Re: [PATCH 01/11] mm: Introduce a function to check for virtualization protection features

On Tue, Jul 27, 2021 at 05:26:04PM -0500, Tom Lendacky wrote:

In prep for other protected virtualization technologies, introduce a generic helper function, prot_guest_has(), that can be used to check for specific protection attributes, like memory encryption. This is intended to eliminate having to add multiple technology-specific checks to the code (e.g. if (sev_active() || tdx_active())).

Co-developed-by: Andi Kleen ak@linux.intel.com Signed-off-by: Andi Kleen ak@linux.intel.com Co-developed-by: Kuppuswamy Sathyanarayanan sathyanarayanan.kuppuswamy@linux.intel.com Signed-off-by: Kuppuswamy Sathyanarayanan sathyanarayanan.kuppuswamy@linux.intel.com Signed-off-by: Tom Lendacky thomas.lendacky@amd.com

Reviewed-by: Joerg Roedel jroedel@suse.de