graphic: 0.959 device: 0.927 instruction: 0.925 KVM: 0.898 semantic: 0.849 boot: 0.800 vnc: 0.655 network: 0.644 other: 0.590 mistranslation: 0.483 socket: 0.340 assembly: 0.202 CPUID.07H:EBX.intel-pt not supported warning info shown in terminal when start guest with -cpu qemu64,+intel-pt Description of problem: When launch guest with qemu-system-x86_64 with parameter -cpu host,+intel-pt, it will show warning info in terminal : qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.07H:EBX.intel-pt [bit 25] 'intel_pt' can not be found in guest's CPU flag. While host already support intel_pt. Steps to reproduce: 1. Run the above QEMU command. Additional information: This issue was observed with kernel 5.13 qemu-system-x86_64 -accel kvm -m 4096 -smp 4 -cpu host,+intel-pt,min-level=0x14 qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.07H:EBX.intel-pt [bit 25] qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.07H:EBX.intel-pt [bit 25] qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.07H:EBX.intel-pt [bit 25] qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.07H:EBX.intel-pt [bit 25]