intel_gvt_write_gpa(9)

💅 intel_gvt_write_gpa — a kernel API manual moment

okay so bestie, welcome to intel_gvt_write_gpa(9), a page straight out of the Kernel API Manual. yes we're in the kernel manual, yes it's giving "serious business", but we're gonna get through it together 🫶

---

✨ NAME ✨

intel_gvt_write_gpa — copy data from host data buffer to GPA. that's the whole vibe. literally just shoving bytes from a host buffer into a guest physical address. no cap. 🎀

---

🌸 SYNOPSIS 🌸

int intel_gvt_write_gpa (struct intel_vgpu *vgpu , unsigned long gpa ,
       void *buf , unsigned long len );

like, that's the whole signature, character for character, don't come for me 😭

---

🦋 ARGUMENTS 🦋

so here's who's who in this function's group chat:

• vgpu — a vGPU. that's the star of the show, the main character energy virtual GPU 💜
• gpa — guest physical address. where the data's going, iykyk
• buf — host data buffer. where the data's coming from, the source of truth basically
• len — data length. how much of it we're moving, important to not skip 💅

---

⭐ RETURN ⭐

• Zero on success 🎉
• negative error code if it failed 😭

that's it. zero = slay. negative = not slay.

---

🔥 SEE ALSO 🔥

okay this is the friend group, the whole crew, all linked up:

• Kernel file ./drivers/gpu/drm/i915/gvt/gvt.h — literally the header, go read it, it's iconic
• intel_gvt_mmio_set_accessed(9)
• intel_gvt_mmio_is_cmd_accessible(9)
• intel_gvt_mmio_set_cmd_accessible(9)
• intel_gvt_mmio_is_unalign(9)
• intel_gvt_mmio_has_mode_mask(9)
• intel_gvt_mmio_is_sr_in_ctx(9)
• intel_gvt_mmio_set_sr_in_ctx(9)
• intel_gvt_mmio_set_cmd_write_patch(9)
• intel_gvt_mmio_is_cmd_write_patch(9)
• intel_gvt_read_gpa(9) — yeah, the read counterpart, they're siblings fr fr 🧚

no cap, that's every single one, none skipped, we don't do that here 💖

---

and that's the page bestie!! 🌈 this one came from ./drivers/gpu/drm/i915/gvt and it's dated October 2026 — so mark your calendar, or don't, it's a manpage footer not a birthday 🎂💀

stay hydrated, read your headers, and remember: zero on success, negative on fail, periodt 💅✨