kvm_pmu_release_perf_event(9)

๐Ÿ“ฆ version 7.3.1, in nixpkgs unstable

๐Ÿ’– kvm_pmu_release_perf_event(9) ๐Ÿ’–

okay so bestie, welcome to the Kernel API Manual โ€” yes we're in the kernel docs now, main character energy only. This one's a little function from the arm64 KVM PMU corner of the world, and honestly? It's giving "small but important." Let's get into it ๐Ÿซถ


โœจ NAME โœจ

kvm_pmu_release_perf_event โ€” remove the perf event ๐Ÿ’…


๐ŸŒธ SYNOPSIS ๐ŸŒธ

void kvm_pmu_release_perf_event (struct kvm_pmc *pmc );

that's it. that's the whole vibe. no return value, it just goes in and does the thing โœจ


๐ŸŽ€ ARGUMENTS ๐ŸŽ€

  • pmc โ€” the PMU counter pointer ๐Ÿงฎโœจ like, the actual counter you're trying to free up. hand it over and it's done.

๐Ÿฆ‹ SEE ALSO ๐Ÿฆ‹

so this lives in the kernel file ./arch/arm64/kvm/pmu-emul.c โ€” that's the source of truth, note it ๐Ÿ“Œ

and while you're here, the whole friend group:

like, read the room โ€” it's a whole ecosystem, not just one function ๐Ÿ’€๐Ÿ’–


ngl this one is short and sweet: give it the struct kvm_pmc * and it removes the perf event. no cap, that's the whole manual. go off, kernel dev ๐Ÿ‘‘

and that's the tea ๐Ÿ“ this page was hanging out under ./arch/arm64/kvm, dated October 2026, and it's literally titled kvm_pmu_release_perf_event(9) โ€” iconic, no notes ๐Ÿ’œโœจ

๐Ÿ“ฆ where this page comes from