Re: [Qemu-devel] Status of SH4 support in repository

[Rob Landley <rob@landley.net>]

On Friday 13 February 2009 08:27:14 Shin-ichiro KAWASAKI wrote:
> Rob Landley wrote:
> > On Wednesday 11 February 2009 06:28:05 Shin-ichiro KAWASAKI wrote:
> >> Kristoffer Ericson wrote:
> >>> On Wed, 11 Feb 2009 01:53:45 +0900
> >>>
> >>> Shin-ichiro KAWASAKI <kawasaki@juno.dti.ne.jp> wrote:
> >>>> Hi, Kristoffer.
> >>>>
> >>>> Kristoffer Ericson wrote:
> >>>>> Greetings,
> >>>>>
> >>>>> Just interested in an update of the current status. I built a fresh
> >>>>> qemu from the repository today and Im currently I get no output.
> >>>>
> >>>> I do not catch 'no output' mean.  Could you explain it more?
> >>>>
> >>>> FYI, here's the log how I built qemu-sh at Feb. 6th.
> >>>>   http://www.assembla.com/wiki/show/qemu-sh4/BuildingEnvironment
> >>>
> >>> My mistake I did something wrong when I built it earlier, currently
> >>> it works somewhat. What doesnt work is keyboard,mouse and booting
> >>> from image file (seems like to bootstring isnt being aknowledged).
> >>
> >> Current qemu sh4 system emulation does not support either usb host
> >> or kernel boot command line.  You still need to apply some patches
> >> to use those features.
> >>
> >> Please check qemu-sh patch staging repository, which holds patches
> >> for qemu-sh. README in it explains how to apply.
> >>   http://git.kernel.org/?p=virt/qemu/lethal/qemu-sh.git;a=summary
> >
> > My blocker is the lack of a working -append.  You have a git tree for a
> > collection of 5 patches, which then wants to invoke "quilt" to apply
> > them. (Seems like overkill.)
> >
> > At a guess, this seems like the patch that implements it is
> > staging/sh4-r2d-update-pci-usb-and-kernel-management.patch
> >
> >> To apply all them, you need to role back qemu to rev 6215, for now.
> >
> > No you don't, you just need a chainsaw and some duct tape...
> >
> >> The patch for usb host is already posted to qemu-ml.  But I guess
> >> patch for kernel boot command line for r2d is not yet posted.
> >
> > I adjusted the above patch to apply to current qemu svn, and attached the
> > result, but it didn't make -append work.  It's still using the hardwired
> > one.
> >
> > Any suggestions?  (Do I need to look at the other patches?  This one
> > looked like it was _trying_ to fix the problem...)
>
> Yoshii-san already turned on the chainsaw the day before yeterday. :)
>   http://lists.gnu.org/archive/html/qemu-devel/2009-02/msg00727.html
>
> And I guess, -append option is valid only if the kernel zImage does
> not contain built in kernel arguments

Yup, that fixed it.

Wow sh4 emulation is slow.  But working for me now. ;)

Thanks,

Rob