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KVM: PPC: Book3S HV: Convert kvmppc_read_intr to a C function
[mirror_ubuntu-zesty-kernel.git] / arch / powerpc / include / asm / kvm_ppc.h
CommitLineData
bbf45ba5
HB		 1/*
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.
5 *
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.
10 *
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.
14 *
15 * Copyright IBM Corp. 2008
16 *
17 * Authors: Hollis Blanchard <hollisb@us.ibm.com>
18 */
19
20#ifndef __POWERPC_KVM_PPC_H__
21#define __POWERPC_KVM_PPC_H__
22
23/* This file exists just so we can dereference kvm_vcpu, avoiding nested header
24 * dependencies. */
25
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>
a136a8bd 31#include <linux/bug.h>
1c0006d8
AG		 32#ifdef CONFIG_PPC_BOOK3S
33#include <asm/kvm_book3s.h>
c7f38f46
AG		 34#else
35#include <asm/kvm_booke.h>
1c0006d8 36#endif
371fefd6
PM		 37#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
38#include <asm/paca.h>
39#endif
bbf45ba5 40
a59c1d9e
MS		 41/*
42 * KVMPPC_INST_SW_BREAKPOINT is debug Instruction
43 * for supporting software breakpoint.
44 */
45#define KVMPPC_INST_SW_BREAKPOINT 0x00dddd00
46
bbf45ba5
HB		 47enum emulation_result {
48 EMULATE_DONE, /* no further processing */
49 EMULATE_DO_MMIO, /* kvm_run filled with MMIO request */
bbf45ba5 50 EMULATE_FAIL, /* can't emulate this instruction */
37f5bca6 51 EMULATE_AGAIN, /* something went wrong. go again */
c402a3f4 52 EMULATE_EXIT_USER, /* emulation requires exit to user-space */
bbf45ba5
HB		 53};
54
51f04726
MC		 55enum instruction_type {
56 INST_GENERIC,
57 INST_SC, /* system call */
58};
59
7d15c06f
AG		 60enum xlate_instdata {
61 XLATE_INST, /* translate instruction address */
62 XLATE_DATA /* translate data address */
63};
64
65enum xlate_readwrite {
66 XLATE_READ, /* check for read permissions */
67 XLATE_WRITE /* check for write permissions */
68};
69
df6909e5 70extern int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
bbf45ba5 71extern int __kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
29eb61bc 72extern void kvmppc_handler_highmem(void);
bbf45ba5
HB		 73
74extern void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu);
75extern int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
76 unsigned int rt, unsigned int bytes,
73601775 77 int is_default_endian);
3587d534
AG		 78extern int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu,
79 unsigned int rt, unsigned int bytes,
73601775 80 int is_default_endian);
bbf45ba5 81extern int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
73601775
CLG		 82 u64 val, unsigned int bytes,
83 int is_default_endian);
bbf45ba5 84
51f04726
MC		 85extern int kvmppc_load_last_inst(struct kvm_vcpu *vcpu,
86 enum instruction_type type, u32 *inst);
87
35c4a733
AG		 88extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
89 bool data);
90extern int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
91 bool data);
bbf45ba5
HB		 92extern int kvmppc_emulate_instruction(struct kvm_run *run,
93 struct kvm_vcpu *vcpu);
d69614a2 94extern int kvmppc_emulate_loadstore(struct kvm_vcpu *vcpu);
ce263d70 95extern int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu);
75f74f0d 96extern void kvmppc_emulate_dec(struct kvm_vcpu *vcpu);
5ce941ee 97extern u32 kvmppc_get_dec(struct kvm_vcpu *vcpu, u64 tb);
d02d4d15 98extern void kvmppc_decrementer_func(struct kvm_vcpu *vcpu);
af8f38b3 99extern int kvmppc_sanity_check(struct kvm_vcpu *vcpu);
f61c94bb
BB		 100extern int kvmppc_subarch_vcpu_init(struct kvm_vcpu *vcpu);
