Re: [Xen-devel] PCI passthrough with stubdomain

[Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>]

On Fri, Sep 23, 2016 at 11:00:42PM +0200, Samuel Thibault wrote:
> Marek Marczykowski-Górecki, on Fri 23 Sep 2016 20:56:43 +0200, wrote:
> > 1. How to do this? ;) I.e. what synchronization primitives are available
> > in mini-os? Just pthread_mutex_lock/unlock?
> 
> pthread_mutex_lock are nops :o) because we don't have pthread_create.
> But for mini-os itself there are synchronization primitives, yes:
> there are also semaphores (./include/semaphore.h) and waitqueues
> (include/wait.h).

Ok, will take a look at this. Thanks.

> > 2. Wouldn't the same problem be with other stubdomain implementations?
> > Like Linux + qemu-xen or rumprun + qemu-xen? At least in Linux case
> > pcifront driver will also needs some time for initialization...
> 
> Possibly, I don't know about them, they didn't exist at the time ;)

Actually they don't exist even now ;) But hopefully will, in the near
future...

-- 
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?

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