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I/O APIC

include/acpi/ioapic.h

Section titled “include/acpi/ioapic.h”

struct ioapic_info

Section titled “struct ioapic_info”
struct ioapic_info {
    uint8_t   id;
    uint32_t  gsi_base;
    uint32_t  *mmio_base;
};

union ioapic_redirection_entry

Section titled “union ioapic_redirection_entry”
union ioapic_redirection_entry {
    uint64_t  raw;
    struct {
        uint8_t   vector;
        uint8_t   delivery_mode;
        uint8_t   dest_mode;
        uint8_t   delivery_status;
        uint8_t   polarity;
        uint8_t   remote_irr;
        uint8_t   trigger_mode;
        uint8_t   mask;
        uint16_t  reserved;
        uint8_t   reserved2;
        uint8_t   reserved3;
        uint8_t   reserved4;
        uint8_t   dest_apic_id;
    };
};