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>
23 #include <linux/gfp.h>
24 #include <linux/sched.h>
25 #include <linux/vmalloc.h>
26 #include <linux/highmem.h>
29 #include <asm/cputable.h>
30 #include <asm/cacheflush.h>
31 #include <asm/tlbflush.h>
32 #include <linux/uaccess.h>
34 #include <asm/kvm_ppc.h>
35 #include <asm/kvm_book3s.h>
36 #include <asm/mmu_context.h>
43 #define VCPU_STAT(x) offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU
45 /* #define EXIT_DEBUG */
47 struct kvm_stats_debugfs_item debugfs_entries[] = {
48 { "exits", VCPU_STAT(sum_exits) },
49 { "mmio", VCPU_STAT(mmio_exits) },
50 { "sig", VCPU_STAT(signal_exits) },
51 { "sysc", VCPU_STAT(syscall_exits) },
52 { "inst_emu", VCPU_STAT(emulated_inst_exits) },
53 { "dec", VCPU_STAT(dec_exits) },
54 { "ext_intr", VCPU_STAT(ext_intr_exits) },
55 { "queue_intr", VCPU_STAT(queue_intr) },
56 { "halt_poll_success_ns", VCPU_STAT(halt_poll_success_ns) },
57 { "halt_poll_fail_ns", VCPU_STAT(halt_poll_fail_ns) },
58 { "halt_wait_ns", VCPU_STAT(halt_wait_ns) },
59 { "halt_successful_poll", VCPU_STAT(halt_successful_poll), },
60 { "halt_attempted_poll", VCPU_STAT(halt_attempted_poll), },
61 { "halt_successful_wait", VCPU_STAT(halt_successful_wait) },
62 { "halt_poll_invalid", VCPU_STAT(halt_poll_invalid) },
63 { "halt_wakeup", VCPU_STAT(halt_wakeup) },
64 { "pf_storage", VCPU_STAT(pf_storage) },
65 { "sp_storage", VCPU_STAT(sp_storage) },
66 { "pf_instruc", VCPU_STAT(pf_instruc) },
67 { "sp_instruc", VCPU_STAT(sp_instruc) },
68 { "ld", VCPU_STAT(ld) },
69 { "ld_slow", VCPU_STAT(ld_slow) },
70 { "st", VCPU_STAT(st) },
71 { "st_slow", VCPU_STAT(st_slow) },
72 { "pthru_all", VCPU_STAT(pthru_all) },
73 { "pthru_host", VCPU_STAT(pthru_host) },
74 { "pthru_bad_aff", VCPU_STAT(pthru_bad_aff) },
78 void kvmppc_unfixup_split_real(struct kvm_vcpu *vcpu)
80 if (vcpu->arch.hflags & BOOK3S_HFLAG_SPLIT_HACK) {
81 ulong pc = kvmppc_get_pc(vcpu);
82 if ((pc & SPLIT_HACK_MASK) == SPLIT_HACK_OFFS)
83 kvmppc_set_pc(vcpu, pc & ~SPLIT_HACK_MASK);
84 vcpu->arch.hflags &= ~BOOK3S_HFLAG_SPLIT_HACK;
87 EXPORT_SYMBOL_GPL(kvmppc_unfixup_split_real);
89 static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu)
91 if (!is_kvmppc_hv_enabled(vcpu->kvm))
92 return to_book3s(vcpu)->hior;
96 static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu,
97 unsigned long pending_now, unsigned long old_pending)
99 if (is_kvmppc_hv_enabled(vcpu->kvm))
102 kvmppc_set_int_pending(vcpu, 1);
103 else if (old_pending)
104 kvmppc_set_int_pending(vcpu, 0);
107 static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu)
113 if (is_kvmppc_hv_enabled(vcpu->kvm))
116 crit_raw = kvmppc_get_critical(vcpu);
117 crit_r1 = kvmppc_get_gpr(vcpu, 1);
119 /* Truncate crit indicators in 32 bit mode */
120 if (!(kvmppc_get_msr(vcpu) & MSR_SF)) {
121 crit_raw &= 0xffffffff;
122 crit_r1 &= 0xffffffff;
125 /* Critical section when crit == r1 */
126 crit = (crit_raw == crit_r1);
127 /* ... and we're in supervisor mode */
128 crit = crit && !(kvmppc_get_msr(vcpu) & MSR_PR);
133 void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags)
