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_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
82 u64 val, unsigned int bytes,
83 int is_default_endian);
85 extern int kvmppc_load_last_inst(struct kvm_vcpu *vcpu,
86 enum instruction_type type, u32 *inst);
88 extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
90 extern int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
92 extern int kvmppc_emulate_instruction(struct kvm_run *run,
93 struct kvm_vcpu *vcpu);
94 extern int kvmppc_emulate_loadstore(struct kvm_vcpu *vcpu);
95 extern int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu);
96 extern void kvmppc_emulate_dec(struct kvm_vcpu *vcpu);
97 extern u32 kvmppc_get_dec(struct kvm_vcpu *vcpu, u64 tb);
98 extern void kvmppc_decrementer_func(struct kvm_vcpu *vcpu);
99 extern int kvmppc_sanity_check(struct kvm_vcpu *vcpu);
100 extern int kvmppc_subarch_vcpu_init(struct kvm_vcpu *vcpu);
101 extern void kvmppc_subarch_vcpu_uninit(struct kvm_vcpu *vcpu);
103 /* Core-specific hooks */
105 extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr,
106 unsigned int gtlb_idx);
107 extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode);
108 extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid);
109 extern void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu);
110 extern int kvmppc_mmu_init(struct kvm_vcpu *vcpu);
111 extern int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
112 extern int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
113 extern gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index,
115 extern void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu);
116 extern void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu);
117 extern int kvmppc_xlate(struct kvm_vcpu *vcpu, ulong eaddr,
118 enum xlate_instdata xlid, enum xlate_readwrite xlrw,
119 struct kvmppc_pte *pte);
121 extern struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm,
123 extern void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu);
124 extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu);
125 extern int kvmppc_core_check_processor_compat(void);
126 extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
127 struct kvm_translation *tr);
129 extern void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
130 extern void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu);
132 extern int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu);
133 extern int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu);
134 extern void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags);
135 extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu);
136 extern void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu);
137 extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,
138 struct kvm_interrupt *irq);
139 extern void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu);
140 extern void kvmppc_core_queue_dtlb_miss(struct kvm_vcpu *vcpu, ulong dear_flags,
142 extern void kvmppc_core_queue_data_storage(struct kvm_vcpu *vcpu,
145 extern void kvmppc_core_queue_itlb_miss(struct kvm_vcpu *vcpu);
146 extern void kvmppc_core_queue_inst_storage(struct kvm_vcpu *vcpu,
148 extern void kvmppc_core_flush_tlb(struct kvm_vcpu *vcpu);
149 extern int kvmppc_core_check_requests(struct kvm_vcpu *vcpu);
151 extern int kvmppc_booke_init(void);
152 extern void kvmppc_booke_exit(void);
154 extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu);
155 extern int kvmppc_kvm_pv(struct kvm_vcpu *vcpu);
156 extern void kvmppc_map_magic(struct kvm_vcpu *vcpu);
