2 * Copyright (C) 2009. SUSE Linux Products GmbH. All rights reserved.
5 * Alexander Graf <agraf@suse.de>
6 * Kevin Wolf <mail@kevin-wolf.de>
9 * This file is derived from arch/powerpc/kvm/44x.c,
10 * by Hollis Blanchard <hollisb@us.ibm.com>.
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License, version 2, as
14 * published by the Free Software Foundation.
17 #include <linux/kvm_host.h>
18 #include <linux/err.h>
19 #include <linux/export.h>
20 #include <linux/slab.h>
21 #include <linux/module.h>
22 #include <linux/miscdevice.h>
25 #include <asm/cputable.h>
26 #include <asm/cacheflush.h>
27 #include <asm/tlbflush.h>
28 #include <asm/uaccess.h>
30 #include <asm/kvm_ppc.h>
31 #include <asm/kvm_book3s.h>
32 #include <asm/mmu_context.h>
34 #include <linux/gfp.h>
35 #include <linux/sched.h>
36 #include <linux/vmalloc.h>
37 #include <linux/highmem.h>
42 #define VCPU_STAT(x) offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU
44 /* #define EXIT_DEBUG */
46 struct kvm_stats_debugfs_item debugfs_entries
[] = {
47 { "exits", VCPU_STAT(sum_exits
) },
48 { "mmio", VCPU_STAT(mmio_exits
) },
49 { "sig", VCPU_STAT(signal_exits
) },
50 { "sysc", VCPU_STAT(syscall_exits
) },
51 { "inst_emu", VCPU_STAT(emulated_inst_exits
) },
52 { "dec", VCPU_STAT(dec_exits
) },
53 { "ext_intr", VCPU_STAT(ext_intr_exits
) },
54 { "queue_intr", VCPU_STAT(queue_intr
) },
55 { "halt_successful_poll", VCPU_STAT(halt_successful_poll
), },
56 { "halt_attempted_poll", VCPU_STAT(halt_attempted_poll
), },
57 { "halt_poll_invalid", VCPU_STAT(halt_poll_invalid
) },
58 { "halt_wakeup", VCPU_STAT(halt_wakeup
) },
59 { "pf_storage", VCPU_STAT(pf_storage
) },
60 { "sp_storage", VCPU_STAT(sp_storage
) },
61 { "pf_instruc", VCPU_STAT(pf_instruc
) },
62 { "sp_instruc", VCPU_STAT(sp_instruc
) },
63 { "ld", VCPU_STAT(ld
) },
64 { "ld_slow", VCPU_STAT(ld_slow
) },
65 { "st", VCPU_STAT(st
) },
66 { "st_slow", VCPU_STAT(st_slow
) },
70 void kvmppc_unfixup_split_real(struct kvm_vcpu
*vcpu
)
72 if (vcpu
->arch
.hflags
& BOOK3S_HFLAG_SPLIT_HACK
) {
73 ulong pc
= kvmppc_get_pc(vcpu
);
74 if ((pc
& SPLIT_HACK_MASK
) == SPLIT_HACK_OFFS
)
75 kvmppc_set_pc(vcpu
, pc
& ~SPLIT_HACK_MASK
);
76 vcpu
->arch
.hflags
&= ~BOOK3S_HFLAG_SPLIT_HACK
;
79 EXPORT_SYMBOL_GPL(kvmppc_unfixup_split_real
);
81 static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu
*vcpu
)
83 if (!is_kvmppc_hv_enabled(vcpu
->kvm
))
84 return to_book3s(vcpu
)->hior
;
88 static inline void kvmppc_update_int_pending(struct kvm_vcpu
*vcpu
,
89 unsigned long pending_now
, unsigned long old_pending
)
91 if (is_kvmppc_hv_enabled(vcpu
->kvm
))
94 kvmppc_set_int_pending(vcpu
, 1);
96 kvmppc_set_int_pending(vcpu
, 0);
99 static inline bool kvmppc_critical_section(struct kvm_vcpu
*vcpu
)
105 if (is_kvmppc_hv_enabled(vcpu
->kvm
))
108 crit_raw
= kvmppc_get_critical(vcpu
);
109 crit_r1
= kvmppc_get_gpr(vcpu
, 1);
111 /* Truncate crit indicators in 32 bit mode */
112 if (!(kvmppc_get_msr(vcpu
) & MSR_SF
)) {
113 crit_raw