101extern void kvmppc_subarch_vcpu_uninit(struct kvm_vcpu *vcpu);
bbf45ba5 102
ecc0981f
HB		 103/* Core-specific hooks */
104
89168618 105extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr,
7924bd41 106 unsigned int gtlb_idx);
bbf45ba5 107extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode);
49dd2c49 108extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid);
ecc0981f 109extern void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu);
9cc5e953 110extern int kvmppc_mmu_init(struct kvm_vcpu *vcpu);
fa86b8dd
HB		 111extern int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
112extern int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
be8d1cae
HB		 113extern gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index,
114 gva_t eaddr);
b52a638c
HB		 115extern void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu);
116extern void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu);
7d15c06f
AG		 117extern int kvmppc_xlate(struct kvm_vcpu *vcpu, ulong eaddr,
118 enum xlate_instdata xlid, enum xlate_readwrite xlrw,
119 struct kvmppc_pte *pte);
9dd921cf 120
db93f574
HB		 121extern struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm,
122 unsigned int id);
123extern void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu);
5cbb5106 124extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu);
9dd921cf 125extern int kvmppc_core_check_processor_compat(void);
5cbb5106
HB		 126extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
127 struct kvm_translation *tr);
9dd921cf
HB		 128
129extern void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
130extern void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu);
131
a8e4ef84 132extern int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu);
9dd921cf 133extern int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu);
25a8a02d 134extern void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags);
9dd921cf 135extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu);
7706664d 136extern void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu);
9dd921cf
HB		 137extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,
138 struct kvm_interrupt *irq);
4fe27d2a 139extern void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu);
8de12015
AG		 140extern void kvmppc_core_queue_dtlb_miss(struct kvm_vcpu *vcpu, ulong dear_flags,
141 ulong esr_flags);
142extern void kvmppc_core_queue_data_storage(struct kvm_vcpu *vcpu,
143 ulong dear_flags,
144 ulong esr_flags);
145extern void kvmppc_core_queue_itlb_miss(struct kvm_vcpu *vcpu);
146extern void kvmppc_core_queue_inst_storage(struct kvm_vcpu *vcpu,
147 ulong esr_flags);
862d31f7 148extern void kvmppc_core_flush_tlb(struct kvm_vcpu *vcpu);
7c973a2e 149extern int kvmppc_core_check_requests(struct kvm_vcpu *vcpu);
75f74f0d 150
db93f574
HB		 151extern int kvmppc_booke_init(void);
152extern void kvmppc_booke_exit(void);
153
c30f8a6c 154extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu);
2a342ed5 155extern int kvmppc_kvm_pv(struct kvm_vcpu *vcpu);
a4cd8b23 156extern void kvmppc_map_magic(struct kvm_vcpu *vcpu);
c30f8a6c 157
32fad281
PM		 158extern long kvmppc_alloc_hpt(struct kvm *kvm, u32 *htab_orderp);
159extern long kvmppc_alloc_reset_hpt(struct kvm *kvm, u32 *htab_orderp);
de56a948
PM		 160extern void kvmppc_free_hpt(struct kvm *kvm);
161extern long kvmppc_prepare_vrma(struct kvm *kvm,
162 struct kvm_userspace_memory_region *mem);
c77162de 163extern void kvmppc_map_vrma(struct kvm_vcpu *vcpu,
