sgx_set_attribute(9)

💅 sgx_set_attribute(9) 💅

okay bestie, this is a Kernel API Manual page for sgx_set_attribute(9) — and yes, we're getting into kernel attribute business, but it's actually kinda straightforward. 🫶

✨ NAME ✨

sgx_set_attribute — Update allowed attributes given file descriptor

📜 SYNOPSIS 📜

       int sgx_set_attribute (unsigned long *allowed_attributes , unsigned int
       attribute_fd );

🧾 ARGUMENTS 🧾

• allowed_attributes — Pointer to allowed enclave attributes
• attribute_fd — File descriptor for specific attribute

💖 DESCRIPTION 💖

So basically: it appends the enclave attribute indicated by the file descriptor to the allowed attributes. 💫

Currently, only SGX_ATTR_PROVISIONKEY — indicated by /dev/sgx_provision — is supported. That's the whole supported set rn, no cap. 🎀

🔁 RETURN 🔁

• -0: — SGX_ATTR_PROVISIONKEY is appended to allowed_attributes
• -EINVAL: — Invalid, or not supported file descriptor

👀 SEE ALSO 👀

• Kernel file ./arch/x86/kernel/cpu/sgx/main.c — __sgx_alloc_epc_page(9)
• sgx_mark_page_reclaimable(9)
• sgx_unmark_page_reclaimable(9)
• sgx_alloc_epc_page(9)
• sgx_free_epc_page(9)
• sgx_update_svn(9)

💌 signed, sealed, delivered: source/version ./arch/x86/kernel/cpu/sgx, dated October 2026, page sgx_set_attribute(9). periodt. 💅✨