tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef __KVM_IO_APIC_H
2#define __KVM_IO_APIC_H
3
4#include <linux/kvm_host.h>
5
6#include "iodev.h"
7
8struct kvm;
9struct kvm_vcpu;
10
11#define IOAPIC_NUM_PINS KVM_IOAPIC_NUM_PINS
12#define IOAPIC_VERSION_ID 0x11 /* IOAPIC version */
13#define IOAPIC_EDGE_TRIG 0
14#define IOAPIC_LEVEL_TRIG 1
15
16#define IOAPIC_DEFAULT_BASE_ADDRESS 0xfec00000
17#define IOAPIC_MEM_LENGTH 0x100
18
19/* Direct registers. */
20#define IOAPIC_REG_SELECT 0x00
21#define IOAPIC_REG_WINDOW 0x10
22#define IOAPIC_REG_EOI 0x40 /* IA64 IOSAPIC only */
23
24/* Indirect registers. */
25#define IOAPIC_REG_APIC_ID 0x00 /* x86 IOAPIC only */
26#define IOAPIC_REG_VERSION 0x01
27#define IOAPIC_REG_ARB_ID 0x02 /* x86 IOAPIC only */
28
29/*ioapic delivery mode*/
30#define IOAPIC_FIXED 0x0
31#define IOAPIC_LOWEST_PRIORITY 0x1
32#define IOAPIC_PMI 0x2
33#define IOAPIC_NMI 0x4
34#define IOAPIC_INIT 0x5
35#define IOAPIC_EXTINT 0x7
36
37struct kvm_ioapic {
38 u64 base_address;
39 u32 ioregsel;
40 u32 id;
41 u32 irr;
42 u32 pad;
43 union kvm_ioapic_redirect_entry redirtbl[IOAPIC_NUM_PINS];
44 unsigned long irq_states[IOAPIC_NUM_PINS];
45 struct kvm_io_device dev;
46 struct kvm *kvm;
47 void (*ack_notifier)(void *opaque, int irq);
48 spinlock_t lock;
49 DECLARE_BITMAP(handled_vectors, 256);
50};
51
52#ifdef DEBUG
53#define ASSERT(x) \
54do { \
55 if (!(x)) { \
56 printk(KERN_EMERG "assertion failed %s: %d: %s\n", \
57 __FILE__, __LINE__, #x); \
58 BUG(); \
59 } \
60} while (0)
61#else
62#define ASSERT(x) do { } while (0)
63#endif
64
65static inline struct kvm_ioapic *ioapic_irqchip(struct kvm *kvm)
66{
67 return kvm->arch.vioapic;
68}
69
70int kvm_apic_match_dest(struct kvm_vcpu *vcpu, struct kvm_lapic *source,
71 int short_hand, int dest, int dest_mode);
72int kvm_apic_compare_prio(struct kvm_vcpu *vcpu1, struct kvm_vcpu *vcpu2);
73void kvm_ioapic_update_eoi(struct kvm *kvm, int vector, int trigger_mode);
74bool kvm_ioapic_handles_vector(struct kvm *kvm, int vector);
75int kvm_ioapic_init(struct kvm *kvm);
76void kvm_ioapic_destroy(struct kvm *kvm);
77int kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level);
78void kvm_ioapic_reset(struct kvm_ioapic *ioapic);
79int kvm_irq_delivery_to_apic(struct kvm *kvm, struct kvm_lapic *src,
80 struct kvm_lapic_irq *irq);
81int kvm_get_ioapic(struct kvm *kvm, struct kvm_ioapic_state *state);
82int kvm_set_ioapic(struct kvm *kvm, struct kvm_ioapic_state *state);
83
84#endif