1 #ifndef __KVM_IO_APIC_H
2 #define __KVM_IO_APIC_H
4 #include <linux/kvm_host.h>
11 #define IOAPIC_NUM_PINS KVM_IOAPIC_NUM_PINS
12 #define MAX_NR_RESERVED_IOAPIC_PINS KVM_MAX_IRQ_ROUTES
13 #define IOAPIC_VERSION_ID 0x11 /* IOAPIC version */
14 #define IOAPIC_EDGE_TRIG 0
15 #define IOAPIC_LEVEL_TRIG 1
17 #define IOAPIC_DEFAULT_BASE_ADDRESS 0xfec00000
18 #define IOAPIC_MEM_LENGTH 0x100
20 /* Direct registers. */
21 #define IOAPIC_REG_SELECT 0x00
22 #define IOAPIC_REG_WINDOW 0x10
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 */
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
44 /* vcpu bitmap where IRQ has been sent */
45 DECLARE_BITMAP(map, KVM_MAX_VCPU_ID);
48 * Vector sent to a given vcpu, only valid when
49 * the vcpu's bit in map is set
51 u8 vectors[KVM_MAX_VCPU_ID];
57 struct dest_map dest_map;
60 union kvm_ioapic_redirect_entry {
83 union kvm_ioapic_redirect_entry redirtbl[IOAPIC_NUM_PINS];
84 unsigned long irq_states[IOAPIC_NUM_PINS];
85 struct kvm_io_device dev;
87 void (*ack_notifier)(void *opaque, int irq);
89 struct rtc_status rtc_status;
90 struct delayed_work eoi_inject;
91 u32 irq_eoi[IOAPIC_NUM_PINS];
99 printk(KERN_EMERG "assertion failed %s: %d: %s\n", \
100 __FILE__, __LINE__, #x); \
105 #define ASSERT(x) do { } while (0)
108 static inline struct kvm_ioapic *ioapic_irqchip(struct kvm *kvm)
110 return kvm->arch.vioapic;
113 static inline int ioapic_in_kernel(struct kvm *kvm)
117 ret = (ioapic_irqchip(kvm) != NULL);
121 void kvm_rtc_eoi_tracking_restore_one(struct kvm_vcpu *vcpu);
122 bool kvm_apic_match_dest(struct kvm_vcpu *vcpu, struct kvm_lapic *source,
123 int short_hand, unsigned int dest, int dest_mode);
124 int kvm_apic_compare_prio(struct kvm_vcpu *vcpu1, struct kvm_vcpu *vcpu2);
125 void kvm_ioapic_update_eoi(struct kvm_vcpu *vcpu, int vector,
127 int kvm_ioapic_init(struct kvm *kvm);
128 void kvm_ioapic_destroy(struct kvm *kvm);
129 int kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int irq_source_id,
130 int level, bool line_status);
131 void kvm_ioapic_clear_all(struct kvm_ioapic *ioapic, int irq_source_id);
132 int kvm_irq_delivery_to_apic(struct kvm *kvm, struct kvm_lapic *src,
133 struct kvm_lapic_irq *irq,
134 struct dest_map *dest_map);
135 int kvm_get_ioapic(struct kvm *kvm, struct kvm_ioapic_state *state);
136 int kvm_set_ioapic(struct kvm *kvm, struct kvm_ioapic_state *state);
137 void kvm_ioapic_scan_entry(struct kvm_vcpu *vcpu,
138 ulong *ioapic_handled_vectors);
139 void kvm_scan_ioapic_routes(struct kvm_vcpu *vcpu,
140 ulong *ioapic_handled_vectors);