dev_iotlb 128 drivers/iommu/intel-svm.c if (sdev->dev_iotlb) { dev_iotlb 294 drivers/iommu/intel-svm.c sdev->dev_iotlb = 1; dev_iotlb 676 include/linux/intel-iommu.h u16 dev_iotlb:1;