August 2016
Intermediate to advanced
468 pages
9h 53m
English
Content preview from Mastering KVM VirtualizationBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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PCI passthrough
PCI passthrough is used to pass through PCI devices on the host to a virtual machine. This is primarily used to directly pass network interfaces on the host to a virtual machine for increased performance.
To enable PCI passthrough, you have to use the following steps:
- Enable Intel VT-d or AMD IOMMU in the BIOS and kernel:
# vi /etc/sysconfig/grub - Modify
GRUB_CMDLINE_LINUX=to appendintel_iommu=onoramd_iommu=on:
- Rebuild the grub2 configuration file as follows and then reboot the hypervisor:
# grub2-mkconfig -o /boot/grub2/grub.cfg
- Navigate to Hardware | PCI Host Device and select the PCI device to pass through:
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