Re: [Xen-devel] PVH questions

[Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>]

Stefano Stabellini, le Wed 30 Jan 2013 14:28:39 +0000, a écrit :
> On Wed, 30 Jan 2013, Samuel Thibault wrote:
> > A couple more questions:
> > 
> > - Does hvm_callback_vector flags designates routing events through
> >   interrupt vector 0xf3?
> 
> XENFEAT_hvm_callback_vector determins the hypervisor capability, while
> you need an HVMOP_set_param hypercall to set HVM_PARAM_CALLBACK_IRQ to 
> enable it.

Ok, but I mean: does XENFEAT_hvm_callback_vector mean that
HVM_PARAM_CALLBACK_IRQ can be set?

> Actually the vector number can be chosen.

Ok.

> > - Is PIC/APIC I/O emulated by the hypervisor, as well as PIT? 
> 
> Yes (hvm_domain_initialise is called for PVH guests). 

Ok, good!

> >   And does hvm_callback_vector designates that fact?
> 
> PVH implies it

I know, but there's not "PVH" flag in the hypervisor capabilities,
that's why I'm asking which flag advertises the capability.

Samuel

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