158 extern int kvmppc_allocate_hpt(struct kvm_hpt_info *info, u32 order);
159 extern void kvmppc_set_hpt(struct kvm *kvm, struct kvm_hpt_info *info);
160 extern long kvmppc_alloc_reset_hpt(struct kvm *kvm, int order);
161 extern void kvmppc_free_hpt(struct kvm_hpt_info *info);
162 extern long kvmppc_prepare_vrma(struct kvm *kvm,
163 struct kvm_userspace_memory_region *mem);
164 extern void kvmppc_map_vrma(struct kvm_vcpu *vcpu,
165 struct kvm_memory_slot *memslot, unsigned long porder);
166 extern int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu);
168 extern long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm,
169 struct kvm_create_spapr_tce_64 *args);
170 extern struct kvmppc_spapr_tce_table *kvmppc_find_table(
171 struct kvm_vcpu *vcpu, unsigned long liobn);
172 extern long kvmppc_ioba_validate(struct kvmppc_spapr_tce_table *stt,
173 unsigned long ioba, unsigned long npages);
174 extern long kvmppc_tce_validate(struct kvmppc_spapr_tce_table *tt,
176 extern long kvmppc_gpa_to_ua(struct kvm *kvm, unsigned long gpa,
177 unsigned long *ua, unsigned long **prmap);
178 extern void kvmppc_tce_put(struct kvmppc_spapr_tce_table *tt,
179 unsigned long idx, unsigned long tce);
180 extern long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
181 unsigned long ioba, unsigned long tce);
182 extern long kvmppc_h_put_tce_indirect(struct kvm_vcpu *vcpu,
183 unsigned long liobn, unsigned long ioba,
184 unsigned long tce_list, unsigned long npages);
185 extern long kvmppc_h_stuff_tce(struct kvm_vcpu *vcpu,
186 unsigned long liobn, unsigned long ioba,
187 unsigned long tce_value, unsigned long npages);
188 extern long kvmppc_h_get_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
190 extern struct page *kvm_alloc_hpt_cma(unsigned long nr_pages);
191 extern void kvm_free_hpt_cma(struct page *page, unsigned long nr_pages);
192 extern int kvmppc_core_init_vm(struct kvm *kvm);
193 extern void kvmppc_core_destroy_vm(struct kvm *kvm);
194 extern void kvmppc_core_free_memslot(struct kvm *kvm,
195 struct kvm_memory_slot *free,
196 struct kvm_memory_slot *dont);
197 extern int kvmppc_core_create_memslot(struct kvm *kvm,
198 struct kvm_memory_slot *slot,
199 unsigned long npages);
200 extern int kvmppc_core_prepare_memory_region(struct kvm *kvm,
201 struct kvm_memory_slot *memslot,
202 const struct kvm_userspace_memory_region *mem);
203 extern void kvmppc_core_commit_memory_region(struct kvm *kvm,
204 const struct kvm_userspace_memory_region *mem,
205 const struct kvm_memory_slot *old,
206 const struct kvm_memory_slot *new);
207 extern int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm,
208 struct kvm_ppc_smmu_info *info);
209 extern void kvmppc_core_flush_memslot(struct kvm *kvm,
210 struct kvm_memory_slot *memslot);
212 extern int kvmppc_bookehv_init(void);
213 extern void kvmppc_bookehv_exit(void);
215 extern int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu);
217 extern int kvm_vm_ioctl_get_htab_fd(struct kvm *kvm, struct kvm_get_htab_fd *);
218 extern long kvm_vm_ioctl_resize_hpt_prepare(struct kvm *kvm,
219 struct kvm_ppc_resize_hpt *rhpt);
220 extern long kvm_vm_ioctl_resize_hpt_commit(struct kvm *kvm,
221 struct kvm_ppc_resize_hpt *rhpt);
223 int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq);
225 extern int kvm_vm_ioctl_rtas_define_token(struct kvm *kvm, void __user *argp);
226 extern int kvmppc_rtas_hcall(struct kvm_vcpu *vcpu);
227 extern void kvmppc_rtas_tokens_free(struct kvm *kvm);
228 extern int kvmppc_xics_set_xive(struct kvm *kvm, u32 irq, u32 server,
