Messages in this thread | | | From | Bjorn Helgaas <> | Subject | Re: [PATCH -v2] pci: clear bridge resource size if BIOS assign bad one | Date | Wed, 9 Jun 2010 17:30:31 -0600 |
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On Tuesday, June 08, 2010 05:36:33 pm Yinghai Lu wrote: > On 06/08/2010 03:48 PM, Bjorn Helgaas wrote: > > On Tuesday, June 08, 2010 03:43:50 pm Jesse Barnes wrote: > > > > In this case, the aperture *size* from the BIOS is actually OK, but > > the beginning of the aperture overlaps system memory. With Yinghai's > > patch, we reduce the size and move the start. Windows was able to > > just move the start of the aperture and preserve the original > > 0x20000000 size (but I think it had to move something else out of > > the way). > > are you sure? that looks more aggressive.
I don't have the machine and can't be 100% sure, but based on what Yannic reported here: https://bugzilla.kernel.org/show_bug.cgi?id=16009#c11, it looks like Windows moved that aperture.
I haven't used it myself, but possibly a program like SIV (http://rh-software.com/) would give more detailed information about what Windows is doing.
Bjorn
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