yummycandy
Commodore
- Registriert
- März 2005
- Beiträge
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PC World schreibt dazu:
https://www.pcworld.com/article/356...rbolt-4-spec-debuting-in-pcs-in-the-fall.html
https://www.pcworld.com/article/356...rbolt-4-spec-debuting-in-pcs-in-the-fall.html
Can AMD use Thunderbolt 4?
There’s one final wrinkle. One of the requirements for Thunderbolt 4 is that a laptop vendor must support what’s known as Intel VT-d based direct memory access (DMA), a security measure that protects the system by preventing direct memory access to preassigned domains. Because VT-d based direct memory access (DMA) is strictly an Intel technology, however, this requirement seemingly creates a barrier for AMD.
If nothing else, the rival chipmakers seem aligned in their desire to skirt the issue. “I wouldn’t read it as it’s only Intel, because of VT-d,” Ziller said. “If [at AMD] there was an equivalent technology that supports DMA protection, that supports prevention against physical attacks, then that would be the requirement.” Ziller deferred to AMD as to what that technology could be, and he also declined to say whether Intel would license the VT-d technology to competitors.
...
“We do not find much demand from OEMs for Thunderbolt support,” an AMD representative said in an email when asked by PCWorld, before Intel’s announcement, why there had been few, if any, Ryzen-based notebooks with Thunderbolt in them to date. “There’s no technical reason preventing AMD from supporting Thunderbolt. A discrete Thunderbolt chipset can connect to the CPU via PCI [Express].”