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Intel <=> AMD

Intel <=> AMD

Posted Mar 4, 2007 6:04 UTC (Sun) by avik (guest, #704)
In reply to: Intel <=> AMD by addw
Parent article: KVM 15

Programs detect cpu capabilities by means of the cpuid instruction. Since
that instruction is itself virtualized and controlled by the host
userspace, one can tell virtualize a processor with the least capabilities
that are in use on the server farm. Gievn that, programs will only use
instructions that are present on all processors that can be a migration
target.


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