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.