Linux Kernel to Add VMI

Mar 27, 2007

The next stable update to the Linux kernel, Version 2.6.21, is slated to include a new feature submitted by VMware called Virtual Machine Interface.

Virtualized operating system instances can enjoy performance and management benefits if their kernels are modified to communicate with the hypervisor under which they run. This arrangement is called paravirtualization.

The initial promise of Virtual Machine Interface was that it would provide a common protocol across which multiple hypervisors could communicate with the Linux kernel instances they paravirtualize, as opposed to having different sets of hooks built into Linux for different hypervisors.

The idea is similar to the Linux Security Module framework, on which both the SELinux (Security-Enhanced Linux) and AppArmor rights-hardening technologies are built.

However, VMware's approach has faced some pushback among kernel developers, and VMware ended up modifying VMI to plug into a separate kernel paravirtualization interface, called paravirt_ops, which made its way into the stable Linux kernel with the last update (2.6.20).

Dialed-back ambitions or no, VMI is set to enter active service soon, as VMware's forthcoming Workstation 6.0 will make use of VMI-enabled kernels, including those that drive Linux distributions such as the soon-to-ship Ubuntu 7.04.

Copyright 2007 by Ziff Davis Media, Distributed by United Press International

Explore further: Google releases work tools designed for Android phones

add to favorites email to friend print save as pdf

Related Stories

Linux distrib vendors make patches available for GHOST

Jan 29, 2015

Qualys said on Tuesday that there was a serious weakness in the Linux glibc library. During a code audit, Qualys researchers discovered a buffer overflow in the __nss_hostname_digits_dots() function of glibc. ...

High-end 'upstream' Linux laptop plans to ship in April

Jan 27, 2015

A unique laptop wastes no time in promoting its worth in its title, the Purism Librem 15. Its team maintain that this is "the first high-end laptop in the world that ships without mystery software in the ...

Ara challenger suits up for modular smartphone action

Nov 08, 2014

The week closed with two days of nudges and signs that something new is on the boil in modular phones, and that the concept could see some very interesting action in 2015. Android Authority said "things are ...

Bringing the world reboot-less updates

Jan 24, 2014

It's an annoyance for the individual computer user: You've updated your operating system, and now you need to reboot. This is so the computer can switch to the modified source code.

Recommended for you

Google hits back at rivals with futuristic HQ plan

6 hours ago

Google unveiled plans Friday for a new campus headquarters integrating wildlife and sweeping waterways, aiming to make a big statement in Silicon Valley—which is already seeing ambitious projects from Apple ...

Barclays to allow payments by using Twitter handles

10 hours ago

The next chapter in banks moving into the digital age is a stretch beyond reminding customers over phone lines that they can also bank online. Barclays has launched Twitter payments through Pingit.

Pebble smartwatch nears Kickstarter record

12 hours ago

The latest version of the Pebble smartwatch neared a record funding amount on Kickstarter on Friday amid growing interest in wearable tech and ahead of the highly anticipated Apple Watch launch.

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.