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authorMarc Zyngier <marc.zyngier@arm.com>2015-11-30 13:09:53 +0000
committerChristoffer Dall <christoffer.dall@linaro.org>2016-05-20 15:39:48 +0200
commit59529f69f5048e50dcde3434661981c01f8208b4 (patch)
treec3482bd96679aab30e60e973cf708f7ff83aa9fc /virt/kvm/arm/vgic/vgic.c
parent140b086dd19771410915a924db2e635c2b51a0f4 (diff)
KVM: arm/arm64: vgic-new: Add GICv3 world switch backend
As the GICv3 virtual interface registers differ from their GICv2 siblings, we need different handlers for processing maintenance interrupts and reading/writing to the LRs. Implement the respective handler functions and connect them to existing code to be called if the host is using a GICv3. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'virt/kvm/arm/vgic/vgic.c')
-rw-r--r--virt/kvm/arm/vgic/vgic.c25
1 files changed, 20 insertions, 5 deletions
diff --git a/virt/kvm/arm/vgic/vgic.c b/virt/kvm/arm/vgic/vgic.c
index 44d2533ac84e..0bf0d2060053 100644
--- a/virt/kvm/arm/vgic/vgic.c
+++ b/virt/kvm/arm/vgic/vgic.c
@@ -400,12 +400,18 @@ retry:
static inline void vgic_process_maintenance_interrupt(struct kvm_vcpu *vcpu)
{
- vgic_v2_process_maintenance(vcpu);
+ if (kvm_vgic_global_state.type == VGIC_V2)
+ vgic_v2_process_maintenance(vcpu);
+ else
+ vgic_v3_process_maintenance(vcpu);
}
static inline void vgic_fold_lr_state(struct kvm_vcpu *vcpu)
{
- vgic_v2_fold_lr_state(vcpu);
+ if (kvm_vgic_global_state.type == VGIC_V2)
+ vgic_v2_fold_lr_state(vcpu);
+ else
+ vgic_v3_fold_lr_state(vcpu);
}
/* Requires the irq_lock to be held. */
@@ -414,17 +420,26 @@ static inline void vgic_populate_lr(struct kvm_vcpu *vcpu,
{
DEBUG_SPINLOCK_BUG_ON(!spin_is_locked(&irq->irq_lock));
- vgic_v2_populate_lr(vcpu, irq, lr);
+ if (kvm_vgic_global_state.type == VGIC_V2)
+ vgic_v2_populate_lr(vcpu, irq, lr);
+ else
+ vgic_v3_populate_lr(vcpu, irq, lr);
}
static inline void vgic_clear_lr(struct kvm_vcpu *vcpu, int lr)
{
- vgic_v2_clear_lr(vcpu, lr);
+ if (kvm_vgic_global_state.type == VGIC_V2)
+ vgic_v2_clear_lr(vcpu, lr);
+ else
+ vgic_v3_clear_lr(vcpu, lr);
}
static inline void vgic_set_underflow(struct kvm_vcpu *vcpu)
{
- vgic_v2_set_underflow(vcpu);
+ if (kvm_vgic_global_state.type == VGIC_V2)
+ vgic_v2_set_underflow(vcpu);
+ else
+ vgic_v3_set_underflow(vcpu);
}
/* Requires the ap_list_lock to be held. */