Hi,

>> Figured meanwhile the instruction accessing the lapic register somehow
>> beames me into my gpf handler.  With a quite strange rsp value.  Hmm.
>> To be analyzed further after kvm forum I guess, unless someone has a
>> bright idea ...

> x86-64 will gpf if an address is not canonical.  ffff820000000000 is
> canonical, but perhaps a type killed a zero somewhere?

Doesn't look like.  Tried to analyze that.  Compiled lastest kvm.git
kernel (to get kvmtrace support), booted, and noticed "kvm-amd npt=0"
doesn't work at all ...

cheers,
  Gerd

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