规范解读
接口
=== x86, x86_64 Register Locations ===
Selector Register IOport: 0x510
Data Register IOport: 0x511
DMA Address IOport: 0x514
=== ARM Register Locations ===
Selector Register address: Base + 8 (2 bytes)
Data Register address: Base + 0 (8 bytes)
DMA Address address: Base + 16 (8 bytes)数据结构
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