projects / linux-2.6-block.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Merge drm/drm-next into drm-misc-next
[linux-2.6-block.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
70923603 55enum instruction_fetch_type {
51f04726
MC		 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);
6f63e81b
BL		 81extern int kvmppc_handle_vsx_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
82 unsigned int rt, unsigned int bytes,
83 int is_default_endian, int mmio_sign_extend);
acc9eb93
SG		 84extern int kvmppc_handle_vmx_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
85 unsigned int rt, unsigned int bytes, int is_default_endian);
86extern int kvmppc_handle_vmx_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
87 unsigned int rs, unsigned int bytes, int is_default_endian);
bbf45ba5 88extern int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
73601775
CLG		 89 u64 val, unsigned int bytes,
90 int is_default_endian);
6f63e81b
BL		 91extern int kvmppc_handle_vsx_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
92 int rs, unsigned int bytes,
93 int is_default_endian);
bbf45ba5 94
51f04726 95extern int kvmppc_load_last_inst(struct kvm_vcpu *vcpu,
70923603 96 enum instruction_fetch_type type, u32 *inst);
51f04726 97
35c4a733
AG		 98extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
99 bool data);
100extern int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
101 bool data);
bbf45ba5
HB		 102extern int kvmppc_emulate_instruction(struct kvm_run *run,
103 struct kvm_vcpu *vcpu);
d69614a2 104extern int kvmppc_emulate_loadstore(struct kvm_vcpu *vcpu);
ce263d70 105extern int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu);
75f74f0d 106extern void kvmppc_emulate_dec(struct kvm_vcpu *vcpu);
5ce941ee 107extern u32 kvmppc_get_dec(struct kvm_vcpu *vcpu, u64 tb);
d02d4d15 108extern void kvmppc_decrementer_func(struct kvm_vcpu *vcpu);
af8f38b3 109extern int kvmppc_sanity_check(struct kvm_vcpu *vcpu);
f61c94bb
BB		 110extern int kvmppc_subarch_vcpu_init(struct kvm_vcpu *vcpu);
111extern void kvmppc_subarch_vcpu_uninit(struct kvm_vcpu *vcpu);
bbf45ba5 112
ecc0981f
HB		 113/* Core-specific hooks */
114
89168618 115extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr,
7924bd41 116 unsigned int gtlb_idx);
bbf45ba5 117extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode);
49dd2c49 118extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid);
ecc0981f 119extern void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu);
9cc5e953 120extern int kvmppc_mmu_init(struct kvm_vcpu *vcpu);
fa86b8dd
HB		 121extern int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
122extern int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
be8d1cae
HB		 123extern gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index,
124 gva_t eaddr);
b52a638c
HB		 125extern void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu);
126extern void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu);
7d15c06f
AG		 127extern int kvmppc_xlate(struct kvm_vcpu *vcpu, ulong eaddr,
128 enum xlate_instdata xlid, enum xlate_readwrite xlrw,
129 struct kvmppc_pte *pte);
9dd921cf 130
db93f574
HB		 131extern struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm,
132 unsigned int id);
133extern void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu);
5cbb5106 134extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu);
9dd921cf 135extern int kvmppc_core_check_processor_compat(void);
5cbb5106
HB		 136extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
137 struct kvm_translation *tr);
9dd921cf
HB		 138
139extern void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
140extern void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu);
141
a8e4ef84 142extern int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu);
9dd921cf 143extern int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu);
25a8a02d 144extern void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags);
307d9279
PM		 145extern void kvmppc_core_queue_fpunavail(struct kvm_vcpu *vcpu);
146extern void kvmppc_core_queue_vec_unavail(struct kvm_vcpu *vcpu);
147extern void kvmppc_core_queue_vsx_unavail(struct kvm_vcpu *vcpu);
9dd921cf 148extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu);
7706664d 149extern void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu);
9dd921cf
HB		 150extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,
151 struct kvm_interrupt *irq);
4fe27d2a 152extern void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu);
8de12015
AG		 153extern void kvmppc_core_queue_dtlb_miss(struct kvm_vcpu *vcpu, ulong dear_flags,
154 ulong esr_flags);
155extern void kvmppc_core_queue_data_storage(struct kvm_vcpu *vcpu,
156 ulong dear_flags,
157 ulong esr_flags);
158extern void kvmppc_core_queue_itlb_miss(struct kvm_vcpu *vcpu);
159extern void kvmppc_core_queue_inst_storage(struct kvm_vcpu *vcpu,