da9d1d7f 164 struct kvm_memory_slot *memslot, unsigned long porder);
a8606e20 165extern int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu);
bc5ad3f3 166
54738c09 167extern long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm,
58ded420 168 struct kvm_create_spapr_tce_64 *args);
d3695aa4
AK		 169extern struct kvmppc_spapr_tce_table *kvmppc_find_table(
170 struct kvm_vcpu *vcpu, unsigned long liobn);
5ee7af18
AK		 171extern long kvmppc_ioba_validate(struct kvmppc_spapr_tce_table *stt,
172 unsigned long ioba, unsigned long npages);
173extern long kvmppc_tce_validate(struct kvmppc_spapr_tce_table *tt,
174 unsigned long tce);
d3695aa4
AK		 175extern long kvmppc_gpa_to_ua(struct kvm *kvm, unsigned long gpa,
176 unsigned long *ua, unsigned long **prmap);
177extern void kvmppc_tce_put(struct kvmppc_spapr_tce_table *tt,
178 unsigned long idx, unsigned long tce);
f31e65e1
BH		 179extern long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
180 unsigned long ioba, unsigned long tce);
d3695aa4
AK		 181extern 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);
184extern long kvmppc_h_stuff_tce(struct kvm_vcpu *vcpu,
185 unsigned long liobn, unsigned long ioba,
186 unsigned long tce_value, unsigned long npages);
69e9fbb2
LD		 187extern long kvmppc_h_get_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
188 unsigned long ioba);
fa61a4e3
AK		 189extern struct page *kvm_alloc_hpt(unsigned long nr_pages);
190extern void kvm_release_hpt(struct page *page, unsigned long nr_pages);
f9e0554d
PM		 191extern int kvmppc_core_init_vm(struct kvm *kvm);
192extern void kvmppc_core_destroy_vm(struct kvm *kvm);
5587027c
AK		 193extern void kvmppc_core_free_memslot(struct kvm *kvm,
194 struct kvm_memory_slot *free,
a66b48c3 195 struct kvm_memory_slot *dont);
5587027c
AK		 196extern int kvmppc_core_create_memslot(struct kvm *kvm,
197 struct kvm_memory_slot *slot,
a66b48c3 198 unsigned long npages);
f9e0554d 199extern int kvmppc_core_prepare_memory_region(struct kvm *kvm,
a66b48c3 200 struct kvm_memory_slot *memslot,
09170a49 201 const struct kvm_userspace_memory_region *mem);
f9e0554d 202extern void kvmppc_core_commit_memory_region(struct kvm *kvm,
09170a49 203 const struct kvm_userspace_memory_region *mem,
f36f3f28
PB		 204 const struct kvm_memory_slot *old,
205 const struct kvm_memory_slot *new);
5b74716e
BH		 206extern int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm,
207 struct kvm_ppc_smmu_info *info);
dfe49dbd
PM		 208extern void kvmppc_core_flush_memslot(struct kvm *kvm,
209 struct kvm_memory_slot *memslot);
f9e0554d 210
d30f6e48
SW		 211extern int kvmppc_bookehv_init(void);
212extern void kvmppc_bookehv_exit(void);
213
03d25c5b
AG		 214extern int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu);
215
a2932923
PM		 216extern int kvm_vm_ioctl_get_htab_fd(struct kvm *kvm, struct kvm_get_htab_fd *);
217
5df554ad
SW		 218int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq);
219
8e591cb7
ME		 220extern int kvm_vm_ioctl_rtas_define_token(struct kvm *kvm, void __user *argp);
221extern int kvmppc_rtas_hcall(struct kvm_vcpu *vcpu);
222extern void kvmppc_rtas_tokens_free(struct kvm *kvm);
bc5ad3f3
BH		 223extern int kvmppc_xics_set_xive(struct kvm *kvm, u32 irq, u32 server,
224 u32 priority);
225extern int kvmppc_xics_get_xive(struct kvm *kvm, u32 irq, u32 *server,
226 u32 *priority);
d19bd862
PM		 227extern int kvmppc_xics_int_on(struct kvm *kvm, u32 irq);
228extern int kvmppc_xics_int_off(struct kvm *kvm, u32 irq);
8e591cb7 229
2f699a59
