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3.1 Software interface The SMMU has three interfaces that software uses: Memory-based data structures to map devices to translation tables which are used to translate client device addres...

Configuring the Arm GIC This section of the guide describes how to enable and configure a GICv3-compliant interrupt controller in a bare metal environment. For detailed register descriptions see t...

What is TrustZone? TrustZone is the name of the Security architecture in the Arm A-profile architecture. First introduced in Armv6K, TrustZone is also supported in Armv7-A and Armv8-A. TrustZone p...

virtio feature : VIRTIO_RING_F_EVENT_IDX 我们这里抽象下，先定义一个producer, consumer的模型, 将 event_idx定义为head，将vring.idx定义为tail, 即 consumer modify head producer modify tail(和vring.idx一样，表示producer下次要存储数据的位置) ...

overflow virtio: ABSTRACTION API virtio-vring virtqueue ops vring vring struct vring notify sample of handle VirtIO ...