Initial import

1 files changed, 944 insertions, 0 deletions

diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
new file mode 100644
index 000000000..453a8a47a
--- /dev/null
+++ b/arch/powerpc/kvm/book3s.c
@@ -0,0 +1,944 @@
+/*
+ * Copyright (C) 2009. SUSE Linux Products GmbH. All rights reserved.
+ *
+ * Authors:
+ *    Alexander Graf <agraf@suse.de>
+ *    Kevin Wolf <mail@kevin-wolf.de>
+ *
+ * Description:
+ * This file is derived from arch/powerpc/kvm/44x.c,
+ * by Hollis Blanchard <hollisb@us.ibm.com>.
+ *
+ * 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 <linux/kvm_host.h>
+#include <linux/err.h>
+#include <linux/export.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/miscdevice.h>
+
+#include <asm/reg.h>
+#include <asm/cputable.h>
+#include <asm/cacheflush.h>
+#include <asm/tlbflush.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <asm/kvm_ppc.h>
+#include <asm/kvm_book3s.h>
+#include <asm/mmu_context.h>
+#include <asm/page.h>
+#include <linux/gfp.h>
+#include <linux/sched.h>
+#include <linux/vmalloc.h>
+#include <linux/highmem.h>
+
+#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_successful_poll", VCPU_STAT(halt_successful_poll), },
+	{ "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_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);
+}
+
+void kvmppc_core_queue_data_storage(struct kvm_vcpu *vcpu, ulong dar,
+				    ulong flags)
+{
+	kvmppc_set_dar(vcpu, dar);
+	kvmppc_set_dsisr(vcpu, flags);
+	kvmppc_book3s_queue_irqprio(vcpu, BOOK3S_INTERRUPT_DATA_STORAGE);
+}
+
+void kvmppc_core_queue_inst_storage(struct kvm_vcpu *vcpu, ulong flags)
+{
+	u64 msr = kvmppc_get_msr(vcpu);
+	msr &= ~(SRR1_ISI_NOPT | SRR1_ISI_N_OR_G | SRR1_ISI_PROT);
+	msr |= flags & (SRR1_ISI_NOPT | SRR1_ISI_N_OR_G | SRR1_ISI_PROT);
+	kvmppc_set_msr_fast(vcpu, msr);
+	kvmppc_book3s_queue_irqprio(vcpu, BOOK3S_INTERRUPT_INST_STORAGE);
+}
+
+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);
+
+int kvmppc_xlate(struct kvm_vcpu *vcpu, ulong eaddr, enum xlate_instdata xlid,
+		 enum xlate_readwrite xlrw, struct kvmppc_pte *pte)
+{
+	bool data = (xlid == XLATE_DATA);
+	bool iswrite = (xlrw == XLATE_WRITE);
+	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;
+}
+
+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 kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id,
+			union kvmppc_one_reg *val)
+{
+	int r = 0;
+	long int i;
+
+	r = vcpu->kvm->arch.kvm_ops->get_one_reg(vcpu, id, val);
+	if (r == -EINVAL) {
+		r = 0;
+		switch (id) {
+		case KVM_REG_PPC_DAR:
+			*val = get_reg_val(id, kvmppc_get_dar(vcpu));
+			break;
+		case KVM_REG_PPC_DSISR:
+			*val = get_reg_val(id, kvmppc_get_dsisr(vcpu));
+			break;
+		case KVM_REG_PPC_FPR0 ... KVM_REG_PPC_FPR31:
+			i = id - KVM_REG_PPC_FPR0;
+			*val = get_reg_val(id, VCPU_FPR(vcpu, i));
+			break;
+		case KVM_REG_PPC_FPSCR:
+			*val = get_reg_val(id, vcpu->arch.fp.fpscr);
+			break;
+#ifdef CONFIG_VSX
+		case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31:
+			if (cpu_has_feature(CPU_FTR_VSX)) {
+				i = 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:
+			*val = get_reg_val(id, INS_TW);
+			break;
+#ifdef CONFIG_KVM_XICS
+		case KVM_REG_PPC_ICP_STATE:
+			if (!vcpu->arch.icp) {
+				r = -ENXIO;
+				break;
+			}
+			*val = get_reg_val(id, kvmppc_xics_get_icp(vcpu));
+			break;
+#endif /* CONFIG_KVM_XICS */
+		case KVM_REG_PPC_FSCR:
+			*val = get_reg_val(id, vcpu->arch.fscr);
+			break;
+		case KVM_REG_PPC_TAR:
+			*val = get_reg_val(id, vcpu->arch.tar);
+			break;
+		case KVM_REG_PPC_EBBHR:
+			*val = get_reg_val(id, vcpu->arch.ebbhr);
+			break;
+		case KVM_REG_PPC_EBBRR:
