[linux-2.6-block.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 <linux/miscdevice.h>
#include <linux/module.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)
{
}

static DEFINE_PER_CPU(struct kvm_vcpu *[KVMPPC_NR_LPIDS], last_vcpu_of_lpid);

static void kvmppc_core_vcpu_load_e500mc(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) ||
	    __get_cpu_var(last_vcpu_of_lpid)[vcpu->kvm->arch.lpid] != vcpu) {
		kvmppc_e500_tlbil_all(vcpu_e500);
		__get_cpu_var(last_vcpu_of_lpid)[vcpu->kvm->arch.lpid] = vcpu;
	}

	kvmppc_load_guest_fp(vcpu);
}

static void kvmppc_core_vcpu_put_e500mc(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;
}

static int kvmppc_core_get_sregs_e500mc(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];

	return kvmppc_get_sregs_ivor(vcpu, sregs);
}

static int kvmppc_core_set_sregs_e500mc(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);
}

static int kvmppc_get_one_reg_e500mc(struct kvm_vcpu *vcpu, u64 id,
			      union kvmppc_one_reg *val)
{
	int r = 0;

	switch (id) {
	case KVM_REG_PPC_SPRG9:
		*val = get_reg_val(id, vcpu->arch.sprg9);
		break;
	default:
		r = kvmppc_get_one_reg_e500_tlb(vcpu, id, val);
	}

	return r;
}

static int kvmppc_set_one_reg_e500mc(struct kvm_vcpu *vcpu, u64 id,
			      union kvmppc_one_reg *val)
{
	int r = 0;

	switch (id) {
	case KVM_REG_PPC_SPRG9:
		vcpu->arch.sprg9 = set_reg_val(id, *val);
		break;
	default:
		r = kvmppc_set_one_reg_e500_tlb(vcpu, id, val);
	}

	return r;
}

static struct kvm_vcpu *kvmppc_core_vcpu_create_e500mc(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);
}

static void kvmppc_core_vcpu_free_e500mc(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);
}

static int kvmppc_core_init_vm_e500mc(struct kvm *kvm)
{
	int lpid;

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

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

static void kvmppc_core_destroy_vm_e500mc(struct kvm *kvm)
{
	kvmppc_free_lpid(kvm->arch.lpid);
}

static struct kvmppc_ops kvm_ops_e500mc = {
	.get_sregs = kvmppc_core_get_sregs_e500mc,
	.set_sregs = kvmppc_core_set_sregs_e500mc,
	.get_one_reg = kvmppc_get_one_reg_e500mc,
	.set_one_reg = kvmppc_set_one_reg_e500mc,
	.vcpu_load   = kvmppc_core_vcpu_load_e500mc,
	.vcpu_put    = kvmppc_core_vcpu_put_e500mc,
	.vcpu_create = kvmppc_core_vcpu_create_e500mc,
	.vcpu_free   = kvmppc_core_vcpu_free_e500mc,
	.mmu_destroy  = kvmppc_mmu_destroy_e500,
	.init_vm = kvmppc_core_init_vm_e500mc,
	.destroy_vm = kvmppc_core_destroy_vm_e500mc,
	.emulate_op = kvmppc_core_emulate_op_e500,
	.emulate_mtspr = kvmppc_core_emulate_mtspr_e500,
	.emulate_mfspr = kvmppc_core_emulate_mfspr_e500,
};

static int __init kvmppc_e500mc_init(void)
{
	int r;

	r = kvmppc_booke_init();
	if (r)
		goto err_out;

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

	r = kvm_init(NULL, sizeof(struct kvmppc_vcpu_e500), 0, THIS_MODULE);
	if (r)
		goto err_out;
	kvm_ops_e500mc.owner = THIS_MODULE;
	kvmppc_pr_ops = &kvm_ops_e500mc;

err_out:
	return r;
}

static void __exit kvmppc_e500mc_exit(void)
{
	kvmppc_pr_ops = NULL;
	kvmppc_booke_exit();
}

