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authorVladimir Murzin <vladimir.murzin@arm.com>2016-09-12 17:49:24 +0300
committerChristoffer Dall <christoffer.dall@linaro.org>2016-09-22 14:22:21 +0300
commitacda5430bee4621f218391d0bcfbe4412adb3554 (patch)
treed279ce897d2666ca9481963dca9fc9aede6e85dd /virt/kvm/arm/vgic/vgic.h
parenta078bedf17c2e43819fea54bdfd5793845142e3a (diff)
downloadlinux-acda5430bee4621f218391d0bcfbe4412adb3554.tar.xz
ARM: KVM: Support vgic-v3
This patch allows to build and use vgic-v3 in 32-bit mode. Unfortunately, it can not be split in several steps without extra stubs to keep patches independent and bisectable. For instance, virt/kvm/arm/vgic/vgic-v3.c uses function from vgic-v3-sr.c, handling access to GICv3 cpu interface from the guest requires vgic_v3.vgic_sre to be already defined. It is how support has been done: * handle SGI requests from the guest * report configured SRE on access to GICv3 cpu interface from the guest * required vgic-v3 macros are provided via uapi.h * static keys are used to select GIC backend * to make vgic-v3 build KVM_ARM_VGIC_V3 guard is removed along with the static inlines Acked-by: Marc Zyngier <marc.zyngier@arm.com> Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'virt/kvm/arm/vgic/vgic.h')
-rw-r--r--virt/kvm/arm/vgic/vgic.h54
1 files changed, 0 insertions, 54 deletions
diff --git a/virt/kvm/arm/vgic/vgic.h b/virt/kvm/arm/vgic/vgic.h
index 100045f3d98a..9d9e014765a2 100644
--- a/virt/kvm/arm/vgic/vgic.h
+++ b/virt/kvm/arm/vgic/vgic.h
@@ -72,7 +72,6 @@ static inline void vgic_get_irq_kref(struct vgic_irq *irq)
kref_get(&irq->refcount);
}
-#ifdef CONFIG_KVM_ARM_VGIC_V3
void vgic_v3_process_maintenance(struct kvm_vcpu *vcpu);
void vgic_v3_fold_lr_state(struct kvm_vcpu *vcpu);
void vgic_v3_populate_lr(struct kvm_vcpu *vcpu, struct vgic_irq *irq, int lr);
@@ -91,60 +90,7 @@ 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);
-#endif
-
#else
-static inline void vgic_v3_process_maintenance(struct kvm_vcpu *vcpu)
-{
-}
-
-static inline void vgic_v3_fold_lr_state(struct kvm_vcpu *vcpu)
-{
-}
-
-static inline void vgic_v3_populate_lr(struct kvm_vcpu *vcpu,
- struct vgic_irq *irq, int lr)
-{
-}
-
-static inline void vgic_v3_clear_lr(struct kvm_vcpu *vcpu, int lr)
-{
-}
-
-static inline void vgic_v3_set_underflow(struct kvm_vcpu *vcpu)
-{
-}
-
-static inline
-void vgic_v3_set_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr)
-{
-}
-
-static inline
-void vgic_v3_get_vmcr(struct kvm_vcpu *vcpu, struct vgic_vmcr *vmcr)
-{
-}
-
-static inline void vgic_v3_enable(struct kvm_vcpu *vcpu)
-{
-}
-
-static inline int vgic_v3_probe(const struct gic_kvm_info *info)
-{
- return -ENODEV;
-}
-
-static inline int vgic_v3_map_resources(struct kvm *kvm)
-{
- return -ENODEV;
-}
-
-static inline int vgic_register_redist_iodevs(struct kvm *kvm,
- gpa_t dist_base_address)
-{
- return -ENODEV;
-}
-
static inline int vgic_register_its_iodevs(struct kvm *kvm)
{
return -ENODEV;