vgic.h 2.3 KB
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/*
 * Copyright (C) 2015, 2016 ARM Ltd.
 *
 * 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, see <http://www.gnu.org/licenses/>.
 */
#ifndef __KVM_ARM_VGIC_NEW_H__
#define __KVM_ARM_VGIC_NEW_H__

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#define PRODUCT_ID_KVM		0x4b	/* ASCII code K */
#define IMPLEMENTER_ARM		0x43b

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#define VGIC_PRI_BITS		5

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#define vgic_irq_is_sgi(intid) ((intid) < VGIC_NR_SGIS)

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struct vgic_irq *vgic_get_irq(struct kvm *kvm, struct kvm_vcpu *vcpu,
			      u32 intid);
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bool vgic_queue_irq_unlock(struct kvm *kvm, struct vgic_irq *irq);
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void vgic_kick_vcpus(struct kvm *kvm);
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void vgic_v2_process_maintenance(struct kvm_vcpu *vcpu);
void vgic_v2_fold_lr_state(struct kvm_vcpu *vcpu);
void vgic_v2_populate_lr(struct kvm_vcpu *vcpu, struct vgic_irq *irq, int lr);
void vgic_v2_clear_lr(struct kvm_vcpu *vcpu, int lr);
void vgic_v2_set_underflow(struct kvm_vcpu *vcpu);
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int vgic_register_dist_iodev(struct kvm *kvm, gpa_t dist_base_address,
			     enum vgic_type);
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#ifdef CONFIG_KVM_ARM_VGIC_V3
void vgic_v3_process_maintenance(struct kvm_vcpu *vcpu);
void vgic_v3_fold_lr_state(struct kvm_vcpu *vcpu);
void vgic_v3_populate_lr(struct kvm_vcpu *vcpu, struct vgic_irq *irq, int lr);
void vgic_v3_clear_lr(struct kvm_vcpu *vcpu, int lr);
void vgic_v3_set_underflow(struct kvm_vcpu *vcpu);
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int vgic_register_redist_iodevs(struct kvm *kvm, gpa_t dist_base_address);
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#else
static inline void vgic_v3_process_maintenance(struct kvm_vcpu *vcpu)
{
}

static inline void vgic_v3_fold_lr_state(struct kvm_vcpu *vcpu)
{
}

static inline void vgic_v3_populate_lr(struct kvm_vcpu *vcpu,
				       struct vgic_irq *irq, int lr)
{
}

static inline void vgic_v3_clear_lr(struct kvm_vcpu *vcpu, int lr)
{
}

static inline void vgic_v3_set_underflow(struct kvm_vcpu *vcpu)
{
}
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static inline int vgic_register_redist_iodevs(struct kvm *kvm,
					      gpa_t dist_base_address)
{
	return -ENODEV;
}
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#endif

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#endif