Re: [ANNOUNCE] linuxbios utilities.

Alexander Amelkin  writes:
> Hello Eric,
>
> Wednesday, April 9, 2003, 11:34:26 PM, you wrote:
>
> EWB> cmos_util which changes the few LinuxBIOS settings from Linux.
>
> Do we really use the CMOS already? What do we store there?

There are several other people who could have answered and 
this is a question of general interest so back to the list, with this.

I am frequently very busy so I do not appreciate LinuxBIOS mail
directed exclusively at me.

Yes.  For normal vs fallback.  For serial port baud rates,
for the boot order that etherboot should use.

Check out the appropriate cmos.layout files.

Eric

[ANNOUNCE] linuxbios utilities.

[klos]

Hi eric,
    I find cmos_util can change the value in option_table that was
loaded with irq_table together, am I right?
    but I cannot find the place to use the option_table, how we
control the fallback or normal image? Or cmos_util change the cmos value
indeed?

-----Original Message-----
From: [e-mail]
[mailto:[e-mail]] On Behalf Of Eric W. Biederman
Sent: 2003年4月10日 7:52
To: Alexander Amelkin
Cc: LinuxBIOS
Subject: Re: [ANNOUNCE] linuxbios utilities.

Alexander Amelkin  writes:
> Hello Eric,
>
> Wednesday, April 9, 2003, 11:34:26 PM, you wrote:
>
> EWB> cmos_util which changes the few LinuxBIOS settings from Linux.
>
> Do we really use the CMOS already? What do we store there?

There are several other people who could have answered and 
this is a question of general interest so back to the list, with this.

I am frequently very busy so I do not appreciate LinuxBIOS mail
directed exclusively at me.

Yes.  For normal vs fallback.  For serial port baud rates,
for the boot order that etherboot should use.

Check out the appropriate cmos.layout files.

Eric

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http://www.clustermatic.org/mailman/listinfo/linuxbios

[ANNOUNCE] linuxbios utilities.

"klos"  writes:
> Hi eric,
>    I find cmos_util can change the value in option_table that was
> loaded with irq_table together, am I right?
>    but I cannot find the place to use the option_table, how we
> control the fallback or normal image? Or cmos_util change the cmos value
> indeed?

option_table describes the layout of options in the cmos.
cmos_util changes options in the cmos described by option_table.

Eric

[ANNOUNCE] linuxbios utilities.

[ron minnich]

for the plan9 nodes another use we made of CMOS was to store 
authentication data. That was pretty neat.

ron

[ANNOUNCE] linuxbios utilities.

[Adam Agnew]

Is there a map of bits of the cmos used?

In ADLO we set a few bits because the Bochs BIOS it built to rely on an
AMI cmos for settings.

On Wed, 9 Apr 2003, ron minnich wrote:
> for the plan9 nodes another use we made of CMOS was to store
> authentication data. That was pretty neat.
>
> ron
>
> Linuxbios mailing list
> [e-mail]
> http://www.clustermatic.org/mailman/listinfo/linuxbios

[ANNOUNCE] linuxbios utilities.

Adam Agnew  writes:
> Is there a map of bits of the cmos used?

Yes.  It tends to leave out things like Ron's uses but what
LinuxBIOS and etherboot use are in the map.  They cmos.layout files
are the source of the map, and the map is provided in the LinuxBIOS
table.
> In ADLO we set a few bits because the Bochs BIOS it built to rely on an
> AMI cmos for settings.

You probably want to take a look at how either etherboot or cmos_util
get the map.  We can probably included your Bochs BIOS settings as
well.  So far I have steered clear of legacy locations to reduce
the chance of conflicts with hard codes but ultimately it is better
to put everyone into the map.

A big thing on the todo list is to figure out how to move some of
the settings into the Rom chip.  Very useful for board without a CMOS
battery or at least without a reliable one.

Eric