Re: [Xen-devel] Rudolph: merging Vixen and Comet

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 12.01.18 at 14:24, <wei.liu2@xxxxxxxxxx> wrote:
> Here I list the differences between the two implementations.

Thanks for the summary.

>                       Vixen                          Comet
> Boot mode             HVM                            PVH + HVM
> Kconfig options       XEN_GUEST                      XEN_GUEST + PVH_GUEST + 
> SHIM_EXCLUSIVE
> Xen build system      No change                      New build target for 
> shim 
> Guest console         Output only                    Bi-directional
> Guest domid           1 or set via shim option       1 or retrieved via cpuid
> Guest type            Hardware domain                Normal domain
> Time source           Emulated                       Xen PV clock
> Shutdown              PV + HW                        PV
> SI mapping            Reserved page                  Fixed map, PFN chosen at 
> runtime
> VCPU id               Handled by L1                  Provide by L0 if 
> available
> VCPU runstate         Forwarded to L0                Handled by L1

Is there anything known as to which of the two might be better,
or whether perhaps the best choice depends on other
circumstances?

> Xen version           L0 version                     L1 version

I think this should really the smaller of the two.

Jan


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