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In computing, virtual machine introspection (VMI) is a technique "for monitoring the runtime state of a system-level virtual machine (VM)", which is helpful for debugging or forensic analysis. [1] [2] The term introspection in application to the virtual machines was introduced by Garfinkel and Rosenblum. [3]
Squawk virtual machine – a Java ME VM for embedded systems and small devices. Cross-Platform. GPL. SuperWaba – Java-like virtual machine for portable devices. GPL. Discontinued, succeeded by TotalCross. TakaTuka – for wireless sensor network devices. GPL. TinyVM. VMKit of LLVM. Wonka VM – developed to run on Acunia's ARM-based hardware ...
The primary driver was the potential for server consolidation: virtualization allowed a single server to cost-efficiently consolidate compute power on multiple underutilized dedicated servers. The most visible hallmark of a return to the roots of computing is cloud computing , which is a synonym for data center based computing (or mainframe ...
Red Hat is the original author of dracut. Red Hat-derived Linux distributions use dracut for initramfs creation.. Fedora Linux since version 12, Constantine [3]; Red Hat Enterprise Linux since version 6 [4]
As mentioned above, the VM control program includes a hypervisor-call handler that intercepts DIAG ("Diagnose", opcode x'83') instructions used within a virtual machine. This provides fast-path non-virtualized execution of file-system access and other operations (DIAG is a model-dependent privileged instruction, not used in normal programming ...
Virtual DOS machines can operate either exclusively through typical software emulation methods (e.g. dynamic recompilation) or can rely on the virtual 8086 mode of the Intel 80386 processor, which allows real mode 8086 software to run in a controlled environment by catching all operations which involve accessing protected hardware and forwarding them to the normal operating system (as exceptions).
A Dalvik-powered phone. The relative merits of stack machines versus register-based approaches are a subject of ongoing debate. [17]Generally, stack-based machines must use instructions to load data on the stack and manipulate that data, and, thus, require more instructions than register machines to implement the same high-level code, but the instructions in a register machine must encode the ...
For example, in 2008, a vulnerability (CVE-2008-0923) in VMware discovered by Core Security Technologies made VM escape possible on VMware Workstation 6.0.2 and 5.5.4. [ 3 ] [ 4 ] A fully working exploit labeled Cloudburst was developed by Immunity Inc. for Immunity CANVAS (a commercial penetration testing tool). [ 5 ]