qemu/accel/kvm
Dr. David Alan Gilbert d0a92b353e kvm: kvm_init_vcpu take Error pointer
Clean up the error handling in kvm_init_vcpu so we can see what went
wrong more easily.

Make it take an Error ** and fill it out with what failed, including
the cpu id, so you can tell if it only fails at a given ID.

Replace the remaining DPRINTF by a trace.

This turns a:
kvm_init_vcpu failed: Invalid argument

into:
kvm_init_vcpu: kvm_get_vcpu failed (256): Invalid argument

and with the trace you then get to see:

19049@1595520414.310107:kvm_init_vcpu index: 169 id: 212
19050@1595520414.310635:kvm_init_vcpu index: 170 id: 256
qemu-system-x86_64: kvm_init_vcpu: kvm_get_vcpu failed (256): Invalid argument

which makes stuff a lot more obvious.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200723160915.129069-1-dgilbert@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-05 16:41:22 +02:00
..
kvm-all.c kvm: kvm_init_vcpu take Error pointer 2020-10-05 16:41:22 +02:00
kvm-cpus.c kvm: kvm_init_vcpu take Error pointer 2020-10-05 16:41:22 +02:00
kvm-cpus.h kvm: kvm_init_vcpu take Error pointer 2020-10-05 16:41:22 +02:00
meson.build cpus: extract out kvm-specific code to accel/kvm 2020-10-05 16:41:22 +02:00
sev-stub.c kvm: introduce memory encryption APIs 2018-03-13 12:04:03 +01:00
trace-events kvm: kvm_init_vcpu take Error pointer 2020-10-05 16:41:22 +02:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00