Re: [Xen-devel] PCI passthrough with stubdomain

[Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>]

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).

> 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 ;)

Samuel

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