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 long kvmppc_alloc_hpt(struct kvm *kvm, u32 *htab_orderp);
159 extern long kvmppc_alloc_reset_hpt(struct kvm *kvm, u32 *htab_orderp);
160 extern void kvmppc_free_hpt(struct kvm *kvm);
161 extern long kvmppc_prepare_vrma(struct kvm *kvm,
162 struct kvm_userspace_memory_region *mem);
163 extern void kvmppc_map_vrma(struct kvm_vcpu *vcpu,
164 struct kvm_memory_slot *memslot, unsigned long porder);
165 extern int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu);
167 extern long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm,
168 struct kvm_create_spapr_tce_64 *args);
169 extern struct kvmppc_spapr_tce_table *kvmppc_find_table(
170 struct kvm_vcpu *vcpu, unsigned long liobn);
171 extern long kvmppc_ioba_validate(struct kvmppc_spapr_tce_table *stt,
172 unsigned long ioba, unsigned long npages);
173 extern long kvmppc_tce_validate(struct kvmppc_spapr_tce_table *tt,
175 extern long kvmppc_gpa_to_ua(struct kvm *kvm, unsigned long gpa,
176 unsigned long *ua, unsigned long **prmap);
177 extern void kvmppc_tce_put(struct kvmppc_spapr_tce_table *tt,
178 unsigned long idx, unsigned long tce);
179 extern long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
180 unsigned long ioba, unsigned long tce);
181 extern long kvmppc_h_put_tce_indirect(struct kvm_vcpu *vcpu,
182 unsigned long liobn, unsigned long ioba,
183 unsigned long tce_list, unsigned long npages);
184 extern long kvmppc_h_stuff_tce(struct kvm_vcpu *vcpu,
185 unsigned long liobn, unsigned long ioba,
186 unsigned long tce_value, unsigned long npages);
187 extern long kvmppc_h_get_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
189 extern struct page *kvm_alloc_hpt(unsigned long nr_pages);
190 extern void kvm_release_hpt(struct page *page, unsigned long nr_pages);
191 extern int kvmppc_core_init_vm(struct kvm *kvm);
192 extern void kvmppc_core_destroy_vm(struct kvm *kvm);
193 extern void kvmppc_core_free_memslot(struct kvm *kvm,
194 struct kvm_memory_slot *free,
195 struct kvm_memory_slot *dont);
196 extern int kvmppc_core_create_memslot(struct kvm *kvm,
197 struct kvm_memory_slot *slot,
198 unsigned long npages);
199 extern int kvmppc_core_prepare_memory_region(struct kvm *kvm,
200 struct kvm_memory_slot *memslot,
201 const struct kvm_userspace_memory_region *mem);
202 extern void kvmppc_core_commit_memory_region(struct kvm *kvm,
203 const struct kvm_userspace_memory_region *mem,
204 const struct kvm_memory_slot *old,
205 const struct kvm_memory_slot *new);
206 extern int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm,
207 struct kvm_ppc_smmu_info *info);
208 extern void kvmppc_core_flush_memslot(struct kvm *kvm,
209 struct kvm_memory_slot *memslot);
211 extern int kvmppc_bookehv_init(void);
212 extern void kvmppc_bookehv_exit(void);
214 extern int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu);
216 extern int kvm_vm_ioctl_get_htab_fd(struct kvm *kvm, struct kvm_get_htab_fd *);
218 int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq);
220 extern int kvm_vm_ioctl_rtas_define_token(struct kvm *kvm, void __user *argp);
221 extern int kvmppc_rtas_hcall(struct kvm_vcpu *vcpu);
222 extern void kvmppc_rtas_tokens_free(struct kvm *kvm);
223 extern int kvmppc_xics_set_xive(struct kvm *kvm, u32 irq, u32 server,
225 extern int kvmppc_xics_get_xive(struct kvm *kvm, u32 irq, u32 *server,
227 extern int kvmppc_xics_int_on(struct kvm *kvm, u32 irq);
