/* * Copyright (C) 2009. SUSE Linux Products GmbH. All rights reserved. * * Authors: * Alexander Graf * Kevin Wolf * * Description: * This file is derived from arch/powerpc/kvm/44x.c, * by Hollis Blanchard . * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License, version 2, as * published by the Free Software Foundation. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "book3s.h" #include "trace.h" #define VCPU_STAT(x) offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU /* #define EXIT_DEBUG */ struct kvm_stats_debugfs_item debugfs_entries[] = { { "exits", VCPU_STAT(sum_exits) }, { "mmio", VCPU_STAT(mmio_exits) }, { "sig", VCPU_STAT(signal_exits) }, { "sysc", VCPU_STAT(syscall_exits) }, { "inst_emu", VCPU_STAT(emulated_inst_exits) }, { "dec", VCPU_STAT(dec_exits) }, { "ext_intr", VCPU_STAT(ext_intr_exits) }, { "queue_intr", VCPU_STAT(queue_intr) }, { "halt_wakeup", VCPU_STAT(halt_wakeup) }, { "pf_storage", VCPU_STAT(pf_storage) }, { "sp_storage", VCPU_STAT(sp_storage) }, { "pf_instruc", VCPU_STAT(pf_instruc) }, { "sp_instruc", VCPU_STAT(sp_instruc) }, { "ld", VCPU_STAT(ld) }, { "ld_slow", VCPU_STAT(ld_slow) }, { "st", VCPU_STAT(st) }, { "st_slow", VCPU_STAT(st_slow) }, { NULL } }; void kvmppc_core_load_host_debugstate(struct kvm_vcpu *vcpu) { } void kvmppc_core_load_guest_debugstate(struct kvm_vcpu *vcpu) { } void kvmppc_unfixup_split_real(struct kvm_vcpu *vcpu) { if (vcpu->arch.hflags & BOOK3S_HFLAG_SPLIT_HACK) { ulong pc = kvmppc_get_pc(vcpu); if ((pc & SPLIT_HACK_MASK) == SPLIT_HACK_OFFS) kvmppc_set_pc(vcpu, pc & ~SPLIT_HACK_MASK); vcpu->arch.hflags &= ~BOOK3S_HFLAG_SPLIT_HACK; } } EXPORT_SYMBOL_GPL(kvmppc_unfixup_split_real); static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu) { if (!is_kvmppc_hv_enabled(vcpu->kvm)) return to_book3s(vcpu)->hior; return 0; } static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu, unsigned long pending_now, unsigned long old_pending) { if (is_kvmppc_hv_enabled(vcpu->kvm)) return; if (pending_now) kvmppc_set_int_pending(vcpu, 1); else if (old_pending) kvmppc_set_int_pending(vcpu, 0); } static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu) { ulong crit_raw; ulong crit_r1; bool crit; if (is_kvmppc_hv_enabled(vcpu->kvm)) return false; crit_raw = kvmppc_get_critical(vcpu); crit_r1 = kvmppc_get_gpr(vcpu, 1); /* Truncate crit indicators in 32 bit mode */ if (!(kvmppc_get_msr(vcpu) & MSR_SF)) { crit_raw &= 0xffffffff; crit_r1 &= 0xffffffff; } /* Critical section when crit == r1 */ crit = (crit_raw == crit_r1); /* ... and we're in supervisor mode */ crit = crit && !