[Buildroot] qemu_ppc_g3beige_defconfig kernel image type (with patch)

[Buildroot] qemu_ppc_g3beige_defconfig kernel image type (with patch)

[Bjørn Forsman]

Hi all,

I'm testing the new qemu_*_defconfig files (brilliant stuff!) but I think I have
found a bug:

qemu_ppc_g3beige_defconfig defines BR2_LINUX_KERNEL_VMLINUX=y, but after
configuration the .config file ends up with BR2_LINUX_KERNEL_UIMAGE=y.

According to linux/Config.in it seems like BR2_LINUX_KERNEL_VMLINUX is only
supported on MIPS. I've attached a patch that changes the kernel format
from vmlinux to zImage, as uImage is no good with QEMU :-)

Best regards,
Bj?rn Forsman
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[Buildroot] qemu_ppc_g3beige_defconfig kernel image type (with patch)

[Bjørn Forsman]

Hi,

2010/12/19 Bj?rn Forsman <bjorn.forsman@gmail.com>:
> Hi all,
>
> I'm testing the new qemu_*_defconfig files (brilliant stuff!) but I think I have
> found a bug:
>
> qemu_ppc_g3beige_defconfig defines BR2_LINUX_KERNEL_VMLINUX=y, but after
> configuration the .config file ends up with BR2_LINUX_KERNEL_UIMAGE=y.
>
> According to linux/Config.in it seems like BR2_LINUX_KERNEL_VMLINUX is only
> supported on MIPS. I've attached a patch that changes the kernel format
> from vmlinux to zImage, as uImage is no good with QEMU :-)

I just realized that QEMU handles uImage very well, but I think the
patch is still valid.

Best regards,
Bj?rn Forsman

[Buildroot] qemu_ppc_g3beige_defconfig kernel image type (with patch)

[Thomas Petazzoni]

On Sun, 19 Dec 2010 17:04:05 +0100
Bj?rn Forsman <bjorn.forsman@gmail.com> wrote:

> I just realized that QEMU handles uImage very well, but I think the
> patch is still valid.

Hum, zImage wasn't working for me on Qemu PowerPC. I'll re-test.

Regards,

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com

[Buildroot] qemu_ppc_g3beige_defconfig kernel image type (with patch)

[Bjørn Forsman]

Hi,

On 20 December 2010 08:58, Thomas Petazzoni
<thomas.petazzoni@free-electrons.com> wrote:
> On Sun, 19 Dec 2010 17:04:05 +0100
> Bj?rn Forsman <bjorn.forsman@gmail.com> wrote:
>
>> I just realized that QEMU handles uImage very well, but I think the
>> patch is still valid.
>
> Hum, zImage wasn't working for me on Qemu PowerPC. I'll re-test.

Well, I haven't actually tested the zImage/uImage on PPC myself because
qemu-system-ppc seems broken on Ubuntu 10.10:

  qemu: hardware error: qemu: could not load PowerPC bios 'openbios-ppc'

So my patch may be wrong and linux/Config.in should allow vmlinux for
PPC instead. I don't know.
The point is that the current defconfig file gets overridden. And that
should get fixed, one way or the other.

Best regards,
Bj?rn Forsman