On 8/13/21 9:59 AM, 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())).
Reviewed-by: Joerg Roedel<redacted>
Co-developed-by: Andi Kleen<redacted>
Signed-off-by: Andi Kleen<redacted>
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>
---
arch/Kconfig | 3 +++
include/linux/protected_guest.h | 35 +++++++++++++++++++++++++++++++++
2 files changed, 38 insertions(+)
create mode 100644 include/linux/protected_guest.h
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
--
Sathyanarayanan Kuppuswamy
Linux Kernel Developer