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_wakeup", VCPU_STAT(halt_wakeup) },
56 { "pf_storage", VCPU_STAT(pf_storage) },
57 { "sp_storage", VCPU_STAT(sp_storage) },
58 { "pf_instruc", VCPU_STAT(pf_instruc) },
59 { "sp_instruc", VCPU_STAT(sp_instruc) },
60 { "ld", VCPU_STAT(ld) },
61 { "ld_slow", VCPU_STAT(ld_slow) },
62 { "st", VCPU_STAT(st) },
63 { "st_slow", VCPU_STAT(st_slow) },
67 void kvmppc_core_load_host_debugstate(struct kvm_vcpu *vcpu)
71 void kvmppc_core_load_guest_debugstate(struct kvm_vcpu *vcpu)
75 void kvmppc_unfixup_split_real(struct kvm_vcpu *vcpu)
77 if (vcpu->arch.hflags & BOOK3S_HFLAG_SPLIT_HACK) {
78 ulong pc = kvmppc_get_pc(vcpu);
79 if ((pc & SPLIT_HACK_MASK) == SPLIT_HACK_OFFS)
80 kvmppc_set_pc(vcpu, pc & ~SPLIT_HACK_MASK);
81 vcpu->arch.hflags &= ~BOOK3S_HFLAG_SPLIT_HACK;
84 EXPORT_SYMBOL_GPL(kvmppc_unfixup_split_real);
86 static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu)
88 if (!is_kvmppc_hv_enabled(vcpu->kvm))
89 return to_book3s(vcpu)->hior;
93 static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu,
94 unsigned long pending_now, unsigned long old_pending)
96 if (is_kvmppc_hv_enabled(vcpu->kvm))
99 kvmppc_set_int_pending(vcpu, 1);
100 else if (old_pending)
101 kvmppc_set_int_pending(vcpu, 0);
104 static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu)
110 if (is_kvmppc_hv_enabled(vcpu->kvm))
113 crit_raw = kvmppc_get_critical(vcpu);
114 crit_r1 = kvmppc_get_gpr(vcpu, 1);
116 /* Truncate crit indicators in 32 bit mode */
117 if (!(kvmppc_get_msr(vcpu) & MSR_SF)) {
118 crit_raw &= 0xffffffff;
119 crit_r1 &= 0xffffffff;
122 /* Critical section when crit == r1 */
123 crit = (crit_raw == crit_r1);
124 /* ... and we're in supervisor mode */
125 crit = crit && !(kvmppc_get_msr(vcpu) & MSR_PR);
130 void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags)
132 kvmppc_unfixup_split_real(vcpu);
133 kvmppc_set_srr0(vcpu, kvmppc_get_pc(vcpu));
134 kvmppc_set_srr1(vcpu, kvmppc_get_msr(vcpu) | flags);
135 kvmppc_set_pc(vcpu, kvmppc_interrupt_offset(vcpu) + vec);
136 vcpu->arch.mmu.reset_msr(vcpu);
139 static int kvmppc_book3s_vec2irqprio(unsigned int vec)
144 case 0x100: prio = BOOK3S_IRQPRIO_SYSTEM_RESET; break;
145 case 0x200: prio = BOOK3S_IRQPRIO_MACHINE_CHECK; break;
146 case 0x300: prio = BOOK3S_IRQPRIO_DATA_STORAGE; break;
147 case 0x380: prio = BOOK3S_IRQPRIO_DATA_SEGMENT; break;
148 case 0x400: prio = BOOK3S_IRQPRIO_INST_STORAGE; break;
149 case 0x480: prio = BOOK3S_IRQPRIO_INST_SEGMENT; break;
150 case 0x500: prio = BOOK3S_IRQPRIO_EXTERNAL; break;
151 case 0x501: prio = BOOK3S_IRQPRIO_EXTERNAL_LEVEL; break;
152 case 0x600: prio = BOOK3S_IRQPRIO_ALIGNMENT; break;
153 case 0x700: prio = BOOK3S_IRQPRIO_PROGRAM; break;
154 case 0x800: prio = BOOK3S_IRQPRIO_FP_UNAVAIL; break;
155 case 0x900: prio = BOOK3S_IRQPRIO_DECREMENTER; break;
156 case 0xc00: prio = BOOK3S_IRQPRIO_SYSCALL; break;
157 case 0xd00: prio = BOOK3S_IRQPRIO_DEBUG; break;
158 case 0xf20: prio = BOOK3S_IRQPRIO_ALTIVEC; break;
