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Topic: Hypervisor



  
 Hypervisor - Wikipedia, the free encyclopedia
A hypervisor in computing is a scheme which allows multiple operating systems to run, unmodified, on a host computer at the same time.
Hypervisors were originally developed in the early 1970s, when cost reduction was forcing multiple scattered departmental computers to be consolidated into a single, larger computer — the mainframe — that would serve multiple departments.
By running multiple operating systems simultaneously, the hypervisor brought a measure of robustness and stability to the system; even if one operating system crashed, the others would continue working without interruption.
http://en.wikipedia.org/wiki/Hypervisor   (758 words)

  
 Open Interfaces and Formats: Virtual Machine Interface
The hypervisor provides the virtualization abstraction of computer systems underneath it.
Versioning is also important, since it allows the hypervisor vendors to deliver timely bug fixes, or performance enhancements.
This set also represents the class of instructions in the x86 processor that are not easily converted to a virtual environment.
http://www.vmware.com/standards/hypercalls.html   (337 words)

  
 IBM Research Hypervisor
The Research Hypervisor from IBM research has been developed over the last 3 years to validate virtualization features in new hardware architectures and to study fundamental research issues in virtualization.
A reduced and open source implementation of the proven LPAR environment used in IBM's commercial Hypervisors; unmodified distributions are supported.
On Intel we support a modified Linux kernel and demonstrate the multi-platform characteristics of the POWER Hypervisor interfaces.
http://www.research.ibm.com/hypervisor   (461 words)

  
 Online VSUM - Hypervisor Virus
Known variant(s) of Hypervisor are: Hypervisor.3128: Also received in July, 1995, this is a 3,128 byte variant of the Hypervisor virus described above.
When the first Hypervisor infected program is executed, this virus will install itself memory resident at the top of system memory but below the 640K DOS boundary, moving interrupt 12's return.
Once the Hypervisor virus is memory resident, it will infect.COM and.EXE files when they are executed or opened, but not on copy.
http://wiw.org/~meta/vsum/view.php?vir=645   (353 words)

  
 A New IT World: No more operating systems
Using a hypervisor it'll be easy to add processing resource as required - and move the partition from compute resource to compute resource.
This is an important move for the industry - it completely changes the dynamics of the relationship between operating systems vendors and everyone else.
By providing a silicon basis for virtualisation, the CPU companies have changed the role of the VMM from a complex piece of software that needs to marshal OS functionality at an application level to that of a partition loading, marshalling and management tool: a hypervisor.
http://itphasechange.blogspot.com/2005/10/no-more-operating-systems.html   (703 words)

  
 A New IT World: The Hypervisor Wars
These are just some of the ways in which the way we do IT are changing - a change that will have as much effect on the way businesses work as the arrival of the desktop PC.
Install yours first, and the machine is yours - especially if you lock your hypervisor into TPM or similar security mechanisms.
You could end up with a situation where each OS installation would attempt to insinuate its own hypervisor onto the system partition.
http://itphasechange.blogspot.com/2006/01/hypervisor-wars.html   (400 words)

  
 Open Hypervisor Requirements
When memory sharing is implemented by the hypervisor using copy-on-write, the hypervisor must ensure that no unintended data is available from one partition to another.
Hypervisor (or domain 0) must support fiber channel -hosted storage devices.
Restrictions apply as this capability requires support from areas outside of the hypervisor, such as external storage.
http://www.ncultra.org/xen/xen_req.html   (1894 words)

  
 Microsoft 'hypervisor' plan takes shape CNET News.com
And IBM in February released the source code for a project called Research Hypervisor, or rHype.
Such software lets multiple operating systems run on the same computer, a feature that's useful for consolidating servers in order to save money, and for extracting as much work as possible from a single system.
The new software will take advantage of virtualization technology coming from chipmakers Intel and Advanced Micro Devices next year, Muglia said.
http://news.com.com/Microsoft+hypervisor+...+shape/2100-1016_3-5735876.html   (883 words)

  
 IBM throws weight behind multi-OS push CNET News.com
IBM is the 800-pound gorilla when it comes to hypervisor software, which it has supported for decades on its mainframes and has brought to its Power-based Unix servers.
Big Blue quietly enters the noisy market for "hypervisor" software, which lets a computer run multiple operating systems simultaneously.
IBM has released source code for its Research Hypervisor, or rHype, on its Web site, letting anyone examine the approach of a company renowned for its expertise in the field.
http://news.com.com/...+weight+behind+multi-OS+push/2100-1016_3-5588129.html   (856 words)

