Commit 71760950 authored by Alex Bennée's avatar Alex Bennée Committed by Christoffer Dall
Browse files

arm/arm64: KVM: add a common vgic_queue_irq_to_lr fn 



This helps re-factor away some of the repetitive code and makes the code
flow more nicely.

Signed-off-by: default avatarAlex Bennée <alex.bennee@linaro.org>
Signed-off-by: default avatarChristoffer Dall <christoffer.dall@linaro.org>
parent ecccf0cc

virt/kvm/arm/vgic.c

+17 −7
Original line number Diff line number Diff line
@@ -950,6 +950,20 @@ static void vgic_retire_disabled_irqs(struct kvm_vcpu *vcpu) 
	}

}



static void vgic_queue_irq_to_lr(struct kvm_vcpu *vcpu, int irq,

				 int lr_nr, struct vgic_lr vlr)

{

	if (vgic_dist_irq_is_pending(vcpu, irq)) {

		vlr.state |= LR_STATE_PENDING;

		kvm_debug("Set pending: 0x%x\n", vlr.state);

	}



	if (!vgic_irq_is_edge(vcpu, irq))

		vlr.state |= LR_EOI_INT;



	vgic_set_lr(vcpu, lr_nr, vlr);

}



/*

 * Queue an interrupt to a CPU virtual interface. Return true on success,

 * or false if it wasn't possible to queue it.
@@ -977,8 +991,7 @@ bool vgic_queue_irq(struct kvm_vcpu *vcpu, u8 sgi_source_id, int irq) 
		if (vlr.source == sgi_source_id) {

			kvm_debug("LR%d piggyback for IRQ%d\n", lr, vlr.irq);

			BUG_ON(!test_bit(lr, vgic_cpu->lr_used));

			vlr.state |= LR_STATE_PENDING;

			vgic_set_lr(vcpu, lr, vlr);

			vgic_queue_irq_to_lr(vcpu, irq, lr, vlr);

			return true;

		}

	}
@@ -995,11 +1008,8 @@ bool vgic_queue_irq(struct kvm_vcpu *vcpu, u8 sgi_source_id, int irq) 


	vlr.irq = irq;

	vlr.source = sgi_source_id;

	vlr.state = LR_STATE_PENDING;

	if (!vgic_irq_is_edge(vcpu, irq))

		vlr.state |= LR_EOI_INT;



	vgic_set_lr(vcpu, lr, vlr);

	vlr.state = 0;

	vgic_queue_irq_to_lr(vcpu, irq, lr, vlr);



	return true;

}