160 ulong esr_flags);
862d31f7 161extern void kvmppc_core_flush_tlb(struct kvm_vcpu *vcpu);
7c973a2e 162extern int kvmppc_core_check_requests(struct kvm_vcpu *vcpu);
75f74f0d 163
db93f574
HB		 164extern int kvmppc_booke_init(void);
165extern void kvmppc_booke_exit(void);
166
c30f8a6c 167extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu);
2a342ed5 168extern int kvmppc_kvm_pv(struct kvm_vcpu *vcpu);
a4cd8b23 169extern void kvmppc_map_magic(struct kvm_vcpu *vcpu);
c30f8a6c 170
aae0777f
DG		 171extern int kvmppc_allocate_hpt(struct kvm_hpt_info *info, u32 order);
172extern void kvmppc_set_hpt(struct kvm *kvm, struct kvm_hpt_info *info);
f98a8bf9 173extern long kvmppc_alloc_reset_hpt(struct kvm *kvm, int order);
aae0777f 174extern void kvmppc_free_hpt(struct kvm_hpt_info *info);
18c3640c 175extern void kvmppc_rmap_reset(struct kvm *kvm);
de56a948
PM		 176extern long kvmppc_prepare_vrma(struct kvm *kvm,
177 struct kvm_userspace_memory_region *mem);
c77162de 178extern void kvmppc_map_vrma(struct kvm_vcpu *vcpu,
da9d1d7f 179 struct kvm_memory_slot *memslot, unsigned long porder);
a8606e20 180extern int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu);
121f80ba
AK		 181extern long kvm_spapr_tce_attach_iommu_group(struct kvm *kvm, int tablefd,
182 struct iommu_group *grp);
183extern void kvm_spapr_tce_release_iommu_group(struct kvm *kvm,
184 struct iommu_group *grp);
18c3640c
PM		 185extern int kvmppc_switch_mmu_to_hpt(struct kvm *kvm);
186extern int kvmppc_switch_mmu_to_radix(struct kvm *kvm);
ded13fc1 187extern void kvmppc_setup_partition_table(struct kvm *kvm);
bc5ad3f3 188
54738c09 189extern long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm,
58ded420 190 struct kvm_create_spapr_tce_64 *args);
d3695aa4 191extern struct kvmppc_spapr_tce_table *kvmppc_find_table(
503bfcbe 192 struct kvm *kvm, unsigned long liobn);
b1af23d8
AK		 193#define kvmppc_ioba_validate(stt, ioba, npages) \
194 (iommu_tce_check_ioba((stt)->page_shift, (stt)->offset, \
195 (stt)->size, (ioba), (npages)) ? \
196 H_PARAMETER : H_SUCCESS)
a3ac077b 197extern long kvmppc_tce_to_ua(struct kvm *kvm, unsigned long tce,
d3695aa4
AK		 198 unsigned long *ua, unsigned long **prmap);
199extern void kvmppc_tce_put(struct kvmppc_spapr_tce_table *tt,
200 unsigned long idx, unsigned long tce);
f31e65e1
BH		 201extern long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
202 unsigned long ioba, unsigned long tce);
d3695aa4
AK		 203extern long kvmppc_h_put_tce_indirect(struct kvm_vcpu *vcpu,
204 unsigned long liobn, unsigned long ioba,
205 unsigned long tce_list, unsigned long npages);
206extern long kvmppc_h_stuff_tce(struct kvm_vcpu *vcpu,
207 unsigned long liobn, unsigned long ioba,
208 unsigned long tce_value, unsigned long npages);
69e9fbb2
LD		 209extern long kvmppc_h_get_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
210 unsigned long ioba);
db9a290d
DG		 211extern struct page *kvm_alloc_hpt_cma(unsigned long nr_pages);
212extern void kvm_free_hpt_cma(struct page *page, unsigned long nr_pages);
f9e0554d
PM		 213extern int kvmppc_core_init_vm(struct kvm *kvm);
214extern void kvmppc_core_destroy_vm(struct kvm *kvm);
5587027c
AK		 215extern void kvmppc_core_free_memslot(struct kvm *kvm,
216 struct kvm_memory_slot *free,
a66b48c3 217 struct kvm_memory_slot *dont);
5587027c
AK		 218extern int kvmppc_core_create_memslot(struct kvm *kvm,
219 struct kvm_memory_slot *slot,
a66b48c3 220 unsigned long npages);
f9e0554d 221extern int kvmppc_core_prepare_memory_region(struct kvm *kvm,
a66b48c3 222 struct kvm_memory_slot *memslot,
09170a49 223 const struct kvm_userspace_memory_region *mem);
f9e0554d 224extern void kvmppc_core_commit_memory_region(struct kvm *kvm,
09170a49 225 const struct kvm_userspace_memory_region *mem,
f36f3f28 226 const struct kvm_memory_slot *old,
f032b734
BR		 227 const struct kvm_memory_slot *new,
228 enum kvm_mr_change change);
5b74716e
BH		 229extern int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm,
230 struct kvm_ppc_smmu_info *info);
dfe49dbd
PM		 231extern void kvmppc_core_flush_memslot(struct kvm *kvm,
232 struct kvm_memory_slot *memslot);
f9e0554d 233
d30f6e48
SW		 234extern int kvmppc_bookehv_init(void);
235extern void kvmppc_bookehv_exit(void);
236
03d25c5b
AG		 237extern int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu);
238
a2932923 239extern int kvm_vm_ioctl_get_htab_fd(struct kvm *kvm, struct kvm_get_htab_fd *);
5e985969
DG		 240extern long kvm_vm_ioctl_resize_hpt_prepare(struct kvm *kvm,
241 struct kvm_ppc_resize_hpt *rhpt);
242extern long kvm_vm_ioctl_resize_hpt_commit(struct kvm *kvm,
243 struct kvm_ppc_resize_hpt *rhpt);
a2932923 244
5df554ad
SW		 245int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq);
246
8e591cb7
ME		 247extern int kvm_vm_ioctl_rtas_define_token(struct kvm *kvm, void __user *argp);