&= 0xffffffff;
114 crit_r1
&= 0xffffffff;
117 /* Critical section when crit == r1 */
118 crit
= (crit_raw
== crit_r1
);
119 /* ... and we're in supervisor mode */
120 crit
= crit
&& !(kvmppc_get_msr(vcpu
) & MSR_PR
);
125 void kvmppc_inject_interrupt(struct kvm_vcpu
*vcpu
, int vec
, u64 flags
)
127 kvmppc_unfixup_split_real(vcpu
);
128 kvmppc_set_srr0(vcpu
, kvmppc_get_pc(vcpu
));
129 kvmppc_set_srr1(vcpu
, kvmppc_get_msr(vcpu
) | flags
);
130 kvmppc_set_pc(vcpu
, kvmppc_interrupt_offset(vcpu
) + vec
);
131 vcpu
->arch
.mmu
.reset_msr(vcpu
);
134 static int kvmppc_book3s_vec2irqprio(unsigned int vec
)
139 case 0x100: prio
= BOOK3S_IRQPRIO_SYSTEM_RESET
; break;
140 case 0x200: prio
= BOOK3S_IRQPRIO_MACHINE_CHECK
; break;
141 case 0x300: prio
= BOOK3S_IRQPRIO_DATA_STORAGE
; break;
142 case 0x380: prio
= BOOK3S_IRQPRIO_DATA_SEGMENT
; break;
143 case 0x400: prio
= BOOK3S_IRQPRIO_INST_STORAGE
; break;
144 case 0x480: prio
= BOOK3S_IRQPRIO_INST_SEGMENT
; break;
145 case 0x500: prio
= BOOK3S_IRQPRIO_EXTERNAL
; break;
146 case 0x501: prio
= BOOK3S_IRQPRIO_EXTERNAL_LEVEL
; break;
147 case 0x600: prio
= BOOK3S_IRQPRIO_ALIGNMENT
; break;
148 case 0x700: prio
= BOOK3S_IRQPRIO_PROGRAM
; break;
149 case 0x800: prio
= BOOK3S_IRQPRIO_FP_UNAVAIL
; break;
150 case 0x900: prio
= BOOK3S_IRQPRIO_DECREMENTER
; break;
151 case 0xc00: prio
= BOOK3S_IRQPRIO_SYSCALL
; break;
152 case 0xd00: prio
= BOOK3S_IRQPRIO_DEBUG
; break;
153 case 0xf20: prio
= BOOK3S_IRQPRIO_ALTIVEC
; break;
154 case 0xf40: prio
= BOOK3S_IRQPRIO_VSX
; break;
155 case 0xf60: prio
= BOOK3S_IRQPRIO_FAC_UNAVAIL
; break;
156 default: prio
= BOOK3S_IRQPRIO_MAX
; break;
162 void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu
*vcpu
,
165 unsigned long old_pending
= vcpu
->arch
.pending_exceptions
;
167 clear_bit(kvmppc_book3s_vec2irqprio(vec
),
168 &vcpu
->arch
.pending_exceptions
);
170 kvmppc_update_int_pending(vcpu
, vcpu
->arch
.pending_exceptions
,
174 void kvmppc_book3s_queue_irqprio(struct kvm_vcpu
*vcpu
, unsigned int vec
)
176 vcpu
->stat
.queue_intr
++;
178 set_bit(kvmppc_book3s_vec2irqprio(vec
),
179 &vcpu
->arch
.pending_exceptions
);
181 printk(KERN_INFO
"Queueing interrupt %x\n", vec
);
184 EXPORT_SYMBOL_GPL(kvmppc_book3s_queue_irqprio
);
186 void kvmppc_core_queue_program(struct kvm_vcpu
*vcpu
, ulong flags
)
188 /* might as well deliver this straight away */
189 kvmppc_inject_interrupt(vcpu
, BOOK3S_INTERRUPT_PROGRAM
, flags
);
191 EXPORT_SYMBOL_GPL(kvmppc_core_queue_program
);
193 void kvmppc_core_queue_dec(struct kvm_vcpu
*vcpu
)
195 kvmppc_book3s_queue_irqprio(vcpu
, BOOK3S_INTERRUPT_DECREMENTER
);
197 EXPORT_SYMBOL_GPL(kvmppc_core_queue_dec
);
199 int kvmppc_core_pending_dec(struct kvm_vcpu
*vcpu
)
201 return test_bit(BOOK3S_IRQPRIO_DECREMENTER
, &vcpu
->arch
.pending_exceptions
);
203 EXPORT_SYMBOL_GPL(kvmppc_core_pending_dec
);
205 void kvmppc_core_dequeue_dec(struct kvm_vcpu
*vcpu
)
207 kvmppc_book3s_dequeue_irqprio(vcpu
, BOOK3S_INTERRUPT_DECREMENTER
