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);
176 extern long kvm_spapr_tce_attach_iommu_group(struct kvm *kvm, int tablefd,
177 struct iommu_group *grp);
178 extern void kvm_spapr_tce_release_iommu_group(struct kvm *kvm,
179 struct iommu_group *grp);
181 extern long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm,
182 struct kvm_create_spapr_tce_64 *args);
183 extern struct kvmppc_spapr_tce_table *kvmppc_find_table(
184 struct kvm *kvm, unsigned long liobn);
185 #define kvmppc_ioba_validate(stt, ioba, npages) \
186 (iommu_tce_check_ioba((stt)->page_shift, (stt)->offset, \
187 (stt)->size, (ioba), (npages)) ? \
188 H_PARAMETER : H_SUCCESS)
189 extern long kvmppc_tce_validate(struct kvmppc_spapr_tce_table *tt,
191 extern long kvmppc_gpa_to_ua(struct kvm *kvm, unsigned long gpa,
192 unsigned long *ua, unsigned long **prmap);
193 extern void kvmppc_tce_put(struct kvmppc_spapr_tce_table *tt,
194 unsigned long idx, unsigned long tce);
195 extern long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
196 unsigned long ioba, unsigned long tce);
197 extern long kvmppc_h_put_tce_indirect(struct kvm_vcpu *vcpu,
198 unsigned long liobn, unsigned long ioba,
199 unsigned long tce_list, unsigned long npages);
200 extern long kvmppc_h_stuff_tce(struct kvm_vcpu *vcpu,
201 unsigned long liobn, unsigned long ioba,
202 unsigned long tce_value, unsigned long npages);
203 extern long kvmppc_h_get_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
205 extern struct page *kvm_alloc_hpt_cma(unsigned long nr_pages);
206 extern void kvm_free_hpt_cma(struct page *page, unsigned long nr_pages);
207 extern int kvmppc_core_init_vm(struct kvm *kvm);
208 extern void kvmppc_core_destroy_vm(struct kvm *kvm);
209 extern void kvmppc_core_free_memslot(struct kvm *kvm,
210 struct kvm_memory_slot *free,
211 struct kvm_memory_slot *dont);
212 extern int kvmppc_core_create_memslot(struct kvm *kvm,
213 struct kvm_memory_slot *slot,
214 unsigned long npages);
215 extern int kvmppc_core_prepare_memory_region(struct kvm *kvm,
216 struct kvm_memory_slot *memslot,
217 const struct kvm_userspace_memory_region *mem);
218 extern void kvmppc_core_commit_memory_region(struct kvm *kvm,
219 const struct kvm_userspace_memory_region *mem,
220 const struct kvm_memory_slot *old,
221 const struct kvm_memory_slot *new);
222 extern int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm,
223 struct kvm_ppc_smmu_info *info);
224 extern void kvmppc_core_flush_memslot(struct kvm *kvm,
225 struct kvm_memory_slot *memslot);
227 extern int kvmppc_bookehv_init(void);
228 extern void kvmppc_bookehv_exit(void);
230 extern int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu);
232 extern int kvm_vm_ioctl_get_htab_fd(struct kvm *kvm, struct kvm_get_htab_fd *);
233 extern long kvm_vm_ioctl_resize_hpt_prepare(struct kvm *kvm,
234 struct kvm_ppc_resize_hpt *rhpt);
235 extern long kvm_vm_ioctl_resize_hpt_commit(struct kvm *kvm,
236 struct kvm_ppc_resize_hpt *rhpt);
238 int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq);
240 extern int kvm_vm_ioctl_rtas_define_token(struct kvm *kvm, void __user *argp);
241 extern int kvmppc_rtas_hcall(struct kvm_vcpu *vcpu);
242 extern void kvmppc_rtas_tokens_free(struct kvm *kvm);
243 extern int kvmppc_xics_set_xive(struct kvm *kvm, u32 irq, u32 server,
245 extern int kvmppc_xics_get_xive(struct kvm *kvm, u32 irq, u32 *server,
247 extern int kvmppc_xics_int_on(struct kvm *kvm, u32 irq);
