Re: [Minios-devel] Single codebase for para-virtualized guests on x86 and ARM?

[Ajay Garg <ajaygargnsit@xxxxxxxxx>]

Hi Julien.

Sorry for restarting this thread, but I was just wondering whether PV
on ARM might not provide the following benefits :

   * Low overheads as compared to HVM.
   * Also support systems/procedures with no hardware-virtualization support.


Of course, the benefits of PV need to be really high, to justify the
efforts needed to make the required code-changes for PV-support :P


On Tue, Apr 3, 2018 at 4:20 PM, Julien Grall <julien.grall@xxxxxxxxxx> wrote:
>
>
> On 03/04/18 11:17, Ajay Garg wrote:
>>
>> Hi All.
>
>
> Hi,
>
>> Since last few days, I have been attempting to understand the
>> minios/xen/rumprun/unikraft/x86/arm ecosystem, and (if not wrong) have come
>> to the conclusion that a unikernel run as a PV guest on either of x86/arm
>> would run in all cases (and not be dependent upon hardware-virtualization
>> support).
>>
>> Now, since PV is a pure software-solution, I wonder if a common codebase
>> is possible for x86 and arm?
>> Or the differences in x86 and arm structures will eventually lead to
>> (some) differences in PV-code for x86 and arm?
>
>
> As I said yesterday in an answer one of your thread. There are (and will be)
> no support of PV guest in Xen on Arm.
>
> So there are no point to discuss about a single codebase for that.
>
> Cheers,
>
> --
> Julien Grall



-- 
Regards,
Ajay

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