On Tue, Jan 7, 2014 at 1:00 AM, Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx> wrote: > Intel DMA/interrupt remapping drivers scan available PCI/memory devices > at startup and cache discovered hardware topologies. They don't update > cached information if PCI/memory hotplug event happens at runtime, then > the stale information may break DMA/interrupt remapping logic. > > This patchset first (Patch 1-8) tries to introduces some helper > functions and fixes several bugs, then (Patch 9,10) uses a global > rwsem and RCU to protect global DMA/interrupt remapping data > structures, and finally (Patch 11-14) hook PCI/memory hotplug events > to update cached information. > > It's also a preparation for supporting of DMA/interrupt remapping > hotplug. > > Jiang Liu (14): > iommu/vt-d: factor out dmar_alloc_dev_scope() for later reuse > iommu/vt-d: move private structures and variables into intel-iommu.c > iommu/vt-d: simplify function get_domain_for_dev() > iommu/vt-d: free resources if failed to create domain for PCIe > endpoint > iommu/vt-d: create device_domain_info structure for intermediate P2P > bridges > iommu/vt-d: fix incorrect iommu_count for si_domain > iommu/vt-d: fix error in detect ATS capability > iommu/vt-d: introduce macro for_each_dev_scope() to walk device scope > entries > iommu/vt-d: introduce a rwsem to protect global data structures > iommu/vt-d: use RCU to protect global resources in interrupt context > iommu/vt-d, PCI: update DRHD/RMRR/ATSR device scope caches when PCI > hotplug happens > iommu/vt-d, PCI: unify the way to process DMAR device scope array > iommu/vt-d: update device to static identity domain mapping for PCI > hotplug > iommu/vt-d: update IOMMU state when memory hotplug happens > > drivers/iommu/dmar.c | 412 +++++++++++++++++-------- > drivers/iommu/intel-iommu.c | 583 +++++++++++++++++++++-------------- > drivers/iommu/intel_irq_remapping.c | 108 ++++--- > include/linux/dmar.h | 75 +++-- > 4 files changed, 753 insertions(+), 425 deletions(-) Hi, Jiang, What is relationship between your two patchset with my iommu hotplug patchset? https://lkml.org/lkml/2014/1/2/527 or yours will just replace mine? Thanks Yinghai -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