230 extern int kvmppc_xics_get_xive(struct kvm *kvm, u32 irq, u32 *server,
232 extern int kvmppc_xics_int_on(struct kvm *kvm, u32 irq);
233 extern int kvmppc_xics_int_off(struct kvm *kvm, u32 irq);
235 void kvmppc_core_dequeue_debug(struct kvm_vcpu *vcpu);
236 void kvmppc_core_queue_debug(struct kvm_vcpu *vcpu);
238 union kvmppc_one_reg {
250 struct module *owner;
251 int (*get_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
252 int (*set_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
253 int (*get_one_reg)(struct kvm_vcpu *vcpu, u64 id,
254 union kvmppc_one_reg *val);
255 int (*set_one_reg)(struct kvm_vcpu *vcpu, u64 id,
256 union kvmppc_one_reg *val);
257 void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
258 void (*vcpu_put)(struct kvm_vcpu *vcpu);
259 void (*set_msr)(struct kvm_vcpu *vcpu, u64 msr);
260 int (*vcpu_run)(struct kvm_run *run, struct kvm_vcpu *vcpu);
261 struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned int id);
262 void (*vcpu_free)(struct kvm_vcpu *vcpu);
263 int (*check_requests)(struct kvm_vcpu *vcpu);
264 int (*get_dirty_log)(struct kvm *kvm, struct kvm_dirty_log *log);
265 void (*flush_memslot)(struct kvm *kvm, struct kvm_memory_slot *memslot);
266 int (*prepare_memory_region)(struct kvm *kvm,
267 struct kvm_memory_slot *memslot,
268 const struct kvm_userspace_memory_region *mem);
269 void (*commit_memory_region)(struct kvm *kvm,
270 const struct kvm_userspace_memory_region *mem,
271 const struct kvm_memory_slot *old,
272 const struct kvm_memory_slot *new);
273 int (*unmap_hva)(struct kvm *kvm, unsigned long hva);
274 int (*unmap_hva_range)(struct kvm *kvm, unsigned long start,
276 int (*age_hva)(struct kvm *kvm, unsigned long start, unsigned long end);
277 int (*test_age_hva)(struct kvm *kvm, unsigned long hva);
278 void (*set_spte_hva)(struct kvm *kvm, unsigned long hva, pte_t pte);
279 void (*mmu_destroy)(struct kvm_vcpu *vcpu);
280 void (*free_memslot)(struct kvm_memory_slot *free,
281 struct kvm_memory_slot *dont);
282 int (*create_memslot)(struct kvm_memory_slot *slot,
283 unsigned long npages);
284 int (*init_vm)(struct kvm *kvm);
285 void (*destroy_vm)(struct kvm *kvm);
286 int (*get_smmu_info)(struct kvm *kvm, struct kvm_ppc_smmu_info *info);
287 int (*emulate_op)(struct kvm_run *run, struct kvm_vcpu *vcpu,
288 unsigned int inst, int *advance);
289 int (*emulate_mtspr)(struct kvm_vcpu *vcpu, int sprn, ulong spr_val);
290 int (*emulate_mfspr)(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val);
291 void (*fast_vcpu_kick)(struct kvm_vcpu *vcpu);
292 long (*arch_vm_ioctl)(struct file *filp, unsigned int ioctl,
294 int (*hcall_implemented)(unsigned long hcall);
295 int (*irq_bypass_add_producer)(struct irq_bypass_consumer *,
296 struct irq_bypass_producer *);
297 void (*irq_bypass_del_producer)(struct irq_bypass_consumer *,
298 struct irq_bypass_producer *);
299 int (*configure_mmu)(struct kvm *kvm, struct kvm_ppc_mmuv3_cfg *cfg);
300 int (*get_rmmu_info)(struct kvm *kvm, struct kvm_ppc_rmmu_info *info);
303 extern struct kvmppc_ops *kvmppc_hv_ops;
304 extern struct kvmppc_ops *kvmppc_pr_ops;
306 static inline int kvmppc_get_last_inst(struct kvm_vcpu *vcpu,
307 enum instruction_type type, u32 *inst)
309 int ret = EMULATE_DONE;
312 /* Load the instruction manually if it failed to do so in the
314 if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
315 ret = kvmppc_load_last_inst(vcpu, type, &vcpu->arch.last_inst);
317 /* Write fetch_failed unswapped if the fetch failed */
318 if (ret == EMULATE_DONE)
319 fetched_inst = kvmppc_need_byteswap(vcpu) ?
