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Message-Id: <1412244548-27617-1-git-send-email-joro@8bytes.org> Date: Thu, 2 Oct 2014 12:09:06 +0200 From: Joerg Roedel <joro@...tes.org> To: iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org Cc: David Woodhouse <dwmw2@...radead.org>, Jiang Liu <jiang.liu@...ux.intel.com>, jroedel@...e.de, joro@...tes.org Subject: [PATCH 0/2] iommu/vt-d: Make RMRR matching compatible with older kernels Hi, here is a patch-set to make RMRR matching in the Intel IOMMU driver compatible with older kernels. This is needed because some BIOS vendors build RMRR entries to work with older kernels, but that will break on newer ones that implement the correct PCI device scope matching scheme defined in the VT-d specification. Make the current Intel IOMMU driver work with the old RMRR entries too. These patches have been tested in an affected system and fix the issue seen there (newer kernel did not setup RMRR entries for a plugged in device). Regards, Joerg Joerg Roedel (2): iommu/vt-d: Store bus information in RMRR PCI device path iommu/vt-d: Work around broken RMRR firmware entries drivers/iommu/dmar.c | 23 ++++++++++++++++++++--- include/linux/dmar.h | 8 +++++++- 2 files changed, 27 insertions(+), 4 deletions(-) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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