vgic_its_invall(9)

💅 vgic_its_invall(9) — from the Kernel API Manual, bestie 🎀

Okay so picture this: you're deep in the kernel, arm64 edition, and you need to nuke some LPIs. This page is your girl. It's vgic_its_invall, straight out of the Kernel API Manual, and honestly? iconic. ✨

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🌸 NAME 🌸

vgic_its_invall — invalidate all LPIs targeting a given vcpu. all of them. every last one. periodt. 💅

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🦋 SYNOPSIS 🦋

int vgic_its_invall (struct kvm_vcpu *vcpu );

(it returns an int, she's giving main character energy, we love a return value 🫶)

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🎀 ARGUMENTS 🎀

• vcpu — the vcpu for which the RD is targeted by an invalidation. like, that's the vcpu. the one the RD is aimed at. no cap. 💖

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✨ DESCRIPTION ✨

So here's the tea, and it's lowkey important: contrary to the INVALL command, this targets a RD instead of a collection. different target, different vibe. 🦋

And because of that — plot twist — we don't need to hold the its_lock, since no ITS is involved here. that's it. that's the whole reason. no lock, no stress, no drama. 😌✨

fr fr though — this is genuinely why the lock isn't needed, not me being lazy. the ITS just isn't in the picture here. 💀

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👑 SEE ALSO 👑

Kernel file ./arch/arm64/kvm/vgic/vgic-its.c, plus the whole friend group:

• struct vgic_its_abi(9)
• entry_fn_t(9)
• scan_its_table(9)
• vgic_its_restore_ite(9)
• vgic_its_restore_itt(9)
• vgic_its_save_dte(9)
• vgic_its_restore_dte(9)
• handle_l1_dte(9)

go read them, they're all slay in their own way 🌈⭐

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and that's the page!! mwah 💋 this little cutie lives in ./arch/arm64/kvm/vgic, dated October 2026 — screenshot it, cite it, put it on your fridge, iykyk 🍓🧚💜