ne_add_vcpu_ioctl(9)

💅 ne_add_vcpu_ioctl(9) 💅

okay so this is the Kernel API Manual page for ne_add_vcpu_ioctl(9), and bestie it is literally about adding a vCPU to the slot associated with the current enclave. main character kernel energy, no cap ✨

✨ NAME ✨

ne_add_vcpu_ioctl — Add a vCPU to the slot associated with the current enclave. 💖

🦋 SYNOPSIS 🦋

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

🌸 ARGUMENTS 🌸

• ne_enclave — Private data associated with the current enclave. 🫶
• vcpu_id — ID of the CPU to be associated with the given slot, apic id on x86. 🧠

💅 CONTEXT 💅

Process context. This function is called with the ne_enclave mutex held. So when you roll up, that mutex is already in the mix — noted and respected, periodt. 😌

heads up bestie: process context, and the ne_enclave mutex is held when this runs. that's the whole context vibe check. 💀

🎀 RETURN 🎀

• 0 — success. slay! ✅
• Negative return value — failure. sad girl hours, but at least it's documented 😭

👑 SEE ALSO 👑

• 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_cpu_from_cpu_pool(9)
• ne_get_vcpu_core_from_cpu_pool(9)
• ne_check_cpu_in_cpu_pool(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)

mwah 💖 this page's source/version is ./drivers/virt/nitro_enclaves, and it's dated October 2026 — see you in the group chat, bestie! 🧚💜