发明名称 Tracking current time on multiprocessor hosts and virtual machines
摘要 An operating system in a virtual environment can obtain the current time of the processor that the OS is utilizing through a method for synchronizing timers on multiple processors with a standard reference time, such as the Coordinated Universal Time (UTC). A hypervisor controlling the processors obtains a number of synchronization values that, together with a local timer counter value, are utilized by the guest operating system to determine the physical processor time.
申请公布号 US7870411(B2) 申请公布日期 2011.01.11
申请号 US20070879338 申请日期 2007.07.17
申请人 XENSOURCE, INC. 发明人 FRASER KEIR;PRATT IAN ALEXANDER
分类号 G06F1/12;G06F13/42;G06F15/16 主分类号 G06F1/12
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