[Test] OvmfPkg/AmdSev: Rework Blob Verifier #5655
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The Blob Verifier checks boot artifacts against a hash table injected by the hypervisor and measured by hardware. Update the Blob Verifier to enter a dead loop if the artifacts do not match. Signed-off-by: Tobin Feldman-Fitzthum <tobin@linux.ibm.com>
A malicious host may be able to undermine the fw_cfg interface such that loading a blob fails. In this case rather than continuing to the next boot option, the blob verifier should halt. For non-confidential guests, the error should be non-fatal. Signed-off-by: Tobin Feldman-Fitzthum <tobin@linux.ibm.com>
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