135 kvmppc_unfixup_split_real(vcpu);
136 kvmppc_set_srr0(vcpu, kvmppc_get_pc(vcpu));
137 kvmppc_set_srr1(vcpu, kvmppc_get_msr(vcpu) | flags);
138 kvmppc_set_pc(vcpu, kvmppc_interrupt_offset(vcpu) + vec);
139 vcpu->arch.mmu.reset_msr(vcpu);
142 static int kvmppc_book3s_vec2irqprio(unsigned int vec)
147 case 0x100: prio = BOOK3S_IRQPRIO_SYSTEM_RESET; break;
148 case 0x200: prio = BOOK3S_IRQPRIO_MACHINE_CHECK; break;
149 case 0x300: prio = BOOK3S_IRQPRIO_DATA_STORAGE; break;
150 case 0x380: prio = BOOK3S_IRQPRIO_DATA_SEGMENT; break;
151 case 0x400: prio = BOOK3S_IRQPRIO_INST_STORAGE; break;
152 case 0x480: prio = BOOK3S_IRQPRIO_INST_SEGMENT; break;
153 case 0x500: prio = BOOK3S_IRQPRIO_EXTERNAL; break;
154 case 0x501: prio = BOOK3S_IRQPRIO_EXTERNAL_LEVEL; break;
155 case 0x600: prio = BOOK3S_IRQPRIO_ALIGNMENT; break;
156 case 0x700: prio = BOOK3S_IRQPRIO_PROGRAM; break;
157 case 0x800: prio = BOOK3S_IRQPRIO_FP_UNAVAIL; break;
158 case 0x900: prio = BOOK3S_IRQPRIO_DECREMENTER; break;
159 case 0xc00: prio = BOOK3S_IRQPRIO_SYSCALL; break;
160 case 0xd00: prio = BOOK3S_IRQPRIO_DEBUG; break;
161 case 0xf20: prio = BOOK3S_IRQPRIO_ALTIVEC; break;
162 case 0xf40: prio = BOOK3S_IRQPRIO_VSX; break;
163 case 0xf60: prio = BOOK3S_IRQPRIO_FAC_UNAVAIL; break;
164 default: prio = BOOK3S_IRQPRIO_MAX; break;
170 void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu *vcpu,
173 unsigned long old_pending = vcpu->arch.pending_exceptions;
175 clear_bit(kvmppc_book3s_vec2irqprio(vec),
176 &vcpu->arch.pending_exceptions);
178 kvmppc_update_int_pending(vcpu, vcpu->arch.pending_exceptions,
182 void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec)
184 vcpu->stat.queue_intr++;
186 set_bit(kvmppc_book3s_vec2irqprio(vec),
187 &vcpu->arch.pending_exceptions);
189 printk(KERN_INFO "Queueing interrupt %x\n", vec);
192 EXPORT_SYMBOL_GPL(kvmppc_book3s_queue_irqprio);
194 void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags)
196 /* might as well deliver this straight away */
197 kvmppc_inject_interrupt(vcpu, BOOK3S_INTERRUPT_PROGRAM, flags);
199 EXPORT_SYMBOL_GPL(kvmppc_core_queue_program);
201 void kvmppc_core_queue_fpunavail(struct kvm_vcpu *vcpu)
203 /* might as well deliver this straight away */
204 kvmppc_inject_interrupt(vcpu, BOOK3S_INTERRUPT_FP_UNAVAIL, 0);
207 void kvmppc_core_queue_vec_unavail(struct kvm_vcpu *vcpu)
209 /* might as well deliver this straight away */
210 kvmppc_inject_interrupt(vcpu, BOOK3S_INTERRUPT_ALTIVEC, 0);
213 void kvmppc_core_queue_vsx_unavail(struct kvm_vcpu *vcpu)
215 /* might as well deliver this straight away */
216 kvmppc_inject_interrupt(vcpu, BOOK3S_INTERRUPT_VSX, 0);
219 void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu)
221 kvmppc_book3s_queue_irqprio(vcpu, BOOK3S_INTERRUPT_DECREMENTER);
223 EXPORT_SYMBOL_GPL(kvmppc_core_queue_dec);
225 int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu)
227 return test_bit(BOOK3S_IRQPRIO_DECREMENTER, &vcpu->arch.pending_exceptions);
229 EXPORT_SYMBOL_GPL(kvmppc_core_pending_dec);
231 void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu)
