[deliverable/linux.git] / arch / powerpc / kvm / e500mc.c

/*
 * Copyright (C) 2010,2012 Freescale Semiconductor, Inc. All rights reserved.
 *
 * Author: Varun Sethi, <varun.sethi@freescale.com>
 *
 * Description:
 * This file is derived from arch/powerpc/kvm/e500.c,
 * by Yu Liu <yu.liu@freescale.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/slab.h>
#include <linux/err.h>
#include <linux/export.h>

#include <asm/reg.h>
#include <asm/cputable.h>
#include <asm/tlbflush.h>
#include <asm/kvm_ppc.h>
#include <asm/dbell.h>

#include "booke.h"
#include "e500.h"

void kvmppc_set_pending_interrupt(struct kvm_vcpu *vcpu, enum int_class type)
{
	enum ppc_dbell dbell_type;
	unsigned long tag;

	switch (type) {
	case INT_CLASS_NONCRIT:
		dbell_type = PPC_G_DBELL;
		break;
	case INT_CLASS_CRIT:
		dbell_type = PPC_G_DBELL_CRIT;
		break;
	case INT_CLASS_MC:
		dbell_type = PPC_G_DBELL_MC;
		break;
	default:
		WARN_ONCE(1, "%s: unknown int type %d\n", __func__, type);
		return;
	}


	tag = PPC_DBELL_LPID(vcpu->kvm->arch.lpid) | vcpu->vcpu_id;
	mb();
	ppc_msgsnd(dbell_type, 0, tag);
}

/* gtlbe must not be mapped by more than one host tlb entry */
void kvmppc_e500_tlbil_one(struct kvmppc_vcpu_e500 *vcpu_e500,
			   struct kvm_book3e_206_tlb_entry *gtlbe)
{
	unsigned int tid, ts;
	gva_t eaddr;
	u32 val, lpid;
	unsigned long flags;

	ts = get_tlb_ts(gtlbe);
	tid = get_tlb_tid(gtlbe);
	lpid = vcpu_e500->vcpu.kvm->arch.lpid;

	/* We search the host TLB to invalidate its shadow TLB entry */
	val = (tid << 16) | ts;
	eaddr = get_tlb_eaddr(gtlbe);

	local_irq_save(flags);

	mtspr(SPRN_MAS6, val);
	mtspr(SPRN_MAS5, MAS5_SGS | lpid);

	asm volatile("tlbsx 0, %[eaddr]\n" : : [eaddr] "r" (eaddr));
	val = mfspr(SPRN_MAS1);
	if (val & MAS1_VALID) {
		mtspr(SPRN_MAS1, val & ~MAS1_VALID);
		asm volatile("tlbwe");
	}
	mtspr(SPRN_MAS5, 0);
	/* NOTE: tlbsx also updates mas8, so clear it for host tlbwe */
	mtspr(SPRN_MAS8, 0);
	isync();

	local_irq_restore(flags);
}

void kvmppc_e500_tlbil_all(struct kvmppc_vcpu_e500 *vcpu_e500)
{
	unsigned long flags;

	local_irq_save(flags);
	mtspr(SPRN_MAS5, MAS5_SGS | vcpu_e500->vcpu.kvm->arch.lpid);
	asm volatile("tlbilxlpid");
	mtspr(SPRN_MAS5, 0);
	local_irq_restore(flags);
}

void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid)
{
	vcpu->arch.pid = pid;
}

void kvmppc_mmu_msr_notify(struct kvm_vcpu *vcpu, u32 old_msr)
{
}

void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
{
	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);

	kvmppc_booke_vcpu_load(vcpu, cpu);

	mtspr(SPRN_LPID, vcpu->kvm->arch.lpid);
	mtspr(SPRN_EPCR, vcpu->arch.shadow_epcr);
	mtspr(SPRN_GPIR, vcpu->vcpu_id);
	mtspr(SPRN_MSRP, vcpu->arch.shadow_msrp);
	mtspr(SPRN_EPLC, vcpu->arch.eplc);
	mtspr(SPRN_EPSC, vcpu->arch.epsc);

