From: Christian Limpach <christian.limpach@gmail.com>
To: Ryan Harper <ryanh@us.ibm.com>
Cc: xen-devel@lists.xensource.com
Subject: Re: [PATCH][RESUBMIT] add dom0 vcpu hotplug control
Date: Tue, 21 Jun 2005 12:02:20 +0100 [thread overview]
Message-ID: <3d8eece205062104023b62ebe3@mail.gmail.com> (raw)
In-Reply-To: <20050614163718.GB7954@us.ibm.com>
On 6/14/05, Ryan Harper <ryanh@us.ibm.com> wrote:
> * Ryan Harper <ryanh@us.ibm.com> [2005-06-07 17:05]:
> > This patch adds new control messages for vcpu hotplug events. Via the
> > xm vcpu_hotplug sub-program, VCPUS in domains can be enabled/disabled
> > when CONFIG_HOTPLUG_CPU is enabled in the target domain's kernel.
> >
>
> Updated this patch to use vcpu_to_cpu up/down info to control whether
> state changes are sent when hotplugging vcpus.
I've applied both patches. I think there's a flaw in the way how
vcpu_to_cpu gets passed up to python, the -1 -> # hack is kind of
gross and it won't work for cpus > 9?
Also the whole hotplug stuff is still missing interrupt re-routing
when a vcpu is taken down. To do this, we need an evtchn operation to
change the vcpu affinity of a port by changing notify_vcpu_id.
christian
next prev parent reply other threads:[~2005-06-21 11:02 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-07 22:02 [PATCH] add dom0 vcpu hotplug control Ryan Harper
2005-06-14 16:37 ` [PATCH][RESUBMIT] " Ryan Harper
2005-06-21 11:02 ` Christian Limpach [this message]
2005-06-21 14:14 ` Ryan Harper
2005-06-22 21:01 ` Ryan Harper
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