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: Thanksgiving travel woes? There's an app for that

add to favorites email to friend print save as pdf

Related Stories

Senators get no clear answers on air bag safety

30 minutes ago

There were apologies and long-winded explanations, but after nearly four hours of testimony about exploding Takata air bags, senators never got a clear answer to the question most people have: whether or ...

Nicaragua: Studies say canal impact to be minimal

45 minutes ago

Officials said Thursday that studies have determined a $40 billion inter-oceanic canal across Nicaragua will have minimal impact on the environment and society, and construction is to begin next month.

Former Brown dean whose group won Nobel Prize dies

1 hour ago

David Greer, a doctor who co-founded a group that won the 1985 Nobel Peace Prize for working to prevent nuclear war and who helped transform the medical school at Brown University, has died. He was 89.

Recommended for you

Thanksgiving travel woes? There's an app for that

20 hours ago

Traveling by plane, train or automobile can be a headache. Mixing in Thanksgiving can make it a throbbing migraine. Technology provides some pain relief in the form of apps to let you know which roads are ...

Singapore moves to regulate taxi booking apps

Nov 21, 2014

Singapore on Friday announced new rules for mobile taxi booking apps, including US-based Uber, in the latest move by governments around the world to regulate the increasingly popular services.

Protecting personal data in the cloud

Nov 20, 2014

IBM today announced it has patented the design for a data privacy engine that can more efficiently and affordably help businesses protect personal data as it is transferred between countries, including across private clouds.

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.