	mtspr(SPRN_GIVPR, vcpu->arch.ivpr);
	mtspr(SPRN_GIVOR2, vcpu->arch.ivor[BOOKE_IRQPRIO_DATA_STORAGE]);
	mtspr(SPRN_GIVOR8, vcpu->arch.ivor[BOOKE_IRQPRIO_SYSCALL]);
	mtspr(SPRN_GSPRG0, (unsigned long)vcpu->arch.shared->sprg0);
	mtspr(SPRN_GSPRG1, (unsigned long)vcpu->arch.shared->sprg1);
	mtspr(SPRN_GSPRG2, (unsigned long)vcpu->arch.shared->sprg2);
	mtspr(SPRN_GSPRG3, (unsigned long)vcpu->arch.shared->sprg3);

	mtspr(SPRN_GSRR0, vcpu->arch.shared->srr0);
	mtspr(SPRN_GSRR1, vcpu->arch.shared->srr1);

	mtspr(SPRN_GEPR, vcpu->arch.epr);
	mtspr(SPRN_GDEAR, vcpu->arch.shared->dar);
	mtspr(SPRN_GESR, vcpu->arch.shared->esr);

	if (vcpu->arch.oldpir != mfspr(SPRN_PIR))
		kvmppc_e500_tlbil_all(vcpu_e500);

	kvmppc_load_guest_fp(vcpu);
}

void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu)
{
	vcpu->arch.eplc = mfspr(SPRN_EPLC);
	vcpu->arch.epsc = mfspr(SPRN_EPSC);

	vcpu->arch.shared->sprg0 = mfspr(SPRN_GSPRG0);
	vcpu->arch.shared->sprg1 = mfspr(SPRN_GSPRG1);
	vcpu->arch.shared->sprg2 = mfspr(SPRN_GSPRG2);
	vcpu->arch.shared->sprg3 = mfspr(SPRN_GSPRG3);

	vcpu->arch.shared->srr0 = mfspr(SPRN_GSRR0);
	vcpu->arch.shared->srr1 = mfspr(SPRN_GSRR1);

	vcpu->arch.epr = mfspr(SPRN_GEPR);
	vcpu->arch.shared->dar = mfspr(SPRN_GDEAR);
	vcpu->arch.shared->esr = mfspr(SPRN_GESR);

	vcpu->arch.oldpir = mfspr(SPRN_PIR);

	kvmppc_booke_vcpu_put(vcpu);
}

int kvmppc_core_check_processor_compat(void)
{
	int r;

	if (strcmp(cur_cpu_spec->cpu_name, "e500mc") == 0)
		r = 0;
	else if (strcmp(cur_cpu_spec->cpu_name, "e5500") == 0)
		r = 0;
	else
		r = -ENOTSUPP;

	return r;
}

int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu)
{
	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);

	vcpu->arch.shadow_epcr = SPRN_EPCR_DSIGS | SPRN_EPCR_DGTMI | \
				 SPRN_EPCR_DUVD;
#ifdef CONFIG_64BIT
	vcpu->arch.shadow_epcr |= SPRN_EPCR_ICM;
#endif
	vcpu->arch.shadow_msrp = MSRP_UCLEP | MSRP_DEP | MSRP_PMMP;
	vcpu->arch.eplc = EPC_EGS | (vcpu->kvm->arch.lpid << EPC_ELPID_SHIFT);
	vcpu->arch.epsc = vcpu->arch.eplc;

	vcpu->arch.pvr = mfspr(SPRN_PVR);
	vcpu_e500->svr = mfspr(SPRN_SVR);

	vcpu->arch.cpu_type = KVM_CPU_E500MC;

	return 0;
}

void kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
{
	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);

	sregs->u.e.features |= KVM_SREGS_E_ARCH206_MMU | KVM_SREGS_E_PM |
			       KVM_SREGS_E_PC;
	sregs->u.e.impl_id = KVM_SREGS_E_IMPL_FSL;

	sregs->u.e.impl.fsl.features = 0;
	sregs->u.e.impl.fsl.svr = vcpu_e500->svr;
	sregs->u.e.impl.fsl.hid0 = vcpu_e500->hid0;
	sregs->u.e.impl.fsl.mcar = vcpu_e500->mcar;

	kvmppc_get_sregs_e500_tlb(vcpu, sregs);

	sregs->u.e.ivor_high[3] =
		vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR];
	sregs->u.e.ivor_high[4] = vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL];
	sregs->u.e.ivor_high[5] = vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL_CRIT];

	kvmppc_get_sregs_ivor(vcpu, sregs);
}

int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
{
	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
	int ret;