module_init(kvmppc_e500mc_init);
module_exit(kvmppc_e500mc_exit);
MODULE_ALIAS_MISCDEV(KVM_MINOR);
MODULE_ALIAS("devname:kvm");
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>
398a76c6 AG	19	#include <linux/miscdevice.h>
398a76c6 AG	20	#include <linux/module.h>
73196cd3 SW	21
	22	#include <asm/reg.h>
	23	#include <asm/cputable.h>
	24	#include <asm/tlbflush.h>
	25	#include <asm/kvm_ppc.h>
	26	#include <asm/dbell.h>
	27
	28	#include "booke.h"
	29	#include "e500.h"
	30
	31	void kvmppc_set_pending_interrupt(struct kvm_vcpu *vcpu, enum int_class type)
	32	{
	33	enum ppc_dbell dbell_type;
	34	unsigned long tag;
	35
	36	switch (type) {
	37	case INT_CLASS_NONCRIT:
	38	dbell_type = PPC_G_DBELL;
	39	break;
	40	case INT_CLASS_CRIT:
	41	dbell_type = PPC_G_DBELL_CRIT;
	42	break;
	43	case INT_CLASS_MC:
	44	dbell_type = PPC_G_DBELL_MC;
	45	break;
	46	default:
	47	WARN_ONCE(1, "%s: unknown int type %d\n", __func__, type);
	48	return;
	49	}
	50
	51
	52	tag = PPC_DBELL_LPID(vcpu->kvm->arch.lpid) \| vcpu->vcpu_id;
	53	mb();
	54	ppc_msgsnd(dbell_type, 0, tag);
	55	}
	56
	57	/* gtlbe must not be mapped by more than one host tlb entry */
	58	void kvmppc_e500_tlbil_one(struct kvmppc_vcpu_e500 *vcpu_e500,
	59	struct kvm_book3e_206_tlb_entry *gtlbe)
	60	{
	61	unsigned int tid, ts;
66c9897d MC	62	gva_t eaddr;
66c9897d MC	63	u32 val, lpid;
73196cd3 SW	64	unsigned long flags;
	65
	66	ts = get_tlb_ts(gtlbe);
	67	tid = get_tlb_tid(gtlbe);
	68	lpid = vcpu_e500->vcpu.kvm->arch.lpid;
	69
	70	/* We search the host TLB to invalidate its shadow TLB entry */
	71	val = (tid << 16) \| ts;
	72	eaddr = get_tlb_eaddr(gtlbe);
	73
	74	local_irq_save(flags);
	75
	76	mtspr(SPRN_MAS6, val);
	77	mtspr(SPRN_MAS5, MAS5_SGS \| lpid);
	78
	79	asm volatile("tlbsx 0, %[eaddr]\n" : : [eaddr] "r" (eaddr));
	80	val = mfspr(SPRN_MAS1);
	81	if (val & MAS1_VALID) {
	82	mtspr(SPRN_MAS1, val & ~MAS1_VALID);
	83	asm volatile("tlbwe");
	84	}
	85	mtspr(SPRN_MAS5, 0);
	86	/* NOTE: tlbsx also updates mas8, so clear it for host tlbwe */
	87	mtspr(SPRN_MAS8, 0);
	88	isync();
	89
	90	local_irq_restore(flags);
	91	}
	92
	93	void kvmppc_e500_tlbil_all(struct kvmppc_vcpu_e500 *vcpu_e500)
	94	{
	95	unsigned long flags;
	96
	97	local_irq_save(flags);
	98	mtspr(SPRN_MAS5, MAS5_SGS \| vcpu_e500->vcpu.kvm->arch.lpid);
	99	asm volatile("tlbilxlpid");
	100	mtspr(SPRN_MAS5, 0);
	101	local_irq_restore(flags);
	102	}
	103
	104	void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid)
	105	{
	106	vcpu->arch.pid = pid;
	107	}
	108
	109	void kvmppc_mmu_msr_notify(struct kvm_vcpu *vcpu, u32 old_msr)
	110	{
	111	}
	112
1f0eeb7e	113	static DEFINE_PER_CPU(struct kvm_vcpu *[KVMPPC_NR_LPIDS], last_vcpu_of_lpid);
c5e6cb05	114
3a167bea	115	static void kvmppc_core_vcpu_load_e500mc(struct kvm_vcpu *vcpu, int cpu)
73196cd3 SW	116	{
	117	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
	118
	119	kvmppc_booke_vcpu_load(vcpu, cpu);
	120
	121	mtspr(SPRN_LPID, vcpu->kvm->arch.lpid);
	122	mtspr(SPRN_EPCR, vcpu->arch.shadow_epcr);
	123	mtspr(SPRN_GPIR, vcpu->vcpu_id);
