On 20/06/2016 04:11, Haozhong Zhang wrote: >>> > > Does that mean we can automatically enable LMCE for "-cpu host"? >> > >> > We can automatically enable LMCE for "-cpu host" if and only if >> > the host kernel supports LMCE. >> > > According to our discussion for KVM Patch 3, we may have to disable it > by default by -cpu host, so that pc-2.7 will not require new kernels > unless LMCE is required explicitly by users.
-cpu host is a bit special, it requires the same processor and kernel on both sides of a migration. So it can enable LMCE. Paolo
