Re: [Xen-API] OS X DomU Driver Porting

[Anil Madhavapeddy <anil@xxxxxxxxxx>]

On 27 Jun 2013, at 23:31, Alan Forbes <aforbes@xxxxxxxxxxxxxx> wrote:

> Hi Pasi,
> You may be absolutely correct on that one... but do remember that most Linux 
> DomUs are PV, not HVMs.
> 
> The windows drivers stand as a good guide or reference for building these 
> things, if anyone is up to the challenge..?

It certainly would be a challenge to use the Windows drivers to build a MacOS X 
driver.

If you actually want to do it sensibly instead, it's a fairly basic exercise in 
device driver construction to follow the Xen HVM protocol to bootstrap 
hypercalls in MacOS X, and then use IOKit to adapt the FreeBSD drivers once 
rings and event channels work.

-anil



> 
> Cheers,
> Alan
> 
> 
> On 27/06/2013, at 8:00 PM, Pasi Kärkkäinen <pasik@xxxxxx> wrote:
> 
>> On Thu, Jun 27, 2013 at 06:42:18PM +1000, Alan Forbes wrote:
>>> Hi all,
>>> Now that the Guest Agent, XenVif, XenBus, etc drivers for Windows are 
>>> open-sourced and available freely online, is there a possibility of having 
>>> these drivers ported to OS X as a first step to officially (possibly) 
>>> supporting OS X guests ?
>>> 
>>> There is the question of the legalities of running OS X as a guest; I am 
>>> not asking about that, and am only asking about driver/kext support using 
>>> existing code.
>>> 
>> 
>> I'm guessing it'd be easier to port Linux/FreeBSD drivers to OSX than 
>> Windows drivers.. OSX is UNIX after all.
>> 
>> -- Pasi
>> 
> 
> 
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