Re: [Xen-users] PVH

[Roger Pau Monné <roger.pau@xxxxxxxxxx>]

On Thu, Jun 23, 2016 at 08:11:23AM -0700, Mike Wright wrote:
> Hi all,
> 
> I have questions about Xen PVH.
> 
> Domain0 and guest are both stock ubuntu-16.04 with kernel 4.4.0-22-generic
> compiled with XEN_PVH=y; booting with xen-4.6-amd64 hypervisor.
> 
> Both run fine, however when the option "pvh = 1" is added to the domU config
> file it fails with: "...creation fail: Invalid argument".
> 
> Are there other requirements?  If it matters the CPU doesn't support IOMMU.

You CPU must be Intel and have support for EPT in order to use classic PVH 
guests. You can check if your CPU supports EPT by doing a `xl dmesg` and 
grepping for "Extended Page Tables (EPT)".

Roger.

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