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Linux kernel mirror (for testing)
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linux
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 *
4 * Copyright IBM Corp. 2008
5 *
6 * Authors: Hollis Blanchard <hollisb@us.ibm.com>
7 */
8
9#ifndef __POWERPC_KVM_PPC_H__
10#define __POWERPC_KVM_PPC_H__
11
12/* This file exists just so we can dereference kvm_vcpu, avoiding nested header
13 * dependencies. */
14
15#include <linux/mutex.h>
16#include <linux/timer.h>
17#include <linux/types.h>
18#include <linux/kvm_types.h>
19#include <linux/kvm_host.h>
20#include <linux/bug.h>
21#ifdef CONFIG_PPC_BOOK3S
22#include <asm/kvm_book3s.h>
23#else
24#include <asm/kvm_booke.h>
25#endif
26#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
27#include <asm/paca.h>
28#include <asm/xive.h>
29#include <asm/cpu_has_feature.h>
30#endif
31
32/*
33 * KVMPPC_INST_SW_BREAKPOINT is debug Instruction
34 * for supporting software breakpoint.
35 */
36#define KVMPPC_INST_SW_BREAKPOINT 0x00dddd00
37
38enum emulation_result {
39 EMULATE_DONE, /* no further processing */
40 EMULATE_DO_MMIO, /* kvm_run filled with MMIO request */
41 EMULATE_FAIL, /* can't emulate this instruction */
42 EMULATE_AGAIN, /* something went wrong. go again */
43 EMULATE_EXIT_USER, /* emulation requires exit to user-space */
44};
45
46enum instruction_fetch_type {
47 INST_GENERIC,
48 INST_SC, /* system call */
49};
50
51enum xlate_instdata {
52 XLATE_INST, /* translate instruction address */
53 XLATE_DATA /* translate data address */
54};
55
56enum xlate_readwrite {
57 XLATE_READ, /* check for read permissions */
58 XLATE_WRITE /* check for write permissions */
59};
60
61extern int kvmppc_vcpu_run(struct kvm_vcpu *vcpu);
62extern int __kvmppc_vcpu_run(struct kvm_vcpu *vcpu);
63extern void kvmppc_handler_highmem(void);
64
65extern void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu);
66extern int kvmppc_handle_load(struct kvm_vcpu *vcpu,
67 unsigned int rt, unsigned int bytes,
68 int is_default_endian);
69extern int kvmppc_handle_loads(struct kvm_vcpu *vcpu,
70 unsigned int rt, unsigned int bytes,
71 int is_default_endian);
72extern int kvmppc_handle_vsx_load(struct kvm_vcpu *vcpu,
73 unsigned int rt, unsigned int bytes,
74 int is_default_endian, int mmio_sign_extend);
75extern int kvmppc_handle_vmx_load(struct kvm_vcpu *vcpu,
76 unsigned int rt, unsigned int bytes, int is_default_endian);
77extern int kvmppc_handle_vmx_store(struct kvm_vcpu *vcpu,
78 unsigned int rs, unsigned int bytes, int is_default_endian);
79extern int kvmppc_handle_store(struct kvm_vcpu *vcpu,
80 u64 val, unsigned int bytes,
81 int is_default_endian);
82extern int kvmppc_handle_vsx_store(struct kvm_vcpu *vcpu,
83 int rs, unsigned int bytes,
84 int is_default_endian);
85
86extern int kvmppc_load_last_inst(struct kvm_vcpu *vcpu,
87 enum instruction_fetch_type type, u32 *inst);
88
89extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
90 bool data);
91extern int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
92 bool data);
93extern int kvmppc_emulate_instruction(struct kvm_vcpu *vcpu);
94extern int kvmppc_emulate_loadstore(struct kvm_vcpu *vcpu);
95extern int kvmppc_emulate_mmio(struct kvm_vcpu *vcpu);
96extern void kvmppc_emulate_dec(struct kvm_vcpu *vcpu);
97extern u32 kvmppc_get_dec(struct kvm_vcpu *vcpu, u64 tb);
98extern void kvmppc_decrementer_func(struct kvm_vcpu *vcpu);
99extern int kvmppc_sanity_check(struct kvm_vcpu *vcpu);
100extern int kvmppc_subarch_vcpu_init(struct kvm_vcpu *vcpu);
101extern void kvmppc_subarch_vcpu_uninit(struct kvm_vcpu *vcpu);
102
103/* Core-specific hooks */
104
105extern void kvmppc_mmu_map(struct kvm_vcpu *vcpu, u64 gvaddr, gpa_t gpaddr,
106 unsigned int gtlb_idx);
107extern void kvmppc_mmu_priv_switch(struct kvm_vcpu *vcpu, int usermode);
108extern void kvmppc_mmu_switch_pid(struct kvm_vcpu *vcpu, u32 pid);
109extern int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
110extern int kvmppc_mmu_itlb_index(struct kvm_vcpu *vcpu, gva_t eaddr);
111extern gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int gtlb_index,
112 gva_t eaddr);
113extern void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu);
114extern void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu);
115extern int kvmppc_xlate(struct kvm_vcpu *vcpu, ulong eaddr,
116 enum xlate_instdata xlid, enum xlate_readwrite xlrw,
117 struct kvmppc_pte *pte);
118
119extern int kvmppc_core_vcpu_create(struct kvm_vcpu *vcpu);
120extern void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu);
121extern int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu);
122extern int kvmppc_core_check_processor_compat(void);
123extern int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
124 struct kvm_translation *tr);
125
126extern void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
127extern void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu);
128
