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
);
290 int (*irq_bypass_add_producer
)(struct irq_bypass_consumer
*,
291 struct irq_bypass_producer
*);
292 void (*irq_bypass_del_producer
)(struct irq_bypass_consumer
*,
293 struct irq_bypass_producer
*);
296 extern struct kvmppc_ops
*kvmppc_hv_ops
;
297 extern struct kvmppc_ops
*kvmppc_pr_ops
;
299 static inline int kvmppc_get_last_inst(struct kvm_vcpu
*vcpu
,
300 enum instruction_type type
, u32
*inst
)
302 int ret
= EMULATE_DONE
;
305 /* Load the instruction manually if it failed to do so in the
307 if (vcpu
->arch
.last_inst
== KVM_INST_FETCH_FAILED
)
308 ret
= kvmppc_load_last_inst(vcpu
, type
, &vcpu
->arch
.last_inst
);
310 /* Write fetch_failed unswapped if the fetch failed */
311 if (ret
== EMULATE_DONE
)
312 fetched_inst
= kvmppc_need_byteswap(vcpu
) ?
313 swab32(vcpu
->arch
.last_inst
) :
314 vcpu
->arch
.last_inst
;
316 fetched_inst
= vcpu
->arch
.last_inst
;
318 *inst
= fetched_inst
;
322 static inline bool is_kvmppc_hv_enabled(struct kvm
*kvm
)
324 return kvm
->arch
.kvm_ops
== kvmppc_hv_ops
;
327 extern int kvmppc_hwrng_present(void);
330 * Cuts out inst bits with ordering according to spec.
331 * That means the leftmost bit is zero. All given bits are included.
333 static inline u32
kvmppc_get_field(u64 inst
, int msb
, int lsb
)
340 mask
= (1 << (lsb
- msb
+ 1)) - 1;
341 r
= (inst
>> (63 - lsb
)) & mask
;
347 * Replaces inst bits with ordering according to spec.
349 static inline u32
kvmppc_set_field(u64 inst
, int msb
, int lsb
, int value
)
356 mask
= ((1 << (lsb
- msb
+ 1)) - 1) << (63 - lsb
);
357 r
= (inst
& ~mask
) | ((value
<< (63 - lsb
)) & mask
);
362 #define one_reg_size(id) \
363 (1ul << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
365 #define get_reg_val(id, reg) ({ \
366 union kvmppc_one_reg __u; \
367 switch (one_reg_size(id)) { \
368 case 4: __u.wval = (reg); break; \
369 case 8: __u.dval = (reg); break; \
376 #define set_reg_val(id, val) ({ \
378 switch (one_reg_size(id)) { \
379 case 4: __v = (val).wval; break; \
380 case 8: __v = (val).dval; break; \
386 int kvmppc_core_get_sregs(struct kvm_vcpu
*vcpu
, struct kvm_sregs
*sregs
);
387 int kvmppc_core_set_sregs(struct kvm_vcpu
*vcpu
, struct kvm_sregs
*sregs
);
389 int kvmppc_get_sregs_ivor(struct kvm_vcpu
*vcpu
, struct kvm_sregs
*sregs
);
390 int kvmppc_set_sregs_ivor(struct kvm_vcpu
*vcpu
, struct kvm_sregs
*sregs
);
392 int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu
*vcpu
, struct kvm_one_reg
*reg
);
393 int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu
*vcpu
, struct kvm_one_reg
*reg
);
394 int kvmppc_get_one_reg(struct kvm_vcpu
*vcpu
, u64 id
, union kvmppc_one_reg
*);
395 int kvmppc_set_one_reg(struct kvm_vcpu
*vcpu
, u64 id
, union kvmppc_one_reg
*);
397 void kvmppc_set_pid(struct kvm_vcpu
*vcpu
, u32 pid
);
401 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
402 extern void kvm_cma_reserve(void) __init
;
403 static inline void kvmppc_set_xics_phys(int cpu
, unsigned long addr
)
405 paca
[cpu
].kvm_hstate
.xics_phys
= addr
;
408 static inline u32
kvmppc_get_xics_latch(void)
412 xirr
= get_paca()->kvm_hstate