+			*val = get_reg_val(id, vcpu->arch.ebbrr);
+			break;
+		case KVM_REG_PPC_BESCR:
+			*val = get_reg_val(id, vcpu->arch.bescr);
+			break;
+		case KVM_REG_PPC_VTB:
+			*val = get_reg_val(id, vcpu->arch.vtb);
+			break;
+		case KVM_REG_PPC_IC:
+			*val = get_reg_val(id, vcpu->arch.ic);
+			break;
+		default:
+			r = -EINVAL;
+			break;
+		}
+	}
+
+	return r;
+}
+
+int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id,
+			union kvmppc_one_reg *val)
+{
+	int r = 0;
+	long int i;
+
+	r = vcpu->kvm->arch.kvm_ops->set_one_reg(vcpu, id, val);
+	if (r == -EINVAL) {
+		r = 0;
+		switch (id) {
+		case KVM_REG_PPC_DAR:
+			kvmppc_set_dar(vcpu, set_reg_val(id, *val));
+			break;
+		case KVM_REG_PPC_DSISR:
+			kvmppc_set_dsisr(vcpu, set_reg_val(id, *val));
+			break;
+		case KVM_REG_PPC_FPR0 ... KVM_REG_PPC_FPR31:
+			i = id - KVM_REG_PPC_FPR0;
+			VCPU_FPR(vcpu, i) = set_reg_val(id, *val);
+			break;
+		case KVM_REG_PPC_FPSCR:
+			vcpu->arch.fp.fpscr = set_reg_val(id, *val);
+			break;
+#ifdef CONFIG_VSX
+		case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31:
+			if (cpu_has_feature(CPU_FTR_VSX)) {
+				i = 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(id, *val));
+			break;
+#endif /* CONFIG_KVM_XICS */
+		case KVM_REG_PPC_FSCR:
+			vcpu->arch.fscr = set_reg_val(id, *val);
+			break;
+		case KVM_REG_PPC_TAR:
+			vcpu->arch.tar = set_reg_val(id, *val);
+			break;
+		case KVM_REG_PPC_EBBHR:
+			vcpu->arch.ebbhr = set_reg_val(id, *val);
+			break;
+		case KVM_REG_PPC_EBBRR:
+			vcpu->arch.ebbrr = set_reg_val(id, *val);
+			break;
+		case KVM_REG_PPC_BESCR:
+			vcpu->arch.bescr = set_reg_val(id, *val);
+			break;
+		case KVM_REG_PPC_VTB:
+			vcpu->arch.vtb = set_reg_val(id, *val);
+			break;
+		case KVM_REG_PPC_IC:
+			vcpu->arch.ic = set_reg_val(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)
+{
+	vcpu->guest_debug = dbg->control;
+	return 0;
+}
+
+void kvmppc_decrementer_func(struct kvm_vcpu *vcpu)
+{
+	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 start, unsigned long end)
+{
+	return kvm->arch.kvm_ops->age_hva(kvm, start, end);
+}
+
+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_h_logical_ci_load(struct kvm_vcpu *vcpu)
+{
+	unsigned long size = kvmppc_get_gpr(vcpu, 4);
+	unsigned long addr = kvmppc_get_gpr(vcpu, 5);
+	u64 buf;
+	int ret;
+
+	if (!is_power_of_2(size) || (size > sizeof(buf)))
+		return H_TOO_HARD;
+
+	ret = kvm_io_bus_read(vcpu, KVM_MMIO_BUS, addr, size, &buf);
+	if (ret != 0)
+		return H_TOO_HARD;
+
+	switch (size) {
+	case 1:
+		kvmppc_set_gpr(vcpu, 4, *(u8 *)&buf);
+		break;
+
+	case 2:
+		kvmppc_set_gpr(vcpu, 4, be16_to_cpu(*(__be16 *)&buf));
+		break;
+
+	case 4:
+		kvmppc_set_gpr(vcpu, 4, be32_to_cpu(*(__be32 *)&buf));
+		break;
+
+	case 8:
+		kvmppc_set_gpr(vcpu, 4, be64_to_cpu(*(__be64 *)&buf));
+		break;
+
+	default:
+		BUG();
+	}
+
+	return H_SUCCESS;
+}
+EXPORT_SYMBOL_GPL(kvmppc_h_logical_ci_load);
+
+int kvmppc_h_logical_ci_store(struct kvm_vcpu *vcpu)
+{
+	unsigned long size = kvmppc_get_gpr(vcpu, 4);
+	unsigned long addr = kvmppc_get_gpr(vcpu, 5);
+	unsigned long val = kvmppc_get_gpr(vcpu, 6);
+	u64 buf;
+	int ret;
+
+	switch (size) {
+	case 1:
+		*(u8 *)&buf = val;
+		break;
+
+	case 2:
+		*(__be16 *)&buf = cpu_to_be16(val);
+		break;
+
+	case 4:
+		*(__be32 *)&buf = cpu_to_be32(val);
+		break;
+
+	case 8:
+		*(__be64 *)&buf = cpu_to_be64(val);
+		break;
+
+	default:
+		return H_TOO_HARD;
+	}
+
+	ret = kvm_io_bus_write(vcpu, KVM_MMIO_BUS, addr, size, &buf);
+	if (ret != 0)
+		return H_TOO_HARD;
+
+	return H_SUCCESS;
+}
+EXPORT_SYMBOL_GPL(kvmppc_h_logical_ci_store);
+
+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