159 case 0xf40: prio = BOOK3S_IRQPRIO_VSX; break;
160 case 0xf60: prio = BOOK3S_IRQPRIO_FAC_UNAVAIL; break;
161 default: prio = BOOK3S_IRQPRIO_MAX; break;
167 void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu *vcpu,
170 unsigned long old_pending = vcpu->arch.pending_exceptions;
172 clear_bit(kvmppc_book3s_vec2irqprio(vec),
173 &vcpu->arch.pending_exceptions);
175 kvmppc_update_int_pending(vcpu, vcpu->arch.pending_exceptions,
179 void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec)
181 vcpu->stat.queue_intr++;
183 set_bit(kvmppc_book3s_vec2irqprio(vec),
184 &vcpu->arch.pending_exceptions);
186 printk(KERN_INFO "Queueing interrupt %x\n", vec);
189 EXPORT_SYMBOL_GPL(kvmppc_book3s_queue_irqprio);
191 void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags)
193 /* might as well deliver this straight away */
194 kvmppc_inject_interrupt(vcpu, BOOK3S_INTERRUPT_PROGRAM, flags);
196 EXPORT_SYMBOL_GPL(kvmppc_core_queue_program);
198 void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu)
200 kvmppc_book3s_queue_irqprio(vcpu, BOOK3S_INTERRUPT_DECREMENTER);
202 EXPORT_SYMBOL_GPL(kvmppc_core_queue_dec);
204 int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu)
206 return test_bit(BOOK3S_IRQPRIO_DECREMENTER, &vcpu->arch.pending_exceptions);
208 EXPORT_SYMBOL_GPL(kvmppc_core_pending_dec);
210 void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu)
212 kvmppc_book3s_dequeue_irqprio(vcpu, BOOK3S_INTERRUPT_DECREMENTER);
214 EXPORT_SYMBOL_GPL(kvmppc_core_dequeue_dec);
216 void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,
217 struct kvm_interrupt *irq)
219 unsigned int vec = BOOK3S_INTERRUPT_EXTERNAL;
221 if (irq->irq == KVM_INTERRUPT_SET_LEVEL)
222 vec = BOOK3S_INTERRUPT_EXTERNAL_LEVEL;
224 kvmppc_book3s_queue_irqprio(vcpu, vec);
227 void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu)
229 kvmppc_book3s_dequeue_irqprio(vcpu, BOOK3S_INTERRUPT_EXTERNAL);
230 kvmppc_book3s_dequeue_irqprio(vcpu, BOOK3S_INTERRUPT_EXTERNAL_LEVEL);
233 int kvmppc_book3s_irqprio_deliver(struct kvm_vcpu *vcpu, unsigned int priority)
237 bool crit = kvmppc_critical_section(vcpu);
240 case BOOK3S_IRQPRIO_DECREMENTER:
241 deliver = (kvmppc_get_msr(vcpu) & MSR_EE) && !crit;
242 vec = BOOK3S_INTERRUPT_DECREMENTER;
244 case BOOK3S_IRQPRIO_EXTERNAL:
245 case BOOK3S_IRQPRIO_EXTERNAL_LEVEL:
246 deliver = (kvmppc_get_msr(vcpu) & MSR_EE) && !crit;
247 vec = BOOK3S_INTERRUPT_EXTERNAL;
249 case BOOK3S_IRQPRIO_SYSTEM_RESET:
250 vec = BOOK3S_INTERRUPT_SYSTEM_RESET;
252 case BOOK3S_IRQPRIO_MACHINE_CHECK:
253 vec = BOOK3S_INTERRUPT_MACHINE_CHECK;
255 case BOOK3S_IRQPRIO_DATA_STORAGE:
256 vec = BOOK3S_INTERRUPT_DATA_STORAGE;
258 case BOOK3S_IRQPRIO_INST_STORAGE:
259 vec = BOOK3S_INTERRUPT_INST_STORAGE;
261 case BOOK3S_IRQPRIO_DATA_SEGMENT:
262 vec = BOOK3S_INTERRUPT_DATA_SEGMENT;
264 case BOOK3S_IRQPRIO_INST_SEGMENT:
265 vec = BOOK3S_INTERRUPT_INST_SEGMENT;
267 case BOOK3S_IRQPRIO_ALIGNMENT:
268 vec = BOOK3S_INTERRUPT_ALIGNMENT;
270 case BOOK3S_IRQPRIO_PROGRAM:
271 vec = BOOK3S_INTERRUPT_PROGRAM;
273 case BOOK3S_IRQPRIO_VSX:
274 vec = BOOK3S_INTERRUPT_VSX;
276 case BOOK3S_IRQPRIO_ALTIVEC:
277 vec = BOOK3S_INTERRUPT_ALTIVEC;
279 case BOOK3S_IRQPRIO_FP_UNAVAIL:
280 vec = BOOK3S_INTERRUPT_FP_UNAVAIL;
282 case BOOK3S_IRQPRIO_SYSCALL:
283 vec = BOOK3S_INTERRUPT_SYSCALL;
285 case BOOK3S_IRQPRIO_DEBUG:
286 vec = BOOK3S_INTERRUPT_TRACE;
288 case BOOK3S_IRQPRIO_PERFORMANCE_MONITOR:
289 vec = BOOK3S_INTERRUPT_PERFMON;
291 case BOOK3S_IRQPRIO_FAC_UNAVAIL:
292 vec = BOOK3S_INTERRUPT_FAC_UNAVAIL;
296 printk(KERN_ERR "KVM: Unknown interrupt: 0x%x\n", priority);
301 printk(KERN_INFO "Deliver interrupt 0x%x? %x\n", vec, deliver);
305 kvmppc_inject_interrupt(vcpu, vec, 0);
311 * This function determines if an irqprio should be cleared once issued.
313 static bool clear_irqprio(struct kvm_vcpu *vcpu, unsigned int priority)
316 case BOOK3S_IRQPRIO_DECREMENTER:
317 /* DEC interrupts get cleared by mtdec */
319 case BOOK3S_IRQPRIO_EXTERNAL_LEVEL:
320 /* External interrupts get cleared by userspace */
327 int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu)
329 unsigned long *pending = &vcpu->arch.pending_exceptions;
330 unsigned long old_pending = vcpu->arch.pending_exceptions;
331 unsigned int priority;
334 if (vcpu->arch.pending_exceptions)
335 printk(KERN_EMERG "KVM: Check pending: %lx\n", vcpu->arch.pending_exceptions);
337 priority = __ffs(*pending);
338 while (priority < BOOK3S_IRQPRIO_MAX) {
339 if (kvmppc_book3s_irqprio_deliver(vcpu, priority) &&
340 clear_irqprio(vcpu, priority)) {
341 clear_bit(priority, &vcpu->arch.pending_exceptions);
345 priority = find_next_bit(pending,
346 BITS_PER_BYTE * sizeof(*pending),
350 /* Tell the guest about our interrupt status */
351 kvmppc_update_int_pending(vcpu, *pending, old_pending);
355 EXPORT_SYMBOL_GPL(kvmppc_core_prepare_to_enter);
357 pfn_t kvmppc_gpa_to_pfn(struct kvm_vcpu *vcpu, gpa_t gpa, bool writing,
360 ulong mp_pa = vcpu->arch.magic_page_pa & KVM_PAM;
361 gfn_t gfn = gpa >> PAGE_SHIFT;
363 if (!(kvmppc_get_msr(vcpu) & MSR_SF))
364 mp_pa = (uint32_t)mp_pa;
366 /* Magic page override */
368 if (unlikely(mp_pa) && unlikely((gpa & KVM_PAM) == mp_pa)) {
369 ulong shared_page = ((ulong)vcpu->arch.shared) & PAGE_MASK;
372 pfn = (pfn_t)virt_to_phys((void*)shared_page) >> PAGE_SHIFT;
373 get_page(pfn_to_page(pfn));
379 return gfn_to_pfn_prot(vcpu->kvm, gfn, writing, writable);
381 EXPORT_SYMBOL_GPL(kvmppc_gpa_to_pfn);
383 static int kvmppc_xlate(struct kvm_vcpu *vcpu, ulong eaddr, bool data,
384 bool iswrite, struct kvmppc_pte *pte)
386 int relocated = (kvmppc_get_msr(vcpu) & (data ? MSR_DR : MSR_IR));
390 r = vcpu->arch.mmu.xlate(vcpu, eaddr, pte, data, iswrite);
393 pte->raddr = eaddr & KVM_PAM;
394 pte->vpage = VSID_REAL | eaddr >> 12;
395 pte->may_read = true;
396 pte->may_write = true;
397 pte->may_execute = true;
400 if ((kvmppc_get_msr(vcpu) & (MSR_IR | MSR_DR)) == MSR_DR &&
402 if ((vcpu->arch.hflags & BOOK3S_HFLAG_SPLIT_HACK) &&