);
209 EXPORT_SYMBOL_GPL(kvmppc_core_dequeue_dec
);
211 void kvmppc_core_queue_external(struct kvm_vcpu
*vcpu
,
212 struct kvm_interrupt
*irq
)
214 unsigned int vec
= BOOK3S_INTERRUPT_EXTERNAL
;
216 if (irq
->irq
== KVM_INTERRUPT_SET_LEVEL
)
217 vec
= BOOK3S_INTERRUPT_EXTERNAL_LEVEL
;
219 kvmppc_book3s_queue_irqprio(vcpu
, vec
);
222 void kvmppc_core_dequeue_external(struct kvm_vcpu
*vcpu
)
224 kvmppc_book3s_dequeue_irqprio(vcpu
, BOOK3S_INTERRUPT_EXTERNAL
);
225 kvmppc_book3s_dequeue_irqprio(vcpu
, BOOK3S_INTERRUPT_EXTERNAL_LEVEL
);
228 void kvmppc_core_queue_data_storage(struct kvm_vcpu
*vcpu
, ulong dar
,
231 kvmppc_set_dar(vcpu
, dar
);
232 kvmppc_set_dsisr(vcpu
, flags
);
233 kvmppc_book3s_queue_irqprio(vcpu
, BOOK3S_INTERRUPT_DATA_STORAGE
);
236 void kvmppc_core_queue_inst_storage(struct kvm_vcpu
*vcpu
, ulong flags
)
238 u64 msr
= kvmppc_get_msr(vcpu
);
239 msr
&= ~(SRR1_ISI_NOPT
| SRR1_ISI_N_OR_G
| SRR1_ISI_PROT
);
240 msr
|= flags
& (SRR1_ISI_NOPT
| SRR1_ISI_N_OR_G
| SRR1_ISI_PROT
);
241 kvmppc_set_msr_fast(vcpu
, msr
);
242 kvmppc_book3s_queue_irqprio(vcpu
, BOOK3S_INTERRUPT_INST_STORAGE
);
245 static int kvmppc_book3s_irqprio_deliver(struct kvm_vcpu
*vcpu
,
246 unsigned int priority
)
250 bool crit
= kvmppc_critical_section(vcpu
);
253 case BOOK3S_IRQPRIO_DECREMENTER
:
254 deliver
= (kvmppc_get_msr(vcpu
) & MSR_EE
) && !crit
;
255 vec
= BOOK3S_INTERRUPT_DECREMENTER
;
257 case BOOK3S_IRQPRIO_EXTERNAL
:
258 case BOOK3S_IRQPRIO_EXTERNAL_LEVEL
:
259 deliver
= (kvmppc_get_msr(vcpu
) & MSR_EE
) && !crit
;
260 vec
= BOOK3S_INTERRUPT_EXTERNAL
;
262 case BOOK3S_IRQPRIO_SYSTEM_RESET
:
263 vec
= BOOK3S_INTERRUPT_SYSTEM_RESET
;
265 case BOOK3S_IRQPRIO_MACHINE_CHECK
:
266 vec
= BOOK3S_INTERRUPT_MACHINE_CHECK
;
268 case BOOK3S_IRQPRIO_DATA_STORAGE
:
269 vec
= BOOK3S_INTERRUPT_DATA_STORAGE
;
271 case BOOK3S_IRQPRIO_INST_STORAGE
:
272 vec
= BOOK3S_INTERRUPT_INST_STORAGE
;
274 case BOOK3S_IRQPRIO_DATA_SEGMENT
:
275 vec
= BOOK3S_INTERRUPT_DATA_SEGMENT
;
277 case BOOK3S_IRQPRIO_INST_SEGMENT
:
278 vec
= BOOK3S_INTERRUPT_INST_SEGMENT
;
280 case BOOK3S_IRQPRIO_ALIGNMENT
:
281 vec
= BOOK3S_INTERRUPT_ALIGNMENT
;
283 case BOOK3S_IRQPRIO_PROGRAM
:
284 vec
= BOOK3S_INTERRUPT_PROGRAM
;
286 case BOOK3S_IRQPRIO_VSX
:
287 vec
= BOOK3S_INTERRUPT_VSX
;
289 case BOOK3S_IRQPRIO_ALTIVEC
:
290 vec
= BOOK3S_INTERRUPT_ALTIVEC
;
292 case BOOK3S_IRQPRIO_FP_UNAVAIL
:
293 vec
= BOOK3S_INTERRUPT_FP_UNAVAIL
;
295 case BOOK3S_IRQPRIO_SYSCALL
:
296 vec
= BOOK3S_INTERRUPT_SYSCALL
;
298 case BOOK3S_IRQPRIO_DEBUG
:
299 vec
= BOOK3S_INTERRUPT_TRACE
;
301 case BOOK3S_IRQPRIO_PERFORMANCE_MONITOR
:
302 vec
= BOOK3S_INTERRUPT_PERFMON
;
304 case BOOK3S_IRQPRIO_FAC_UNAVAIL
:
305 vec
= BOOK3S_INTERRUPT_FAC_UNAVAIL
;
309 printk(KERN_ERR
"KVM: Unknown interrupt: 0x%x\n", priority
);
314 printk(KERN_INFO
"Deliver interrupt 0x%x? %x\n", vec
, deliver
);
318 kvmppc_inject_interrupt(vcpu
, vec
, 0);
324 * This function determines if an irqprio should be cleared once issued.
