Re: pci-e config register modification in grub

[Vladimir 'phcoder' Serbinenko]

Vladimir 'phcoder' Serbinenko wrote:
> Nando wrote:
>   
>> Hi everyone,
>>
>> Wondering if grub2 can have an additional module added to do various
>> pci-e Configuration Register fixups/modifications before launching
>> into XP/Win7/Linux. Specifically I require:
>>
>>     
For Linux I would recommend to contact developpers of corresponding
kernel subsystem - it will help them to improve driver. Further
discussion is in relation to MS stuff.
>> 1/ ability to modify PCI Bridge Configuration Registers for DIY ViDock
>> project <http://forum.notebookreview.com/showthread.php?p=5324240> to
>> allow the video card to work [ current workaround is boot DOS, use
>> pcitool to do the mod, then use grub4dos to chainload the OS ]
>>
>> 2/ ability to restore a mini pci-e port's Extended PCI Configuration
>> registers config to reverse HP bios whitelisting of wifi cards (See
>> bottom of HP Mini pci-e wifi bios thread
>> <http://www.wimsbios.com/phpBB2/topic9388-105.html>. No current tool
>> can do this that I've found, with the DOS pcitool extending only to
>> the 00-FF pci-e configuration registers, not the extended registers.
>>     
> I'm not familiar with pci-e and don't know how much additional code
> would be required considering already existing pci code. Considering
> windows share "chainloader" command with other OSes too one could add a
> command "winfix" which will autodetect and do all the fixes necessary
> for windows and then 30_os_prober.in can be modified to use this. This
> way user doesn't need manual configuration. If autodetecting is too
> cumbersome one could have separate commands in grub to do exactly the
> fix you need. Could you make the patch and send it here. If you need to
> import code from another project discuss it here first - not all code is
> suitable for grub
>   
>> I'm running Ubuntu 9.04 with grub as the bootloader. Can these
>> features be added to grub via say the menu.lst file as well as some
>> config file that can store the dump for (2) above??
>>
>> Nando
>> ------------------------------------------------------------------------
>>
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>>   
>>     
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