vgpu_pci_cfg_mem_write(9)

💖 NAME 💖

okay so bestie, this is vgpu_pci_cfg_mem_write(9) from the Kernel API Manual — the function is vgpu_pci_cfg_mem_write, and its whole thing is write virtual cfg space memory. periodt. 💅✨

🌸 SYNOPSIS 🌸

       void vgpu_pci_cfg_mem_write (struct intel_vgpu *vgpu , unsigned int off
       , u8 *src , unsigned int bytes );

🎀 ARGUMENTS 🎀

• vgpu — the target vgpu, aka the struct intel_vgpu * you're working with. 👑
• off — the offset. 📍
• src — the src ptr to write from. 🌸
• bytes — number of bytes. 🔢

✨ DESCRIPTION ✨

Call this function when you need to write virtual cfg space memory. ✨ For standard cfg space, only RW bits can be changed — that's the rule, no cap. It also emulates the RW1C behavior of the PCI_STATUS register, so that part is handled. 💅

🦋 SEE ALSO 🦋

• Kernel file ./drivers/gpu/drm/i915/gvt/cfg_space.c — the source spot for this whole situation. 📁
• intel_vgpu_emulate_cfg_read(9)
• intel_vgpu_emulate_cfg_write(9)
• intel_vgpu_init_cfg_space(9)
• intel_vgpu_reset_cfg_space(9)

sign-off: source tree ./drivers/gpu/drm/i915/gvt, manual/version Kernel API Manual, date October 2026, page vgpu_pci_cfg_mem_write(9). Bye bestie, go write that virtual cfg space memory 💅✨🫶