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kernel: 0.979
graphic: 0.959
x86: 0.949
device: 0.927
KVM: 0.898
semantic: 0.849
architecture: 0.822
boot: 0.800
TCG: 0.771
debug: 0.744
user-level: 0.730
ppc: 0.728
PID: 0.721
VMM: 0.700
i386: 0.676
performance: 0.675
vnc: 0.655
network: 0.644
register: 0.619
permissions: 0.617
hypervisor: 0.609
mistranslation: 0.483
arm: 0.482
risc-v: 0.447
files: 0.434
virtual: 0.409
socket: 0.340
peripherals: 0.328
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]
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