.saved_xirr
;
413 get_paca()->kvm_hstate
.saved_xirr
= 0;
417 static inline void kvmppc_set_host_ipi(int cpu
, u8 host_ipi
)
419 paca
[cpu
].kvm_hstate
.host_ipi
= host_ipi
;
422 static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu
*vcpu
)
424 vcpu
->kvm
->arch
.kvm_ops
->fast_vcpu_kick(vcpu
);
427 extern void kvm_hv_vm_activated(void);
428 extern void kvm_hv_vm_deactivated(void);
429 extern bool kvm_hv_mode_active(void);
432 static inline void __init
kvm_cma_reserve(void)
435 static inline void kvmppc_set_xics_phys(int cpu
, unsigned long addr
)
438 static inline u32
kvmppc_get_xics_latch(void)
443 static inline void kvmppc_set_host_ipi(int cpu
, u8 host_ipi
)
446 static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu
*vcpu
)
451 static inline bool kvm_hv_mode_active(void) { return false; }
455 #ifdef CONFIG_KVM_XICS
456 static inline int kvmppc_xics_enabled(struct kvm_vcpu
*vcpu
)
458 return vcpu
->arch
.irq_type
== KVMPPC_IRQ_XICS
;
461 static inline struct kvmppc_passthru_irqmap
*kvmppc_get_passthru_irqmap(
464 if (kvm
&& kvm_irq_bypass
)
465 return kvm
->arch
.pimap
;
469 extern void kvmppc_alloc_host_rm_ops(void);
470 extern void kvmppc_free_host_rm_ops(void);
471 extern void kvmppc_free_pimap(struct kvm
*kvm
);
472 extern int kvmppc_xics_rm_complete(struct kvm_vcpu
*vcpu
, u32 hcall
);
473 extern void kvmppc_xics_free_icp(struct kvm_vcpu
*vcpu
);
474 extern int kvmppc_xics_create_icp(struct kvm_vcpu
*vcpu
, unsigned long server
);
475 extern int kvm_vm_ioctl_xics_irq(struct kvm
*kvm
, struct kvm_irq_level
*args
);
476 extern int kvmppc_xics_hcall(struct kvm_vcpu
*vcpu
, u32 cmd
);
477 extern u64
kvmppc_xics_get_icp(struct kvm_vcpu
*vcpu
);
478 extern int kvmppc_xics_set_icp(struct kvm_vcpu
*vcpu
, u64 icpval
);
479 extern int kvmppc_xics_connect_vcpu(struct kvm_device
*dev
,
480 struct kvm_vcpu
*vcpu
, u32 cpu
);
481 extern void kvmppc_xics_ipi_action(void);
482 extern void kvmppc_xics_set_mapped(struct kvm
*kvm
, unsigned long guest_irq
,
483 unsigned long host_irq
);
484 extern void kvmppc_xics_clr_mapped(struct kvm
*kvm
, unsigned long guest_irq
,
485 unsigned long host_irq
);
486 extern long kvmppc_deliver_irq_passthru(struct kvm_vcpu
*vcpu
, __be32 xirr
,
487 struct kvmppc_irq_map
*irq_map
,
488 struct kvmppc_passthru_irqmap
*pimap
,
490 extern int h_ipi_redirect
;
492 static inline struct kvmppc_passthru_irqmap
*kvmppc_get_passthru_irqmap(
495 static inline void kvmppc_alloc_host_rm_ops(void) {};
496 static inline void kvmppc_free_host_rm_ops(void) {};
497 static inline void kvmppc_free_pimap(struct kvm
*kvm
) {};
498 static inline int kvmppc_xics_rm_complete(struct kvm_vcpu
*vcpu
, u32 hcall
)
500 static inline int kvmppc_xics_enabled(struct kvm_vcpu
*vcpu
)
502 static inline void kvmppc_xics_free_icp(struct kvm_vcpu
*vcpu
) { }
503 static inline int kvmppc_xics_create_icp(struct kvm_vcpu
*vcpu
,
504 unsigned long server
)
506 static inline int kvm_vm_ioctl_xics_irq(struct kvm
*kvm
,
507 struct kvm_irq_level
*args
)
509 static inline int kvmppc_xics_hcall(struct kvm_vcpu
*vcpu
, u32 cmd
)
514 * Prototypes for functions called only from assembler code.
