Re: [PATCHv7 00/14] mm, x86/cc: Implement support for unaccepted memory

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On Tue, Jul 19, 2022 at 11:29:32AM -0700, Dionna Amalie Glaze wrote:
> How about instead of the limited resource of UTS_VERSION, we add a
> SETUP_BOOT_FEATURES enum for setup_data in the boot header? That would
> be easier to parse out and more extensible in the future.
> https://www.kernel.org/doc/html/latest/x86/boot.html?highlight=boot
> 
> This can contain a bitmap of a number of features that we currently
> need manual tagging for, such as SEV guest support, SEV-SNP guest
> support, TDX guest support, and (CONFIG_UNACCEPTED_MEMORY, TDX) or
> (CONFIG_UNACCEPTED_MEMORY, SEV-SNP).
> The VMM, UEFI, or boot loader can read these from the images/kernels
> and have the appropriate behavior.

I think for stuff like that you want loadflags or xloadflags in the
setup header.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette




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