kvm_s390_pv_deinit_vm(9)

✨ kvm_s390_pv_deinit_vm(9) ✨

okay bestie so like, welcome to the Kernel API Manual 💖 we're doing kvm_s390_pv_deinit_vm(9) today and honestly? it's giving cleanup era. it's giving "we're so done here". no cap, let's get into it 🫶

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🌸 NAME 🌸

kvm_s390_pv_deinit_vm — deinitialize the current protected VM ✨ (yep, that's the whole thing, she's literally that simple 💅)

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🎀 SYNOPSIS 🎀

int kvm_s390_pv_deinit_vm (struct kvm *kvm , u16 *rc , u16 *rrc );

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🦋 ARGUMENTS 🦋

• kvm — the KVM whose protected VM needs to be deinitialized. like this is THE vm, the main character of the operation 👑
• rc — the RC code of the UVC. important little guy 💜
• rrc — the RRC code of the UVC. his bestie, also important 💜

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🌈 DESCRIPTION 🌈

so what this does is deinitialize the current protected VM. she will destroy and cleanup the current protected VM — like fully closing the tab, closing the whole browser — but ⚠️ she will not cleanup the guest memory. that part is not her job, she said not today 💀

so the way this works is, you should only call this when the protected VM has just been created and therefore does not have any guest memory. OR — and this is the other vibe — when the caller cleans up the guest memory separately. so like, either it's a brand new baby VM with nothing in it, or you're handling the memory yourself on your own time. iykyk 🌸

🚨 okay this is the important part, don't skip it: this function should not fail, but if it does, the donated memory must not be freed. like i'm serious, do not free it. periodt. 🔥

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🧚 CONTEXT 🧚

kvm->lock needs to be held 🙈 — like, you literally cannot do this without it, so lock it first bestie, it's a vibe check you have to pass.

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⭐ RETURN ⭐

0 in case of success ✨ otherwise -EIO. so it's literally just the two outcomes, no in-between, no maybe 😭

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💜 SEE ALSO 💜

okay so there's a whole little friend group here, let me introduce everyone 🥰

• kernel file ./arch/s390/kvm/s390/pv.c — that's where she lives, that's the home address 🏠
• should_export_before_import(9)
• kvm_s390_pv_make_secure(9)
• kvm_s390_pv_destroy_page(9)
• struct pv_vm_to_be_destroyed(9)
• kvm_s390_pv_dispose_one_leftover(9)
• kvm_s390_pv_set_aside(9)
• kvm_s390_pv_deinit_cleanup_all(9)
• kvm_s390_pv_deinit_aside_vm(9)
• kvm_s390_pv_dump_stor_state(9)
• kvm_s390_pv_dump_complete(9)

go read them, they're all icons, you're welcome 💅

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and that's the page bestie!! 🎀 written straight out of ./arch/s390/kvm/s390 and dated October 2026 — so mark your calendars or whatever ⭐💖 mwah, go hold that lock and slay 🦋✨