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ac1cb3cd7c
On RHEL 10.2 aarch64 (only) we see:
$ echo '{ "execute": "qmp_capabilities" }' '{ "execute": "query-kvm" }' '{ "execute": "quit" }' | QEMU_AUDIO_DRV=none "/usr/libexec/qemu-kvm" -display none -machine "virt,accel=kvm:hvf:tcg" -qmp stdio
qemu-kvm: invalid accelerator hvf
qemu-kvm: falling back to KVM
{"QMP": {"version": {"qemu": {"micro": 0, "minor": 1, "major": 9}, "package": "qemu-kvm-9.1.0-15.el10_0.4"}, "capabilities": ["oob"]}}
qemu-kvm: warning: CPU model cortex-a57-arm-cpu is deprecated -- use 'host' / 'max'
qemu-kvm: kvm_init_vcpu: kvm_arch_init_vcpu failed (0): Invalid argument
Unfortunately we cannot use guestfs_int_get_cpu_model (as that
requires us to already know if KVM is supported), so we just have to
guess that -cpu max will work, at least enough for QMP to work.
Fixes: https://issues.redhat.com/browse/RHEL-121076
Reported-by: Xiang Hua Chen