BB		 230void kvmppc_core_dequeue_debug(struct kvm_vcpu *vcpu);
231void kvmppc_core_queue_debug(struct kvm_vcpu *vcpu);
232
3a167bea
AK		 233union kvmppc_one_reg {
234 u32 wval;
235 u64 dval;
236 vector128 vval;
237 u64 vsxval[2];
238 struct {
239 u64 addr;
240 u64 length;
241 } vpaval;
242};
243
244struct kvmppc_ops {
cbbc58d4 245 struct module *owner;
3a167bea
AK		 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,
09170a49 263 const struct kvm_userspace_memory_region *mem);
3a167bea 264 void (*commit_memory_region)(struct kvm *kvm,
09170a49 265 const struct kvm_userspace_memory_region *mem,
f36f3f28
PB		 266 const struct kvm_memory_slot *old,
267 const struct kvm_memory_slot *new);
3a167bea
AK		 268 int (*unmap_hva)(struct kvm *kvm, unsigned long hva);
269 int (*unmap_hva_range)(struct kvm *kvm, unsigned long start,
270 unsigned long end);
57128468 271 int (*age_hva)(struct kvm *kvm, unsigned long start, unsigned long end);
3a167bea
AK		 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);
3a167bea
AK		 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,
288 unsigned long arg);
ae2113a4 289 int (*hcall_implemented)(unsigned long hcall);
3a167bea
AK		 290};
291
cbbc58d4
AK		 292extern struct kvmppc_ops *kvmppc_hv_ops;
293extern struct kvmppc_ops *kvmppc_pr_ops;
3a167bea 294
51f04726
MC		 295static inline int kvmppc_get_last_inst(struct kvm_vcpu *vcpu,
296 enum instruction_type type, u32 *inst)
297{
298 int ret = EMULATE_DONE;
299 u32 fetched_inst;
300
301 /* Load the instruction manually if it failed to do so in the
302 * exit path */
303 if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
304 ret = kvmppc_load_last_inst(vcpu, type, &vcpu->arch.last_inst);
305
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;
311 else
312 fetched_inst = vcpu->arch.last_inst;
313
314 *inst = fetched_inst;
315 return ret;
316}
317
a78b55d1
AK		 318static inline bool is_kvmppc_hv_enabled(struct kvm *kvm)
319{
320 return kvm->arch.kvm_ops == kvmppc_hv_ops;
321}
322
e928e9cb
ME		 323extern int kvmppc_hwrng_present(void);
324
0564ee8a
AG		 325/*
326 * Cuts out inst bits with ordering according to spec.
327 * That means the leftmost bit is zero. All given bits are included.
328 */
329static inline u32 kvmppc_get_field(u64 inst, int msb, int lsb)
330{
331 u32 r;
332 u32 mask;
333
334 BUG_ON(msb > lsb);
335
336 mask = (1 << (lsb - msb + 1)) - 1;
337 r = (inst >> (63 - lsb)) & mask;
338
339 return r;
340}
341
342/*
343 * Replaces inst bits with ordering according to spec.
344 */
345static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value)
346{
347 u32 r;
348 u32 mask;
349
350 BUG_ON(msb > lsb);
351
352 mask = ((1 << (lsb - msb + 1)) - 1) << (63 - lsb);
353 r = (inst & ~mask) | ((value << (63 - lsb)) & mask);
354
355 return r;
356}
357
a136a8bd
PM		 358#define one_reg_size(id) \
359 (1ul << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
360
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; \
366 default: BUG(); \
367 } \
368 __u; \
369})
370
371
372#define set_reg_val(id, val) ({ \
373 u64 __v; \
374 switch (one_reg_size(id)) { \
375 case 4: __v = (val).wval; break; \
376 case 8: __v = (val).dval; break; \
377 default: BUG(); \
378 } \
379 __v; \
380})
381
3a167bea 382int kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
5ce941ee
SW		 383int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
384
3a167bea 385int kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
5ce941ee
SW		 386int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
387
31f3438e
