Date: Tue, 24 Mar 2009 18:10:22 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/amd64/pci pci_cfgreg.c src/sys/i386/pci pci_cfgreg.c Message-ID: <200903241811.n2OIBwJd072619@repoman.freebsd.org>
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jhb 2009-03-24 18:10:22 UTC
FreeBSD src repository
Modified files:
sys/amd64/pci pci_cfgreg.c
sys/i386/pci pci_cfgreg.c
Log:
SVN rev 190386 on 2009-03-24 18:10:22Z by jhb
Fall back to using configuration type 1 accesses for PCI config requests if
the requested PCI bus falls outside of the bus range given in the ACPI
MCFG table. Several BIOSes seem to not include all of the PCI busses in
systems in their MCFG tables. It maybe that the BIOS is simply buggy and
does support all the busses, but it is more conservative to just fall back
to the old method unless it is certain that memory accesses will work.
Revision Changes Path
1.114 +2 -0 src/sys/amd64/pci/pci_cfgreg.c
1.133 +2 -0 src/sys/i386/pci/pci_cfgreg.c
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