Re: [Patch v4 00/13] Add PCI pass-thru support to Hyper-V Confidential VMs

Borislav Petkov
2023-01-09T18:47:25Z

On Thu, Dec 01, 2022 at 07:30:18PM -0800, Michael Kelley wrote:
> This patch series adds support for PCI pass-thru devices to Hyper-V
> Confidential VMs (also called "Isolation VMs"). But in preparation, it
> first changes how private (encrypted) vs. shared (decrypted) memory is
> handled in Hyper-V SEV-SNP guest VMs. The new approach builds on the
> confidential computing (coco) mechanisms introduced in the 5.19 kernel
> for TDX support and significantly reduces the amount of Hyper-V specific
> code. Furthermore, with this new approach a proposed RFC patch set for
> generic DMA layer functionality[1] is no longer necessary.

In any case, this is starting to get ready - how do we merge this?

I apply the x86 bits and give Wei an immutable branch to add the rest of the
HyperV stuff ontop?

--
Regards/Gruss,
Boris.