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KVM: use kvm_memslots whenever possible
[mirror_ubuntu-bionic-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
DG		 167extern long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm,
168 struct kvm_create_spapr_tce *args);
f31e65e1
BH		 169extern long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
170 unsigned long ioba, unsigned long tce);
69e9fbb2
LD		 171extern long kvmppc_h_get_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
172 unsigned long ioba);
fa61a4e3
AK		 173extern struct page *kvm_alloc_hpt(unsigned long nr_pages);
174extern void kvm_release_hpt(struct page *page, unsigned long nr_pages);
f9e0554d
PM		 175extern int kvmppc_core_init_vm(struct kvm *kvm);
176extern void kvmppc_core_destroy_vm(struct kvm *kvm);
5587027c
AK		 177extern void kvmppc_core_free_memslot(struct kvm *kvm,
178 struct kvm_memory_slot *free,
a66b48c3 179 struct kvm_memory_slot *dont);
5587027c
AK		 180extern int kvmppc_core_create_memslot(struct kvm *kvm,
181 struct kvm_memory_slot *slot,
a66b48c3 182 unsigned long npages);
f9e0554d 183extern int kvmppc_core_prepare_memory_region(struct kvm *kvm,
a66b48c3 184 struct kvm_memory_slot *memslot,
f9e0554d
PM		 185 struct kvm_userspace_memory_region *mem);
186extern void kvmppc_core_commit_memory_region(struct kvm *kvm,
dfe49dbd 187 struct kvm_userspace_memory_region *mem,
8482644a 188 const struct kvm_memory_slot *old);
5b74716e
BH		 189extern int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm,
190 struct kvm_ppc_smmu_info *info);
dfe49dbd
PM		 191extern void kvmppc_core_flush_memslot(struct kvm *kvm,
192 struct kvm_memory_slot *memslot);
f9e0554d 193
d30f6e48
SW		 194extern int kvmppc_bookehv_init(void);
195extern void kvmppc_bookehv_exit(void);
196
03d25c5b
AG		 197extern int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu);
198
a2932923
PM		 199extern int kvm_vm_ioctl_get_htab_fd(struct kvm *kvm, struct kvm_get_htab_fd *);
200
5df554ad
SW		 201int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq);
202
8e591cb7
ME		 203extern int kvm_vm_ioctl_rtas_define_token(struct kvm *kvm, void __user *argp);
204extern int kvmppc_rtas_hcall(struct kvm_vcpu *vcpu);
205extern void kvmppc_rtas_tokens_free(struct kvm *kvm);
bc5ad3f3
BH		 206extern int kvmppc_xics_set_xive(struct kvm *kvm, u32 irq, u32 server,
207 u32 priority);
208extern int kvmppc_xics_get_xive(struct kvm *kvm, u32 irq, u32 *server,
209 u32 *priority);
d19bd862
PM		 210extern int kvmppc_xics_int_on(struct kvm *kvm, u32 irq);
211extern int kvmppc_xics_int_off(struct kvm *kvm, u32 irq);
8e591cb7 212
2f699a59
BB		 213void kvmppc_core_dequeue_debug(struct kvm_vcpu *vcpu);
214void kvmppc_core_queue_debug(struct kvm_vcpu *vcpu);
215
3a167bea
AK		 216union kvmppc_one_reg {
217 u32 wval;
218 u64 dval;
219 vector128 vval;
220 u64 vsxval[2];
221 struct {
222 u64 addr;
223 u64 length;
224 } vpaval;
225};
226
227struct kvmppc_ops {
cbbc58d4 228 struct module *owner;
3a167bea
AK		 229 int (*get_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
230 int (*set_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
231 int (*get_one_reg)(struct kvm_vcpu *vcpu, u64 id,
232 union kvmppc_one_reg *val);
233 int (*set_one_reg)(struct kvm_vcpu *vcpu, u64 id,
234 union kvmppc_one_reg *val);
235 void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
236 void (*vcpu_put)(struct kvm_vcpu *vcpu);
