Module devices::tsc

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Handles operations using platform Time Stamp Counter (TSC).

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  • Returns the Bus frequency in Hz, based on reading Intel-specific cpuids, or None if the frequency can’t be determined from cpuids.
  • Calibrate the TSC state.
  • Given the tsc frequency in Hz and the bus frequency in Hz, return a fake version of cpuid leaf 0x15.
  • Given the state of the host TSCs in tsc_state, and the number of vcpus that are intended to be run, return a set of affinities and TSC offsets to apply to those vcpus.
  • rdtsc_safe 🔒
  • Get the standard deviation of a Vec<T>.
  • Returns the TSC frequency in Hz, based on reading Intel-specific cpuids, or None if the frequency can’t be determined from cpuids.
  • Returns the frequency of the host TSC. Calibration only happens once.
  • Gets the TSC frequency for cpuid leaf 0x15 from the existing leaves 0x15 and 0x16.
  • Returns the state of the host TSCs. Calibration only happens once.

Type Aliases§

  • Function to retrieve the given CPUID leaf and sub-leaf.