Palacios Public Git Repository

To checkout Palacios execute

  git clone http://v3vee.org/palacios/palacios.web/palacios.git
This will give you the master branch. You probably want the devel branch or one of the release branches. To switch to the devel branch, simply execute
  cd palacios
  git checkout --track -b devel origin/devel
The other branches are similar.


Fixes to interrupt (IRQ and VIRQ) injection logic:
[palacios.git] / palacios / include / palacios / vmm_intr.h
1 /*
2  * This file is part of the Palacios Virtual Machine Monitor developed
3  * by the V3VEE Project with funding from the United States National 
4  * Science Foundation and the Department of Energy.  
5  *
6  * The V3VEE Project is a joint project between Northwestern University
7  * and the University of New Mexico.  You can find out more at 
8  * http://www.v3vee.org
9  *
10  * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu> 
11  * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org> 
12  * All rights reserved.
13  *
14  * Author: Jack Lange <jarusl@cs.northwestern.edu>
15  *
16  * This is free software.  You are permitted to use,
17  * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
18  */
19
20 #ifndef __VMM_INTR_H_
21 #define __VMM_INTR_H_
22
23
24 #ifdef __V3VEE__
25
26 #include <palacios/vmm_types.h>
27 #include <palacios/vmm_list.h>
28 #include <palacios/vmm_lock.h>
29
30
31 typedef enum {V3_INVALID_INTR=0, V3_EXTERNAL_IRQ, V3_VIRTUAL_IRQ, V3_NMI, V3_SOFTWARE_INTR} v3_intr_type_t;
32
33 struct guest_info;
34 struct v3_vm_info;
35 struct v3_interrupt;
36
37
38 struct v3_irq {
39     uint32_t irq;
40
41     int (*ack)(struct guest_info * core, uint32_t irq, void * private_data);
42     void * private_data;
43 };
44
45
46
47 struct v3_irq_hook {
48     int (*handler)(struct v3_vm_info * vm, struct v3_interrupt * intr, void * priv_data);
49     void * priv_data;
50 };
51
52 #define MAX_IRQ 256
53
54
55 struct v3_intr_routers {
56     struct list_head router_list;
57
58     v3_lock_t irq_lock;
59
60     /* some way to get the [A]PIC intr */
61     struct v3_irq_hook * hooks[256];
62 };
63
64 struct v3_intr_core_state {
65     uint_t irq_pending;
66     uint_t irq_started;
67     uint_t irq_vector;
68
69     uint_t swintr_posted;
70     uint8_t swintr_vector;
71
72     uint8_t virq_map[MAX_IRQ / 8];
73
74     v3_lock_t irq_lock;
75
76     struct list_head controller_list;
77 };
78
79
80
81 void v3_init_intr_controllers(struct guest_info * core);
82 void v3_init_intr_routers(struct v3_vm_info * vm);
83
84 void v3_deinit_intr_controllers(struct guest_info * core);
85 void v3_deinit_intr_routers(struct v3_vm_info * vm);
86
87 int v3_raise_virq(struct guest_info * info, int irq);
88 int v3_lower_virq(struct guest_info * info, int irq);
89
90 int v3_raise_irq(struct v3_vm_info * vm, int irq);
91 int v3_lower_irq(struct v3_vm_info * vm, int irq);
92
93 /* The irq structure is passed by value to avoid confusion and 
94  * the possibility that people will dynamically allocate memory for it 
95  */
96 int v3_raise_acked_irq(struct v3_vm_info * vm, struct v3_irq irq);
97 int v3_lower_acked_irq(struct v3_vm_info * vm, struct v3_irq irq);
98
99
100 int v3_raise_swintr(struct guest_info * core, uint8_t vector);
101
102
103 struct intr_ctrl_ops {
104     int (*intr_pending)(struct guest_info * info, void * private_data);
105     int (*get_intr_number)(struct guest_info * info, void * private_data);
106     int (*begin_irq)(struct guest_info * info, void * private_data, int irq);
107 };
108
109 struct intr_router_ops {
110     int (*raise_intr)(struct v3_vm_info * vm, void * private_data, struct v3_irq * irq);
111     int (*lower_intr)(struct v3_vm_info * vm, void * private_data, struct v3_irq * irq);
112 };
113
114 void v3_clear_pending_intr(struct guest_info * core);
115
116
117 void * v3_register_intr_controller(struct guest_info * info, struct intr_ctrl_ops * ops, void * priv_data);
118 void * v3_register_intr_router(struct v3_vm_info * vm, struct intr_router_ops * ops, void * priv_data);
119
120 void v3_remove_intr_controller(struct guest_info * core, void * handle);
121 void v3_remove_intr_router(struct v3_vm_info * vm, void * handle);
122
123 v3_intr_type_t v3_intr_pending(struct guest_info * info);
124 int v3_get_intr(struct guest_info * info);
125 int v3_injecting_intr(struct guest_info * info, uint_t intr_num, v3_intr_type_t type);
126
127
128
129 /*
130   int start_irq(struct vm_intr * intr);
131   int end_irq(struct vm_intr * intr, int irq);
132 */
133
134
135
136 int v3_hook_irq(struct v3_vm_info * vm, 
137                 uint_t irq,
138                 int (*handler)(struct v3_vm_info * vm, struct v3_interrupt * intr, void * priv_data),
139                 void  * priv_data);
140
141 int v3_hook_passthrough_irq(struct v3_vm_info * vm, uint_t irq);
142
143
144
145 #endif // !__V3VEE__
146
147
148
149 #endif