pfn_to_page(pfn);
667 if (!test_bit(PG_arch_1, &page->flags)) {
668 flush_dcache_icache_page(page);
669 set_bit(PG_arch_1, &page->flags);
674 * Shared struct helpers. The shared struct can be little or big endian,
675 * depending on the guest endianness. So expose helpers to all of them.
677 static inline bool kvmppc_shared_big_endian(struct kvm_vcpu *vcpu)
679 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
680 /* Only Book3S_64 PR supports bi-endian for now */
681 return vcpu->arch.shared_big_endian;
682 #elif defined(CONFIG_PPC_BOOK3S_64) && defined(__LITTLE_ENDIAN__)
683 /* Book3s_64 HV on little endian is always little endian */
690 #define SPRNG_WRAPPER_GET(reg, bookehv_spr) \
691 static inline ulong kvmppc_get_##reg(struct kvm_vcpu *vcpu) \
693 return mfspr(bookehv_spr); \
696 #define SPRNG_WRAPPER_SET(reg, bookehv_spr) \
697 static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, ulong val) \
699 mtspr(bookehv_spr, val); \
702 #define SHARED_WRAPPER_GET(reg, size) \
703 static inline u##size kvmppc_get_##reg(struct kvm_vcpu *vcpu) \
705 if (kvmppc_shared_big_endian(vcpu)) \
706 return be##size##_to_cpu(vcpu->arch.shared->reg); \
708 return le##size##_to_cpu(vcpu->arch.shared->reg); \
711 #define SHARED_WRAPPER_SET(reg, size) \
712 static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, u##size val) \
714 if (kvmppc_shared_big_endian(vcpu)) \
715 vcpu->arch.shared->reg = cpu_to_be##size(val); \
717 vcpu->arch.shared->reg = cpu_to_le##size(val); \
720 #define SHARED_WRAPPER(reg, size) \
721 SHARED_WRAPPER_GET(reg, size) \
722 SHARED_WRAPPER_SET(reg, size) \
724 #define SPRNG_WRAPPER(reg, bookehv_spr) \
725 SPRNG_WRAPPER_GET(reg, bookehv_spr) \
726 SPRNG_WRAPPER_SET(reg, bookehv_spr) \
728 #ifdef CONFIG_KVM_BOOKE_HV
730 #define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \
731 SPRNG_WRAPPER(reg, bookehv_spr) \
735 #define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \
736 SHARED_WRAPPER(reg, size) \
740 SHARED_WRAPPER(critical, 64)
741 SHARED_SPRNG_WRAPPER(sprg0, 64, SPRN_GSPRG0)
742 SHARED_SPRNG_WRAPPER(sprg1, 64, SPRN_GSPRG1)
743 SHARED_SPRNG_WRAPPER(sprg2, 64, SPRN_GSPRG2)
744 SHARED_SPRNG_WRAPPER(sprg3, 64, SPRN_GSPRG3)
745 SHARED_SPRNG_WRAPPER(srr0, 64, SPRN_GSRR0)
746 SHARED_SPRNG_WRAPPER(srr1, 64, SPRN_GSRR1)
747 SHARED_SPRNG_WRAPPER(dar, 64, SPRN_GDEAR)
748 SHARED_SPRNG_WRAPPER(esr, 64, SPRN_GESR)
749 SHARED_WRAPPER_GET(msr, 64)
750 static inline void kvmppc_set_msr_fast(struct kvm_vcpu *vcpu, u64 val)
752 if (kvmppc_shared_big_endian(vcpu))
753 vcpu->arch.shared->msr = cpu_to_be64(val);
755 vcpu->arch.shared->msr = cpu_to_le64(val);
757 SHARED_WRAPPER(dsisr, 32)
758 SHARED_WRAPPER(int_pending, 32)
759 SHARED_WRAPPER(sprg4, 64)
760 SHARED_WRAPPER(sprg5, 64)
761 SHARED_WRAPPER(sprg6, 64)
762 SHARED_WRAPPER(sprg7, 64)
764 static inline u32 kvmppc_get_sr(struct kvm_vcpu *vcpu, int nr)
766 if (kvmppc_shared_big_endian(vcpu))
767 return be32_to_cpu(vcpu->arch.shared->sr[nr]);
769 return le32_to_cpu(vcpu->arch.shared->sr[nr]);
772 static inline void kvmppc_set_sr(struct kvm_vcpu *vcpu, int nr, u32 val)
774 if (kvmppc_shared_big_endian(vcpu))
775 vcpu->arch.shared->sr[nr] = cpu_to_be32(val);
777 vcpu->arch.shared->sr[nr] = cpu_to_le32(val);
781 * Please call after prepare_to_enter. This function puts the lazy ee and irq
782 * disabled tracking state back to normal mode, without actually enabling
785 static inline void kvmppc_fix_ee_before_entry(void)
791 * To avoid races, the caller must have gone directly from having
792 * interrupts fully-enabled to hard-disabled.
794 WARN_ON(local_paca->irq_happened != PACA_IRQ_HARD_DIS);
796 /* Only need to enable IRQs by hard enabling them after this */
797 local_paca->irq_happened = 0;
798 local_paca->soft_enabled = 1;
802 static inline ulong kvmppc_get_ea_indexed(struct kvm_vcpu *vcpu, int ra, int rb)
807 ea = kvmppc_get_gpr(vcpu, rb);
809 ea += kvmppc_get_gpr(vcpu, ra);
811 #if defined(CONFIG_PPC_BOOK3E_64)
813 #elif defined(CONFIG_PPC_BOOK3S_64)
817 if (!(kvmppc_get_msr(vcpu) & msr_64bit))
823 extern void xics_wake_cpu(int cpu);
825 #endif /* __POWERPC_KVM_PPC_H__ */