Intel Continues Finalizing UEFI Unaccepted Memory Support For Linux

[Michael]

Does Coreboot also have this problem or is it specific to UEFI?

E

Deferring the memory acceptance until needed isn't really a 'problem' but a feature. But as far as I recall, I don't recall any Coreboot patches yet about memory acceptance handling.

[gavron]

Does Coreboot also have this problem or is it specific to UEFI?

E

[phoronix]

Phoronix: Intel Continues Finalizing UEFI Unaccepted Memory Support For Linux

With Intel TDX and AMD SEV-SNP for better securing virtual machines on the mainline Linux kernel, memory is accepted/initialized immediately at boot time by the VMs although the capability exists to have "unaccepted memory" where that memory is only dealt with by the VMs later on or on an as-needed basis. For two years now Intel engineers have been working on this unaccepted memory support and this week posted their thirteenth iteration of these fundamental Linux kernel patches...

https://www.phoronix.com/news/UEFI-Unaccepted-Memory-v13