At 02/28/2012 07:23 PM, Avi Kivity Wrote: > On 02/27/2012 05:01 AM, Wen Congyang wrote: >> We can know the guest is paniced when the guest runs on xen. >> But we do not have such feature on kvm. This patch implemnts >> this feature, and the implementation is the same as xen: >> register panic notifier, and call hypercall when the guest >> is paniced. > > What's the motivation for this? "Xen does this" is insufficient. Another purpose is: management app(for example: libvirt) can do auto dump when the guest is crashed. If management app does not do auto dump, the guest's user can do dump by hand if he sees the guest is paniced. I am thinking about another status: dumping. This status tells the guest's user that the guest is paniced, and the OS's dump function is working. These two status can tell the guest's user whether the guest is pancied, and what should he do if the guest is paniced. Thanks Wen Congyang -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
