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ARM: KVM: Support vGICv3 ITS

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This patch allows to build and use vGICv3 ITS in 32-bit mode.

Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Vladimir Murzin
2016-11-02 11:55:34 +00:00
committed by Marc Zyngier
parent e29bd6f267
commit 2988509dd8
10 changed files with 11 additions and 41 deletions
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2
virt/kvm/arm/vgic/vgic-kvm-device.c
View File

@@ -221,11 +221,9 @@ int kvm_register_vgic_device(unsigned long type)
ret = kvm_register_device_ops(&kvm_arm_vgic_v3_ops,
KVM_DEV_TYPE_ARM_VGIC_V3);
#ifdef CONFIG_KVM_ARM_VGIC_V3_ITS
if (ret)
break;
ret = kvm_vgic_register_its_device();
#endif
break;
}

2
virt/kvm/arm/vgic/vgic-mmio-v3.c
View File

@@ -42,7 +42,6 @@ u64 update_64bit_reg(u64 reg, unsigned int offset, unsigned int len,
return reg | ((u64)val << lower);
}
#ifdef CONFIG_KVM_ARM_VGIC_V3_ITS
bool vgic_has_its(struct kvm *kvm)
{
struct vgic_dist *dist = &kvm->arch.vgic;
@@ -52,7 +51,6 @@ bool vgic_has_its(struct kvm *kvm)
return dist->has_its;
}
#endif
static unsigned long vgic_mmio_read_v3_misc(struct kvm_vcpu *vcpu,
gpa_t addr, unsigned int len)

26
virt/kvm/arm/vgic/vgic.h
View File

@@ -84,37 +84,11 @@ int vgic_v3_probe(const struct gic_kvm_info *info);
int vgic_v3_map_resources(struct kvm *kvm);
int vgic_register_redist_iodevs(struct kvm *kvm, gpa_t dist_base_address);
#ifdef CONFIG_KVM_ARM_VGIC_V3_ITS
int vgic_register_its_iodevs(struct kvm *kvm);
bool vgic_has_its(struct kvm *kvm);
int kvm_vgic_register_its_device(void);
void vgic_enable_lpis(struct kvm_vcpu *vcpu);
int vgic_its_inject_msi(struct kvm *kvm, struct kvm_msi *msi);
#else
static inline int vgic_register_its_iodevs(struct kvm *kvm)
{
return -ENODEV;
}
static inline bool vgic_has_its(struct kvm *kvm)
{
return false;
}
static inline int kvm_vgic_register_its_device(void)
{
return -ENODEV;
}
static inline void vgic_enable_lpis(struct kvm_vcpu *vcpu)
{
}
static inline int vgic_its_inject_msi(struct kvm *kvm, struct kvm_msi *msi)
{
return -ENODEV;
}
#endif
int kvm_register_vgic_device(unsigned long type);
int vgic_lazy_init(struct kvm *kvm);