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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 |
33d3bc95 | 28 | #define INTERRUPT_ID_BITS_ITS 16 |
055658bf AP |
29 | #define VGIC_PRI_BITS 5 |
30 | ||
0919e84c MZ |
31 | #define vgic_irq_is_sgi(intid) ((intid) < VGIC_NR_SGIS) |
32 | ||
e4823a7a AP |
33 | struct vgic_vmcr { |
34 | u32 ctlr; | |
35 | u32 abpr; | |
36 | u32 bpr; | |
37 | u32 pmr; | |
38 | }; | |
39 | ||
64a959d6 CD |
40 | struct vgic_irq *vgic_get_irq(struct kvm *kvm, struct kvm_vcpu *vcpu, |
41 | u32 intid); | |
5dd4b924 | 42 | void vgic_put_irq(struct kvm *kvm, struct vgic_irq *irq); |
81eeb95d | 43 | bool vgic_queue_irq_unlock(struct kvm *kvm, struct vgic_irq *irq); |
2b0cda87 | 44 | void vgic_kick_vcpus(struct kvm *kvm); |
64a959d6 | 45 | |
1085fdc6 AP |
46 | int vgic_check_ioaddr(struct kvm *kvm, phys_addr_t *ioaddr, |
47 | phys_addr_t addr, phys_addr_t alignment); | |
48 | ||
140b086d MZ |
49 | void vgic_v2_process_maintenance(struct kvm_vcpu *vcpu); |
50 | void vgic_v2_fold_lr_state(struct kvm_vcpu *vcpu); | |
51 | void vgic_v2_populate_lr(struct kvm_vcpu *vcpu, struct vgic_irq *irq, int lr); | |
52 | void vgic_v2_clear_lr(struct kvm_vcpu *vcpu, int lr); | |
53 | void vgic_v2_set_underflow(struct kvm_vcpu *vcpu); | |
f94591e2 | 54 | int vgic_v2_has_attr_regs(struct kvm_device *dev, struct kvm_device_attr *attr); |
c3199f28 CD |
55 | int vgic_v2_dist_uaccess(struct kvm_vcpu *vcpu, bool is_write, |
56 | int offset, u32 *val); | |
878c569e AP |
57 | int vgic_v2_cpuif_uaccess(struct kvm_vcpu *vcpu, bool is_write, |
58 | int offset, u32 *val); | |
e4823a7a AP |
59 | void vgic_v2_set_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr); |
60 | void vgic_v2_get_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr); | |
ad275b8b | 61 | void vgic_v2_enable(struct kvm_vcpu *vcpu); |
90977732 | 62 | int vgic_v2_probe(const struct gic_kvm_info *info); |
b0442ee2 | 63 | int vgic_v2_map_resources(struct kvm *kvm); |
fb848db3 AP |
64 | int vgic_register_dist_iodev(struct kvm *kvm, gpa_t dist_base_address, |
65 | enum vgic_type); | |
140b086d | 66 | |
d97594e6 MZ |
67 | static inline void vgic_get_irq_kref(struct vgic_irq *irq) |
68 | { | |
69 | if (irq->intid < VGIC_MIN_LPI) | |
70 | return; | |
71 | ||
72 | kref_get(&irq->refcount); | |
73 | } | |
74 | ||
59529f69 MZ |
75 | #ifdef CONFIG_KVM_ARM_VGIC_V3 |
76 | void vgic_v3_process_maintenance(struct kvm_vcpu *vcpu); | |
77 | void vgic_v3_fold_lr_state(struct kvm_vcpu *vcpu); | |
78 | void vgic_v3_populate_lr(struct kvm_vcpu *vcpu, struct vgic_irq *irq, int lr); | |
79 | void vgic_v3_clear_lr(struct kvm_vcpu *vcpu, int lr); | |
80 | void vgic_v3_set_underflow(struct kvm_vcpu *vcpu); | |
e4823a7a AP |
81 | void vgic_v3_set_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr); |
82 | void vgic_v3_get_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr); | |
ad275b8b | 83 | void vgic_v3_enable(struct kvm_vcpu *vcpu); |
