GUC RELAY VF PF ABI VERSION(9)

💖 GuC Relay VF/PF ABI Version 💖

okay bestie, welcome to the GuC Relay VF/PF ABI Version(9) page from the Kernel API Manual — yes, the title said it twice, we’re not doing that, but now you know 💅. this is literally the vibe check for which VF/PF ABI versions drivers are allowed to speak.

the GUC_RELAY_VERSION_BASE defines the minimum VF/PF ABI version that drivers must support. currently? version 1.0. slay.

the GUC_RELAY_VERSION_LATEST defines the latest VF/PF ABI version that drivers may use. currently? also version 1.0. iconic.

some platforms may require a different base VF/PF ABI version — platforms can have main character energy like that, honestly. but fr fr: no supported VF/PF ABI version can be 0.0. not 0.0, bestie, that’s not it. 🫶

👀 SEE ALSO 👀

• Kernel file ./drivers/gpu/drm/xe/abi/guc_relay_actions_abi.h — GuC Relay Actions(9)
• VF2PF_HANDSHAKE(9)
• VF2PF_QUERY_RUNTIME(9)
• GuC Relay Debug Actions(9)
• VFXPF_TESTLOOP(9)

mwah 💋 this lil page lives under ./drivers/gpu/drm/xe/abi, it’s dated October 2026, and it’s called GuC Relay VF/PF ABI Version(9). periodt. 🌈✨