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Re: QEMU Plugins to monitor VM state changes
From: |
Alex Bennée |
Subject: |
Re: QEMU Plugins to monitor VM state changes |
Date: |
Fri, 01 Jul 2022 11:42:39 +0100 |
User-agent: |
mu4e 1.7.27; emacs 28.1.90 |
Jayakrishna Vadayath <jvadayat@asu.edu> writes:
> Hi,
>
> I'm very new to writing QEMU plugins and I was looking for a way that a
> plugin could be notified of a change in the VM state.
> For example, the -S flag is used to change the state using the runstate_set
> function.
> In this case, would it be possible for a plugin to be notified of this
> change ?
Currently you can register idle/resume callbacks which can be used to
show when the vCPU is sleeping waiting for I/O. The wider state in QEMU
of when the vCPU is stopped is not reported as it should not be visible
to the guest.
What are you trying to achieve?
>
> Thank you for you help.
--
Alex Bennée
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