xe_guc_pagefault_handler(9)

✨ xe_guc_pagefault_handler(9) ✨

okay so bestie, welcome to the Kernel API Manual 💖 — this page is all about xe_guc_pagefault_handler, aka the G2H page fault handler. lowkey iconic behavior, fr fr.

🌸 NAME 🌸

xe_guc_pagefault_handler — G2H page fault handler 🎀

🦋 SYNOPSIS 🦋

int xe_guc_pagefault_handler (struct xe_guc *guc , u32 *msg , u32 len );

🫶 ARGUMENTS 🫶

• guc — the GuC object, your main character here 👑
• msg — the G2H message, literally the message from GuC to host 📨
• len — the length of the G2H message, so we know how much message we're dealing with 📏

💅 DESCRIPTION 💅

bestie, this function parses the GuC to host (G2H) message into a struct xe_pagefault and forwards it onto the Xe page fault layer. that's the whole vibe — parse it, then pass it along ✨

🔥 RETURN 🔥

0 on success, errno on failure. slay when it works, errno when it doesn't 😭

🌈 SEE ALSO 🌈

the kernel file to check out: ./drivers/gpu/drm/xe/xe_guc_pagefault.c 👀

mwah 💋 this page came from the Kernel API Manual, sourced from ./drivers/gpu/drm/xe, dated October 2026 — periodt, bestie 🫶