228 extern int kvmppc_xics_int_off(struct kvm *kvm, u32 irq);
230 void kvmppc_core_dequeue_debug(struct kvm_vcpu *vcpu);
231 void kvmppc_core_queue_debug(struct kvm_vcpu *vcpu);
233 union kvmppc_one_reg {
245 struct module *owner;
246 int (*get_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
247 int (*set_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
248 int (*get_one_reg)(struct kvm_vcpu *vcpu, u64 id,
249 union kvmppc_one_reg *val);
250 int (*set_one_reg)(struct kvm_vcpu *vcpu, u64 id,
251 union kvmppc_one_reg *val);
252 void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
253 void (*vcpu_put)(struct kvm_vcpu *vcpu);
254 void (*set_msr)(struct kvm_vcpu *vcpu, u64 msr);
255 int (*vcpu_run)(struct kvm_run *run, struct kvm_vcpu *vcpu);
256 struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned int id);
257 void (*vcpu_free)(struct kvm_vcpu *vcpu);
258 int (*check_requests)(struct kvm_vcpu *vcpu);
259 int (*get_dirty_log)(struct kvm *kvm, struct kvm_dirty_log *log);
260 void (*flush_memslot)(struct kvm *kvm, struct kvm_memory_slot *memslot);
261 int (*prepare_memory_region)(struct kvm *kvm,
262 struct kvm_memory_slot *memslot,
263 const struct kvm_userspace_memory_region *mem);
264 void (*commit_memory_region)(struct kvm *kvm,
265 const struct kvm_userspace_memory_region *mem,
266 const struct kvm_memory_slot *old,
267 const struct kvm_memory_slot *new);
268 int (*unmap_hva)(struct kvm *kvm, unsigned long hva);
269 int (*unmap_hva_range)(struct kvm *kvm, unsigned long start,
271 int (*age_hva)(struct kvm *kvm, unsigned long start, unsigned long end);
272 int (*test_age_hva)(struct kvm *kvm, unsigned long hva);
273 void (*set_spte_hva)(struct kvm *kvm, unsigned long hva, pte_t pte);
274 void (*mmu_destroy)(struct kvm_vcpu *vcpu);
275 void (*free_memslot)(struct kvm_memory_slot *free,
276 struct kvm_memory_slot *dont);
277 int (*create_memslot)(struct kvm_memory_slot *slot,
278 unsigned long npages);
279 int (*init_vm)(struct kvm *kvm);
280 void (*destroy_vm)(struct kvm *kvm);
281 int (*get_smmu_info)(struct kvm *kvm, struct kvm_ppc_smmu_info *info);
282 int (*emulate_op)(struct kvm_run *run, struct kvm_vcpu *vcpu,
283 unsigned int inst, int *advance);
284 int (*emulate_mtspr)(struct kvm_vcpu *vcpu, int sprn, ulong spr_val);
285 int (*emulate_mfspr)(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val);
286 void (*fast_vcpu_kick)(struct kvm_vcpu *vcpu);
287 long (*arch_vm_ioctl)(struct file *filp, unsigned int ioctl,
289 int (*hcall_implemented)(unsigned long hcall);
292 extern struct kvmppc_ops *kvmppc_hv_ops;
293 extern struct kvmppc_ops *kvmppc_pr_ops;
295 static inline int kvmppc_get_last_inst(struct kvm_vcpu *vcpu,
296 enum instruction_type type, u32 *inst)
298 int ret = EMULATE_DONE;
301 /* Load the instruction manually if it failed to do so in the
303 if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
304 ret = kvmppc_load_last_inst(vcpu, type, &vcpu->arch.last_inst);
306 /* Write fetch_failed unswapped if the fetch failed */
307 if (ret == EMULATE_DONE)
308 fetched_inst = kvmppc_need_byteswap(vcpu) ?
309 swab32(vcpu->arch.last_inst) :
310 vcpu->arch.last_inst;
312 fetched_inst = vcpu->arch.last_inst;
314 *inst = fetched_inst;
318 static inline bool is_kvmppc_hv_enabled(struct kvm *kvm)
320 return kvm->arch.kvm_ops == kvmppc_hv_ops;
323 extern int kvmppc_hwrng_present(void);
326 * Cuts out inst bits with ordering according to spec.