PM		 388int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
389int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
a136a8bd
PM		 390int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
391int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
31f3438e 392
5ce941ee
SW		 393void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid);
394
5df554ad 395struct openpic;
5df554ad 396
9975f5e3 397#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
fa61a4e3 398extern void kvm_cma_reserve(void) __init;
371fefd6
PM		 399static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
400{
401 paca[cpu].kvm_hstate.xics_phys = addr;
402}
aa04b4cc 403
54695c30
BH		 404static inline u32 kvmppc_get_xics_latch(void)
405{
699cc876 406 u32 xirr;
54695c30 407
699cc876 408 xirr = get_paca()->kvm_hstate.saved_xirr;
54695c30 409 get_paca()->kvm_hstate.saved_xirr = 0;
54695c30
BH		 410 return xirr;
411}
412
413static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi)
414{
415 paca[cpu].kvm_hstate.host_ipi = host_ipi;
416}
417
3a167bea
AK		 418static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
419{
cbbc58d4 420 vcpu->kvm->arch.kvm_ops->fast_vcpu_kick(vcpu);
3a167bea 421}
aa04b4cc 422
441c19c8
ME		 423extern void kvm_hv_vm_activated(void);
424extern void kvm_hv_vm_deactivated(void);
425extern bool kvm_hv_mode_active(void);
426
371fefd6 427#else
fa61a4e3
AK		 428static inline void __init kvm_cma_reserve(void)
429{}
430
371fefd6
PM		 431static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
432{}
aa04b4cc 433
54695c30
BH		 434static inline u32 kvmppc_get_xics_latch(void)
435{
436 return 0;
437}
438
439static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi)
440{}
441
442static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
443{
444 kvm_vcpu_kick(vcpu);
445}
441c19c8
ME		 446
447static inline bool kvm_hv_mode_active(void) { return false; }
448
bc5ad3f3
BH		 449#endif
450
451#ifdef CONFIG_KVM_XICS
452static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu)
453{
454 return vcpu->arch.irq_type == KVMPPC_IRQ_XICS;
455}
79b6c247
SW		 456extern void kvmppc_alloc_host_rm_ops(void);
457extern void kvmppc_free_host_rm_ops(void);
bc5ad3f3
BH		 458extern void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu);
459extern int kvmppc_xics_create_icp(struct kvm_vcpu *vcpu, unsigned long server);
460extern int kvm_vm_ioctl_xics_irq(struct kvm *kvm, struct kvm_irq_level *args);
461extern int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd);
8b78645c
PM		 462extern u64 kvmppc_xics_get_icp(struct kvm_vcpu *vcpu);
463extern int kvmppc_xics_set_icp(struct kvm_vcpu *vcpu, u64 icpval);
5975a2e0
PM		 464extern int kvmppc_xics_connect_vcpu(struct kvm_device *dev,
465 struct kvm_vcpu *vcpu, u32 cpu);
0c2a6606 466extern void kvmppc_xics_ipi_action(void);
520fe9c6 467extern int h_ipi_redirect;
bc5ad3f3 468#else
79b6c247
SW		 469static inline void kvmppc_alloc_host_rm_ops(void) {};
470static inline void kvmppc_free_host_rm_ops(void) {};
bc5ad3f3
BH		 471static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu)
472 { return 0; }
473static inline void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu) { }
474static inline int kvmppc_xics_create_icp(struct kvm_vcpu *vcpu,
475 unsigned long server)
476 { return -EINVAL; }
477static inline int kvm_vm_ioctl_xics_irq(struct kvm *kvm,
478 struct kvm_irq_level *args)
479 { return -ENOTTY; }
480static inline int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd)
481 { return 0; }
371fefd6
PM		 482#endif
483
79b6c247
SW		 484/*