90977732 | 84 | int vgic_v3_probe(const struct gic_kvm_info *info); |
b0442ee2 | 85 | int vgic_v3_map_resources(struct kvm *kvm); |
ed9b8cef | 86 | int vgic_register_redist_iodevs(struct kvm *kvm, gpa_t dist_base_address); |
c7735769 | 87 | int vgic_register_its_iodevs(struct kvm *kvm); |
59c5ab40 | 88 | bool vgic_has_its(struct kvm *kvm); |
0e4e82f1 | 89 | int kvm_vgic_register_its_device(void); |
33d3bc95 | 90 | void vgic_enable_lpis(struct kvm_vcpu *vcpu); |
2891a7df | 91 | int vgic_its_inject_msi(struct kvm *kvm, struct kvm_msi *msi); |
59529f69 MZ |
92 | #else |
93 | static inline void vgic_v3_process_maintenance(struct kvm_vcpu *vcpu) | |
94 | { | |
95 | } | |
96 | ||
97 | static inline void vgic_v3_fold_lr_state(struct kvm_vcpu *vcpu) | |
98 | { | |
99 | } | |
100 | ||
101 | static inline void vgic_v3_populate_lr(struct kvm_vcpu *vcpu, | |
102 | struct vgic_irq *irq, int lr) | |
103 | { | |
104 | } | |
105 | ||
106 | static inline void vgic_v3_clear_lr(struct kvm_vcpu *vcpu, int lr) | |
107 | { | |
108 | } | |
109 | ||
110 | static inline void vgic_v3_set_underflow(struct kvm_vcpu *vcpu) | |
111 | { | |
112 | } | |
ed9b8cef | 113 | |
e4823a7a AP |
114 | static inline |
115 | void vgic_v3_set_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr) | |
116 | { | |
117 | } | |
118 | ||
119 | static inline | |
120 | void vgic_v3_get_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr) | |
121 | { | |
122 | } | |
123 | ||
ad275b8b EA |
124 | static inline void vgic_v3_enable(struct kvm_vcpu *vcpu) |
125 | { | |
126 | } | |
127 | ||
90977732 EA |
128 | static inline int vgic_v3_probe(const struct gic_kvm_info *info) |
129 | { | |
130 | return -ENODEV; | |
131 | } | |
132 | ||
b0442ee2 EA |
133 | static inline int vgic_v3_map_resources(struct kvm *kvm) |
134 | { | |
135 | return -ENODEV; | |
136 | } | |
137 | ||
ed9b8cef AP |
138 | static inline int vgic_register_redist_iodevs(struct kvm *kvm, |
139 | gpa_t dist_base_address) | |
140 | { | |
141 | return -ENODEV; | |
142 | } | |
59c5ab40 | 143 | |
c7735769 AP |
144 | static inline int vgic_register_its_iodevs(struct kvm *kvm) |
145 | { | |
146 | return -ENODEV; | |
147 | } | |
148 | ||
59c5ab40 AP |
149 | static inline bool vgic_has_its(struct kvm *kvm) |
150 | { | |
151 | return false; | |
152 | } | |
153 | ||
0e4e82f1 AP |
154 | static inline int kvm_vgic_register_its_device(void) |
155 | { | |
156 | return -ENODEV; | |
157 | } | |
158 | ||
33d3bc95 AP |
159 | static inline void vgic_enable_lpis(struct kvm_vcpu *vcpu) |
160 | { | |
161 | } | |
2891a7df AP |
162 | |
163 | static inline int vgic_its_inject_msi(struct kvm *kvm, struct kvm_msi *msi) | |
164 | { | |
165 | return -ENODEV; | |
166 | } | |
59529f69 MZ |
167 | #endif |
168 | ||
42c8870f | 169 | int kvm_register_vgic_device(unsigned long type); |
ad275b8b EA |
170 | int vgic_lazy_init(struct kvm *kvm); |
171 | int vgic_init(struct kvm *kvm); | |
c86c7721 | 172 | |
64a959d6 | 173 | #endif |