320 swab32(vcpu->arch.last_inst) :
321 vcpu->arch.last_inst;
323 fetched_inst = vcpu->arch.last_inst;
325 *inst = fetched_inst;
329 static inline bool is_kvmppc_hv_enabled(struct kvm *kvm)
331 return kvm->arch.kvm_ops == kvmppc_hv_ops;
334 extern int kvmppc_hwrng_present(void);
337 * Cuts out inst bits with ordering according to spec.
338 * That means the leftmost bit is zero. All given bits are included.
340 static inline u32 kvmppc_get_field(u64 inst, int msb, int lsb)
347 mask = (1 << (lsb - msb + 1)) - 1;
348 r = (inst >> (63 - lsb)) & mask;
354 * Replaces inst bits with ordering according to spec.
356 static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value)
363 mask = ((1 << (lsb - msb + 1)) - 1) << (63 - lsb);
364 r = (inst & ~mask) | ((value << (63 - lsb)) & mask);
369 #define one_reg_size(id) \
370 (1ul << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
372 #define get_reg_val(id, reg) ({ \
373 union kvmppc_one_reg __u; \
374 switch (one_reg_size(id)) { \
375 case 4: __u.wval = (reg); break; \
376 case 8: __u.dval = (reg); break; \
383 #define set_reg_val(id, val) ({ \
385 switch (one_reg_size(id)) { \
386 case 4: __v = (val).wval; break; \
387 case 8: __v = (val).dval; break; \
393 int kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
394 int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
396 int kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
397 int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
399 int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
400 int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
401 int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
402 int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
404 void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid);
408 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
409 extern void kvm_cma_reserve(void) __init;
410 static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
412 paca[cpu].kvm_hstate.xics_phys = (void __iomem *)addr;
415 static inline u32 kvmppc_get_xics_latch(void)
419 xirr = get_paca()->kvm_hstate.saved_xirr;
420 get_paca()->kvm_hstate.saved_xirr = 0;
424 static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi)
426 paca[cpu].kvm_hstate.host_ipi = host_ipi;
429 static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
431 vcpu->kvm->arch.kvm_ops->fast_vcpu_kick(vcpu);
434 extern void kvm_hv_vm_activated(void);
435 extern void kvm_hv_vm_deactivated(void);
436 extern bool kvm_hv_mode_active(void);
439 static inline void __init kvm_cma_reserve(void)
442 static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
445 static inline u32 kvmppc_get_xics_latch(void)
450 static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi)
453 static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
458 static inline bool kvm_hv_mode_active(void) { return false; }
462 #ifdef CONFIG_KVM_XICS
463 static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu)
465 return vcpu->arch.irq_type == KVMPPC_IRQ_XICS;
468 static inline struct kvmppc_passthru_irqmap *kvmppc_get_passthru_irqmap(
471 if (kvm && kvm_irq_bypass)
472 return kvm->arch.pimap;
476 extern void kvmppc_alloc_host_rm_ops(void);
477 extern void kvmppc_free_host_rm_ops(void);
478 extern void kvmppc_free_pimap(struct kvm *kvm);
479 extern int kvmppc_xics_rm_complete(struct kvm_vcpu *vcpu, u32 hcall);
480 extern void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu);
481 extern int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd);
482 extern u64 kvmppc_xics_get_icp(struct kvm_vcpu *vcpu);
483 extern int kvmppc_xics_set_icp(struct kvm_vcpu *vcpu, u64 icpval);
484 extern int kvmppc_xics_connect_vcpu(struct kvm_device *dev,
485 struct kvm_vcpu *vcpu, u32 cpu);
486 extern void kvmppc_xics_ipi_action(void);
487 extern void kvmppc_xics_set_mapped(struct kvm *kvm, unsigned long guest_irq,
488 unsigned long host_irq);
489 extern void kvmppc_xics_clr_mapped(struct kvm *kvm, unsigned long guest_irq,
490 unsigned long host_irq);
491 extern long kvmppc_deliver_irq_passthru(struct kvm_vcpu *vcpu, __be32 xirr,
492 struct kvmppc_irq_map *irq_map,
493 struct kvmppc_passthru_irqmap *pimap,
495 extern int h_ipi_redirect;
497 static inline struct kvmppc_passthru_irqmap *kvmppc_get_passthru_irqmap(
500 static inline void kvmppc_alloc_host_rm_ops(void) {};
501 static inline void kvmppc_free_host_rm_ops(void) {};
502 static inline void kvmppc_free_pimap(struct kvm *kvm) {};
503 static inline int kvmppc_xics_rm_complete(struct kvm_vcpu *vcpu, u32 hcall)
505 static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu)
507 static inline void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu) { }
508 static inline int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd)
513 * Prototypes for functions called only from assembler code.
