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Intel Trust Domain Extensions (Intel TDX) extends Virtual Machine
Extensions (VMX) and Multi-Key Total Memory Encryption (MK-TME) with a
new kind of virtual machine guest called a Trust Domain(TD)[1]. A TD
runs in a CPU mode that is designed to protect the confidentiality of
its memory contents and its CPU state from any other software, including
the hosting Virtual Machine Monitor (VMM).
Trust Domain Virtual Firmware (TDVF) is required to provide Intel TDX
implementation and service for EFI_CC_MEASUREMENT_PROTOCOL[2]. The bugzilla
for TDVF is at https://bugzilla.tianocore.org/show_bug.cgi?id=3625.
To support CC measurement/attestation with Intel TDX technology, these 4
RTMR registers will be extended by TDX service like TPM/TPM2 PCR:
- RTMR[0] for TDVF configuration
- RTMR[1] for the TD OS loader and kernel
- RTMR[2] for the OS application
- RTMR[3] reserved for special usage only
Add a TDX Implementation for CC Measurement protocol along with
TPM/TPM2 protocol.
References:
[1] https://software.intel.com/content/dam/develop/external/us/en/documents/tdx-whitepaper-v4.pdf
[2] https://software.intel.com/content/dam/develop/external/us/en/documents/tdx-virtual-firmware-design-guide-rev-1.pdf
[3] https://software.intel.com/content/dam/develop/external/us/en/documents/intel-tdx-guest-hypervisor-communication-interface-1.0-344426-002.pdf
Signed-off-by: Lu Ken <ken.lu@intel.com>
[rharwood: style pass on code and commit message]
Signed-off-by: Robbie Harwood <rharwood@redhat.com>
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