Re: [PATCHv6 1/4] x86/tdx: Introduce wrappers to read and write TD metadata

[Nikolay Borisov]

On 28.08.24 г. 12:35 ч., Kirill A. Shutemov wrote:
> The TDG_VM_WR TDCALL is used to ask the TDX module to change some
> TD-specific VM configuration. There is currently only one user in the
> kernel of this TDCALL leaf.  More will be added shortly.
>
> Refactor to make way for more users of TDG_VM_WR who will need to modify
> other TD configuration values.
>
> Add a wrapper for the TDG_VM_RD TDCALL that requests TD-specific
> metadata from the TDX module. There are currently no users for
> TDG_VM_RD. Mark it as __maybe_unused until the first user appears.
>
> This is preparation for enumeration and enabling optional TD features.
>
> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
> Reviewed-by: Kai Huang <kai.huang@xxxxxxxxx>
> Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx

Reviewed-by: Nikolay Borisov <nik.borisov@xxxxxxxx>