Re: [RFC v2 0/5] Restricted DMA

2020-07-28 Thread Claire Chang
It seems that I didn't rebase the patchset properly. There are some build test errors. Sorry about that. Please kindly ignore those rebase issues. I'll fix them in the next version. On Tue, Jul 28, 2020 at 1:01 PM Claire Chang wrote: > > This series implements mitigations for lack of DMA access

[RFC v2 0/5] Restricted DMA

2020-07-27 Thread Claire Chang
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 leakage or corruption. For example, we plan to use the PCI-e bus for