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64a959d6 CD |
1 | /* |
2 | * Copyright (C) 2015, 2016 ARM Ltd. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
15 | */ | |
16 | #ifndef __KVM_ARM_VGIC_NEW_H__ | |
17 | #define __KVM_ARM_VGIC_NEW_H__ | |
18 | ||
90977732 EA |
19 | #include <linux/irqchip/arm-gic-common.h> |
20 | ||
2b0cda87 MZ |
21 | #define PRODUCT_ID_KVM 0x4b /* ASCII code K */ |
22 | #define IMPLEMENTER_ARM 0x43b | |
23 | ||
e2c1f9ab EA |
24 | #define VGIC_ADDR_UNDEF (-1) |
25 | #define IS_VGIC_ADDR_UNDEF(_x) ((_x) == VGIC_ADDR_UNDEF) | |
26 | ||
fd59ed3b | 27 | #define INTERRUPT_ID_BITS_SPIS 10 |
055658bf AP |
28 | #define VGIC_PRI_BITS 5 |
29 | ||
0919e84c MZ |
30 | #define vgic_irq_is_sgi(intid) ((intid) < VGIC_NR_SGIS) |
31 | ||
e4823a7a AP |
32 | struct vgic_vmcr { |
33 | u32 ctlr; | |
34 | u32 abpr; | |
35 | u32 bpr; | |
36 | u32 pmr; | |
37 | }; | |
38 | ||
64a959d6 CD |
39 | struct vgic_irq *vgic_get_irq(struct kvm *kvm, struct kvm_vcpu *vcpu, |
40 | u32 intid); | |
5dd4b924 | 41 | void vgic_put_irq(struct kvm *kvm, struct vgic_irq *irq); |
81eeb95d | 42 | bool vgic_queue_irq_unlock(struct kvm *kvm, struct vgic_irq *irq); |
2b0cda87 | 43 | void vgic_kick_vcpus(struct kvm *kvm); |
64a959d6 | 44 | |
1085fdc6 AP |
45 | int vgic_check_ioaddr(struct kvm *kvm, phys_addr_t *ioaddr, |
46 | phys_addr_t addr, phys_addr_t alignment); | |
47 | ||
140b086d MZ |
48 | void vgic_v2_process_maintenance(struct kvm_vcpu *vcpu); |
49 | void vgic_v2_fold_lr_state(struct kvm_vcpu *vcpu); | |
50 | void vgic_v2_populate_lr(struct kvm_vcpu *vcpu, struct vgic_irq *irq, int lr); | |
51 | void vgic_v2_clear_lr(struct kvm_vcpu *vcpu, int lr); | |
52 | void vgic_v2_set_underflow(struct kvm_vcpu *vcpu); | |
f94591e2 | 53 | int vgic_v2_has_attr_regs(struct kvm_device *dev, struct kvm_device_attr *attr); |
c3199f28 CD |
54 | int vgic_v2_dist_uaccess(struct kvm_vcpu *vcpu, bool is_write, |
55 | int offset, u32 *val); | |
878c569e AP |
56 | int vgic_v2_cpuif_uaccess(struct kvm_vcpu *vcpu, bool is_write, |
57 | int offset, u32 *val); | |
e4823a7a AP |
58 | void vgic_v2_set_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr); |
59 | void vgic_v2_get_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr); | |
ad275b8b | 60 | void vgic_v2_enable(struct kvm_vcpu *vcpu); |
90977732 | 61 | int vgic_v2_probe(const struct gic_kvm_info *info); |
b0442ee2 | 62 | int vgic_v2_map_resources(struct kvm *kvm); |
fb848db3 AP |
63 | int vgic_register_dist_iodev(struct kvm *kvm, gpa_t dist_base_address, |
64 | enum vgic_type); | |
140b086d | 65 | |
59529f69 MZ |
66 | #ifdef CONFIG_KVM_ARM_VGIC_V3 |
67 | void vgic_v3_process_maintenance(struct kvm_vcpu *vcpu); | |
68 | void vgic_v3_fold_lr_state(struct kvm_vcpu *vcpu); | |
69 | void vgic_v3_populate_lr(struct kvm_vcpu *vcpu, struct vgic_irq *irq, int lr); | |
70 | void vgic_v3_clear_lr(struct kvm_vcpu *vcpu, int lr); | |
71 | void vgic_v3_set_underflow(struct kvm_vcpu *vcpu); | |
e4823a7a AP |
72 | void vgic_v3_set_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr); |
73 | void vgic_v3_get_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr); | |
ad275b8b | 74 | void vgic_v3_enable(struct kvm_vcpu *vcpu); |
90977732 | 75 | int vgic_v3_probe(const struct gic_kvm_info *info); |
b0442ee2 | 76 | int vgic_v3_map_resources(struct kvm *kvm); |
ed9b8cef | 77 | int vgic_register_redist_iodevs(struct kvm *kvm, gpa_t dist_base_address); |
59c5ab40 | 78 | bool vgic_has_its(struct kvm *kvm); |
59529f69 MZ |
79 | #else |
80 | static inline void vgic_v3_process_maintenance(struct kvm_vcpu *vcpu) | |
81 | { | |
82 | } | |
83 | ||
84 | static inline void vgic_v3_fold_lr_state(struct kvm_vcpu *vcpu) | |
85 | { | |
86 | } | |
87 | ||
88 | static inline void vgic_v3_populate_lr(struct kvm_vcpu *vcpu, | |
89 | struct vgic_irq *irq, int lr) | |
90 | { | |
91 | } | |
92 | ||
93 | static inline void vgic_v3_clear_lr(struct kvm_vcpu *vcpu, int lr) | |
94 | { | |
95 | } | |
96 | ||
97 | static inline void vgic_v3_set_underflow(struct kvm_vcpu *vcpu) | |
98 | { | |
99 | } | |
ed9b8cef | 100 | |
e4823a7a AP |
101 | static inline |
102 | void vgic_v3_set_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr) | |
103 | { | |
104 | } | |
105 | ||
106 | static inline | |
107 | void vgic_v3_get_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr) | |
108 | { | |
109 | } | |
110 | ||
ad275b8b EA |
111 | static inline void vgic_v3_enable(struct kvm_vcpu *vcpu) |
112 | { | |
113 | } | |
114 | ||
90977732 EA |
115 | static inline int vgic_v3_probe(const struct gic_kvm_info *info) |
116 | { | |
117 | return -ENODEV; | |
118 | } | |
119 | ||
b0442ee2 EA |
120 | static inline int vgic_v3_map_resources(struct kvm *kvm) |
121 | { | |
122 | return -ENODEV; | |
123 | } | |
124 | ||
ed9b8cef AP |
125 | static inline int vgic_register_redist_iodevs(struct kvm *kvm, |
126 | gpa_t dist_base_address) | |
127 | { | |
128 | return -ENODEV; | |
129 | } | |
59c5ab40 AP |
130 | |
131 | static inline bool vgic_has_its(struct kvm *kvm) | |
132 | { | |
133 | return false; | |
134 | } | |
135 | ||
59529f69 MZ |
136 | #endif |
137 | ||
42c8870f | 138 | int kvm_register_vgic_device(unsigned long type); |
ad275b8b EA |
139 | int vgic_lazy_init(struct kvm *kvm); |
140 | int vgic_init(struct kvm *kvm); | |
c86c7721 | 141 | |
64a959d6 | 142 | #endif |