Hi, experts: I am studying IA32/X64 Programmer manual.
There is a sentence(Volume-3A, 10.11.5 Section): On a hardware reset, the P6 and more recent processors clear the valid flags in variable-range MTRRs and clear the E flag in the IA32_MTRR_DEF_TYPE MSR to disable all MTRRs. All other bits in the MTRRs are undefined. So, how about FE bit in IA32_MTRR_DEF_TYPE MSR? Is it also be cleared on a hardware reset? Best wishes,
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