Re: [linux-kernel] Re: [PATCH] x86: provide a DMI based port 0x80 I/Odelay override.

From: Robert Hancock
Date: Wed Jan 09 2008 - 19:39:11 EST


David P. Reed wrote:
Christer Weinigel wrote:

Did I miss anyting?

Nothing that seems *crucial* going forward for Linux. The fate of
"legacy machines" is really important to get right.

I have a small suggestion in mind that might be helpful in the future:
the "motherboard resources" discovered as PNP0C02 devices in their _CRS
settings in ACPI during ACPI PnP startup should be reserved (or
checked), and any drivers that still use port 80 implicitly should
reserve that port.

I agree. In this case the BIOS on these laptops is trying to tell us "port 80 is used for our purposes, do not touch it". We should be listening.

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Robert Hancock Saskatoon, SK, Canada
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