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authorJean-Philippe Brucker <jean-philippe.brucker@arm.com>2015-10-01 13:47:19 +0100
committerMarc Zyngier <marc.zyngier@arm.com>2015-10-09 23:11:57 +0100
commit4f64cb65bf76fbd89c62d8e69c7bf75091950739 (patch)
tree5f0a1c9211947e817be6f499f1491a4bbf1573d9 /virt
parent0b28f1db3dd2d4377c4a4dd8f85713ef44f11a25 (diff)
downloadlinux-linaro-stable-4f64cb65bf76fbd89c62d8e69c7bf75091950739.tar.gz
arm/arm64: KVM: Only allow 64bit hosts to build VGICv3
Hardware virtualisation of GICv3 is only supported by 64bit hosts for the moment. Some VGICv3 bits are missing from the 32bit side, and this patch allows to still be able to build 32bit hosts when CONFIG_ARM_GIC_V3 is selected. To this end, we introduce a new option, CONFIG_KVM_ARM_VGIC_V3, that is only enabled on the 64bit side. The selection is done unconditionally because CONFIG_ARM_GIC_V3 is always enabled on arm64. Reviewed-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'virt')
-rw-r--r--virt/kvm/arm/vgic.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c
index 6bd1c9bf7ae7..77b0176b0484 100644
--- a/virt/kvm/arm/vgic.c
+++ b/virt/kvm/arm/vgic.c
@@ -2122,7 +2122,7 @@ static int init_vgic_model(struct kvm *kvm, int type)
case KVM_DEV_TYPE_ARM_VGIC_V2:
vgic_v2_init_emulation(kvm);
break;
-#ifdef CONFIG_ARM_GIC_V3
+#ifdef CONFIG_KVM_ARM_VGIC_V3
case KVM_DEV_TYPE_ARM_VGIC_V3:
vgic_v3_init_emulation(kvm);
break;
@@ -2284,7 +2284,7 @@ int kvm_vgic_addr(struct kvm *kvm, unsigned long type, u64 *addr, bool write)
block_size = KVM_VGIC_V2_CPU_SIZE;
alignment = SZ_4K;
break;
-#ifdef CONFIG_ARM_GIC_V3
+#ifdef CONFIG_KVM_ARM_VGIC_V3
case KVM_VGIC_V3_ADDR_TYPE_DIST:
type_needed = KVM_DEV_TYPE_ARM_VGIC_V3;
addr_ptr = &vgic->vgic_dist_base;