248 extern int kvmppc_xics_int_off(struct kvm *kvm, u32 irq);
250 void kvmppc_core_dequeue_debug(struct kvm_vcpu *vcpu);
251 void kvmppc_core_queue_debug(struct kvm_vcpu *vcpu);
253 union kvmppc_one_reg {
266 struct module *owner;
267 int (*get_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
268 int (*set_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
269 int (*get_one_reg)(struct kvm_vcpu *vcpu, u64 id,
270 union kvmppc_one_reg *val);
271 int (*set_one_reg)(struct kvm_vcpu *vcpu, u64 id,
272 union kvmppc_one_reg *val);
273 void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
274 void (*vcpu_put)(struct kvm_vcpu *vcpu);
275 void (*set_msr)(struct kvm_vcpu *vcpu, u64 msr);
276 int (*vcpu_run)(struct kvm_run *run, struct kvm_vcpu *vcpu);
277 struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned int id);
278 void (*vcpu_free)(struct kvm_vcpu *vcpu);
279 int (*check_requests)(struct kvm_vcpu *vcpu);
280 int (*get_dirty_log)(struct kvm *kvm, struct kvm_dirty_log *log);
281 void (*flush_memslot)(struct kvm *kvm, struct kvm_memory_slot *memslot);
282 int (*prepare_memory_region)(struct kvm *kvm,
283 struct kvm_memory_slot *memslot,
284 const struct kvm_userspace_memory_region *mem);
285 void (*commit_memory_region)(struct kvm *kvm,
286 const struct kvm_userspace_memory_region *mem,
287 const struct kvm_memory_slot *old,
288 const struct kvm_memory_slot *new);
289 int (*unmap_hva)(struct kvm *kvm, unsigned long hva);
290 int (*unmap_hva_range)(struct kvm *kvm, unsigned long start,
292 int (*age_hva)(struct kvm *kvm, unsigned long start, unsigned long end);
293 int (*test_age_hva)(struct kvm *kvm, unsigned long hva);
294 void (*set_spte_hva)(struct kvm *kvm, unsigned long hva, pte_t pte);
295 void (*mmu_destroy)(struct kvm_vcpu *vcpu);
296 void (*free_memslot)(struct kvm_memory_slot *free,
297 struct kvm_memory_slot *dont);
298 int (*create_memslot)(struct kvm_memory_slot *slot,
299 unsigned long npages);
300 int (*init_vm)(struct kvm *kvm);
301 void (*destroy_vm)(struct kvm *kvm);
302 int (*get_smmu_info)(struct kvm *kvm, struct kvm_ppc_smmu_info *info);
303 int (*emulate_op)(struct kvm_run *run, struct kvm_vcpu *vcpu,
304 unsigned int inst, int *advance);
305 int (*emulate_mtspr)(struct kvm_vcpu *vcpu, int sprn, ulong spr_val);
306 int (*emulate_mfspr)(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val);
307 void (*fast_vcpu_kick)(struct kvm_vcpu *vcpu);
308 long (*arch_vm_ioctl)(struct file *filp, unsigned int ioctl,
310 int (*hcall_implemented)(unsigned long hcall);
311 int (*irq_bypass_add_producer)(struct irq_bypass_consumer *,
312 struct irq_bypass_producer *);
313 void (*irq_bypass_del_producer)(struct irq_bypass_consumer *,
314 struct irq_bypass_producer *);
315 int (*configure_mmu)(struct kvm *kvm, struct kvm_ppc_mmuv3_cfg *cfg);
316 int (*get_rmmu_info)(struct kvm *kvm, struct kvm_ppc_rmmu_info *info);
319 extern struct kvmppc_ops *kvmppc_hv_ops;
320 extern struct kvmppc_ops *kvmppc_pr_ops;
322 static inline int kvmppc_get_last_inst(struct kvm_vcpu *vcpu,
323 enum instruction_type type, u32 *inst)
325 int ret = EMULATE_DONE;
328 /* Load the instruction manually if it failed to do so in the
330 if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
331 ret = kvmppc_load_last_inst(vcpu, type, &vcpu->arch.last_inst);
333 /* Write fetch_failed unswapped if the fetch failed */
334 if (ret == EMULATE_DONE)
335 fetched_inst = kvmppc_need_byteswap(vcpu) ?
