static void *vfio_iommu_type1_open(unsigned long arg) { struct vfio_iommu *iommu; iommu = kzalloc(sizeof(*iommu), GFP_KERNEL); switch (arg) { case VFIO_TYPE1_IOMMU: break; case VFIO_TYPE1_NESTING_IOMMU: iommu->nesting = true; case VFIO_TYPE1v2_IOMMU: iommu->v2 = true; break; ...
1. 解释vfio_iommu_type1是什么 vfio_iommu_type1是Linux内核中的一个模块,属于VFIO(Virtual Function I/O)框架的一部分。VFIO框架旨在提供一种安全、高效的方式来虚拟化和管理硬件设备的I/O操作。vfio_iommu_type1模块实现了对IOMMU(Input-Output Memory Management Unit,输入/输出内存管理单元)类型1的支持,允许...
在K8S中,vfio_iommu_type1_attach_group 是一种非常重要的特性,它允许用户将 VFIO 设备(例如GPU设备)直接分配给容器,以获得更好的性能和隔离性。 首先,让我们来了解一下 vfio_iommu_type1_attach_group 的工作原理和实现流程。下面是一个简单的步骤表格: | 步骤 | 操作 | |---|---| | 1 | 配置 K8S ...
vfio: Remove VFIO_TYPE1_NESTING_IOMMU Browse files This control causes the ARM SMMU drivers to choose a stage 2 implementation for the IO pagetable (vs the stage 1 usual default), however this choice has no significant visible impact to the VFIO user. Further qemu never implemented this ...
> > Intel IOMMU), but shouldn't this really be a property of the interrupt > > controller itself? On ARM with GICv3, there is a separate block called the > > ITS (interrupt translation service) which is part of the interrupt