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The Hardware Feedback Interface (HFI) and Intel® Thread Director (ITD) features require OS to provide a physical page address to IA32_HW_FEEDBACK_PTR. Then the hardware will update the processor information to the page address. The issue is that guest VM will program its GPA to that MSR, causing great risk of tempering memory. So HFI and ITD should be made invisible to guests, until we provide proper virtulization of those features. Tracked-On: #8463 Signed-off-by: Wu Zhou <wu.zhou@intel.com> Reviewed-by: Junjie Mao <junjie.mao@intel.com> |
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