237 void (*set_msr)(struct kvm_vcpu *vcpu, u64 msr);
238 int (*vcpu_run)(struct kvm_run *run, struct kvm_vcpu *vcpu);
239 struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned int id);
240 void (*vcpu_free)(struct kvm_vcpu *vcpu);
241 int (*check_requests)(struct kvm_vcpu *vcpu);
242 int (*get_dirty_log)(struct kvm *kvm, struct kvm_dirty_log *log);
243 void (*flush_memslot)(struct kvm *kvm, struct kvm_memory_slot *memslot);
244 int (*prepare_memory_region)(struct kvm *kvm,
245 struct kvm_memory_slot *memslot,
246 struct kvm_userspace_memory_region *mem);
247 void (*commit_memory_region)(struct kvm *kvm,
248 struct kvm_userspace_memory_region *mem,
249 const struct kvm_memory_slot *old);
250 int (*unmap_hva)(struct kvm *kvm, unsigned long hva);
251 int (*unmap_hva_range)(struct kvm *kvm, unsigned long start,
252 unsigned long end);
57128468 253 int (*age_hva)(struct kvm *kvm, unsigned long start, unsigned long end);
3a167bea
AK		 254 int (*test_age_hva)(struct kvm *kvm, unsigned long hva);
255 void (*set_spte_hva)(struct kvm *kvm, unsigned long hva, pte_t pte);
256 void (*mmu_destroy)(struct kvm_vcpu *vcpu);
257 void (*free_memslot)(struct kvm_memory_slot *free,
258 struct kvm_memory_slot *dont);
259 int (*create_memslot)(struct kvm_memory_slot *slot,
260 unsigned long npages);
261 int (*init_vm)(struct kvm *kvm);
262 void (*destroy_vm)(struct kvm *kvm);
3a167bea
AK		 263 int (*get_smmu_info)(struct kvm *kvm, struct kvm_ppc_smmu_info *info);
264 int (*emulate_op)(struct kvm_run *run, struct kvm_vcpu *vcpu,
265 unsigned int inst, int *advance);
266 int (*emulate_mtspr)(struct kvm_vcpu *vcpu, int sprn, ulong spr_val);
267 int (*emulate_mfspr)(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val);
268 void (*fast_vcpu_kick)(struct kvm_vcpu *vcpu);
269 long (*arch_vm_ioctl)(struct file *filp, unsigned int ioctl,
270 unsigned long arg);
ae2113a4 271 int (*hcall_implemented)(unsigned long hcall);
3a167bea
AK		 272};
273
cbbc58d4
AK		 274extern struct kvmppc_ops *kvmppc_hv_ops;
275extern struct kvmppc_ops *kvmppc_pr_ops;
3a167bea 276
51f04726
MC		 277static inline int kvmppc_get_last_inst(struct kvm_vcpu *vcpu,
278 enum instruction_type type, u32 *inst)
279{
280 int ret = EMULATE_DONE;
281 u32 fetched_inst;
282
283 /* Load the instruction manually if it failed to do so in the
284 * exit path */
285 if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
286 ret = kvmppc_load_last_inst(vcpu, type, &vcpu->arch.last_inst);
287
288 /* Write fetch_failed unswapped if the fetch failed */
289 if (ret == EMULATE_DONE)
290 fetched_inst = kvmppc_need_byteswap(vcpu) ?
291 swab32(vcpu->arch.last_inst) :
292 vcpu->arch.last_inst;
293 else
294 fetched_inst = vcpu->arch.last_inst;
295
296 *inst = fetched_inst;
297 return ret;
298}
299
a78b55d1
AK		 300static inline bool is_kvmppc_hv_enabled(struct kvm *kvm)
301{
302 return kvm->arch.kvm_ops == kvmppc_hv_ops;
303}
304
e928e9cb
ME		 305extern int kvmppc_hwrng_present(void);
306
0564ee8a
AG		 307/*
308 * Cuts out inst bits with ordering according to spec.
309 * That means the leftmost bit is zero. All given bits are included.
310 */
311static inline u32 kvmppc_get_field(u64 inst, int msb, int lsb)
312{
313 u32 r;
314 u32 mask;
315
316 BUG_ON(msb > lsb);
317
318 mask = (1 << (lsb - msb + 1)) - 1;
319 r = (inst >> (63 - lsb)) & mask;
320
321 return r;
322}
323
324/*
325 * Replaces inst bits with ordering according to spec.
