CPUID_1_ECX 907 arch/x86/kernel/cpu/common.c c->x86_capability[CPUID_1_ECX] = ecx; CPUID_1_ECX 525 arch/x86/kvm/cpuid.c cpuid_mask(&entry->ecx, CPUID_1_ECX); CPUID_1_ECX 45 arch/x86/kvm/cpuid.h [CPUID_1_ECX] = { 1, 0, CPUID_ECX},