today's leftovers
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Intel says that both Intel and AMD CPUs can update Arc GPU firmware
Intel told Ars Technica that it is possible for both Intel and AMD-based platforms to update Arc GPU firmware, and that Intel's Management Engine wasn't actually required for firmware updates.
"Intel Arc products do not require the host CSME to update Arc firmware," an Intel spokesperson told Ars. "Firmware updates will work on both AMD and Intel platforms. Arc products have their own Graphics Security Control for firmware updates and leverage existing Intel technology like the HECI interface protocol to implement the firmware update flow."
An update from Richard Hughes, the developer who originally discovered the limitation, noted that an "HECI-using GSC device shows up in Windows" when an Arc GPU is installed, which ought to allow updates on x86 devices. We double checked on a Windows PC with an Arc GPU installed and did indeed see Intel's GSC firmware interface listed in the device manager, which ought to work the same way on both Intel and AMD platforms since it's a part of the GPU itself.
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You’re Invited: State of the Onion 2022
This year we will be doing things a bit differently than we have in the past. Instead of having all the presentations happening on the same day, we are organizing two streams on two different days, one for Tor Project’s teams and another for our community. So please make sure to save the date for both events!