MSR_AMD64_NB_CFG  408 arch/x86/include/asm/msr-index.h #define MSR_AMD64_NB_CFG		0xc001001f
MSR_AMD64_NB_CFG  632 tools/testing/selftests/kvm/include/x86_64/processor.h #define MSR_AMD64_NB_CFG		0xc001001f