(kvmppc_get_msr(vcpu) & MSR_PR); return crit; } void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags) { kvmppc_unfixup_split_real(vcpu); kvmppc_set_srr0(vcpu, kvmppc_get_pc(vcpu)); kvmppc_set_srr1(vcpu, kvmppc_get_msr(vcpu) | flags); kvmppc_set_pc(vcpu, kvmppc_interrupt_offset(vcpu) + vec); vcpu->arch.mmu.reset_msr(vcpu); } static int kvmppc_book3s_vec2irqprio(unsigned int vec) { unsigned int prio; switch (vec) { case 0x100: prio = BOOK3S_IRQPRIO_SYSTEM_RESET; break; case 0x200: prio = BOOK3S_IRQPRIO_MACHINE_CHECK; break; case 0x300: prio = BOOK3S_IRQPRIO_DATA_STORAGE; break; case 0x380: prio = BOOK3S_IRQPRIO_DATA_SEGMENT; break; case 0x400: prio = BOOK3S_IRQPRIO_INST_STORAGE; break; case 0x480: prio = BOOK3S_IRQPRIO_INST_SEGMENT; break; case 0x500: prio = BOOK3S_IRQPRIO_EXTERNAL; break; case 0x501: prio = BOOK3S_IRQPRIO_EXTERNAL_LEVEL; break; case 0x600: prio = BOOK3S_IRQPRIO_ALIGNMENT; break; case 0x700: prio = BOOK3S_IRQPRIO_PROGRAM; break; case 0x800: prio = BOOK3S_IRQPRIO_FP_UNAVAIL; break; case 0x900: prio = BOOK3S_IRQPRIO_DECREMENTER; break; case 0xc00: prio = BOOK3S_IRQPRIO_SYSCALL; break; case 0xd00: prio = BOOK3S_IRQPRIO_DEBUG; break; case 0xf20: prio = BOOK3S_IRQPRIO_ALTIVEC; break; case 0xf40: prio = BOOK3S_IRQPRIO_VSX; break; case 0xf60: prio = BOOK3S_IRQPRIO_FAC_UNAVAIL; break; default: prio = BOOK3S_IRQPRIO_MAX; break; } return prio; } void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec) { unsigned long old_pending = vcpu->arch.pending_exceptions; clear_bit(kvmppc_book3s_vec2irqprio(vec), &vcpu->arch.pending_exceptions); kvmppc_update_int_pending(vcpu, vcpu->arch.pending_exceptions, old_pending); } void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec) { vcpu->stat.queue_intr++; set_bit(kvmppc_book3s_vec2irqprio(vec), &vcpu->arch.pending_exceptions); #ifdef EXIT_DEBUG printk(KERN_INFO "Queueing interrupt %x\n", vec); #endif } EXPORT_SYMBOL_GPL(kvmppc_book3s_queue_irqprio); void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags) { /* might as well deliver this straight away */ kvmppc_inject_interrupt(vcpu, BOOK3S_INTERRUPT_PROGRAM, flags); } EXPORT_SYMBOL_GPL(kvmppc_core_queue_program); void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu) { kvmppc_book3s_queue_irqprio(vcpu, BOOK3S_INTERRUPT_DECREMENTER); } EXPORT_SYMBOL_GPL(kvmppc_core_queue_dec); int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu) { return test_bit(BOOK3S_IRQPRIO_DECREMENTER, &vcpu->arch.pending_exceptions); } EXPORT_SYMBOL_GPL(kvmppc_core_pending_dec); void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu) { kvmppc_book3s_dequeue_irqprio(vcpu, BOOK3S_INTERRUPT_DECREMENTER); } EXPORT_SYMBOL_GPL(kvmppc_core_dequeue_dec); void kvmppc_core_queue_external(struct kvm_vcpu *vcpu, struct kvm_interrupt *irq) { unsigned int vec = BOOK3S_INTERRUPT_EXTERNAL; if (irq->irq == KVM_INTERRUPT_SET_LEVEL) vec = BOOK3S_INTERRUPT_EXTERNAL_LEVEL; kvmppc_book3s_queue_irqprio(vcpu, vec); } void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu) { kvmppc_book3s_dequeue_irqprio(vcpu, BOOK3S_INTERRUPT_EXTERNAL); kvmppc_book3s_dequeue_irqprio(vcpu, BOOK3S_INTERRUPT_EXTERNAL_LEVEL); } int