linux-kernel - Re: [Xen-devel] [patch 30/44] xen: Add support for preemption

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Message-ID: <47289A3F.4040608@goop.org>
Date:	Wed, 31 Oct 2007 08:07:43 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	tgh <wwwwww4187@...a.com.cn>
CC:	Xen-devel <xen-devel@...ts.xensource.com>,
	Jeremy Fitzhardinge <jeremy@...source.com>,
	Andi Kleen <ak@...e.de>, lkml <linux-kernel@...r.kernel.org>,
	Chris Wright <chrisw@...s-sol.org>
Subject: Re: [Xen-devel] [patch 30/44] xen: Add support for preemption

tgh wrote:
> Thank you for your reply
> and what about the kernel thread in the xen hypervisor,are there some
> instance of kernel threads running in the hypervisor?
> I am not sure ,but somewhere I read that there is no kernel thread in
> the xen hypervisor ,is it true or what about it?
>   

No, there are no linux kernel threads in the hypervisor. The only
thread-like thing Xen has is a virtual CPU, and they're always guest
domain vcpus.

J
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