326 static bool clear_irqprio(struct kvm_vcpu
*vcpu
, unsigned int priority
)
329 case BOOK3S_IRQPRIO_DECREMENTER
:
330 /* DEC interrupts get cleared by mtdec */
332 case BOOK3S_IRQPRIO_EXTERNAL_LEVEL
:
333 /* External interrupts get cleared by userspace */
340 int kvmppc_core_prepare_to_enter(struct kvm_vcpu
*vcpu
)
342 unsigned long *pending
= &vcpu
->arch
.pending_exceptions
;
343 unsigned long old_pending
= vcpu
->arch
.pending_exceptions
;
344 unsigned int priority
;
347 if (vcpu
->arch
.pending_exceptions
)
348 printk(KERN_EMERG
"KVM: Check pending: %lx\n", vcpu
->arch
.pending_exceptions
);
350 priority
= __ffs(*pending
);
351 while (priority
< BOOK3S_IRQPRIO_MAX
) {
352 if (kvmppc_book3s_irqprio_deliver(vcpu
, priority
) &&
353 clear_irqprio(vcpu
, priority
)) {
354 clear_bit(priority
, &vcpu
->arch
.pending_exceptions
);
358 priority
= find_next_bit(pending
,
359 BITS_PER_BYTE
* sizeof(*pending
),
363 /* Tell the guest about our interrupt status */
364 kvmppc_update_int_pending(vcpu
, *pending
, old_pending
);
368 EXPORT_SYMBOL_GPL(kvmppc_core_prepare_to_enter
);
370 kvm_pfn_t
kvmppc_gpa_to_pfn(struct kvm_vcpu
*vcpu
, gpa_t gpa
, bool writing
,
373 ulong mp_pa
= vcpu
->arch
.magic_page_pa
& KVM_PAM
;
374 gfn_t gfn
= gpa
>> PAGE_SHIFT
;
376 if (!(kvmppc_get_msr(vcpu
) & MSR_SF
))
377 mp_pa
= (uint32_t)mp_pa
;
379 /* Magic page override */
381 if (unlikely(mp_pa
) && unlikely((gpa
& KVM_PAM
) == mp_pa
)) {
382 ulong shared_page
= ((ulong
)vcpu
->arch
.shared
) & PAGE_MASK
;
385 pfn
= (kvm_pfn_t
)virt_to_phys((void*)shared_page
) >> PAGE_SHIFT
;
386 get_page(pfn_to_page(pfn
));
392 return gfn_to_pfn_prot(vcpu
->kvm
, gfn
, writing
, writable
);
394 EXPORT_SYMBOL_GPL(kvmppc_gpa_to_pfn
);
396 int kvmppc_xlate(struct kvm_vcpu
*vcpu
, ulong eaddr
, enum xlate_instdata xlid
,
397 enum xlate_readwrite xlrw
, struct kvmppc_pte
*pte
)
399 bool data
= (xlid
== XLATE_DATA
);
400 bool iswrite
= (xlrw
== XLATE_WRITE
);
401 int relocated
= (kvmppc_get_msr(vcpu
) & (data
? MSR_DR
: MSR_IR
));
405 r
= vcpu
->arch
.mmu
.xlate(vcpu
, eaddr
, pte
, data
, iswrite
);
408 pte
->raddr
= eaddr
& KVM_PAM
;
409 pte
->vpage
= VSID_REAL
| eaddr
>> 12;
410 pte
->may_read
= true;
411 pte
->may_write
= true;
412 pte
->may_execute
= true;
415 if ((kvmppc_get_msr(vcpu
) & (MSR_IR
| MSR_DR
)) == MSR_DR
&&
417 if ((vcpu
->arch
.hflags
& BOOK3S_HFLAG_SPLIT_HACK
) &&
418 ((eaddr
& SPLIT_HACK_MASK
) == SPLIT_HACK_OFFS
))
419 pte
->raddr
&= ~SPLIT_HACK_MASK
;
426 int kvmppc_load_last_inst(struct kvm_vcpu
*vcpu
, enum instruction_type type
,
429 ulong pc
= kvmppc_get_pc(vcpu
);
435 r
= kvmppc_ld(vcpu
, &pc
, sizeof(u32
), inst
, false);
436 if (r
== EMULATE_DONE
)
439 return EMULATE_AGAIN
;
441 EXPORT_SYMBOL_GPL(kvmppc_load_last_inst
);
443 int kvm_arch_vcpu_setup(struct kvm_vcpu