515 * Having prototypes reduces sparse errors.
517 long kvmppc_rm_h_put_tce(struct kvm_vcpu
*vcpu
, unsigned long liobn
,
518 unsigned long ioba
, unsigned long tce
);
519 long kvmppc_rm_h_put_tce_indirect(struct kvm_vcpu
*vcpu
,
520 unsigned long liobn
, unsigned long ioba
,
521 unsigned long tce_list
, unsigned long npages
);
522 long kvmppc_rm_h_stuff_tce(struct kvm_vcpu
*vcpu
,
523 unsigned long liobn
, unsigned long ioba
,
524 unsigned long tce_value
, unsigned long npages
);
525 long int kvmppc_rm_h_confer(struct kvm_vcpu
*vcpu
, int target
,
526 unsigned int yield_count
);
527 long kvmppc_h_random(struct kvm_vcpu
*vcpu
);
528 void kvmhv_commence_exit(int trap
);
529 long kvmppc_realmode_machine_check(struct kvm_vcpu
*vcpu
);
530 void kvmppc_subcore_enter_guest(void);
531 void kvmppc_subcore_exit_guest(void);
532 long kvmppc_realmode_hmi_handler(void);
533 long kvmppc_h_enter(struct kvm_vcpu
*vcpu
, unsigned long flags
,
534 long pte_index
, unsigned long pteh
, unsigned long ptel
);
535 long kvmppc_h_remove(struct kvm_vcpu
*vcpu
, unsigned long flags
,
536 unsigned long pte_index
, unsigned long avpn
);
537 long kvmppc_h_bulk_remove(struct kvm_vcpu
*vcpu
);
538 long kvmppc_h_protect(struct kvm_vcpu
*vcpu
, unsigned long flags
,
539 unsigned long pte_index
, unsigned long avpn
,
541 long kvmppc_h_read(struct kvm_vcpu
*vcpu
, unsigned long flags
,
542 unsigned long pte_index
);
543 long kvmppc_h_clear_ref(struct kvm_vcpu
*vcpu
, unsigned long flags
,
544 unsigned long pte_index
);
545 long kvmppc_h_clear_mod(struct kvm_vcpu
*vcpu
, unsigned long flags
,
546 unsigned long pte_index
);
547 long kvmppc_hpte_hv_fault(struct kvm_vcpu
*vcpu
, unsigned long addr
,
548 unsigned long slb_v
, unsigned int status
, bool data
);
549 unsigned long kvmppc_rm_h_xirr(struct kvm_vcpu
*vcpu
);
550 int kvmppc_rm_h_ipi(struct kvm_vcpu
*vcpu
, unsigned long server
,
552 int kvmppc_rm_h_cppr(struct kvm_vcpu
*vcpu
, unsigned long cppr
);
553 int kvmppc_rm_h_eoi(struct kvm_vcpu
*vcpu
, unsigned long xirr
);
556 * Host-side operations we want to set up while running in real
557 * mode in the guest operating on the xics.
558 * Currently only VCPU wakeup is supported.
