Sarah Chronicles : CPUID, Hypervisor, Sarah Mocke, Windows Server 2008

The Mystery of Hyper-V's Limit Processor Functionality? (Part 3 - Officially)

natasham — Mon, 02 Jun 2008 04:58:00 GMT

I found out a bit more from the product group. It seems some legacy operating systems, like Windows NT 4.0, bugcheck if they perform a CPUID and have more than three leafs returned. The checkbox is there to allow us to try and get them working. So I was...(read more)

The Mystery of Hyper-V's Limit Processor Functionality? (Part 2 - Final)

natasham — Sat, 03 May 2008 11:04:00 GMT

In this post I discuss how you can determine: 1. If your operating system is running on a hypervisor, 2. The processor feature differences presented for an operating system running directly on hardware versus a parent partition operating system on a hypervisor, 3. The processor feature differences presented for a child partition operating system running without LPF set versus one that does. ...(read more)

The Mystery of Hyper-V's Limit Processor Functionality? (Part 1)

natasham — Sat, 19 Apr 2008 11:00:00 GMT

Recently I became rather intrigued with Hyper-V's Limit Processor Functionality (LPF) function. One little checkbox became such an obsession that I start wasting hours of my time trying to find out exactly what it does. The dialogue says, "Limit processor...(read more)