Re: [libvirt] [Xen-devel] [PATCH] libxl: support domainReset
Ian Campbell wrote:
On Tue, 2014-08-05 at 08:06 -0600, Jim Fehlig wrote:
> Ian Campbell wrote:
>
>> On Tue, 2014-08-05 at 10:55 +0200, Olaf Hering wrote:
>>
>>
>>> The original report was that 'Reset' does not work from GUI, like
>>> virt-manager or virsh. I think the expected outcome is like pushing the
>>> reset button on a physical board. Xen doesnt do it that way, no idea
>>> about others.
>>>
>>>
>> Sounds like you want libxl_domain_reboot then, perhaps with a fallback
>> on ERROR_NOPARAVIRT for an HVM guest to sending a trigger.
>>
>>
> Hrm, I don't think that's right . It should be a hard reset
>
> http://libvirt.org/html/libvirt-libvirt.html#virDomainReset
>
> destroy/start seems the correct way to implement this.
>
Yes, given that requirement it is. Sorry for the noise.
Would some sort of hard reset API be useful in libxl?
Sure. I think having an API that emulates a power reset button would be
a nice addition to libxl's domain operations. The destroy/start
approach incurs a small bit of overhead, which would be avoided with
such an API. Clients (perhaps incorrectly) implementing their own
notion of reset would also be avoided.
In the absence of libxl_domain_reset(), do folks think the destroy/start
approach is acceptable? As Olaf mentioned, it allows "Force Reset" to
work via virt-manager.
Regards,
Jim