514 * Having prototypes reduces sparse errors.
516 long kvmppc_rm_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
517 unsigned long ioba, unsigned long tce);
518 long kvmppc_rm_h_put_tce_indirect(struct kvm_vcpu *vcpu,
519 unsigned long liobn, unsigned long ioba,
520 unsigned long tce_list, unsigned long npages);
521 long kvmppc_rm_h_stuff_tce(struct kvm_vcpu *vcpu,
522 unsigned long liobn, unsigned long ioba,
523 unsigned long tce_value, unsigned long npages);
524 long int kvmppc_rm_h_confer(struct kvm_vcpu *vcpu, int target,
525 unsigned int yield_count);
526 long kvmppc_h_random(struct kvm_vcpu *vcpu);
527 void kvmhv_commence_exit(int trap);
528 long kvmppc_realmode_machine_check(struct kvm_vcpu *vcpu);
529 void kvmppc_subcore_enter_guest(void);
530 void kvmppc_subcore_exit_guest(void);
531 long kvmppc_realmode_hmi_handler(void);
532 long kvmppc_h_enter(struct kvm_vcpu *vcpu, unsigned long flags,
533 long pte_index, unsigned long pteh, unsigned long ptel);
534 long kvmppc_h_remove(struct kvm_vcpu *vcpu, unsigned long flags,
535 unsigned long pte_index, unsigned long avpn);
536 long kvmppc_h_bulk_remove(struct kvm_vcpu *vcpu);
537 long kvmppc_h_protect(struct kvm_vcpu *vcpu, unsigned long flags,
538 unsigned long pte_index, unsigned long avpn,
540 long kvmppc_h_read(struct kvm_vcpu *vcpu, unsigned long flags,
541 unsigned long pte_index);
542 long kvmppc_h_clear_ref(struct kvm_vcpu *vcpu, unsigned long flags,
543 unsigned long pte_index);
544 long kvmppc_h_clear_mod(struct kvm_vcpu *vcpu, unsigned long flags,
545 unsigned long pte_index);
546 long kvmppc_hpte_hv_fault(struct kvm_vcpu *vcpu, unsigned long addr,
547 unsigned long slb_v, unsigned int status, bool data);
548 unsigned long kvmppc_rm_h_xirr(struct kvm_vcpu *vcpu);
549 int kvmppc_rm_h_ipi(struct kvm_vcpu *vcpu, unsigned long server,
551 int kvmppc_rm_h_cppr(struct kvm_vcpu *vcpu, unsigned long cppr);
552 int kvmppc_rm_h_eoi(struct kvm_vcpu *vcpu, unsigned long xirr);
555 * Host-side operations we want to set up while running in real
556 * mode in the guest operating on the xics.
557 * Currently only VCPU wakeup is supported.
