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| author | Marc Zyngier <marc.zyngier@arm.com> | 2014-05-15 11:03:25 +0200 |
|---|---|---|
| committer | Christoffer Dall <christoffer.dall@linaro.org> | 2014-07-11 13:57:35 +0200 |
| commit | f982cf4e9c37b19478c7bc6e0484a43a7e78cf57 (patch) | |
| tree | acb2c678e9ef7f0301025b4c2b2296991a402dc3 | |
| parent | KVM: ARM: vgic: split GICv2 backend from the main vgic code (diff) | |
| download | linux-f982cf4e9c37b19478c7bc6e0484a43a7e78cf57.tar.xz linux-f982cf4e9c37b19478c7bc6e0484a43a7e78cf57.zip | |
KVM: ARM: vgic: revisit implementation of irqchip_in_kernel
So far, irqchip_in_kernel() was implemented by testing the value of
vctrl_base, which worked fine with GICv2.
With GICv3, this field is useless, as we're using system registers
instead of a emmory mapped interface. To solve this, add a boolean
flag indicating if the we're using a vgic or not.
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
| -rw-r--r-- | include/kvm/arm_vgic.h | 3 | ||||
| -rw-r--r-- | virt/kvm/arm/vgic.c | 1 |
2 files changed, 3 insertions, 1 deletions
diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h index d8d52a9ca6a1..f6b9fec6fcac 100644 --- a/include/kvm/arm_vgic.h +++ b/include/kvm/arm_vgic.h @@ -117,6 +117,7 @@ struct vgic_params { struct vgic_dist { #ifdef CONFIG_KVM_ARM_VGIC spinlock_t lock; + bool in_kernel; bool ready; /* Virtual control interface mapping */ @@ -212,7 +213,7 @@ int kvm_vgic_vcpu_pending_irq(struct kvm_vcpu *vcpu); bool vgic_handle_mmio(struct kvm_vcpu *vcpu, struct kvm_run *run, struct kvm_exit_mmio *mmio); -#define irqchip_in_kernel(k) (!!((k)->arch.vgic.vctrl_base)) +#define irqchip_in_kernel(k) (!!((k)->arch.vgic.in_kernel)) #define vgic_initialized(k) ((k)->arch.vgic.ready) int vgic_v2_probe(struct device_node *vgic_node, diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c index e4b9cbbbee4c..1348e74c4d11 100644 --- a/virt/kvm/arm/vgic.c +++ b/virt/kvm/arm/vgic.c @@ -1650,6 +1650,7 @@ int kvm_vgic_create(struct kvm *kvm) } spin_lock_init(&kvm->arch.vgic.lock); + kvm->arch.vgic.in_kernel = true; kvm->arch.vgic.vctrl_base = vgic->vctrl_base; kvm->arch.vgic.vgic_dist_base = VGIC_ADDR_UNDEF; kvm->arch.vgic.vgic_cpu_base = VGIC_ADDR_UNDEF; |