MSR_IA32_UCODE_REV  586 arch/x86/include/asm/msr-index.h #define MSR_IA32_UCODE_REV		0x0000008b
MSR_IA32_UCODE_REV  814 tools/testing/selftests/kvm/include/x86_64/processor.h #define MSR_IA32_UCODE_REV		0x0000008b