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Good news for AMD Linux users - fTPM RNG will soon be disabled
(www.phoronix.com)
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this post was submitted on 08 Aug 2023
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Sweet. I'm switching to Ryzen next week and was hoping to see this resolved just in case.
You'll need to use a bleeding edge kernel to get this patch unless it's backported to older kernels by your distro's maintainers. I doubt this will happen for say Debian or Ubuntu. Instead, you'd have to wait for a new HWE that has this new kernel or whatever the equivalent in Debian is.
Yep. This system will be running Arch so I'm not too worried.
You can also solve this problem by disabling the TPM in the BIOS settings, assuming your motherboard has such a setting. No TPM, no problem.
Yeah. I think I disabled it the day I built my system.
This is the way. Besides these stuttering issues, the TPM is owner-disobedient (there is no way for the owner to extract keys stored in it) and an unnecessary attack surface (which, if breached, gives the attacker unfettered, persistent, and irrevocable access to the entire machine).