[coreboot-gerrit] Patch merged into coreboot/master: nb/intel/gm45: Fix DMAR table - IOMMU advertisement for ME interfaces

gerrit at coreboot.org gerrit at coreboot.org
Fri Sep 9 17:11:48 CEST 2016


the following patch was just integrated into master:
commit 88af372fe8b4feb683c9153ab1e79df76cff754b
Author: Damien Zammit <damien at zamaudio.com>
Date:   Sat Aug 27 00:35:48 2016 +1000

    nb/intel/gm45: Fix DMAR table - IOMMU advertisement for ME interfaces
    
    Previously the ME PCI interface (HECI) was being reported as present in
    the DMAR ACPI table even when ME firmware was missing or the PCI device
    was hidden and HECI would be unresponsive.
    Now we check via the PCI config space itself to verify if the HECI
    is present or not.
    
    Note that this test could fail if ME firmware is present but
    HECI is disabled in devicetree, because it would not advertise that the HECI
    exists even though there is a running ME.  Perhaps this behaviour is desirable
    because in this case you won't see the HECI in the lspci tree anyway.
    
    Change-Id: Ib692d476d85236b4886ecf3d6e6814229f441de0
    Signed-off-by: Damien Zammit <damien at zamaudio.com>
    Reviewed-on: https://review.coreboot.org/16330
    Tested-by: build bot (Jenkins)
    Reviewed-by: Swift Geek <swiftgeek at gmail.com>
    Reviewed-by: Nico Huber <nico.h at gmx.de>


See https://review.coreboot.org/16330 for details.

-gerrit



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