	if (sregs->u.e.impl_id == KVM_SREGS_E_IMPL_FSL) {
		vcpu_e500->svr = sregs->u.e.impl.fsl.svr;
		vcpu_e500->hid0 = sregs->u.e.impl.fsl.hid0;
		vcpu_e500->mcar = sregs->u.e.impl.fsl.mcar;
	}

	ret = kvmppc_set_sregs_e500_tlb(vcpu, sregs);
	if (ret < 0)
		return ret;

	if (!(sregs->u.e.features & KVM_SREGS_E_IVOR))
		return 0;

	if (sregs->u.e.features & KVM_SREGS_E_PM) {
		vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR] =
			sregs->u.e.ivor_high[3];
	}

	if (sregs->u.e.features & KVM_SREGS_E_PC) {
		vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL] =
			sregs->u.e.ivor_high[4];
		vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL_CRIT] =
			sregs->u.e.ivor_high[5];
	}

	return kvmppc_set_sregs_ivor(vcpu, sregs);
}

struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
{
	struct kvmppc_vcpu_e500 *vcpu_e500;
	struct kvm_vcpu *vcpu;
	int err;

	vcpu_e500 = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL);
	if (!vcpu_e500) {
		err = -ENOMEM;
		goto out;
	}
	vcpu = &vcpu_e500->vcpu;

	/* Invalid PIR value -- this LPID dosn't have valid state on any cpu */
	vcpu->arch.oldpir = 0xffffffff;

	err = kvm_vcpu_init(vcpu, kvm, id);
	if (err)
		goto free_vcpu;

	err = kvmppc_e500_tlb_init(vcpu_e500);
	if (err)
		goto uninit_vcpu;

	vcpu->arch.shared = (void *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
	if (!vcpu->arch.shared)
		goto uninit_tlb;

	return vcpu;

uninit_tlb:
	kvmppc_e500_tlb_uninit(vcpu_e500);
uninit_vcpu:
	kvm_vcpu_uninit(vcpu);

free_vcpu:
	kmem_cache_free(kvm_vcpu_cache, vcpu_e500);
out:
	return ERR_PTR(err);
}

void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
{
	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);

	free_page((unsigned long)vcpu->arch.shared);
	kvmppc_e500_tlb_uninit(vcpu_e500);
	kvm_vcpu_uninit(vcpu);
	kmem_cache_free(kvm_vcpu_cache, vcpu_e500);
}

int kvmppc_core_init_vm(struct kvm *kvm)
{
	int lpid;

	lpid = kvmppc_alloc_lpid();
	if (lpid < 0)
		return lpid;

	kvm->arch.lpid = lpid;
	return 0;
}

void kvmppc_core_destroy_vm(struct kvm *kvm)
{
	kvmppc_free_lpid(kvm->arch.lpid);
}

static int __init kvmppc_e500mc_init(void)
{
	int r;

	r = kvmppc_booke_init();
	if (r)
		return r;

