124 lines
3.9 KiB
C
124 lines
3.9 KiB
C
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/*
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* Copyright (C) 2015, 2016 ARM Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __KVM_ARM_VGIC_NEW_H__
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#define __KVM_ARM_VGIC_NEW_H__
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#include <linux/irqchip/arm-gic-common.h>
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#define PRODUCT_ID_KVM 0x4b /* ASCII code K */
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#define IMPLEMENTER_ARM 0x43b
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#define VGIC_ADDR_UNDEF (-1)
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#define IS_VGIC_ADDR_UNDEF(_x) ((_x) == VGIC_ADDR_UNDEF)
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#define INTERRUPT_ID_BITS_SPIS 10
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#define INTERRUPT_ID_BITS_ITS 16
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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_vmcr {
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u32 ctlr;
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u32 abpr;
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u32 bpr;
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u32 pmr;
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};
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struct vgic_irq *vgic_get_irq(struct kvm *kvm, struct kvm_vcpu *vcpu,
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u32 intid);
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void vgic_put_irq(struct kvm *kvm, struct vgic_irq *irq);
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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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int vgic_check_ioaddr(struct kvm *kvm, phys_addr_t *ioaddr,
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phys_addr_t addr, phys_addr_t alignment);
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void vgic_v2_process_maintenance(struct kvm_vcpu *vcpu);
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void vgic_v2_fold_lr_state(struct kvm_vcpu *vcpu);
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void vgic_v2_populate_lr(struct kvm_vcpu *vcpu, struct vgic_irq *irq, int lr);
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void vgic_v2_clear_lr(struct kvm_vcpu *vcpu, int lr);
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void vgic_v2_set_underflow(struct kvm_vcpu *vcpu);
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int vgic_v2_has_attr_regs(struct kvm_device *dev, struct kvm_device_attr *attr);
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int vgic_v2_dist_uaccess(struct kvm_vcpu *vcpu, bool is_write,
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int offset, u32 *val);
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int vgic_v2_cpuif_uaccess(struct kvm_vcpu *vcpu, bool is_write,
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int offset, u32 *val);
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void vgic_v2_set_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr);
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void vgic_v2_get_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr);
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void vgic_v2_enable(struct kvm_vcpu *vcpu);
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int vgic_v2_probe(const struct gic_kvm_info *info);
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int vgic_v2_map_resources(struct kvm *kvm);
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int vgic_register_dist_iodev(struct kvm *kvm, gpa_t dist_base_address,
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enum vgic_type);
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static inline void vgic_get_irq_kref(struct vgic_irq *irq)
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{
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if (irq->intid < VGIC_MIN_LPI)
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return;
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kref_get(&irq->refcount);
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}
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void vgic_v3_process_maintenance(struct kvm_vcpu *vcpu);
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void vgic_v3_fold_lr_state(struct kvm_vcpu *vcpu);
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void vgic_v3_populate_lr(struct kvm_vcpu *vcpu, struct vgic_irq *irq, int lr);
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void vgic_v3_clear_lr(struct kvm_vcpu *vcpu, int lr);
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void vgic_v3_set_underflow(struct kvm_vcpu *vcpu);
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void vgic_v3_set_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr);
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void vgic_v3_get_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr);
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void vgic_v3_enable(struct kvm_vcpu *vcpu);
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int vgic_v3_probe(const struct gic_kvm_info *info);
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int vgic_v3_map_resources(struct kvm *kvm);
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int vgic_register_redist_iodevs(struct kvm *kvm, gpa_t dist_base_address);
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#ifdef CONFIG_KVM_ARM_VGIC_V3_ITS
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int vgic_register_its_iodevs(struct kvm *kvm);
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bool vgic_has_its(struct kvm *kvm);
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int kvm_vgic_register_its_device(void);
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void vgic_enable_lpis(struct kvm_vcpu *vcpu);
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int vgic_its_inject_msi(struct kvm *kvm, struct kvm_msi *msi);
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#else
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static inline int vgic_register_its_iodevs(struct kvm *kvm)
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{
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return -ENODEV;
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}
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static inline bool vgic_has_its(struct kvm *kvm)
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{
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return false;
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}
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static inline int kvm_vgic_register_its_device(void)
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{
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return -ENODEV;
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}
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static inline void vgic_enable_lpis(struct kvm_vcpu *vcpu)
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{
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}
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static inline int vgic_its_inject_msi(struct kvm *kvm, struct kvm_msi *msi)
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{
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return -ENODEV;
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}
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#endif
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int kvm_register_vgic_device(unsigned long type);
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int vgic_lazy_init(struct kvm *kvm);
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int vgic_init(struct kvm *kvm);
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#endif
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