248extern int kvmppc_rtas_hcall(struct kvm_vcpu *vcpu);
249extern void kvmppc_rtas_tokens_free(struct kvm *kvm);
5af50993 250
bc5ad3f3
BH		 251extern int kvmppc_xics_set_xive(struct kvm *kvm, u32 irq, u32 server,
252 u32 priority);
253extern int kvmppc_xics_get_xive(struct kvm *kvm, u32 irq, u32 *server,
254 u32 *priority);
d19bd862
PM		 255extern int kvmppc_xics_int_on(struct kvm *kvm, u32 irq);
256extern int kvmppc_xics_int_off(struct kvm *kvm, u32 irq);
8e591cb7 257
2f699a59
BB		 258void kvmppc_core_dequeue_debug(struct kvm_vcpu *vcpu);
259void kvmppc_core_queue_debug(struct kvm_vcpu *vcpu);
260
3a167bea
AK		 261union kvmppc_one_reg {
262 u32 wval;
263 u64 dval;
264 vector128 vval;
265 u64 vsxval[2];
6f63e81b 266 u32 vsx32val[4];
acc9eb93
SG		 267 u16 vsx16val[8];
268 u8 vsx8val[16];
3a167bea
AK		 269 struct {
270 u64 addr;
271 u64 length;
272 } vpaval;
273};
274
275struct kvmppc_ops {
cbbc58d4 276 struct module *owner;
3a167bea
AK		 277 int (*get_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
278 int (*set_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
279 int (*get_one_reg)(struct kvm_vcpu *vcpu, u64 id,
280 union kvmppc_one_reg *val);
281 int (*set_one_reg)(struct kvm_vcpu *vcpu, u64 id,
282 union kvmppc_one_reg *val);
283 void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
284 void (*vcpu_put)(struct kvm_vcpu *vcpu);
285 void (*set_msr)(struct kvm_vcpu *vcpu, u64 msr);
286 int (*vcpu_run)(struct kvm_run *run, struct kvm_vcpu *vcpu);
287 struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned int id);
288 void (*vcpu_free)(struct kvm_vcpu *vcpu);
289 int (*check_requests)(struct kvm_vcpu *vcpu);
290 int (*get_dirty_log)(struct kvm *kvm, struct kvm_dirty_log *log);
291 void (*flush_memslot)(struct kvm *kvm, struct kvm_memory_slot *memslot);
292 int (*prepare_memory_region)(struct kvm *kvm,
293 struct kvm_memory_slot *memslot,
09170a49 294 const struct kvm_userspace_memory_region *mem);
3a167bea 295 void (*commit_memory_region)(struct kvm *kvm,
09170a49 296 const struct kvm_userspace_memory_region *mem,
f36f3f28 297 const struct kvm_memory_slot *old,
f032b734
BR		 298 const struct kvm_memory_slot *new,
299 enum kvm_mr_change change);
3a167bea
AK		 300 int (*unmap_hva_range)(struct kvm *kvm, unsigned long start,
301 unsigned long end);
57128468 302 int (*age_hva)(struct kvm *kvm, unsigned long start, unsigned long end);
3a167bea
AK		 303 int (*test_age_hva)(struct kvm *kvm, unsigned long hva);
304 void (*set_spte_hva)(struct kvm *kvm, unsigned long hva, pte_t pte);
305 void (*mmu_destroy)(struct kvm_vcpu *vcpu);
306 void (*free_memslot)(struct kvm_memory_slot *free,
307 struct kvm_memory_slot *dont);
308 int (*create_memslot)(struct kvm_memory_slot *slot,
309 unsigned long npages);
310 int (*init_vm)(struct kvm *kvm);
311 void (*destroy_vm)(struct kvm *kvm);
3a167bea
AK		 312 int (*get_smmu_info)(struct kvm *kvm, struct kvm_ppc_smmu_info *info);
313 int (*emulate_op)(struct kvm_run *run, struct kvm_vcpu *vcpu,
314 unsigned int inst, int *advance);
315 int (*emulate_mtspr)(struct kvm_vcpu *vcpu, int sprn, ulong spr_val);
316 int (*emulate_mfspr)(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val);
317 void (*fast_vcpu_kick)(struct kvm_vcpu *vcpu);
318 long (*arch_vm_ioctl)(struct file *filp, unsigned int ioctl,
319 unsigned long arg);
ae2113a4 320 int (*hcall_implemented)(unsigned long hcall);
9576730d
SW		 321 int (*irq_bypass_add_producer)(struct irq_bypass_consumer *,
322 struct irq_bypass_producer *);
323 void (*irq_bypass_del_producer)(struct irq_bypass_consumer *,
324 struct irq_bypass_producer *);
c9270132
PM		 325 int (*configure_mmu)(struct kvm *kvm, struct kvm_ppc_mmuv3_cfg *cfg);
326 int (*get_rmmu_info)(struct kvm *kvm, struct kvm_ppc_rmmu_info *info);
3c313524
PM		 327 int (*set_smt_mode)(struct kvm *kvm, unsigned long mode,
328 unsigned long flags);
2e6baa46 329 void (*giveup_ext)(struct kvm_vcpu *vcpu, ulong msr);
aa069a99 330 int (*enable_nested)(struct kvm *kvm);
dceadcf9
SJS		 331 int (*load_from_eaddr)(struct kvm_vcpu *vcpu, ulong *eaddr, void *ptr,
332 int size);
333 int (*store_to_eaddr)(struct kvm_vcpu *vcpu, ulong *eaddr, void *ptr,
334 int size);
3a167bea
AK		 335};
336
cbbc58d4
AK		 337extern struct kvmppc_ops *kvmppc_hv_ops;
338extern struct kvmppc_ops *kvmppc_pr_ops;
3a167bea 339
51f04726 340static inline int kvmppc_get_last_inst(struct kvm_vcpu *vcpu,
70923603 341 enum instruction_fetch_type type, u32 *inst)
51f04726
MC		 342{
343 int ret = EMULATE_DONE;
344 u32 fetched_inst;
345
346 /* Load the instruction manually if it failed to do so in the
347 * exit path */
348 if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
349 ret = kvmppc_load_last_inst(vcpu, type, &vcpu->arch.last_inst);
350
351 /* Write fetch_failed unswapped if the fetch failed */
352 if (ret == EMULATE_DONE)
353 fetched_inst = kvmppc_need_byteswap(vcpu) ?
