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From: "Denis V. Lunev" <den@openvz.org>
Message-ID: <55F1D788.8070908@openvz.org>
Date: Thu, 10 Sep 2015 22:18:32 +0300
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Subject: Re: [Qemu-devel] [PATCH 2/5] disk_deadlines: add request to resume
 Virtual Machine
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To: Stefan Hajnoczi <stefanha@gmail.com>
Cc: Kevin Wolf <kwolf@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, Stefan Hajnoczi <stefanha@redhat.com>, qemu-devel@nongnu.org, Raushaniya Maksudova <rmaksudova@virtuozzo.com>

On 09/10/2015 11:51 AM, Stefan Hajnoczi wrote:
> On Tue, Sep 08, 2015 at 11:00:25AM +0300, Denis V. Lunev wrote:
>> From: Raushaniya Maksudova <rmaksudova@virtuozzo.com>
>>
>> In some cases one needs to pause and resume a Virtual Machine from inside
>> of Qemu. Currently there are request functions to pause VM (vmstop), but
>> there are no respective ones to resume VM.
>>
>> Signed-off-by: Raushaniya Maksudova <rmaksudova@virtuozzo.com>
>> Signed-off-by: Denis V. Lunev <den@openvz.org>
>> CC: Stefan Hajnoczi <stefanha@redhat.com>
>> CC: Kevin Wolf <kwolf@redhat.com>
>> CC: Paolo Bonzini <pbonzini@redhat.com>
>> ---
>>   include/sysemu/sysemu.h |  1 +
>>   stubs/vm-stop.c         |  5 +++++
>>   vl.c                    | 18 ++++++++++++++++++
>>   3 files changed, 24 insertions(+)
> Why can't vm_start() be used?
>

we do fear about correct thread to perform this operation.
this code eventually redirect state changing code into
main event loop.