560 union kvmppc_rm_state {
568 struct kvmppc_host_rm_core {
569 union kvmppc_rm_state rm_state;
574 struct kvmppc_host_rm_ops {
575 struct kvmppc_host_rm_core *rm_core;
576 void (*vcpu_kick)(struct kvm_vcpu *vcpu);
579 extern struct kvmppc_host_rm_ops *kvmppc_host_rm_ops_hv;
581 static inline unsigned long kvmppc_get_epr(struct kvm_vcpu *vcpu)
583 #ifdef CONFIG_KVM_BOOKE_HV
584 return mfspr(SPRN_GEPR);
585 #elif defined(CONFIG_BOOKE)
586 return vcpu->arch.epr;
592 static inline void kvmppc_set_epr(struct kvm_vcpu *vcpu, u32 epr)
594 #ifdef CONFIG_KVM_BOOKE_HV
595 mtspr(SPRN_GEPR, epr);
596 #elif defined(CONFIG_BOOKE)
597 vcpu->arch.epr = epr;
601 #ifdef CONFIG_KVM_MPIC
603 void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu);
604 int kvmppc_mpic_connect_vcpu(struct kvm_device *dev, struct kvm_vcpu *vcpu,
606 void kvmppc_mpic_disconnect_vcpu(struct openpic *opp, struct kvm_vcpu *vcpu);
610 static inline void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu)
614 static inline int kvmppc_mpic_connect_vcpu(struct kvm_device *dev,
615 struct kvm_vcpu *vcpu, u32 cpu)
620 static inline void kvmppc_mpic_disconnect_vcpu(struct openpic *opp,
621 struct kvm_vcpu *vcpu)
625 #endif /* CONFIG_KVM_MPIC */
627 int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu,
628 struct kvm_config_tlb *cfg);
629 int kvm_vcpu_ioctl_dirty_tlb(struct kvm_vcpu *vcpu,
630 struct kvm_dirty_tlb *cfg);
632 long kvmppc_alloc_lpid(void);
633 void kvmppc_claim_lpid(long lpid);
634 void kvmppc_free_lpid(long lpid);
635 void kvmppc_init_lpid(unsigned long nr_lpids);
637 static inline void kvmppc_mmu_flush_icache(kvm_pfn_t pfn)
641 * We can only access pages that the kernel maps
642 * as memory. Bail out for unmapped ones.
647 /* Clear i-cache for new pages */
648 page = pfn_to_page(pfn);
649 if (!test_bit(PG_arch_1, &page->flags)) {
650 flush_dcache_icache_page(page);
651 set_bit(PG_arch_1, &page->flags);
656 * Shared struct helpers. The shared struct can be little or big endian,
657 * depending on the guest endianness. So expose helpers to all of them.
659 static inline bool kvmppc_shared_big_endian(struct kvm_vcpu *vcpu)
661 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
662 /* Only Book3S_64 PR supports bi-endian for now */
663 return vcpu->arch.shared_big_endian;
664 #elif defined(CONFIG_PPC_BOOK3S_64) && defined(__LITTLE_ENDIAN__)
665 /* Book3s_64 HV on little endian is always little endian */
672 #define SPRNG_WRAPPER_GET(reg, bookehv_spr) \
673 static inline ulong kvmppc_get_##reg(struct kvm_vcpu *vcpu) \
675 return mfspr(bookehv_spr); \
678 #define SPRNG_WRAPPER_SET(reg, bookehv_spr) \
679 static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, ulong val) \
681 mtspr(bookehv_spr, val); \
684 #define SHARED_WRAPPER_GET(reg, size) \
685 static inline u##size kvmppc_get_##reg(struct kvm_vcpu *vcpu) \
687 if (kvmppc_shared_big_endian(vcpu)) \
688 return be##size##_to_cpu(vcpu->arch.shared->reg); \
