On Mon, 02 Mar 2015 14:57:21 +0100
Andreas Färber <afaer...@suse.de> wrote:
> > int configure_accelerator(MachineState *ms)
> > {
> > - const char *p;
> > + const char *p, *name;
> > char buf[10];
> > int ret;
> > bool accel_initialised = false;
> > bool init_failed = false;
> > AccelClass *acc = NULL;
> > + ObjectClass *oc;
> > + bool probe_mode = false;
> >
> > p = qemu_opt_get(qemu_get_machine_opts(), "accel");
> > if (p == NULL) {
> > - /* Use the default "accelerator", tcg */
> > - p = "tcg";
> > + oc = (ObjectClass *) MACHINE_GET_CLASS(current_machine);
> > + name = object_class_get_name(oc);
> > + probe_mode = !strcmp(name, "none" TYPE_MACHINE_SUFFIX);
> > + if (probe_mode) {
> > + /* Use these accelerators in probe mode, tcg should be last */
> > + p = probe_mode_accels;
> > + } else {
> > + /* Use the default "accelerator", tcg */
> > + p = "tcg";
> > + }
> > }
>
> Can't we instead use an explicit ,accel=probe or ,accel=auto?
> That would then obsolete the next patch.
How would you express the following with the accel=<pseudo-accel> approach?
-probe -machine s390-ccw,accel=kvm
Using machine "none" as default with tcg as last accelerator initialized should
not break
anything.
-M none
The return code of configure_accelerator() is ignored anyway.
Thanks,
Michael
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