	124	mtspr(SPRN_MSRP, vcpu->arch.shadow_msrp);
	125	mtspr(SPRN_EPLC, vcpu->arch.eplc);
	126	mtspr(SPRN_EPSC, vcpu->arch.epsc);
	127
	128	mtspr(SPRN_GIVPR, vcpu->arch.ivpr);
	129	mtspr(SPRN_GIVOR2, vcpu->arch.ivor[BOOKE_IRQPRIO_DATA_STORAGE]);
	130	mtspr(SPRN_GIVOR8, vcpu->arch.ivor[BOOKE_IRQPRIO_SYSCALL]);
	131	mtspr(SPRN_GSPRG0, (unsigned long)vcpu->arch.shared->sprg0);
	132	mtspr(SPRN_GSPRG1, (unsigned long)vcpu->arch.shared->sprg1);
	133	mtspr(SPRN_GSPRG2, (unsigned long)vcpu->arch.shared->sprg2);
	134	mtspr(SPRN_GSPRG3, (unsigned long)vcpu->arch.shared->sprg3);
	135
	136	mtspr(SPRN_GSRR0, vcpu->arch.shared->srr0);
	137	mtspr(SPRN_GSRR1, vcpu->arch.shared->srr1);
	138
	139	mtspr(SPRN_GEPR, vcpu->arch.epr);
	140	mtspr(SPRN_GDEAR, vcpu->arch.shared->dar);
	141	mtspr(SPRN_GESR, vcpu->arch.shared->esr);
	142
c5e6cb05	143	if (vcpu->arch.oldpir != mfspr(SPRN_PIR) \|\|
1f0eeb7e	144	__get_cpu_var(last_vcpu_of_lpid)[vcpu->kvm->arch.lpid] != vcpu) {
73196cd3	145	kvmppc_e500_tlbil_all(vcpu_e500);
1f0eeb7e	146	__get_cpu_var(last_vcpu_of_lpid)[vcpu->kvm->arch.lpid] = vcpu;
c5e6cb05	147	}
73196cd3 SW	148
	149	kvmppc_load_guest_fp(vcpu);
	150	}
	151
3a167bea	152	static void kvmppc_core_vcpu_put_e500mc(struct kvm_vcpu *vcpu)
73196cd3 SW	153	{
	154	vcpu->arch.eplc = mfspr(SPRN_EPLC);
	155	vcpu->arch.epsc = mfspr(SPRN_EPSC);
	156
	157	vcpu->arch.shared->sprg0 = mfspr(SPRN_GSPRG0);
	158	vcpu->arch.shared->sprg1 = mfspr(SPRN_GSPRG1);
	159	vcpu->arch.shared->sprg2 = mfspr(SPRN_GSPRG2);
	160	vcpu->arch.shared->sprg3 = mfspr(SPRN_GSPRG3);
	161
	162	vcpu->arch.shared->srr0 = mfspr(SPRN_GSRR0);
	163	vcpu->arch.shared->srr1 = mfspr(SPRN_GSRR1);
	164
	165	vcpu->arch.epr = mfspr(SPRN_GEPR);
	166	vcpu->arch.shared->dar = mfspr(SPRN_GDEAR);
	167	vcpu->arch.shared->esr = mfspr(SPRN_GESR);
	168
	169	vcpu->arch.oldpir = mfspr(SPRN_PIR);
	170
	171	kvmppc_booke_vcpu_put(vcpu);
	172	}
	173
	174	int kvmppc_core_check_processor_compat(void)
	175	{
	176	int r;
	177
	178	if (strcmp(cur_cpu_spec->cpu_name, "e500mc") == 0)
	179	r = 0;
	180	else if (strcmp(cur_cpu_spec->cpu_name, "e5500") == 0)
	181	r = 0;
	182	else
	183	r = -ENOTSUPP;
	184
	185	return r;
	186	}
	187
	188	int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu)
	189	{
	190	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
	191
	192	vcpu->arch.shadow_epcr = SPRN_EPCR_DSIGS \| SPRN_EPCR_DGTMI \| \
	193	SPRN_EPCR_DUVD;
c7ba7771 MC	194	#ifdef CONFIG_64BIT
	195	vcpu->arch.shadow_epcr \|= SPRN_EPCR_ICM;
	196	#endif
73196cd3 SW	197	vcpu->arch.shadow_msrp = MSRP_UCLEP \| MSRP_DEP \| MSRP_PMMP;
	198	vcpu->arch.eplc = EPC_EGS \| (vcpu->kvm->arch.lpid << EPC_ELPID_SHIFT);
	199	vcpu->arch.epsc = vcpu->arch.eplc;
	200
	201	vcpu->arch.pvr = mfspr(SPRN_PVR);
	202	vcpu_e500->svr = mfspr(SPRN_SVR);
	203
	204	vcpu->arch.cpu_type = KVM_CPU_E500MC;
	205
	206	return 0;
	207	}
	208
3a167bea AK	209	static int kvmppc_core_get_sregs_e500mc(struct kvm_vcpu *vcpu,
3a167bea AK	210	struct kvm_sregs *sregs)
73196cd3 SW	211	{
	212	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
