/*
 * 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.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * Copyright IBM Corp. 2008
 *
 * Authors: Hollis Blanchard <hollisb@us.ibm.com>
 */

#ifndef __KVM_BOOKE_H__
#define __KVM_BOOKE_H__

#include <linux/types.h>
#include <linux/kvm_host.h>
#include <asm/kvm_ppc.h>
#include "timing.h"

/* interrupt priortity ordering */
#define BOOKE_IRQPRIO_DATA_STORAGE 0
#define BOOKE_IRQPRIO_INST_STORAGE 1
#define BOOKE_IRQPRIO_ALIGNMENT 2
#define BOOKE_IRQPRIO_PROGRAM 3
#define BOOKE_IRQPRIO_FP_UNAVAIL 4
#define BOOKE_IRQPRIO_SYSCALL 5
#define BOOKE_IRQPRIO_AP_UNAVAIL 6
#define BOOKE_IRQPRIO_DTLB_MISS 7
#define BOOKE_IRQPRIO_ITLB_MISS 8
#define BOOKE_IRQPRIO_MACHINE_CHECK 9
#define BOOKE_IRQPRIO_DEBUG 10
#define BOOKE_IRQPRIO_CRITICAL 11
#define BOOKE_IRQPRIO_WATCHDOG 12
#define BOOKE_IRQPRIO_EXTERNAL 13
#define BOOKE_IRQPRIO_FIT 14
#define BOOKE_IRQPRIO_DECREMENTER 15

/* Helper function for "full" MSR writes. No need to call this if only EE is
 * changing. */
static inline void kvmppc_set_msr(struct kvm_vcpu *vcpu, u32 new_msr)
{
	if ((new_msr & MSR_PR) != (vcpu->arch.msr & MSR_PR))
		kvmppc_mmu_priv_switch(vcpu, new_msr & MSR_PR);

	vcpu->arch.msr = new_msr;

	if (vcpu->arch.msr & MSR_WE) {
		kvm_vcpu_block(vcpu);
		kvmppc_set_exit_type(vcpu, EMULATED_MTMSRWE_EXITS);
	};
}

int kvmppc_booke_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
                            unsigned int inst, int *advance);
int kvmppc_booke_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt);
int kvmppc_booke_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs);

#endif /* __KVM_BOOKE_H__ */