561 union kvmppc_rm_state
{
569 struct kvmppc_host_rm_core
{
570 union kvmppc_rm_state rm_state
;
575 struct kvmppc_host_rm_ops
{
576 struct kvmppc_host_rm_core
*rm_core
;
577 void (*vcpu_kick
)(struct kvm_vcpu
*vcpu
);
580 extern struct kvmppc_host_rm_ops
*kvmppc_host_rm_ops_hv
;
582 static inline unsigned long kvmppc_get_epr(struct kvm_vcpu
*vcpu
)
584 #ifdef CONFIG_KVM_BOOKE_HV
585 return mfspr(SPRN_GEPR
);
586 #elif defined(CONFIG_BOOKE)
587 return vcpu
->arch
.epr
;
593 static inline void kvmppc_set_epr(struct kvm_vcpu
*vcpu
, u32 epr
)
595 #ifdef CONFIG_KVM_BOOKE_HV
596 mtspr(SPRN_GEPR
, epr
);
597 #elif defined(CONFIG_BOOKE)
598 vcpu
->arch
.epr
= epr
;
602 #ifdef CONFIG_KVM_MPIC
604 void kvmppc_mpic_set_epr(struct kvm_vcpu
*vcpu
);
605 int kvmppc_mpic_connect_vcpu(struct kvm_device
*dev
, struct kvm_vcpu
*vcpu
,
607 void kvmppc_mpic_disconnect_vcpu(struct openpic
*opp
, struct kvm_vcpu
*vcpu
);
611 static inline void kvmppc_mpic_set_epr(struct kvm_vcpu
*vcpu
)
615 static inline int kvmppc_mpic_connect_vcpu(struct kvm_device
*dev
,
616 struct kvm_vcpu
*vcpu
, u32 cpu
)
621 static inline void kvmppc_mpic_disconnect_vcpu(struct openpic
*opp
,
622 struct kvm_vcpu
*vcpu
)
626 #endif /* CONFIG_KVM_MPIC */
628 int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu
*vcpu
,
629 struct kvm_config_tlb
*cfg
);
630 int kvm_vcpu_ioctl_dirty_tlb(struct kvm_vcpu
*vcpu
,
631 struct kvm_dirty_tlb
*cfg
);
633 long kvmppc_alloc_lpid(void);
634 void kvmppc_claim_lpid(long lpid
);
635 void kvmppc_free_lpid(long lpid
);
636 void kvmppc_init_lpid(unsigned long nr_lpids
);
638 static inline void kvmppc_mmu_flush_icache(kvm_pfn_t pfn
)
642 * We can only access pages that the kernel maps
643 * as memory. Bail out for unmapped ones.
648 /* Clear i-cache for new pages */
649 page
= pfn_to_page(pfn
);
650 if (!test_bit(PG_arch_1
, &page
->flags
)) {
651 flush_dcache_icache_page(page
);
652 set_bit(PG_arch_1
, &page
->flags
);
657 * Shared struct helpers. The shared struct can be little or big endian,
658 * depending on the guest endianness. So expose helpers to all of them.
660 static inline bool kvmppc_shared_big_endian(struct kvm_vcpu
*vcpu
)
662 #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
663 /* Only Book3S_64 PR supports bi-endian for now */
664 return vcpu
->arch
.shared_big_endian
;
665 #elif defined(CONFIG_PPC_BOOK3S_64) && defined(__LITTLE_ENDIAN__)
666 /* Book3s_64 HV on little endian is always little endian */
673 #define SPRNG_WRAPPER_GET(reg, bookehv_spr) \
674 static inline ulong kvmppc_get_##reg(struct kvm_vcpu *vcpu) \
676 return mfspr(bookehv_spr); \
679 #define SPRNG_WRAPPER_SET(reg, bookehv_spr) \
680 static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, ulong val) \
682 mtspr(bookehv_spr, val); \
685 #define SHARED_WRAPPER_GET(reg, size) \
686 static inline u##size kvmppc_get_##reg(struct kvm_vcpu *vcpu) \
688 if (kvmppc_shared_big_endian(vcpu)) \
689 return be##size##_to_cpu(vcpu->arch.shared->reg); \
691 return le##size##_to_cpu(vcpu->arch.shared->reg); \
