http://lists.xen.org/archives/html/xen-changelog/2014-08/msg00078.html
なんか複雑そうね。
[Xen-changelog] [xen master] Revert "x86/paging: make log-dirty operations preemptible"
http://lists.xen.org/archives/html/xen-changelog/2014-08/msg00083.html
This fix has been discovered to cause regressions. Investigations are ongoing.
[Xen-changelog] [xen stable-4.4] x86/cpu: undo BIOS CPUID max_leaf limit before querying for features
http://lists.xen.org/archives/html/xen-changelog/2014-08/msg00065.html
If IA32_MISC_ENABLE[22] is set by the BIOS, CPUID.0.EAX will be limited to 3.
Lift this limit before considering whether to query CPUID.7[ECX=0].EBX for features.
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