327 * That means the leftmost bit is zero. All given bits are included.
329 static inline u32 kvmppc_get_field(u64 inst, int msb, int lsb)
336 mask = (1 << (lsb - msb + 1)) - 1;
337 r = (inst >> (63 - lsb)) & mask;
343 * Replaces inst bits with ordering according to spec.
345 static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value)
352 mask = ((1 << (lsb - msb + 1)) - 1) << (63 - lsb);
353 r = (inst & ~mask) | ((value << (63 - lsb)) & mask);
358 #define one_reg_size(id) \
359 (1ul << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
361 #define get_reg_val(id, reg) ({ \
362 union kvmppc_one_reg __u; \
363 switch (one_reg_size(id)) { \
364 case 4: __u.wval = (reg); break; \
365 case 8: __u.dval = (reg); break; \
372 #define set_reg_val(id, val) ({ \
374 switch (one_reg_size(id)) { \
375 case 4: __v = (val).wval; break; \
376 case 8: __v = (val).dval; break; \
382 int kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
383 int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
385 int kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
386 int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
388 int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
389 int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
390 int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
391 int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
393 void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid);
397 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
398 extern void kvm_cma_reserve(void) __init;
399 static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
401 paca[cpu].kvm_hstate.xics_phys = addr;
404 static inline u32 kvmppc_get_xics_latch(void)
408 xirr = get_paca()->kvm_hstate.saved_xirr;
409 get_paca()->kvm_hstate.saved_xirr = 0;
413 static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi)
415 paca[cpu].kvm_hstate.host_ipi = host_ipi;
418 static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
420 vcpu->kvm->arch.kvm_ops->fast_vcpu_kick(vcpu);
423 extern void kvm_hv_vm_activated(void);
424 extern void kvm_hv_vm_deactivated(void);
425 extern bool kvm_hv_mode_active(void);
428 static inline void __init kvm_cma_reserve(void)
431 static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
434 static inline u32 kvmppc_get_xics_latch(void)
439 static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi)
442 static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
447 static inline bool kvm_hv_mode_active(void) { return false; }
451 #ifdef CONFIG_KVM_XICS
452 static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu)
454 return vcpu->arch.irq_type == KVMPPC_IRQ_XICS;
456 extern void kvmppc_alloc_host_rm_ops(void);
457 extern void kvmppc_free_host_rm_ops(void);
458 extern void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu);
459 extern int kvmppc_xics_create_icp(struct kvm_vcpu *vcpu, unsigned long server);
460 extern int kvm_vm_ioctl_xics_irq(struct kvm *kvm, struct kvm_irq_level *args);
461 extern int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd);
462 extern u64 kvmppc_xics_get_icp(struct kvm_vcpu *vcpu);
463 extern int kvmppc_xics_set_icp(struct kvm_vcpu *vcpu, u64 icpval);
464 extern int kvmppc_xics_connect_vcpu(struct kvm_device *dev,
465 struct kvm_vcpu *vcpu, u32 cpu);
466 extern void kvmppc_xics_ipi_action(void);
467 extern int h_ipi_redirect;
469 static inline void kvmppc_alloc_host_rm_ops(void) {};
470 static inline void kvmppc_free_host_rm_ops(void) {};
471 static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu)
473 static inline void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu) { }
474 static inline int kvmppc_xics_create_icp(struct kvm_vcpu *vcpu,
475 unsigned long server)
477 static inline int kvm_vm_ioctl_xics_irq(struct kvm *kvm,
478 struct kvm_irq_level *args)
480 static inline int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd)
485 * Host-side operations we want to set up while running in real
486 * mode in the guest operating on the xics.
487 * Currently only VCPU wakeup is supported.
