From: Samuel Thibault <samuel.thibault@ens-lyon.org>
To: "Marek Marczykowski-Górecki" <marmarek@invisiblethingslab.com>
Cc: HW42 <hw42@ipsumj.de>, xen-devel <xen-devel@lists.xen.org>
Subject: Re: PCI passthrough with stubdomain
Date: Fri, 23 Sep 2016 23:00:42 +0200 [thread overview]
Message-ID: <20160923210042.GA18469@var.home> (raw)
In-Reply-To: <20160923185643.GD31510@mail-itl>
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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next prev parent reply other threads:[~2016-09-23 21:00 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-23 8:48 PCI passthrough with stubdomain Marek Marczykowski-Górecki
2016-09-23 9:22 ` Jan Beulich
2016-09-23 13:27 ` Samuel Thibault
2016-09-23 14:25 ` Marek Marczykowski-Górecki
2016-09-23 14:51 ` Samuel Thibault
2016-09-23 18:56 ` Marek Marczykowski-Górecki
2016-09-23 21:00 ` Samuel Thibault [this message]
2016-09-23 21:04 ` Marek Marczykowski-Górecki
2016-09-23 15:35 ` Konrad Rzeszutek Wilk
2016-09-23 18:47 ` Marek Marczykowski-Górecki
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