Re: [LinuxBIOS] flash_rom on Nvidia CK804

[Lu, Yinghai]

These should be DMI info ....,

You can backup it and restore it late.

YH

[LinuxBIOS] flash_rom on Nvidia CK804

[Carl-Daniel Hailfinger]

Lu, Yinghai schrieb:
> These should be DMI info ....,

The later section (2.2 kb) really are DMI info.

But I strongly doubt that the missing 128 kb in the middle are
all DMI info. Especially the fact that here flash_rom reads
a consecutive block of 0xff while the vendor BIOS image has
real contents seems the wrong way. If it were DMI info, the
vendor BIOS image should have the 0xff and not flash_rom.
> You can backup it and restore it late.

Thanks for the hint.

Regards,
Carl-Daniel

[LinuxBIOS] flash_rom on Nvidia CK804

[Stefan Reinauer]

* Carl-Daniel Hailfinger  [060412 06:17]:
> Lu, Yinghai schrieb:
> > These should be DMI info ....,
>
> The later section (2.2 kb) really are DMI info.
>
> But I strongly doubt that the missing 128 kb in the middle are
> all DMI info. Especially the fact that here flash_rom reads
> a consecutive block of 0xff while the vendor BIOS image has
> real contents seems the wrong way. If it were DMI info, the
> vendor BIOS image should have the 0xff and not flash_rom.

What does that content look like?

Stefan

[LinuxBIOS] flash_rom on Nvidia CK804

[Carl-Daniel Hailfinger]

Stefan Reinauer schrieb:
> Carl-Daniel Hailfinger  [060412 06:17]:
> > Lu, Yinghai schrieb:
> > > These should be DMI info ....,
> >
> > The later section (2.2 kb) really are DMI info.
> >
> > But I strongly doubt that the missing 128 kb in the middle are
> > all DMI info. Especially the fact that here flash_rom reads
> > a consecutive block of 0xff while the vendor BIOS image has
> > real contents seems the wrong way. If it were DMI info, the
> > vendor BIOS image should have the 0xff and not flash_rom.
>
> What does that content look like?

Looks like valid x86 instructions.

The following archive has both BIOS images (the extracted one and
the vendor-suplied one) inside.
http://www-ti.informatik.uni-tuebingen.de/~hailfing/biosimages.tar.bz2

Regards,
Carl-Daniel

[LinuxBIOS] flash_rom on Nvidia CK804

[Carl-Daniel Hailfinger]

Carl-Daniel Hailfinger wrote:
> Stefan Reinauer wrote:
> > Carl-Daniel Hailfinger  [060412 06:17]:
> > > Lu, Yinghai wrote:
> > > > These should be DMI info ....,
> > >
> > > The later section (2.2 kb) really are DMI info.
> > >
> > > But I strongly doubt that the missing 128 kb in the middle are
> > > all DMI info. Especially the fact that here flash_rom reads
> > > a consecutive block of 0xff while the vendor BIOS image has
> > > real contents seems the wrong way. If it were DMI info, the
> > > vendor BIOS image should have the 0xff and not flash_rom.
> >
> > What does that content look like?
>
> Looks like valid x86 instructions.

I tested with awdflash and the readout of awdflash does not exhibit
this bug. Any idea how to fix it in flash_rom?

Regards,
Carl-Daniel