en Copyright 2015 Java http://172.16.0.5:8080/history/linux-6.15/tools/testing/selftests/tdx/config#00e07cfb selftests/tdx: Test TDX attestation GetReport supportAttestation is used to verify the trustworthiness of a TDX guest.During the guest bring-up, the Intel TDX module measures and recordsthe initial contents and configuration of the guest, and at runtime,guest software uses runtime measurement registers (RMTRs) to measureand record details related to kernel image, command line params, ACPItables, initrd, etc. At guest runtime, the attestation process is usedto attest to these measurements.The first step in the TDX attestation process is to get the TDREPORTdata. It is a fixed size data structure generated by the TDX modulewhich includes the above mentioned measurements data, a MAC ID toprotect the integrity of the TDREPORT, and a 64-Byte of user specifieddata passed during TDREPORT request which can uniquely identify theTDREPORT.Intel's TDX guest driver exposes TDX_CMD_GET_REPORT0 IOCTL interface toenable guest userspace to get the TDREPORT subtype 0.Add a kernel self test module to test this ABI and verify the validityof the generated TDREPORT.Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>Reviewed-by: Tony Luck <tony.luck@intel.com>Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>Acked-by: Kai Huang <kai.huang@intel.com>Acked-by: Wander Lairson Costa <wander@redhat.com>Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>Link: https://lore.kernel.org/all/20221116223820.819090-4-sathyanarayanan.kuppuswamy%40linux.intel.com List of files: /linux-6.15/tools/testing/selftests/tdx/config Wed, 16 Nov 2022 22:38:20 +0000 Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>