	kvmppc_init_lpid(64);
	kvmppc_claim_lpid(0); /* host */

	return kvm_init(NULL, sizeof(struct kvmppc_vcpu_e500), 0, THIS_MODULE);
}

static void __exit kvmppc_e500mc_exit(void)
{
	kvmppc_booke_exit();
}

module_init(kvmppc_e500mc_init);
module_exit(kvmppc_e500mc_exit);
Commit	Line	Data
73196cd3	1	/*
c7ba7771	2	* Copyright (C) 2010,2012 Freescale Semiconductor, Inc. All rights reserved.
73196cd3 SW	3	*
	4	* Author: Varun Sethi, <varun.sethi@freescale.com>
	5	*
	6	* Description:
	7	* This file is derived from arch/powerpc/kvm/e500.c,
	8	* by Yu Liu <yu.liu@freescale.com>.
	9	*
	10	* This program is free software; you can redistribute it and/or modify
	11	* it under the terms of the GNU General Public License, version 2, as
	12	* published by the Free Software Foundation.
	13	*/
	14
	15	#include <linux/kvm_host.h>
	16	#include <linux/slab.h>
	17	#include <linux/err.h>
	18	#include <linux/export.h>
	19
	20	#include <asm/reg.h>
	21	#include <asm/cputable.h>
	22	#include <asm/tlbflush.h>
	23	#include <asm/kvm_ppc.h>
	24	#include <asm/dbell.h>
	25
	26	#include "booke.h"
	27	#include "e500.h"
	28
	29	void kvmppc_set_pending_interrupt(struct kvm_vcpu *vcpu, enum int_class type)
	30	{
	31	enum ppc_dbell dbell_type;
	32	unsigned long tag;
	33
	34	switch (type) {
	35	case INT_CLASS_NONCRIT:
	36	dbell_type = PPC_G_DBELL;
	37	break;
	38	case INT_CLASS_CRIT:
	39	dbell_type = PPC_G_DBELL_CRIT;
	40	break;
	41	case INT_CLASS_MC:
	42	dbell_type = PPC_G_DBELL_MC;
	43	break;
	44	default:
	45	WARN_ONCE(1, "%s: unknown int type %d\n", __func__, type);
	46	return;
	47	}
	48
	49
	50	tag = PPC_DBELL_LPID(vcpu->kvm->arch.lpid) \| vcpu->vcpu_id;
	51	mb();
	52	ppc_msgsnd(dbell_type, 0, tag);
	53	}
	54
	55	/* gtlbe must not be mapped by more than one host tlb entry */
	56	void kvmppc_e500_tlbil_one(struct kvmppc_vcpu_e500 *vcpu_e500,
	57	struct kvm_book3e_206_tlb_entry *gtlbe)
	58	{
	59	unsigned int tid, ts;
66c9897d MC	60	gva_t eaddr;
66c9897d MC	61	u32 val, lpid;
73196cd3 SW	62	unsigned long flags;
	63
	64	ts = get_tlb_ts(gtlbe);
	65	tid = get_tlb_tid(gtlbe);
	66	lpid = vcpu_e500->vcpu.kvm->arch.lpid;
	67
	68	/* We search the host TLB to invalidate its shadow TLB entry */
	69	val = (tid << 16) \| ts;
	70	eaddr = get_tlb_eaddr(gtlbe);
	71
	72	local_irq_save(flags);
	73
	74	mtspr(SPRN_MAS6, val);
	75	mtspr(SPRN_MAS5, MAS5_SGS \| lpid);
	76
	77	asm volatile("tlbsx 0, %[eaddr]\n" : : [eaddr] "r" (eaddr));
	78	val = mfspr(SPRN_MAS1);
	79	if (val & MAS1_VALID) {
	80	mtspr(SPRN_MAS1, val & ~MAS1_VALID);
	81	asm volatile("tlbwe");
	82	}
	83	mtspr(SPRN_MAS5, 0);
	84	/* NOTE: tlbsx also updates mas8, so clear it for host tlbwe */
	85	mtspr(SPRN_MAS8, 0);
	86	isync();
	87
	88	local_irq_restore(flags);
	89	}
	90
	91	void kvmppc_e500_tlbil_all(struct kvmppc_vcpu_e500 *vcpu_e500)
	92	{
	93	unsigned long flags;
	94
	95	local_irq_save(flags);
	96	mtspr(SPRN_MAS5, MAS5_SGS \| vcpu_e500->vcpu.kvm->arch.lpid);
	97	asm volatile("tlbilxlpid");
	98	mtspr(SPRN_MAS5, 0);
	99	local_irq_restore(flags);
	100	}
	101
	102	void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid)
	103	{
	104	vcpu->arch.pid = pid;
	105	}
	106
	107	void kvmppc_mmu_msr_notify(struct kvm_vcpu *vcpu, u32 old_msr)
	108	{
	109	}
	110
	111	void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
	112	{
	113	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
