BUFFERS ALLOCATED BY THE FRONTEND DRIVER(9)

👑 Buffers allocated by the frontend driver

Okay bestie, welcome to the Kernel API Manual — section 9, and we're talking about the buffers allocated by the frontend driver. Main character energy only ✨

In this mode of operation, the driver allocates buffers from system memory. That's the whole vibe. 💅

Note! If this is used with accompanying DRM/(v)GPU drivers, this mode of operation may require IOMMU support on the platform — that's so the accompanying DRM/vGPU hardware can still reach display buffer memory while it's importing PRIME buffers from the frontend driver. No cap, that caveat is important. 🫶

🔗 SEE ALSO

• Kernel file ./drivers/gpu/drm/xen/xen_drm_front.h
• Driver modes of operation in terms of display buffers used(9)
• Buffers allocated by the backend(9)
• Driver limitations(9)

Signed off with love from ./drivers/gpu/drm/xen — October 2026 💖🎀