hv_cpu_number_to_vp_number(9)

✨ hv_cpu_number_to_vp_number — the Kernel API Manual, bestie edition ✨

Okay so picture this: you're deep in kernel land, you've got a Linux CPU number in your hand, and the hypervisor is out there speaking a whole different dialect. This little function is the translator. It lives in the <pink>Kernel API Manual</pink> (manual section 9, for the curious 💅), and honestly it's giving interpreter at the UN energy.

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🌸 NAME 🌸

hv_cpu_number_to_vp_number — map CPU to VP 🗺️✨

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🎀 SYNOPSIS 🎀

int hv_cpu_number_to_vp_number (int cpu_number );

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🦋 ARGUMENTS 🦋

• cpu_number — the CPU number, but like… in Linux terms. That's the one you already know and love 🫶

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💜 DESCRIPTION 💜

So here's the tea ☕: this function returns the mapping between the Linux processor number and the hypervisor's virtual processor number. Lowkey iconic behavior.

Why do you care? Because it's useful when you're making hypercalls and such — y'know, the calls that talk about specific processors. If you're pointing at a processor, you gotta point at it in the language the hypervisor understands. No cap. 🔥

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⭐ RETURN ⭐

The virtual processor number in Hyper-V terms. That's the whole vibe check — a number comes back, and it's the Hyper-V-flavored one 👑

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🌈 SEE ALSO 🌈

Kernel file ./include/asm-generic/mshyperv.h — go peek, iykyk 👀💖

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fr fr bestie, if you need to talk about a specific processor to the hypervisor, this is the glow-up your CPU number needed 🧚✨

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Signed off with love from the ./include/asm-generic era, dated October 2026, and stamped with the manual name hv_cpu_number_to_vp_number(9) — periodt 💅🎀