On Fri, Jun 13, 2014 at 07:00:17PM +0200, Daniel Kiper wrote: > Use early_mem*() instead of early_io*() because all mapped EFI regions > are true RAM not I/O regions. Additionally, I/O family calls do not work > correctly under Xen in our case. AIUI, early_io*() maps/unmaps real machine > addresses. However, all artificial EFI structures created under Xen live > in dom0 memory and should be mapped/unmapped using early_mem*() family > calls which map domain memory.
Mapped EFI regions may include memory mapped flash, not merely true RAM. -- Matthew Garrett | mj...@srcf.ucam.org -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