490 union kvmppc_rm_state {
498 struct kvmppc_host_rm_core {
499 union kvmppc_rm_state rm_state;
504 struct kvmppc_host_rm_ops {
505 struct kvmppc_host_rm_core *rm_core;
506 void (*vcpu_kick)(struct kvm_vcpu *vcpu);
509 extern struct kvmppc_host_rm_ops *kvmppc_host_rm_ops_hv;
511 static inline unsigned long kvmppc_get_epr(struct kvm_vcpu *vcpu)
513 #ifdef CONFIG_KVM_BOOKE_HV
514 return mfspr(SPRN_GEPR);
515 #elif defined(CONFIG_BOOKE)
516 return vcpu->arch.epr;
522 static inline void kvmppc_set_epr(struct kvm_vcpu *vcpu, u32 epr)
524 #ifdef CONFIG_KVM_BOOKE_HV
525 mtspr(SPRN_GEPR, epr);
526 #elif defined(CONFIG_BOOKE)
527 vcpu->arch.epr = epr;
531 #ifdef CONFIG_KVM_MPIC
533 void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu);
534 int kvmppc_mpic_connect_vcpu(struct kvm_device *dev, struct kvm_vcpu *vcpu,
536 void kvmppc_mpic_disconnect_vcpu(struct openpic *opp, struct kvm_vcpu *vcpu);
540 static inline void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu)
544 static inline int kvmppc_mpic_connect_vcpu(struct kvm_device *dev,
545 struct kvm_vcpu *vcpu, u32 cpu)
550 static inline void kvmppc_mpic_disconnect_vcpu(struct openpic *opp,
551 struct kvm_vcpu *vcpu)
555 #endif /* CONFIG_KVM_MPIC */
557 int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu,
558 struct kvm_config_tlb *cfg);
559 int kvm_vcpu_ioctl_dirty_tlb(struct kvm_vcpu *vcpu,
560 struct kvm_dirty_tlb *cfg);
562 long kvmppc_alloc_lpid(void);
563 void kvmppc_claim_lpid(long lpid);
564 void kvmppc_free_lpid(long lpid);
565 void kvmppc_init_lpid(unsigned long nr_lpids);
567 static inline void kvmppc_mmu_flush_icache(kvm_pfn_t pfn)
571 * We can only access pages that the kernel maps
572 * as memory. Bail out for unmapped ones.
577 /* Clear i-cache for new pages */
578 page = pfn_to_page(pfn);
579 if (!test_bit(PG_arch_1, &page->flags)) {
580 flush_dcache_icache_page(page);
581 set_bit(PG_arch_1, &page->flags);
586 * Shared struct helpers. The shared struct can be little or big endian,
587 * depending on the guest endianness. So expose helpers to all of them.
589 static inline bool kvmppc_shared_big_endian(struct kvm_vcpu *vcpu)
591 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
592 /* Only Book3S_64 PR supports bi-endian for now */
593 return vcpu->arch.shared_big_endian;
594 #elif defined(CONFIG_PPC_BOOK3S_64) && defined(__LITTLE_ENDIAN__)
595 /* Book3s_64 HV on little endian is always little endian */
602 #define SPRNG_WRAPPER_GET(reg, bookehv_spr) \
603 static inline ulong kvmppc_get_##reg(struct kvm_vcpu *vcpu) \
605 return mfspr(bookehv_spr); \
608 #define SPRNG_WRAPPER_SET(reg, bookehv_spr) \
609 static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, ulong val) \
611 mtspr(bookehv_spr, val); \
614 #define SHARED_WRAPPER_GET(reg, size) \
615 static inline u##size kvmppc_get_##reg(struct kvm_vcpu *vcpu) \
617 if (kvmppc_shared_big_endian(vcpu)) \
618 return be##size##_to_cpu(vcpu->arch.shared->reg); \