336 swab32(vcpu->arch.last_inst) :
337 vcpu->arch.last_inst;
339 fetched_inst = vcpu->arch.last_inst;
341 *inst = fetched_inst;
345 static inline bool is_kvmppc_hv_enabled(struct kvm *kvm)
347 return kvm->arch.kvm_ops == kvmppc_hv_ops;
350 extern int kvmppc_hwrng_present(void);
353 * Cuts out inst bits with ordering according to spec.
354 * That means the leftmost bit is zero. All given bits are included.
356 static inline u32 kvmppc_get_field(u64 inst, int msb, int lsb)
363 mask = (1 << (lsb - msb + 1)) - 1;
364 r = (inst >> (63 - lsb)) & mask;
370 * Replaces inst bits with ordering according to spec.
372 static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value)
379 mask = ((1 << (lsb - msb + 1)) - 1) << (63 - lsb);
380 r = (inst & ~mask) | ((value << (63 - lsb)) & mask);
385 #define one_reg_size(id) \
386 (1ul << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
388 #define get_reg_val(id, reg) ({ \
389 union kvmppc_one_reg __u; \
390 switch (one_reg_size(id)) { \
391 case 4: __u.wval = (reg); break; \
392 case 8: __u.dval = (reg); break; \
399 #define set_reg_val(id, val) ({ \
401 switch (one_reg_size(id)) { \
402 case 4: __v = (val).wval; break; \
403 case 8: __v = (val).dval; break; \
409 int kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
410 int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
412 int kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
413 int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
415 int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
416 int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
417 int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
418 int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
420 void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid);
424 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
425 extern void kvm_cma_reserve(void) __init;
426 static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
428 paca[cpu].kvm_hstate.xics_phys = (void __iomem *)addr;
431 static inline u32 kvmppc_get_xics_latch(void)
435 xirr = get_paca()->kvm_hstate.saved_xirr;
436 get_paca()->kvm_hstate.saved_xirr = 0;
440 static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi)
442 paca[cpu].kvm_hstate.host_ipi = host_ipi;
445 static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
447 vcpu->kvm->arch.kvm_ops->fast_vcpu_kick(vcpu);
450 extern void kvm_hv_vm_activated(void);
451 extern void kvm_hv_vm_deactivated(void);
452 extern bool kvm_hv_mode_active(void);
455 static inline void __init kvm_cma_reserve(void)
458 static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
461 static inline u32 kvmppc_get_xics_latch(void)
466 static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi)
469 static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
474 static inline bool kvm_hv_mode_active(void) { return false; }
478 #ifdef CONFIG_KVM_XICS
479 static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu)
481 return vcpu->arch.irq_type == KVMPPC_IRQ_XICS;
484 static inline struct kvmppc_passthru_irqmap *kvmppc_get_passthru_irqmap(
487 if (kvm && kvm_irq_bypass)
488 return kvm->arch.pimap;
492 extern void kvmppc_alloc_host_rm_ops(void);
493 extern void kvmppc_free_host_rm_ops(void);
494 extern void kvmppc_free_pimap(struct kvm *kvm);
495 extern int kvmppc_xics_rm_complete(struct kvm_vcpu *vcpu, u32 hcall);
496 extern void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu);
497 extern int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd);
498 extern u64 kvmppc_xics_get_icp(struct kvm_vcpu *vcpu);
499 extern int kvmppc_xics_set_icp(struct kvm_vcpu *vcpu, u64 icpval);
500 extern int kvmppc_xics_connect_vcpu(struct kvm_device *dev,
501 struct kvm_vcpu *vcpu, u32 cpu);
502 extern void kvmppc_xics_ipi_action(void);
503 extern void kvmppc_xics_set_mapped(struct kvm *kvm, unsigned long guest_irq,
504 unsigned long host_irq);
505 extern void kvmppc_xics_clr_mapped(struct kvm *kvm, unsigned long guest_irq,
506 unsigned long host_irq);
507 extern long kvmppc_deliver_irq_passthru(struct kvm_vcpu *vcpu, __be32 xirr,
508 struct kvmppc_irq_map *irq_map,
509 struct kvmppc_passthru_irqmap *pimap,
511 extern int h_ipi_redirect;
513 static inline struct kvmppc_passthru_irqmap *kvmppc_get_passthru_irqmap(
516 static inline void kvmppc_alloc_host_rm_ops(void) {};
517 static inline void kvmppc_free_host_rm_ops(void) {};
518 static inline void kvmppc_free_pimap(struct kvm *kvm) {};
519 static inline int kvmppc_xics_rm_complete(struct kvm_vcpu *vcpu, u32 hcall)
521 static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu)
523 static inline void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu) { }
524 static inline int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd)
529 * Prototypes for functions called only from assembler code.
