Xen EFI Support Being Added To Linux 3.17
Written by Michael Larabel in Linux Kernel on 4 August 2014 at 08:35 AM EDT. Add A Comment
With the Linux 3.17 kernel that's now officially under development since yesterday's Linux 3.16 release is now support for Xen EFI.

With the upcoming Linux 3.17, it's possible to boot using (U)EFI under Xen Dom0. Daniel Kiper who worked on the Xen EFI patches explained, "Standard EFI Linux Kernel infrastructure cannot be used because it requires direct access to EFI data and code. However, in dom0 case it is not possible because above mentioned EFI stuff is fully owned and controlled by Xen hypervisor. In this case all calls from dom0 to EFI must be requested via special hypercall which in turn executes relevant EFI code in behalf of dom0."

Other EFI changes queued up for the Linux 3.17 merge window are outlined in this EFI pull request but the Xen EFI Dom0 support seems to be the main user-facing feature this cycle. After being introduced in Linux 3.16, there's also continued work on 64-bit ARM EFI support for 3.17.

About The Author
Author picture

Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

Related Linux Kernel News
Popular News
Trending Reviews & Featured Articles