STRUCT NE_USER_MEMORY_REGION(9)

💅 struct ne_user_memory_region — like, the whole manual, bestie 🎀

okay so this is a page straight out of the Kernel API Manual, and it's all about struct ne_user_memory_region — literally the memory region you hand over to be set for an enclave (that's in, btw). yes, in. it's giving "here's my memory, please take it" energy. 🫶

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✨ NAME ✨

struct ne_user_memory_region — the memory region to be set for an enclave (in). 🌸

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🦋 SYNOPSIS 🦋

look at her. she's serving struct:

struct ne_user_memory_region {
    __u64 flags;
    __u64 memory_size;
    __u64 userspace_addr;
 };

three members, zero drama. iconic. 👑

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💖 Members 💖

• flags — the flags that determine the usage for the memory region (in). like, what is this region even for, you know? 🎀
• memory_size — the size, in bytes, of the memory region to be set for an enclave (in). bytes, not vibes. measure her. 📏
• userspace_addr — the start address of the userspace allocated memory of the memory region to set for an enclave (in). where does it all begin? right here, bestie. 🗺️

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🌈 SEE ALSO 🌈

adjacent lore, all of it, no skipping (iykyk):

• the kernel file ./include/uapi/linux/nitro_enclaves.h
• Nitro Enclaves (NE) Kernel Driver Interface(9)
• NE_CREATE_VM(9)
• NE_ADD_VCPU(9)
• NE_GET_IMAGE_LOAD_INFO(9)
• NE_SET_USER_MEMORY_REGION(9)
• NE_START_ENCLAVE(9)
• NE specific error codes(9)
• NE_ERR_VCPU_ALREADY_USED(9)
• NE_ERR_VCPU_NOT_IN_CPU_POOL(9)
• NE_ERR_VCPU_INVALID_CPU_CORE(9)
• NE_ERR_INVALID_MEM_REGION_SIZE(9)
• NE_ERR_INVALID_MEM_REGION_ADDR(9)
• NE_ERR_UNALIGNED_MEM_REGION_ADDR(9)
• NE_ERR_MEM_REGION_ALREADY_USED(9)
• NE_ERR_MEM_NOT_HUGE_PAGE(9)
• NE_ERR_MEM_DIFFERENT_NUMA_NODE(9)
• NE_ERR_MEM_MAX_REGIONS(9)
• NE_ERR_NO_MEM_REGIONS_ADDED(9)
• NE_ERR_NO_VCPUS_ADDED(9)
• NE_ERR_ENCLAVE_MEM_MIN_SIZE(9)
• NE_ERR_FULL_CORES_NOT_USED(9)
• NE_ERR_NOT_IN_INIT_STATE(9)
• NE_ERR_INVALID_VCPU(9)
• NE_ERR_NO_CPUS_AVAIL_IN_POOL(9)
• NE_ERR_INVALID_PAGE_SIZE(9)
• NE_ERR_INVALID_FLAG_VALUE(9)
• NE_ERR_INVALID_ENCLAVE_CID(9)
• Image load info flags(9)
• NE_EIF_IMAGE(9)
• struct ne_image_load_info(9)
• User memory region flags(9)
• NE_DEFAULT_MEMORY_REGION(9)
• Enclave start info flags(9)
• NE_ENCLAVE_PRODUCTION_MODE(9)
• NE_ENCLAVE_DEBUG_MODE(9)
• struct ne_enclave_start_info(9)

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lowkey a whole reading list. bestie go click through them, fr fr. 📚✨

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that's the whole page, no cap. source lives at ./include/uapi/linux, dated October 2026 — so like, from the future?? 💀 anyway mwah, go set some memory regions, love u, bye! 💜🎀🦋