530 * Having prototypes reduces sparse errors.
532 long kvmppc_rm_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
533 unsigned long ioba, unsigned long tce);
534 long kvmppc_rm_h_put_tce_indirect(struct kvm_vcpu *vcpu,
535 unsigned long liobn, unsigned long ioba,
536 unsigned long tce_list, unsigned long npages);
537 long kvmppc_rm_h_stuff_tce(struct kvm_vcpu *vcpu,
538 unsigned long liobn, unsigned long ioba,
539 unsigned long tce_value, unsigned long npages);
540 long int kvmppc_rm_h_confer(struct kvm_vcpu *vcpu, int target,
541 unsigned int yield_count);
542 long kvmppc_h_random(struct kvm_vcpu *vcpu);
543 void kvmhv_commence_exit(int trap);
544 long kvmppc_realmode_machine_check(struct kvm_vcpu *vcpu);
545 void kvmppc_subcore_enter_guest(void);
546 void kvmppc_subcore_exit_guest(void);
547 long kvmppc_realmode_hmi_handler(void);
548 long kvmppc_h_enter(struct kvm_vcpu *vcpu, unsigned long flags,
549 long pte_index, unsigned long pteh, unsigned long ptel);
550 long kvmppc_h_remove(struct kvm_vcpu *vcpu, unsigned long flags,
551 unsigned long pte_index, unsigned long avpn);
552 long kvmppc_h_bulk_remove(struct kvm_vcpu *vcpu);
553 long kvmppc_h_protect(struct kvm_vcpu *vcpu, unsigned long flags,
554 unsigned long pte_index, unsigned long avpn,
556 long kvmppc_h_read(struct kvm_vcpu *vcpu, unsigned long flags,
557 unsigned long pte_index);
558 long kvmppc_h_clear_ref(struct kvm_vcpu *vcpu, unsigned long flags,
559 unsigned long pte_index);
560 long kvmppc_h_clear_mod(struct kvm_vcpu *vcpu, unsigned long flags,
561 unsigned long pte_index);
562 long kvmppc_hpte_hv_fault(struct kvm_vcpu *vcpu, unsigned long addr,
563 unsigned long slb_v, unsigned int status, bool data);
564 unsigned long kvmppc_rm_h_xirr(struct kvm_vcpu *vcpu);
565 int kvmppc_rm_h_ipi(struct kvm_vcpu *vcpu, unsigned long server,
567 int kvmppc_rm_h_cppr(struct kvm_vcpu *vcpu, unsigned long cppr);
568 int kvmppc_rm_h_eoi(struct kvm_vcpu *vcpu, unsigned long xirr);
571 * Host-side operations we want to set up while running in real
572 * mode in the guest operating on the xics.
573 * Currently only VCPU wakeup is supported.