403 ((eaddr & SPLIT_HACK_MASK) == SPLIT_HACK_OFFS))
404 pte->raddr &= ~SPLIT_HACK_MASK;
411 static hva_t kvmppc_bad_hva(void)
416 static hva_t kvmppc_pte_to_hva(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte)
420 hpage = gfn_to_hva(vcpu->kvm, pte->raddr >> PAGE_SHIFT);
421 if (kvm_is_error_hva(hpage))
424 return hpage | (pte->raddr & ~PAGE_MASK);
426 return kvmppc_bad_hva();
429 int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
432 struct kvmppc_pte pte;
437 r = kvmppc_xlate(vcpu, *eaddr, data, true, &pte);
446 if (kvm_write_guest(vcpu->kvm, pte.raddr, ptr, size))
447 return EMULATE_DO_MMIO;
451 EXPORT_SYMBOL_GPL(kvmppc_st);
453 int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
456 struct kvmppc_pte pte;
462 rc = kvmppc_xlate(vcpu, *eaddr, data, false, &pte);
471 if (!data && !pte.may_execute)
474 hva = kvmppc_pte_to_hva(vcpu, &pte);
475 if (kvm_is_error_hva(hva))
478 if (copy_from_user(ptr, (void __user *)hva, size)) {
479 printk(KERN_INFO "kvmppc_ld at 0x%lx failed\n", hva);
486 return EMULATE_DO_MMIO;
488 EXPORT_SYMBOL_GPL(kvmppc_ld);
490 int kvmppc_load_last_inst(struct kvm_vcpu *vcpu, enum instruction_type type,
493 ulong pc = kvmppc_get_pc(vcpu);
499 r = kvmppc_ld(vcpu, &pc, sizeof(u32), inst, false);
500 if (r == EMULATE_DONE)
503 return EMULATE_AGAIN;
505 EXPORT_SYMBOL_GPL(kvmppc_load_last_inst);
507 int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
512 int kvmppc_subarch_vcpu_init(struct kvm_vcpu *vcpu)
517 void kvmppc_subarch_vcpu_uninit(struct kvm_vcpu *vcpu)
521 int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
522 struct kvm_sregs *sregs)
524 return vcpu->kvm->arch.kvm_ops->get_sregs(vcpu, sregs);
527 int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
528 struct kvm_sregs *sregs)
530 return vcpu->kvm->arch.kvm_ops->set_sregs(vcpu, sregs);
533 int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
537 regs->pc = kvmppc_get_pc(vcpu);
538 regs->cr = kvmppc_get_cr(vcpu);
539 regs->ctr = kvmppc_get_ctr(vcpu);
540 regs->lr = kvmppc_get_lr(vcpu);
541 regs->xer = kvmppc_get_xer(vcpu);
542 regs->msr = kvmppc_get_msr(vcpu);
543 regs->srr0 = kvmppc_get_srr0(vcpu);
544 regs->srr1 = kvmppc_get_srr1(vcpu);
545 regs->pid = vcpu->arch.pid;
546 regs->sprg0 = kvmppc_get_sprg0(vcpu);
547 regs->sprg1 = kvmppc_get_sprg1(vcpu);
548 regs->sprg2 = kvmppc_get_sprg2(vcpu);
549 regs->sprg3 = kvmppc_get_sprg3(vcpu);
550 regs->sprg4 = kvmppc_get_sprg4(vcpu);
551 regs->sprg5 = kvmppc_get_sprg5(vcpu);
552 regs->sprg6 = kvmppc_get_sprg6(vcpu);
553 regs->sprg7 = kvmppc_get_sprg7(vcpu);
555 for (i = 0; i < ARRAY_SIZE(regs->gpr); i++)
556 regs->gpr[i] = kvmppc_get_gpr(vcpu, i);
561 int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
565 kvmppc_set_pc(vcpu, regs->pc);
566 kvmppc_set_cr(vcpu, regs->cr);
567 kvmppc_set_ctr(vcpu, regs->ctr);
568 kvmppc_set_lr(vcpu, regs->lr);
569 kvmppc_set_xer(vcpu, regs->xer);
570 kvmppc_set_msr(vcpu, regs->msr);
571 kvmppc_set_srr0(vcpu, regs->srr0);
572 kvmppc_set_srr1(vcpu, regs->srr1);