694 #define SHARED_WRAPPER_SET(reg, size) \
695 static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, u##size val) \
697 if (kvmppc_shared_big_endian(vcpu)) \
698 vcpu->arch.shared->reg = cpu_to_be##size(val); \
700 vcpu->arch.shared->reg = cpu_to_le##size(val); \
703 #define SHARED_WRAPPER(reg, size) \
704 SHARED_WRAPPER_GET(reg, size) \
705 SHARED_WRAPPER_SET(reg, size) \
707 #define SPRNG_WRAPPER(reg, bookehv_spr) \
708 SPRNG_WRAPPER_GET(reg, bookehv_spr) \
709 SPRNG_WRAPPER_SET(reg, bookehv_spr) \
711 #ifdef CONFIG_KVM_BOOKE_HV
713 #define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \
714 SPRNG_WRAPPER(reg, bookehv_spr) \
718 #define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \
719 SHARED_WRAPPER(reg, size) \
723 SHARED_WRAPPER(critical
, 64)
724 SHARED_SPRNG_WRAPPER(sprg0
, 64, SPRN_GSPRG0
)
725 SHARED_SPRNG_WRAPPER(sprg1
, 64, SPRN_GSPRG1
)
726 SHARED_SPRNG_WRAPPER(sprg2
, 64, SPRN_GSPRG2
)
727 SHARED_SPRNG_WRAPPER(sprg3
, 64, SPRN_GSPRG3
)
728 SHARED_SPRNG_WRAPPER(srr0
, 64, SPRN_GSRR0
)
729 SHARED_SPRNG_WRAPPER(srr1
, 64, SPRN_GSRR1
)
730 SHARED_SPRNG_WRAPPER(dar
, 64, SPRN_GDEAR
)
731 SHARED_SPRNG_WRAPPER(esr
, 64, SPRN_GESR
)
732 SHARED_WRAPPER_GET(msr
, 64)
733 static inline void kvmppc_set_msr_fast(struct kvm_vcpu
*vcpu
, u64 val
)
735 if (kvmppc_shared_big_endian(vcpu
))
736 vcpu
->arch
.shared
->msr
= cpu_to_be64(val
);
738 vcpu
->arch
.shared
->msr
= cpu_to_le64(val
);
740 SHARED_WRAPPER(dsisr
, 32)
741 SHARED_WRAPPER(int_pending
, 32)
742 SHARED_WRAPPER(sprg4
, 64)
743 SHARED_WRAPPER(sprg5
, 64)
744 SHARED_WRAPPER(sprg6
, 64)
745 SHARED_WRAPPER(sprg7
, 64)
747 static inline u32
kvmppc_get_sr(struct kvm_vcpu
*vcpu
, int nr
)
749 if (kvmppc_shared_big_endian(vcpu
))
750 return be32_to_cpu(vcpu
->arch
.shared
->sr
[nr
]);
752 return le32_to_cpu(vcpu
->arch
.shared
->sr
[nr
]);
755 static inline void kvmppc_set_sr(struct kvm_vcpu
*vcpu
, int nr
, u32 val
)
757 if (kvmppc_shared_big_endian(vcpu
))
758 vcpu
->arch
.shared
->sr
[nr
] = cpu_to_be32(val
);
760 vcpu
->arch
.shared
->sr
[nr
] = cpu_to_le32(val
);
764 * Please call after prepare_to_enter. This function puts the lazy ee and irq
765 * disabled tracking state back to normal mode, without actually enabling
768 static inline void kvmppc_fix_ee_before_entry(void)
774 * To avoid races, the caller must have gone directly from having
775 * interrupts fully-enabled to hard-disabled.
777 WARN_ON(local_paca
->irq_happened
!= PACA_IRQ_HARD_DIS
);
779 /* Only need to enable IRQs by hard enabling them after this */
780 local_paca
->irq_happened
= 0;
781 local_paca
->soft_enabled
= 1;
785 static inline ulong
kvmppc_get_ea_indexed(struct kvm_vcpu
*vcpu
, int ra
, int rb
)
790 ea
= kvmppc_get_gpr(vcpu
, rb
);
792 ea
+= kvmppc_get_gpr(vcpu
, ra
);
794 #if defined(CONFIG_PPC_BOOK3E_64)
796 #elif defined(CONFIG_PPC_BOOK3S_64)
800 if (!(kvmppc_get_msr(vcpu
) & msr_64bit
))
806 extern void xics_wake_cpu(int cpu
);
808 #endif /* __POWERPC_KVM_PPC_H__ */