[RFC PATCH 3/5] arm/arm64: KVM: vgic: kill VGIC_MAX_CPUS

[Marc Zyngier]

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>
---
 arch/arm/kvm/arm.c     | 2 +-
 include/kvm/arm_vgic.h | 3 +--
 virt/kvm/arm/vgic.c    | 4 ++--
 3 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
index f0f7a8a..2f465fe 100644
--- a/arch/arm/kvm/arm.c
+++ b/arch/arm/kvm/arm.c
@@ -789,7 +789,7 @@ long kvm_arch_vm_ioctl(struct file *filp,
 	switch (ioctl) {
 	case KVM_CREATE_IRQCHIP: {
 		if (vgic_present)
-			return kvm_vgic_create(kvm, VGIC_MAX_CPUS, VGIC_NR_IRQS);
+			return kvm_vgic_create(kvm, KVM_MAX_VCPUS, VGIC_NR_IRQS);
 		else
 			return -ENXIO;
 	}
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
index 8ce9c08..4d4ab2e 100644
--- a/include/kvm/arm_vgic.h
+++ b/include/kvm/arm_vgic.h
@@ -30,11 +30,10 @@
 #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_MAX_LRS		(1 << 6)
 
 /* 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 951b560..259b9dd 100644
--- a/virt/kvm/arm/vgic.c
+++ b/virt/kvm/arm/vgic.c
@@ -954,7 +954,7 @@ 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);
 	}
@@ -1326,7 +1326,7 @@ int kvm_vgic_vcpu_init(struct kvm_vcpu *vcpu)
 	if (ret)
 		return ret;
 
-	if (vcpu->vcpu_id >= VGIC_MAX_CPUS)
+	if (vcpu->vcpu_id >= dist->nr_cpus)
 		return -EBUSY;
 
 	for (i = 0; i < VGIC_NR_IRQS; i++) {
-- 
1.8.2.3