AMD will reinstate memory encryption on Ryzen 9000 CPUs through a BIOS update in July — TSME is coming back after 'valuable community feedback'
https://www.tomshardware.com/pc-components/cpus/amd-will-reinstate-memory-encryption-on-ryzen-9000-cpus-through-a-bios-update-in-july-tsme-is-coming-back-after-valuable-community-feedback
114 points · 13 comments · view on lemmy.world
13 Comments
tiramichu@sh.itjust.works · 41 pts · 80d
It really should be illegal to remove via updates any feature of a product which was present at the time of purchase.
AwesomeLowlander@sh.itjust.works · 14 pts · 80d
Usually yeah, but to my understanding this feature was only advertised in their Pro version of the chip. I suspect it got enabled by mistake in the consumer version and nobody really noticed until now.
Redjard@reddthat.com · 7 pts · 80d
Earlier article mentioned it was acknowledged by high ranking amd officials multiple times over the years.
So they definitely knew.
It might have been that it wasn't documented internally and someone else removed it not knowing it was in use.
But at the latest with the initial bug report this was clear, at that point it did reach people who knew. So not undoing it, especially given the severity of the impact of silently disabling a security feature, is absolutely on amd with no excuse.
AwesomeLowlander@sh.itjust.works · 3 pts · 80d
Could you link the article? The one I've seen is the Ars Technica one, which mentions an engineer. That doesn't mean he knows which features are supposed to not supposed to be commercially available, just what they actually do ship with. Left hand not knowing what the right is doing, basically.
Edit: I assume you're referring to this paragraph -
Nothing there makes me think differently. Engineer says that yes, the hardware supports it (because it does). Only later does somebody realise that no, the hardware actually isn't supposed to be supporting it, they forgot to turn it off. Technical vs business.
It's even suggested at the end of the Ars Technica article as one of the most likely reasons for the issue.
Redjard@reddthat.com · 3 pts · 80d
It is from a different article going deeper into it:
https://www.tomshardware.com/pc-components/cpus/amd-silently-removes-memory-encryption-from-consumer-ryzen-cpus-leaving-users-unaware-that-they-may-be-vulnerable-security-feature-vanishes-after-newer-agesa-firmware-amd-engineers-go-radio-silent-when-pressed-about-the-change
So this engineer is openly recommending it.
amd itself never stated anything at all, one way or another.
This sort of implies both knew of it and didn't know of the specifics of the removal. But it isn't clear.
Reading it again I may havw over-remembered though, to be fair. Not as high level as I thought.
This does also mention that amd didn't "advertise rhe feature only for pro cpus". They never specified it at all, so all there was to go on was the actual cpu behavior, which did support it on all lineups. With a feature mentioned and not stated to only be present on some lineups, it's also reasonable to expect it present on all cpus.
veniasilente@lemmy.dbzer0.com · 1 pts · 80d
At least here in my country we have a sort of "third time's the charm" law. If something is allowed or let go despite being notified or complained about a third time, it's understood that this allowance is (and, more importantly, was) intended de facto. AMD got more than enough notifications and time to deal with what was going on. Even more before the release of the products.
ImgurRefugee114@reddthat.com · 27 pts · 80d
krigo666@lemmy.world · 19 pts · 80d
After they were caught, that is.
veniasilente@lemmy.dbzer0.com · 1 pts · 80d
Molotovs are a valuable, warm form of feedback!
DupaCycki@lemmy.world · 10 pts · 80d
Daily reminder that AMD is not a good company. Just less bad than Intel or Nvidia.
If you can, avoid giving them any money.
scrubbles@poptalk.scrubbles.tech · 9 pts · 80d
They just cannot stand being on top. They finally make components that are better than any competitor's and they have to then ruin their own success.
brawndo@piefed.social · 4 pts · 80d
This is the way all corporations work.
Step 1 requires creating a product or service that is better than other options. Step 2 Enshittify the product or service. Bonus points for increasing the price at the same time. Step 3 Either sue or aquire competition to maintain market dominance.
Repeat steps 2 and 3 until the wheels fall off.
Intel did this until the wheels fell off. Then AMD took the top spot. Now AMD will do it until it all falls apart. Then Intel or perhaps a newcomer will regain top spot.
ironycanal@lemmy.dbzer0.com · 2 pts · 80d
Nvidia might just survive.