From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Jan Beulich" <JBeulich@suse.com>
Subject: Re: Question regarding Xen scheduler
Date: Fri, 10 Oct 2014 09:12:13 +0100
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To: Kelly Zytaruk <Kelly.Zytaruk@amd.com>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>, "xen-devel@lists.xen.org" <xen-devel@lists.xen.org>
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>>> On 08.10.14 at 15:57, <andrew.cooper3@citrix.com> wrote:
> On 08/10/14 14:05, Zytaruk, Kelly wrote:
>> What if I am doing something time critical or sequence critical that can't 
> be interrupted?  Is there a way to tell the Xen scheduler that "I am in a 
> critical section and can't be interrupted by another Dom" so that Xen won't 
> task switch until I am done?
> 
> No.

But I'd like to note that suggestions to add some mechanism to
allow this have been made more than once in the past.

Jan