On Thu, 2 Jun 2016 11:53:22 -0300
Eduardo Habkost <[email protected]> wrote:
> (CCing libvirt folks)
>
> BTW:
>
> On Thu, Jun 02, 2016 at 02:22:22PM +0200, Igor Mammedov wrote:
> [...]
> > > /* Special cases: */
> > > if (!strcmp(name, "xlevel")) {
> > > numvalue = strtoul(val, &err, 0);
> > > if (!*val || *err) {
> > > error_setg(errp, "bad numerical value %s", val);
> > > return;
> > > }
> > > if (numvalue < 0x80000000) {
> > > error_report("xlevel value shall always be >= 0x80000000"
> > > ", fixup will be removed in future
> > > versions");
> > > numvalue += 0x80000000;
> > > snprintf(num, sizeof(num), "%" PRIu32, numvalue);
> > > val = num;
> [...]
> > > } else if (!strcmp(name, "hv-spinlocks")) {
> > > const int min = 0xFFF;
> > >
> > > numvalue = strtoul(val, &err, 0);
> > > if (!*val || *err) {
> > > error_setg(errp, "bad numerical value %s", val);
> > > return;
> > > }
> > > if (numvalue < min) {
> > > error_report("hv-spinlocks value shall always be >= 0x%x"
> > > ", fixup will be removed in future versions",
> > > min);
> > > numvalue = min;
> > > }
>
> Those "fixup will be removed in future versions" warnings are
> present since QEMU 1.7. Assuming that libvirt never allowed those
> invalid values to be used in the configuration (did it?), I
> believe we can safely remove the hv-spinlocks and xlevel fixups
> in QEMU 2.7.
>
> The hv-spinlocks setter already rejects invalid values. We just
> need to make x86_cpu_realizefn() reject invalid xlevel values.
I'll leave axing them to you.
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