How to use qemu vfat feature with RTEMS and the powerPC PREP bsp

[Joel Sherrill]

On Mar 8, 2018 8:39 AM, "Éric Tremblay" <e.tremblay at axis-canada.com> wrote:

Thanks for your feedback Chris.

I checked the source file used for the PREP bsp and there are no IDE / ATA
driver provided which I think is required in order to have it working.  The
PC bsp has an IDE driver defined so that would explain why it is functional.

I will try to see if I can add an IDE driver for the qemuprep bsp...unless
someone tells me that it should work out-of-the-box with qemuprep bsp.


I'm not going to tell you that it will work out if the box. I am just going
to suggest that you double check what ide support this qemu configuration
has.

--joel



On Thu, Mar 8, 2018 at 1:30 AM, Chris Johns <chrisj at rtems.org> wrote:

> On 8/3/18 12:55 am, Éric Tremblay wrote:
> > Hi,
> > I read that it is possible to make a folder available to the guest
> system using
> > the vfat feature of Qemu but can't get it to work.
> >
> > I am using qemu-system-ppc with PREP (-M prep)  (qemu v2.5.0)
> > I am using rtems 4.11.3
> >
> > I am currently experiencing with the 'qemu_vfat' example but can't get
> passed
> > the 'rtems_bdpart_register_from_disk("/dev/hda")' which always return
> INVALID_NAME.
> >
> > I am wondering if the problem is with the command line I am using, I
> tried with:
> >
> > -drive file=fat:rw:./
> >
> > or
> >
> > -hda fat:./
> >
> > In both cases I see that there is a vfat message displayed:
> >
> > vvfat ./ chs 1024,16,63
> >
> > How can I get it to work, does the bsp need to have a IDE driver?
>
> Yes. I am not sure which types are supported these days.
>
> >  Is this
> > feature supported with the qemuprep ?  If not how can I make it work or
> what are
> > my options ?  using a shared memory to share data between the host and
> guest ?
>
> I have had it working many years ago with the PC BSP. There are limits on
> the
> number of files that can be handled.
>
> Chris
>


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