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Average Ratings 0 Ratings

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ease
features
design
support

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Write a Review

Description

Lguest enables the operation of several instances of a 32-bit kernel simultaneously; by using the command modprobe lg, you can initiate it by running Documentation/lguest/lguest to establish a new guest. I encourage you to experiment with it as lguest is exceedingly straightforward to set up. Its utility is significant: I can boot kernels for testing purposes in less than a second, which is approximately ten times quicker than standard qemu and a hundred times faster than a traditional boot process. Moreover, since it employs a pty for the console, you're able to perform actions such as piping the output through grep. Lguest comprises a comprehensive kernel patch, which includes the launcher and is available in versions 2.6.23-git13 and later. The primary goal of lguest is to keep the guest isolated, preventing it from accessing the host directly, aside from virtual devices provided by the host, even if the guest is acting maliciously. Nevertheless, a potentially harmful guest kernel has the capability to pin host memory, limited to the volume allocated to the guest. While most images are configured to create virtual consoles like (/dev/tty0, etc.), the console for lguest is designated as /dev/hvc0, which adds a layer of distinction to its functionality. Additionally, this makes lguest a practical tool for developers who want to test kernel changes in a rapid and efficient manner without the overhead of a full virtualization solution.

Description

QEMU serves as a versatile and open-source machine emulator and virtualizer, allowing users to operate various operating systems across different architectures. It enables execution of applications designed for other Linux or BSD systems on any supported architecture. Moreover, it supports running KVM and Xen virtual machines with performance that closely resembles native execution. Recently, features like complete guest memory dumps, pre-copy/post-copy migration, and background guest snapshots have been introduced. Additionally, there is new support for the DEVICE_UNPLUG_GUEST_ERROR to identify hotplug failures reported by guests. For macOS users with Apple Silicon CPUs, the ‘hvf’ accelerator is now available for AArch64 guest support. The M-profile MVE extension is also now integrated for the Cortex-M55 processor. Furthermore, AMD SEV guests can now measure the kernel binary during direct kernel boot without utilizing a bootloader. Enhanced compatibility has been added for vhost-user and NUMA memory options, which are now available across all supported boards. This expansion of features reflects QEMU's commitment to providing robust virtualization solutions that cater to a wide range of user needs.

API Access

Has API No 

API Access

Has API No 

Screenshots View All

Screenshots View All

Integrations

Fedora CoreOS No 
Mayan EDMS No 
RT-Thread No 
VxWorks No 
american fuzzy lop No 

Integrations

Fedora CoreOS Yes 
Mayan EDMS Yes 
RT-Thread Yes 
VxWorks Yes 
american fuzzy lop Yes 

Pricing Details

No price information available.
Free Trial No 
Free Version No 

Pricing Details

No price information available.
Free Trial No 
Free Version Yes 

Deployment

Web-Based No 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux Yes 
Chromebook No 

Deployment

Web-Based No 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows Yes 
Mac Yes 
Linux Yes 
Chromebook No 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Vendor Details

Company Name

Lguest

Country

Australia

Website

lguest.ozlabs.org

Vendor Details

Company Name

QEMU

Website

www.qemu.org

Product Features

Product Features

Virtual Machine

Backup Management No 
Graphical User Interface No 
Remote Control No 
VDI No 
Virtual Machine Encryption No 
Virtual Machine Migration No 
Virtual Machine Monitoring No 
Virtual Server No 

Virtualization

Archiving & Retention No 
Capacity Monitoring No 
Data Mobility No 
Desktop Virtualization No 
Disaster Recovery No 
Namespace Management No 
Performance Management No 
Version Control No 
Virtual Machine Monitoring No 

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