kvm_adjust_itstate(9)

🌸 kvm_adjust_itstate(9) 🌸

okay bestie, welcome to the Kernel API Manual page for kvm_adjust_itstate 💖 this one is short, iconic, and very “trust me, the manual bookkeeping is the whole plot.”

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✨ NAME ✨

kvm_adjust_itstate — adjust ITSTATE when emulating instructions in IT-block 🫶

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🎀 SYNOPSIS 🎀

void kvm_adjust_itstate (struct kvm_vcpu *vcpu );

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💅 ARGUMENTS 💅

• vcpu — The VCPU pointer. that’s the whole argument, bestie, and yes it is literally the VCPU pointer 👑

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🦋 DESCRIPTION 🦋

so here’s the vibe: when exceptions occur while instructions are executed in Thumb IF-THEN blocks, the ITSTATE field of the CPSR is not advanced (updated). no cap, it just doesn’t get updated for you 😭 so we have to do this little bit of work manually. lowkey iconic of us, honestly.

the fields map like this:

IT[7:0] -> CPSR[26:25],CPSR[15:10]

that mapping is the main character here — copy it, respect it, don’t mess with it 💀

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🌈 SEE ALSO 🌈

• Kernel file ./arch/arm64/kvm/hyp/aarch32.c
• kvm_skip_instr32(9)

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mwah 💋 and that’s the whole page, bestie — from ./arch/arm64/kvm/hyp, dated October 2026, and yes it’s still kvm_adjust_itstate(9) ✨🎀