ne_sanity_ch..._region_page(9)

🌸 NAME 🌸

okay so this is from the Kernel API Manual, and the main character is ne_sanity_check_user_mem_region_page — it sanity checks a page from the user space memory region received during the set user memory region ioctl call. periodt 💅

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✨ SYNOPSIS ✨

int ne_sanity_check_user_mem_region_page (struct ne_enclave *ne_enclave
, struct page *mem_region_page );

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🫶 ARGUMENTS 🫶

• ne_enclave — private data associated with the current enclave. literally the enclave's little info clutch 💖
• mem_region_page — page from the user space memory region to be sanity checked. this is the page getting the vibe check 🦋

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🎀 CONTEXT 🎀

Process context. This function is called with the ne_enclave mutex held. so yeah, bestie, the mutex is already locked when this runs — no cap 🔒✨

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💅 RETURN 💅

• 0 on success. slay ✅
• Negative return value on failure. if it's negative, it's giving fail 😭

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🔥 SEE ALSO 🔥

the whole icon squad is here, fr fr:

• 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_add_vcpu_ioctl(9)
• ne_sanity_check_user_mem_region(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)

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mwah 💖 this page is filed under ./drivers/virt/nitro_enclaves, and the version date is October 2026. bye bestie 🫶✨