ne_get_cpu_from_cpu_pool(9)

💅 ne_get_cpu_from_cpu_pool(9) — the Kernel API Manual glow-up 🎀

okay so bestie, welcome to the Kernel API Manual page for ne_get_cpu_from_cpu_pool — yes the name is a mouthful, yes it's iconic, no we are not shortening it 💖

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✨ NAME ✨

ne_get_cpu_from_cpu_pool — grab a CPU out of the NE CPU pool. and like… from where exactly? two options, queen: either it's one of the remaining sibling(s) of a CPU core, or it's the first sibling of a new CPU core. that's the whole vibe check 🦋

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🌸 SYNOPSIS 🌸

int ne_get_cpu_from_cpu_pool (struct ne_enclave *ne_enclave , u32
*vcpu_id );

literally that's it. two args. slay ✨

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🎀 ARGUMENTS 🎀

• ne_enclave — the private data associated with the current enclave. it's giving "personal info, do not share" 🫶
• vcpu_id — the vCPU that we're getting from the NE CPU pool. main character vCPU fr 💅

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🦋 CONTEXT 🦋

Process context, bestie. and listen — this function is called with the ne_enclave mutex held. so like, hold the lock, don't be weird about it 🙈

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⭐ RETURN ⭐

• 0 on success 🎉 (we love a zero)
• Negative return value on failure 😭 (we do NOT love a negative, but it happens)

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👑 SEE ALSO 👑

the whole friend group, no cap — every single one of these:

• Kernel file ./drivers/virt/nitro_enclaves/ne_misc_dev.c Enclave lifetime management driver for Nitro Enclaves (NE).(9)
• NE_CPUS_SIZE(9)
• NE_EIF_LOAD_OFFSET(9)
• NE_MIN_ENCLAVE_MEM_SIZE(9)
• NE_MIN_MEM_REGION_SIZE(9)
• NE_PARENT_VM_CID(9)
• struct ne_cpu_pool(9)
• struct ne_phys_contig_mem_regions(9)
• ne_check_enclaves_created(9)
• ne_setup_cpu_pool(9)
• ne_teardown_cpu_pool(9)
• ne_set_kernel_param(9)
• ne_donated_cpu(9)
• ne_get_unused_core_from_cpu_pool(9)
• ne_set_enclave_threads_per_core(9)
• ne_get_vcpu_core_from_cpu_pool(9)
• ne_check_cpu_in_cpu_pool(9)
• ne_add_vcpu_ioctl(9)
• ne_sanity_check_user_mem_region(9)
• ne_sanity_check_user_mem_region_page(9)
• ne_sanity_check_phys_mem_region(9)
• ne_merge_phys_contig_memory_regions(9)
• ne_set_user_memory_region_ioctl(9)
• ne_start_enclave_ioctl(9)
• ne_enclave_ioctl(9)
• ne_enclave_remove_all_mem_region_entries(9)
• ne_enclave_remove_all_vcpu_id_entries(9)
• ne_pci_dev_remove_enclave_entry(9)
• ne_enclave_release(9)
• ne_enclave_poll(9)
• ne_create_vm_ioctl(9)
• ne_ioctl(9)

like, read them. all of them. iykyk 🔥

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and that's the page, bestie 🧚💜 this lil masterpiece lives under ./drivers/virt/nitro_enclaves and it's stamped October 2026 — frame it, hang it up, periodt 💅🌸