233 kvmppc_book3s_dequeue_irqprio(vcpu, BOOK3S_INTERRUPT_DECREMENTER);
235 EXPORT_SYMBOL_GPL(kvmppc_core_dequeue_dec);
237 void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,
238 struct kvm_interrupt *irq)
240 unsigned int vec = BOOK3S_INTERRUPT_EXTERNAL;
242 if (irq->irq == KVM_INTERRUPT_SET_LEVEL)
243 vec = BOOK3S_INTERRUPT_EXTERNAL_LEVEL;
245 kvmppc_book3s_queue_irqprio(vcpu, vec);
248 void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu)
250 kvmppc_book3s_dequeue_irqprio(vcpu, BOOK3S_INTERRUPT_EXTERNAL);
251 kvmppc_book3s_dequeue_irqprio(vcpu, BOOK3S_INTERRUPT_EXTERNAL_LEVEL);
254 void kvmppc_core_queue_data_storage(struct kvm_vcpu *vcpu, ulong dar,
257 kvmppc_set_dar(vcpu, dar);
258 kvmppc_set_dsisr(vcpu, flags);
259 kvmppc_book3s_queue_irqprio(vcpu, BOOK3S_INTERRUPT_DATA_STORAGE);
261 EXPORT_SYMBOL_GPL(kvmppc_core_queue_data_storage); /* used by kvm_hv */
263 void kvmppc_core_queue_inst_storage(struct kvm_vcpu *vcpu, ulong flags)
265 u64 msr = kvmppc_get_msr(vcpu);
266 msr &= ~(SRR1_ISI_NOPT | SRR1_ISI_N_OR_G | SRR1_ISI_PROT);
267 msr |= flags & (SRR1_ISI_NOPT | SRR1_ISI_N_OR_G | SRR1_ISI_PROT);
268 kvmppc_set_msr_fast(vcpu, msr);
269 kvmppc_book3s_queue_irqprio(vcpu, BOOK3S_INTERRUPT_INST_STORAGE);
272 static int kvmppc_book3s_irqprio_deliver(struct kvm_vcpu *vcpu,
273 unsigned int priority)
277 bool crit = kvmppc_critical_section(vcpu);
280 case BOOK3S_IRQPRIO_DECREMENTER:
281 deliver = (kvmppc_get_msr(vcpu) & MSR_EE) && !crit;
282 vec = BOOK3S_INTERRUPT_DECREMENTER;
284 case BOOK3S_IRQPRIO_EXTERNAL:
285 case BOOK3S_IRQPRIO_EXTERNAL_LEVEL:
286 deliver = (kvmppc_get_msr(vcpu) & MSR_EE) && !crit;
287 vec = BOOK3S_INTERRUPT_EXTERNAL;
289 case BOOK3S_IRQPRIO_SYSTEM_RESET:
290 vec = BOOK3S_INTERRUPT_SYSTEM_RESET;
292 case BOOK3S_IRQPRIO_MACHINE_CHECK:
293 vec = BOOK3S_INTERRUPT_MACHINE_CHECK;
295 case BOOK3S_IRQPRIO_DATA_STORAGE:
296 vec = BOOK3S_INTERRUPT_DATA_STORAGE;
298 case BOOK3S_IRQPRIO_INST_STORAGE:
299 vec = BOOK3S_INTERRUPT_INST_STORAGE;
301 case BOOK3S_IRQPRIO_DATA_SEGMENT:
302 vec = BOOK3S_INTERRUPT_DATA_SEGMENT;
304 case BOOK3S_IRQPRIO_INST_SEGMENT:
305 vec = BOOK3S_INTERRUPT_INST_SEGMENT;
307 case BOOK3S_IRQPRIO_ALIGNMENT:
308 vec = BOOK3S_INTERRUPT_ALIGNMENT;
310 case BOOK3S_IRQPRIO_PROGRAM:
311 vec = BOOK3S_INTERRUPT_PROGRAM;
313 case BOOK3S_IRQPRIO_VSX:
314 vec = BOOK3S_INTERRUPT_VSX;
316 case BOOK3S_IRQPRIO_ALTIVEC:
317 vec = BOOK3S_INTERRUPT_ALTIVEC;
319 case BOOK3S_IRQPRIO_FP_UNAVAIL:
320 vec = BOOK3S_INTERRUPT_FP_UNAVAIL;
322 case BOOK3S_IRQPRIO_SYSCALL:
323 vec = BOOK3S_INTERRUPT_SYSCALL;
325 case BOOK3S_IRQPRIO_DEBUG:
326 vec = BOOK3S_INTERRUPT_TRACE;
328 case BOOK3S_IRQPRIO_PERFORMANCE_MONITOR:
329 vec = BOOK3S_INTERRUPT_PERFMON;
331 case BOOK3S_IRQPRIO_FAC_UNAVAIL:
332 vec = BOOK3S_INTERRUPT_FAC_UNAVAIL;
336 printk(KERN_ERR "KVM: Unknown interrupt: 0x%x\n", priority);
341 printk(KERN_INFO "Deliver interrupt 0x%x? %x\n", vec, deliver);
345 kvmppc_inject_interrupt(vcpu, vec, 0);
351 * This function determines if an irqprio should be cleared once issued.
