[PATCH v3 4/9] arm/arm64: KVM: vgic: kill VGIC_MAX_CPUS

[Christoffer Dall]

On Tue, Jul 08, 2014 at 12:09:03PM +0100, Marc Zyngier wrote:
> We now have the information about the number of CPU interfaces in
> the distributor itself. Let's get rid of VGIC_MAX_CPUS, and just
> rely on KVM_MAX_VCPUS where we don't have the choice. Yet.
> 
> Signed-off-by: Marc Zyngier <marc.zyngier at arm.com>
> ---
>  include/kvm/arm_vgic.h | 3 +--
>  virt/kvm/arm/vgic.c    | 6 +++---
>  2 files changed, 4 insertions(+), 5 deletions(-)
> 
> diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
> index b8a6337..99ad8af 100644
> --- a/include/kvm/arm_vgic.h
> +++ b/include/kvm/arm_vgic.h
> @@ -29,13 +29,12 @@
>  #define VGIC_NR_SGIS		16
>  #define VGIC_NR_PPIS		16
>  #define VGIC_NR_PRIVATE_IRQS	(VGIC_NR_SGIS + VGIC_NR_PPIS)
> -#define VGIC_MAX_CPUS		KVM_MAX_VCPUS
>  
>  #define VGIC_V2_MAX_LRS		(1 << 6)
>  #define VGIC_V3_MAX_LRS		16
>  
>  /* Sanity checks... */
> -#if (VGIC_MAX_CPUS > 8)
> +#if (KVM_MAX_VCPUS > 8)
>  #error	Invalid number of CPU interfaces
>  #endif
>  
> diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c
> index 6f7cf85..3cb667c 100644
> --- a/virt/kvm/arm/vgic.c
> +++ b/virt/kvm/arm/vgic.c
> @@ -1206,7 +1206,7 @@ static bool vgic_queue_sgi(struct kvm_vcpu *vcpu, int irq)
>  
>  	sources = *vgic_get_sgi_sources(dist, vcpu_id, irq);
>  
> -	for_each_set_bit(c, &sources, VGIC_MAX_CPUS) {
> +	for_each_set_bit(c, &sources, dist->nr_cpus) {
>  		if (vgic_queue_irq(vcpu, c, irq))
>  			clear_bit(c, &sources);
>  	}
> @@ -1583,7 +1583,7 @@ int kvm_vgic_vcpu_init(struct kvm_vcpu *vcpu)
>  	struct vgic_dist *dist = &vcpu->kvm->arch.vgic;
>  	int i;
>  
> -	if (vcpu->vcpu_id >= VGIC_MAX_CPUS)
> +	if (vcpu->vcpu_id >= dist->nr_cpus)
>  		return -EBUSY;
>  
>  	for (i = 0; i < VGIC_NR_IRQS; i++) {
> @@ -1724,7 +1724,7 @@ static int vgic_init_maps(struct kvm *kvm)
>  	int nr_cpus, nr_irqs;
>  	int ret, i;
>  
> -	nr_cpus = dist->nr_cpus = VGIC_MAX_CPUS;
> +	nr_cpus = dist->nr_cpus = KVM_MAX_VCPUS;
>  	nr_irqs = dist->nr_irqs = VGIC_NR_IRQS;
>  
>  	ret  = vgic_init_bitmap(&dist->irq_enabled, nr_cpus, nr_irqs);
> -- 
> 2.0.0
> 

Reviewed-by: Christoffer Dall <christoffer.dall at linaro.org>