mhpmevent31h

Machine Hardware Performance Counter 31 Control, High half

Alias of mhpmevent31[63:32].

Introduced with the Sscofpmf extension. Prior to that, there was no way to access the upper 32-bits of mhpmevent#{hpm_num}.

Attributes

CSR Address

0x73f

Defining extension

  • Sscofpmf, version >= 0

Length

32-bit

Privilege Mode

M

Format

mhpmevent31h format
Figure 1. mhpmevent31h format

Field Summary

Name Location Type Reset Value

Fields

This CSR has no fields. However, it must still exist (not cause an Illegal Instruction trap) and always return zero on a read.