__encls_ret_N(9)

🎀 __encls_ret_N(9) 🎀

okay so welcome to the Kernel API Manual, bestie — today’s main character is __encls_ret_N, and yes the name is giving “underscores go brrr” 💅

🌸 NAME 🌸

__encls_ret_N — encode an ENCLS function that returns an error code in EAX

✨ SYNOPSIS ✨

__encls_ret_N (rax , inputs... );

🫶 ARGUMENTS 🫶

• rax — function number
• inputs — asm inputs for the function

💖 DESCRIPTION 💖

So this one emits assembly for an ENCLS function that returns an error code — EREMOVE is the example, iykyk. And because SGX isn’t complex enough as it is, functions that return an error code also modify flags. Like, of course they do 😭

🌈 RETURN 🌈

• 0 on success
• SGX error code on failure

🦋 SEE ALSO 🦋

• Kernel file ./arch/x86/kernel/cpu/sgx/encls.h
• encls_failed(9)
• __encls_N(9)

mwah 💋 xoxo — this cutie lives in ./arch/x86/kernel/cpu/sgx, dated October 2026, and the page is __encls_ret_N(9) 🫶✨