  
 IBM Research - Secure Hypervisor
sHype is a hypervisor security architecture developed by IBM Research, in various stages of implementation in several hypervisors.
To support a large number of Virtual Machines, we have developed a virtual TPM architecture which we have applied to the Xen open-source hypervisor.
We have also explored implementing these security architecture features in the open-source Research hypervisor rHype, with Linux running inside the Virtual Machines.
http://www.research.ibm.com/secure_systems_department/projects/hypervisor   (383 words)

  
 IBM 'hypervisor' software makes stealth debut
IBM has entered the market for "hypervisor" software, which lets a computer run multiple operating systems simultaneously.
The company's new Research Hypervisor (rHype) project may compete with Microsoft's Virtual Server and EMC's VMware and with the open-source Xen software.
However, rHype is more likely to be a help than a hindrance to Xen; specifically, it could help Xen move from its current base of x86 chips to IBM's Power family.
http://techrepublic.com.com/5208-6230-0.html?forumID=5&threadID=169013   (202 words)

  
 Dave Glover "Down Under (Oz)" : Microsoft's Virtualisation Roadmap and just what is a Hypervisor
Windows virtualization will be hypervisor based and take full advantage of hardware innovations from Intel and AMD in the forms of VT and Pacifica, respectively.
Intel and AMD are both working on providing full Hypervisor support at the CPU level, introducing a new CPU Ring (-1), with respective project codenames "Vanderpool" and "Pacifica".
In the Virtualisation world the term "Hypervisor" gets banded around a lot and I found a great overview of the technology, it's history, various competing projects and future directions including x86 at http://en.wikipedia.org/wiki/Hypervisor.
http://blogs.msdn.com/dglover/archive/2005/08/12/450416.aspx   (591 words)

  
 Technorati Tag: hypervisor
While Microsoft's Windows Hypervisor technology, code-named Viridian and currently under development, will not be ready when Windows "Longhorn" Server...
Microsoft to embed Windows Hypervisor in Longhorn by 2010
One thing to note about the new Apple Intel machines is that the Yonah chipset supports VT. With Apple saying that they'll let Windows run on their...
http://www.technorati.com/tag/hypervisor   (469 words)

  
 Search
1035 * Currently unsupported by hypervisor and all functions are noops.
1058 * Currently unsupported by hypervisor and all functions are noops.
1053 * Map hypervisor error code to solaris.
http://cvs.opensolaris.org/source/search?q=hypervisor   (652 words)

  
 [No title]
Cool, I assume the "Windows Hypervisor" is the same thing used in the X360.
I thought this was developed by IBM though, ah well it seems a good idea, especially for server software.
Microsoft to embed Windows Hypervisor in Longhorn by 2010
http://bink.nu/Article5785.bink   (391 words)

  
 » Etymology of 'hypervisor' surfaces Between the Lines ZDNet.com
In virtual machine parlance, the hypervisor is the layer of software that sits just "above" the hardware and handles the virtualization process (making one machine look like more than one machine and allowing each of those 'virtual' machines to run different operating systems).
Director of Strategy and Marketing, mentioned that experimental status during my line of questioning about how other virtualization technologies such as Xen and Intel's Vanderpool may affect the company's plans.
There was very little fanfare about these codes, but in my mind, they saved IBM's butt during this migration.
http://blogs.zdnet.com/BTL?p=1710%E2%88%82=rss&tag=feed&subj=zdblog   (815 words)

  
 Xbox360FanBoy: The hypervisor and its implications - Xbox-Scene Online Web Community
I am thinking something along the font expoit trick (some flaw in a type of file that can be expoited) to make the Hypervisor think its running legit software.
Is this hypervisor system implemented in anything else yet?
http://forums.xbox-scene.com/index.php?showtopic=464722   (1485 words)

  
 [No title]
Microsoft's corporate vice president of server and tools marketing and solutions, Andy Lees, told ComputerWire that the company is working with Intel and AMD on their respective VT and Pacifica processor-based virtualization technologies.
Microsoft Corp has confirmed that it is working with Intel Corp and Advanced Micro Devices Inc on a new virtualization hypervisor technology that will take it into competition with the Xen open source hypervisor.
Ultimately we will build a hypervisor working with Intel and AMD and do it at the operating system level."
http://bink.nu/Article4377.bink   (458 words)

