Xen users - Jun 2013 - xen-fbfront in PVHVM?

Hi,

I hope my question is correct on xen-users, please let me know if I should email
to the dev list instead.

I''m running Linux 3.9.3 in an HVM on Xen 4.2.2 and enabled PV drivers
("PVHVM"). I noticed there''s a Xen framebuffer frontend but
it will not load. It returns No such device, and in xenfb_init() of
drivers/video/xen-fbfront.c (in linux sources) I see the following made
explicit:

static int __init xenfb_init(void)
{
    if (!xen_pv_domain())
        return -ENODEV;

Is there something which allows the network and block device frontends to
function as PV in HVMs which this driver cannot support?

Thanks,
Alex

On Wed, Jun 05, 2013 at 04:27:03PM -0400, Merritt, Alex
wrote:
> Hi,
> 
> I hope my question is correct on xen-users, please let me know if I should
email to the dev list instead.
> 
> I''m running Linux 3.9.3 in an HVM on Xen 4.2.2 and enabled PV
drivers ("PVHVM"). I noticed there''s a Xen framebuffer
frontend but it will not load. It returns No such device, and in xenfb_init() of
drivers/video/xen-fbfront.c (in linux sources) I see the following made
explicit:
> 
> static int __init xenfb_init(void)
> {
>     if (!xen_pv_domain())
>         return -ENODEV;
> 
> Is there something which allows the network and block device frontends to
function as PV in HVMs which this driver cannot support?
> 
I think you should be able to simply test this yourself?

At least from reading the code I don''t see anything particular
preventing you from using it in HVM.


Wei.
> Thanks,
> Alex
> 
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xen.org
> http://lists.xen.org/xen-users