326 */
327static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value)
328{
329 u32 r;
330 u32 mask;
331
332 BUG_ON(msb > lsb);
333
334 mask = ((1 << (lsb - msb + 1)) - 1) << (63 - lsb);
335 r = (inst & ~mask) | ((value << (63 - lsb)) & mask);
336
337 return r;
338}
339
a136a8bd
PM		 340#define one_reg_size(id) \
341 (1ul << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
342
343#define get_reg_val(id, reg) ({ \
344 union kvmppc_one_reg __u; \
345 switch (one_reg_size(id)) { \
346 case 4: __u.wval = (reg); break; \
347 case 8: __u.dval = (reg); break; \
348 default: BUG(); \
349 } \
350 __u; \
351})
352
353
354#define set_reg_val(id, val) ({ \
355 u64 __v; \
356 switch (one_reg_size(id)) { \
357 case 4: __v = (val).wval; break; \
358 case 8: __v = (val).dval; break; \
359 default: BUG(); \
360 } \
361 __v; \
362})
363
3a167bea 364int kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
5ce941ee
SW		 365int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
366
3a167bea 367int kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
5ce941ee
SW		 368int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
369
31f3438e
PM		 370int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
371int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
a136a8bd
PM		 372int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
373int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
31f3438e 374
5ce941ee
SW		 375void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid);
376
5df554ad 377struct openpic;
5df554ad 378
9975f5e3 379#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
fa61a4e3 380extern void kvm_cma_reserve(void) __init;
371fefd6
PM		 381static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
382{
383 paca[cpu].kvm_hstate.xics_phys = addr;
384}
aa04b4cc 385
54695c30
BH		 386static inline u32 kvmppc_get_xics_latch(void)
387{
699cc876 388 u32 xirr;
54695c30 389
699cc876 390 xirr = get_paca()->kvm_hstate.saved_xirr;
54695c30 391 get_paca()->kvm_hstate.saved_xirr = 0;
54695c30
BH		 392 return xirr;
393}
394
395static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi)
396{
397 paca[cpu].kvm_hstate.host_ipi = host_ipi;
398}
399
3a167bea
AK		 400static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
401{
cbbc58d4 402 vcpu->kvm->arch.kvm_ops->fast_vcpu_kick(vcpu);
3a167bea 403}
aa04b4cc 404
441c19c8
ME		 405extern void kvm_hv_vm_activated(void);
406extern void kvm_hv_vm_deactivated(void);
407extern bool kvm_hv_mode_active(void);
408
371fefd6 409#else
fa61a4e3
AK		 410static inline void __init kvm_cma_reserve(void)
411{}
412
371fefd6
PM		 413static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
414{}
aa04b4cc 415
54695c30
BH		 416static inline u32 kvmppc_get_xics_latch(void)
417{
418 return 0;
419}
420
421static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi)
422{}
423
424static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
425{
426 kvm_vcpu_kick(vcpu);
427}
441c19c8
ME		 428
429static inline bool kvm_hv_mode_active(void) { return false; }
430
bc5ad3f3
BH		 431#endif
432
433#ifdef CONFIG_KVM_XICS
434static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu)
435{
436 return vcpu->arch.irq_type == KVMPPC_IRQ_XICS;
437}
438extern void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu);
439extern int kvmppc_xics_create_icp(struct kvm_vcpu *vcpu, unsigned long server);
440extern int kvm_vm_ioctl_xics_irq(struct kvm *kvm, struct kvm_irq_level *args);
441extern int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd);
8b78645c
PM		 442extern u64 kvmppc_xics_get_icp(struct kvm_vcpu *vcpu);
443extern int kvmppc_xics_set_icp(struct kvm_vcpu *vcpu, u64 icpval);
5975a2e0
PM		 444extern int kvmppc_xics_connect_vcpu(struct kvm_device *dev,
445 struct kvm_vcpu *vcpu, u32 cpu);
bc5ad3f3
BH		 446#else
