Drivers/pci/intr remapping

On Fri, at PM, Alex Williamson wrote: On Fri, at +, Kai Huang wrote: On Fri, at AM, Alex Williamson wrote: IOMMU drivers should account for the platform's susceptibility to DMA triggered MSI interrupts in creating IOMMU groups.  · The issue occurs when the VMD MSI remapping is disabled by invoking "vmd_set_msi_remapping(vmd, false)." However, IOMMU hardware blocks the compatibility format interrupt request because Interrupt Remapping Enable Status (IRES) and Extended Interrupt Mode Enable (EIME) are enabled.  · more info on multi iommu system. Signed-off-by: Yinghai Lu drivers/pci/dmar.c | 3 ++- drivers/pci/intel-iommu.c | 9 +++++ drivers/pci/intr.

Mar 9 HOSTNAME kernel:DRHD: handling fault status reg Mar 9 HOSTNAME kernel:INTR-REMAP:Request device [[] fault index 6a Mar 9 HOSTNAME kernel:INTR-REMAP:[fault reason 34] Present field in the IRTE entry is clear Mar 9 HOSTNAME kernel:INTR-REMAP:Request device [[] fault index 6b Mar 9 [PATCH 1/2 v2] pci: change PCI nomenclature in drivers/pci/ (comment changes) From: Stefan Assmann Date: Thu Dec 03 - EST Next message: Stefan Assmann: "[PATCH 2/2 v2] pci: change PCI nomenclature in drivers/pci/ (non-comment changes)". Without source-id checking for interrupt remapping, a rouge guest/VM with assigned devices can launch interrupt attacks to bring down anothe guest/VM or the VMM itself. This patch adds source-id checking for interrupt remapping, and then really isolates interrupts for guests/VMs with assigned devices.

An example IOMMU is the graphics address remapping table (GART) used by AGP and PCI Express graphics cards on Intel Architecture and AMD computers. 23 * reported to OS through BIOS via DMA remapping reporting (DMAR) ACPI invalidation will be enabled to support x2apic and Intr-remapping.\n");. 1 កញ្ញា 1 Introduction · 2 Enable the IOMMU. Intel CPU. GRUB · 3 Required Modules · 4 IOMMU Interrupt Remapping · 5 Verify IOMMU Isolation · 6.