On 08/09/2013 12:29 AM, Yinghai Lu wrote: ......
Please check if you can reuse first half of my patchset, so find and copy override table earlier. the copied acpi tables could be near kernel code range.
I don't think we need to do the finding step at that early time, in head64.c stage. Before pagetables are setup, we can use early_ioremap() to map the memory we want to access. We don't need to use phys addr. We can do it in setup_arch(), which has nothing to do with 32bit or 64bit.
Move finding in head64.c stage could help xen/dom0 a bit. as Konrad is working on patchset with acpi override in xen hypervisor. We can avoid override acpi table two times. Esp xen like to change DMAR to XMAR.
Would you please give some more info about this, and explain why finding override tables in head64.c stage is helpful for xen ? Thanks. -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
