Re: [Qemu-devel] [PATCH v3 0/3] pc-bios/s390-ccw: Some few network boot improvements

[Viktor VM Mihajlovski]

On 25.04.2018 11:08, Thomas Huth wrote:
> Note: I've decided to removed the pxelinux.cfg patches from this series
> for now, since full pxelinux support requires to parse some additional
> DHCP options (see https://tools.ietf.org/html/rfc5071), and for this, the
> SLOF libnet code needs to be changed first. So I guess I first have to
> implement pxelinux.cfg support for PPC, too, which will likely take a
> little bit longer...
> Thus to keep this series short and reviewable, and to avoid that the other
> patches bit-rot on my hard disk, I've now only included the patches that
> are not related to pxelinux.cfg.
Makes sense to me.
> 
> The first patch is just a minor code refactoring which should not have
> any visible impact, but makes the following patches easier.
> 
> The second patch makes sure that we leave the machine in a sane state
> before jumping into the Linux kernel - i.e. the netboot firmware now
> resets the machine with diag308, too, just like the main s390-ccw
> is doing it already.
> 
> Patch 3 adds support for loading kernels via .INS configuration files.
> You can find these .INS config files on ISO images, so with this patch,
> it should be possible to boot if the TFTP server is configured to use
> the contents of such an ISO image.
I will try out this insfile support but probably won't be able to do
that before next week.
> 
> Thomas Huth (3):
>   pc-bios/s390-ccw/net: Split up net_load() into init, load and uninit
>     parts
>   pc-bios/s390-ccw/net: Use diag308 to reset machine before jumping to
>     the OS
>   pc-bios/s390-ccw/net: Add support for .INS config files
> 
>  pc-bios/s390-ccw/Makefile    |   4 +-
>  pc-bios/s390-ccw/bootmap.c   |  63 +---------------
>  pc-bios/s390-ccw/bootmap.h   |   4 --
>  pc-bios/s390-ccw/jump2ipl.c  |  81 +++++++++++++++++++++
>  pc-bios/s390-ccw/netboot.mak |   3 +-
>  pc-bios/s390-ccw/netmain.c   | 168 
> +++++++++++++++++++++++++++++++++++--------
>  pc-bios/s390-ccw/s390-ccw.h  |   4 ++
>  7 files changed, 230 insertions(+), 97 deletions(-)
>  create mode 100644 pc-bios/s390-ccw/jump2ipl.c
> 


-- 
Regards,
  Viktor Mihajlovski