1 /* Northwestern University */
2 /* (c) 2008, Jack Lange <jarusl@cs.northwestern.edu> */
10 #include <palacios/vmm_intr.h>
11 #include <palacios/vmm_types.h>
13 #define DE_EXCEPTION 0x00
14 #define DB_EXCEPTION 0x01
15 #define NMI_EXCEPTION 0x02
16 #define BP_EXCEPTION 0x03
17 #define OF_EXCEPTION 0x04
18 #define BR_EXCEPTION 0x05
19 #define UD_EXCEPTION 0x06
20 #define NM_EXCEPTION 0x07
21 #define DF_EXCEPTION 0x08
22 #define TS_EXCEPTION 0x0a
23 #define NP_EXCEPTION 0x0b
24 #define SS_EXCEPTION 0x0c
25 #define GPF_EXCEPTION 0x0d
26 #define PF_EXCEPTION 0x0e
27 #define MF_EXCEPTION 0x10
28 #define AC_EXCEPTION 0x11
29 #define MC_EXCEPTION 0x12
30 #define XF_EXCEPTION 0x13
31 #define SX_EXCEPTION 0x1e
34 typedef enum {INVALID_INTR, EXTERNAL_IRQ, NMI, EXCEPTION, SOFTWARE_INTR, VIRTUAL_INTR} intr_type_t;
38 /* We need a way to allow the APIC/PIC to decide when they are supposed to receive interrupts...
39 * Maybe a notification call when they have been turned on, to deliver irqs to them...
40 * We can rehook the guest raise_irq op, to the appropriate controller
46 /* We need to rework the exception state, to handle stacking */
49 uint_t excp_error_code_valid : 1;
50 uint_t excp_error_code;
52 struct intr_ctrl_ops * controller;
53 void * controller_state;
55 /* some way to get the [A]PIC intr */
61 void init_interrupt_state(struct guest_info * info);
64 int v3_raise_irq(struct guest_info * info, int irq);
67 int v3_lower_irq(struct guest_info * info, int irq);
72 struct intr_ctrl_ops {
73 int (*intr_pending)(void * private_data);
74 int (*get_intr_number)(void * private_data);
75 int (*raise_intr)(void * private_data, int irq);
76 int (*lower_intr)(void * private_data, int irq);
77 int (*begin_irq)(void * private_data, int irq);
83 void set_intr_controller(struct guest_info * info, struct intr_ctrl_ops * ops, void * state);
85 int v3_raise_exception(struct guest_info * info, uint_t excp);
86 int v3_raise_exception_with_error(struct guest_info * info, uint_t excp, uint_t error_code);
88 int intr_pending(struct guest_info * info);
89 uint_t get_intr_number(struct guest_info * info);
90 intr_type_t get_intr_type(struct guest_info * info);
92 int injecting_intr(struct guest_info * info, uint_t intr_num, intr_type_t type);
95 int start_irq(struct vm_intr * intr);
96 int end_irq(struct vm_intr * intr, int irq);
108 struct vmm_intr_state;
110 int v3_hook_irq(uint_t irq,
111 void (*handler)(struct vmm_intr_state *state),
114 int v3_hook_irq_for_guest_injection(struct guest_info *info, int irq);