How to present a fixed CPU clock speed for a Windows 11 virtual machine?

Question

I used Qemu to start the Windows 11 virtual machine on arm. I saw that the clock speed of each CPU was different, I wanted to set it to a fixed value. How to present a fixed CPU clock speed to a Windows virtual machine?

Here's what to try:

Method 1:

Set fields such as LowestFrequency and NominalFrequency in ACPI's Collaborative Processor Perfermance Control (CPPC) table, and then present them to the Windows virtual machine, but they do not take effect.

Method 2:

Set fields such as Max Speed and Current Speed in the Processor Inofrmation (Type 4) table of SMBIOS, and then present them to the Windows virtual machine, but they also do not take effect.