On Mon, May 05, 2014 at 08:23:43PM -0300, Marcelo Tosatti wrote: > Hi Alexander, > > On Mon, May 05, 2014 at 03:51:22PM +0200, Alexander Graf wrote: > > When we migrate we ask the kernel about its current belief on what the guest > > time would be. > > KVM_GET_CLOCK which returns the time in "struct kvm_clock_data". > > > However, I've seen cases where the kvmclock guest structure > > indicates a time more recent than the kvm returned time.
This should not happen because the value returned by KVM_GET_CLOCK (get_kernel_ns() + kvmclock_offset) should be relatively in sync with what is seen in the guest via kvmclock read.
