kvm_nvhe_unwind_init(9)

💅 kvm_nvhe_unwind_init — like, the Kernel API Manual page you didn't know you needed

okay so bestie, buckle up 🎀 this one is from the kernel's own manual (kvm_nvhe_unwind_init(9), yes that's the whole page name, iconic), and it's honestly tiny but it's so important. it's the little function that kicks off an unwind starting from a specific fp and pc down in nVHE HYP land. let's get into it ✨

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✨ NAME ✨

kvm_nvhe_unwind_init — start an unwind from the given nVHE HYP fp and pc 🧚

like literally that's the whole job. it sets the stage so the unwinder knows where to begin. no cap.

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🌸 SYNOPSIS 🌸

void kvm_nvhe_unwind_init (struct unwind_state *state , unsigned long fp
, unsigned long pc );

she takes three things, returns nothing (void, so don't go looking for a return value, there isn't one 💀). the vibes are: hand her a state, a frame pointer, and a program counter, and she'll do the rest.

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🦋 ARGUMENTS 🦋

• state — the unwind_state you want to initialize 🫶 this is the main character, the thing she's filling in for you.
• fp — the frame pointer at which to start the unwinding. that's your starting point, your origin story 💖
• pc — the program counter at which to start the unwinding. yeah, both of them, she needs both, that's the whole point ✨

real talk: state gets initialized by this, so it's not a "read it and tell me stuff" situation — she's writing into it. treat it accordingly 🙈

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🔥 SEE ALSO 🔥

• Kernel file ./arch/arm64/include/asm/stacktrace/nvhe.h — go read the source, it's giving lore, iykyk 👑

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and that's the whole page, bestie, we ate and left no crumbs 🍓

cute little sign-off: this one ships out of the kernel source file ./arch/arm64/include/asm/stacktrace/nvhe.h (the footer squishes it down to ./arch/arm64/include/asm/stack..., but you get it 💜), and it's dated October 2026 ⭐ so yeah, future energy fr fr. bye bestie, happy unwinding 🌈💅