	114
	115	kvmppc_booke_vcpu_load(vcpu, cpu);
	116
	117	mtspr(SPRN_LPID, vcpu->kvm->arch.lpid);
	118	mtspr(SPRN_EPCR, vcpu->arch.shadow_epcr);
	119	mtspr(SPRN_GPIR, vcpu->vcpu_id);
	120	mtspr(SPRN_MSRP, vcpu->arch.shadow_msrp);
	121	mtspr(SPRN_EPLC, vcpu->arch.eplc);
	122	mtspr(SPRN_EPSC, vcpu->arch.epsc);
	123
	124	mtspr(SPRN_GIVPR, vcpu->arch.ivpr);
	125	mtspr(SPRN_GIVOR2, vcpu->arch.ivor[BOOKE_IRQPRIO_DATA_STORAGE]);
126	mtspr(SPRN_GIVOR8, vcpu->arch.ivor[BOOKE_IRQPRIO_SYSCALL]);
127	mtspr(SPRN_GSPRG0, (unsigned long)vcpu->arch.shared->sprg0);
128	mtspr(SPRN_GSPRG1, (unsigned long)vcpu->arch.shared->sprg1);
129	mtspr(SPRN_GSPRG2, (unsigned long)vcpu->arch.shared->sprg2);
130	mtspr(SPRN_GSPRG3, (unsigned long)vcpu->arch.shared->sprg3);
131
132	mtspr(SPRN_GSRR0, vcpu->arch.shared->srr0);
133	mtspr(SPRN_GSRR1, vcpu->arch.shared->srr1);
134
135	mtspr(SPRN_GEPR, vcpu->arch.epr);
136	mtspr(SPRN_GDEAR, vcpu->arch.shared->dar);
137	mtspr(SPRN_GESR, vcpu->arch.shared->esr);
138
139	if (vcpu->arch.oldpir != mfspr(SPRN_PIR))
140	kvmppc_e500_tlbil_all(vcpu_e500);
141
142	kvmppc_load_guest_fp(vcpu);
143	}
144
145	void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu)
146	{
147	vcpu->arch.eplc = mfspr(SPRN_EPLC);
148	vcpu->arch.epsc = mfspr(SPRN_EPSC);
149
150	vcpu->arch.shared->sprg0 = mfspr(SPRN_GSPRG0);
151	vcpu->arch.shared->sprg1 = mfspr(SPRN_GSPRG1);
152	vcpu->arch.shared->sprg2 = mfspr(SPRN_GSPRG2);
153	vcpu->arch.shared->sprg3 = mfspr(SPRN_GSPRG3);
154
155	vcpu->arch.shared->srr0 = mfspr(SPRN_GSRR0);
156	vcpu->arch.shared->srr1 = mfspr(SPRN_GSRR1);
157
158	vcpu->arch.epr = mfspr(SPRN_GEPR);
159	vcpu->arch.shared->dar = mfspr(SPRN_GDEAR);
160	vcpu->arch.shared->esr = mfspr(SPRN_GESR);
161
162	vcpu->arch.oldpir = mfspr(SPRN_PIR);
163
164	kvmppc_booke_vcpu_put(vcpu);
165	}
166
167	int kvmppc_core_check_processor_compat(void)
168	{
169	int r;
170
171	if (strcmp(cur_cpu_spec->cpu_name, "e500mc") == 0)
172	r = 0;
173	else if (strcmp(cur_cpu_spec->cpu_name, "e5500") == 0)
174	r = 0;
175	else
176	r = -ENOTSUPP;
177
178	return r;
179	}
180
181	int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu)
182	{
183	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
184
185	vcpu->arch.shadow_epcr = SPRN_EPCR_DSIGS \| SPRN_EPCR_DGTMI \| \
186	SPRN_EPCR_DUVD;
c7ba7771 MC	187	#ifdef CONFIG_64BIT
	188	vcpu->arch.shadow_epcr \|= SPRN_EPCR_ICM;
	189	#endif
73196cd3 SW	190	vcpu->arch.shadow_msrp = MSRP_UCLEP \| MSRP_DEP \| MSRP_PMMP;
	191	vcpu->arch.eplc = EPC_EGS \| (vcpu->kvm->arch.lpid << EPC_ELPID_SHIFT);
	192	vcpu->arch.epsc = vcpu->arch.eplc;
	193
	194	vcpu->arch.pvr = mfspr(SPRN_PVR);
	195	vcpu_e500->svr = mfspr(SPRN_SVR);
	196
	197	vcpu->arch.cpu_type = KVM_CPU_E500MC;
	198
	199	return 0;
	200	}
	201
	202	void kvmppc_core_get_sregs(struct kvm_vcpu vcpu, struct kvm_sregs sregs)
	203	{
	204	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
	205
	206	sregs->u.e.features \|= KVM_SREGS_E_ARCH206_MMU \| KVM_SREGS_E_PM \|
	207	KVM_SREGS_E_PC;
	208	sregs->u.e.impl_id = KVM_SREGS_E_IMPL_FSL;
	209
	210	sregs->u.e.impl.fsl.features = 0;
	211	sregs->u.e.impl.fsl.svr = vcpu_e500->svr;
	212	sregs->u.e.impl.fsl.hid0 = vcpu_e500->hid0;
	213	sregs->u.e.impl.fsl.mcar = vcpu_e500->mcar;
	214
	215	kvmppc_get_sregs_e500_tlb(vcpu, sregs);
	216
	217	sregs->u.e.ivor_high[3] =