354 swab32(vcpu->arch.last_inst) :
355 vcpu->arch.last_inst;
356 else
357 fetched_inst = vcpu->arch.last_inst;
358
359 *inst = fetched_inst;
360 return ret;
361}
362
a78b55d1
AK		 363static inline bool is_kvmppc_hv_enabled(struct kvm *kvm)
364{
365 return kvm->arch.kvm_ops == kvmppc_hv_ops;
366}
367
e928e9cb
ME		 368extern int kvmppc_hwrng_present(void);
369
0564ee8a
AG		 370/*
371 * Cuts out inst bits with ordering according to spec.
372 * That means the leftmost bit is zero. All given bits are included.
373 */
374static inline u32 kvmppc_get_field(u64 inst, int msb, int lsb)
375{
376 u32 r;
377 u32 mask;
378
379 BUG_ON(msb > lsb);
380
381 mask = (1 << (lsb - msb + 1)) - 1;
382 r = (inst >> (63 - lsb)) & mask;
383
384 return r;
385}
386
387/*
388 * Replaces inst bits with ordering according to spec.
389 */
390static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value)
391{
392 u32 r;
393 u32 mask;
394
395 BUG_ON(msb > lsb);
396
397 mask = ((1 << (lsb - msb + 1)) - 1) << (63 - lsb);
398 r = (inst & ~mask) | ((value << (63 - lsb)) & mask);
399
400 return r;
401}
402
a136a8bd
PM		 403#define one_reg_size(id) \
404 (1ul << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
405
406#define get_reg_val(id, reg) ({ \
407 union kvmppc_one_reg __u; \
408 switch (one_reg_size(id)) { \
409 case 4: __u.wval = (reg); break; \
410 case 8: __u.dval = (reg); break; \
411 default: BUG(); \
412 } \
413 __u; \
414})
415
416
417#define set_reg_val(id, val) ({ \
418 u64 __v; \
419 switch (one_reg_size(id)) { \
420 case 4: __v = (val).wval; break; \
421 case 8: __v = (val).dval; break; \
422 default: BUG(); \
423 } \
424 __v; \
425})
426
3a167bea 427int kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
5ce941ee
SW		 428int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
429
3a167bea 430int kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
5ce941ee
SW		 431int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
432
31f3438e
PM		 433int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
434int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
a136a8bd
PM		 435int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
436int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
31f3438e 437
5ce941ee
SW		 438void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid);
439
5df554ad 440struct openpic;
5df554ad 441
9975f5e3 442#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
fa61a4e3 443extern void kvm_cma_reserve(void) __init;
371fefd6
PM		 444static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
445{
d2e60075 446 paca_ptrs[cpu]->kvm_hstate.xics_phys = (void __iomem *)addr;
371fefd6 447}
aa04b4cc 448
5af50993
BH		 449static inline void kvmppc_set_xive_tima(int cpu,
450 unsigned long phys_addr,
451 void __iomem *virt_addr)
452{
d2e60075
NP		 453 paca_ptrs[cpu]->kvm_hstate.xive_tima_phys = (void __iomem *)phys_addr;
454 paca_ptrs[cpu]->kvm_hstate.xive_tima_virt = virt_addr;
371fefd6 455}
aa04b4cc 456
54695c30
BH		 457static inline u32 kvmppc_get_xics_latch(void)
458{
699cc876 459 u32 xirr;
54695c30 460
699cc876 461 xirr = get_paca()->kvm_hstate.saved_xirr;
54695c30 462 get_paca()->kvm_hstate.saved_xirr = 0;
54695c30
BH		 463 return xirr;
464}
465
466static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi)
467{
d2e60075 468 paca_ptrs[cpu]->kvm_hstate.host_ipi = host_ipi;
54695c30
BH		 469}
470
3a167bea
AK		 471static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
472{
cbbc58d4 473 vcpu->kvm->arch.kvm_ops->fast_vcpu_kick(vcpu);
3a167bea 474}
aa04b4cc 475
441c19c8
ME		 476extern void kvm_hv_vm_activated(void);
477extern void kvm_hv_vm_deactivated(void);
