Re: [RFC PATCH 0/5] ppc/Pegasos2 VOF

[Alexey Kardashevskiy]

On 6/9/21 20:28, BALATON Zoltan wrote:
> On Wed, 9 Jun 2021, Alexey Kardashevskiy wrote:
> > On 6/7/21 01:46, BALATON Zoltan wrote:
> > > Based-on: <20210520090557.435689-1-aik@ozlabs.ru>
> > > ^ That is v20 of Alexey's VOF patch
> > >
> > > Hello,
> > >
> > > Posting these for early review now. I plan to rebase on the next VOF
> > > patch that hopefully fixes those points that I had to circumvent in
> > > patch 1 for now. I've reported these before but now all of those that
> > > are needed for pegasos2 are in one place. Other points I've reported
> > > could be clean ups but not sttictly needed.
> > >
> > > With this series on top of VOF v20 I can now boot Linux and MorphOS on
> > > pegasos2 without needing a firmware blob so I hope this is enough to
> > > get this board in 6.1 and also have it enabled so users can start
> > > using it. That means that VOF will also be merged by then. This now
> > > gives VOF another use case that may help it getting finished.
> > >
> > > I've also updated my development tree with this series here:
> > >
> > > https://osdn.net/projects/qmiga/scm/git/qemu/tree/pegasos2/
> > >
> > > Please review so I can do any needed changes together with the rebase
> > > on next VOF patch so we don't miss 6.1 this time.
> >
> >
> > It would help if you provided the disk or/and kernel or/and 
> > initramdisk images and the example command line to give this a try. 
> > And said a few words who is this Pegasos2 guy :) The series looks ok 
> > to me otherwise. Thanks,
>
> These were in the original series adding this board:
>
> https://patchew.org/QEMU/cover.1616680239.git.balaton@eik.bme.hu/


Ah ok. Thanks!


> For testing I've used the kernel from debian 8.11.0 powerpc iso which is 
> known to work on real hardware and MorphOS demo iso available from 
> www.morphos-team.net. For debian look into install/pegasos to find the 
> right vmlinuz-chrp.initrd kernel, for MorphOS use the boot.img from root 
> of the iso as -kernel.
>
> What's still missing is some rtas functions like get-time-of-day. Are 
> these any kind of standard and is there a doc about their parameters and 
> returns or I'll heave to find out from kernel sources? I plan to add 
> these later but not needed to get it boot.

pseries guests use what the LoPAPR spec (derived from sPAPR - "server 
PAPR") describes:

https://openpowerfoundation.org/?resource_lib=linux-on-power-architecture-platform-reference


--
Alexey