576 union kvmppc_rm_state {
584 struct kvmppc_host_rm_core {
585 union kvmppc_rm_state rm_state;
590 struct kvmppc_host_rm_ops {
591 struct kvmppc_host_rm_core *rm_core;
592 void (*vcpu_kick)(struct kvm_vcpu *vcpu);
595 extern struct kvmppc_host_rm_ops *kvmppc_host_rm_ops_hv;
597 static inline unsigned long kvmppc_get_epr(struct kvm_vcpu *vcpu)
599 #ifdef CONFIG_KVM_BOOKE_HV
600 return mfspr(SPRN_GEPR);
601 #elif defined(CONFIG_BOOKE)
602 return vcpu->arch.epr;
608 static inline void kvmppc_set_epr(struct kvm_vcpu *vcpu, u32 epr)
610 #ifdef CONFIG_KVM_BOOKE_HV
611 mtspr(SPRN_GEPR, epr);
612 #elif defined(CONFIG_BOOKE)
613 vcpu->arch.epr = epr;
617 #ifdef CONFIG_KVM_MPIC
619 void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu);
620 int kvmppc_mpic_connect_vcpu(struct kvm_device *dev, struct kvm_vcpu *vcpu,
622 void kvmppc_mpic_disconnect_vcpu(struct openpic *opp, struct kvm_vcpu *vcpu);
626 static inline void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu)
630 static inline int kvmppc_mpic_connect_vcpu(struct kvm_device *dev,
631 struct kvm_vcpu *vcpu, u32 cpu)
636 static inline void kvmppc_mpic_disconnect_vcpu(struct openpic *opp,
637 struct kvm_vcpu *vcpu)
641 #endif /* CONFIG_KVM_MPIC */
643 int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu,
644 struct kvm_config_tlb *cfg);
645 int kvm_vcpu_ioctl_dirty_tlb(struct kvm_vcpu *vcpu,
646 struct kvm_dirty_tlb *cfg);
648 long kvmppc_alloc_lpid(void);
649 void kvmppc_claim_lpid(long lpid);
650 void kvmppc_free_lpid(long lpid);
651 void kvmppc_init_lpid(unsigned long nr_lpids);
653 static inline void kvmppc_mmu_flush_icache(kvm_pfn_t pfn)
657 * We can only access pages that the kernel maps
658 * as memory. Bail out for unmapped ones.
663 /* Clear i-cache for new pages */
664 page = pfn_to_page(pfn);
665 if (!test_bit(PG_arch_1, &page->flags)) {
666 flush_dcache_icache_page(page);
667 set_bit(PG_arch_1, &page->flags);
672 * Shared struct helpers. The shared struct can be little or big endian,
673 * depending on the guest endianness. So expose helpers to all of them.
675 static inline bool kvmppc_shared_big_endian(struct kvm_vcpu *vcpu)
677 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
678 /* Only Book3S_64 PR supports bi-endian for now */
679 return vcpu->arch.shared_big_endian;
680 #elif defined(CONFIG_PPC_BOOK3S_64) && defined(__LITTLE_ENDIAN__)
681 /* Book3s_64 HV on little endian is always little endian */
688 #define SPRNG_WRAPPER_GET(reg, bookehv_spr) \
689 static inline ulong kvmppc_get_##reg(struct kvm_vcpu *vcpu) \
691 return mfspr(bookehv_spr); \
694 #define SPRNG_WRAPPER_SET(reg, bookehv_spr) \
695 static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, ulong val) \
697 mtspr(bookehv_spr, val); \
700 #define SHARED_WRAPPER_GET(reg, size) \
701 static inline u##size kvmppc_get_##reg(struct kvm_vcpu *vcpu) \
703 if (kvmppc_shared_big_endian(vcpu)) \
704 return be##size##_to_cpu(vcpu->arch.shared->reg); \
