sgx_encl_eaug_page(9)

💅 sgx_encl_eaug_page(9) — Kernel API Manual ✨

okay so welcome to the Kernel API Manual entry for sgx_encl_eaug_page(9), and yes bestie, we’re getting into it 🫶

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🌸 NAME 🌸

sgx_encl_eaug_page — Dynamically add page to initialized enclave 💖

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✨ SYNOPSIS ✨

vm_fault_t sgx_encl_eaug_page (struct vm_area_struct *vma , struct
       sgx_encl *encl , unsigned long addr );

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🎀 ARGUMENTS 🎀

• vma — the VMA obtained from fault info from where the page is accessed, periodt 🦋
• encl — the enclave accessing the page, main character energy fr fr 👑
• addr — the address that triggered the page fault, iconic 💅

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🔥 DESCRIPTION 🔥

When an initialized enclave accesses a page with no backing EPC page on a SGX2 system, then the EPC can be added dynamically via the SGX2 ENCLS[EAUG] instruction. no cap, that’s the vibe ✨

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💜 RETURN 💜

Appropriate vm_fault_t: VM_FAULT_NOPAGE when the PTE was installed successfully, or VM_FAULT_SIGBUS or VM_FAULT_OOM as error otherwise. lowkey important, bestie 🫶

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🧚 SEE ALSO 🧚

• Kernel file ./arch/x86/kernel/cpu/sgx/encl.c
• reclaimer_writing_to_pcmd(9)
• sgx_encl_may_map(9)
• sgx_encl_release(9)
• sgx_encl_cpumask(9)
• __sgx_encl_get_backing(9)
• sgx_encl_alloc_backing(9)
• sgx_encl_lookup_backing(9)
• sgx_encl_put_backing(9)
• sgx_encl_test_and_clear_young(9)
• sgx_zap_enclave_ptes(9)
• sgx_alloc_va_page(9)
• sgx_alloc_va_slot(9)
• sgx_free_va_slot(9)
• sgx_va_page_full(9)
• sgx_encl_free_epc_page(9)

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and that’s the whole page, bestie 💖 cute little sign-off: source/version vibes come from ./arch/x86/kernel/cpu/sgx, dated October 2026, and the page itself is sgx_encl_eaug_page(9) ✨🎀