  
 IBM eServer OpenPower - IBM Hypervisor and Virtual I/O Server
Support multiple operating system environments for testing, migration, or application optimization with IBM Hypervisor multi-OS support:
® OpenPower™ servers is accomplished by an optional charge feature called IBM Hypervisor and Virtual I/O Server which is a set of hardware and software options that provide partitioning and I/O virtualization capabilities.
Mixed workloads enabled by the IBM Hypervisor LPAR, DLPAR, and Shared Pool flexibility features.
http://www-03.ibm.com/servers/eserver/openpower/virtualization   (448 words)

  
 Recent Advances Boost System Virtualization
IBM has other, related hypervisor efforts: Power Hypervisor, a commercial hypervisor for its new Power5-based servers, and sHype, a secure hypervisor research project.
While not a product, IBM's recent release of source code for its rHype Research Hypervisor project will, among other things, help the open-source Xen virtual machine monitor project.
However, earlier this week, XenSource announced it plans to incorporate technology contributions from Intel into Release 3.0 of the Xen hypervisor.
http://www.eweek.com/article2/0,1759,1772625,00.asp   (1332 words)

  
 (WO 02/50664) LOGICAL SUBSTITUTION OF PROCESSOR CONTROL IN AN EMULATED COMPUTING ENVIRONMENT
A hypervisor of the emulation program replaces some of the processor settings of the processor with processor settings associated with software routines or data structures provided by the guest operating system; The replaced processor settings are written to memory.
If a change to the page table of the guest operating system causes a conflict between the page table of the guest operating system and the page table of the hypervisor, the page table of the hypervisor is reallocated in a manner that is transparent to the guest operating system.
During the period that the hypervisor is coupled to the processor, the page table of the hypervisor is established such that it largely mirrors the page table of the guest operating system.
http://wipo.int/cgi-pct/guest/getbykey5?KEY=02/50664.020627&ELEMENT_SET=DECL   (321 words)

  
 IBM Redbooks CPU Resource Distribution by POWER Hypervisor and Partition Load Manager
The use of this information or the implementation of any of these techniques is a customer responsibility and depends upon the customer's ability to evaluate and integrate them into the customers operational environment.
POWER Hypervisor (PHYP) is the firmware layer that runs underneath AIX, Linux and i5/OS on pSeries machines.
This technote examines how they manage the resource distribution, and the differences in usage that can result.
http://www.redbooks.ibm.com/abstracts/tips0427.html?Open   (2120 words)

  
 Hypervisor targets mobile phone, STB chip makers
Other available virtualization technologies include IBM hypervisors, VMware, Virtual PC, L4, as well as virtualization hardware support technologies like Intel VT, AMD Pacifica, and others.
In that regard, the technology most closely resembles ARM's TrustZone, he says, while costing less.
ARM adds security extension to RISC processor core
http://www.linuxdevices.com/news/NS6466728549.html   (589 words)

  
 VMTN Discussion Forums: VMM vs Hypervisor ...
The word Hypervisor is a relatively new byproduct of Virtualization software that refers to the layer between the physical hardware and the guest virtual machines.
- Controlling the abtracted presentation of this hardware in such a way that multiple virtual machine running heterogenous operating systems can all see "through the hypervisor" and run simultaneously on the single piece of physical hardware.
In the case of ESX the hypervisor is the VMKERNEL.
http://www.vmware.com/community/thread.jspa?threadID=20870   (436 words)

  
 Xen - Server Virtualization with the Xen Hypervisor
With this technology the virtual servers and hypervisor co-operate to achieve very high performance for I/O and for CPU and memory virtualization.
Moreover, this approach results in significant I/O performance impact.
Paravirtualization requires a tiny hypervisor code base (Xen is under 50 KLOC) that results in extremely low performance overhead, typically in the range of 0.1% to 3.5% for industry standard performance benchmarks.
http://www.xensource.com/xen/xen/paravirtualization.html   (282 words)

  
 Xen getting multiprocessor support Tech News on ZDNet
Another potentially formidable competitor could have been IBM's rHype, or Research Hypervisor, given that Big Blue has decades of experience with the technology.
But in a mailing list posting, an IBM programmer said the project--or at least the version for Intel chips--"was mostly for demonstration purposes" and steered people toward Xen.
EMC subsidiary VMware has a head start of years, already supports virtual machines that use up to two physical processors, and will receive four-processor support by the end of 2005.
http://news.zdnet.com/2100-3513_22-5741373.html   (695 words)

