[my123]

You'll have EL2 on Snapdragon X Elite.

If it's using the design that I prototyped while at Qualcomm, it's jumping to EL2 at ExitBootServices when the boot to Linux at EL2 option is enabled.

Didn't look at a release firmware yet to see what was the final impl, but was told that it did ship :)

[sidkshatriya]

The boot flow diagram on the article indicates the user gets dropped off into EL1 and not EL2, sadly though. The article is from Qualcomm so I would assume this the current official situation.

[my123]

Out of the box that's true.

The system firmware will ship with 3 boot modes selectable via the setup interface:

- Windows (this one has the Windows tcblauncher escalated to EL2 through Secure Launch)

- Linux (this one stays at EL1)

- Linux w/ KVM (which jumps to EL2 before kernel handover)

[sidkshatriya]

This would be wonderful. However one would need to verify when these laptops actually start shipping. Let’s hope for the best !

[moondev]

Is this a "arm system ready " uefi firmware? Curious if you tested ESXi for aarch64 edition.

[my123]

Arm SystemReady SR/ES assumes sane ACPI tables. That's something that Snapdragon X (1st-gen) very much doesn't have. The ACPI tables present there are pretty much only usable for Windows if you want full functionality.

Yeah ESXi-Arm is bootable, but a number of patches were required.