Re: [PATCH Part1 RFC v3 20/22] x86/boot: Add Confidential Computing address to setup_header
From: Borislav Petkov <bp@alien8.de>
Date: 2021-06-24 07:27:53
Also in:
kvm, linux-crypto, linux-efi, linux-mm, lkml, platform-driver-x86
On Wed, Jun 23, 2021 at 10:19:11PM -0500, Michael Roth wrote:
One downside to this is we still need something in the boot protocol, either via setup_data, or setup_header directly.
Huh, now I'm confused. You gave the acpi_rsdp_addr example and I thought that should be enough, that's why I suggested boot_params. Maybe you should point me to the code which does what you need so that I can get a better idea...
Having it in setup_header avoids the need to also have to add a field to boot_params for the boot/compressed->uncompressed passing, but maybe that's not a good enough justification. Perhaps if the TDX folks have similar needs though.
Yes, reportedly they do so I guess the solution should be
vendor-agnostic. Let's see what they need first.
Thx.
--
Regards/Gruss,
Boris.
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