353 static bool clear_irqprio(struct kvm_vcpu *vcpu, unsigned int priority)
356 case BOOK3S_IRQPRIO_DECREMENTER:
357 /* DEC interrupts get cleared by mtdec */
359 case BOOK3S_IRQPRIO_EXTERNAL_LEVEL:
360 /* External interrupts get cleared by userspace */
367 int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu)
369 unsigned long *pending = &vcpu->arch.pending_exceptions;
370 unsigned long old_pending = vcpu->arch.pending_exceptions;
371 unsigned int priority;
374 if (vcpu->arch.pending_exceptions)
375 printk(KERN_EMERG "KVM: Check pending: %lx\n", vcpu->arch.pending_exceptions);
377 priority = __ffs(*pending);
378 while (priority < BOOK3S_IRQPRIO_MAX) {
379 if (kvmppc_book3s_irqprio_deliver(vcpu, priority) &&
380 clear_irqprio(vcpu, priority)) {
381 clear_bit(priority, &vcpu->arch.pending_exceptions);
385 priority = find_next_bit(pending,
386 BITS_PER_BYTE * sizeof(*pending),
390 /* Tell the guest about our interrupt status */
391 kvmppc_update_int_pending(vcpu, *pending, old_pending);
395 EXPORT_SYMBOL_GPL(kvmppc_core_prepare_to_enter);
397 kvm_pfn_t kvmppc_gpa_to_pfn(struct kvm_vcpu *vcpu, gpa_t gpa, bool writing,
400 ulong mp_pa = vcpu->arch.magic_page_pa & KVM_PAM;
401 gfn_t gfn = gpa >> PAGE_SHIFT;
403 if (!(kvmppc_get_msr(vcpu) & MSR_SF))
404 mp_pa = (uint32_t)mp_pa;
406 /* Magic page override */
408 if (unlikely(mp_pa) && unlikely((gpa & KVM_PAM) == mp_pa)) {
409 ulong shared_page = ((ulong)vcpu->arch.shared) & PAGE_MASK;
412 pfn = (kvm_pfn_t)virt_to_phys((void*)shared_page) >> PAGE_SHIFT;
413 get_page(pfn_to_page(pfn));
419 return gfn_to_pfn_prot(vcpu->kvm, gfn, writing, writable);
421 EXPORT_SYMBOL_GPL(kvmppc_gpa_to_pfn);
423 int kvmppc_xlate(struct kvm_vcpu *vcpu, ulong eaddr, enum xlate_instdata xlid,
424 enum xlate_readwrite xlrw, struct kvmppc_pte *pte)
426 bool data = (xlid == XLATE_DATA);
427 bool iswrite = (xlrw == XLATE_WRITE);
428 int relocated = (kvmppc_get_msr(vcpu) & (data ? MSR_DR : MSR_IR));
432 r = vcpu->arch.mmu.xlate(vcpu, eaddr, pte, data, iswrite);
435 pte->raddr = eaddr & KVM_PAM;
436 pte->vpage = VSID_REAL | eaddr >> 12;
437 pte->may_read = true;
438 pte->may_write = true;
439 pte->may_execute = true;
442 if ((kvmppc_get_msr(vcpu) & (MSR_IR | MSR_DR)) == MSR_DR &&
444 if ((vcpu->arch.hflags & BOOK3S_HFLAG_SPLIT_HACK) &&
445 ((eaddr & SPLIT_HACK_MASK) == SPLIT_HACK_OFFS))
446 pte->raddr &= ~SPLIT_HACK_MASK;
453 int kvmppc_load_last_inst(struct kvm_vcpu *vcpu,
454 enum instruction_fetch_type type, u32 *inst)
456 ulong pc = kvmppc_get_pc(vcpu);
462 r = kvmppc_ld(vcpu, &pc, sizeof(u32), inst, false);
463 if (r == EMULATE_DONE)
466 return EMULATE_AGAIN;
468 EXPORT_SYMBOL_GPL(kvmppc_load_last_inst);
470 int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
475 int kvmppc_subarch_vcpu_init(struct kvm_vcpu *vcpu)
480 void kvmppc_subarch_vcpu_uninit(struct kvm_vcpu *vcpu)