573 kvmppc_set_sprg0(vcpu, regs->sprg0);
574 kvmppc_set_sprg1(vcpu, regs->sprg1);
575 kvmppc_set_sprg2(vcpu, regs->sprg2);
576 kvmppc_set_sprg3(vcpu, regs->sprg3);
577 kvmppc_set_sprg4(vcpu, regs->sprg4);
578 kvmppc_set_sprg5(vcpu, regs->sprg5);
579 kvmppc_set_sprg6(vcpu, regs->sprg6);
580 kvmppc_set_sprg7(vcpu, regs->sprg7);
582 for (i = 0; i < ARRAY_SIZE(regs->gpr); i++)
583 kvmppc_set_gpr(vcpu, i, regs->gpr[i]);
588 int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
593 int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
598 int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
601 union kvmppc_one_reg val;
605 size = one_reg_size(reg->id);
606 if (size > sizeof(val))
609 r = vcpu->kvm->arch.kvm_ops->get_one_reg(vcpu, reg->id, &val);
613 case KVM_REG_PPC_DAR:
614 val = get_reg_val(reg->id, kvmppc_get_dar(vcpu));
616 case KVM_REG_PPC_DSISR:
617 val = get_reg_val(reg->id, kvmppc_get_dsisr(vcpu));
619 case KVM_REG_PPC_FPR0 ... KVM_REG_PPC_FPR31:
620 i = reg->id - KVM_REG_PPC_FPR0;
621 val = get_reg_val(reg->id, VCPU_FPR(vcpu, i));
623 case KVM_REG_PPC_FPSCR:
624 val = get_reg_val(reg->id, vcpu->arch.fp.fpscr);
626 #ifdef CONFIG_ALTIVEC
627 case KVM_REG_PPC_VR0 ... KVM_REG_PPC_VR31:
628 if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
632 val.vval = vcpu->arch.vr.vr[reg->id - KVM_REG_PPC_VR0];
634 case KVM_REG_PPC_VSCR:
635 if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
639 val = get_reg_val(reg->id, vcpu->arch.vr.vscr.u[3]);
641 case KVM_REG_PPC_VRSAVE:
642 val = get_reg_val(reg->id, vcpu->arch.vrsave);
644 #endif /* CONFIG_ALTIVEC */
646 case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31:
647 if (cpu_has_feature(CPU_FTR_VSX)) {
648 long int i = reg->id - KVM_REG_PPC_VSR0;
649 val.vsxval[0] = vcpu->arch.fp.fpr[i][0];
650 val.vsxval[1] = vcpu->arch.fp.fpr[i][1];
655 #endif /* CONFIG_VSX */
656 case KVM_REG_PPC_DEBUG_INST: {
658 r = copy_to_user((u32 __user *)(long)reg->addr,
659 &opcode, sizeof(u32));
662 #ifdef CONFIG_KVM_XICS
663 case KVM_REG_PPC_ICP_STATE:
664 if (!vcpu->arch.icp) {
668 val = get_reg_val(reg->id, kvmppc_xics_get_icp(vcpu));
670 #endif /* CONFIG_KVM_XICS */
671 case KVM_REG_PPC_FSCR:
672 val = get_reg_val(reg->id, vcpu->arch.fscr);
674 case KVM_REG_PPC_TAR:
675 val = get_reg_val(reg->id, vcpu->arch.tar);
677 case KVM_REG_PPC_EBBHR:
678 val = get_reg_val(reg->id, vcpu->arch.ebbhr);
680 case KVM_REG_PPC_EBBRR:
681 val = get_reg_val(reg->id, vcpu->arch.ebbrr);
683 case KVM_REG_PPC_BESCR:
684 val = get_reg_val(reg->id, vcpu->arch.bescr);
686 case KVM_REG_PPC_VTB:
687 val = get_reg_val(reg->id, vcpu->arch.vtb);
690 val = get_reg_val(reg->id, vcpu->arch.ic);
700 if (copy_to_user((char __user *)(unsigned long)reg->addr, &val, size))
706 int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
709 union kvmppc_one_reg val;
713 size = one_reg_size(reg->id);
714 if (size > sizeof(val))
717 if (copy_from_user(&val, (char __user *)(unsigned long)reg->addr, size))
720 r = vcpu->kvm->arch.kvm_ops->set_one_reg(vcpu, reg->id, &val);
