Paravirtualization is a virtualization technique in which the kernel of the guest OS 'cooperates' with the hypervisor in providing low-level hardware-related functions, instead of relying on slower and much more complex emulation. This requires a modified kernel of the guest OS.

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Use graphical DomU (X11 for Linux, regular UI for Windows) from Dom0 without any GUI on Dom0

I am creating a Xen (para)virtualization setup, with two DomU's: a Windows 10 client install, on HVM, and an Linux client install with X11, on PV. Dom0 is a non-graphical Debian install. So far I have ...
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FreeBSD XEN kernel not booting in XenServer 6.2

I have a XenServer 6.2 host, and I am trying to get a FreeBSD-9.1-i386 guest to run in PV mode. The installation of the guest is fine, but after a reboot with the new kernel the system does not boot. ...
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Xen Hosting - What Could Be Causing My Kernel to Not Boot - At All?

I have a VPS at Linode, and I'm trying to boot Gentoo's hardened kernel - which is patched with Grsecurity and PaX. On Linode, you can boot a kernel of your choice by utilizing their "PV-Grub" ...