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https://discussions.citrix.com/topic/363968-xenserver-isnt-detecting-iommu-support/
May 06, 2015 · Hello, as the title implies this is about iommu support in xenserver 6.5, my motherboard has a setting for that in the bios but xenserver isnt detecting that it is enabled. i have to GPUs in my system, one for the host, one for the guest, they are both detected and i can also assign the one gpu t...
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 …
https://support.citrix.com/article/CTX128426
This article describes how to improve network performance in XenServer Feature Pack 1 Virtual Machines (VMs) by using a Network Interface Card (NIC) with Single Root I/O Virtualization (SR-IOV) support. Customers running XenServer 6.0 should refer to CTX131381 – How to Assign SR-IOV Enabled NICs with XenServer 6.x
https://wiki.xenproject.org/wiki/XenParavirtOps/yielding
The different yielding strategies and areas that Linux yields to or should yield to are documented in this section to Xen. IOMMU yielding. Hypervisors can support PCI-passthrough for PV guests, when they do this an IOMMU is needed to translate bus (DMA) to virtual and vice-versa and a mechanism to provide contiguous pages for device drivers ...
https://wiki.xen.org/wiki/VTd_HowTo
Support for passing-through multi-function devices as multi-function devices has been merged into xen-unstable and should appear in 4.0. A back-port to 3.4.1 is available as per the announcement email.. This feature is accessed using extensions to BDF notation to allow a multi-function device to be specified as a …
https://xenbits.xen.org/ext/xen-iommu/rev/55cefd579875
author: Muli Ben-Yehuda <[email protected]> date: Mon Aug 21 11:21:31 2006 +0300 (2006-08-21) parents: 5b951ebe0700 4d8ab492bdee: children: 6520cb4a25d7: files.hgtags ...
https://askubuntu.com/questions/85776/what-is-iommu-and-will-it-improve-my-vm-performance
I just read the Xen Wiki, IOMMU seems to do what SR-IOV does too, But i don't use Xen, and apparently Virtualbox doesn't make good use of this. – Uri Herrera Dec 7 '11 at 5:07. ... The big win for IOMMU support is that we can change which devices we pass through at run time. Before we had to specify a range of devices in the kernel arg list ...
https://en.wikipedia.org/wiki/Input%E2%80%93output_memory_management_unit
In computing, an input–output memory management unit (IOMMU) is a memory management unit (MMU) that connects a direct-memory-access–capable (DMA-capable) I/O bus to the main memory.Like a traditional MMU, which translates CPU-visible virtual addresses to physical addresses, the IOMMU maps device-visible virtual addresses (also called device addresses or I/O addresses in this context) to ...
https://wiki.xen.org/wiki/Talk:VTd_HowTo
Disappointing really, since this motherboard is supposed to support Intel chips that do support it, such as the i5-3570. I've updated the listing accordingly. -- AlphaC 9 June : Asrock recently added iommu support via bios update on all A75 A55 motherboards, I have a A75Pro4-M, after upgrading IOMMU was enabled, not tried with xen yet, this the ...
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