478extern bool kvm_hv_mode_active(void);
479
371fefd6 480#else
fa61a4e3
AK		 481static inline void __init kvm_cma_reserve(void)
482{}
483
371fefd6
PM		 484static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
485{}
aa04b4cc 486
5af50993
BH		 487static inline void kvmppc_set_xive_tima(int cpu,
488 unsigned long phys_addr,
489 void __iomem *virt_addr)
490{}
491
54695c30
BH		 492static inline u32 kvmppc_get_xics_latch(void)
493{
494 return 0;
495}
496
497static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi)
498{}
499
500static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
501{
502 kvm_vcpu_kick(vcpu);
503}
441c19c8
ME		 504
505static inline bool kvm_hv_mode_active(void) { return false; }
506
bc5ad3f3
BH		 507#endif
508
509#ifdef CONFIG_KVM_XICS
510static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu)
511{
512 return vcpu->arch.irq_type == KVMPPC_IRQ_XICS;
513}
8daaafc8
SW		 514
515static inline struct kvmppc_passthru_irqmap *kvmppc_get_passthru_irqmap(
516 struct kvm *kvm)
517{
644abbb2 518 if (kvm && kvm_irq_bypass)
8daaafc8
SW		 519 return kvm->arch.pimap;
520 return NULL;
521}
522
79b6c247
SW		 523extern void kvmppc_alloc_host_rm_ops(void);
524extern void kvmppc_free_host_rm_ops(void);
8daaafc8 525extern void kvmppc_free_pimap(struct kvm *kvm);
f7af5209 526extern int kvmppc_xics_rm_complete(struct kvm_vcpu *vcpu, u32 hcall);
bc5ad3f3 527extern void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu);
bc5ad3f3 528extern int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd);
8b78645c
PM		 529extern u64 kvmppc_xics_get_icp(struct kvm_vcpu *vcpu);
530extern int kvmppc_xics_set_icp(struct kvm_vcpu *vcpu, u64 icpval);
5975a2e0
PM		 531extern int kvmppc_xics_connect_vcpu(struct kvm_device *dev,
532 struct kvm_vcpu *vcpu, u32 cpu);
0c2a6606 533extern void kvmppc_xics_ipi_action(void);
5d375199
PM		 534extern void kvmppc_xics_set_mapped(struct kvm *kvm, unsigned long guest_irq,
535 unsigned long host_irq);
536extern void kvmppc_xics_clr_mapped(struct kvm *kvm, unsigned long guest_irq,
537 unsigned long host_irq);
f725758b
PM		 538extern long kvmppc_deliver_irq_passthru(struct kvm_vcpu *vcpu, __be32 xirr,
539 struct kvmppc_irq_map *irq_map,
540 struct kvmppc_passthru_irqmap *pimap,
541 bool *again);
5af50993
BH		 542
543extern int kvmppc_xics_set_irq(struct kvm *kvm, int irq_source_id, u32 irq,
544 int level, bool line_status);
545
520fe9c6 546extern int h_ipi_redirect;
bc5ad3f3 547#else
8daaafc8
SW		 548static inline struct kvmppc_passthru_irqmap *kvmppc_get_passthru_irqmap(
549 struct kvm *kvm)
550 { return NULL; }
79b6c247
SW		 551static inline void kvmppc_alloc_host_rm_ops(void) {};
552static inline void kvmppc_free_host_rm_ops(void) {};
8daaafc8 553static inline void kvmppc_free_pimap(struct kvm *kvm) {};
f7af5209
SW		 554static inline int kvmppc_xics_rm_complete(struct kvm_vcpu *vcpu, u32 hcall)
555 { return 0; }
bc5ad3f3
BH		 556static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu)
557 { return 0; }
558static inline void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu) { }
bc5ad3f3
BH		 559static inline int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd)
560 { return 0; }
371fefd6
PM		 561#endif
562
5af50993
BH		 563#ifdef CONFIG_KVM_XIVE
564/*
565 * Below the first "xive" is the "eXternal Interrupt Virtualization Engine"
566 * ie. P9 new interrupt controller, while the second "xive" is the legacy
567 * "eXternal Interrupt Vector Entry" which is the configuration of an
568 * interrupt on the "xics" interrupt controller on P8 and earlier. Those
569 * two function consume or produce a legacy "XIVE" state from the
570 * new "XIVE" interrupt controller.