447static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu)
448 { return 0; }
449static inline void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu) { }
450static inline int kvmppc_xics_create_icp(struct kvm_vcpu *vcpu,
451 unsigned long server)
452 { return -EINVAL; }
453static inline int kvm_vm_ioctl_xics_irq(struct kvm *kvm,
454 struct kvm_irq_level *args)
455 { return -ENOTTY; }
456static inline int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd)
457 { return 0; }
371fefd6
PM		 458#endif
459
34f754b9
BB		 460static inline unsigned long kvmppc_get_epr(struct kvm_vcpu *vcpu)
461{
462#ifdef CONFIG_KVM_BOOKE_HV
463 return mfspr(SPRN_GEPR);
464#elif defined(CONFIG_BOOKE)
465 return vcpu->arch.epr;
466#else
467 return 0;
468#endif
469}
470
1c810636
AG		 471static inline void kvmppc_set_epr(struct kvm_vcpu *vcpu, u32 epr)
472{
473#ifdef CONFIG_KVM_BOOKE_HV
474 mtspr(SPRN_GEPR, epr);
475#elif defined(CONFIG_BOOKE)
476 vcpu->arch.epr = epr;
477#endif
478}
479
5df554ad
SW		 480#ifdef CONFIG_KVM_MPIC
481
482void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu);
eb1e4f43
SW		 483int kvmppc_mpic_connect_vcpu(struct kvm_device *dev, struct kvm_vcpu *vcpu,
484 u32 cpu);
485void kvmppc_mpic_disconnect_vcpu(struct openpic *opp, struct kvm_vcpu *vcpu);
5df554ad
SW		 486
487#else
488
489static inline void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu)
490{
491}
492
eb1e4f43
SW		 493static inline int kvmppc_mpic_connect_vcpu(struct kvm_device *dev,
494 struct kvm_vcpu *vcpu, u32 cpu)
495{
496 return -EINVAL;
497}
498
499static inline void kvmppc_mpic_disconnect_vcpu(struct openpic *opp,
500 struct kvm_vcpu *vcpu)
501{
502}
503
5df554ad
SW		 504#endif /* CONFIG_KVM_MPIC */
505
dc83b8bc
SW		 506int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu,
507 struct kvm_config_tlb *cfg);
508int kvm_vcpu_ioctl_dirty_tlb(struct kvm_vcpu *vcpu,
509 struct kvm_dirty_tlb *cfg);
510
043cc4d7
SW		 511long kvmppc_alloc_lpid(void);
512void kvmppc_claim_lpid(long lpid);
513void kvmppc_free_lpid(long lpid);
514void kvmppc_init_lpid(unsigned long nr_lpids);
515
249ba1ee
AG		 516static inline void kvmppc_mmu_flush_icache(pfn_t pfn)
517{
249ba1ee 518 struct page *page;
adccf65c
BB		 519 /*
520 * We can only access pages that the kernel maps
521 * as memory. Bail out for unmapped ones.
522 */
523 if (!pfn_valid(pfn))
524 return;
525
526 /* Clear i-cache for new pages */
249ba1ee
AG		 527 page = pfn_to_page(pfn);
528 if (!test_bit(PG_arch_1, &page->flags)) {
529 flush_dcache_icache_page(page);
530 set_bit(PG_arch_1, &page->flags);
531 }
532}
533
5deb8e7a
AG		 534/*
535 * Shared struct helpers. The shared struct can be little or big endian,
536 * depending on the guest endianness. So expose helpers to all of them.
537 */
538static inline bool kvmppc_shared_big_endian(struct kvm_vcpu *vcpu)
539{
540#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
541 /* Only Book3S_64 PR supports bi-endian for now */
542 return vcpu->arch.shared_big_endian;
543#elif defined(CONFIG_PPC_BOOK3S_64) && defined(__LITTLE_ENDIAN__)
544 /* Book3s_64 HV on little endian is always little endian */
545 return false;
546#else
547 return true;
548#endif
549}
550
5a484c7c 551#define SPRNG_WRAPPER_GET(reg, bookehv_spr) \
1dc0c5b8
BB		 552static inline ulong kvmppc_get_##reg(struct kvm_vcpu *vcpu) \
553{ \
5a484c7c 554 return mfspr(bookehv_spr); \
1dc0c5b8
BB		 555} \
556
5a484c7c 557#define SPRNG_WRAPPER_SET(reg, bookehv_spr) \
1dc0c5b8
BB		 558static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, ulong val) \
559{ \
5a484c7c 560 mtspr(bookehv_spr, val); \
1dc0c5b8
BB		 561} \
562
5deb8e7a 563#define SHARED_WRAPPER_GET(reg, size) \
1dc0c5b8 564static inline u##size kvmppc_get_##reg(struct kvm_vcpu *vcpu) \
5deb8e7a
AG		 565{ \
566 if (kvmppc_shared_big_endian(vcpu)) \
