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 ioapic_redir_entry {
44 u64 bits;
45 struct {
46 u8 vector;
47 u8 delivery_mode:3;
48 u8 dest_mode:1;
49 u8 delivery_status:1;
50 u8 polarity:1;
51 u8 remote_irr:1;
52 u8 trig_mode:1;
53 u8 mask:1;
54 u8 reserve:7;
55 u8 reserved[4];
56 u8 dest_id;
57 } fields;
58 } redirtbl[IOAPIC_NUM_PINS];
59 struct kvm_io_device dev;
60 struct kvm *kvm;
61};
62
63#ifdef DEBUG
64#define ASSERT(x) \
65do { \
66 if (!(x)) { \
67 printk(KERN_EMERG "assertion failed %s: %d: %s\n", \
68 __FILE__, __LINE__, #x); \
69 BUG(); \
70 } \
71} while (0)
72#else
73#define ASSERT(x) do { } while (0)
74#endif
75
76static inline struct kvm_ioapic *ioapic_irqchip(struct kvm *kvm)
77{
78 return kvm->arch.vioapic;
79}
80
81#ifdef CONFIG_IA64
82static inline int irqchip_in_kernel(struct kvm *kvm)
83{
84 return 1;
85}
86#endif
87
88struct kvm_vcpu *kvm_get_lowest_prio_vcpu(struct kvm *kvm, u8 vector,
89 unsigned long bitmap);
90void kvm_ioapic_update_eoi(struct kvm *kvm, int vector);
91int kvm_ioapic_init(struct kvm *kvm);
92void kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level);
93void kvm_ioapic_reset(struct kvm_ioapic *ioapic);
94
95#endif