571 */
572extern int kvmppc_xive_set_xive(struct kvm *kvm, u32 irq, u32 server,
573 u32 priority);
574extern int kvmppc_xive_get_xive(struct kvm *kvm, u32 irq, u32 *server,
575 u32 *priority);
576extern int kvmppc_xive_int_on(struct kvm *kvm, u32 irq);
577extern int kvmppc_xive_int_off(struct kvm *kvm, u32 irq);
578extern void kvmppc_xive_init_module(void);
579extern void kvmppc_xive_exit_module(void);
580
581extern int kvmppc_xive_connect_vcpu(struct kvm_device *dev,
582 struct kvm_vcpu *vcpu, u32 cpu);
583extern void kvmppc_xive_cleanup_vcpu(struct kvm_vcpu *vcpu);
584extern int kvmppc_xive_set_mapped(struct kvm *kvm, unsigned long guest_irq,
585 struct irq_desc *host_desc);
586extern int kvmppc_xive_clr_mapped(struct kvm *kvm, unsigned long guest_irq,
587 struct irq_desc *host_desc);
588extern u64 kvmppc_xive_get_icp(struct kvm_vcpu *vcpu);
589extern int kvmppc_xive_set_icp(struct kvm_vcpu *vcpu, u64 icpval);
590
591extern int kvmppc_xive_set_irq(struct kvm *kvm, int irq_source_id, u32 irq,
592 int level, bool line_status);
95a6432c 593extern void kvmppc_xive_push_vcpu(struct kvm_vcpu *vcpu);
5af50993
BH		 594#else
595static inline int kvmppc_xive_set_xive(struct kvm *kvm, u32 irq, u32 server,
596 u32 priority) { return -1; }
597static inline int kvmppc_xive_get_xive(struct kvm *kvm, u32 irq, u32 *server,
598 u32 *priority) { return -1; }
599static inline int kvmppc_xive_int_on(struct kvm *kvm, u32 irq) { return -1; }
600static inline int kvmppc_xive_int_off(struct kvm *kvm, u32 irq) { return -1; }
601static inline void kvmppc_xive_init_module(void) { }
602static inline void kvmppc_xive_exit_module(void) { }
603
604static inline int kvmppc_xive_connect_vcpu(struct kvm_device *dev,
605 struct kvm_vcpu *vcpu, u32 cpu) { return -EBUSY; }
606static inline void kvmppc_xive_cleanup_vcpu(struct kvm_vcpu *vcpu) { }
607static inline int kvmppc_xive_set_mapped(struct kvm *kvm, unsigned long guest_irq,
608 struct irq_desc *host_desc) { return -ENODEV; }
609static inline int kvmppc_xive_clr_mapped(struct kvm *kvm, unsigned long guest_irq,
610 struct irq_desc *host_desc) { return -ENODEV; }
611static inline u64 kvmppc_xive_get_icp(struct kvm_vcpu *vcpu) { return 0; }
612static inline int kvmppc_xive_set_icp(struct kvm_vcpu *vcpu, u64 icpval) { return -ENOENT; }
613
614static inline int kvmppc_xive_set_irq(struct kvm *kvm, int irq_source_id, u32 irq,
615 int level, bool line_status) { return -ENODEV; }
95a6432c 616static inline void kvmppc_xive_push_vcpu(struct kvm_vcpu *vcpu) { }
5af50993
BH		 617#endif /* CONFIG_KVM_XIVE */
618
e34af784
PM		 619/*
620 * Prototypes for functions called only from assembler code.
621 * Having prototypes reduces sparse errors.
622 */
623long kvmppc_rm_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
624 unsigned long ioba, unsigned long tce);
625long kvmppc_rm_h_put_tce_indirect(struct kvm_vcpu *vcpu,
626 unsigned long liobn, unsigned long ioba,
627 unsigned long tce_list, unsigned long npages);
628long kvmppc_rm_h_stuff_tce(struct kvm_vcpu *vcpu,
629 unsigned long liobn, unsigned long ioba,
630 unsigned long tce_value, unsigned long npages);
631long int kvmppc_rm_h_confer(struct kvm_vcpu *vcpu, int target,
632 unsigned int yield_count);
633long kvmppc_h_random(struct kvm_vcpu *vcpu);
634void kvmhv_commence_exit(int trap);
635long kvmppc_realmode_machine_check(struct kvm_vcpu *vcpu);
636void kvmppc_subcore_enter_guest(void);
637void kvmppc_subcore_exit_guest(void);
638long kvmppc_realmode_hmi_handler(void);
639long kvmppc_h_enter(struct kvm_vcpu *vcpu, unsigned long flags,
640 long pte_index, unsigned long pteh, unsigned long ptel);
641long kvmppc_h_remove(struct kvm_vcpu *vcpu, unsigned long flags,
642 unsigned long pte_index, unsigned long avpn);
643long kvmppc_h_bulk_remove(struct kvm_vcpu *vcpu);
644long kvmppc_h_protect(struct kvm_vcpu *vcpu, unsigned long flags,
645 unsigned long pte_index, unsigned long avpn,
646 unsigned long va);
647long kvmppc_h_read(struct kvm_vcpu *vcpu, unsigned long flags,
648 unsigned long pte_index);
649long kvmppc_h_clear_ref(struct kvm_vcpu *vcpu, unsigned long flags,
650 unsigned long pte_index);
651long kvmppc_h_clear_mod(struct kvm_vcpu *vcpu, unsigned long flags,
652 unsigned long pte_index);
653long kvmppc_hpte_hv_fault(struct kvm_vcpu *vcpu, unsigned long addr,
654 unsigned long slb_v, unsigned int status, bool data);
655unsigned long kvmppc_rm_h_xirr(struct kvm_vcpu *vcpu);
5af50993
BH		 656unsigned long kvmppc_rm_h_xirr_x(struct kvm_vcpu *vcpu);
657unsigned long kvmppc_rm_h_ipoll(struct kvm_vcpu *vcpu, unsigned long server);
e34af784
PM		 658int kvmppc_rm_h_ipi(struct kvm_vcpu *vcpu, unsigned long server,
659 unsigned long mfrr);
660int kvmppc_rm_h_cppr(struct kvm_vcpu *vcpu, unsigned long cppr);
661int kvmppc_rm_h_eoi(struct kvm_vcpu *vcpu, unsigned long xirr);
f7035ce9 662void kvmppc_guest_entry_inject_int(struct kvm_vcpu *vcpu);
e34af784 663
79b6c247
SW		 664/*
665 * Host-side operations we want to set up while running in real
666 * mode in the guest operating on the xics.
667 * Currently only VCPU wakeup is supported.
