diff options
| author | Marc Zyngier <maz@kernel.org> | 2025-11-20 17:25:20 +0000 |
|---|---|---|
| committer | Oliver Upton <oupton@kernel.org> | 2025-11-24 14:29:13 -0800 |
| commit | 70fd60bdedc9ff4c4830a8b379fb65e6ba1e819f (patch) | |
| tree | 32a62841350a8ec361b728ecc3ca1a23cfa5d80e | |
| parent | 295b69216558367e5e833eb6d92ab2b476a8ad64 (diff) | |
KVM: arm64: GICv3: Set ICH_HCR_EL2.TDIR when interrupts overflow LR capacity
Now that we are ready to handle deactivation through ICV_DIR_EL1,
set the trap bit if we have active interrupts outside of the LRs.
Tested-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Tested-by: Mark Brown <broonie@kernel.org>
Link: https://msgid.link/20251120172540.2267180-31-maz@kernel.org
Signed-off-by: Oliver Upton <oupton@kernel.org>
| -rw-r--r-- | arch/arm64/kvm/vgic/vgic-v3.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm64/kvm/vgic/vgic-v3.c b/arch/arm64/kvm/vgic/vgic-v3.c index 9fcee5121fe5..09f86bf6fe7b 100644 --- a/arch/arm64/kvm/vgic/vgic-v3.c +++ b/arch/arm64/kvm/vgic/vgic-v3.c @@ -45,6 +45,13 @@ void vgic_v3_configure_hcr(struct kvm_vcpu *vcpu, ICH_HCR_EL2_VGrp0DIE : ICH_HCR_EL2_VGrp0EIE; cpuif->vgic_hcr |= (cpuif->vgic_vmcr & ICH_VMCR_ENG1_MASK) ? ICH_HCR_EL2_VGrp1DIE : ICH_HCR_EL2_VGrp1EIE; + + /* + * Note that we set the trap irrespective of EOIMode, as that + * can change behind our back without any warning... + */ + if (irqs_active_outside_lrs(als)) + cpuif->vgic_hcr |= ICH_HCR_EL2_TDIR; } static bool lr_signals_eoi_mi(u64 lr_val) |