	213
	214	sregs->u.e.features \|= KVM_SREGS_E_ARCH206_MMU \| KVM_SREGS_E_PM \|
	215	KVM_SREGS_E_PC;
	216	sregs->u.e.impl_id = KVM_SREGS_E_IMPL_FSL;
	217
	218	sregs->u.e.impl.fsl.features = 0;
	219	sregs->u.e.impl.fsl.svr = vcpu_e500->svr;
	220	sregs->u.e.impl.fsl.hid0 = vcpu_e500->hid0;
	221	sregs->u.e.impl.fsl.mcar = vcpu_e500->mcar;
	222
	223	kvmppc_get_sregs_e500_tlb(vcpu, sregs);
	224
	225	sregs->u.e.ivor_high[3] =
	226	vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR];
	227	sregs->u.e.ivor_high[4] = vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL];
	228	sregs->u.e.ivor_high[5] = vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL_CRIT];
	229
3a167bea	230	return kvmppc_get_sregs_ivor(vcpu, sregs);
73196cd3 SW	231	}
73196cd3 SW	232
3a167bea AK	233	static int kvmppc_core_set_sregs_e500mc(struct kvm_vcpu *vcpu,
3a167bea AK	234	struct kvm_sregs *sregs)
73196cd3 SW	235	{
	236	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
	237	int ret;
	238
	239	if (sregs->u.e.impl_id == KVM_SREGS_E_IMPL_FSL) {
	240	vcpu_e500->svr = sregs->u.e.impl.fsl.svr;
	241	vcpu_e500->hid0 = sregs->u.e.impl.fsl.hid0;
	242	vcpu_e500->mcar = sregs->u.e.impl.fsl.mcar;
	243	}
	244
	245	ret = kvmppc_set_sregs_e500_tlb(vcpu, sregs);
	246	if (ret < 0)
	247	return ret;
	248
	249	if (!(sregs->u.e.features & KVM_SREGS_E_IVOR))
	250	return 0;
	251
	252	if (sregs->u.e.features & KVM_SREGS_E_PM) {
	253	vcpu->arch.ivor[BOOKE_IRQPRIO_PERFORMANCE_MONITOR] =
	254	sregs->u.e.ivor_high[3];
	255	}
	256
	257	if (sregs->u.e.features & KVM_SREGS_E_PC) {
	258	vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL] =
	259	sregs->u.e.ivor_high[4];
	260	vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL_CRIT] =
	261	sregs->u.e.ivor_high[5];
	262	}
	263
	264	return kvmppc_set_sregs_ivor(vcpu, sregs);
	265	}
	266
3a167bea AK	267	static int kvmppc_get_one_reg_e500mc(struct kvm_vcpu *vcpu, u64 id,
3a167bea AK	268	union kvmppc_one_reg *val)
35b299e2	269	{
28d2f421 BB	270	int r = 0;
	271
	272	switch (id) {
	273	case KVM_REG_PPC_SPRG9:
	274	*val = get_reg_val(id, vcpu->arch.sprg9);
	275	break;
	276	default:
	277	r = kvmppc_get_one_reg_e500_tlb(vcpu, id, val);
	278	}
	279
a85d2aa2	280	return r;
35b299e2 MC	281	}
35b299e2 MC	282
3a167bea AK	283	static int kvmppc_set_one_reg_e500mc(struct kvm_vcpu *vcpu, u64 id,
3a167bea AK	284	union kvmppc_one_reg *val)
35b299e2	285	{
28d2f421 BB	286	int r = 0;
	287
	288	switch (id) {
	289	case KVM_REG_PPC_SPRG9:
	290	vcpu->arch.sprg9 = set_reg_val(id, *val);
	291	break;
	292	default:
	293	r = kvmppc_set_one_reg_e500_tlb(vcpu, id, val);
	294	}
	295
a85d2aa2	296	return r;
35b299e2 MC	297	}
35b299e2 MC	298
3a167bea AK	299	static struct kvm_vcpu kvmppc_core_vcpu_create_e500mc(struct kvm kvm,
3a167bea AK	300	unsigned int id)
73196cd3 SW	301	{
	302	struct kvmppc_vcpu_e500 *vcpu_e500;
	303	struct kvm_vcpu *vcpu;
	304	int err;
	305
	306	vcpu_e500 = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL);
	307	if (!vcpu_e500) {
	308	err = -ENOMEM;
	309	goto out;