668 */
669
670union kvmppc_rm_state {
671 unsigned long raw;
672 struct {
673 u32 in_host;
674 u32 rm_action;
675 };
676};
677
678struct kvmppc_host_rm_core {
679 union kvmppc_rm_state rm_state;
680 void *rm_data;
681 char pad[112];
682};
683
684struct kvmppc_host_rm_ops {
685 struct kvmppc_host_rm_core *rm_core;
686 void (*vcpu_kick)(struct kvm_vcpu *vcpu);
687};
688
689extern struct kvmppc_host_rm_ops *kvmppc_host_rm_ops_hv;
690
34f754b9
BB		 691static inline unsigned long kvmppc_get_epr(struct kvm_vcpu *vcpu)
692{
693#ifdef CONFIG_KVM_BOOKE_HV
694 return mfspr(SPRN_GEPR);
695#elif defined(CONFIG_BOOKE)
696 return vcpu->arch.epr;
697#else
698 return 0;
699#endif
700}
701
1c810636
AG		 702static inline void kvmppc_set_epr(struct kvm_vcpu *vcpu, u32 epr)
703{
704#ifdef CONFIG_KVM_BOOKE_HV
705 mtspr(SPRN_GEPR, epr);
706#elif defined(CONFIG_BOOKE)
707 vcpu->arch.epr = epr;
708#endif
709}
710
5df554ad
SW		 711#ifdef CONFIG_KVM_MPIC
712
713void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu);
eb1e4f43
SW		 714int kvmppc_mpic_connect_vcpu(struct kvm_device *dev, struct kvm_vcpu *vcpu,
715 u32 cpu);
716void kvmppc_mpic_disconnect_vcpu(struct openpic *opp, struct kvm_vcpu *vcpu);
5df554ad
SW		 717
718#else
719
720static inline void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu)
721{
722}
723
eb1e4f43
SW		 724static inline int kvmppc_mpic_connect_vcpu(struct kvm_device *dev,
725 struct kvm_vcpu *vcpu, u32 cpu)
726{
727 return -EINVAL;
728}
729
730static inline void kvmppc_mpic_disconnect_vcpu(struct openpic *opp,
731 struct kvm_vcpu *vcpu)
732{
733}
734
5df554ad
SW		 735#endif /* CONFIG_KVM_MPIC */
736
dc83b8bc
SW		 737int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu,
738 struct kvm_config_tlb *cfg);
739int kvm_vcpu_ioctl_dirty_tlb(struct kvm_vcpu *vcpu,
740 struct kvm_dirty_tlb *cfg);
741
043cc4d7
SW		 742long kvmppc_alloc_lpid(void);
743void kvmppc_claim_lpid(long lpid);
744void kvmppc_free_lpid(long lpid);
745void kvmppc_init_lpid(unsigned long nr_lpids);
746
ba049e93 747static inline void kvmppc_mmu_flush_icache(kvm_pfn_t pfn)
249ba1ee 748{
249ba1ee 749 struct page *page;
adccf65c
BB		 750 /*
751 * We can only access pages that the kernel maps
752 * as memory. Bail out for unmapped ones.
753 */
754 if (!pfn_valid(pfn))
755 return;
756
757 /* Clear i-cache for new pages */
249ba1ee
AG		 758 page = pfn_to_page(pfn);
759 if (!test_bit(PG_arch_1, &page->flags)) {
760 flush_dcache_icache_page(page);
761 set_bit(PG_arch_1, &page->flags);
762 }
763}
764
5deb8e7a
AG		 765/*
766 * Shared struct helpers. The shared struct can be little or big endian,
767 * depending on the guest endianness. So expose helpers to all of them.
768 */
769static inline bool kvmppc_shared_big_endian(struct kvm_vcpu *vcpu)
770{
771#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
772 /* Only Book3S_64 PR supports bi-endian for now */
773 return vcpu->arch.shared_big_endian;
774#elif defined(CONFIG_PPC_BOOK3S_64) && defined(__LITTLE_ENDIAN__)
775 /* Book3s_64 HV on little endian is always little endian */
776 return false;
777#else
778 return true;
779#endif
780}
781
5a484c7c 782#define SPRNG_WRAPPER_GET(reg, bookehv_spr) \
1dc0c5b8
BB		 783static inline ulong kvmppc_get_##reg(struct kvm_vcpu *vcpu) \
784{ \
5a484c7c 785 return mfspr(bookehv_spr); \
1dc0c5b8
BB		 786} \
787
5a484c7c 788#define SPRNG_WRAPPER_SET(reg, bookehv_spr) \
1dc0c5b8
BB		 789static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, ulong val) \
790{ \
5a484c7c 791 mtspr(bookehv_spr, val); \
1dc0c5b8
BB		 792} \
793
5deb8e7a 794#define SHARED_WRAPPER_GET(reg, size) \
1dc0c5b8 795static inline u##size kvmppc_get_##reg(struct kvm_vcpu *vcpu) \
5deb8e7a
AG		 796{ \
797 if (kvmppc_shared_big_endian(vcpu)) \
798 return be##size##_to_cpu(vcpu->arch.shared->reg); \
