On 2/18/22 8:55 AM, Lu Baolu wrote:
v6:
- Refine comments and commit mesages.
- Rename iommu_group_set_dma_owner() to iommu_group_claim_dma_owner().
- Rename iommu_device_use/unuse_kernel_dma() to
iommu_device_use/unuse_default_domain().
- Remove unnecessary EXPORT_SYMBOL_GPL.
On 2/18/22 11:51 PM, Jason Gunthorpe wrote:
On Fri, Feb 18, 2022 at 08:55:10AM +0800, Lu Baolu wrote:
Hi folks,
The iommu group is the minimal isolation boundary for DMA. Devices in
a group can access each other's MMIO registers via peer to peer DMA
and also need share the same I/O address spac
On Fri, Feb 18, 2022 at 08:55:10AM +0800, Lu Baolu wrote:
> Hi folks,
>
> The iommu group is the minimal isolation boundary for DMA. Devices in
> a group can access each other's MMIO registers via peer to peer DMA
> and also need share the same I/O address space.
>
> Once the I/O address space is
Hi folks,
The iommu group is the minimal isolation boundary for DMA. Devices in
a group can access each other's MMIO registers via peer to peer DMA
and also need share the same I/O address space.
Once the I/O address space is assigned to user control it is no longer
available to the dma_map* API,