kvmppc_book3s_irqprio_deliver(struct kvm_vcpu *vcpu, unsigned int priority) { int deliver = 1; int vec = 0; bool crit = kvmppc_critical_section(vcpu); switch (priority) { case BOOK3S_IRQPRIO_DECREMENTER: deliver = (kvmppc_get_msr(vcpu) & MSR_EE) && !crit; vec = BOOK3S_INTERRUPT_DECREMENTER; break; case BOOK3S_IRQPRIO_EXTERNAL: case BOOK3S_IRQPRIO_EXTERNAL_LEVEL: deliver = (kvmppc_get_msr(vcpu) & MSR_EE) && !crit; vec = BOOK3S_INTERRUPT_EXTERNAL; break; case BOOK3S_IRQPRIO_SYSTEM_RESET: vec = BOOK3S_INTERRUPT_SYSTEM_RESET; break; case BOOK3S_IRQPRIO_MACHINE_CHECK: vec = BOOK3S_INTERRUPT_MACHINE_CHECK; break; case BOOK3S_IRQPRIO_DATA_STORAGE: vec = BOOK3S_INTERRUPT_DATA_STORAGE; break; case BOOK3S_IRQPRIO_INST_STORAGE: vec = BOOK3S_INTERRUPT_INST_STORAGE; break; case BOOK3S_IRQPRIO_DATA_SEGMENT: vec = BOOK3S_INTERRUPT_DATA_SEGMENT; break; case BOOK3S_IRQPRIO_INST_SEGMENT: vec = BOOK3S_INTERRUPT_INST_SEGMENT; break; case BOOK3S_IRQPRIO_ALIGNMENT: vec = BOOK3S_INTERRUPT_ALIGNMENT; break; case BOOK3S_IRQPRIO_PROGRAM: vec = BOOK3S_INTERRUPT_PROGRAM; break; case BOOK3S_IRQPRIO_VSX: vec = BOOK3S_INTERRUPT_VSX; break; case BOOK3S_IRQPRIO_ALTIVEC: vec = BOOK3S_INTERRUPT_ALTIVEC; break; case BOOK3S_IRQPRIO_FP_UNAVAIL: vec = BOOK3S_INTERRUPT_FP_UNAVAIL; break; case BOOK3S_IRQPRIO_SYSCALL: vec = BOOK3S_INTERRUPT_SYSCALL; break; case BOOK3S_IRQPRIO_DEBUG: vec = BOOK3S_INTERRUPT_TRACE; break; case BOOK3S_IRQPRIO_PERFORMANCE_MONITOR: vec = BOOK3S_INTERRUPT_PERFMON; break; case BOOK3S_IRQPRIO_FAC_UNAVAIL: vec = BOOK3S_INTERRUPT_FAC_UNAVAIL; break; default: deliver = 0; printk(KERN_ERR "KVM: Unknown interrupt: 0x%x\n", priority); break; } #if 0 printk(KERN_INFO "Deliver interrupt 0x%x? %x\n", vec, deliver); #endif if (deliver) kvmppc_inject_interrupt(vcpu, vec, 0); return deliver; } /* * This function determines if an irqprio should be cleared once issued. */ static bool clear_irqprio(struct kvm_vcpu *vcpu, unsigned int priority) { switch (priority) { case BOOK3S_IRQPRIO_DECREMENTER: /* DEC interrupts get cleared by mtdec */ return false; case BOOK3S_IRQPRIO_EXTERNAL_LEVEL: /* External interrupts get cleared by userspace */ return false; } return true; } int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu) { unsigned long *pending = &vcpu->arch.pending_exceptions; unsigned long old_pending = vcpu->arch.pending_exceptions; unsigned int priority; #ifdef EXIT_DEBUG if (vcpu->arch.pending_exceptions) printk(KERN_EMERG "KVM: Check pending: %lx\n", vcpu->arch.pending_exceptions); #endif priority = __ffs(*pending); while (priority < BOOK3S_IRQPRIO_MAX) { if (kvmppc_book3s_irqprio_deliver(vcpu, priority) && clear_irqprio(vcpu, priority)) { clear_bit(priority, &vcpu->arch.pending_exceptions); break; } priority = find_next_bit(pending, BITS_PER_BYTE * sizeof(*pending), priority + 1); } /* Tell the guest about our interrupt status */ kvmppc_update_int_pending(vcpu, *pending, old_pending); return 0; } EXPORT_SYMBOL_GPL(kvmppc_core_prepare_to_enter); pfn_t kvmppc_gpa_to_pfn(struct kvm_vcpu *vcpu, gpa_t gpa, bool writing, bool *writable) { ulong mp_pa = vcpu->arch.magic_page_pa & KVM_PAM; gfn_t gfn = gpa >> PAGE_SHIFT; if (!(kvmppc_get_msr(vcpu) & MSR_SF)) mp_pa = (uint32_t)mp_pa; /* Magic page override */ gpa &= ~0xFFFULL; if (unlikely(mp_pa) && unlikely((gpa & KVM_PAM) == mp_pa)) { ulong shared_page = ((ulong)vcpu->arch.shared) & PAGE_MASK; pfn_t pfn; pfn = (pfn_t)virt_to_phys((void*)shared_page) >> PAGE_SHIFT; get_page(pfn_to_page(pfn)); if (writable) *writable = true; return pfn; } return gfn_to_pfn_prot(vcpu->kvm, gfn, writing, writable); } EXPORT_SYMBOL_GPL(kvmppc_gpa_to_pfn); static int kvmppc_xlate(struct kvm_vcpu *vcpu, ulong eaddr, bool data, bool iswrite, struct kvmppc_pte *pte) { int relocated = (kvmppc_get_msr(vcpu) & (data ? MSR_DR : MSR_IR)); int r; if (relocated) { r = vcpu->arch.mmu.xlate(vcpu, eaddr, pte, data, iswrite); } else { pte->eaddr = eaddr; pte->raddr = eaddr & KVM_PAM; pte->vpage = VSID_REAL | eaddr >> 12; pte->may_read = true; pte->may_write = true; pte->may_execute = true; r = 0; if ((kvmppc_get_msr(vcpu) & (MSR_IR | MSR_DR)) == MSR_DR && !data) { if ((vcpu->arch.hflags & BOOK3S_HFLAG_SPLIT_HACK) && ((eaddr & SPLIT_HACK_MASK) == SPLIT_HACK_OFFS)) pte->raddr &= ~SPLIT_HACK_MASK; } } return r; } static hva_t kvmppc_bad_hva(void) { return PAGE_OFFSET; } static hva_t kvmppc_pte_to_hva(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte) { hva_t hpage; hpage = gfn_to_hva(vcpu->kvm, pte->raddr >> PAGE_SHIFT); if (kvm_is_error_hva(hpage)) goto err; return hpage | (pte->raddr & ~PAGE_MASK); err: return kvmppc_bad_hva(); } int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data) { struct kvmppc_pte pte; int r; vcpu->stat.st++; r = kvmppc_xlate(vcpu, *eaddr, data, true, &pte); if (r < 0) return r; *eaddr = pte.raddr; if (!pte.may_write) return -EPERM; if (kvm_write_guest(vcpu->kvm, pte.raddr, ptr, size)) return EMULATE_DO_MMIO; return EMULATE_DONE; } EXPORT_SYMBOL_GPL(kvmppc_st); int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data) { struct kvmppc_pte pte; hva_t hva = *eaddr; int rc; vcpu->stat.ld++; rc = kvmppc_xlate(vcpu, *eaddr, data, false, &pte); if (rc) return rc; *eaddr = pte.raddr; if (!pte.may_read) return -EPERM; if (!data && !pte.may_execute) return -ENOEXEC; hva = kvmppc_pte_to_hva(vcpu, &pte); if (kvm_is_error_hva(hva)) goto mmio; if (copy_from_user(ptr, (void __user *)hva, size)) { printk(KERN_INFO "kvmppc_ld at 0x%lx failed\n", hva); goto mmio; } return EMULATE_DONE; mmio: return