On Sat, Feb 27, 2021, at 8:39 PM, Warner Losh wrote:
> > 32-bit Arm can boot via EFI. Just mips* and powerpc*.
> 
> There was some rumblings of little endian powerpc64 efi, but I don't 
> think it's ready...

I've never heard of such things. PAPR/LoPAPR/LoPAR (pseries) is specified as an 
OpenFirmware platform, and I don't see that changing in the future given the 
way it's baked into the spec. And PowerNV is a minimal-runtime-services 
platform where the runtime abstraction (OPAL) calls don't include any sort of 
way to access disk devices.

Do you mean alternative firmware for PowerNV? I've heard people talking on and 
off about coreboot, but I don't see that becoming mainstream over the petitboot 
skiroot payload.

I don't see the pseries virtualization requirements changing away from 
OpenFirmware in the future either, given the OpenFirmware requirement has been 
a constant all the way back to CHRP.

> 
> Yea, we have long since switched our preferred boot on arm to EFI... 
> though we don't have installer images for 32bit arm, which is this 
> runs... so it's needed for correctness, but not a practical 
> difference...
> 
> Warner

-- 
  Brandon Bergren
  bdra...@freebsd.org
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