Re: [PATCH 0/2] iommu/amd: Fix IOMMUv2 devices when SME is active

From: jroedel@xxxxxxx
Date: Fri Aug 28 2020 - 11:29:49 EST


On Fri, Aug 28, 2020 at 03:11:32PM +0000, Deucher, Alexander wrote:
> There are hw bugs on Raven and probably Carrizo/Stoney where they need
> 1:1 mapping to avoid bugs in some corner cases with the displays.
> Other GPUs should be fine. The VIDs is 0x1002 and the DIDs are 0x15dd
> and 0x15d8 for raven variants and 0x9870, 0x9874, 0x9875, 0x9876,
> 0x9877 and 0x98e4 for carrizo and stoney. As long as we
> preserve the 1:1 mapping for those asics, we should be fine.

Okay, Stoney at least has no Zen-based CPU, so no support for memory
encryption anyway. How about Raven, is it paired with a Zen CPU?

Regards,

Joerg