intel_vgpu_emulate_cfg_read(9)

✨ intel_vgpu_emulate_cfg_read ✨

okay so bestie, welcome to the Kernel API Manual 💖 this one's literally called intel_vgpu_emulate_cfg_read and it does exactly what it says on the tin — it emulates a vGPU configuration space read. iconic behaviour, no notes 🎀

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🌸 SYNOPSIS 🌸

int intel_vgpu_emulate_cfg_read (struct intel_vgpu *vgpu , unsigned int
offset , void *p_data , unsigned int bytes );

like, that's the whole vibe. four args, one int coming back at you 🦋

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💅 ARGUMENTS 💅

• vgpu — the target vgpu, aka the main character of this whole operation 👑
• offset — the offset, yes girl that's the one, literally the offset 📍
• p_data — return data ptr, this is where the read data lands, she's the destination 💌
• bytes — number of bytes to read, so like, how much we're grabbing 🔥

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⭐ RETURN ⭐

Zero on success 🎉 — and a negative error code if it failed 😭 so yeah, check your return value, bestie, fr fr.

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🦋 SEE ALSO 🦋

the kernel file lives right here, go treat yourself:

• ./drivers/gpu/drm/i915/gvt/cfg_space.c

and these absolute icons are in the same friend group:

• vgpu_pci_cfg_mem_write(9)
• intel_vgpu_emulate_cfg_write(9)
• intel_vgpu_init_cfg_space(9)
• intel_vgpu_reset_cfg_space(9)

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ngl this page is short and sweet and that's the way we like it 🍓 read the source, check the return, stay hydrated 🧚

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signed off with love from ./drivers/gpu/drm/i915/gvt, dated October 2026, and yeah — this whole thing is literally the intel_vgpu_emulate_cfg_read(9) page, periodt 💜✨