From: Dario Faggioli <dario.faggioli@citrix.com>
To: Juergen Gross <jgross@suse.com>, Wei Liu <wei.liu2@citrix.com>
Cc: sstabellini@kernel.org, george.dunlap@eu.citrix.com,
Dongli Zhang <dongli.zhang@oracle.com>,
tim@xen.org, xen-devel@lists.xen.org, david.vrabel@citrix.com,
jbeulich@suse.com, andrew.cooper3@citrix.com,
ian.jackson@eu.citrix.com
Subject: Re: [PATCH v3 1/1] xen: move TLB-flush filtering out into populate_physmap during vm creation
Date: Thu, 8 Sep 2016 16:49:01 +0200 [thread overview]
Message-ID: <1473346141.19612.164.camel@citrix.com> (raw)
In-Reply-To: <07306b9e-9bd5-0276-4df7-ffb1c8c0e792@suse.com>
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On Thu, 2016-09-08 at 13:19 +0200, Juergen Gross wrote:
> The first scheduling is done via unpausing the domain. Why not
> setting
> the flag to true in that path?
>
That could be a good idea.
And in general, I'm all for finding a place and/or a state that better
represents the condition of "setting to run this vcpu for the first
time" and set the flag there, rather than re-assigning 1 to an
"already_scheduled" flag each an every time we go through schedule()
(and not for performance and optimization reason).
Which domain_unpause() (or whatever) do you have in mind precisely?
Thanks and Regards,
Dario
--
<<This happens because I choose it to happen!>> (Raistlin Majere)
-----------------------------------------------------------------
Dario Faggioli, Ph.D, http://about.me/dario.faggioli
Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)
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next prev parent reply other threads:[~2016-09-08 14:49 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-08 5:30 [PATCH v3 1/1] xen: move TLB-flush filtering out into populate_physmap during vm creation Dongli Zhang
2016-09-08 7:19 ` Dario Faggioli
2016-09-08 10:50 ` Wei Liu
2016-09-08 11:01 ` Dario Faggioli
2016-09-08 11:11 ` Wei Liu
2016-09-08 11:19 ` Juergen Gross
2016-09-08 14:49 ` Dario Faggioli [this message]
2016-09-08 14:52 ` Andrew Cooper
2016-09-08 14:28 ` Ian Jackson
2016-09-08 15:36 ` Jan Beulich
2016-09-08 15:53 ` Dario Faggioli
-- strict thread matches above, loose matches on Subject: below --
2016-09-09 5:37 Dongli Zhang
2016-09-09 7:56 ` Jan Beulich
2016-09-09 9:34 ` Andrew Cooper
2016-09-09 9:46 ` Jan Beulich
2016-09-09 9:52 ` Andrew Cooper
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