Il 16/08/2013 11:49, Alexey Kardashevskiy ha scritto:
> With KVM, we could fall back to the qemu implementation
>> + * when KVM doesn't support them, but that would be much slower
>> + * than just using the KVM implementations of the single TCE
>> + * hypercalls. */
>> + if (kvmppc_spapr_use_multitce()) {
>> + _FDT((fdt_property(fdt, "ibm,hypertas-functions", hypertas_propm,
>> + sizeof(hypertas_propm))));
>> + } else {
>> + _FDT((fdt_property(fdt, "ibm,hypertas-functions", hypertas_prop,
>> + sizeof(hypertas_prop))));
>> + }
This prevents migration from newer kernel to older kernel. Can you
ensure that the fallback to the QEMU implementation works, even though
it is not used in practice?
Paolo
