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The IOAPIC polarity for an interrupt pin is 0=High and 1=Low based on how the tool eventually makes the kernel system call, which casts the enum value to a word and then passes it to the kernel. The kernel then ors in the value passed at the corresponding bit position in the ioredtbl_state. Signed-off-by: Callum <c.berry@student.unsw.edu.au>
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The IOAPIC polarity for an interrupt pin is 0=High and 1=Low, based on how the tool eventually makes the kernel system call, which casts the enum value to a word and then passes it to the kernel. The kernel then ors in the value passed at the corresponding bit position in the ioredtbl_state.