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.
488 */
489
490union kvmppc_rm_state {
491 unsigned long raw;
492 struct {
493 u32 in_host;
494 u32 rm_action;
495 };
496};
497
498struct kvmppc_host_rm_core {
499 union kvmppc_rm_state rm_state;
500 void *rm_data;
501 char pad[112];
502};
503
504struct kvmppc_host_rm_ops {
505 struct kvmppc_host_rm_core *rm_core;
506 void (*vcpu_kick)(struct kvm_vcpu *vcpu);
507};
508
509extern struct kvmppc_host_rm_ops *kvmppc_host_rm_ops_hv;
510
34f754b9
BB		 511static inline unsigned long kvmppc_get_epr(struct kvm_vcpu *vcpu)
512{
513#ifdef CONFIG_KVM_BOOKE_HV
514 return mfspr(SPRN_GEPR);
515#elif defined(CONFIG_BOOKE)
516 return vcpu->arch.epr;
517#else
518 return 0;
519#endif
520}
521
1c810636
AG		 522static inline void kvmppc_set_epr(struct kvm_vcpu *vcpu, u32 epr)
523{
524#ifdef CONFIG_KVM_BOOKE_HV
525 mtspr(SPRN_GEPR, epr);
526#elif defined(CONFIG_BOOKE)
527 vcpu->arch.epr = epr;
528#endif
529}
530
5df554ad
SW		 531#ifdef CONFIG_KVM_MPIC
532
533void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu);
eb1e4f43
SW		 534int kvmppc_mpic_connect_vcpu(struct kvm_device *dev, struct kvm_vcpu *vcpu,
535 u32 cpu);
536void kvmppc_mpic_disconnect_vcpu(struct openpic *opp, struct kvm_vcpu *vcpu);
5df554ad
SW		 537
538#else
539
540static inline void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu)
541{
542}
543
eb1e4f43
SW		 544static inline int kvmppc_mpic_connect_vcpu(struct kvm_device *dev,
545 struct kvm_vcpu *vcpu, u32 cpu)
546{
547 return -EINVAL;
548}
549
550static inline void kvmppc_mpic_disconnect_vcpu(struct openpic *opp,
551 struct kvm_vcpu *vcpu)
552{
553}
554
5df554ad
SW		 555#endif /* CONFIG_KVM_MPIC */
556
dc83b8bc
SW		 557int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu,
558 struct kvm_config_tlb *cfg);
559int kvm_vcpu_ioctl_dirty_tlb(struct kvm_vcpu *vcpu,
560 struct kvm_dirty_tlb *cfg);
561
043cc4d7
SW		 562long kvmppc_alloc_lpid(void);
563void kvmppc_claim_lpid(long lpid);
564void kvmppc_free_lpid(long lpid);
565void kvmppc_init_lpid(unsigned long nr_lpids);
566
ba049e93 567static inline void kvmppc_mmu_flush_icache(kvm_pfn_t pfn)
249ba1ee 568{
249ba1ee 569 struct page *page;
adccf65c
BB		 570 /*
571 * We can only access pages that the kernel maps
572 * as memory. Bail out for unmapped ones.
573 */
574 if (!pfn_valid(pfn))
575 return;
576
577 /* Clear i-cache for new pages */
249ba1ee
AG		 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);
582 }
583}
584
5deb8e7a
AG		 585/*
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.
588 */
589static inline bool kvmppc_shared_big_endian(struct kvm_vcpu *vcpu)
590{
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 */
596 return false;
597#else
598 return true;
599#endif
600}
601
5a484c7c 602#define SPRNG_WRAPPER_GET(reg, bookehv_spr) \
1dc0c5b8
BB		 603static inline ulong kvmppc_get_##reg(struct kvm_vcpu *vcpu) \
604{ \
5a484c7c 605 return mfspr(bookehv_spr); \
1dc0c5b8
BB		 606} \
607
5a484c7c 608#define SPRNG_WRAPPER_SET(reg, bookehv_spr) \
1dc0c5b8
BB		 609static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, ulong val) \
610{ \
5a484c7c 611 mtspr(bookehv_spr, val); \
1dc0c5b8
BB		 612} \
613
5deb8e7a 614#define SHARED_WRAPPER_GET(reg, size) \
1dc0c5b8 615static inline u##size kvmppc_get_##reg(struct kvm_vcpu *vcpu) \
5deb8e7a
AG		 616{ \
617 if (kvmppc_shared_big_endian(vcpu)) \
618 return be##size##_to_cpu(vcpu->arch.shared->reg); \
619 else \
620 return le##size##_to_cpu(vcpu->arch.shared->reg); \
621} \
622
623#define SHARED_WRAPPER_SET(reg, size) \
