[PATCH v4 00/75] x86: SEV-ES Guest Support

Joerg Roedel
2020-07-22T17:45:35Z

On Wed, Jul 22, 2020 at 09:54:40AM -0700, Erdem Aktas
wrote:
> I am using a custom, optimized and stripped down version, OVMF build.
> Do you think it is because of the OVMF or grub?

Not sure, I havn't looked into how grub decides which entry point to
use.

> In my case, there are 2 places where the CPUID is called: the first
> one is to decide if long mode is supported, along with few other
> features like SSE support and the second one is to retrieve the
> encryption bit location.

Yes, it is basically the verify_cpu() function that is causing the
trouble. If you want to work around it you can comment it out in that
path for testing purposes.

Regards,

	Joerg