EMULATE_DO_MMIO; } EXPORT_SYMBOL_GPL(kvmppc_ld); int kvmppc_load_last_inst(struct kvm_vcpu *vcpu, enum instruction_type type, u32 *inst) { ulong pc = kvmppc_get_pc(vcpu); int r; if (type == INST_SC) pc -= 4; r = kvmppc_ld(vcpu, &pc, sizeof(u32), inst, false); if (r == EMULATE_DONE) return r; else return EMULATE_AGAIN; } EXPORT_SYMBOL_GPL(kvmppc_load_last_inst); int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu) { return 0; } int kvmppc_subarch_vcpu_init(struct kvm_vcpu *vcpu) { return 0; } void kvmppc_subarch_vcpu_uninit(struct kvm_vcpu *vcpu) { } int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs) { return vcpu->kvm->arch.kvm_ops->get_sregs(vcpu, sregs); } int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs) { return vcpu->kvm->arch.kvm_ops->set_sregs(vcpu, sregs); } int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) { int i; regs->pc = kvmppc_get_pc(vcpu); regs->cr = kvmppc_get_cr(vcpu); regs->ctr = kvmppc_get_ctr(vcpu); regs->lr = kvmppc_get_lr(vcpu); regs->xer = kvmppc_get_xer(vcpu); regs->msr = kvmppc_get_msr(vcpu); regs->srr0 = kvmppc_get_srr0(vcpu); regs->srr1 = kvmppc_get_srr1(vcpu); regs->pid = vcpu->arch.pid; regs->sprg0 = kvmppc_get_sprg0(vcpu); regs->sprg1 = kvmppc_get_sprg1(vcpu); regs->sprg2 = kvmppc_get_sprg2(vcpu); regs->sprg3 = kvmppc_get_sprg3(vcpu); regs->sprg4 = kvmppc_get_sprg4(vcpu); regs->sprg5 = kvmppc_get_sprg5(vcpu); regs->sprg6 = kvmppc_get_sprg6(vcpu); regs->sprg7 = kvmppc_get_sprg7(vcpu); for (i = 0; i < ARRAY_SIZE(regs->gpr); i++) regs->gpr[i] = kvmppc_get_gpr(vcpu, i); return 0; } int kvm_arch_vcpu_ioctl_set_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs) { int i; kvmppc_set_pc(vcpu, regs->pc); kvmppc_set_cr(vcpu, regs->cr); kvmppc_set_ctr(vcpu, regs->ctr); kvmppc_set_lr(vcpu, regs->lr); kvmppc_set_xer(vcpu, regs->xer); kvmppc_set_msr(vcpu, regs->msr); kvmppc_set_srr0(vcpu, regs->srr0); kvmppc_set_srr1(vcpu, regs->srr1); kvmppc_set_sprg0(vcpu, regs->sprg0); kvmppc_set_sprg1(vcpu, regs->sprg1); kvmppc_set_sprg2(vcpu, regs->sprg2); kvmppc_set_sprg3(vcpu, regs->sprg3); kvmppc_set_sprg4(vcpu, regs->sprg4); kvmppc_set_sprg5(vcpu, regs->sprg5); kvmppc_set_sprg6(vcpu, regs->sprg6); kvmppc_set_sprg7(vcpu, regs->sprg7); for (i = 0; i < ARRAY_SIZE(regs->gpr); i++) kvmppc_set_gpr(vcpu, i, regs->gpr[i]); return 0; } int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu) { return -ENOTSUPP; } int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu) { return -ENOTSUPP; } int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg) { int r; union kvmppc_one_reg val; int size; long int i; size = one_reg_size(reg->id); if (size > sizeof(val)) return -EINVAL; r = vcpu->kvm->arch.kvm_ops->get_one_reg(vcpu, reg->id, &val); if (r == -EINVAL) { r = 0; switch (reg->id) { case KVM_REG_PPC_DAR: val = get_reg_val(reg->id, kvmppc_get_dar(vcpu)); break; case KVM_REG_PPC_DSISR: val = get_reg_val(reg->id, kvmppc_get_dsisr(vcpu)); break; case KVM_REG_PPC_FPR0 ... KVM_REG_PPC_FPR31: i = reg->id - KVM_REG_PPC_FPR0; val = get_reg_val(reg->id, VCPU_FPR(vcpu, i)); break; case KVM_REG_PPC_FPSCR: val = get_reg_val(reg->id, vcpu->arch.fp.fpscr); break; #ifdef CONFIG_ALTIVEC case KVM_REG_PPC_VR0 ... KVM_REG_PPC_VR31: if (!cpu_has_feature(CPU_FTR_ALTIVEC)) { r = -ENXIO; break; } val.vval = vcpu->arch.vr.vr[reg->id - KVM_REG_PPC_VR0]; break; case KVM_REG_PPC_VSCR: if (!cpu_has_feature(CPU_FTR_ALTIVEC)) { r = -ENXIO; break; } val = get_reg_val(reg->id, vcpu->arch.vr.vscr.u[3]); break; case KVM_REG_PPC_VRSAVE: val = get_reg_val(reg->id, vcpu->arch.vrsave); break; #endif /* CONFIG_ALTIVEC */ #ifdef CONFIG_VSX case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31: if (cpu_has_feature(CPU_FTR_VSX)) { long int i = reg->id - KVM_REG_PPC_VSR0; val.vsxval[0] = vcpu->arch.fp.fpr[i][0]; val.vsxval[1] = vcpu->arch.fp.fpr[i][1]; } else { r = -ENXIO; } break; #endif /* CONFIG_VSX */ case KVM_REG_PPC_DEBUG_INST: { u32 opcode = INS_TW; r = copy_to_user((u32 __user *)(long)reg->addr, &opcode, sizeof(u32)); break; } #ifdef CONFIG_KVM_XICS case KVM_REG_PPC_ICP_STATE: if (!vcpu->arch.icp) { r = -ENXIO; break; } val = get_reg_val(reg->id, kvmppc_xics_get_icp(vcpu)); break; #endif /* CONFIG_KVM_XICS */ case KVM_REG_PPC_FSCR: val = get_reg_val(reg->id, vcpu->arch.fscr); break; case KVM_REG_PPC_TAR: val = get_reg_val(reg->id, vcpu->arch.tar); break; case KVM_REG_PPC_EBBHR: val = get_reg_val(reg->id, vcpu->arch.ebbhr); break; case KVM_REG_PPC_EBBRR: val = get_reg_val(reg->id, vcpu->arch.ebbrr); break; case KVM_REG_PPC_BESCR: val = get_reg_val(reg->id, vcpu->arch.bescr); break; case KVM_REG_PPC_VTB: val = get_reg_val(reg->id, vcpu->arch.vtb); break; case KVM_REG_PPC_IC: val = get_reg_val(reg->id, vcpu->arch.ic); break; default: r = -EINVAL; break; } } if (r) return r; if (copy_to_user((char __user *)(unsigned long)reg->addr, &val, size)) r = -EFAULT; return r; } int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg) { int r; union kvmppc_one_reg val; int size; long int i; size = one_reg_size(reg->id); if (size > sizeof(val)) return -EINVAL; if (copy_from_user(&val, (char __user *)(unsigned long)reg->addr, size)) return -EFAULT; r = vcpu->kvm->arch.kvm_ops->set_one_reg(vcpu, reg->id, &val); if (r == -EINVAL) { r = 0; switch (reg->id) { case KVM_REG_PPC_DAR: kvmppc_set_dar(vcpu, set_reg_val(reg->id, val)); break; case KVM_REG_PPC_DSISR: kvmppc_set_dsisr(vcpu, set_reg_val(reg->id, val)); break; case KVM_REG_PPC_FPR0 ... KVM_REG_PPC_FPR31: i = reg->id - KVM_REG_PPC_FPR0; VCPU_FPR(vcpu, i) = set_reg_val(reg->id, val); break; case KVM_REG_PPC_FPSCR: vcpu->arch.fp.fpscr = set_reg_val(reg->id, val); break; #ifdef