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Implement TSC scaling for platforms that support it #27

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StrikerX3 opened this issue Dec 3, 2019 · 0 comments
Open

Implement TSC scaling for platforms that support it #27

StrikerX3 opened this issue Dec 3, 2019 · 0 comments

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@StrikerX3
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StrikerX3 commented Dec 3, 2019 •
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Currently, both WHPX and KVM support guest TSC scaling, but virt86 doesn't apply them.

WHPX: set the ProcessorClockFrequency field in the WHV_PARTITION_PROPERTY structure while setting up the partition. TSC scaling is supported since Insider Preview 19H2 (check exact version number).

KVM: check for KVM_CAP_TSC_CONTROL capability. Use KVM_SET_TSC_KHZ to apply the desired TSC frequency.
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