129extern int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu);
130extern int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu);
131extern void kvmppc_core_queue_machine_check(struct kvm_vcpu *vcpu, ulong flags);
132extern void kvmppc_core_queue_syscall(struct kvm_vcpu *vcpu);
133extern void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags);
134extern void kvmppc_core_queue_fpunavail(struct kvm_vcpu *vcpu);
135extern void kvmppc_core_queue_vec_unavail(struct kvm_vcpu *vcpu);
136extern void kvmppc_core_queue_vsx_unavail(struct kvm_vcpu *vcpu);
137extern void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu);
138extern void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu);
139extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,
140 struct kvm_interrupt *irq);
141extern void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu);
142extern void kvmppc_core_queue_dtlb_miss(struct kvm_vcpu *vcpu, ulong dear_flags,
143 ulong esr_flags);
144extern void kvmppc_core_queue_data_storage(struct kvm_vcpu *vcpu,
145 ulong dear_flags,
146 ulong esr_flags);
147extern void kvmppc_core_queue_itlb_miss(struct kvm_vcpu *vcpu);
148extern void kvmppc_core_queue_inst_storage(struct kvm_vcpu *vcpu,
149 ulong esr_flags);
150extern void kvmppc_core_flush_tlb(struct kvm_vcpu *vcpu);
151extern int kvmppc_core_check_requests(struct kvm_vcpu *vcpu);
152
153extern int kvmppc_booke_init(void);
154extern void kvmppc_booke_exit(void);
155
156extern void kvmppc_core_destroy_mmu(struct kvm_vcpu *vcpu);
157extern int kvmppc_kvm_pv(struct kvm_vcpu *vcpu);
158extern void kvmppc_map_magic(struct kvm_vcpu *vcpu);
159
160extern int kvmppc_allocate_hpt(struct kvm_hpt_info *info, u32 order);
161extern void kvmppc_set_hpt(struct kvm *kvm, struct kvm_hpt_info *info);
162extern long kvmppc_alloc_reset_hpt(struct kvm *kvm, int order);
163extern void kvmppc_free_hpt(struct kvm_hpt_info *info);
164extern void kvmppc_rmap_reset(struct kvm *kvm);
165extern long kvmppc_prepare_vrma(struct kvm *kvm,
166 struct kvm_userspace_memory_region *mem);
167extern void kvmppc_map_vrma(struct kvm_vcpu *vcpu,
168 struct kvm_memory_slot *memslot, unsigned long porder);
169extern int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu);
170extern long kvm_spapr_tce_attach_iommu_group(struct kvm *kvm, int tablefd,
171 struct iommu_group *grp);
172extern void kvm_spapr_tce_release_iommu_group(struct kvm *kvm,
173 struct iommu_group *grp);
174extern int kvmppc_switch_mmu_to_hpt(struct kvm *kvm);
175extern int kvmppc_switch_mmu_to_radix(struct kvm *kvm);
176extern void kvmppc_setup_partition_table(struct kvm *kvm);
177
178extern long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm,
179 struct kvm_create_spapr_tce_64 *args);
180extern struct kvmppc_spapr_tce_table *kvmppc_find_table(
181 struct kvm *kvm, unsigned long liobn);
182#define kvmppc_ioba_validate(stt, ioba, npages) \
183 (iommu_tce_check_ioba((stt)->page_shift, (stt)->offset, \
184 (stt)->size, (ioba), (npages)) ? \
185 H_PARAMETER : H_SUCCESS)
186extern long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
187 unsigned long ioba, unsigned long tce);
188extern long kvmppc_h_put_tce_indirect(struct kvm_vcpu *vcpu,
189 unsigned long liobn, unsigned long ioba,
190 unsigned long tce_list, unsigned long npages);
191extern long kvmppc_h_stuff_tce(struct kvm_vcpu *vcpu,
192 unsigned long liobn, unsigned long ioba,
193 unsigned long tce_value, unsigned long npages);
194extern long kvmppc_h_get_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
195 unsigned long ioba);
196extern struct page *kvm_alloc_hpt_cma(unsigned long nr_pages);
197extern void kvm_free_hpt_cma(struct page *page, unsigned long nr_pages);
198extern int kvmppc_core_init_vm(struct kvm *kvm);
199extern void kvmppc_core_destroy_vm(struct kvm *kvm);
200extern void kvmppc_core_free_memslot(struct kvm *kvm,
201 struct kvm_memory_slot *slot);
202extern int kvmppc_core_prepare_memory_region(struct kvm *kvm,
203 const struct kvm_memory_slot *old,
204 struct kvm_memory_slot *new,
205 enum kvm_mr_change change);
206extern void kvmppc_core_commit_memory_region(struct kvm *kvm,
207 struct kvm_memory_slot *old,
208 const struct kvm_memory_slot *new,
209 enum kvm_mr_change change);
210extern int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm,
211 struct kvm_ppc_smmu_info *info);
212extern void kvmppc_core_flush_memslot(struct kvm *kvm,
213 struct kvm_memory_slot *memslot);
214
215extern int kvmppc_bookehv_init(void);
216extern void kvmppc_bookehv_exit(void);
217
218extern int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu);
219
220extern int kvm_vm_ioctl_get_htab_fd(struct kvm *kvm, struct kvm_get_htab_fd *);
221extern long kvm_vm_ioctl_resize_hpt_prepare(struct kvm *kvm,
222 struct kvm_ppc_resize_hpt *rhpt);
223extern long kvm_vm_ioctl_resize_hpt_commit(struct kvm *kvm,
224 struct kvm_ppc_resize_hpt *rhpt);
225
226int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq);
227