	310	}
	311	vcpu = &vcpu_e500->vcpu;
	312
	313	/* Invalid PIR value -- this LPID dosn't have valid state on any cpu */
	314	vcpu->arch.oldpir = 0xffffffff;
	315
	316	err = kvm_vcpu_init(vcpu, kvm, id);
	317	if (err)
	318	goto free_vcpu;
	319
	320	err = kvmppc_e500_tlb_init(vcpu_e500);
	321	if (err)
	322	goto uninit_vcpu;
	323
	324	vcpu->arch.shared = (void *)__get_free_page(GFP_KERNEL \| __GFP_ZERO);
	325	if (!vcpu->arch.shared)
	326	goto uninit_tlb;
	327
	328	return vcpu;
	329
	330	uninit_tlb:
	331	kvmppc_e500_tlb_uninit(vcpu_e500);
	332	uninit_vcpu:
	333	kvm_vcpu_uninit(vcpu);
	334
	335	free_vcpu:
	336	kmem_cache_free(kvm_vcpu_cache, vcpu_e500);
	337	out:
	338	return ERR_PTR(err);
	339	}
	340
3a167bea	341	static void kvmppc_core_vcpu_free_e500mc(struct kvm_vcpu *vcpu)
73196cd3 SW	342	{
	343	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
	344
	345	free_page((unsigned long)vcpu->arch.shared);
	346	kvmppc_e500_tlb_uninit(vcpu_e500);
	347	kvm_vcpu_uninit(vcpu);
	348	kmem_cache_free(kvm_vcpu_cache, vcpu_e500);
	349	}
	350
3a167bea	351	static int kvmppc_core_init_vm_e500mc(struct kvm *kvm)
73196cd3 SW	352	{
	353	int lpid;
	354
	355	lpid = kvmppc_alloc_lpid();
	356	if (lpid < 0)
	357	return lpid;
	358
	359	kvm->arch.lpid = lpid;
	360	return 0;
	361	}
	362
3a167bea	363	static void kvmppc_core_destroy_vm_e500mc(struct kvm *kvm)
73196cd3 SW	364	{
	365	kvmppc_free_lpid(kvm->arch.lpid);
	366	}
	367
3a167bea AK	368	static struct kvmppc_ops kvm_ops_e500mc = {
	369	.get_sregs = kvmppc_core_get_sregs_e500mc,
	370	.set_sregs = kvmppc_core_set_sregs_e500mc,
	371	.get_one_reg = kvmppc_get_one_reg_e500mc,
	372	.set_one_reg = kvmppc_set_one_reg_e500mc,
	373	.vcpu_load = kvmppc_core_vcpu_load_e500mc,
	374	.vcpu_put = kvmppc_core_vcpu_put_e500mc,
	375	.vcpu_create = kvmppc_core_vcpu_create_e500mc,
	376	.vcpu_free = kvmppc_core_vcpu_free_e500mc,
	377	.mmu_destroy = kvmppc_mmu_destroy_e500,
	378	.init_vm = kvmppc_core_init_vm_e500mc,
	379	.destroy_vm = kvmppc_core_destroy_vm_e500mc,
	380	.emulate_op = kvmppc_core_emulate_op_e500,
	381	.emulate_mtspr = kvmppc_core_emulate_mtspr_e500,
	382	.emulate_mfspr = kvmppc_core_emulate_mfspr_e500,
	383	};
	384
73196cd3 SW	385	static int __init kvmppc_e500mc_init(void)
	386	{
	387	int r;
	388
	389	r = kvmppc_booke_init();
	390	if (r)
3a167bea	391	goto err_out;
73196cd3 SW	392
	393	kvmppc_init_lpid(64);
	394	kvmppc_claim_lpid(0); /* host */
	395
cbbc58d4	396	r = kvm_init(NULL, sizeof(struct kvmppc_vcpu_e500), 0, THIS_MODULE);
3a167bea AK	397	if (r)
3a167bea AK	398	goto err_out;
cbbc58d4 AK	399	kvm_ops_e500mc.owner = THIS_MODULE;
	400	kvmppc_pr_ops = &kvm_ops_e500mc;
	401
3a167bea AK	402	err_out:
3a167bea AK	403	return r;
73196cd3 SW	404	}
	405
	406	static void __exit kvmppc_e500mc_exit(void)
	407	{
cbbc58d4	408	kvmppc_pr_ops = NULL;
73196cd3 SW	409	kvmppc_booke_exit();
	410	}
	411
	412	module_init(kvmppc_e500mc_init);
	413	module_exit(kvmppc_e500mc_exit);
398a76c6 AG	414	MODULE_ALIAS_MISCDEV(KVM_MINOR);
398a76c6 AG	415	MODULE_ALIAS("devname:kvm");