If we aren't modeling a GIC, there is no need to save/restore the GICv3 state at all. Note that this only matters for nVHE, as VHE already has this code outside of the world switch.
Signed-off-by: Marc Zyngier <[email protected]> --- arch/arm64/kvm/hyp/nvhe/switch.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/arch/arm64/kvm/hyp/nvhe/switch.c b/arch/arm64/kvm/hyp/nvhe/switch.c index 0970442d2dbc..be77eb156542 100644 --- a/arch/arm64/kvm/hyp/nvhe/switch.c +++ b/arch/arm64/kvm/hyp/nvhe/switch.c @@ -101,16 +101,22 @@ static void __deactivate_vm(struct kvm_vcpu *vcpu) /* Save VGICv3 state on non-VHE systems */ static void __hyp_vgic_save_state(struct kvm_vcpu *vcpu) { - if (static_branch_unlikely(&kvm_vgic_global_state.gicv3_cpuif)) { + struct kvm *kvm = kern_hyp_va(vcpu->kvm); + + if (static_branch_unlikely(&kvm_vgic_global_state.gicv3_cpuif) && + (irqchip_is_gic_v2(kvm) || irqchip_is_gic_v3(kvm))) { __vgic_v3_save_state(&vcpu->arch.vgic_cpu.vgic_v3); __vgic_v3_deactivate_traps(&vcpu->arch.vgic_cpu.vgic_v3); } } -/* Restore VGICv3 state on non_VEH systems */ +/* Restore VGICv3 state on non-VHE systems */ static void __hyp_vgic_restore_state(struct kvm_vcpu *vcpu) { - if (static_branch_unlikely(&kvm_vgic_global_state.gicv3_cpuif)) { + struct kvm *kvm = kern_hyp_va(vcpu->kvm); + + if (static_branch_unlikely(&kvm_vgic_global_state.gicv3_cpuif) && + (irqchip_is_gic_v2(kvm) || irqchip_is_gic_v3(kvm))) { __vgic_v3_activate_traps(&vcpu->arch.vgic_cpu.vgic_v3); __vgic_v3_restore_state(&vcpu->arch.vgic_cpu.vgic_v3); } -- 2.27.0 _______________________________________________ kvmarm mailing list [email protected] https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