228extern int kvm_vm_ioctl_rtas_define_token(struct kvm *kvm, void __user *argp);
229extern int kvmppc_rtas_hcall(struct kvm_vcpu *vcpu);
230extern void kvmppc_rtas_tokens_free(struct kvm *kvm);
231
232extern int kvmppc_xics_set_xive(struct kvm *kvm, u32 irq, u32 server,
233 u32 priority);
234extern int kvmppc_xics_get_xive(struct kvm *kvm, u32 irq, u32 *server,
235 u32 *priority);
236extern int kvmppc_xics_int_on(struct kvm *kvm, u32 irq);
237extern int kvmppc_xics_int_off(struct kvm *kvm, u32 irq);
238
239void kvmppc_core_dequeue_debug(struct kvm_vcpu *vcpu);
240void kvmppc_core_queue_debug(struct kvm_vcpu *vcpu);
241
242union kvmppc_one_reg {
243 u32 wval;
244 u64 dval;
245 vector128 vval;
246 u64 vsxval[2];
247 u32 vsx32val[4];
248 u16 vsx16val[8];
249 u8 vsx8val[16];
250 struct {
251 u64 addr;
252 u64 length;
253 } vpaval;
254 u64 xive_timaval[2];
255};
256
257struct kvmppc_ops {
258 struct module *owner;
259 int (*get_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
260 int (*set_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
261 int (*get_one_reg)(struct kvm_vcpu *vcpu, u64 id,
262 union kvmppc_one_reg *val);
263 int (*set_one_reg)(struct kvm_vcpu *vcpu, u64 id,
264 union kvmppc_one_reg *val);
265 void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
266 void (*vcpu_put)(struct kvm_vcpu *vcpu);
267 void (*inject_interrupt)(struct kvm_vcpu *vcpu, int vec, u64 srr1_flags);
268 void (*set_msr)(struct kvm_vcpu *vcpu, u64 msr);
269 int (*vcpu_run)(struct kvm_vcpu *vcpu);
270 int (*vcpu_create)(struct kvm_vcpu *vcpu);
271 void (*vcpu_free)(struct kvm_vcpu *vcpu);
272 int (*check_requests)(struct kvm_vcpu *vcpu);
273 int (*get_dirty_log)(struct kvm *kvm, struct kvm_dirty_log *log);
274 void (*flush_memslot)(struct kvm *kvm, struct kvm_memory_slot *memslot);
275 int (*prepare_memory_region)(struct kvm *kvm,
276 const struct kvm_memory_slot *old,
277 struct kvm_memory_slot *new,
278 enum kvm_mr_change change);
279 void (*commit_memory_region)(struct kvm *kvm,
280 struct kvm_memory_slot *old,
281 const struct kvm_memory_slot *new,
282 enum kvm_mr_change change);
283 bool (*unmap_gfn_range)(struct kvm *kvm, struct kvm_gfn_range *range);
284 bool (*age_gfn)(struct kvm *kvm, struct kvm_gfn_range *range);
285 bool (*test_age_gfn)(struct kvm *kvm, struct kvm_gfn_range *range);
286 bool (*set_spte_gfn)(struct kvm *kvm, struct kvm_gfn_range *range);
287 void (*free_memslot)(struct kvm_memory_slot *slot);
288 int (*init_vm)(struct kvm *kvm);
289 void (*destroy_vm)(struct kvm *kvm);
290 int (*get_smmu_info)(struct kvm *kvm, struct kvm_ppc_smmu_info *info);
291 int (*emulate_op)(struct kvm_vcpu *vcpu,
292 unsigned int inst, int *advance);
293 int (*emulate_mtspr)(struct kvm_vcpu *vcpu, int sprn, ulong spr_val);
294 int (*emulate_mfspr)(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val);
295 void (*fast_vcpu_kick)(struct kvm_vcpu *vcpu);
296 long (*arch_vm_ioctl)(struct file *filp, unsigned int ioctl,
297 unsigned long arg);
298 int (*hcall_implemented)(unsigned long hcall);
299 int (*irq_bypass_add_producer)(struct irq_bypass_consumer *,
300 struct irq_bypass_producer *);
301 void (*irq_bypass_del_producer)(struct irq_bypass_consumer *,
302 struct irq_bypass_producer *);
303 int (*configure_mmu)(struct kvm *kvm, struct kvm_ppc_mmuv3_cfg *cfg);
304 int (*get_rmmu_info)(struct kvm *kvm, struct kvm_ppc_rmmu_info *info);
305 int (*set_smt_mode)(struct kvm *kvm, unsigned long mode,
306 unsigned long flags);
307 void (*giveup_ext)(struct kvm_vcpu *vcpu, ulong msr);
308 int (*enable_nested)(struct kvm *kvm);
309 int (*load_from_eaddr)(struct kvm_vcpu *vcpu, ulong *eaddr, void *ptr,
310 int size);
311 int (*store_to_eaddr)(struct kvm_vcpu *vcpu, ulong *eaddr, void *ptr,
312 int size);
313 int (*enable_svm)(struct kvm *kvm);
314 int (*svm_off)(struct kvm *kvm);
315 int (*enable_dawr1)(struct kvm *kvm);
316 bool (*hash_v3_possible)(void);
317};
318
319extern struct kvmppc_ops *kvmppc_hv_ops;
320extern struct kvmppc_ops *kvmppc_pr_ops;
321
322static inline int kvmppc_get_last_inst(struct kvm_vcpu *vcpu,
323 enum instruction_fetch_type type, u32 *inst)
324{
325 int ret = EMULATE_DONE;
326 u32 fetched_inst;
327
328 /* Load the instruction manually if it failed to do so in the
329 * exit path */
330 if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
331 ret = kvmppc_load_last_inst(vcpu, type, &vcpu->arch.last_inst);
332
333 /* Write fetch_failed unswapped if the fetch failed */
334 if (ret == EMULATE_DONE)
335 fetched_inst = kvmppc_need_byteswap(vcpu) ?
336 swab32(vcpu->arch.last_inst) :
337 vcpu->arch.last_inst;
338 else
339 fetched_inst = vcpu->arch.last_inst;
340
341 *inst = fetched_inst;
342 return ret;
343}
344
345static inline bool is_kvmppc_hv_enabled(struct kvm *kvm)
346{
347 return kvm->arch.kvm_ops == kvmppc_hv_ops;
348}
349
350extern int kvmppc_hwrng_present(void);
351
352/*
353 * Cuts out inst bits with ordering according to spec.
354 * That means the leftmost bit is zero. All given bits are included.
