Re: [PATCH v15 00/12] Restricted DMA

2021-06-25 Thread Will Deacon
On Thu, Jun 24, 2021 at 03:19:48PM -0400, Konrad Rzeszutek Wilk wrote: > On Thu, Jun 24, 2021 at 11:55:14PM +0800, Claire Chang wrote: > > This series implements mitigations for lack of DMA access control on > > systems without an IOMMU, which could result in the DMA accessing the > > system memory

Re: [PATCH v15 00/12] Restricted DMA

2021-06-24 Thread Claire Chang
On Fri, Jun 25, 2021 at 3:20 AM Konrad Rzeszutek Wilk wrote: > > On Thu, Jun 24, 2021 at 11:55:14PM +0800, Claire Chang wrote: > > This series implements mitigations for lack of DMA access control on > > systems without an IOMMU, which could result in the DMA accessing the > > system memory at une

Re: [PATCH v15 00/12] Restricted DMA

2021-06-24 Thread Konrad Rzeszutek Wilk
On Thu, Jun 24, 2021 at 11:55:14PM +0800, Claire Chang wrote: > This series implements mitigations for lack of DMA access control on > systems without an IOMMU, which could result in the DMA accessing the > system memory at unexpected times and/or unexpected addresses, possibly > leading to data le