kvm_vz_lose_htimer(9)

💖 kvm_vz_lose_htimer 💖

okay so bestie, welcome to kvm_vz_lose_htimer(9) — this one lives in the Kernel API Manual, and its whole personality is: "Ensure hard guest timer is not in use." 🎀 That's literally the NAME section, no notes, she said what she said.

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✨ SYNOPSIS ✨

void kvm_vz_lose_htimer (struct kvm_vcpu *vcpu );

that's it. that's the whole function. returns nothing (void, she gives nothing and takes nothing 💅), takes one pointer, and then dips.

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🫶 ARGUMENTS 🫶

• vcpu — the Virtual CPU. like, the vCPU in question. the main character of this whole operation 💜

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💅 DESCRIPTION 💅

so here's the vibe check: this function transfers the state of the hard guest timer to the soft guest timer ✨ — and the important part, the part you cannot skip, is that it leaves guest state intact so it can continue to be used with the soft timer. 🦋

like… she's not deleting anything, she's not resetting anything, she is handing off the timer state so the guest can keep on keeping on with the soft timer instead. lowkey iconic behavior, honestly. no cap. 🔥

🧚 tiny reminder bestie: "leaving guest state intact so it can continue to be used with the soft timer" is the whole deal here. don't go reading extra meaning into it, that's exactly what the page says. 🙈

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🌈 SEE ALSO 🌈

okay so the friend group 👑

• Kernel file ./arch/mips/kvm/vz.c
• kvm_vz_should_use_htimer(9)
• _kvm_vz_restore_stimer(9)
• _kvm_vz_restore_htimer(9)
• kvm_vz_restore_timer(9)
• kvm_vz_acquire_htimer(9)
• _kvm_vz_save_htimer(9)
• kvm_vz_save_timer(9)
• is_eva_access(9)
• is_eva_am_mapped(9)
• kvm_vz_gva_to_gpa(9)
• kvm_vz_badvaddr_to_gpa(9)
• kvm_trap_vz_handle_cop_unusable(9)
• kvm_trap_vz_handle_msa_disabled(9)
• kvm_vz_resize_guest_vtlb(9)

like literally the whole squad, go read them too, iykyk 💖

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and that's the page!! 🎀 big slay to the <purple>./arch/mips/kvm</purple> directory for hosting her, and happy October 2026 reading bestie — mwah, go touch some timers ⭐👑💜