From 986af8e0789a41ac4844e6eefed4a33e86524918 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Thu, 29 Aug 2013 11:08:22 +0100 Subject: ARM: KVM: vgic: simplify vgic_get_target_reg vgic_get_target_reg is quite complicated, for no good reason. Actually, it is fairly easy to write it in a much more efficient way by using the target CPU array instead of the bitmap. Signed-off-by: Marc Zyngier Signed-off-by: Gleb Natapov --- virt/kvm/arm/vgic.c | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) (limited to 'virt') diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c index 17c5ac7d10ed..a2d478aec046 100644 --- a/virt/kvm/arm/vgic.c +++ b/virt/kvm/arm/vgic.c @@ -432,19 +432,13 @@ static bool handle_mmio_priority_reg(struct kvm_vcpu *vcpu, static u32 vgic_get_target_reg(struct kvm *kvm, int irq) { struct vgic_dist *dist = &kvm->arch.vgic; - struct kvm_vcpu *vcpu; - int i, c; - unsigned long *bmap; + int i; u32 val = 0; irq -= VGIC_NR_PRIVATE_IRQS; - kvm_for_each_vcpu(c, vcpu, kvm) { - bmap = vgic_bitmap_get_shared_map(&dist->irq_spi_target[c]); - for (i = 0; i < GICD_IRQS_PER_ITARGETSR; i++) - if (test_bit(irq + i, bmap)) - val |= 1 << (c + i * 8); - } + for (i = 0; i < GICD_IRQS_PER_ITARGETSR; i++) + val |= 1 << (dist->irq_spi_cpu[irq + i] + i * 8); return val; } -- cgit v1.2.3-58-ga151