Searching for Intel Iommu Support information? Find all needed info by using official links provided below.
https://en.wikipedia.org/wiki/List_of_IOMMU-supporting_hardware
64 rows · The vast majority of Intel server chips of the Xeon E3, Xeon E5, and Xeon E7 product lines support VT-d. The first—and least powerful—Xeon to support VT-d was the E5502 launched Q1'09 with two cores at 1.86 GHz on a 45 nm process. Many or most Xeons subsequent to this support VT-d.
https://software.intel.com/en-us/blogs/2009/03/02/intels-virtualization-for-directed-io-aka-iommu-part-1/
Mar 02, 2009 · Intel's Virtualization for Directed I/O (a.k.a IOMMU) Part 1 By Ashok Raj , published on March 2, 2009, updated January 1, 2015 This is something which has existed in the risc based systems for quite some time.
https://www.intel.com/content/www/us/en/support/articles/000005486/processors.html
Note: A processor with Intel® Virtualization Technology doesn't guarantee that virtualization works on your system. Intel® Virtualization Technology requires a computer system with a chipset, BIOS, enabling software and/or operating system, device drivers, and applications designed for this feature.
https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.1/html/installation_guide/appe-configuring_a_hypervisor_host_for_pci_passthrough
If intel_iommu=on or amd_iommu=on works, you can try replacing them with iommu=pt or amd_iommu=pt. The pt option only enables IOMMU for devices used in passthrough and will provide better host performance. However, the option may not be supported on all hardware.
https://scottlinux.com/2017/05/10/how-to-enable-iommu-support-in-fedora-linux/
Typically by default, IOMMU is not enabled in Linux. I’ll show how to enable that virtualization feature on Fedora Linux! 1. First, check if IOMMU support is enabled by running this command:
https://lore.kernel.org/patchwork/patch/840566/
Oct 13, 2017 · Remapped Interrupt supported on IOMMU: dmar5 IR table address:ffff93e09d54c310 ----- Index SID Dest_ID Vct Raw_value_high Raw_value_low 1 3a00 00000600 2c 0000000000043a00 00000600002c0009 111 4301 00000900 a2 0000000000044301 0000090000a20009 Posted Interrupt supported on IOMMU: dmar5 IR table address:ffff93e09d54c310 ----- Index SID PDA_high ...
http://developer.amd.com/wordpress/media/2013/12/48882_IOMMU.pdf
support or sustain life, or in any other application in which the failure of AMD’s product could create a situation where personal injury, death, or severe property or environmental damage may occur. 5. You have no obligation to give AMD any suggestions, comments or feedback (“Feedback”) relat- ... (IOMMU) Specification. AMD I/O ...
https://groups.google.com/d/msg/qubes-users/Sz0Nuhi4N0o/ZtpJdoc0OY8J
VT-d, which provides IOMMU services, is a very important feature for realizing the security promises of Qubes OS. Without it, although the CPU isolates VMs, their memory lies open to relatively easy DMA-based attacks, with network devices and GPUs being some of the more well-known pieces of hardware for executing such attacks.
https://askubuntu.com/questions/85776/what-is-iommu-and-will-it-improve-my-vm-performance
IOMMU sounds like a generic name for Intel VT-d and AMD IOV. In which case I don't think you can multiplex devices, it's a lot like PCI passthrough before all these fancy virtualization instructions existed :). SR-IOV is different, the peripheral itself must carry the support.
https://en.wikipedia.org/wiki/IOMMU
The IOMMU handles this re-mapping, allowing the native device drivers to be used in a guest operating system. In some architectures IOMMU also performs hardware interrupt re-mapping, in a manner similar to standard memory address re-mapping. Peripheral memory paging can be supported by an IOMMU.
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