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There are standards like the Arm Server Base System Architecture but companies don't have to follow it. Most of the ARM servers are custom things for big datac

There are standards like the Arm Server Base System Architecture but companies don't have to follow it. Most of the ARM servers are custom things for big datacenters. As you said the smaller systems like phones and other embedded systems have their own boot systems and memory layout etc. https://en.wikipedia.org/wiki/Server_Base_System_Architecture https://en.wikipedia.org/wiki/Server_Base_System_Architectur... https://developer.arm.com/documentation/den0029/latest https://developer.arm.com/documentation/den0029/latest

floatboth 5y ago
In the server space, there is no good reason to do weird unusual things → even e.g. the "custom" AWS hardware is as standards-compliant as possible (if you look at the ACPI tables on an a1.metal instance, you'll only find an AMZNxxxx device for the PCIe host controller, and that's only because Synopsys Designware IP sucks^W has a stupid hardware bug related to filtering that requires a little workaround quirk)