355 */
356static inline u32 kvmppc_get_field(u64 inst, int msb, int lsb)
357{
358 u32 r;
359 u32 mask;
360
361 BUG_ON(msb > lsb);
362
363 mask = (1 << (lsb - msb + 1)) - 1;
364 r = (inst >> (63 - lsb)) & mask;
365
366 return r;
367}
368
369/*
370 * Replaces inst bits with ordering according to spec.
371 */
372static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value)
373{
374 u32 r;
375 u32 mask;
376
377 BUG_ON(msb > lsb);
378
379 mask = ((1 << (lsb - msb + 1)) - 1) << (63 - lsb);
380 r = (inst & ~mask) | ((value << (63 - lsb)) & mask);
381
382 return r;
383}
384
385#define one_reg_size(id) \
386 (1ul << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
387
388#define get_reg_val(id, reg) ({ \
389 union kvmppc_one_reg __u; \
390 switch (one_reg_size(id)) { \
391 case 4: __u.wval = (reg); break; \
392 case 8: __u.dval = (reg); break; \
393 default: BUG(); \
394 } \
395 __u; \
396})
397
398
399#define set_reg_val(id, val) ({ \
400 u64 __v; \
401 switch (one_reg_size(id)) { \
402 case 4: __v = (val).wval; break; \
403 case 8: __v = (val).dval; break; \
404 default: BUG(); \
405 } \
406 __v; \
407})
408
409int kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
410int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
411
412int kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
413int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
414
415int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
416int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
417int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
418int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *);
419
420void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid);
421
422struct openpic;
423
424#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
425extern void kvm_cma_reserve(void) __init;
426static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
427{
428 paca_ptrs[cpu]->kvm_hstate.xics_phys = (void __iomem *)addr;
429}
430
431static inline void kvmppc_set_xive_tima(int cpu,
432 unsigned long phys_addr,
433 void __iomem *virt_addr)
434{
435 paca_ptrs[cpu]->kvm_hstate.xive_tima_phys = (void __iomem *)phys_addr;
436 paca_ptrs[cpu]->kvm_hstate.xive_tima_virt = virt_addr;
437}
438
439static inline u32 kvmppc_get_xics_latch(void)
440{
441 u32 xirr;
442
443 xirr = get_paca()->kvm_hstate.saved_xirr;
444 get_paca()->kvm_hstate.saved_xirr = 0;
445 return xirr;
446}
447
448/*
449 * To avoid the need to unnecessarily exit fully to the host kernel, an IPI to
450 * a CPU thread that's running/napping inside of a guest is by default regarded
451 * as a request to wake the CPU (if needed) and continue execution within the
452 * guest, potentially to process new state like externally-generated
453 * interrupts or IPIs sent from within the guest itself (e.g. H_PROD/H_IPI).
454 *
455 * To force an exit to the host kernel, kvmppc_set_host_ipi() must be called
456 * prior to issuing the IPI to set the corresponding 'host_ipi' flag in the
457 * target CPU's PACA. To avoid unnecessary exits to the host, this flag should
458 * be immediately cleared via kvmppc_clear_host_ipi() by the IPI handler on
459 * the receiving side prior to processing the IPI work.
460 *
461 * NOTE:
462 *
463 * We currently issue an smp_mb() at the beginning of kvmppc_set_host_ipi().
464 * This is to guard against sequences such as the following:
465 *
466 * CPU
467 * X: smp_muxed_ipi_set_message():
468 * X: smp_mb()
469 * X: message[RESCHEDULE] = 1
470 * X: doorbell_global_ipi(42):
471 * X: kvmppc_set_host_ipi(42)
472 * X: ppc_msgsnd_sync()/smp_mb()
473 * X: ppc_msgsnd() -> 42
474 * 42: doorbell_exception(): // from CPU X
475 * 42: ppc_msgsync()
476 * 105: smp_muxed_ipi_set_message():
477 * 105: smb_mb()
478 * // STORE DEFERRED DUE TO RE-ORDERING
479 * --105: message[CALL_FUNCTION] = 1
480 * | 105: doorbell_global_ipi(42):
481 * | 105: kvmppc_set_host_ipi(42)
482 * | 42: kvmppc_clear_host_ipi(42)
483 * | 42: smp_ipi_demux_relaxed()
484 * | 42: // returns to executing guest
485 * | // RE-ORDERED STORE COMPLETES
486 * ->105: message[CALL_FUNCTION] = 1
487 * 105: ppc_msgsnd_sync()/smp_mb()
488 * 105: ppc_msgsnd() -> 42
489 * 42: local_paca->kvm_hstate.host_ipi == 0 // IPI ignored
490 * 105: // hangs waiting on 42 to process messages/call_single_queue
491 *
492 * We also issue an smp_mb() at the end of kvmppc_clear_host_ipi(). This is
493 * to guard against sequences such as the following (as well as to create
494 * a read-side pairing with the barrier in kvmppc_set_host_ipi()):
495 *
496 * CPU
497 * X: smp_muxed_ipi_set_message():
498 * X: smp_mb()
499 * X: message[RESCHEDULE] = 1
500 * X: doorbell_global_ipi(42):
501 * X: kvmppc_set_host_ipi(42)
502 * X: ppc_msgsnd_sync()/smp_mb()
503 * X: ppc_msgsnd() -> 42
504 * 42: doorbell_exception(): // from CPU X
505 * 42: ppc_msgsync()
506 * // STORE DEFERRED DUE TO RE-ORDERING
