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Is it possible to run windows as a virtual machine under Xen using qemu-dm? If so, how can it be done?

Since Xen without VT technology supports only para-virtualization, can qemu-dm, the emulator that helps VMs to access network and disk, can be configured to emulate whole hardware?

In case of KVM, can qemu-dm do this for systems with no hardware-assisted virtualization support?

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Windows will only run in HVM and PV-HVM modes (which use the modified version of QEmu and require VT/AMD-V)

You're looking for PV mode if you require a non-VT/AND-V CPU, and it only works with modified Operating Systems:

Xen PV guest kernels exist for Linux, NetBSD, FreeBSD, OpenSolaris and Novell Netware operating systems.

From: Xen Overview

QEmu can run Windows on just about any hardware, though performance may be "lacking" without the advanced hardware capabilities that enable KVM.

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