	218	vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR];
	219	sregs->u.e.ivor_high[4] = vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL];
	220	sregs->u.e.ivor_high[5] = vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL_CRIT];
	221
	222	kvmppc_get_sregs_ivor(vcpu, sregs);
	223	}
	224
	225	int kvmppc_core_set_sregs(struct kvm_vcpu vcpu, struct kvm_sregs sregs)
	226	{
	227	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
	228	int ret;
	229
	230	if (sregs->u.e.impl_id == KVM_SREGS_E_IMPL_FSL) {
	231	vcpu_e500->svr = sregs->u.e.impl.fsl.svr;
	232	vcpu_e500->hid0 = sregs->u.e.impl.fsl.hid0;
	233	vcpu_e500->mcar = sregs->u.e.impl.fsl.mcar;
	234	}
	235
	236	ret = kvmppc_set_sregs_e500_tlb(vcpu, sregs);
	237	if (ret < 0)
	238	return ret;
	239
	240	if (!(sregs->u.e.features & KVM_SREGS_E_IVOR))
	241	return 0;
	242
	243	if (sregs->u.e.features & KVM_SREGS_E_PM) {
	244	vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR] =
	245	sregs->u.e.ivor_high[3];
	246	}
	247
	248	if (sregs->u.e.features & KVM_SREGS_E_PC) {
	249	vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL] =
	250	sregs->u.e.ivor_high[4];
	251	vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL_CRIT] =
	252	sregs->u.e.ivor_high[5];
	253	}
254
255	return kvmppc_set_sregs_ivor(vcpu, sregs);
256	}
257
258	struct kvm_vcpu kvmppc_core_vcpu_create(struct kvm kvm, unsigned int id)
259	{
260	struct kvmppc_vcpu_e500 *vcpu_e500;
261	struct kvm_vcpu *vcpu;
262	int err;
263
264	vcpu_e500 = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL);
265	if (!vcpu_e500) {
266	err = -ENOMEM;
267	goto out;
268	}
269	vcpu = &vcpu_e500->vcpu;
270
271	/* Invalid PIR value -- this LPID dosn't have valid state on any cpu */
272	vcpu->arch.oldpir = 0xffffffff;
273
274	err = kvm_vcpu_init(vcpu, kvm, id);
275	if (err)
276	goto free_vcpu;
277
278	err = kvmppc_e500_tlb_init(vcpu_e500);
279	if (err)
280	goto uninit_vcpu;
281
282	vcpu->arch.shared = (void *)__get_free_page(GFP_KERNEL \| __GFP_ZERO);
283	if (!vcpu->arch.shared)
284	goto uninit_tlb;
285
286	return vcpu;
287
288	uninit_tlb:
289	kvmppc_e500_tlb_uninit(vcpu_e500);
290	uninit_vcpu:
291	kvm_vcpu_uninit(vcpu);
292
293	free_vcpu:
294	kmem_cache_free(kvm_vcpu_cache, vcpu_e500);
295	out:
296	return ERR_PTR(err);
297	}
298
299	void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
300	{
301	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
302
303	free_page((unsigned long)vcpu->arch.shared);
304	kvmppc_e500_tlb_uninit(vcpu_e500);
305	kvm_vcpu_uninit(vcpu);
306	kmem_cache_free(kvm_vcpu_cache, vcpu_e500);
307	}
308
309	int kvmppc_core_init_vm(struct kvm *kvm)
310	{
311	int lpid;
312
313	lpid = kvmppc_alloc_lpid();
314	if (lpid < 0)
315	return lpid;
316
317	kvm->arch.lpid = lpid;
318	return 0;
319	}
320
321	void kvmppc_core_destroy_vm(struct kvm *kvm)
322	{
323	kvmppc_free_lpid(kvm->arch.lpid);
324	}
325
326	static int __init kvmppc_e500mc_init(void)
327	{
328	int r;
329
330	r = kvmppc_booke_init();
331	if (r)
332	return r;
333
334	kvmppc_init_lpid(64);
335	kvmppc_claim_lpid(0); /* host */
336
337	return kvm_init(NULL, sizeof(struct kvmppc_vcpu_e500), 0, THIS_MODULE);
338	}
339
340	static void __exit kvmppc_e500mc_exit(void)
341	{
342	kvmppc_booke_exit();
343	}
344
345	module_init(kvmppc_e500mc_init);
346	module_exit(kvmppc_e500mc_exit);