484 int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
485 struct kvm_sregs *sregs)
490 ret = vcpu->kvm->arch.kvm_ops->get_sregs(vcpu, sregs);
496 int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
497 struct kvm_sregs *sregs)
502 ret = vcpu->kvm->arch.kvm_ops->set_sregs(vcpu, sregs);
508 int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
512 regs->pc = kvmppc_get_pc(vcpu);
513 regs->cr = kvmppc_get_cr(vcpu);
514 regs->ctr = kvmppc_get_ctr(vcpu);
515 regs->lr = kvmppc_get_lr(vcpu);
516 regs->xer = kvmppc_get_xer(vcpu);
517 regs->msr = kvmppc_get_msr(vcpu);
518 regs->srr0 = kvmppc_get_srr0(vcpu);
519 regs->srr1 = kvmppc_get_srr1(vcpu);
520 regs->pid = vcpu->arch.pid;
521 regs->sprg0 = kvmppc_get_sprg0(vcpu);
522 regs->sprg1 = kvmppc_get_sprg1(vcpu);
523 regs->sprg2 = kvmppc_get_sprg2(vcpu);
524 regs->sprg3 = kvmppc_get_sprg3(vcpu);
525 regs->sprg4 = kvmppc_get_sprg4(vcpu);
526 regs->sprg5 = kvmppc_get_sprg5(vcpu);
527 regs->sprg6 = kvmppc_get_sprg6(vcpu);
528 regs->sprg7 = kvmppc_get_sprg7(vcpu);
530 for (i = 0; i < ARRAY_SIZE(regs->gpr); i++)
531 regs->gpr[i] = kvmppc_get_gpr(vcpu, i);
536 int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
540 kvmppc_set_pc(vcpu, regs->pc);
541 kvmppc_set_cr(vcpu, regs->cr);
542 kvmppc_set_ctr(vcpu, regs->ctr);
543 kvmppc_set_lr(vcpu, regs->lr);
544 kvmppc_set_xer(vcpu, regs->xer);
545 kvmppc_set_msr(vcpu, regs->msr);
546 kvmppc_set_srr0(vcpu, regs->srr0);
547 kvmppc_set_srr1(vcpu, regs->srr1);
548 kvmppc_set_sprg0(vcpu, regs->sprg0);
549 kvmppc_set_sprg1(vcpu, regs->sprg1);
550 kvmppc_set_sprg2(vcpu, regs->sprg2);
551 kvmppc_set_sprg3(vcpu, regs->sprg3);
552 kvmppc_set_sprg4(vcpu, regs->sprg4);
553 kvmppc_set_sprg5(vcpu, regs->sprg5);
554 kvmppc_set_sprg6(vcpu, regs->sprg6);
555 kvmppc_set_sprg7(vcpu, regs->sprg7);
557 for (i = 0; i < ARRAY_SIZE(regs->gpr); i++)
558 kvmppc_set_gpr(vcpu, i, regs->gpr[i]);
563 int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
568 int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
573 int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id,
574 union kvmppc_one_reg *val)
579 r = vcpu->kvm->arch.kvm_ops->get_one_reg(vcpu, id, val);
583 case KVM_REG_PPC_DAR:
584 *val = get_reg_val(id, kvmppc_get_dar(vcpu));
586 case KVM_REG_PPC_DSISR:
587 *val = get_reg_val(id, kvmppc_get_dsisr(vcpu));
589 case KVM_REG_PPC_FPR0 ... KVM_REG_PPC_FPR31:
590 i = id - KVM_REG_PPC_FPR0;
591 *val = get_reg_val(id, VCPU_FPR(vcpu, i));
593 case KVM_REG_PPC_FPSCR:
594 *val = get_reg_val(id, vcpu->arch.fp.fpscr);
597 case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31:
598 if (cpu_has_feature(CPU_FTR_VSX)) {
599 i = id - KVM_REG_PPC_VSR0;
600 val->vsxval[0] = vcpu->arch.fp.fpr[i][0];
601 val->vsxval[1] = vcpu->arch.fp.fpr[i][1];
606 #endif /* CONFIG_VSX */
607 case KVM_REG_PPC_DEBUG_INST:
608 *val = get_reg_val(id, INS_TW);
610 #ifdef CONFIG_KVM_XICS
