Re: [PATCH v5 05/22] x86/virt/seamldr: Retrieve P-SEAMLDR information

[Huang, Kai]

On Sun, 2026-03-15 at 06:58 -0700, Chao Gao wrote:
> P-SEAMLDR returns its information such as version number, in response to
> the SEAMLDR.INFO SEAMCALL.
> 
> This information is useful for userspace. For example, the admin can decide
> which TDX module versions are compatible with the P-SEAMLDR according to
> the P-SEAMLDR version.
> 
> Retrieve P-SEAMLDR information in preparation for exposing P-SEAMLDR
> version and other necessary information to userspace. Export the new kAPI
> for use by tdx-host.ko.
> 
> Note that there are two distinct P-SEAMLDR APIs with similar names:
> 
>   SEAMLDR.INFO: Returns a SEAMLDR_INFO structure containing SEAMLDR
>                 information such as version and remaining updates.
> 
>   SEAMLDR.SEAMINFO: Returns a SEAMLDR_SEAMINFO structure containing SEAM
>                     and system information such as Convertible Memory
> 		    Regions (CMRs) and number of CPUs and sockets.
> 
> The former is used here.
> 
> For details, see "Intel® Trust Domain Extensions - SEAM Loader (SEAMLDR)
> Interface Specification" revision 343755-003.
> 
> Signed-off-by: Chao Gao <chao.gao@xxxxxxxxx>
> Tested-by: Farrah Chen <farrah.chen@xxxxxxxxx>
> 

Reviewed-by: Kai Huang <kai.huang@xxxxxxxxx>