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Unicorn is a CPU emulation framework based on QEMU's "TCG" CPU emulator. Unlike QEMU, Unicorn focuses on the CPU only: no emulation of any peripherals is provided and raw binary code (outside of the context of an executable file or a system image) can be run directly. Unicorn is thread-safe and has multiple bindings and instrumentation interfaces.
Windows Commercial ES40 Emulator: 0.18 March 14, 2008: AlphaServer ES40 Cross-platform: GPL: PersonalAlpha: 2.0.17 March 1, 2008: AlphaServer: Windows: Freeware: vtAlpha: 4.4.0 January 5, 2024: AlphaServer: All models AlphaStation: All models Bare Metal installation, no host OS required. Any x86-64 host computer, Virtual Machine equivalent or ...
Some other products such as VMware and Virtual PC use similar approaches to Bochs and QEMU, however they use a number of advanced techniques to shortcut most of the calls directly to the CPU (similar to the process that JIT compiler uses) to bring the speed to near native in most cases.
The spice module [7] provides the reference implementation for the server side of the SPICE protocol. The server is provided as a dynamic library which can be linked to any application wishing to expose a SPICE server. As of 2013, QEMU uses this to provide a SPICE interface for virtual machines.
Full virtualization requires that every salient feature of the hardware be reflected into one of several virtual machines – including the full instruction set, input/output operations, interrupts, memory access, and whatever other elements are used by the software that runs on the bare machine, and that is intended to run in a virtual machine.
qcow is a file format for disk image files used by QEMU, a hosted virtual machine monitor. [1] It stands for "QEMU Copy On Write" and uses a disk storage optimization strategy that delays allocation of storage until it is actually needed.
The term introspection in application to the virtual machines was introduced by Garfinkel and Rosenblum. [3] They invented an approach for "protecting a security application from attack by malicious software" and called it VMI. Now VMI is a common term for different virtual machine forensics and analysis methods.
Kernel-based Virtual Machine (KVM) is a free and open-source virtualization module in the Linux kernel that allows the kernel to function as a hypervisor. It was merged into the mainline Linux kernel in version 2.6.20, which was released on February 5, 2007. [1] KVM requires a processor with hardware virtualization extensions, such as Intel VT ...