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Re: [Xen-devel] How to use PV drivers with fully virtualized HVM on x86?
- To: Jintack Lim <jintack@xxxxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx, xen-users@xxxxxxxxxxxxx
- From: Juergen Gross <jgross@xxxxxxxx>
- Date: Wed, 24 Oct 2018 16:29:35 +0200
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- Delivery-date: Wed, 24 Oct 2018 14:29:47 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Openpgp: preference=signencrypt
On 24/10/2018 16:16, Jintack Lim wrote:
> Hi,
>
> I'm interested running HVM DomU only with PV drivers (network and
> disk). Enabling CONFIG_XEN_NETDEV_FRONTEND and stuff didn't make DomU
> see the PV devices until I enabled CONFIG_XEN_PVHVM.
Right, that's how it is done in modern Linux kernels.
> But by looking at the virtualization spectrum[1], it seems possible to
> do "HVM with PV drivers", but I couldn't find any guide (i.e.
> kernel/xen configuration) to do that. Could anyone shed some light on
> this?
Disabling most of the PV interfaces other than those needed for using
PV devices isn't supported in Linux since several years now.
Any reason why you want to do that?
Juergen
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