PD_MODE_V1
enum protection_domain_mode amd_iommu_pgtable = PD_MODE_V1;
amd_iommu_pgtable = PD_MODE_V1;
if (amd_iommu_pgtable != PD_MODE_V1) {
amd_iommu_pgtable = PD_MODE_V1;
domain->pd_mode == PD_MODE_V1)
domain->pd_mode = PD_MODE_V1;
if (amd_iommu_pgtable == PD_MODE_V1) {