706 return le##size##_to_cpu(vcpu->arch.shared->reg); \
709 #define SHARED_WRAPPER_SET(reg, size) \
710 static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, u##size val) \
712 if (kvmppc_shared_big_endian(vcpu)) \
713 vcpu->arch.shared->reg = cpu_to_be##size(val); \
715 vcpu->arch.shared->reg = cpu_to_le##size(val); \
718 #define SHARED_WRAPPER(reg, size) \
719 SHARED_WRAPPER_GET(reg, size) \
720 SHARED_WRAPPER_SET(reg, size) \
722 #define SPRNG_WRAPPER(reg, bookehv_spr) \
723 SPRNG_WRAPPER_GET(reg, bookehv_spr) \
724 SPRNG_WRAPPER_SET(reg, bookehv_spr) \
726 #ifdef CONFIG_KVM_BOOKE_HV
728 #define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \
729 SPRNG_WRAPPER(reg, bookehv_spr) \
733 #define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \
734 SHARED_WRAPPER(reg, size) \
738 SHARED_WRAPPER(critical, 64)
739 SHARED_SPRNG_WRAPPER(sprg0, 64, SPRN_GSPRG0)
740 SHARED_SPRNG_WRAPPER(sprg1, 64, SPRN_GSPRG1)
741 SHARED_SPRNG_WRAPPER(sprg2, 64, SPRN_GSPRG2)
742 SHARED_SPRNG_WRAPPER(sprg3, 64, SPRN_GSPRG3)
743 SHARED_SPRNG_WRAPPER(srr0, 64, SPRN_GSRR0)
744 SHARED_SPRNG_WRAPPER(srr1, 64, SPRN_GSRR1)
745 SHARED_SPRNG_WRAPPER(dar, 64, SPRN_GDEAR)
746 SHARED_SPRNG_WRAPPER(esr, 64, SPRN_GESR)
747 SHARED_WRAPPER_GET(msr, 64)
748 static inline void kvmppc_set_msr_fast(struct kvm_vcpu *vcpu, u64 val)
750 if (kvmppc_shared_big_endian(vcpu))
751 vcpu->arch.shared->msr = cpu_to_be64(val);
753 vcpu->arch.shared->msr = cpu_to_le64(val);
755 SHARED_WRAPPER(dsisr, 32)
756 SHARED_WRAPPER(int_pending, 32)
757 SHARED_WRAPPER(sprg4, 64)
758 SHARED_WRAPPER(sprg5, 64)
759 SHARED_WRAPPER(sprg6, 64)
760 SHARED_WRAPPER(sprg7, 64)
762 static inline u32 kvmppc_get_sr(struct kvm_vcpu *vcpu, int nr)
764 if (kvmppc_shared_big_endian(vcpu))
765 return be32_to_cpu(vcpu->arch.shared->sr[nr]);
767 return le32_to_cpu(vcpu->arch.shared->sr[nr]);
770 static inline void kvmppc_set_sr(struct kvm_vcpu *vcpu, int nr, u32 val)
772 if (kvmppc_shared_big_endian(vcpu))
773 vcpu->arch.shared->sr[nr] = cpu_to_be32(val);
775 vcpu->arch.shared->sr[nr] = cpu_to_le32(val);
779 * Please call after prepare_to_enter. This function puts the lazy ee and irq
780 * disabled tracking state back to normal mode, without actually enabling
783 static inline void kvmppc_fix_ee_before_entry(void)
789 * To avoid races, the caller must have gone directly from having
790 * interrupts fully-enabled to hard-disabled.
792 WARN_ON(local_paca->irq_happened != PACA_IRQ_HARD_DIS);
794 /* Only need to enable IRQs by hard enabling them after this */
795 local_paca->irq_happened = 0;
796 local_paca->soft_enabled = 1;
800 static inline ulong kvmppc_get_ea_indexed(struct kvm_vcpu *vcpu, int ra, int rb)
805 ea = kvmppc_get_gpr(vcpu, rb);
807 ea += kvmppc_get_gpr(vcpu, ra);
809 #if defined(CONFIG_PPC_BOOK3E_64)
811 #elif defined(CONFIG_PPC_BOOK3S_64)
815 if (!(kvmppc_get_msr(vcpu) & msr_64bit))
821 extern void xics_wake_cpu(int cpu);
823 #endif /* __POWERPC_KVM_PPC_H__ */