CONFIG_ALTIVEC case KVM_REG_PPC_VR0 ... KVM_REG_PPC_VR31: if (!cpu_has_feature(CPU_FTR_ALTIVEC)) { r = -ENXIO; break; } vcpu->arch.vr.vr[reg->id - KVM_REG_PPC_VR0] = val.vval; break; case KVM_REG_PPC_VSCR: if (!cpu_has_feature(CPU_FTR_ALTIVEC)) { r = -ENXIO; break; } vcpu->arch.vr.vscr.u[3] = set_reg_val(reg->id, val); break; case KVM_REG_PPC_VRSAVE: if (!cpu_has_feature(CPU_FTR_ALTIVEC)) { r = -ENXIO; break; } vcpu->arch.vrsave = set_reg_val(reg->id, val); break; #endif /* CONFIG_ALTIVEC */ #ifdef CONFIG_VSX case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31: if (cpu_has_feature(CPU_FTR_VSX)) { long int i = reg->id - KVM_REG_PPC_VSR0; vcpu->arch.fp.fpr[i][0] = val.vsxval[0]; vcpu->arch.fp.fpr[i][1] = val.vsxval[1]; } else { r = -ENXIO; } break; #endif /* CONFIG_VSX */ #ifdef CONFIG_KVM_XICS case KVM_REG_PPC_ICP_STATE: if (!vcpu->arch.icp) { r = -ENXIO; break; } r = kvmppc_xics_set_icp(vcpu, set_reg_val(reg->id, val)); break; #endif /* CONFIG_KVM_XICS */ case KVM_REG_PPC_FSCR: vcpu->arch.fscr = set_reg_val(reg->id, val); break; case KVM_REG_PPC_TAR: vcpu->arch.tar = set_reg_val(reg->id, val); break; case KVM_REG_PPC_EBBHR: vcpu->arch.ebbhr = set_reg_val(reg->id, val); break; case KVM_REG_PPC_EBBRR: vcpu->arch.ebbrr = set_reg_val(reg->id, val); break; case KVM_REG_PPC_BESCR: vcpu->arch.bescr = set_reg_val(reg->id, val); break; case KVM_REG_PPC_VTB: vcpu->arch.vtb = set_reg_val(reg->id, val); break; case KVM_REG_PPC_IC: vcpu->arch.ic = set_reg_val(reg->id, val); break; default: r = -EINVAL; break; } } return r; } void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu) { vcpu->kvm->arch.kvm_ops->vcpu_load(vcpu, cpu); } void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu) { vcpu->kvm->arch.kvm_ops->vcpu_put(vcpu); } void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 msr) { vcpu->kvm->arch.kvm_ops->set_msr(vcpu, msr); } EXPORT_SYMBOL_GPL(kvmppc_set_msr); int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu) { return vcpu->kvm->arch.kvm_ops->vcpu_run(kvm_run, vcpu); } int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu, struct kvm_translation *tr) { return 0; } int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu, struct kvm_guest_debug *dbg) { return -EINVAL; } void kvmppc_decrementer_func(unsigned long data) { struct kvm_vcpu *vcpu = (struct kvm_vcpu *)data; kvmppc_core_queue_dec(vcpu); kvm_vcpu_kick(vcpu); } struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id) { return kvm->arch.kvm_ops->vcpu_create(kvm, id); } void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu) { vcpu->kvm->arch.kvm_ops->vcpu_free(vcpu); } int kvmppc_core_check_requests(struct kvm_vcpu *vcpu) { return vcpu->kvm->arch.kvm_ops->check_requests(vcpu); } int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log *log) { return