Ratings and Reviews 0 Ratings

Total
ease
features
design
support

This software has no reviews. Be the first to write a review.

Write a Review

Ratings and Reviews 0 Ratings

Total
ease
features
design
support

This software has no reviews. Be the first to write a review.

Write a Review

Alternatives to Consider

  • V2 Cloud Reviews & Ratings
    267 Ratings
    Company Website
  • Google Compute Engine Reviews & Ratings
    1,152 Ratings
    Company Website
  • Delska Reviews & Ratings
    14 Ratings
    Company Website
  • Google Cloud Platform Reviews & Ratings
    57,010 Ratings
    Company Website
  • Thinfinity Workspace Reviews & Ratings
    14 Ratings
    Company Website
  • TruGrid Reviews & Ratings
    65 Ratings
    Company Website
  • ConnectWise Automate Reviews & Ratings
    501 Ratings
    Company Website
  • phoenixNAP Reviews & Ratings
    6 Ratings
    Company Website
  • ManageEngine OpManager Reviews & Ratings
    1,452 Ratings
    Company Website
  • Kasm Workspaces Reviews & Ratings
    126 Ratings
    Company Website

What is QEMU?

QEMU is a dynamic and open-source tool that functions as both a machine emulator and a virtualizer, permitting users to run various operating systems on multiple architectures. This allows for applications created for different Linux or BSD systems to be executed seamlessly on any compatible architecture. In addition, it offers the capability to run KVM and Xen virtual machines with impressive performance that is comparable to native execution. Recently, a host of new features has been incorporated, including comprehensive guest memory dumps, pre-copy/post-copy migration, and the ability to take background snapshots of guests. Furthermore, support for DEVICE_UNPLUG_GUEST_ERROR has been introduced, enabling the identification of hotplug failures as reported by guests. For macOS users utilizing Apple Silicon CPUs, the introduction of the ‘hvf’ accelerator significantly enhances AArch64 guest support. The integration of the M-profile MVE extension for the Cortex-M55 processor represents another noteworthy advancement. Additionally, AMD SEV guests can now conduct kernel binary measurement during direct kernel boot without the need for a bootloader. Enhanced vhost-user and NUMA memory options have also been made available across all supported boards, reflecting a significant commitment to compatibility. This expansion of capabilities underscores QEMU's dedication to delivering powerful virtualization solutions that adapt to a broad spectrum of user requirements and technological advancements.

What is Lguest?

Lguest allows for the simultaneous operation of multiple instances of a 32-bit kernel, and you can start it by executing the command modprobe lg followed by Documentation/lguest/lguest to create a new guest. I highly recommend trying it out because lguest is incredibly easy to set up and use. Its advantages are noteworthy: I can boot kernels for testing in under a second, which is about ten times faster than qemu and a hundred times quicker than traditional boot methods. Furthermore, by utilizing a pty for console access, you can perform operations like piping outputs through grep. Lguest includes a full kernel patch, featuring the launcher, and is compatible with versions 2.6.23-git13 and newer. The main purpose of lguest is to maintain the isolation of guests, preventing them from directly accessing the host system, except via virtual devices provided by the host, even in cases where the guest may pose a security threat. However, a potentially dangerous guest kernel can still pin host memory, but this is restricted to the amount allocated for the guest itself. While many images are set up to create virtual consoles such as (/dev/tty0, etc.), lguest designates its console as /dev/hvc0, which enhances its functionality. This unique console setup, along with its rapid boot times, makes lguest an invaluable resource for developers looking to efficiently test kernel modifications without the complexities associated with full virtualization environments. Thus, lguest stands out as both a practical tool for quick testing and a means to ensure the integrity of the host system.

Media

Media

Integrations Supported

Fedora CoreOS
Mayan EDMS
RT-Thread
VxWorks
american fuzzy lop

Integrations Supported

Fedora CoreOS
Mayan EDMS
RT-Thread
VxWorks
american fuzzy lop

API Availability

Has API

API Availability

Has API

Pricing Information

Pricing not provided.
Free Trial Offered?
Free Version

Pricing Information

Pricing not provided.
Free Trial Offered?
Free Version

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

QEMU

Company Website

www.qemu.org

Company Facts

Organization Name

Lguest

Company Location

Australia

Company Website

lguest.ozlabs.org

Categories and Features

Virtual Machine

Backup Management
Graphical User Interface
Remote Control
VDI
Virtual Machine Encryption
Virtual Machine Migration
Virtual Machine Monitoring
Virtual Server

Virtualization

Archiving & Retention
Capacity Monitoring
Data Mobility
Desktop Virtualization
Disaster Recovery
Namespace Management
Performance Management
Version Control
Virtual Machine Monitoring

Categories and Features

Popular Alternatives

KVM Reviews & Ratings

KVM

Red Hat

Popular Alternatives

VirtualBox Reviews & Ratings

VirtualBox

Oracle
KVM Reviews & Ratings

KVM

Red Hat
VirtualBox Reviews & Ratings

VirtualBox

Oracle