*vcpu
)
448 int kvmppc_subarch_vcpu_init(struct kvm_vcpu
*vcpu
)
453 void kvmppc_subarch_vcpu_uninit(struct kvm_vcpu
*vcpu
)
457 int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu
*vcpu
,
458 struct kvm_sregs
*sregs
)
460 return vcpu
->kvm
->arch
.kvm_ops
->get_sregs(vcpu
, sregs
);
463 int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu
*vcpu
,
464 struct kvm_sregs
*sregs
)
466 return vcpu
->kvm
->arch
.kvm_ops
->set_sregs(vcpu
, sregs
);
469 int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu
*vcpu
, struct kvm_regs
*regs
)
473 regs
->pc
= kvmppc_get_pc(vcpu
);
474 regs
->cr
= kvmppc_get_cr(vcpu
);
475 regs
->ctr
= kvmppc_get_ctr(vcpu
);
476 regs
->lr
= kvmppc_get_lr(vcpu
);
477 regs
->xer
= kvmppc_get_xer(vcpu
);
478 regs
->msr
= kvmppc_get_msr(vcpu
);
479 regs
->srr0
= kvmppc_get_srr0(vcpu
);
480 regs
->srr1
= kvmppc_get_srr1(vcpu
);
481 regs
->pid
= vcpu
->arch
.pid
;
482 regs
->sprg0
= kvmppc_get_sprg0(vcpu
);
483 regs
->sprg1
= kvmppc_get_sprg1(vcpu
);
484 regs
->sprg2
= kvmppc_get_sprg2(vcpu
);
485 regs
->sprg3
= kvmppc_get_sprg3(vcpu
);
486 regs
->sprg4
= kvmppc_get_sprg4(vcpu
);
487 regs
->sprg5
= kvmppc_get_sprg5(vcpu
);
488 regs
->sprg6
= kvmppc_get_sprg6(vcpu
);
489 regs
->sprg7
= kvmppc_get_sprg7(vcpu
);
491 for (i
= 0; i
< ARRAY_SIZE(regs
->gpr
); i
++)
492 regs
->gpr
[i
] = kvmppc_get_gpr(vcpu
, i
);
497 int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu
*vcpu
, struct kvm_regs
*regs
)
501 kvmppc_set_pc(vcpu
, regs
->pc
);
502 kvmppc_set_cr(vcpu
, regs
->cr
);
503 kvmppc_set_ctr(vcpu
, regs
->ctr
);
504 kvmppc_set_lr(vcpu
, regs
->lr
);
505 kvmppc_set_xer(vcpu
, regs
->xer
);
506 kvmppc_set_msr(vcpu
, regs
->msr
);
507 kvmppc_set_srr0(vcpu
, regs
->srr0
);
508 kvmppc_set_srr1(vcpu
, regs
->srr1
);
509 kvmppc_set_sprg0(vcpu
, regs
->sprg0
);
510 kvmppc_set_sprg1(vcpu
, regs
->sprg1
);
511 kvmppc_set_sprg2(vcpu
, regs
->sprg2
);
512 kvmppc_set_sprg3(vcpu
, regs
->sprg3
);
513 kvmppc_set_sprg4(vcpu
, regs
->sprg4
);
514 kvmppc_set_sprg5(vcpu
, regs
->sprg5
);
515 kvmppc_set_sprg6(vcpu
, regs
->sprg6
);
516 kvmppc_set_sprg7(vcpu
, regs
->sprg7
);
518 for (i
= 0; i
< ARRAY_SIZE(regs
->gpr
); i
++)
519 kvmppc_set_gpr(vcpu
, i
, regs
->gpr
[i
]);
524 int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu
*vcpu
, struct kvm_fpu
*fpu
)
529 int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu
*vcpu
, struct kvm_fpu
*fpu
)
534 int kvmppc_get_one_reg(struct kvm_vcpu
*vcpu
, u64 id
,
535 union kvmppc_one_reg
*val
)
540 r
= vcpu
->kvm
->arch
.kvm_ops
->get_one_reg(vcpu
, id
, val
);
544 case KVM_REG_PPC_DAR
:
545 *val
= get_reg_val(id
, kvmppc_get_dar(vcpu
));
547 case KVM_REG_PPC_DSISR
:
548 *val
= get_reg_val(id
, kvmppc_get_dsisr(vcpu
));
550 case KVM_REG_PPC_FPR0