kvm->arch.kvm_ops->get_dirty_log(kvm, log); } void kvmppc_core_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free, struct kvm_memory_slot *dont) { kvm->arch.kvm_ops->free_memslot(free, dont); } int kvmppc_core_create_memslot(struct kvm *kvm, struct kvm_memory_slot *slot, unsigned long npages) { return kvm->arch.kvm_ops->create_memslot(slot, npages); } void kvmppc_core_flush_memslot(struct kvm *kvm, struct kvm_memory_slot *memslot) { kvm->arch.kvm_ops->flush_memslot(kvm, memslot); } int kvmppc_core_prepare_memory_region(struct kvm *kvm, struct kvm_memory_slot *memslot, struct kvm_userspace_memory_region *mem) { return kvm->arch.kvm_ops->prepare_memory_region(kvm, memslot, mem); } void kvmppc_core_commit_memory_region(struct kvm *kvm, struct kvm_userspace_memory_region *mem, const struct kvm_memory_slot *old) { kvm->arch.kvm_ops->commit_memory_region(kvm, mem, old); } int kvm_unmap_hva(struct kvm *kvm, unsigned long hva) { return kvm->arch.kvm_ops->unmap_hva(kvm, hva); } EXPORT_SYMBOL_GPL(kvm_unmap_hva); int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end) { return kvm->arch.kvm_ops->unmap_hva_range(kvm, start, end); } int kvm_age_hva(struct kvm *kvm, unsigned long hva) { return kvm->arch.kvm_ops->age_hva(kvm, hva); } int kvm_test_age_hva(struct kvm *kvm, unsigned long hva) { return kvm->arch.kvm_ops->test_age_hva(kvm, hva); } void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte) { kvm->arch.kvm_ops->set_spte_hva(kvm, hva, pte); } void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu) { vcpu->kvm->arch.kvm_ops->mmu_destroy(vcpu); } int kvmppc_core_init_vm(struct kvm *kvm) { #ifdef CONFIG_PPC64 INIT_LIST_HEAD(&kvm->arch.spapr_tce_tables); INIT_LIST_HEAD(&kvm->arch.rtas_tokens); #endif return kvm->arch.kvm_ops->init_vm(kvm); } void kvmppc_core_destroy_vm(struct kvm *kvm) { kvm->arch.kvm_ops->destroy_vm(kvm); #ifdef CONFIG_PPC64 kvmppc_rtas_tokens_free(kvm); WARN_ON(!list_empty(&kvm->arch.spapr_tce_tables)); #endif } int kvmppc_core_check_processor_compat(void) { /* * We always return 0 for book3s. We check * for compatability while loading the HV * or PR module */ return 0; } int kvmppc_book3s_hcall_implemented(struct kvm *kvm, unsigned long hcall) { return kvm->arch.kvm_ops->hcall_implemented(hcall); } static int kvmppc_book3s_init(void) { int r; r = kvm_init(NULL, sizeof(struct kvm_vcpu), 0, THIS_MODULE); if (r) return r; #ifdef CONFIG_KVM_BOOK3S_32_HANDLER r = kvmppc_book3s_init_pr(); #endif return r; } static void kvmppc_book3s_exit(void) { #ifdef CONFIG_KVM_BOOK3S_32_HANDLER kvmppc_book3s_exit_pr(); #endif kvm_exit(); } module_init(kvmppc_book3s_init); module_exit(kvmppc_book3s_exit); /* On 32bit this is our one and only kernel module */ #ifdef CONFIG_KVM_BOOK3S_32_HANDLER MODULE_ALIAS_MISCDEV(KVM_MINOR); MODULE_ALIAS("devname:kvm"); #endif