... although ... there are cases where UEFI works on hardware where BIOS will
not. This is where I clarify my simple pre-coffee response :)
For practical purposes, any x86/x64 platform can work with BIOS or UEFI. There
are Intel Architecture motherboards in the market which have a legacy BIOS ROM
image and UEFI ROM image (same board, two different versions of the firmware).
For the most part, new designs use UEFI with some legacy BIOS compatibility
layer (CSM).
But BIOS is centered around legacy PC design concepts, so it wouldn't work on a
platform that doesn't support 16-bit x86 instructions. A good example is VGA,
which has I/O & interrupt requirements that require a legacy PC design. UEFI
works on ARM & Itanium, but legacy BIOS doesn't.
Adopting UEFI means future designs can drop these legacy PC design
restrictions, but it's not a requirement.
Thanks ... br
---
Brian Richardson -- [email protected] -- Twitter: intel_brian
From: Richardson, Brian [mailto:[email protected]]
Sent: Thursday, December 27, 2012 8:46 AM
To: [email protected]
Subject: Re: [edk2] UEFI Hardware
There aren't any hardware differences related to UEFI versus BIOS.
Thanks ... br
---
Brian Richardson --
[email protected]<mailto:[email protected]> -- Twitter:
intel_brian
From: Rafael Machado [mailto:[email protected]]
Sent: Thursday, December 27, 2012 6:55 AM
To: edk2-devel
Subject: [edk2] UEFI Hardware
Hi everyone
I've searched something about the hardware differences between an old bios
motherboard and a new UEFI motherboard, but didn't find anything.
Does anybody know if is there any hardware difference between the motherboards
or any hardware specification for uefi compatible boards ?
Thanks and Regards
Rafael R. Machado
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