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linux
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ioapic.h
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Michael S. Tsirkin
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Marcelo Tosatti
KVM: fix race with level interrupts
Jul 20, 2012
1a577b7
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Jul 20, 2012
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86 lines (73 loc) · 2.39 KB
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linux
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ioapic.h
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#ifndef __KVM_IO_APIC_H #define __KVM_IO_APIC_H #include <linux/kvm_host.h> #include "iodev.h" struct kvm; struct kvm_vcpu; #define IOAPIC_NUM_PINS KVM_IOAPIC_NUM_PINS #define IOAPIC_VERSION_ID 0x11 /* IOAPIC version */ #define IOAPIC_EDGE_TRIG 0 #define IOAPIC_LEVEL_TRIG 1 #define IOAPIC_DEFAULT_BASE_ADDRESS 0xfec00000 #define IOAPIC_MEM_LENGTH 0x100 /* Direct registers. */ #define IOAPIC_REG_SELECT 0x00 #define IOAPIC_REG_WINDOW 0x10 #define IOAPIC_REG_EOI 0x40 /* IA64 IOSAPIC only */ /* Indirect registers. */ #define IOAPIC_REG_APIC_ID 0x00 /* x86 IOAPIC only */ #define IOAPIC_REG_VERSION 0x01 #define IOAPIC_REG_ARB_ID 0x02 /* x86 IOAPIC only */ /*ioapic delivery mode*/ #define IOAPIC_FIXED 0x0 #define IOAPIC_LOWEST_PRIORITY 0x1 #define IOAPIC_PMI 0x2 #define IOAPIC_NMI 0x4 #define IOAPIC_INIT 0x5 #define IOAPIC_EXTINT 0x7 struct kvm_ioapic { u64 base_address; u32 ioregsel; u32 id; u32 irr; u32 pad; union kvm_ioapic_redirect_entry redirtbl[IOAPIC_NUM_PINS]; unsigned long irq_states[IOAPIC_NUM_PINS]; struct kvm_io_device dev; struct kvm *kvm; void (*ack_notifier)(void *opaque, int irq); spinlock_t lock; DECLARE_BITMAP(handled_vectors, 256); }; #ifdef DEBUG #define ASSERT(x) \ do { \ if (!(x)) { \ printk(KERN_EMERG "assertion failed %s: %d: %s\n", \ __FILE__, __LINE__, #x); \ BUG(); \ } \ } while (0) #else #define ASSERT(x) do { } while (0) #endif static inline struct kvm_ioapic *ioapic_irqchip(struct kvm *kvm) { return kvm->arch.vioapic; } int kvm_apic_match_dest(struct kvm_vcpu *vcpu, struct kvm_lapic *source, int short_hand, int dest, int dest_mode); int kvm_apic_compare_prio(struct kvm_vcpu *vcpu1, struct kvm_vcpu *vcpu2); void kvm_ioapic_update_eoi(struct kvm *kvm, int vector, int trigger_mode); bool kvm_ioapic_handles_vector(struct kvm *kvm, int vector); int kvm_ioapic_init(struct kvm *kvm); void kvm_ioapic_destroy(struct kvm *kvm); int kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int irq_source_id, int level); void kvm_ioapic_clear_all(struct kvm_ioapic *ioapic, int irq_source_id); void kvm_ioapic_reset(struct kvm_ioapic *ioapic); int kvm_irq_delivery_to_apic(struct kvm *kvm, struct kvm_lapic *src, struct kvm_lapic_irq *irq); int kvm_get_ioapic(struct kvm *kvm, struct kvm_ioapic_state *state); int kvm_set_ioapic(struct kvm *kvm, struct kvm_ioapic_state *state); #endif
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