On Fri, 04 Sep, at 03:24:21PM, Ard Biesheuvel wrote: > > Since the UEFI spec does not mandate an enumeration order for > GetMemoryMap(), it seems to me that you still need to sort its output > before laying out the VA space. Since you need to sort it anyway, why > not simply sort it in reverse order and keep all the original code? > Considering that this is meant for stable, that would keep the delta > *much* smaller. Hmm... that'd be a neat trick and while it would save on the diff size, I don't think it would be smaller in terms of change complexity. EDK2 sorts the memory map when EFI_PROPERTIES_TABLE is enabled, so we can be reasonably sure the entry order returned by GetMemoryMap() is compatible with the split regions, even if it's not mandated by the spec. For the non-EFI_PROPERTIES_TABLE case, things have been working fine without the sorting, so I'm reluctant to introduce it now (it's also much less of an issue there). -- Matt Fleming, Intel Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
