> kernel, is there a way to trap all uses of the CPUID instruction? On the Probably not. That's why I said: Don't patch the kernel but patch the tools creating the code using CPUID by making the tools create fake code. Eg make the assembler replace usagce of CPUID by some other assembler code returning a constant string. So after having done this no executable should contain tha CPUID instruction anymore. However this can break code
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