During pci root bus hot-add, ioapic and iommu need to be parsed at first. Using acpi_pci_driver->add to do that. The patches need to apply after for-x86-irq could get from git://git.kernel.org/pub/scm/linux/kernel/git/yinghai/linux-yinghai.git for-iommu-3.14 -v2: refreshed after 3.13-rc6 Yinghai Lu (10): IOMMU: Update dmar units devices list during hotplug IOMMU: Fix tboot force iommu logic IOMMU: Don't clean handler data before free_irq() IOMMU: iommu_unique_seq_id() ACPI: Add acpi_run_dsm() IOMMU: Separate free_dmar_iommu from free_iommu IOMMU: Add init_dmar_one() IOMMU: Add intel_enable_irq_remapping_one() IOMMU: Add dmar_parse_one_drhd() IOMMU: Add intel iommu irq-remapping and dmar hotplug support drivers/acpi/bus.c | 77 +++++++ drivers/acpi/pci_root.c | 2 + drivers/iommu/dmar.c | 414 ++++++++++++++++++++++++++++++++++-- drivers/iommu/intel-iommu.c | 162 +++++++++++--- drivers/iommu/intel_irq_remapping.c | 167 ++++++++++++++- include/linux/acpi.h | 10 + include/linux/dmar.h | 53 ++++- include/linux/pci-acpi.h | 8 + 8 files changed, 836 insertions(+), 57 deletions(-) -- 1.8.4 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html