On 11/10/2010 02:34 AM, Avi Kivity wrote:
Why the gpa -> hva mapping is not
consistent for RAM if -mempath is not used?
Video RAM in the range a0000-bffff and PCI mapped RAM can change gpas
(while remaining in the same hva).
Even for ordinary RAM, which doesn't normally change gpa/hva, I'm not
sure we want to guarantee that it won't.
We can't universally either. Memory hot remove potentially breaks the
mapping and some non-x86 architectures (like ARM) can alias RAM via a
guest triggered mechanism.
Regards,
Anthony Liguori
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