624static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, u##size val) \
625{ \
626 if (kvmppc_shared_big_endian(vcpu)) \
627 vcpu->arch.shared->reg = cpu_to_be##size(val); \
628 else \
629 vcpu->arch.shared->reg = cpu_to_le##size(val); \
630} \
631
632#define SHARED_WRAPPER(reg, size) \
633 SHARED_WRAPPER_GET(reg, size) \
634 SHARED_WRAPPER_SET(reg, size) \
635
5a484c7c
BB		 636#define SPRNG_WRAPPER(reg, bookehv_spr) \
637 SPRNG_WRAPPER_GET(reg, bookehv_spr) \
638 SPRNG_WRAPPER_SET(reg, bookehv_spr) \
1dc0c5b8
BB		 639
640#ifdef CONFIG_KVM_BOOKE_HV
641
5a484c7c
BB		 642#define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \
643 SPRNG_WRAPPER(reg, bookehv_spr) \
1dc0c5b8
BB		 644
645#else
646
5a484c7c 647#define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \
1dc0c5b8
BB		 648 SHARED_WRAPPER(reg, size) \
649
650#endif
651
5deb8e7a 652SHARED_WRAPPER(critical, 64)
1dc0c5b8
BB		 653SHARED_SPRNG_WRAPPER(sprg0, 64, SPRN_GSPRG0)
654SHARED_SPRNG_WRAPPER(sprg1, 64, SPRN_GSPRG1)
655SHARED_SPRNG_WRAPPER(sprg2, 64, SPRN_GSPRG2)
656SHARED_SPRNG_WRAPPER(sprg3, 64, SPRN_GSPRG3)
657SHARED_SPRNG_WRAPPER(srr0, 64, SPRN_GSRR0)
658SHARED_SPRNG_WRAPPER(srr1, 64, SPRN_GSRR1)
659SHARED_SPRNG_WRAPPER(dar, 64, SPRN_GDEAR)
dc168549 660SHARED_SPRNG_WRAPPER(esr, 64, SPRN_GESR)
5deb8e7a
AG		 661SHARED_WRAPPER_GET(msr, 64)
662static inline void kvmppc_set_msr_fast(struct kvm_vcpu *vcpu, u64 val)
663{
664 if (kvmppc_shared_big_endian(vcpu))
665 vcpu->arch.shared->msr = cpu_to_be64(val);
666 else
667 vcpu->arch.shared->msr = cpu_to_le64(val);
668}
669SHARED_WRAPPER(dsisr, 32)
670SHARED_WRAPPER(int_pending, 32)
671SHARED_WRAPPER(sprg4, 64)
672SHARED_WRAPPER(sprg5, 64)
673SHARED_WRAPPER(sprg6, 64)
674SHARED_WRAPPER(sprg7, 64)
675
676static inline u32 kvmppc_get_sr(struct kvm_vcpu *vcpu, int nr)
677{
678 if (kvmppc_shared_big_endian(vcpu))
679 return be32_to_cpu(vcpu->arch.shared->sr[nr]);
680 else
681 return le32_to_cpu(vcpu->arch.shared->sr[nr]);
682}
683
684static inline void kvmppc_set_sr(struct kvm_vcpu *vcpu, int nr, u32 val)
685{
686 if (kvmppc_shared_big_endian(vcpu))
687 vcpu->arch.shared->sr[nr] = cpu_to_be32(val);
688 else
689 vcpu->arch.shared->sr[nr] = cpu_to_le32(val);
690}
691
5f1c248f
SW		 692/*
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
695 * interrupts.
696 */
697static inline void kvmppc_fix_ee_before_entry(void)
bd2be683 698{
5f1c248f
SW		 699 trace_hardirqs_on();
700
bd2be683 701#ifdef CONFIG_PPC64
6c85f52b
SW		 702 /*
703 * To avoid races, the caller must have gone directly from having
704 * interrupts fully-enabled to hard-disabled.
705 */
706 WARN_ON(local_paca->irq_happened != PACA_IRQ_HARD_DIS);
707
bd2be683
AG		 708 /* Only need to enable IRQs by hard enabling them after this */
709 local_paca->irq_happened = 0;
710 local_paca->soft_enabled = 1;
711#endif
712}
249ba1ee 713
7cdd7a95
MC		 714static inline ulong kvmppc_get_ea_indexed(struct kvm_vcpu *vcpu, int ra, int rb)
715{
716 ulong ea;
8823a8fd 717 ulong msr_64bit = 0;
7cdd7a95
MC		 718
719 ea = kvmppc_get_gpr(vcpu, rb);
720 if (ra)
721 ea += kvmppc_get_gpr(vcpu, ra);
722
8823a8fd
MC		 723#if defined(CONFIG_PPC_BOOK3E_64)
724 msr_64bit = MSR_CM;
725#elif defined(CONFIG_PPC_BOOK3S_64)
726 msr_64bit = MSR_SF;
727#endif
728
5deb8e7a 729 if (!(kvmppc_get_msr(vcpu) & msr_64bit))
8823a8fd
MC		 730 ea = (uint32_t)ea;
731
7cdd7a95
MC		 732 return ea;
733}
734
54695c30
BH		 735extern void xics_wake_cpu(int cpu);
736
bbf45ba5 737#endif /* __POWERPC_KVM_PPC_H__ */
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