  
 Microsoft Sheds More Light on Windows Hypervisor Technology
He also pointed out that Microsoft Research in the United Kingdom contributed to the development of the Xen hypervisor technology, which was initially a project at the University Of Cambridge's Computer Laboratory.
BOSTON—While Microsoft's Windows Hypervisor technology, code-named Viridian and currently under development, will not be ready when Windows "Longhorn" Server ships sometime next year, company officials are optimistic that it will be available "sooner rather than later."
"The Xen and Viridian hypervisor architectures are actually more similar than they are different, and the inclusion of this technology into the Linux distributions broadens the market and ecosystem around this technology, which is good for all of us," he said.
http://www.eweek.com/article2/0,1759,1946420,00.asp?kc=EWRSS03119TX1K0000594   (994 words)

  
 FedoraForum.org - Missing floppy.ko in hypervisor?
When running the xen hypervisor kernel, the floppy drive does not work.
Otherwise I'll try to look into the source tree and see if I can manage to build one.
Does anyone know if this is an intentional omission?
http://forums.fedoraforum.org/showthread.php?t=97203&goto=newpost   (102 words)

  
 John Howard : Virtual Server Roadmap and Windows Virtualisation (Virtualization) aka Hypervisor
If you're interested more in the future of Virtualisation (Virtualization if you're from the other side of the Atlantic from me), or where Microsoft is heading in terms of the broad architecture of the Windows "Hypervisor" check out this link to a publicly available slide deck on the Virtual Server roadmap.
I think John got the jump on me today with his post, however I just collated this information for a customer...
Virtual Server Roadmap and Windows Virtualisation (Virtualization) aka Hypervisor
http://blogs.technet.com/jhoward/archive/2005/06/17/406488.aspx   (293 words)

  
 Rob Earhart's WebLog : Hypervisor
So you can run multiple copies of Windows on it (or Linux, or DOS, or anything else which runs on x86/x64), and take them up and down individually, and everything just works.
Then I decided I wanted to do something other than fix bugs, and switched over to the Hypervisor team.
So for those who missed the announcement a few months ago: the hypervisor's an OS which happens to look like ordinary hardware to the applications which run on it.
http://blogs.msdn.com/earhart/archive/2005/07/29/445000.aspx   (191 words)

  
 XenSource: Delivering the Power of Xen
Anthony Liguori is a student at the University of Texas and employed by IBM's Linux Technology Center.
Participate in the Xen Open Source Community and help build the potential of the world's fastest hypervisor.
XenSource Unveils Virtualization Product Based on the Open Source Xen Hypervisor
http://www.xensource.com   (45 words)

  
 virtualization.info: Windows Hypervisor will require 64bit CPUs with virtualization support
So better reconsider your orders and go for Intel Virtualization Technology (VT) or AMD with I/O Virtualization Technology CPUs.
virtualization.info: Windows Hypervisor will require 64bit CPUs with virtualization support
Windows Hypervisor will require 64bit CPUs with virtualization support
http://virtualization.info/2006/02/windows-hypervisor-will-require-64bit.html   (221 words)

  
 Sun Microsystems Opens Door for Open Sourcing SPARC Technology - Raises the Temperature on Competition with ...
Sun OpenSPARC Initiative Publishes UltraSPARC(R) Architecture 2005 and HyperVisor API Specifications, Enabling Greater Customer Choice and Innovation in Highly-Threaded Environments
The publication of these specifications will broaden the base of users who can take advantage of the performance, power and space benefits of the UltraSPARC T1 processor's massive throughput.
Kip Macy, the author of the FreeBSD port to the Xen x86 hypervisor, is excited about the opportunity to port FreeBSD to a new hypervisor on a new architecture.
http://www.sun.com/smi/Press/sunflash/2006-02/sunflash.20060214.5.xml   (587 words)

  
 Hypervisor - definition of Hypervisor by the Free Online Dictionary, Thesaurus and Encyclopedia.
Hypervisor is not available in the general English dictionary and thesaurus.
You may also use the word browser links:
This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.
http://www.thefreedictionary.com/hypervisor   (84 words)

  
 Goals tagged "hypervisor" on 43 Things
No goals have been tagged with hypervisor yet.
Roman Cahero wants to get a moment of inner freedomm gain 5 pounds Have a totally different life by this time next year try standup comedy study Russian live outside the united states knit take a kickboxing class
Run your entire network on a single server: Xen
http://www.43things.com/tag/hypervisor   (97 words)

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