Re: [PATCH] support PCI MCFG space on Intel i915 bridges

From: Robert Hancock
Date: Tue May 01 2007 - 20:01:03 EST


Jesse Barnes wrote:
On Monday, April 30, 2007 4:20 pm Robert Hancock wrote:
Right, but you patch should obsolete this stuff anyway. I'll test
it out in the next few days.
We likely still want this chipset-specific support, it will catch the
case where the MCFG table lists a location which is reserved in ACPI
but the chipset was actually programmed to a different location
entirely, which I seem to remember someone mentioning was actually
the case on some boards..

Yeah, I suppose that's true. So maybe your new checking code should leverage the stuff in mmconfig-shared.c to check against the register values like Olivier mentioned?

The patch I sent takes the MCFG address from the chipset registers for known chipsets, or the ACPI MCFG table otherwise. Either way, it will verify that the memory range is reserved in ACPI.

--
Robert Hancock Saskatoon, SK, Canada
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Home Page: http://www.roberthancock.com/

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