567 return be##size##_to_cpu(vcpu->arch.shared->reg); \
568 else \
569 return le##size##_to_cpu(vcpu->arch.shared->reg); \
570} \
571
572#define SHARED_WRAPPER_SET(reg, size) \
573static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, u##size val) \
574{ \
575 if (kvmppc_shared_big_endian(vcpu)) \
576 vcpu->arch.shared->reg = cpu_to_be##size(val); \
577 else \
578 vcpu->arch.shared->reg = cpu_to_le##size(val); \
579} \
580
581#define SHARED_WRAPPER(reg, size) \
582 SHARED_WRAPPER_GET(reg, size) \
583 SHARED_WRAPPER_SET(reg, size) \
584
5a484c7c
BB		 585#define SPRNG_WRAPPER(reg, bookehv_spr) \
586 SPRNG_WRAPPER_GET(reg, bookehv_spr) \
587 SPRNG_WRAPPER_SET(reg, bookehv_spr) \
1dc0c5b8
BB		 588
589#ifdef CONFIG_KVM_BOOKE_HV
590
5a484c7c
BB		 591#define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \
592 SPRNG_WRAPPER(reg, bookehv_spr) \
1dc0c5b8
BB		 593
594#else
595
5a484c7c 596#define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \
1dc0c5b8
BB		 597 SHARED_WRAPPER(reg, size) \
598
599#endif
600
5deb8e7a 601SHARED_WRAPPER(critical, 64)
1dc0c5b8
BB		 602SHARED_SPRNG_WRAPPER(sprg0, 64, SPRN_GSPRG0)
603SHARED_SPRNG_WRAPPER(sprg1, 64, SPRN_GSPRG1)
604SHARED_SPRNG_WRAPPER(sprg2, 64, SPRN_GSPRG2)
605SHARED_SPRNG_WRAPPER(sprg3, 64, SPRN_GSPRG3)
606SHARED_SPRNG_WRAPPER(srr0, 64, SPRN_GSRR0)
607SHARED_SPRNG_WRAPPER(srr1, 64, SPRN_GSRR1)
608SHARED_SPRNG_WRAPPER(dar, 64, SPRN_GDEAR)
dc168549 609SHARED_SPRNG_WRAPPER(esr, 64, SPRN_GESR)
5deb8e7a
AG		 610SHARED_WRAPPER_GET(msr, 64)
611static inline void kvmppc_set_msr_fast(struct kvm_vcpu *vcpu, u64 val)
612{
613 if (kvmppc_shared_big_endian(vcpu))
614 vcpu->arch.shared->msr = cpu_to_be64(val);
615 else
616 vcpu->arch.shared->msr = cpu_to_le64(val);
617}
618SHARED_WRAPPER(dsisr, 32)
619SHARED_WRAPPER(int_pending, 32)
620SHARED_WRAPPER(sprg4, 64)
621SHARED_WRAPPER(sprg5, 64)
622SHARED_WRAPPER(sprg6, 64)
623SHARED_WRAPPER(sprg7, 64)
624
625static inline u32 kvmppc_get_sr(struct kvm_vcpu *vcpu, int nr)
626{
627 if (kvmppc_shared_big_endian(vcpu))
628 return be32_to_cpu(vcpu->arch.shared->sr[nr]);
629 else
630 return le32_to_cpu(vcpu->arch.shared->sr[nr]);
631}
632
633static inline void kvmppc_set_sr(struct kvm_vcpu *vcpu, int nr, u32 val)
634{
635 if (kvmppc_shared_big_endian(vcpu))
636 vcpu->arch.shared->sr[nr] = cpu_to_be32(val);
637 else
638 vcpu->arch.shared->sr[nr] = cpu_to_le32(val);
639}
640
5f1c248f
SW		 641/*
642 * Please call after prepare_to_enter. This function puts the lazy ee and irq
643 * disabled tracking state back to normal mode, without actually enabling
644 * interrupts.
645 */
646static inline void kvmppc_fix_ee_before_entry(void)
bd2be683 647{
5f1c248f
SW		 648 trace_hardirqs_on();
649
bd2be683 650#ifdef CONFIG_PPC64
6c85f52b
SW		 651 /*
652 * To avoid races, the caller must have gone directly from having
653 * interrupts fully-enabled to hard-disabled.
654 */
655 WARN_ON(local_paca->irq_happened != PACA_IRQ_HARD_DIS);
656
bd2be683
AG		 657 /* Only need to enable IRQs by hard enabling them after this */
658 local_paca->irq_happened = 0;
659 local_paca->soft_enabled = 1;
660#endif
661}
249ba1ee 662
7cdd7a95
MC		 663static inline ulong kvmppc_get_ea_indexed(struct kvm_vcpu *vcpu, int ra, int rb)
664{
665 ulong ea;
8823a8fd 666 ulong msr_64bit = 0;
7cdd7a95
MC		 667
668 ea = kvmppc_get_gpr(vcpu, rb);
669 if (ra)
670 ea += kvmppc_get_gpr(vcpu, ra);
671
8823a8fd
MC		 672#if defined(CONFIG_PPC_BOOK3E_64)
673 msr_64bit = MSR_CM;
674#elif defined(CONFIG_PPC_BOOK3S_64)
675 msr_64bit = MSR_SF;
676#endif
677
5deb8e7a 678 if (!(kvmppc_get_msr(vcpu) & msr_64bit))
8823a8fd
MC		 679 ea = (uint32_t)ea;
680
7cdd7a95
MC		 681 return ea;
682}
683
54695c30
BH		 684extern void xics_wake_cpu(int cpu);
685
bbf45ba5 686#endif /* __POWERPC_KVM_PPC_H__ */
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