611 case KVM_REG_PPC_ICP_STATE:
612 if (!vcpu->arch.icp && !vcpu->arch.xive_vcpu) {
617 *val = get_reg_val(id, kvmppc_xive_get_icp(vcpu));
619 *val = get_reg_val(id, kvmppc_xics_get_icp(vcpu));
621 #endif /* CONFIG_KVM_XICS */
622 case KVM_REG_PPC_FSCR:
623 *val = get_reg_val(id, vcpu->arch.fscr);
625 case KVM_REG_PPC_TAR:
626 *val = get_reg_val(id, vcpu->arch.tar);
628 case KVM_REG_PPC_EBBHR:
629 *val = get_reg_val(id, vcpu->arch.ebbhr);
631 case KVM_REG_PPC_EBBRR:
632 *val = get_reg_val(id, vcpu->arch.ebbrr);
634 case KVM_REG_PPC_BESCR:
635 *val = get_reg_val(id, vcpu->arch.bescr);
638 *val = get_reg_val(id, vcpu->arch.ic);
649 int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id,
650 union kvmppc_one_reg *val)
655 r = vcpu->kvm->arch.kvm_ops->set_one_reg(vcpu, id, val);
659 case KVM_REG_PPC_DAR:
660 kvmppc_set_dar(vcpu, set_reg_val(id, *val));
662 case KVM_REG_PPC_DSISR:
663 kvmppc_set_dsisr(vcpu, set_reg_val(id, *val));
665 case KVM_REG_PPC_FPR0 ... KVM_REG_PPC_FPR31:
666 i = id - KVM_REG_PPC_FPR0;
667 VCPU_FPR(vcpu, i) = set_reg_val(id, *val);
669 case KVM_REG_PPC_FPSCR:
670 vcpu->arch.fp.fpscr = set_reg_val(id, *val);
673 case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31:
674 if (cpu_has_feature(CPU_FTR_VSX)) {
675 i = id - KVM_REG_PPC_VSR0;
676 vcpu->arch.fp.fpr[i][0] = val->vsxval[0];
677 vcpu->arch.fp.fpr[i][1] = val->vsxval[1];
682 #endif /* CONFIG_VSX */
683 #ifdef CONFIG_KVM_XICS
684 case KVM_REG_PPC_ICP_STATE:
685 if (!vcpu->arch.icp && !vcpu->arch.xive_vcpu) {
690 r = kvmppc_xive_set_icp(vcpu, set_reg_val(id, *val));
692 r = kvmppc_xics_set_icp(vcpu, set_reg_val(id, *val));
694 #endif /* CONFIG_KVM_XICS */
695 case KVM_REG_PPC_FSCR:
696 vcpu->arch.fscr = set_reg_val(id, *val);
698 case KVM_REG_PPC_TAR:
699 vcpu->arch.tar = set_reg_val(id, *val);
701 case KVM_REG_PPC_EBBHR:
702 vcpu->arch.ebbhr = set_reg_val(id, *val);
704 case KVM_REG_PPC_EBBRR:
705 vcpu->arch.ebbrr = set_reg_val(id, *val);
707 case KVM_REG_PPC_BESCR:
708 vcpu->arch.bescr = set_reg_val(id, *val);
711 vcpu->arch.ic = set_reg_val(id, *val);
722 void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
724 vcpu->kvm->arch.kvm_ops->vcpu_load(vcpu, cpu);
727 void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu)
729 vcpu->kvm->arch.kvm_ops->vcpu_put(vcpu);
732 void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 msr)
734 vcpu->kvm->arch.kvm_ops->set_msr(vcpu, msr);
736 EXPORT_SYMBOL_GPL(kvmppc_set_msr);
738 int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
740 return vcpu->kvm->arch.kvm_ops->vcpu_run(kvm_run, vcpu);
743 int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
744 struct kvm_translation *tr)
749 int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
750 struct kvm_guest_debug *dbg)
753 vcpu->guest_debug = dbg->control;
758 void kvmppc_decrementer_func(struct kvm_vcpu *vcpu)
760 kvmppc_core_queue_dec(vcpu);