724 case KVM_REG_PPC_DAR:
725 kvmppc_set_dar(vcpu, set_reg_val(reg->id, val));
727 case KVM_REG_PPC_DSISR:
728 kvmppc_set_dsisr(vcpu, set_reg_val(reg->id, val));
730 case KVM_REG_PPC_FPR0 ... KVM_REG_PPC_FPR31:
731 i = reg->id - KVM_REG_PPC_FPR0;
732 VCPU_FPR(vcpu, i) = set_reg_val(reg->id, val);
734 case KVM_REG_PPC_FPSCR:
735 vcpu->arch.fp.fpscr = set_reg_val(reg->id, val);
737 #ifdef CONFIG_ALTIVEC
738 case KVM_REG_PPC_VR0 ... KVM_REG_PPC_VR31:
739 if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
743 vcpu->arch.vr.vr[reg->id - KVM_REG_PPC_VR0] = val.vval;
745 case KVM_REG_PPC_VSCR:
746 if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
750 vcpu->arch.vr.vscr.u[3] = set_reg_val(reg->id, val);
752 case KVM_REG_PPC_VRSAVE:
753 if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
757 vcpu->arch.vrsave = set_reg_val(reg->id, val);
759 #endif /* CONFIG_ALTIVEC */
761 case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31:
762 if (cpu_has_feature(CPU_FTR_VSX)) {
763 long int i = reg->id - KVM_REG_PPC_VSR0;
764 vcpu->arch.fp.fpr[i][0] = val.vsxval[0];
765 vcpu->arch.fp.fpr[i][1] = val.vsxval[1];
770 #endif /* CONFIG_VSX */
771 #ifdef CONFIG_KVM_XICS
772 case KVM_REG_PPC_ICP_STATE:
773 if (!vcpu->arch.icp) {
777 r = kvmppc_xics_set_icp(vcpu,
778 set_reg_val(reg->id, val));
780 #endif /* CONFIG_KVM_XICS */
781 case KVM_REG_PPC_FSCR:
782 vcpu->arch.fscr = set_reg_val(reg->id, val);
784 case KVM_REG_PPC_TAR:
785 vcpu->arch.tar = set_reg_val(reg->id, val);
787 case KVM_REG_PPC_EBBHR:
788 vcpu->arch.ebbhr = set_reg_val(reg->id, val);
790 case KVM_REG_PPC_EBBRR:
791 vcpu->arch.ebbrr = set_reg_val(reg->id, val);
793 case KVM_REG_PPC_BESCR:
794 vcpu->arch.bescr = set_reg_val(reg->id, val);
796 case KVM_REG_PPC_VTB:
797 vcpu->arch.vtb = set_reg_val(reg->id, val);
800 vcpu->arch.ic = set_reg_val(reg->id, val);
811 void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
813 vcpu->kvm->arch.kvm_ops->vcpu_load(vcpu, cpu);
816 void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu)
818 vcpu->kvm->arch.kvm_ops->vcpu_put(vcpu);
821 void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 msr)
823 vcpu->kvm->arch.kvm_ops->set_msr(vcpu, msr);
825 EXPORT_SYMBOL_GPL(kvmppc_set_msr);
827 int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
829 return vcpu->kvm->arch.kvm_ops->vcpu_run(kvm_run, vcpu);
832 int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
833 struct kvm_translation *tr)
838 int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
839 struct kvm_guest_debug *dbg)
844 void kvmppc_decrementer_func(unsigned long data)
846 struct kvm_vcpu *vcpu = (struct kvm_vcpu *)data;
848 kvmppc_core_queue_dec(vcpu);
852 struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
854 return kvm->arch.kvm_ops->vcpu_create(kvm, id);
857 void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
859 vcpu->kvm->arch.kvm_ops->vcpu_free(vcpu);
862 int kvmppc_core_check_requests(struct kvm_vcpu *vcpu)
