diff options
Diffstat (limited to 'include/uapi/linux')
| -rw-r--r-- | include/uapi/linux/iommufd.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/uapi/linux/iommufd.h b/include/uapi/linux/iommufd.h index 1dafbc552d37..e998dfbd6960 100644 --- a/include/uapi/linux/iommufd.h +++ b/include/uapi/linux/iommufd.h @@ -695,11 +695,15 @@ enum iommu_hw_info_type { * @IOMMU_HW_CAP_PCI_PASID_PRIV: Privileged Mode Supported, user ignores it * when the struct * iommu_hw_info::out_max_pasid_log2 is zero. + * @IOMMU_HW_CAP_PCI_ATS_NOT_SUPPORTED: ATS is not supported or cannot be used + * on this device (absence implies ATS + * may be enabled) */ enum iommufd_hw_capabilities { IOMMU_HW_CAP_DIRTY_TRACKING = 1 << 0, IOMMU_HW_CAP_PCI_PASID_EXEC = 1 << 1, IOMMU_HW_CAP_PCI_PASID_PRIV = 1 << 2, + IOMMU_HW_CAP_PCI_ATS_NOT_SUPPORTED = 1 << 3, }; /** @@ -1052,6 +1056,11 @@ struct iommu_fault_alloc { enum iommu_viommu_type { IOMMU_VIOMMU_TYPE_DEFAULT = 0, IOMMU_VIOMMU_TYPE_ARM_SMMUV3 = 1, + /* + * TEGRA241_CMDQV requirements (otherwise, VCMDQs will not work) + * - Kernel will allocate a VINTF (HYP_OWN=0) to back this VIOMMU. So, + * VMM must wire the HYP_OWN bit to 0 in guest VINTF_CONFIG register + */ IOMMU_VIOMMU_TYPE_TEGRA241_CMDQV = 2, }; |