... KVM_REG_PPC_FPR31
:
551 i
= id
- KVM_REG_PPC_FPR0
;
552 *val
= get_reg_val(id
, VCPU_FPR(vcpu
, i
));
554 case KVM_REG_PPC_FPSCR
:
555 *val
= get_reg_val(id
, vcpu
->arch
.fp
.fpscr
);
558 case KVM_REG_PPC_VSR0
... KVM_REG_PPC_VSR31
:
559 if (cpu_has_feature(CPU_FTR_VSX
)) {
560 i
= id
- KVM_REG_PPC_VSR0
;
561 val
->vsxval
[0] = vcpu
->arch
.fp
.fpr
[i
][0];
562 val
->vsxval
[1] = vcpu
->arch
.fp
.fpr
[i
][1];
567 #endif /* CONFIG_VSX */
568 case KVM_REG_PPC_DEBUG_INST
:
569 *val
= get_reg_val(id
, INS_TW
);
571 #ifdef CONFIG_KVM_XICS
572 case KVM_REG_PPC_ICP_STATE
:
573 if (!vcpu
->arch
.icp
) {
577 *val
= get_reg_val(id
, kvmppc_xics_get_icp(vcpu
));
579 #endif /* CONFIG_KVM_XICS */
580 case KVM_REG_PPC_FSCR
:
581 *val
= get_reg_val(id
, vcpu
->arch
.fscr
);
583 case KVM_REG_PPC_TAR
:
584 *val
= get_reg_val(id
, vcpu
->arch
.tar
);
586 case KVM_REG_PPC_EBBHR
:
587 *val
= get_reg_val(id
, vcpu
->arch
.ebbhr
);
589 case KVM_REG_PPC_EBBRR
:
590 *val
= get_reg_val(id
, vcpu
->arch
.ebbrr
);
592 case KVM_REG_PPC_BESCR
:
593 *val
= get_reg_val(id
, vcpu
->arch
.bescr
);
595 case KVM_REG_PPC_VTB
:
596 *val
= get_reg_val(id
, vcpu
->arch
.vtb
);
599 *val
= get_reg_val(id
, vcpu
->arch
.ic
);
610 int kvmppc_set_one_reg(struct kvm_vcpu
*vcpu
, u64 id
,
611 union kvmppc_one_reg
*val
)
616 r
= vcpu
->kvm
->arch
.kvm_ops
->set_one_reg(vcpu
, id
, val
);
620 case KVM_REG_PPC_DAR
:
621 kvmppc_set_dar(vcpu
, set_reg_val(id
, *val
));
623 case KVM_REG_PPC_DSISR
:
624 kvmppc_set_dsisr(vcpu
, set_reg_val(id
, *val
));
626 case KVM_REG_PPC_FPR0
... KVM_REG_PPC_FPR31
:
627 i
= id
- KVM_REG_PPC_FPR0
;
628 VCPU_FPR(vcpu
, i
) = set_reg_val(id
, *val
);
630 case KVM_REG_PPC_FPSCR
:
631 vcpu
->arch
.fp
.fpscr
= set_reg_val(id
, *val
);
634 case KVM_REG_PPC_VSR0
... KVM_REG_PPC_VSR31
:
635 if (cpu_has_feature(CPU_FTR_VSX
)) {
636 i
= id
- KVM_REG_PPC_VSR0
;
637 vcpu
->arch
.fp
.fpr
[i
][0] = val
->vsxval
[0];
638 vcpu
->arch
.fp
.fpr
[i
][1] = val
->vsxval
[1];
643 #endif /* CONFIG_VSX */
644 #ifdef CONFIG_KVM_XICS
645 case KVM_REG_PPC_ICP_STATE
:
646 if (!vcpu
->arch
.icp
) {
650 r
= kvmppc_xics_set_icp(vcpu
,
651 set_reg_val(id
, *val
));
653 #endif /* CONFIG_KVM_XICS */
654 case KVM_REG_PPC_FSCR
:
655 vcpu
->arch
.fscr
= set_reg_val(id
, *val
);
657 case KVM_REG_PPC_TAR
:
658 vcpu
->arch
.tar
= set_reg_val(id
, *val
);
660 case KVM_REG_PPC_EBBHR
:
661 vcpu
->arch
.ebbhr
= set_reg_val(id
, *val
);
663 case KVM_REG_PPC_EBBRR
:
664 vcpu
->arch
.ebbrr
= set_reg_val(id
, *val
);
666 case KVM_REG_PPC_BESCR
:
667 vcpu
->arch
.bescr
= set_reg_val(id
, *val
);
669 case KVM_REG_PPC_VTB
:
670 vcpu
->arch
.vtb
= set_reg_val(id
, *val
);
673 vcpu
->arch
.ic
= set_reg_val(id
, *val
);
684 void kvmppc_core_vcpu_load(struct kvm_vcpu
*vcpu
, int cpu
)
686 vcpu
->kvm
->arch
