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//0x4 bytes (sizeof)
enum _EXT_IOMMU_ADDRESS_TRANSLATION_POLICY
{
    ExtIommuAddressTranslationPolicyDisable = 0,
    ExtIommuAddressTranslationPolicyEnableDefaultBypass = 1,
    ExtIommuAddressTranslationPolicyEnableDefaultBlock = 2,
    ExtIommuAddressTranslationPolicyEnableDefaultTranslate = 3
};