blob: c16221dd90748407bccb8218fc0fd50dbc9a974c (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
|
Confuse error message when KVM can not start requested CPU
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.
|