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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Mismatch in SCSI controllers between vSphere and Linux using pvscsi driver

Using RHEL6 and vSphere 5.5. System was previously using LSI Parallel scsi controller. After switching to Paravirtual SCSI controller, the SCSI controllers (and therefor disk IDs) are not matching ...
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How can I force xenserver to create a full (not paravirtualized) vm?

Exact opposite of this question: How to makesure VM is in Para virtualization mode on XEN? I've got xenserver 6.2 and nowhere in the UI when creating a VM does it give me the option to use HVM and ...
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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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How can I track security issues with running kernel under paravirtualisation?

I've got a bunch of client's virtual machines running by various providers who use Xen paravirtualisation. Almost all of these are Debian or Debian based systems. I rely on APT pretty heavily to ...
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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" ...