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You are describing specifically "embedded junk" (which includes the M1, sorry Apple) not literally "anything ARM based". SBSA-compliant platforms boot with UEFI
by floatboth 6y ago
You are describing specifically "embedded junk" (which includes the M1, sorry Apple) not literally "anything ARM based". SBSA-compliant platforms boot with UEFI+ACPI, using fully generic DSDT descriptions for PCIe (ECAM) and USB (XHCI). Speaking of GPUs, quite common for them to have QEMU in firmware to run the x86-compiled EFI GOP driver straight from the card's ROM and get video output before the OS.
- heavyset_go 6y agoIt's cheaper to use custom ARM boards than it is to build hardware that is SBSA-compliant, so consumers can expect that most, if not all, of their ARM devices are not SBSA-compliant.