Messages in this thread | | | From | Joerg Roedel <> | Subject | [PATCH 00/19] Fix Intel IOMMU breakage in kdump kernel | Date | Sat, 13 Jun 2015 08:47:08 +0200 |
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Hi,
as David Woodhouse pointed out, my fixes and cleanups for the original patch-set turned out to be a complete rewrite. So to have a cleaner history of the feature and to make backporting easier, here is a rewrite of my changes based on v4.1-rc7.
Some additional issues have been fixed by this rewrite, like a kdump-kernel boot panic with 'iommu=pt' and support for copying the extended root-entry and context table formats has been added.
I plan to rebuild the x86/vt-d branch of the iommu tree with these patches.
Regards,
Joerg
Joerg Roedel (19): iommu/vt-d: Cleanup log messages iommu/vt-d: Init QI before root entry is allocated iommu/vt-d: Make root entry visible for hardware right after allocation iommu/vt-d: Detect pre enabled translation iommu/vt-d: Copy translation tables from old kernel iommu/vt-d: Do not re-use domain-ids from the old kernel iommu/vt-d: Mark copied context entries iommu/vt-d: Allocate si_domain in init_dmars() iommu/vt-d: Don't do early domain assignment if kdump kernel iommu/vt-d: Don't copy translation tables if RTT bit needs to be changed iommu/vt-d: Don't disable translation prior to OS handover iommu/vt-d: Enable Translation only if it was previously disabled iommu/vt-d: Move EIM detection to intel_prepare_irq_remapping iommu/vt-d: Move QI initializationt to intel_setup_irq_remapping iommu/vt-d: Disable IRQ remapping in intel_prepare_irq_remapping iommu/vt-d: Set IRTA in intel_setup_irq_remapping iommu/vt-d: Copy IR table from old kernel when in kdump mode iommu/vt-d: Make sure copied over IR entries are not reused iommu/vt-d: Don't disable IR when it was previously enabled
drivers/iommu/dmar.c | 28 +- drivers/iommu/intel-iommu.c | 495 ++++++++++++++++++++++++++++-------- drivers/iommu/intel_irq_remapping.c | 255 ++++++++++++------- include/linux/intel-iommu.h | 5 + 4 files changed, 573 insertions(+), 210 deletions(-)
-- 1.9.1
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