.kvm_ops
->vcpu_load(vcpu
, cpu
);
689 void kvmppc_core_vcpu_put(struct kvm_vcpu
*vcpu
)
691 vcpu
->kvm
->arch
.kvm_ops
->vcpu_put(vcpu
);
694 void kvmppc_set_msr(struct kvm_vcpu
*vcpu
, u64 msr
)
696 vcpu
->kvm
->arch
.kvm_ops
->set_msr(vcpu
, msr
);
698 EXPORT_SYMBOL_GPL(kvmppc_set_msr
);
700 int kvmppc_vcpu_run(struct kvm_run
*kvm_run
, struct kvm_vcpu
*vcpu
)
702 return vcpu
->kvm
->arch
.kvm_ops
->vcpu_run(kvm_run
, vcpu
);
705 int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu
*vcpu
,
706 struct kvm_translation
*tr
)
711 int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu
*vcpu
,
712 struct kvm_guest_debug
*dbg
)
714 vcpu
->guest_debug
= dbg
->control
;
718 void kvmppc_decrementer_func(struct kvm_vcpu
*vcpu
)
720 kvmppc_core_queue_dec(vcpu
);
724 struct kvm_vcpu
*kvmppc_core_vcpu_create(struct kvm
*kvm
, unsigned int id
)
726 return kvm
->arch
.kvm_ops
->vcpu_create(kvm
, id
);
729 void kvmppc_core_vcpu_free(struct kvm_vcpu
*vcpu
)
731 vcpu
->kvm
->arch
.kvm_ops
->vcpu_free(vcpu
);
734 int kvmppc_core_check_requests(struct kvm_vcpu
*vcpu
)
736 return vcpu
->kvm
->arch
.kvm_ops
->check_requests(vcpu
);
739 int kvm_vm_ioctl_get_dirty_log(struct kvm
*kvm
, struct kvm_dirty_log
*log
)
741 return kvm
->arch
.kvm_ops
->get_dirty_log(kvm
, log
);
744 void kvmppc_core_free_memslot(struct kvm
*kvm
, struct kvm_memory_slot
*free
,
745 struct kvm_memory_slot
*dont
)
747 kvm
->arch
.kvm_ops
->free_memslot(free
, dont
);
750 int kvmppc_core_create_memslot(struct kvm
*kvm
, struct kvm_memory_slot
*slot
,
751 unsigned long npages
)
753 return kvm
->arch
.kvm_ops
->create_memslot(slot
, npages
);
756 void kvmppc_core_flush_memslot(struct kvm
*kvm
, struct kvm_memory_slot
*memslot
)
758 kvm
->arch
.kvm_ops
->flush_memslot(kvm
, memslot
);
761 int kvmppc_core_prepare_memory_region(struct kvm
*kvm
,
762 struct kvm_memory_slot
*memslot
,
763 const struct kvm_userspace_memory_region
*mem
)
765 return kvm
->arch
.kvm_ops
->prepare_memory_region(kvm
, memslot
, mem
);
768 void kvmppc_core_commit_memory_region(struct kvm
*kvm
,
769 const struct kvm_userspace_memory_region
*mem
,
770 const struct kvm_memory_slot
*old
,
771 const struct kvm_memory_slot
*new)
773 kvm
->arch
.kvm_ops
->commit_memory_region(kvm
, mem
, old
, new);
776 int kvm_unmap_hva(struct kvm
*kvm
, unsigned long hva
)
778 return kvm
->arch
.kvm_ops
->unmap_hva(kvm
, hva
);
780 EXPORT_SYMBOL_GPL(kvm_unmap_hva
);
782 int kvm_unmap_hva_range(struct kvm
*kvm
, unsigned long start
, unsigned long end
)
784 return kvm
->arch
.kvm_ops
->unmap_hva_range(kvm
, start
, end
);
787 int kvm_age_hva(struct kvm
*kvm
, unsigned long start
, unsigned long end
)
789 return kvm
->arch
.kvm_ops
->age_hva(kvm
, start
, end
);
792 int kvm_test_age_hva(struct kvm
*kvm
, unsigned long hva
)
