Re: [RESEND PATCH v8 01/11] iommu: Add DMA ownership management interfaces

2022-06-15 Thread Steven Price
On 15/06/2022 11:57, Robin Murphy wrote: > On 2022-06-15 10:53, Steven Price wrote: >> On 18/04/2022 01:49, Lu Baolu wrote: >>> Multiple devices may be placed in the same IOMMU group because they >>> cannot be isolated from each other. These devices must either be >>> entirely under kernel control

Re: [RESEND PATCH v8 01/11] iommu: Add DMA ownership management interfaces

2022-06-15 Thread Robin Murphy
On 2022-06-15 10:53, Steven Price wrote: On 18/04/2022 01:49, Lu Baolu wrote: Multiple devices may be placed in the same IOMMU group because they cannot be isolated from each other. These devices must either be entirely under kernel control or userspace control, never a mixture. This adds dma

Re: [RESEND PATCH v8 01/11] iommu: Add DMA ownership management interfaces

2022-06-15 Thread Steven Price
On 18/04/2022 01:49, Lu Baolu wrote: > Multiple devices may be placed in the same IOMMU group because they > cannot be isolated from each other. These devices must either be > entirely under kernel control or userspace control, never a mixture. > > This adds dma ownership management in iommu core

[RESEND PATCH v8 01/11] iommu: Add DMA ownership management interfaces

2022-04-17 Thread Lu Baolu
Multiple devices may be placed in the same IOMMU group because they cannot be isolated from each other. These devices must either be entirely under kernel control or userspace control, never a mixture. This adds dma ownership management in iommu core and exposes several interfaces for the device