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-rw-r--r--include/uapi/linux/iommufd.h12
1 files changed, 11 insertions, 1 deletions
diff --git a/include/uapi/linux/iommufd.h b/include/uapi/linux/iommufd.h
index 3ce5ee5f09b6..0b2bc6252e2c 100644
--- a/include/uapi/linux/iommufd.h
+++ b/include/uapi/linux/iommufd.h
@@ -444,9 +444,19 @@ struct iommu_hwpt_alloc {
#define IOMMU_HWPT_ALLOC _IO(IOMMUFD_TYPE, IOMMUFD_CMD_HWPT_ALLOC)
/**
+ * enum iommu_hw_info_vtd_flags - Flags for VT-d hw_info
+ * @IOMMU_HW_INFO_VTD_ERRATA_772415_SPR17: If set, disallow read-only mappings
+ * on a nested_parent domain.
+ * https://www.intel.com/content/www/us/en/content-details/772415/content-details.html
+ */
+enum iommu_hw_info_vtd_flags {
+ IOMMU_HW_INFO_VTD_ERRATA_772415_SPR17 = 1 << 0,
+};
+
+/**
* struct iommu_hw_info_vtd - Intel VT-d hardware information
*
- * @flags: Must be 0
+ * @flags: Combination of enum iommu_hw_info_vtd_flags
* @__reserved: Must be 0
*
* @cap_reg: Value of Intel VT-d capability register defined in VT-d spec