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KVM: arm64: nv: Remove clearing of ICH_LR<n>.EOI if ICH_LR<n>.HW == 1

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In the case of ICH_LR<n>.HW == 1, bit 41 of LR is just a part of pINTID
without EOI meaning, and bit 41 will be zeroed by the subsequent clearing
of ICH_LR_PHYS_ID_MASK anyway.
No functional changes intended.

Signed-off-by: Wei-Lin Chang <r09922117@csie.ntu.edu.tw>
Link: https://lore.kernel.org/r/20250512133223.866999-1-r09922117@csie.ntu.edu.tw
Signed-off-by: Marc Zyngier <maz@kernel.org>
This commit is contained in:
Wei-Lin Chang 2025-05-12 21:32:23 +08:00 committed by Marc Zyngier
parent 00b0300cf1
commit 92c749e4aa
1 changed files with 0 additions and 3 deletions
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3
arch/arm64/kvm/vgic/vgic-v3-nested.c
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@ -240,9 +240,6 @@ static void vgic_v3_create_shadow_lr(struct kvm_vcpu *vcpu,
goto next;
}
/* It is illegal to have the EOI bit set with HW */
lr &= ~ICH_LR_EOI;
/* Translate the virtual mapping to the real one */
lr &= ~ICH_LR_PHYS_ID_MASK;
lr |= FIELD_PREP(ICH_LR_PHYS_ID_MASK, (u64)irq->hwintid);