764 struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
766 return kvm->arch.kvm_ops->vcpu_create(kvm, id);
769 void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
771 vcpu->kvm->arch.kvm_ops->vcpu_free(vcpu);
774 int kvmppc_core_check_requests(struct kvm_vcpu *vcpu)
776 return vcpu->kvm->arch.kvm_ops->check_requests(vcpu);
779 int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log *log)
781 return kvm->arch.kvm_ops->get_dirty_log(kvm, log);
784 void kvmppc_core_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free,
785 struct kvm_memory_slot *dont)
787 kvm->arch.kvm_ops->free_memslot(free, dont);
790 int kvmppc_core_create_memslot(struct kvm *kvm, struct kvm_memory_slot *slot,
791 unsigned long npages)
793 return kvm->arch.kvm_ops->create_memslot(slot, npages);
796 void kvmppc_core_flush_memslot(struct kvm *kvm, struct kvm_memory_slot *memslot)
798 kvm->arch.kvm_ops->flush_memslot(kvm, memslot);
801 int kvmppc_core_prepare_memory_region(struct kvm *kvm,
802 struct kvm_memory_slot *memslot,
803 const struct kvm_userspace_memory_region *mem)
805 return kvm->arch.kvm_ops->prepare_memory_region(kvm, memslot, mem);
808 void kvmppc_core_commit_memory_region(struct kvm *kvm,
809 const struct kvm_userspace_memory_region *mem,
810 const struct kvm_memory_slot *old,
811 const struct kvm_memory_slot *new)
813 kvm->arch.kvm_ops->commit_memory_region(kvm, mem, old, new);
816 int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end)
818 return kvm->arch.kvm_ops->unmap_hva_range(kvm, start, end);
821 int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end)
823 return kvm->arch.kvm_ops->age_hva(kvm, start, end);
826 int kvm_test_age_hva(struct kvm *kvm, unsigned long hva)
828 return kvm->arch.kvm_ops->test_age_hva(kvm, hva);
831 void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte)
833 kvm->arch.kvm_ops->set_spte_hva(kvm, hva, pte);
836 void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu)
838 vcpu->kvm->arch.kvm_ops->mmu_destroy(vcpu);
841 int kvmppc_core_init_vm(struct kvm *kvm)
845 INIT_LIST_HEAD_RCU(&kvm->arch.spapr_tce_tables);
846 INIT_LIST_HEAD(&kvm->arch.rtas_tokens);
849 return kvm->arch.kvm_ops->init_vm(kvm);
852 void kvmppc_core_destroy_vm(struct kvm *kvm)
854 kvm->arch.kvm_ops->destroy_vm(kvm);
857 kvmppc_rtas_tokens_free(kvm);
858 WARN_ON(!list_empty(&kvm->arch.spapr_tce_tables));
862 int kvmppc_h_logical_ci_load(struct kvm_vcpu *vcpu)
864 unsigned long size = kvmppc_get_gpr(vcpu, 4);
865 unsigned long addr = kvmppc_get_gpr(vcpu, 5);
870 if (!is_power_of_2(size) || (size > sizeof(buf)))
873 srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
874 ret = kvm_io_bus_read(vcpu, KVM_MMIO_BUS, addr, size, &buf);
875 srcu_read_unlock(&vcpu->kvm->srcu, srcu_idx);
881 kvmppc_set_gpr(vcpu, 4, *(u8 *)&buf);
885 kvmppc_set_gpr(vcpu, 4, be16_to_cpu(*(__be16 *)&buf));
