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@@ -26,17 +26,19 @@ There are 2 configurations for TDVF.
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- The OvmfX64Pkg.dsc includes SEV/TDX/normal OVMF basic boot capability.
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The final binary can run on SEV/TDX/normal OVMF.
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- No changes to existing OvmfPkgX64 image layout.
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- - No need to add additional security features if they do not exist today.
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- No need to remove features if they exist today.
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- - RTMR is not supported.
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- PEI phase is NOT skipped in either Td or Non-Td.
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+ - RTMR based measurement is supported.
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+ - External inputs from Host VMM are measured, such as TdHob, CFV.
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+ - Other external inputs are measured, such as FW_CFG data, os loader,
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+ initrd, etc.
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<b>Config-B:</b>
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- - (*) Add a standalone IntelTdx.dsc to a TDX specific directory for a *full*
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+ - Add a standalone IntelTdx.dsc to a TDX specific directory for a *full*
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feature TDVF.(Align with existing SEV)
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- - (*) Threat model: VMM is out of TCB. (We need necessary change to prevent
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+ - Threat model: VMM is out of TCB. (We need necessary change to prevent
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attack from VMM)
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- - (*) IntelTdx.dsc includes TDX/normal OVMF basic boot capability. The final
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+ - IntelTdx.dsc includes TDX/normal OVMF basic boot capability. The final
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binary can run on TDX/normal OVMF.
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- It might eventually merge with AmdSev.dsc, but NOT at this point of
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time. And we don?t know when it will happen. We need sync with AMD in
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@@ -48,13 +50,6 @@ There are 2 configurations for TDVF.
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initrd, etc.
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- Need to remove unnecessary attack surfaces, such as network stack.
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-In current stage, <b>Config-A</b> has been merged into edk2-master branch.
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-The corresponding pkg file is OvmfPkg/OvmfPkgX64.dsc.
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-
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-<b>Config-B</b> is split into several waves. The corresponding pkg file is
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-OvmfPkg/IntelTdx/IntelTdxX64.dsc. The features with (*) have been implemented
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-and merged into edk2-master branch. Others are in upstreaming progress.
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-
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Build
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------
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- Build the TDVF (Config-A) target:
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