On Thu, Dec 13, 2012 at 08:42:02AM +0100, Paolo Bonzini wrote: > Commit 4540409 (acpi: LNKS is not needed, 2012-08-07) removed LNKS because > it basically worked by chance: _CRS returns something else then one of the > possible resources from _PRS, _DIS would not really disable the interrupt, > and there was no _SRS method. It just happened to work because all OSes > have some kind of special-casing for SCI. > > Unfortunately, the code after the patch is also against the spec, and it > breaks FreeBSD because it treats IRQ 9 polarity as active low without > the Interrupt() entry. Actually, numeric _PRT entries are handled the > same in Linux and FreeBSD (as active-low). However, under Linux it just > happens to trigger another special casing of SCI which sets SCI up from > its override entry in the MADT, ignoring the DSDT completely. > > This patch adds back the LNKS, but without using the PIIX register for > LNKA in its methods.
Thanks. I committed this change, along with a follow up patch to use the prt_slot() macro. -Kevin _______________________________________________ SeaBIOS mailing list [email protected] http://www.seabios.org/mailman/listinfo/seabios