690 return le##size##_to_cpu(vcpu->arch.shared->reg); \
693 #define SHARED_WRAPPER_SET(reg, size) \
694 static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, u##size val) \
696 if (kvmppc_shared_big_endian(vcpu)) \
697 vcpu->arch.shared->reg = cpu_to_be##size(val); \
699 vcpu->arch.shared->reg = cpu_to_le##size(val); \
702 #define SHARED_WRAPPER(reg, size) \
703 SHARED_WRAPPER_GET(reg, size) \
704 SHARED_WRAPPER_SET(reg, size) \
706 #define SPRNG_WRAPPER(reg, bookehv_spr) \
707 SPRNG_WRAPPER_GET(reg, bookehv_spr) \
708 SPRNG_WRAPPER_SET(reg, bookehv_spr) \
710 #ifdef CONFIG_KVM_BOOKE_HV
712 #define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \
713 SPRNG_WRAPPER(reg, bookehv_spr) \
717 #define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \
718 SHARED_WRAPPER(reg, size) \
722 SHARED_WRAPPER(critical, 64)
723 SHARED_SPRNG_WRAPPER(sprg0, 64, SPRN_GSPRG0)
724 SHARED_SPRNG_WRAPPER(sprg1, 64, SPRN_GSPRG1)
725 SHARED_SPRNG_WRAPPER(sprg2, 64, SPRN_GSPRG2)
726 SHARED_SPRNG_WRAPPER(sprg3, 64, SPRN_GSPRG3)
727 SHARED_SPRNG_WRAPPER(srr0, 64, SPRN_GSRR0)
728 SHARED_SPRNG_WRAPPER(srr1, 64, SPRN_GSRR1)
729 SHARED_SPRNG_WRAPPER(dar, 64, SPRN_GDEAR)
730 SHARED_SPRNG_WRAPPER(esr, 64, SPRN_GESR)
731 SHARED_WRAPPER_GET(msr, 64)
732 static inline void kvmppc_set_msr_fast(struct kvm_vcpu *vcpu, u64 val)
734 if (kvmppc_shared_big_endian(vcpu))
735 vcpu->arch.shared->msr = cpu_to_be64(val);
737 vcpu->arch.shared->msr = cpu_to_le64(val);
739 SHARED_WRAPPER(dsisr, 32)
740 SHARED_WRAPPER(int_pending, 32)
741 SHARED_WRAPPER(sprg4, 64)
742 SHARED_WRAPPER(sprg5, 64)
743 SHARED_WRAPPER(sprg6, 64)
744 SHARED_WRAPPER(sprg7, 64)
746 static inline u32 kvmppc_get_sr(struct kvm_vcpu *vcpu, int nr)
748 if (kvmppc_shared_big_endian(vcpu))
749 return be32_to_cpu(vcpu->arch.shared->sr[nr]);
751 return le32_to_cpu(vcpu->arch.shared->sr[nr]);
754 static inline void kvmppc_set_sr(struct kvm_vcpu *vcpu, int nr, u32 val)
756 if (kvmppc_shared_big_endian(vcpu))
757 vcpu->arch.shared->sr[nr] = cpu_to_be32(val);
759 vcpu->arch.shared->sr[nr] = cpu_to_le32(val);
763 * Please call after prepare_to_enter. This function puts the lazy ee and irq
764 * disabled tracking state back to normal mode, without actually enabling
767 static inline void kvmppc_fix_ee_before_entry(void)
773 * To avoid races, the caller must have gone directly from having
774 * interrupts fully-enabled to hard-disabled.
776 WARN_ON(local_paca->irq_happened != PACA_IRQ_HARD_DIS);
778 /* Only need to enable IRQs by hard enabling them after this */
779 local_paca->irq_happened = 0;
780 local_paca->soft_enabled = 1;
784 static inline ulong kvmppc_get_ea_indexed(struct kvm_vcpu *vcpu, int ra, int rb)
789 ea = kvmppc_get_gpr(vcpu, rb);
791 ea += kvmppc_get_gpr(vcpu, ra);
793 #if defined(CONFIG_PPC_BOOK3E_64)
795 #elif defined(CONFIG_PPC_BOOK3S_64)
799 if (!(kvmppc_get_msr(vcpu) & msr_64bit))
805 extern void xics_wake_cpu(int cpu);
807 #endif /* __POWERPC_KVM_PPC_H__ */