507 * -- 42: kvmppc_clear_host_ipi(42)
508 * | 42: smp_ipi_demux_relaxed()
509 * | 105: smp_muxed_ipi_set_message():
510 * | 105: smb_mb()
511 * | 105: message[CALL_FUNCTION] = 1
512 * | 105: doorbell_global_ipi(42):
513 * | 105: kvmppc_set_host_ipi(42)
514 * | // RE-ORDERED STORE COMPLETES
515 * -> 42: kvmppc_clear_host_ipi(42)
516 * 42: // returns to executing guest
517 * 105: ppc_msgsnd_sync()/smp_mb()
518 * 105: ppc_msgsnd() -> 42
519 * 42: local_paca->kvm_hstate.host_ipi == 0 // IPI ignored
520 * 105: // hangs waiting on 42 to process messages/call_single_queue
521 */
522static inline void kvmppc_set_host_ipi(int cpu)
523{
524 /*
525 * order stores of IPI messages vs. setting of host_ipi flag
526 *
527 * pairs with the barrier in kvmppc_clear_host_ipi()
528 */
529 smp_mb();
530 paca_ptrs[cpu]->kvm_hstate.host_ipi = 1;
531}
532
533static inline void kvmppc_clear_host_ipi(int cpu)
534{
535 paca_ptrs[cpu]->kvm_hstate.host_ipi = 0;
536 /*
537 * order clearing of host_ipi flag vs. processing of IPI messages
538 *
539 * pairs with the barrier in kvmppc_set_host_ipi()
540 */
541 smp_mb();
542}
543
544static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
545{
546 vcpu->kvm->arch.kvm_ops->fast_vcpu_kick(vcpu);
547}
548
549extern void kvm_hv_vm_activated(void);
550extern void kvm_hv_vm_deactivated(void);
551extern bool kvm_hv_mode_active(void);
552
553extern void kvmppc_check_need_tlb_flush(struct kvm *kvm, int pcpu);
554
555#else
556static inline void __init kvm_cma_reserve(void)
557{}
558
559static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
560{}
561
562static inline void kvmppc_set_xive_tima(int cpu,
563 unsigned long phys_addr,
564 void __iomem *virt_addr)
565{}
566
567static inline u32 kvmppc_get_xics_latch(void)
568{
569 return 0;
570}
571
572static inline void kvmppc_set_host_ipi(int cpu)
573{}
574
575static inline void kvmppc_clear_host_ipi(int cpu)
576{}
577
578static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
579{
580 kvm_vcpu_kick(vcpu);
581}
582
583static inline bool kvm_hv_mode_active(void) { return false; }
584
585#endif
586
587#ifdef CONFIG_KVM_XICS
588static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu)
589{
590 return vcpu->arch.irq_type == KVMPPC_IRQ_XICS;
591}
592
593static inline struct kvmppc_passthru_irqmap *kvmppc_get_passthru_irqmap(
594 struct kvm *kvm)
595{
596 if (kvm && kvm_irq_bypass)
597 return kvm->arch.pimap;
598 return NULL;
599}
600
601extern void kvmppc_alloc_host_rm_ops(void);
602extern void kvmppc_free_host_rm_ops(void);
603extern void kvmppc_free_pimap(struct kvm *kvm);
604extern int kvmppc_xics_rm_complete(struct kvm_vcpu *vcpu, u32 hcall);
605extern void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu);
606extern int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd);
607extern int kvmppc_xive_xics_hcall(struct kvm_vcpu *vcpu, u32 req);
608extern u64 kvmppc_xics_get_icp(struct kvm_vcpu *vcpu);
609extern int kvmppc_xics_set_icp(struct kvm_vcpu *vcpu, u64 icpval);
610extern int kvmppc_xics_connect_vcpu(struct kvm_device *dev,
611 struct kvm_vcpu *vcpu, u32 cpu);
612extern void kvmppc_xics_ipi_action(void);
613extern void kvmppc_xics_set_mapped(struct kvm *kvm, unsigned long guest_irq,
614 unsigned long host_irq);
615extern void kvmppc_xics_clr_mapped(struct kvm *kvm, unsigned long guest_irq,
616 unsigned long host_irq);
617extern long kvmppc_deliver_irq_passthru(struct kvm_vcpu *vcpu, __be32 xirr,
618 struct kvmppc_irq_map *irq_map,
619 struct kvmppc_passthru_irqmap *pimap,
620 bool *again);
621
622extern int kvmppc_xics_set_irq(struct kvm *kvm, int irq_source_id, u32 irq,
623 int level, bool line_status);
624
625extern int h_ipi_redirect;
626#else
627static inline struct kvmppc_passthru_irqmap *kvmppc_get_passthru_irqmap(
628 struct kvm *kvm)
629 { return NULL; }
630static inline void kvmppc_alloc_host_rm_ops(void) {}
631static inline void kvmppc_free_host_rm_ops(void) {}
632static inline void kvmppc_free_pimap(struct kvm *kvm) {}
633static inline int kvmppc_xics_rm_complete(struct kvm_vcpu *vcpu, u32 hcall)
634 { return 0; }
635static inline int kvmppc_xics_enabled(struct kvm_vcpu *vcpu)
636 { return 0; }
637static inline void kvmppc_xics_free_icp(struct kvm_vcpu *vcpu) { }
638static inline int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 cmd)
639 { return 0; }
640static inline int kvmppc_xive_xics_hcall(struct kvm_vcpu *vcpu, u32 req)
641 { return 0; }
642#endif
643
644#ifdef CONFIG_KVM_XIVE
645/*
646 * Below the first "xive" is the "eXternal Interrupt Virtualization Engine"
647 * ie. P9 new interrupt controller, while the second "xive" is the legacy
648 * "eXternal Interrupt Vector Entry" which is the configuration of an
649 * interrupt on the "xics" interrupt controller on P8 and earlier. Those
650 * two function consume or produce a legacy "XIVE" state from the
651 * new "XIVE" interrupt controller.