864 return vcpu->kvm->arch.kvm_ops->check_requests(vcpu);
867 int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log *log)
869 return kvm->arch.kvm_ops->get_dirty_log(kvm, log);
872 void kvmppc_core_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free,
873 struct kvm_memory_slot *dont)
875 kvm->arch.kvm_ops->free_memslot(free, dont);
878 int kvmppc_core_create_memslot(struct kvm *kvm, struct kvm_memory_slot *slot,
879 unsigned long npages)
881 return kvm->arch.kvm_ops->create_memslot(slot, npages);
884 void kvmppc_core_flush_memslot(struct kvm *kvm, struct kvm_memory_slot *memslot)
886 kvm->arch.kvm_ops->flush_memslot(kvm, memslot);
889 int kvmppc_core_prepare_memory_region(struct kvm *kvm,
890 struct kvm_memory_slot *memslot,
891 struct kvm_userspace_memory_region *mem)
893 return kvm->arch.kvm_ops->prepare_memory_region(kvm, memslot, mem);
896 void kvmppc_core_commit_memory_region(struct kvm *kvm,
897 struct kvm_userspace_memory_region *mem,
898 const struct kvm_memory_slot *old)
900 kvm->arch.kvm_ops->commit_memory_region(kvm, mem, old);
903 int kvm_unmap_hva(struct kvm *kvm, unsigned long hva)
905 return kvm->arch.kvm_ops->unmap_hva(kvm, hva);
907 EXPORT_SYMBOL_GPL(kvm_unmap_hva);
909 int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end)
911 return kvm->arch.kvm_ops->unmap_hva_range(kvm, start, end);
914 int kvm_age_hva(struct kvm *kvm, unsigned long hva)
916 return kvm->arch.kvm_ops->age_hva(kvm, hva);
919 int kvm_test_age_hva(struct kvm *kvm, unsigned long hva)
921 return kvm->arch.kvm_ops->test_age_hva(kvm, hva);
924 void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte)
926 kvm->arch.kvm_ops->set_spte_hva(kvm, hva, pte);
929 void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu)
931 vcpu->kvm->arch.kvm_ops->mmu_destroy(vcpu);
934 int kvmppc_core_init_vm(struct kvm *kvm)
938 INIT_LIST_HEAD(&kvm->arch.spapr_tce_tables);
939 INIT_LIST_HEAD(&kvm->arch.rtas_tokens);
942 return kvm->arch.kvm_ops->init_vm(kvm);
945 void kvmppc_core_destroy_vm(struct kvm *kvm)
947 kvm->arch.kvm_ops->destroy_vm(kvm);
950 kvmppc_rtas_tokens_free(kvm);
951 WARN_ON(!list_empty(&kvm->arch.spapr_tce_tables));
955 int kvmppc_core_check_processor_compat(void)
958 * We always return 0 for book3s. We check
959 * for compatability while loading the HV
965 int kvmppc_book3s_hcall_implemented(struct kvm *kvm, unsigned long hcall)
967 return kvm->arch.kvm_ops->hcall_implemented(hcall);
970 static int kvmppc_book3s_init(void)
974 r = kvm_init(NULL, sizeof(struct kvm_vcpu), 0, THIS_MODULE);
977 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
978 r = kvmppc_book3s_init_pr();
984 static void kvmppc_book3s_exit(void)
986 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
987 kvmppc_book3s_exit_pr();
992 module_init(kvmppc_book3s_init);
993 module_exit(kvmppc_book3s_exit);
995 /* On 32bit this is our one and only kernel module */
996 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
997 MODULE_ALIAS_MISCDEV(KVM_MINOR);
998 MODULE_ALIAS("devname:kvm");