* How to run a HVM guest without pv
@ 2014-11-10 5:28 Wen Congyang
2014-11-10 9:23 ` Andrew Cooper
2014-11-10 11:50 ` Stefano Stabellini
0 siblings, 2 replies; 6+ messages in thread
From: Wen Congyang @ 2014-11-10 5:28 UTC (permalink / raw)
To: xen devel
I disable xen-platform-pci in the config file, but when I start the guest, I found
the following kernel message:
[ 0.000000] Booting paravirtualized kernel on Xen HVM
[ 0.000000] xen:events: Xen HVM callback vector for event delivery is enabled
Thanks
Wen Congyang
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: How to run a HVM guest without pv
2014-11-10 5:28 How to run a HVM guest without pv Wen Congyang
@ 2014-11-10 9:23 ` Andrew Cooper
2014-11-10 10:05 ` Wen Congyang
2014-11-10 11:50 ` Stefano Stabellini
1 sibling, 1 reply; 6+ messages in thread
From: Andrew Cooper @ 2014-11-10 9:23 UTC (permalink / raw)
To: Wen Congyang, xen devel
On 10/11/2014 05:28, Wen Congyang wrote:
> I disable xen-platform-pci in the config file, but when I start the guest, I found
> the following kernel message:
> [ 0.000000] Booting paravirtualized kernel on Xen HVM
> [ 0.000000] xen:events: Xen HVM callback vector for event delivery is enabled
>
> Thanks
> Wen Congyang
There is no current ability to do this.
Here, Linux will be detecting Xen using the hypervisor cpuid leaves at
0x40000000, but if you disable those in Xen, HVMLoader will fail due to
being unable to gain a hypercall page.
It might be a plausible thing to be able to make an HVM domain with no
paravirtual interfaces whatsoever, but it would require quite a bit of
re-architecting of the current HVM infrastructure.
~Andrew
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: How to run a HVM guest without pv
2014-11-10 9:23 ` Andrew Cooper
@ 2014-11-10 10:05 ` Wen Congyang
0 siblings, 0 replies; 6+ messages in thread
From: Wen Congyang @ 2014-11-10 10:05 UTC (permalink / raw)
To: Andrew Cooper, xen devel
On 11/10/2014 05:23 PM, Andrew Cooper wrote:
> On 10/11/2014 05:28, Wen Congyang wrote:
>> I disable xen-platform-pci in the config file, but when I start the guest, I found
>> the following kernel message:
>> [ 0.000000] Booting paravirtualized kernel on Xen HVM
>> [ 0.000000] xen:events: Xen HVM callback vector for event delivery is enabled
>>
>> Thanks
>> Wen Congyang
>
> There is no current ability to do this.
>
> Here, Linux will be detecting Xen using the hypervisor cpuid leaves at
> 0x40000000, but if you disable those in Xen, HVMLoader will fail due to
> being unable to gain a hypercall page.
>
> It might be a plausible thing to be able to make an HVM domain with no
> paravirtual interfaces whatsoever, but it would require quite a bit of
> re-architecting of the current HVM infrastructure.
Thanks. The newest kernel has a new parameter: xen_nopv, but my guest
kernel is old....
>
> ~Andrew
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: How to run a HVM guest without pv
2014-11-10 5:28 How to run a HVM guest without pv Wen Congyang
2014-11-10 9:23 ` Andrew Cooper
@ 2014-11-10 11:50 ` Stefano Stabellini
2014-11-10 12:11 ` Wen Congyang
1 sibling, 1 reply; 6+ messages in thread
From: Stefano Stabellini @ 2014-11-10 11:50 UTC (permalink / raw)
To: Wen Congyang; +Cc: xen devel
On Mon, 10 Nov 2014, Wen Congyang wrote:
> I disable xen-platform-pci in the config file, but when I start the guest, I found
> the following kernel message:
> [ 0.000000] Booting paravirtualized kernel on Xen HVM
> [ 0.000000] xen:events: Xen HVM callback vector for event delivery is enabled
You can pass xen_nopv to the kernel command line
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: How to run a HVM guest without pv
2014-11-10 11:50 ` Stefano Stabellini
@ 2014-11-10 12:11 ` Wen Congyang
2014-11-10 14:31 ` Konrad Rzeszutek Wilk
0 siblings, 1 reply; 6+ messages in thread
From: Wen Congyang @ 2014-11-10 12:11 UTC (permalink / raw)
To: Stefano Stabellini; +Cc: xen devel
On 11/10/2014 07:50 PM, Stefano Stabellini wrote:
> On Mon, 10 Nov 2014, Wen Congyang wrote:
>> I disable xen-platform-pci in the config file, but when I start the guest, I found
>> the following kernel message:
>> [ 0.000000] Booting paravirtualized kernel on Xen HVM
>> [ 0.000000] xen:events: Xen HVM callback vector for event delivery is enabled
>
> You can pass xen_nopv to the kernel command line
>
Yes, but I don't use the newest kernel...
Thanks
Wen Congyang
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: How to run a HVM guest without pv
2014-11-10 12:11 ` Wen Congyang
@ 2014-11-10 14:31 ` Konrad Rzeszutek Wilk
0 siblings, 0 replies; 6+ messages in thread
From: Konrad Rzeszutek Wilk @ 2014-11-10 14:31 UTC (permalink / raw)
To: Wen Congyang; +Cc: xen devel, Stefano Stabellini
On Mon, Nov 10, 2014 at 08:11:56PM +0800, Wen Congyang wrote:
> On 11/10/2014 07:50 PM, Stefano Stabellini wrote:
> > On Mon, 10 Nov 2014, Wen Congyang wrote:
> >> I disable xen-platform-pci in the config file, but when I start the guest, I found
> >> the following kernel message:
> >> [ 0.000000] Booting paravirtualized kernel on Xen HVM
> >> [ 0.000000] xen:events: Xen HVM callback vector for event delivery is enabled
> >
> > You can pass xen_nopv to the kernel command line
> >
>
> Yes, but I don't use the newest kernel...
You can backport the patch. It is very small.
>
> Thanks
> Wen Congyang
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xen.org
> http://lists.xen.org/xen-devel
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2014-11-10 14:31 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2014-11-10 5:28 How to run a HVM guest without pv Wen Congyang
2014-11-10 9:23 ` Andrew Cooper
2014-11-10 10:05 ` Wen Congyang
2014-11-10 11:50 ` Stefano Stabellini
2014-11-10 12:11 ` Wen Congyang
2014-11-10 14:31 ` Konrad Rzeszutek Wilk
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.