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PowerVM, formerly known as Advanced Power Virtualization (APV), is a chargeable feature of IBM POWER5, POWER6, POWER7, POWER8, POWER9 and Power10 servers and is required for support of micro-partitions and other advanced features. Support is provided for IBM i, AIX and Linux.
PowerVM Lx86 was a binary translation layer for IBM's System p servers. It enabled 32-bit x86 Linux binaries to run unmodified on the Power ISA-based hardware.IBM used this feature to migrate x86 Linux servers to the PowerVM virtualized environment; it was supported on all POWER5 and POWER6 hardware as well as BladeCenter JS21 and JS22 systems.
IBM developed the concept of hypervisors (virtual machines in CP-40 and CP-67) and in 1972 provided it for the S/370 as Virtual Machine Facility/370. [2] IBM introduced the Start Interpretive Execution (SIE) instruction (designed specifically for the execution of virtual machines) in 1983 as part of 370-XA architecture on the IBM 3081, as well as VM/XA versions of VM to exploit it.
IBM provides virtualization partition technology known as logical partitioning (LPAR) on System/390, zSeries, pSeries and IBM AS/400 systems. For IBM's Power Systems, the POWER Hypervisor (PHYP) is a native (bare-metal) hypervisor in firmware and provides isolation between LPARs.
It was added to x86 processors (Intel VT-x, AMD-V or VIA VT) in 2005, 2006 and 2010 [10] respectively. IBM offers hardware virtualization for its IBM Power Systems hardware for AIX, Linux and IBM i, and for its IBM Z mainframes. IBM refers to its specific form of hardware virtualization as "logical partition", or more commonly as LPAR.
Power-based IBM systems have built in virtualization capabilities derived from mainframe technology. On System p, this virtualization package is referred to as PowerVM. PowerVM includes virtualization capabilities such as micro-partitioning, active memory sharing and de-duplication, a virtual I/O server for virtual networks and storage, as well ...
In April 2008, IBM officially merged the two lines of servers and workstations under the same name, Power, [2] and later Power Systems, with identical hardware and a choice of operating systems, software, and service contracts, [3] based formerly on a POWER6 architecture. The PowerPC line was discontinued.
In 1974 IBM started a project to build a telephone switching computer that required, for the time, immense computational power. Since the application was comparably simple, this machine would need only to perform I/O, branches, add register-register, move data between registers and memory, and would have no need for special instructions to perform heavy arithmetic.
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