Re: [Xen-devel] How to run a HVM guest without pv

[Wen Congyang <wency@xxxxxxxxxxxxxx>]

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
> 


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