799 else \
800 return le##size##_to_cpu(vcpu->arch.shared->reg); \
801} \
802
803#define SHARED_WRAPPER_SET(reg, size) \
804static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, u##size val) \
805{ \
806 if (kvmppc_shared_big_endian(vcpu)) \
807 vcpu->arch.shared->reg = cpu_to_be##size(val); \
808 else \
809 vcpu->arch.shared->reg = cpu_to_le##size(val); \
810} \
811
812#define SHARED_WRAPPER(reg, size) \
813 SHARED_WRAPPER_GET(reg, size) \
814 SHARED_WRAPPER_SET(reg, size) \
815
5a484c7c
BB		 816#define SPRNG_WRAPPER(reg, bookehv_spr) \
817 SPRNG_WRAPPER_GET(reg, bookehv_spr) \
818 SPRNG_WRAPPER_SET(reg, bookehv_spr) \
1dc0c5b8
BB		 819
820#ifdef CONFIG_KVM_BOOKE_HV
821
5a484c7c
BB		 822#define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \
823 SPRNG_WRAPPER(reg, bookehv_spr) \
1dc0c5b8
BB		 824
825#else
826
5a484c7c 827#define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \
1dc0c5b8
BB		 828 SHARED_WRAPPER(reg, size) \
829
830#endif
831
5deb8e7a 832SHARED_WRAPPER(critical, 64)
1dc0c5b8
BB		 833SHARED_SPRNG_WRAPPER(sprg0, 64, SPRN_GSPRG0)
834SHARED_SPRNG_WRAPPER(sprg1, 64, SPRN_GSPRG1)
835SHARED_SPRNG_WRAPPER(sprg2, 64, SPRN_GSPRG2)
836SHARED_SPRNG_WRAPPER(sprg3, 64, SPRN_GSPRG3)
837SHARED_SPRNG_WRAPPER(srr0, 64, SPRN_GSRR0)
838SHARED_SPRNG_WRAPPER(srr1, 64, SPRN_GSRR1)
839SHARED_SPRNG_WRAPPER(dar, 64, SPRN_GDEAR)
dc168549 840SHARED_SPRNG_WRAPPER(esr, 64, SPRN_GESR)
5deb8e7a
AG		 841SHARED_WRAPPER_GET(msr, 64)
842static inline void kvmppc_set_msr_fast(struct kvm_vcpu *vcpu, u64 val)
843{
844 if (kvmppc_shared_big_endian(vcpu))
845 vcpu->arch.shared->msr = cpu_to_be64(val);
846 else
847 vcpu->arch.shared->msr = cpu_to_le64(val);
848}
849SHARED_WRAPPER(dsisr, 32)
850SHARED_WRAPPER(int_pending, 32)
851SHARED_WRAPPER(sprg4, 64)
852SHARED_WRAPPER(sprg5, 64)
853SHARED_WRAPPER(sprg6, 64)
854SHARED_WRAPPER(sprg7, 64)
855
856static inline u32 kvmppc_get_sr(struct kvm_vcpu *vcpu, int nr)
857{
858 if (kvmppc_shared_big_endian(vcpu))
859 return be32_to_cpu(vcpu->arch.shared->sr[nr]);
860 else
861 return le32_to_cpu(vcpu->arch.shared->sr[nr]);
862}
863
864static inline void kvmppc_set_sr(struct kvm_vcpu *vcpu, int nr, u32 val)
865{
866 if (kvmppc_shared_big_endian(vcpu))
867 vcpu->arch.shared->sr[nr] = cpu_to_be32(val);
868 else
869 vcpu->arch.shared->sr[nr] = cpu_to_le32(val);
870}
871
5f1c248f
SW		 872/*
873 * Please call after prepare_to_enter. This function puts the lazy ee and irq
874 * disabled tracking state back to normal mode, without actually enabling
875 * interrupts.
876 */
877static inline void kvmppc_fix_ee_before_entry(void)
bd2be683 878{
5f1c248f
SW		 879 trace_hardirqs_on();
880
bd2be683 881#ifdef CONFIG_PPC64
6c85f52b
SW		 882 /*
883 * To avoid races, the caller must have gone directly from having
884 * interrupts fully-enabled to hard-disabled.
885 */
886 WARN_ON(local_paca->irq_happened != PACA_IRQ_HARD_DIS);
887
bd2be683
AG		 888 /* Only need to enable IRQs by hard enabling them after this */
889 local_paca->irq_happened = 0;
4e26bc4a 890 irq_soft_mask_set(IRQS_ENABLED);
bd2be683
AG		 891#endif
892}
249ba1ee 893
7cdd7a95
MC		 894static inline ulong kvmppc_get_ea_indexed(struct kvm_vcpu *vcpu, int ra, int rb)
895{
896 ulong ea;
8823a8fd 897 ulong msr_64bit = 0;
7cdd7a95
MC		 898
899 ea = kvmppc_get_gpr(vcpu, rb);
900 if (ra)
901 ea += kvmppc_get_gpr(vcpu, ra);
902
8823a8fd
MC		 903#if defined(CONFIG_PPC_BOOK3E_64)
904 msr_64bit = MSR_CM;
905#elif defined(CONFIG_PPC_BOOK3S_64)
906 msr_64bit = MSR_SF;
907#endif
908
5deb8e7a 909 if (!(kvmppc_get_msr(vcpu) & msr_64bit))
8823a8fd
MC		 910 ea = (uint32_t)ea;
911
7cdd7a95
MC		 912 return ea;
913}
914
54695c30
BH		 915extern void xics_wake_cpu(int cpu);
916
bbf45ba5 917#endif /* __POWERPC_KVM_PPC_H__ */
Linux 6.x block layer and io_uring tree(s)