652 */
653extern int kvmppc_xive_set_xive(struct kvm *kvm, u32 irq, u32 server,
654 u32 priority);
655extern int kvmppc_xive_get_xive(struct kvm *kvm, u32 irq, u32 *server,
656 u32 *priority);
657extern int kvmppc_xive_int_on(struct kvm *kvm, u32 irq);
658extern int kvmppc_xive_int_off(struct kvm *kvm, u32 irq);
659
660extern int kvmppc_xive_connect_vcpu(struct kvm_device *dev,
661 struct kvm_vcpu *vcpu, u32 cpu);
662extern void kvmppc_xive_cleanup_vcpu(struct kvm_vcpu *vcpu);
663extern int kvmppc_xive_set_mapped(struct kvm *kvm, unsigned long guest_irq,
664 unsigned long host_irq);
665extern int kvmppc_xive_clr_mapped(struct kvm *kvm, unsigned long guest_irq,
666 unsigned long host_irq);
667extern u64 kvmppc_xive_get_icp(struct kvm_vcpu *vcpu);
668extern int kvmppc_xive_set_icp(struct kvm_vcpu *vcpu, u64 icpval);
669
670extern int kvmppc_xive_set_irq(struct kvm *kvm, int irq_source_id, u32 irq,
671 int level, bool line_status);
672extern void kvmppc_xive_push_vcpu(struct kvm_vcpu *vcpu);
673extern void kvmppc_xive_pull_vcpu(struct kvm_vcpu *vcpu);
674extern void kvmppc_xive_rearm_escalation(struct kvm_vcpu *vcpu);
675
676static inline int kvmppc_xive_enabled(struct kvm_vcpu *vcpu)
677{
678 return vcpu->arch.irq_type == KVMPPC_IRQ_XIVE;
679}
680
681extern int kvmppc_xive_native_connect_vcpu(struct kvm_device *dev,
682 struct kvm_vcpu *vcpu, u32 cpu);
683extern void kvmppc_xive_native_cleanup_vcpu(struct kvm_vcpu *vcpu);
684extern int kvmppc_xive_native_get_vp(struct kvm_vcpu *vcpu,
685 union kvmppc_one_reg *val);
686extern int kvmppc_xive_native_set_vp(struct kvm_vcpu *vcpu,
687 union kvmppc_one_reg *val);
688extern bool kvmppc_xive_native_supported(void);
689
690#else
691static inline int kvmppc_xive_set_xive(struct kvm *kvm, u32 irq, u32 server,
692 u32 priority) { return -1; }
693static inline int kvmppc_xive_get_xive(struct kvm *kvm, u32 irq, u32 *server,
694 u32 *priority) { return -1; }
695static inline int kvmppc_xive_int_on(struct kvm *kvm, u32 irq) { return -1; }
696static inline int kvmppc_xive_int_off(struct kvm *kvm, u32 irq) { return -1; }
697
698static inline int kvmppc_xive_connect_vcpu(struct kvm_device *dev,
699 struct kvm_vcpu *vcpu, u32 cpu) { return -EBUSY; }
700static inline void kvmppc_xive_cleanup_vcpu(struct kvm_vcpu *vcpu) { }
701static inline int kvmppc_xive_set_mapped(struct kvm *kvm, unsigned long guest_irq,
702 struct irq_desc *host_desc) { return -ENODEV; }
703static inline int kvmppc_xive_clr_mapped(struct kvm *kvm, unsigned long guest_irq,
704 struct irq_desc *host_desc) { return -ENODEV; }
705static inline u64 kvmppc_xive_get_icp(struct kvm_vcpu *vcpu) { return 0; }
706static inline int kvmppc_xive_set_icp(struct kvm_vcpu *vcpu, u64 icpval) { return -ENOENT; }
707
708static inline int kvmppc_xive_set_irq(struct kvm *kvm, int irq_source_id, u32 irq,
709 int level, bool line_status) { return -ENODEV; }
710static inline void kvmppc_xive_push_vcpu(struct kvm_vcpu *vcpu) { }
711static inline void kvmppc_xive_pull_vcpu(struct kvm_vcpu *vcpu) { }
712static inline void kvmppc_xive_rearm_escalation(struct kvm_vcpu *vcpu) { }
713
714static inline int kvmppc_xive_enabled(struct kvm_vcpu *vcpu)
715 { return 0; }
716static inline int kvmppc_xive_native_connect_vcpu(struct kvm_device *dev,
717 struct kvm_vcpu *vcpu, u32 cpu) { return -EBUSY; }
718static inline void kvmppc_xive_native_cleanup_vcpu(struct kvm_vcpu *vcpu) { }
719static inline int kvmppc_xive_native_get_vp(struct kvm_vcpu *vcpu,
720 union kvmppc_one_reg *val)
721{ return 0; }
722static inline int kvmppc_xive_native_set_vp(struct kvm_vcpu *vcpu,
723 union kvmppc_one_reg *val)
724{ return -ENOENT; }
725
726#endif /* CONFIG_KVM_XIVE */
727
728#if defined(CONFIG_PPC_POWERNV) && defined(CONFIG_KVM_BOOK3S_64_HANDLER)
729static inline bool xics_on_xive(void)
730{
731 return xive_enabled() && cpu_has_feature(CPU_FTR_HVMODE);
732}
733#else
734static inline bool xics_on_xive(void)
735{
736 return false;
737}
738#endif
739
740/*
741 * Prototypes for functions called only from assembler code.
742 * Having prototypes reduces sparse errors.
