__iommu_cop...m_user_array(9)

💅 __iommu_cop...m_user_array(9) — Kernel API Manual, bestie edition ✨

okay so we are in the Kernel API Manual, and this page is all about __iommu_copy_struct_from_user_array. She is a function, she is iconic, and she is here to copy iommu driver specific user space data from an iommu_user_data_array. Periodt. 🫶

🌸 NAME 🌸

__iommu_copy_struct_from_user_array — copy iommu driver specific user space data from an iommu_user_data_array. That is the whole name, no cap. 💅

✨ SYNOPSIS ✨

int __iommu_copy_struct_from_user_array (void *dst_data , const struct
       iommu_user_data_array *src_array , unsigned int data_type , unsigned int
       index , size_t data_len , size_t min_len );

🎀 ARGUMENTS 🎀

• dst_data — pointer to an iommu driver specific user data that is defined in include/uapi/linux/iommufd.h. 🫶
• src_array — pointer to a struct iommu_user_data_array for a user space array. ✨
• data_type — the data type of dst_data. It must match src_array.type. 💖
• index — index to the location in the array to copy user data from. 👑
• data_len — length of current user data structure, i.e. sizeof(struct _dst). 🍓
• min_len — initial length of user data structure for backward compatibility. This should be offsetofend using the last member in the user data struct that was initially added to include/uapi/linux/iommufd.h. 🌈

🦋 SEE ALSO 🦋

Kernel file ./include/linux/iommu.h is the main character here, and the rest of the reference friend group is:

• struct iommu_fault_page_request(9)
• struct iommu_fault(9)
• enum iommu_page_response_code(9)
• struct iommu_page_response(9)
• struct iopf_queue(9)
• struct iommu_resv_region(9)
• struct iommu_iotlb_gather(9)
• struct iommu_dirty_bitmap(9)
• struct iommu_dirty_ops(9)
• struct iommu_user_data(9)
• struct iommu_user_data_array(9)
• __iommu_copy_struct_from_user(9)
• iommu_copy_struct_from_user(9)
• iommu_copy_struct_from_user_array(9)
• iommu_copy_struct_from_full_user_array(9)
• __iommu_copy_struct_to_user(9)
• iommu_copy_struct_to_user(9)
• struct iommu_ops(9)
• struct iommu_domain_ops(9)
• struct iommu_device(9)
• struct iommu_fault_param(9)
• struct dev_iommu(9)
• iommu_iotlb_gather_is_disjoint(9)
• iommu_iotlb_gather_add_range(9)
• iommu_iotlb_gather_add_page(9)
• struct iommu_fwspec(9)
• struct iommu_sva(9)
• iommu_map_sgtable(9)

source/version: ./include/linux · date: October 2026 · footer: __iommu_cop...m_user_array(9) — that is the whole footer vibe, bestie. 💖✨