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.
6 * The V3VEE Project is a joint project between Northwestern University
7 * and the University of New Mexico. You can find out more at
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.
14 * Author: Jack Lange <jarusl@cs.northwestern.edu>
16 * This is free software. You are permitted to use,
17 * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
26 #include <palacios/vmm_intr.h>
27 #include <palacios/vmm_types.h>
30 #define DE_EXCEPTION 0x00
31 #define DB_EXCEPTION 0x01
32 #define NMI_EXCEPTION 0x02
33 #define BP_EXCEPTION 0x03
34 #define OF_EXCEPTION 0x04
35 #define BR_EXCEPTION 0x05
36 #define UD_EXCEPTION 0x06
37 #define NM_EXCEPTION 0x07
38 #define DF_EXCEPTION 0x08
39 #define TS_EXCEPTION 0x0a
40 #define NP_EXCEPTION 0x0b
41 #define SS_EXCEPTION 0x0c
42 #define GPF_EXCEPTION 0x0d
43 #define PF_EXCEPTION 0x0e
44 #define MF_EXCEPTION 0x10
45 #define AC_EXCEPTION 0x11
46 #define MC_EXCEPTION 0x12
47 #define XF_EXCEPTION 0x13
48 #define SX_EXCEPTION 0x1e
51 typedef enum {INVALID_INTR, EXTERNAL_IRQ, NMI, EXCEPTION, SOFTWARE_INTR, VIRTUAL_INTR} intr_type_t;
56 /* We need a way to allow the APIC/PIC to decide when they are supposed to receive interrupts...
57 * Maybe a notification call when they have been turned on, to deliver irqs to them...
58 * We can rehook the guest raise_irq op, to the appropriate controller
63 int (*handler)(struct guest_info * info, struct v3_interrupt * intr, void * priv_data);
68 struct v3_intr_state {
70 /* We need to rework the exception state, to handle stacking */
73 uint_t excp_error_code_valid : 1;
74 uint_t excp_error_code;
76 struct intr_ctrl_ops * controller;
77 void * controller_state;
79 /* some way to get the [A]PIC intr */
81 struct v3_irq_hook * hooks[256];
87 void v3_init_interrupt_state(struct guest_info * info);
90 int v3_raise_irq(struct guest_info * info, int irq);
91 int v3_lower_irq(struct guest_info * info, int irq);
95 struct intr_ctrl_ops {
96 int (*intr_pending)(void * private_data);
97 int (*get_intr_number)(void * private_data);
98 int (*raise_intr)(void * private_data, int irq);
99 int (*lower_intr)(void * private_data, int irq);
100 int (*begin_irq)(void * private_data, int irq);
106 void v3_set_intr_controller(struct guest_info * info, struct intr_ctrl_ops * ops, void * state);
108 int v3_raise_exception(struct guest_info * info, uint_t excp);
109 int v3_raise_exception_with_error(struct guest_info * info, uint_t excp, uint_t error_code);
111 int v3_intr_pending(struct guest_info * info);
112 uint_t v3_get_intr_number(struct guest_info * info);
113 intr_type_t v3_get_intr_type(struct guest_info * info);
115 int v3_injecting_intr(struct guest_info * info, uint_t intr_num, intr_type_t type);
118 int start_irq(struct vm_intr * intr);
119 int end_irq(struct vm_intr * intr, int irq);
124 int v3_hook_irq(struct guest_info * info,
126 int (*handler)(struct guest_info * info, struct v3_interrupt * intr, void * priv_data),
129 int v3_hook_passthrough_irq(struct guest_info *info, uint_t irq);