MSR_IA32_SYSENTER_ESP  127 arch/x86/include/asm/msr-index.h #define MSR_IA32_SYSENTER_ESP		0x00000175
MSR_IA32_SYSENTER_ESP  394 tools/testing/selftests/kvm/include/x86_64/processor.h #define MSR_IA32_SYSENTER_ESP		0x00000175