kvm_vz_acquire_htimer(9)

📦 version 7.3.1, in nixpkgs unstable

okay so this is kvm_vz_acquire_htimer(9) from the Kernel API Manual, and she is here to explain hard timer state like a group-chat queen 💅✨

💖 NAME 💖

kvm_vz_acquire_htimer — switch to hard timer state. periodt.

✨ SYNOPSIS ✨

void kvm_vz_acquire_htimer (struct kvm_vcpu *vcpu );

🎀 ARGUMENTS 🎀

  • vcpu — Virtual CPU. that's the virtual CPU in question, bestie 🫶

🦋 DESCRIPTION 🦋

okay so what this does is restore hard timer state on top of existing soft timer state — but only if possible. no cap, that "if possible" is doing important work 💅

big caveat, bestie: since the hard timer won't remain active over preemption, preemption should be disabled by the caller. this is not a vibe suggestion, it's the rule 😭

🌈 SEE ALSO 🌈

kernel file ./arch/mips/kvm/vz.c is the source spot, and the whole squad is: kvm_vz_should_use_htimer(9), _kvm_vz_restore_stimer(9), _kvm_vz_restore_htimer(9), kvm_vz_restore_timer(9), _kvm_vz_save_htimer(9), kvm_vz_save_timer(9), kvm_vz_lose_htimer(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). 💖

mwah 💋 this page's source/version is ./arch/mips/kvm, dated October 2026, and it's serving kvm_vz_acquire_htimer(9) realness. bye bestie 🫶🌸

📦 where this page comes from