ne_set_user_mem_region(9)

💅 ne_set_user_mem_region(9) — a Kernel API Manual moment 🎀

okay so this one lives in the Kernel API Manual and it's genuinely such a slay little function, bestie. buckle up 💖

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✨ NAME ✨

ne_set_user_mem_region — bestie, this is the one that sets a user space memory region for the given enclave. that's the whole vibe. no cap. 🦋

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🌸 SYNOPSIS 🌸

int ne_set_user_mem_region (int enclave_fd , struct ne_user_mem_region
ne_user_mem_region );

like, look at her go 😭 signature stays exactly like that, don't @ me.

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🎀 ARGUMENTS 🎀

• enclave_fd — the file descriptor that's associated with the enclave. it's giving "your ticket to the enclave party" 🎟️✨
• ne_user_mem_region — the user space memory region that's gonna be set for the enclave. literally the whole point 🫶

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💜 CONTEXT 💜

Process context. that's it, that's the vibe check. 💅

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🌈 RETURN 🌈

• 0 on success 🎉 slay, she ate, no notes.
• Negative return value on failure 😭💀 so like… if you see a negative number, something went wrong, fr fr.

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🦋 SEE ALSO 🦋

okay this list is LONG and honestly iconic, so let's get into it 👑

• Kernel file ./samples/nitro_enclaves/ne_ioctl_sample.c — Sample flow of using the ioctl interface provided by the Nitro Enclaves (NE)(9)
• NE_DEV_NAME(9)
• NE_POLL_WAIT_TIME(9)
• NE_POLL_WAIT_TIME_MS(9)
• NE_SLEEP_TIME(9)
• NE_DEFAULT_NR_VCPUS(9)
• NE_MIN_MEM_REGION_SIZE(9)
• NE_DEFAULT_NR_MEM_REGIONS(9)
• NE_IMAGE_LOAD_HEARTBEAT_CID(9)
• NE_IMAGE_LOAD_HEARTBEAT_PORT(9)
• NE_IMAGE_LOAD_HEARTBEAT_VALUE(9)
• struct ne_user_mem_region(9)
• ne_create_vm(9)
• ne_poll_enclave_fd(9)
• ne_alloc_user_mem_region(9)
• ne_load_enclave_image(9)
• ne_free_mem_regions(9)
• ne_add_vcpu(9)
• ne_start_enclave(9)
• ne_start_enclave_check_booted(9)

like, she knows everyone at the function party 💅✨

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and that's the page, bestie 🫶 this lil beauty comes from ./samples/nitro_enclaves, dated October 2026, and her name is ne_set_user_mem_region(9) — remember it, iykyk 💖🎀🌸