620 return le##size##_to_cpu(vcpu->arch.shared->reg); \
623 #define SHARED_WRAPPER_SET(reg, size) \
624 static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, u##size val) \
626 if (kvmppc_shared_big_endian(vcpu)) \
627 vcpu->arch.shared->reg = cpu_to_be##size(val); \
629 vcpu->arch.shared->reg = cpu_to_le##size(val); \
632 #define SHARED_WRAPPER(reg, size) \
633 SHARED_WRAPPER_GET(reg, size) \
634 SHARED_WRAPPER_SET(reg, size) \
636 #define SPRNG_WRAPPER(reg, bookehv_spr) \
637 SPRNG_WRAPPER_GET(reg, bookehv_spr) \
638 SPRNG_WRAPPER_SET(reg, bookehv_spr) \
640 #ifdef CONFIG_KVM_BOOKE_HV
642 #define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \
643 SPRNG_WRAPPER(reg, bookehv_spr) \
647 #define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \
648 SHARED_WRAPPER(reg, size) \
652 SHARED_WRAPPER(critical, 64)
653 SHARED_SPRNG_WRAPPER(sprg0, 64, SPRN_GSPRG0)
654 SHARED_SPRNG_WRAPPER(sprg1, 64, SPRN_GSPRG1)
655 SHARED_SPRNG_WRAPPER(sprg2, 64, SPRN_GSPRG2)
656 SHARED_SPRNG_WRAPPER(sprg3, 64, SPRN_GSPRG3)
657 SHARED_SPRNG_WRAPPER(srr0, 64, SPRN_GSRR0)
658 SHARED_SPRNG_WRAPPER(srr1, 64, SPRN_GSRR1)
659 SHARED_SPRNG_WRAPPER(dar, 64, SPRN_GDEAR)
660 SHARED_SPRNG_WRAPPER(esr, 64, SPRN_GESR)
661 SHARED_WRAPPER_GET(msr, 64)
662 static inline void kvmppc_set_msr_fast(struct kvm_vcpu *vcpu, u64 val)
664 if (kvmppc_shared_big_endian(vcpu))
665 vcpu->arch.shared->msr = cpu_to_be64(val);
667 vcpu->arch.shared->msr = cpu_to_le64(val);
669 SHARED_WRAPPER(dsisr, 32)
670 SHARED_WRAPPER(int_pending, 32)
671 SHARED_WRAPPER(sprg4, 64)
672 SHARED_WRAPPER(sprg5, 64)
673 SHARED_WRAPPER(sprg6, 64)
674 SHARED_WRAPPER(sprg7, 64)
676 static inline u32 kvmppc_get_sr(struct kvm_vcpu *vcpu, int nr)
678 if (kvmppc_shared_big_endian(vcpu))
679 return be32_to_cpu(vcpu->arch.shared->sr[nr]);
681 return le32_to_cpu(vcpu->arch.shared->sr[nr]);
684 static inline void kvmppc_set_sr(struct kvm_vcpu *vcpu, int nr, u32 val)
686 if (kvmppc_shared_big_endian(vcpu))
687 vcpu->arch.shared->sr[nr] = cpu_to_be32(val);
689 vcpu->arch.shared->sr[nr] = cpu_to_le32(val);
693 * Please call after prepare_to_enter. This function puts the lazy ee and irq
694 * disabled tracking state back to normal mode, without actually enabling
697 static inline void kvmppc_fix_ee_before_entry(void)
703 * To avoid races, the caller must have gone directly from having
704 * interrupts fully-enabled to hard-disabled.
706 WARN_ON(local_paca->irq_happened != PACA_IRQ_HARD_DIS);
708 /* Only need to enable IRQs by hard enabling them after this */
709 local_paca->irq_happened = 0;
710 local_paca->soft_enabled = 1;
714 static inline ulong kvmppc_get_ea_indexed(struct kvm_vcpu *vcpu, int ra, int rb)
719 ea = kvmppc_get_gpr(vcpu, rb);
721 ea += kvmppc_get_gpr(vcpu, ra);
723 #if defined(CONFIG_PPC_BOOK3E_64)
725 #elif defined(CONFIG_PPC_BOOK3S_64)
729 if (!(kvmppc_get_msr(vcpu) & msr_64bit))
735 extern void xics_wake_cpu(int cpu);
737 #endif /* __POWERPC_KVM_PPC_H__ */