Am 03.01.2011 13:32, Avi Kivity wrote: > On 01/03/2011 02:11 PM, Jan Kiszka wrote: >> Hi again, >> >> another subtle difference between qemu-kvm and upstream: >> >> When we leave the guest for an IO window (KVM_RUN returns EINTR or >> EAGAIN), we call kvm_flush_coalesced_mmio_buffer in qemu-kvm but not in >> upstream. When version is better? I can't find any rationales in both >> git logs. > > We must flush on EINTR, otherwise a live migration can leave some mmios > in the source host and not replay them on the destination host. > > (plus, as Gleb says, if you're in userspace you might as well flush) > OK, will append a fix to my series. Thanks, Jan
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