743 */
744long kvmppc_rm_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
745 unsigned long ioba, unsigned long tce);
746long kvmppc_rm_h_put_tce_indirect(struct kvm_vcpu *vcpu,
747 unsigned long liobn, unsigned long ioba,
748 unsigned long tce_list, unsigned long npages);
749long kvmppc_rm_h_stuff_tce(struct kvm_vcpu *vcpu,
750 unsigned long liobn, unsigned long ioba,
751 unsigned long tce_value, unsigned long npages);
752long int kvmppc_rm_h_confer(struct kvm_vcpu *vcpu, int target,
753 unsigned int yield_count);
754long kvmppc_rm_h_random(struct kvm_vcpu *vcpu);
755void kvmhv_commence_exit(int trap);
756void kvmppc_realmode_machine_check(struct kvm_vcpu *vcpu);
757void kvmppc_subcore_enter_guest(void);
758void kvmppc_subcore_exit_guest(void);
759long kvmppc_realmode_hmi_handler(void);
760long kvmppc_p9_realmode_hmi_handler(struct kvm_vcpu *vcpu);
761long kvmppc_h_enter(struct kvm_vcpu *vcpu, unsigned long flags,
762 long pte_index, unsigned long pteh, unsigned long ptel);
763long kvmppc_h_remove(struct kvm_vcpu *vcpu, unsigned long flags,
764 unsigned long pte_index, unsigned long avpn);
765long kvmppc_h_bulk_remove(struct kvm_vcpu *vcpu);
766long kvmppc_h_protect(struct kvm_vcpu *vcpu, unsigned long flags,
767 unsigned long pte_index, unsigned long avpn);
768long kvmppc_h_read(struct kvm_vcpu *vcpu, unsigned long flags,
769 unsigned long pte_index);
770long kvmppc_h_clear_ref(struct kvm_vcpu *vcpu, unsigned long flags,
771 unsigned long pte_index);
772long kvmppc_h_clear_mod(struct kvm_vcpu *vcpu, unsigned long flags,
773 unsigned long pte_index);
774long kvmppc_rm_h_page_init(struct kvm_vcpu *vcpu, unsigned long flags,
775 unsigned long dest, unsigned long src);
776long kvmppc_hpte_hv_fault(struct kvm_vcpu *vcpu, unsigned long addr,
777 unsigned long slb_v, unsigned int status, bool data);
778unsigned long kvmppc_rm_h_xirr(struct kvm_vcpu *vcpu);
779unsigned long kvmppc_rm_h_xirr_x(struct kvm_vcpu *vcpu);
780unsigned long kvmppc_rm_h_ipoll(struct kvm_vcpu *vcpu, unsigned long server);
781int kvmppc_rm_h_ipi(struct kvm_vcpu *vcpu, unsigned long server,
782 unsigned long mfrr);
783int kvmppc_rm_h_cppr(struct kvm_vcpu *vcpu, unsigned long cppr);
784int kvmppc_rm_h_eoi(struct kvm_vcpu *vcpu, unsigned long xirr);
785void kvmppc_guest_entry_inject_int(struct kvm_vcpu *vcpu);
786
787/*
788 * Host-side operations we want to set up while running in real
789 * mode in the guest operating on the xics.
790 * Currently only VCPU wakeup is supported.
791 */
792
793union kvmppc_rm_state {
794 unsigned long raw;
795 struct {
796 u32 in_host;
797 u32 rm_action;
798 };
799};
800
801struct kvmppc_host_rm_core {
802 union kvmppc_rm_state rm_state;
803 void *rm_data;
804 char pad[112];
805};
806
807struct kvmppc_host_rm_ops {
808 struct kvmppc_host_rm_core *rm_core;
809 void (*vcpu_kick)(struct kvm_vcpu *vcpu);
810};
811
812extern struct kvmppc_host_rm_ops *kvmppc_host_rm_ops_hv;
813
814static inline unsigned long kvmppc_get_epr(struct kvm_vcpu *vcpu)
815{
816#ifdef CONFIG_KVM_BOOKE_HV
817 return mfspr(SPRN_GEPR);
818#elif defined(CONFIG_BOOKE)
819 return vcpu->arch.epr;
820#else
821 return 0;
822#endif
823}
824
825static inline void kvmppc_set_epr(struct kvm_vcpu *vcpu, u32 epr)
826{
827#ifdef CONFIG_KVM_BOOKE_HV
828 mtspr(SPRN_GEPR, epr);
829#elif defined(CONFIG_BOOKE)
830 vcpu->arch.epr = epr;
831#endif
832}
833
834#ifdef CONFIG_KVM_MPIC
835
836void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu);
837int kvmppc_mpic_connect_vcpu(struct kvm_device *dev, struct kvm_vcpu *vcpu,
838 u32 cpu);
839void kvmppc_mpic_disconnect_vcpu(struct openpic *opp, struct kvm_vcpu *vcpu);
840
841#else
842
843static inline void kvmppc_mpic_set_epr(struct kvm_vcpu *vcpu)
844{
845}
846
847static inline int kvmppc_mpic_connect_vcpu(struct kvm_device *dev,
848 struct kvm_vcpu *vcpu, u32 cpu)
849{
850 return -EINVAL;
851}
852
853static inline void kvmppc_mpic_disconnect_vcpu(struct openpic *opp,
854 struct kvm_vcpu *vcpu)
855{
856}
857
858#endif /* CONFIG_KVM_MPIC */
859
860int kvm_vcpu_ioctl_config_tlb(struct kvm_vcpu *vcpu,
861 struct kvm_config_tlb *cfg);
862int kvm_vcpu_ioctl_dirty_tlb(struct kvm_vcpu *vcpu,
863 struct kvm_dirty_tlb *cfg);
864
865long kvmppc_alloc_lpid(void);
866void kvmppc_claim_lpid(long lpid);
867void kvmppc_free_lpid(long lpid);
868void kvmppc_init_lpid(unsigned long nr_lpids);
869
870static inline void kvmppc_mmu_flush_icache(kvm_pfn_t pfn)
871{
872 struct page *page;
873 /*
874 * We can only access pages that the kernel maps
875 * as memory. Bail out for unmapped ones.
876 */
877 if (!pfn_valid(pfn))
878 return;
879
880 /* Clear i-cache for new pages */
881 page = pfn_to_page(pfn);
882 if (!test_bit(PG_dcache_clean, &page->flags)) {
883 flush_dcache_icache_page(page);
884 set_bit(PG_dcache_clean, &page->flags);
885 }
886}
887
888/*
889 * Shared struct helpers. The shared struct can be little or big endian,
890 * depending on the guest endianness. So expose helpers to all of them.
