Re: [PATCH 0/7] x86/seves: Support 32-bit boot path and other updates

On Wed, Feb 10, 2021 at 04:12:25PM +0100, Joerg Roedel wrote:

Hi Konrad,

On Wed, Feb 10, 2021 at 09:58:35AM -0500, Konrad Rzeszutek Wilk wrote:

quoted

What GRUB versions are we talking about (CC-ing Daniel Kiper, who owns
GRUB).

I think this was about 32-bit GRUB builds used by distributions. I
personally tested it with a kernel which has EFI support disabled, in
this case the OVMF firmware will also boot into the startup_32 boot
path.

I think I am missing something obvious here - but why would you want
EFI support disabled?

Or is the idea that "legacy" OSes can nicely run under AMD SEV?
But since you are having a kernel patch that is not "legacy OS" anymore.

quoted

By 'some firmware' we talking SeaBIOS?

No, SeaBIOS is not supported for SEV-ES, only OVMF has handling for #VC
so far.

Regards,

	Joerg

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