889 kvmppc_set_gpr(vcpu, 4, be32_to_cpu(*(__be32 *)&buf));
893 kvmppc_set_gpr(vcpu, 4, be64_to_cpu(*(__be64 *)&buf));
902 EXPORT_SYMBOL_GPL(kvmppc_h_logical_ci_load);
904 int kvmppc_h_logical_ci_store(struct kvm_vcpu *vcpu)
906 unsigned long size = kvmppc_get_gpr(vcpu, 4);
907 unsigned long addr = kvmppc_get_gpr(vcpu, 5);
908 unsigned long val = kvmppc_get_gpr(vcpu, 6);
919 *(__be16 *)&buf = cpu_to_be16(val);
923 *(__be32 *)&buf = cpu_to_be32(val);
927 *(__be64 *)&buf = cpu_to_be64(val);
934 srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
935 ret = kvm_io_bus_write(vcpu, KVM_MMIO_BUS, addr, size, &buf);
936 srcu_read_unlock(&vcpu->kvm->srcu, srcu_idx);
942 EXPORT_SYMBOL_GPL(kvmppc_h_logical_ci_store);
944 int kvmppc_core_check_processor_compat(void)
947 * We always return 0 for book3s. We check
948 * for compatibility while loading the HV
954 int kvmppc_book3s_hcall_implemented(struct kvm *kvm, unsigned long hcall)
956 return kvm->arch.kvm_ops->hcall_implemented(hcall);
959 #ifdef CONFIG_KVM_XICS
960 int kvm_set_irq(struct kvm *kvm, int irq_source_id, u32 irq, int level,
964 return kvmppc_xive_set_irq(kvm, irq_source_id, irq, level,
967 return kvmppc_xics_set_irq(kvm, irq_source_id, irq, level,
971 int kvm_arch_set_irq_inatomic(struct kvm_kernel_irq_routing_entry *irq_entry,
972 struct kvm *kvm, int irq_source_id,
973 int level, bool line_status)
975 return kvm_set_irq(kvm, irq_source_id, irq_entry->gsi,
978 static int kvmppc_book3s_set_irq(struct kvm_kernel_irq_routing_entry *e,
979 struct kvm *kvm, int irq_source_id, int level,
982 return kvm_set_irq(kvm, irq_source_id, e->gsi, level, line_status);
985 int kvm_irq_map_gsi(struct kvm *kvm,
986 struct kvm_kernel_irq_routing_entry *entries, int gsi)
989 entries->type = KVM_IRQ_ROUTING_IRQCHIP;
990 entries->set = kvmppc_book3s_set_irq;
991 entries->irqchip.irqchip = 0;
992 entries->irqchip.pin = gsi;
996 int kvm_irq_map_chip_pin(struct kvm *kvm, unsigned irqchip, unsigned pin)
1001 #endif /* CONFIG_KVM_XICS */
1003 static int kvmppc_book3s_init(void)
1007 r = kvm_init(NULL, sizeof(struct kvm_vcpu), 0, THIS_MODULE);
1010 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
1011 r = kvmppc_book3s_init_pr();
1014 #ifdef CONFIG_KVM_XICS
1015 #ifdef CONFIG_KVM_XIVE
1016 if (xive_enabled()) {
1017 kvmppc_xive_init_module();
1018 kvm_register_device_ops(&kvm_xive_ops, KVM_DEV_TYPE_XICS);
1021 kvm_register_device_ops(&kvm_xics_ops, KVM_DEV_TYPE_XICS);
1026 static void kvmppc_book3s_exit(void)
1028 #ifdef CONFIG_KVM_XICS
1030 kvmppc_xive_exit_module();
1032 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
1033 kvmppc_book3s_exit_pr();
1038 module_init(kvmppc_book3s_init);
1039 module_exit(kvmppc_book3s_exit);
1041 /* On 32bit this is our one and only kernel module */
1042 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
1043 MODULE_ALIAS_MISCDEV(KVM_MINOR);
1044 MODULE_ALIAS("devname:kvm");