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Project ACRN hypervisor
7647517a15
Currently acrn partitions cpus between SOS and UOS, so the default policy is to allow guest managing CPU px state. However we would not blindly passthrough perf_ctrl MSR to guest. Instead guest access is always trapped and validated by acrn hypervisor before forwarding to pcpu. Doing so leaves room for future power budget control in hypervisor, e.g. limiting turbo percentage that a cpu can enter. Signed-off-by: Victor Sun <victor.sun@intel.com> Acked-by: Kevin Tian <kevin.tian@intel.com> |
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