[libvirt] [PATCH] qemu: ignore query-sev-capabilities errors

[Andrea Bolognani]

On Thu, 2018-06-14 at 09:40 +0200, Ján Tomko wrote:
> The query-sev-capabilities command fails if SEV is not compiled in,
> even though both the command and -object sev-guest are present
> in that case :/
> 
> Ignore the errors to avoid spamming the logs:
> internal error: unable to execute QEMU command 'query-sev-capabilities': SEV feature is not available
> 
> Signed-off-by: Ján Tomko <jtomko at redhat.com>
> ---
>  src/qemu/qemu_monitor_json.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
> index c5480a2d0e..aa89ea7056 100644
> --- a/src/qemu/qemu_monitor_json.c
> +++ b/src/qemu/qemu_monitor_json.c
> @@ -6423,6 +6423,12 @@ qemuMonitorJSONGetSEVCapabilities(qemuMonitorPtr mon,
>      if (qemuMonitorJSONCommand(mon, cmd, &reply) < 0)
>          goto cleanup;
>  
> +    /* Both -object sev-guest and query-sev-capabilities can be present
> +     * even if SEV is not available */
> +    if (qemuMonitorJSONHasError(reply, "GenericError")) {
> +        ret = 0;
> +        goto cleanup;
> +    }
>  
>      if (qemuMonitorJSONCheckError(cmd, reply) < 0)
>          goto cleanup;

Reviewed-by: Andrea Bolognani <abologna at redhat.com>

-- 
Andrea Bolognani / Red Hat / Virtualization