** Tags added: ui -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1914748
Title: Confuse error message when KVM can not start requested CPU Status in QEMU: New Bug description: As of commit 1ba089f2255, on Cavium CN8890 (ThunderX cores): $ qemu-system-aarch64 -display none -accel kvm -M virt,gic-version=3 -accel kvm -cpu cortex-a57 --trace \*kvm_vcpu\* kvm_vcpu_ioctl cpu_index 0, type 0x4020aeae, arg 0xffff9b7f9b18 qemu-system-aarch64: kvm_init_vcpu: kvm_arch_init_vcpu failed (0): Invalid argument (same using "-cpu cortex-a53" or cortex-a72). Explanation from Peter Maydell on IRC: > using a specific cpu type will only work with KVM if the host CPU really is that > exact CPU type, otherwise, use "-cpu host" or "-cpu max" Having a better error description would help to understand the reason. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1914748/+subscriptions