AMD will reinstate memory encryption on Ryzen 9000 CPUs through a BIOS update in July — TSME is coming back after 'valuable community feedback'

2 days ago by BrikoX to c/amd

The feature was quietly removed through a firmware update on some non-PRO Ryzen CPUs.

a_non_monotonic_function 44 points 2 days ago

Removing features from firmware is a real dick move.

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Mihies 15 points 2 days ago

Luckily that guy noticed soon enough

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a_non_monotonic_function 10 points 2 days ago

Yea, but what about next time?

It should be illegal to cripple the things that we buy after the fact. In any way.

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Mihies 4 points a day ago

From what I read this is somewhat a gray area - AMD never stated that non pro CPUs support it, even though they do and they should. Anyway, it was a dick move.

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a_non_monotonic_function 1 point a day ago

If you don't want people to have it, ship without it, though.

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fonix232 2 points a day ago

if that was a hard law, many of the various execution prediction exploit prevention fixes couldn't have happened, as those fixes technically cripple performance...

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a_non_monotonic_function 1 point a day ago

I think there is a meaningful difference in this case.

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LodeMike 3 points a day ago

It's an ATTACK VECTOR.

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a_non_monotonic_function 2 points 7 hours ago

Without any comment from AMD, it appeared as though the company disabled TSME through firmware on its consumer parts in order to differentiate its PRO lineup.

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LodeMike 1 point 6 hours ago

🙄

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Advanced Micro Devices, Inc. (AMD) is an American multinational corporation and fabless semiconductor company that designs, develops and sells computer processors and related technologies for business and consumer markets.

AMD's main products include microprocessors, motherboard chipsets, embedded processors, and graphics processors for servers, workstations, personal computers, and embedded system applications. The company has also expanded into new markets, such as the data center, gaming, and high-performance computing markets. AMD's processors are used in a wide range of computing devices, including personal computers, servers, laptops, and gaming consoles.


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