CONTROL_PASSPW_EN 2211 drivers/iommu/amd_iommu_init.c 		iommu_feature_enable(iommu, CONTROL_PASSPW_EN) :
CONTROL_PASSPW_EN 2212 drivers/iommu/amd_iommu_init.c 		iommu_feature_disable(iommu, CONTROL_PASSPW_EN);