891 */
892static inline bool kvmppc_shared_big_endian(struct kvm_vcpu *vcpu)
893{
894#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
895 /* Only Book3S_64 PR supports bi-endian for now */
896 return vcpu->arch.shared_big_endian;
897#elif defined(CONFIG_PPC_BOOK3S_64) && defined(__LITTLE_ENDIAN__)
898 /* Book3s_64 HV on little endian is always little endian */
899 return false;
900#else
901 return true;
902#endif
903}
904
905#define SPRNG_WRAPPER_GET(reg, bookehv_spr) \
906static inline ulong kvmppc_get_##reg(struct kvm_vcpu *vcpu) \
907{ \
908 return mfspr(bookehv_spr); \
909} \
910
911#define SPRNG_WRAPPER_SET(reg, bookehv_spr) \
912static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, ulong val) \
913{ \
914 mtspr(bookehv_spr, val); \
915} \
916
917#define SHARED_WRAPPER_GET(reg, size) \
918static inline u##size kvmppc_get_##reg(struct kvm_vcpu *vcpu) \
919{ \
920 if (kvmppc_shared_big_endian(vcpu)) \
921 return be##size##_to_cpu(vcpu->arch.shared->reg); \
922 else \
923 return le##size##_to_cpu(vcpu->arch.shared->reg); \
924} \
925
926#define SHARED_WRAPPER_SET(reg, size) \
927static inline void kvmppc_set_##reg(struct kvm_vcpu *vcpu, u##size val) \
928{ \
929 if (kvmppc_shared_big_endian(vcpu)) \
930 vcpu->arch.shared->reg = cpu_to_be##size(val); \
931 else \
932 vcpu->arch.shared->reg = cpu_to_le##size(val); \
933} \
934
935#define SHARED_WRAPPER(reg, size) \
936 SHARED_WRAPPER_GET(reg, size) \
937 SHARED_WRAPPER_SET(reg, size) \
938
939#define SPRNG_WRAPPER(reg, bookehv_spr) \
940 SPRNG_WRAPPER_GET(reg, bookehv_spr) \
941 SPRNG_WRAPPER_SET(reg, bookehv_spr) \
942
943#ifdef CONFIG_KVM_BOOKE_HV
944
945#define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \
946 SPRNG_WRAPPER(reg, bookehv_spr) \
947
948#else
949
950#define SHARED_SPRNG_WRAPPER(reg, size, bookehv_spr) \
951 SHARED_WRAPPER(reg, size) \
952
953#endif
954
955SHARED_WRAPPER(critical, 64)
956SHARED_SPRNG_WRAPPER(sprg0, 64, SPRN_GSPRG0)
957SHARED_SPRNG_WRAPPER(sprg1, 64, SPRN_GSPRG1)
958SHARED_SPRNG_WRAPPER(sprg2, 64, SPRN_GSPRG2)
959SHARED_SPRNG_WRAPPER(sprg3, 64, SPRN_GSPRG3)
960SHARED_SPRNG_WRAPPER(srr0, 64, SPRN_GSRR0)
961SHARED_SPRNG_WRAPPER(srr1, 64, SPRN_GSRR1)
962SHARED_SPRNG_WRAPPER(dar, 64, SPRN_GDEAR)
963SHARED_SPRNG_WRAPPER(esr, 64, SPRN_GESR)
964SHARED_WRAPPER_GET(msr, 64)
965static inline void kvmppc_set_msr_fast(struct kvm_vcpu *vcpu, u64 val)
966{
967 if (kvmppc_shared_big_endian(vcpu))
968 vcpu->arch.shared->msr = cpu_to_be64(val);
969 else
970 vcpu->arch.shared->msr = cpu_to_le64(val);
971}
972SHARED_WRAPPER(dsisr, 32)
973SHARED_WRAPPER(int_pending, 32)
974SHARED_WRAPPER(sprg4, 64)
975SHARED_WRAPPER(sprg5, 64)
976SHARED_WRAPPER(sprg6, 64)
977SHARED_WRAPPER(sprg7, 64)
978
979static inline u32 kvmppc_get_sr(struct kvm_vcpu *vcpu, int nr)
980{
981 if (kvmppc_shared_big_endian(vcpu))
982 return be32_to_cpu(vcpu->arch.shared->sr[nr]);
983 else
984 return le32_to_cpu(vcpu->arch.shared->sr[nr]);
985}
986
987static inline void kvmppc_set_sr(struct kvm_vcpu *vcpu, int nr, u32 val)
988{
989 if (kvmppc_shared_big_endian(vcpu))
990 vcpu->arch.shared->sr[nr] = cpu_to_be32(val);
991 else
992 vcpu->arch.shared->sr[nr] = cpu_to_le32(val);
993}
994
995/*
996 * Please call after prepare_to_enter. This function puts the lazy ee and irq
997 * disabled tracking state back to normal mode, without actually enabling
998 * interrupts.
999 */
1000static inline void kvmppc_fix_ee_before_entry(void)
1001{
1002 trace_hardirqs_on();
1003
1004#ifdef CONFIG_PPC64
1005 /*
1006 * To avoid races, the caller must have gone directly from having
1007 * interrupts fully-enabled to hard-disabled.
1008 */
1009 WARN_ON(local_paca->irq_happened != PACA_IRQ_HARD_DIS);
1010
1011 /* Only need to enable IRQs by hard enabling them after this */
1012 local_paca->irq_happened = 0;
1013 irq_soft_mask_set(IRQS_ENABLED);
1014#endif
1015}
1016
1017static inline ulong kvmppc_get_ea_indexed(struct kvm_vcpu *vcpu, int ra, int rb)
1018{
1019 ulong ea;
1020 ulong msr_64bit = 0;
1021
1022 ea = kvmppc_get_gpr(vcpu, rb);
1023 if (ra)
1024 ea += kvmppc_get_gpr(vcpu, ra);
1025
1026#if defined(CONFIG_PPC_BOOK3E_64)
1027 msr_64bit = MSR_CM;
1028#elif defined(CONFIG_PPC_BOOK3S_64)
1029 msr_64bit = MSR_SF;
1030#endif
1031
1032 if (!(kvmppc_get_msr(vcpu) & msr_64bit))
1033 ea = (uint32_t)ea;
1034
1035 return ea;
1036}
1037
1038extern void xics_wake_cpu(int cpu);
1039
1040#endif /* __POWERPC_KVM_PPC_H__ */