794 return kvm
->arch
.kvm_ops
->test_age_hva(kvm
, hva
);
797 void kvm_set_spte_hva(struct kvm
*kvm
, unsigned long hva
, pte_t pte
)
799 kvm
->arch
.kvm_ops
->set_spte_hva(kvm
, hva
, pte
);
802 void kvmppc_mmu_destroy(struct kvm_vcpu
*vcpu
)
804 vcpu
->kvm
->arch
.kvm_ops
->mmu_destroy(vcpu
);
807 int kvmppc_core_init_vm(struct kvm
*kvm
)
811 INIT_LIST_HEAD_RCU(&kvm
->arch
.spapr_tce_tables
);
812 INIT_LIST_HEAD(&kvm
->arch
.rtas_tokens
);
815 return kvm
->arch
.kvm_ops
->init_vm(kvm
);
818 void kvmppc_core_destroy_vm(struct kvm
*kvm
)
820 kvm
->arch
.kvm_ops
->destroy_vm(kvm
);
823 kvmppc_rtas_tokens_free(kvm
);
824 WARN_ON(!list_empty(&kvm
->arch
.spapr_tce_tables
));
828 int kvmppc_h_logical_ci_load(struct kvm_vcpu
*vcpu
)
830 unsigned long size
= kvmppc_get_gpr(vcpu
, 4);
831 unsigned long addr
= kvmppc_get_gpr(vcpu
, 5);
836 if (!is_power_of_2(size
) || (size
> sizeof(buf
)))
839 srcu_idx
= srcu_read_lock(&vcpu
->kvm
->srcu
);
840 ret
= kvm_io_bus_read(vcpu
, KVM_MMIO_BUS
, addr
, size
, &buf
);
841 srcu_read_unlock(&vcpu
->kvm
->srcu
, srcu_idx
);
847 kvmppc_set_gpr(vcpu
, 4, *(u8
*)&buf
);
851 kvmppc_set_gpr(vcpu
, 4, be16_to_cpu(*(__be16
*)&buf
));
855 kvmppc_set_gpr(vcpu
, 4, be32_to_cpu(*(__be32
*)&buf
));
859 kvmppc_set_gpr(vcpu
, 4, be64_to_cpu(*(__be64
*)&buf
));
868 EXPORT_SYMBOL_GPL(kvmppc_h_logical_ci_load
);
870 int kvmppc_h_logical_ci_store(struct kvm_vcpu
*vcpu
)
872 unsigned long size
= kvmppc_get_gpr(vcpu
, 4);
873 unsigned long addr
= kvmppc_get_gpr(vcpu
, 5);
874 unsigned long val
= kvmppc_get_gpr(vcpu
, 6);
885 *(__be16
*)&buf
= cpu_to_be16(val
);
889 *(__be32
*)&buf
= cpu_to_be32(val
);
893 *(__be64
*)&buf
= cpu_to_be64(val
);
900 srcu_idx
= srcu_read_lock(&vcpu
->kvm
->srcu
);
901 ret
= kvm_io_bus_write(vcpu
, KVM_MMIO_BUS
, addr
, size
, &buf
);
902 srcu_read_unlock(&vcpu
->kvm
->srcu
, srcu_idx
);
908 EXPORT_SYMBOL_GPL(kvmppc_h_logical_ci_store
);
910 int kvmppc_core_check_processor_compat(void)
913 * We always return 0 for book3s. We check
914 * for compatibility while loading the HV
920 int kvmppc_book3s_hcall_implemented(struct kvm
*kvm
, unsigned long hcall
)
922 return kvm
->arch
.kvm_ops
->hcall_implemented(hcall
);
925 static int kvmppc_book3s_init(void)
929 r
= kvm_init(NULL
, sizeof(struct kvm_vcpu
), 0, THIS_MODULE
);
932 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
933 r
= kvmppc_book3s_init_pr();
939 static void kvmppc_book3s_exit(void)
941 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
942 kvmppc_book3s_exit_pr();
947 module_init(kvmppc_book3s_init
);
948 module_exit(kvmppc_book3s_exit
);
950 /* On 32bit this is our one and only kernel module */
951 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
952 MODULE_ALIAS_MISCDEV(KVM_MINOR
);
953 MODULE_ALIAS("devname:kvm");