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What: /sys/firmware/sev/vulnerabilities/supported_mitigations
Date: June 2026
Contact: linux-crypto@vger.kernel.org
Description:
Read-only interface that reports the vector of SEV-SNP
firmware vulnerability mitigations supported by the firmware.
What: /sys/firmware/sev/vulnerabilities/verified_mitigations
Date: June 2026
Contact: linux-crypto@vger.kernel.org
Description:
Read/write interface that reports the vector of SEV-SNP
firmware vulnerability mitigations already verified by the
firmware. Writing a vector value requests the firmware to
VERIFY the corresponding mitigation bit(s).
The list of supported mitigations and the meaning of each
vector bit are both platform- and bug-specific and are
published as part of the AMD Security Bulletin.
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